LAMPS

Technical Field

The present disclosure relates to focusing lens optical modules and LED industrial lamps.

Background

Economic development and social progress have accelerated consumption of resources, leading to a shortage of resources and consequently limiting the pace of economic development and social progress. As a result, energy saving has become an important goal that has attracted great attention from businesses.

In the lighting field, traditional tungsten filament lamps may have high energy consumption, a short life, and be unfriendly to the

environment, which has led to the development of new energy-saving lamps, such as light-emitting diode (LED) lamps, for example. Because LED lamps are energy-saving, environmentally friendly, and have long lives, LED lamps have been increasingly popular in the lighting field. For example, LED industrial lamps are primarily used in workshops, factory buildings, warehouses, gas stations, large supermarkets, exhibition halls, stadiums, and other venues that utilize industrial lighting.

Previous LED industrial lamps may adopt an external reflection shell structure to focus light. Further, previous LED industrial lamps may use a lens and reflection shells at the same time. In a lens structure according to such previous approaches, however, the side of the lens that is proximal to the light-emitting surface of the LED chip may be a concave surface, while the side of the lens that is distal to the light- emitting surface of the LED chip may be a convex surface. Accordingly, the lens can be designed only by changing the curve of the external curved surface. At the same time, the concave surface could weaken the focusing effect of the lens, leading to poor focusing capability of the lens. As a result, such previous approaches having a lens and a reflection poor focusing capability and effect, resulting in low overall lighting efficiency for such previous LED industrial lamps.

Further, previous high power LED industrial lamps may use a plurality of LED chips, which may necessitate the use of a plurality of lenses simultaneously. However, this may result in a complex structure and low efficiency for the lens installation and lamp assembly in such LED industrial lamps. Accordingly, previous high power LED industrial lamps may instead use an array lens module. However, in both of these previous approaches, the lens must be changed when a different light- emitting angle is targeted for the LED industrial lamp. Accordingly, such previous LED industrial lamps may have narrow applicability and use may types of lenses, which can lead to high mold costs.

Brief Description of the Drawings

Figure 1 illustrates a three-dimensional view of the structure of a first embodiment of a focusing lens optical module according to the present disclosure.

Figure 2 illustrates an exploded view of the focusing lens optical module of Figure 1.

Figure 3 illustrates an exploded view from another angle of the focusing lens optical module of Figure 1.

Figure 4 illustrates a cross-sectional view of the focusing lens optical module of Figure 1.

Figure 5 illustrates an exploded view of the structure of a second embodiment of a focusing lens optical module according to the present disclosure.

Figure 6 illustrates an exploded view from another angle of the focusing lens optical module of Figure 5.

Figure 7 illustrates a cross-sectional view of the focusing lens optical module of Figure 5. re 8 illustrates the structure of an LED industrial lamp with adjustable light-emitting angle according to the present disclosure.

Figure 9 illustrates the structure of the LED industrial lamp of Figure 8 from another angle. Figure 10 illustrates an exploded view of the LED industrial lamp of Figure 8.

Figure 11 illustrates an exploded view of the heat dissipater of Figure 10.

Figure 12 illustrates an exploded view of the LED light source unit of Figure 10.

Figure 13 illustrates a partial cross-sectional view of the LED industrial lamp of Figure 8.

Figure 14 illustrates an enlarged view of Part A of Figure 13.

Figure 15 illustrates a partial cross-sectional view of the LED industrial lamp of Figure 8 in another state.

Figure 16 illustrates an enlarged view of Part B of Figure 15.

Detailed Description

Focusing lens optical modules and LED industrial lamps are described herein. For example, one or more embodiments include a lens and a reflector bowl. A bottom end of the lens includes a convex light input surface, and a top end of the lens includes a convex light output surface. The reflector bowl and the lens are disposed opposite to each other to form a receiving chamber including a light-emitting surface of a light-emitting diode (LED) chip of an LED industrial lamp, the reflector bowl includes a light-reflecting surface facing the receiving chamber, and the convex light input surface faces and corresponds to the light-emitting surface of the LED chip.

Embodiments of the present disclosure can provide a focusing lens optical module having a strong focusing capability and excellent focusing effect as compared with previous approaches. Accordingly, an rial lamp installed with a focusing lens optical module according to the present disclosure can have a high overall lighting efficiency (e.g., higher than previous LED industrial lamps). Further, embodiments of the present disclosure can provide an LED industrial lamp with a freely adjustable light-emitting angle, which can improve the universality and application scope of the LED industrial lamp.

In the following detailed description, reference is made to the accompanying drawings that form a part hereof. The drawings show by way of illustration how one or more embodiments of the disclosure may be practiced.

These embodiments are described in sufficient detail to enable those of ordinary skill in the art to practice one or more embodiments of this disclosure. It is to be understood that other embodiments may be utilized and that process, electrical, and/or structural changes may be made without departing from the scope of the present disclosure.

As will be appreciated, elements shown in the various

embodiments herein can be added, exchanged, combined, and/or eliminated so as to provide a number of additional embodiments of the present disclosure. The proportion and the relative scale of the elements provided in the figures are intended to illustrate the embodiments of the present disclosure, and should not be taken in a limiting sense.

As used herein, "a" or "a number of something can refer to one or more such things. For example, "a number of lenses" can refer to one or more lenses.

The present disclosure provides a focusing lens optical module suitable for focusing light emitted from the LED chip of an LED industrial lamp. The focusing lens optical module can include a lens and a reflector bowl. A bottom end of the lens can include a convex light input surface, and a top end of the lens can include a convex light output surface. The reflector bowl and the lens can be disposed opposite to each other to form a receiving chamber including a light-emitting surface of the LED chip of the LED industrial lamp, the reflector bowl can include a light- jrface facing the receiving chamber, and the convex light input surface can face and correspond to the light-emitting surface of the LED chip.

In some embodiments, there are at least two light input surfaces spaced apart, and each of the at least two light input surfaces correspond to an LED chip, such that all LED chips can simultaneously share one same lens. This can integrate the light emitted from all LED chips for output to ensure the consistency of output light type and improve the output efficiency, can further simplify the structure of the LED industrial lamp installed with the focusing lens optical module according to the present disclosure, and can reduce assembly processes to improve assembly efficiency.

In some embodiments, each of the at least two light input surfaces can be equidistantly spaced apart and connected with flat surfaces therebetween. This can ensure that the light emitted from all LED chips is integrated and outputted with improved light type consistency.

In some embodiments, the convex light input surface and the LED chip can be spaced apart vertically. This can facilitate heat dissipation for the LED chips.

In some embodiments, the bottom end of the lens can extend toward the reflector bowl with a support part of a ring structure, and the support part can be disposed outside of the convex light input surface and cooperate with the reflector bowl. This can facilitate the installation between the lens and the reflector bowl. In some embodiments, the convex light input surface and the convex light output surface can be spherical surfaces, and in some embodiments the convex light input surface and the convex light output surface can be elliptical surfaces. This can increase the capability of the focusing lens optical module of the present disclosure to focus light emitted from the LED chips and achieve a better focusing effect.

In some embodiments, the focusing lens optical module can include at least two reflector bowls, each of the at least two reflector ie disposed at a different height, and the lens can be disposable opposite the at least two reflector bowls at different heights so as to change a distance between the LED chip and the convex light input surface. As such, in the event that the same lens is used and according to the actual lighting demand, the focusing lens optical module according to the present disclosure can use reflector bowls at different heights to change the distance between the LED chip and the light input surface, and control the light output angle of the LED industrial lamp installed with the focusing lens optical module according to the present disclosure to change freely in a target angle range (e.g. in a range of 45 degrees to 100 degrees), thereby improving the universality and application scope of the focusing lens optical module according to the present disclosure.

In some embodiments, the receiving chamber can run through the reflector bowl to facilitate the installation of the light-emitting surface of the LED chip inside the receiving chamber, and an inner wall of the receiving chamber at the reflector bowl can form the light-reflecting surface to facilitate the placement of the light-emitting surface of the LED chip inside the receiving chamber and to facilitate the formation of the light-reflecting surface. In some embodiments, the light-reflecting surface can be an inverted conical surface or a parabolic surface. This can improve reflection of the side light emitted from the LED chips and the light reflected by the lens, thereby improving the overall light efficiency of the focusing lens optical module according to the present disclosure. Because the bottom end and the top end of the lens according to the present disclosure can correspondingly have a convex light input surface and a convex light output surface, the light input surface can face the light-emitting surface of the LED chip and correspond to the light- emitting surface, and the light emitted from the LED chip can be subject to the cooperation between the light input surface and the light output surface such that the lens can have strong focusing capability and excellent focusing effect. Further, by combining this with the reflector j a light-reflecting surface facing the receiving chamber, it can further reflect the side light emitted from the LED chips and the light reflected by the lens, thereby further improving the lens' focusing capability and focusing effect and realizing the target output angle (e.g. any angle between 45 degrees and 100 degrees). Therefore, the focusing lens optical module according to the present disclosure can have strong focusing capability and excellent focusing effect, such that an LED industrial lamp installed with the focusing lens optical module according to the present disclosure can have a high overall lighting efficiency (e.g., higher than previous LED industrial lamps).

Further, the present disclosure provides an LED industrial lamp with an adjustable light-emitting angle. The LED industrial lamp can include a heat dissipater, a lamp holder connected to a top end of the heat dissipater, an LED light source unit disposed at a bottom end of the heat dissipater, and a driving power source disposed inside the lamp holder and connected electrically with the LED light source unit. The LED light source unit can include an LED module secured at the bottom end of the heat dissipater, a light shielding cup that fits over the LED module and is coaxial with the LED module, a lens disposed outside of the light shielding cup and corresponding to the LED module, and a regulation unit that movably connects the light shielding cup and the lens to the bottom end of the heat dissipater.

In some embodiments, the heat dissipater can include a base, a ring-shaped groove can be formed at a bottom of the base, a protrusion can be formed inside the ring-shaped groove, the LED module can be secured to the protrusion, and the light shielding cup and the lens can be disposed outside of the protrusion and movably connected to the bottom of the base via the regulation unit. The ring-shaped groove can be favorable for the installation of the regulation unit.

In some embodiments, the regulation unit can include an elastic member that fits over the protrusion and a locking member, one end of the elastic member can be received inside the ring-shaped groove, an if the elastic member can run against the light shielding cup, and the locking member can movably connect the light shielding cup and the lens to the bottom of the base.

In some embodiments, the light shielding cup can have a hollow cone-shaped body, a stop portion can protrude outwardly in a radial direction on an external wall of the body, a top end of the body can be slidably disposed outside of the protrusion, the elastic member can run against the stop portion, and the locking member can run through the stop portion and movably connect with the bottom of the base. The light shielding cup can improve the light utilization.

In some embodiments, the lens can have an edge formed by expanding outwardly in a radial direction, the lens can fit over a bottom end of the body, and the edge can butt against the stop portion.

In some embodiments, the LED industrial lamp can include a lens cap that fits over the lens and presses against the edge of the lens, the locking member can run through the lens cap, and the stop portion can movably connect with the bottom of the base. The lens can be held between the lens cap and the stop portion of the light shielding cup, which can facilitate the installation and regulation of the lens. In some embodiments, the lens cap can include a hollow structure, a bottom end of the lens cap can extend inwardly in a radial direction and form a snap holding portion, a through hole is formed on the snap holding portion that butts against the edge of the lens, a through hole can be formed on the snap holding portion, the lens cap can fit over the lens and the base, and the locking member can run through the through hole and movably connect with the bottom of the base. Therefore, the snap holding portion and the stop portion can hold the lens therebetween, and the locking member can run through the snap holding portion and the stop portion to movably connect with the bottom of the base. The lens and the light shielding cup can be pushed toward or away from the LED module by regulating the locking member, thereby regulating the light- emitting angle of the LED industrial lamp. me embodiments, the LED light source unit can include a sealing member that fits over the lens, one side of the sealing member can sealingly press against the edge, and an other side of the sealing member can sealingly press against the snap holding portion. The sealing member can be a circular sealing ring. The sealing ring can simplify the structure of the sealing member and improve the sealing effect.

In some embodiments, the LED light source can include a cap, and the cap can fit over the LED module and be secured to the

protrusion.

In some embodiments, the lens can be a double convex combined lens. In such embodiments, the LED industrial lamp with adjustable light- emitting angle according to the present disclosure can compress the light-emitting angle to below 100° without using a reflection shell. The LED industrial lamp with adjustable light-emitting angle according to the present disclosure can have an LED light source unit that includes an LED module, a light shielding cup, a lens, and a regulation unit. The LED module can be secured at the bottom of the heat dissipater, the light shielding cup can fit over the LED module and be coaxial with the LED module, the lens can be disposed outside of the light shielding cup and correspond to the LED module, and the regulation unit can movably connect the light shielding cup and the lens to the bottom of the heat dissipater. Accordingly, the lens can be pushed gradually toward the LED module by adjusting the regulation unit such that the light-emitting angle of the LED industrial lamp increases. On the other hand, when the lens is pushed gradually away from the LED module by adjusting the regulation unit, the light-emitting angle of the LED industrial lamp gradually decreases. According to the application scenario of the LED industrial lamp and the actual light demand, therefore, the light-emitting angle of the LED industrial lamp can be freely adjusted between 45° and 100° by adjusting the distance between the lens and the LED module, thereby improving the universality and scope of the LED industrial lamp. Further, the light-emitting angle can be compressed to below 100° without using a reflection shell.

Figures 1-4 illustrate various views of a first embodiment of a focusing lens optical module 00 according to the present disclosure. Focusing lens optical module 100 can be used to focus light emitted from an LED chip 105 of an LED industrial lamp.

As shown in Figures 1-4, focusing lens optical module 100 can include a lens 110 and a reflector bowl 120. Reflector bowl 120 and lens 10 can be disposed opposite to each other to form a receiving chamber 130 including a light-emitting surface 106 of LED chip 105. Reflector bowl 120 can include a light-reflecting surface 121 facing receiving chamber 130.

As shown in Figures 1-4, the bottom end of lens 110 can include a convex light input surface 111 that faces and corresponds to light- emitting surface 106 of LED chip 105. In some embodiments, light input surface 111 and light-emitting surface 106 of LED chip 105 can be disposed to directly face each other, and the top end of lens 110 can include a convex light output surface 112. In such embodiments, light input surface 111 and light output surface 112 can both be spherical or elliptical surfaces such that focusing lens optical module 100 can have a stronger capability to focus light emitted from LED chip 105 and achieve a better focusing effect. However, embodiments of the present disclosure are not limited to a particular type or shape of light input surface 111 and light output surface 1 2 (e.g., light input surface 111 and light output surface 112 can be curved surfaces other than spherical or elliptical).

In some embodiments, light-reflecting surface 121 can be an inverted conical surface or a parabolic surface. This can improve reflection of the side light emitted from LED chip 105 and the light reflected by lens 110, thereby improving the overall light efficiency of focusing lens optical module 100 according to the present disclosure. nable focusing lens optical module 100 to control the light output angle of the LED industrial lamp installed with focusing lens optical module 100 to change freely in a target angle range {e.g., in a range of 45 degrees to 100 degrees) in the event that the same lens 110 is used and according to the actual lighting demand, thereby improving the universality and application scope of focusing lens optical module 00, focusing lens optical module 100 can, in some embodiments, include at least two reflector bowls 120. Each of the at least two reflector bowls 120 can be disposed at a different height (e.g., the height H of each reflector bowl 120 can be different), and lens 110 can be disposable opposite the at least two reflector bowls at different heights so as to change the distance between LED chip 105 and light input surface 111.

As an example, the distance between LED chip 105 and light input surface 111 can be changed by keeping the distance between LED chip 105 and the bottom end of reflector bowl 120 constant, and when a reflector bowl 120 at a different height is used, that reflector bowl makes the distance between the LED chip 105 and the light input surface 111 change due to the different heights. In such an example, the bottom end of LED chip 105 and the bottom end of reflector bowl 120 can be disposed at the same level.

Embodiments of the present disclosure are not limited to a particular quantity of reflector bowls 120. For example, the quantity of reflector bowls can be flexibly selected by one of ordinary skill in the art.

In some embodiments, light input surface 111 and LED chip 105 can be spaced apart vertically. Such a vertical spacing can facilitate heat dissipation for LED chip 105, which can ensure LED chip 105 works in a reliable manner.

As shown in Figures 1-4, the bottom end of lens 110 can extend toward reflector bowl 120 with a support part 114 of a ring structure.

Support part 114 can be disposed outside of light input surface 111 and cooperate with reflector bowl 120 to facilitate the installation between lens 110 and reflector bowl 120. . _hown in Figures 1-4, receiving chamber 130 can run through reflector bowl 120 to facilitate the instillation of light-emitting surface 106 of LED chip 105 inside receiving chamber 130. An inner wall of receiving chamber 130 at reflector bowl 120 can form light-reflecting surface 121 to facilitate the formation of light-reflecting surface 121.

Figures 5-7 illustrate various views of a second embodiment of a focusing lens optical module 501 according to the present disclosure. Focusing lens optical module 501 can have a structure substantially analogous (e.g., identical) to the structure of focusing lens optical module 100 previously described in connection with Figures 1-4, except that focusing lens optical module 501 includes a plurality of light input surfaces 511 , which can correspond one-to-one with the quantity of LED chips 505 and be connected with fiat surfaces therebetween. In contrast, focusing lens optical module 100 previously described in connection with Figures 1-4 may include one (e.g., a single) light input surface 111 that corresponds to one (e.g., a single) LED chip 05.

In the embodiment illustrated in Figures 5-7, focusing lens optical module 501 includes three light input surfaces 511 spaced apart. The three light input surfaces 511 can be equidistantly spaced apart (e.g., along a layout of an equilateral triangle or a straight line) and connected with flat surfaces therebetween.

As shown in Figures 5-7, the three light input surfaces 511 can correspond to three LED chips 505 such that all of the LED chips 505 can simultaneously share one same lens (e.g., lens 510). Accordingly, lens 510 can integrate the light emitted from all of the LED chips 505 for output to ensure the consistency of output light type and improve the output efficiency, which can further simplify the structure of the LED industrial lamp installed with focusing lens optica! module 501 and reduce assembly processes to improve assembly efficiency. Embodiments of the present disclosure, however, are not limited to a particular number of light input surfaces 511. For example, some embodiments can include two, four, five, six, seven, eight, nine, or ten iurfaces 511 based on (e.g., determined by) the quantity of LED chips 505 to be focused (e.g., to correspond one-to-one with the quantity of LED chips 505). Further, the curvatures of light input surfaces 51 1 and light output surface 512 can be selected separately or simultaneously to attain the target light output angle.

Because the bottom end and the top end of lens 110 and 510 can correspondingly have convex light input surface 111 and 51 1 and convex light output surface 1 12 and 512, respectively, light input surface 1 1 1 and 51 1 can face light-emitting surface 106 and 506 of LED chip 105 and 505, respectively, and correspond to light-emitting surface 106 and 506, and the light emitted from LED chip 105 and 505 can be subject to the cooperation between light input surface 1 1 and 51 1 and light output surface 1 12 and 5 2, respectively, such that lens 110 and 510 can have strong focusing capability and excellent focusing effect. Further, by combining this with reflector bowl 120 and 520 having light-reflecting surface 121 and 521 , respectively, facing receiving chamber 130 and 530, respectively, it can further reflect the side light emitted from LED chip 105 and 505 and the light reflected by lens 10 and 510,

respectively, thereby further improving the lens' focusing capability and focusing effect and realizing the target output angle (e.g. any angle between 45 degrees and 100 degrees). Therefore, focusing lens optical module 100 and 501 can have strong focusing capability and excellent focusing effect, such that an LED industrial lamp installed with focusing lens optical module 100 and 501 can have a high overall lighting efficiency (e.g., higher than previous LED industrial lamps).

Figures 8-10 illustrate various views of a LED industrial lamp 802 with adjustable light-emitting angle according to the present disclosure. LED industrial lamp 802 can be, for example, a focusing industrial lamp.

As shown in Figures 8-10, LED industrial lamp 802 can include an LED light source unit 840, a heat dissipater 850, a lamp holder 860, a handle 870, and a driving power source 880. LED light source unit 840 can be disposed at a bottom end of heat dissipater 850, lamp holder 860 lected to a top end of heat dissipater 850, a top of lamp holder 860 can be disposed with handle 870 for taking up LED industrial lamp 802, and driving power source 880 can be disposed inside lamp holder 860 and connected electrically with LED light source unit 840. As shown in Figures 10-12, LED light source unit 840 can include an LED module 841 , a cap 842, a light shielding cup 844, a lens 845, a lens cap 846, a sealing member 847, and a regulation unit that includes an elastic member 843 and a locking member 848. LED light source unit 840 can adjust the distance between lens 845 and LED module 841 , thereby realizing free change of the light-emitting angle between 45° and 100° using the same lens (e.g., lens 845) to meet the requirements of different application scenarios.

As shown in Figures 10-12, heat dissipater 850 can include a base 851 , a ring-shaped groove 854 formed at a bottom of base 851 , and a protrusion 855 formed inside ring-shaped groove 854 at the bottom. Protrusion 855 can be used to install LED module 841 , and protrusion 855 can be formed with a connection hole 856 for installing cap 842. Further, an installation hole 854 can be formed on the bottom of base 851 for installing locking member 848.

When LED light source unit 840 is installed on base 851, LED module 841 can be secured to protrusion 855, cap 842 can fit over LED module 841 and be secured to protrusion 855, light shielding cup 844 can be disposed outside of LED module 841 and be coaxial with LED module 841 , lens 845 can be disposed outside of light shielding cup 844 and correspond to LED module 841 , lens cap 846 can fit over lens 845 and press against lens 845, and locking member 848 can run through lens cap 846 and light shielding cup 844 to movably connect inside installation hole 857 on base 851. Further, elastic member 843 can fit over protrusion 855, one end thereof can be received inside ring-shaped groove 854, and the other end can run against light shielding cup 844. As such, locking member 848 can be turned into installation hole 857 or exit installation hole 857 by rotating locking member 848, leading to the ie distance from lens 845 to LED module 841 so as to adjust the light-emitting angle of LED industrial lamp 802.

As shown in Figures 11-12, cap 842 can have a hollow ring structure, and connection poles 891 can protrude on cap 842. The embodiment illustrated in Figure 2 can include four connection poles 891 ; however, embodiments of present disclosure are not limited to a particular number of connection poles. Four connection holes 856 that correspond to connection poles 891 can be formed on protrusion 855, and connection holes 856 can be correspondingly disposed at the periphery of LED module 841. As such, cap 842 can fit over LED module 841 and make connection poles 891 correspondingly connect into connection holes 856 to connect the two.

As shown in Figures 12-14, light shielding cup 844 can have a hollow cone-shaped body 892, a stop portion 893 can protrude outwardly in a radial direction on an external wall of body 892, stop portion 893 can be substantially disposed in the center portion of the body 892, and a through hole 894 can be formed on stop portion 893. During installation, the top end of body 892 can be slidably disposed outside of protrusion 855 and its hollow structure can be made coaxial with LED module 841 , locking member 848 can run through through hole 894 and movably connect inside installation hole 857 on base 851. Light shielding cup 844 can improve the light utilization. Elastic member 843 can fit over protrusion 855, one end of elastic member 843 can be received inside ring-shaped groove 854, and the other end of the elastic member 843 can run against stop portion 893.

Lens 845 can have an edge 895 formed by expanding outwardly in a radial direction, and can fit over a bottom end of body 892. Lens 845 can correspond to LED module 841 such that the light emitted from LED module 841 emits through lens 845. Edge 895 may butt against stop portion 893 of light shielding cup 844.

In some embodiments, lens 845 can be a double convex combined lens. In such embodiments, LED industrial lamp 802 can ie light-emitting angle to below 00 degrees without using a reflection shell.

Lens cap 846 can have a hollow structure, a bottom end of lens cap 846 can extends inwardly in a radial direction and form a snap holding portion 896, a through hole 897 can be formed on snap holding portion 896, and through hole 897 can correspond to through hole 894. Lens cap 846 can fit over lens 845 and the bottom of base 851 , and can make snap holding portion 896 sealingly press against the edge 895 of lens 845. Lens 845 can be sealingly held between stop portion 893 of light shielding cup 844 and lens cap 846, and locking member 848 can run sequentially through through holes 897 and 894 to be connected into installation hole 857.

As such, locking member 848 can enter installation hole 854 by rotating locking member 848. In such a process, locking member 848 may push light shielding cup 844 to slide along protrusion 855, which in turn may make lens 845 move toward LED module 841. When locking member 848 is rotated such that it exits installation hole 854, light shielding cup 844 may move away from LED module 841 under the action of elastic member 843, thereby regulating the distance between LED module 841 and lens 845 to adjust the light-emitting angle.

Further, a sealing member 847 can be disposed between lens 845 and lens cap 846. Sealing member 847 can fit over lens 845, one side of sealing member 847 can sealingly press against edge 895 of lens 845, and an other side of sealing member 847 can sealingly press against snap holding portion 896 of lens cap 846. In some embodiments, sealing member 847 can be a circular sealing ring, which can simplify the structure of sealing member 847 while achieving a better sealing affect.

In some embodiments, elastic member 843 can be a pressure spring. However, embodiments of the present disclosure are not so limited. For example, elastic member 843 can be other objects with elastic restoring force. line embodiments, locking member 848 can be a screw, as will be appreciated by one of skill in the art. However, embodiments of the present disclosure are not so limited.

As shown in Figures 13-14, when the top end of body 892 of light shielding cup 844 corresponds to the end of protrusion 855, elastic member 843 is in a state with no pressure. At this moment, the light- emitting angle of LED industrial lamp 802 is at a minimum {e.g., 45°).

To adjust the light-emitting angle of LED industrial lamp 802, lens 845 and light shielding cup 844 can be gradually pushed toward LED module 841 by tightening locking member 848. In this process, elastic member 843 may be gradually compressed to the lowest point. When body 892 of light shielding cup 844 is pushed to the bottom of ring- shaped groove 854, the light-emitting angle of LED industrial lamp 802 is at a maximum (e.g., 100°), as shown in Figures 15-16. For another adjustment of the light-emitting angle of LED industrial lamp 802, locking member 848 can be loosened by turning locking member 848, and lens 845 and light shielding cup 844 may be gradually pushed away from LED module 841 under the action of elastic member 843. As a result, the light-emitting angle of LED industrial lamp 802 may gradually decrease from 100°. When elastic member 843 returns to the state with no pressure, the light-emitting angle of LED industrial lamp 802 may returns to the minimum (e.g., 45°). Hence, by adjusting locking member 848, the light-emitting angle of LED industrial lamp 802 can be freely adjusted between maximum and minimum (e.g., between 100° and 45°).

Embodiments of the present disclosure are not limited to an adjustment between 100° and 45° for the light-emitting angle of LED industrial lamp 802. For example, the light-emitting angle of LED industrial lamp 802 can be set to be adjusted within other angle ranges as needed.

As shown in Figures 10-1 1 , heat dissipater 850 can include heat dissipation fins 852, and insertion grooves 858 can be formed on the side Ϊ 851 which correspond to heat dissipation fins 852 and into which each of heat dissipation fins 852 can be inserted. Insertion grooves 858 can be, for example, rectangular grooves, and can be arranged in a radial manner along the side wall of base 851 such that heat dissipation fins 852 can be conveniently and rapidly inserted into base 851 to complete the assembly of heat dissipation fins 852 onto base 851. When the assembly is completed, heat dissipation fins 852 may surround base 851 in a radial manner, and a convection channel may be formed between any two neighboring heat dissipation fins 852. As a result, the heat generated by LED light source unit 840 may be rapidly transferred to heat dissipation fins 852 via base 851 , which may then dissipate by heat dissipation fins 852 to the external environment for heat dissipation.

Further, heat dissipater 850 can include an external ring 853.

External ring 853 can be hoop-shaped and fit over the free ends of heat dissipation fins 852 such that external ring 853 forms a chimney structure together with heat dissipation fins 852. Such a chimney structure can improve the heat dissipation speed and effect of LED industrial lamp 802. To make the connection between external ring 853 and heat dissipation fins 852 more reliable and have a better heat dissipation effect, the free ends of heat dissipation fins 852 can further include fitting connection parts 859 formed by bending toward its side, and ail fitting connection parts 859 can form a ring structure.

As shown in Figures 8-10, lamp holder 860 can be connected to the top end of base 851. Lamp holder 860 can have a hollow structure that forms a circulation channel 861 that runs through the bottom and top ends of lamp holder 860.

Driving power source 880 can be disposed inside circulation channel 861 and secured to the inner wall of circulation channel 861 , and circulation channel 861 can facilitate the dissipation of heat generated by driving power source 880 to the external environment. Further, a plurality of mutually parallel projections 862 can be formed on the outer wall of r 860, and a plurality of heat dissipation strips 863 that are spaced apart and mutually parallel can be formed on projections 862 to facilitate the dissipation of heat from driving power source 880 to the external environment. A shell 864 can be installed on the top end of lamp holder 860.

Shell 864 can cover circulation channel 861 at the top end of the lamp holder 860. Sheil 864 can be formed with a plurality of round vent holes 866 thereon, and vent holes 866 can be arranged equidistantly in the circumferential direction. The bottom end of lamp holder 860 can be disposed with a plurality of support blocks 865 distributed peripherally on lamp holder 860. The top ends of support blocks 865 can be connected to the bottom end of lamp holder 860, and the bottom end of support blocks 865 can be connected to base 851 such that circulation channel 861 at the bottom end of lamp holder 860 is configured in an open manner. Such an open configuration can allow more external air to enter at this point and then be vented from the top end of circulation channel 861 , thereby achieving a chimney effect to improve the heat dissipation of driving power source 880. LED light source unit 840 can include an LED module 841 , a light shielding cup 844, a lens 845, and a regulation unit. LED module 841 can be secured at the bottom of heat dissipater 850, light shielding cup

844 can fit over and be coaxial with LED module 841 , lens 845 can be disposed outside of light shielding cup 844 and correspond to LED module 841 , and the regulation unit can movably connect light shielding cup 844 and lens 845 to the bottom of heat dissipater 850. As such, lens

845 can be pushed gradually toward LED module 841 by adjusting the regulation unit such that the light-emitting angle of LED industrial lamp 802 gradually increases, and when lens 845 is pushed gradually away from LED module 841 by adjusting the regulation unit, the light-emitting angle of LED industrial lamp 802 gradually decreases. uch, according to the application scenario of LED industrial lamp 802 and the actual light demand, the light-emitting angle of LED industrial lamp 802 can be freely adjusted between 45° and 100° by adjusting the distance between lens 845 and LED module 841 , thereby improving the universality and application scope of LED industrial lamp 802. Further, the light-emitting angle can be compressed to below 100° without using a reflection shell.

Although specific embodiments have been illustrated and described herein, those of ordinary skill in the art will appreciate that any arrangement calculated to achieve the same techniques can be substituted for the specific embodiments shown. This disclosure is intended to cover any and all adaptations or variations of various embodiments of the disclosure.

It is to be understood that the above description has been made in an illustrative fashion, and not a restrictive one. Combination of the above embodiments, and other embodiments not specifically described herein will be apparent to those of skill in the art upon reviewing the above description.

The scope of the various embodiments of the disclosure includes any other applications in which the above structures and methods are used. Therefore, the scope of various embodiments of the disclosure should be determined with reference to the appended claims, along with the full range of equivalents to which such claims are entitled.

In the foregoing Detailed Description, various features are grouped together in example embodiments illustrated in the figures for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the embodiments of the disclosure require more features than are expressly recited in each claim.

Rather, as the following claims reflect, inventive subject matter lies in less than all features of a single disclosed embodiment. Thus, the following claims are hereby incorporated into the Detailed Description, with each claim standing on its own as a separate embodiment.