LIQUID IMPERMEABLE SWITCH CHAIN/HARNESS WITH CABLE

FIELD OF THE INVENTION

The product of the present invention relates to a liquid impermeable switch chain/harness with cable which is developed to prevent leakage of liquid into the trigger mechanism in the inner structure of the gas valves.

BACKGROUND OF THE INVENTION

The utility model application numbered TR2015/05131 and titled“Innovation in ignition switches” relates to innovation in ignition switches which are mounted on the gas valve in gas furnaces and which provide automatic ignition when the gas is turned on.

The said invention, which is the closest document to the product of the present invention in the prior art, relates to an ignition switch that allows ignition to be achieved when the gas is turned on.

When cleaning the ignition switch having top fitting structure, which is mounted on the gas valve of the gas-fired ovens; contact of the soapsuds, oil and similar waste and undesired liquids leaking through the openings at the sides of the body and the working edges of the trigger causes the switch to fail.

The ignition switch of the said invention in the prior art has a spring system in the upper body which goes out of the body through an opening, and this causes oils, soapsuds, etc. to enter into the switch and contact the ignition, and results in short circuit causing the switch to fail.

DEFINITION OF THE INVENTION

The present invention relates to a liquid impermeable switch chain/harness with cable developed to eliminate the above mentioned disadvantages and bring new advantages to the concerned technical field. The product of the invention is to change the contact structure of the gas valves used in stoves, hobs, cookers and ovens. The inner part of the existing contact structures is quite unprotected, and when liquid leaks into the contact, oxidation occurs upon contact of the copper switch with liquid. Technical innovations have been made as described below to prevent this oxidation.

The objective of the present invention is to ensure that the liquid-impermeable switch chain/harness with cable of the gas valve provides sealing to the area where the switch is located to prevent corrosion of the switch due to liquid contact.

Another objective of the invention is to design the trigger and the lower trigger in the form of a telescopic system to prevent passage of liquid through the upper body.

A further objective of the invention is to prevent the liquid flow that might come from the upper body to flow down through the right and left parts of the trigger and reach the switch.

Another objective of the invention is to remove the lower body connection lug slots provided on the upper body from inside of the upper body and to place them on the outer side, and thus to protect the switch from the liquid flow passing through the lug slots provided on the upper body.

A further objective of the invention is to prevent the flow of liquid through the cable channels by moving the cable channels located on the large switch terminal to the lowest possible part.

Another objective of the invention is to ensure sealing by forming a self-seal structure upon passing the cable through the slot by narrowing the width of the cable channels on the large switch terminal and using silicone material. Figures

The embodiments of the present invention, briefly summarized above and discussed in greater detail below, can be understood by reference to the exemplary embodiments of the invention described in the accompanying drawings. However, it should be noted that the accompanying drawings only illustrate typical embodiments of the present invention and that therefore they shall not be considered to limit the scope of the invention since the invention allows other equally effective applications.

Figure 1 shows front, left side and perspective views of the lower body.

Figure 2 shows front, left side and perspective views of the lower body to which the switch terminal is mounted.

Figure 3 shows front, left side and perspective views of the trigger lower mechanism. Figure 4 shows front, left side and perspective views of the trigger.

Figure 5 shows front, left side and perspective views of the plastic ring.

Figure 6 shows front, left side and perspective views of the upper body.

Figure 7 shows front, left side and perspective views of the upper body.

Figure 8 shows a section line of the liquid impermeable switch chain/harness with cable. Figure 9 shows a C-C section perspective view of the liquid impermeable switch chain/harness with cable.

Figure 10 shows a C-C section left side view of the liquid impermeable switch chain/harness with cable.

Figure 11 shows a C-C section and perspective view of the liquid impermeable switch chain/harness with cable when the mounted trigger is in depressed position.

Figure 12 shows a C-C section and perspective view of the liquid impermeable switch chain/harness with cable when the mounted trigger is in released position.

Figure 13 shows side view of the liquid impermeable switch chain/hamess with cable in mounted state.

Figure 14 shows perspective view of the liquid impermeable switch chain/hamess with cable in mounted state.

Figure 15 shows side and perspective view of the liquid impermeable switch chain/hamess with cable in mounted state.

Figure 16 is a view of the switch in the state of the art. In order to facilitate understanding, identical reference numbers are used where possible, to identify identical components common in the figures. The figures are not drawn to scale and can be simplified for clarity. It is considered that the components and features of an embodiment may be usefully incorporated into other embodiments without need for further explanation.

Description of the Details in the Figures

DETAILED DESCRIPTION OF THE INVENTION

In this detailed description, preferred alternative embodiments of the inventive liquid impermeable switch chain/hamess with cable are described only for better understanding of the subject and in such a manner that it will not produce any limiting effect.

10- Small switch spring

20- Switch

30- Trigger lower mechanism

31- Switch housing

32- Shaft spline

33- Upper trigger engagement channel

40- Large switch spring

50- Switch terminal

51. Cable channel

52- Large switch terminal

60- Lower body

61- Lower body lug

62- Lower body cable channel

63- Large switch spring housing

70- Trigger

71- Crescent trigger

72- Trigger lug

73- Trigger stepped neck

74- Lower trigger engagement housing

80 - Upper body

81- Cable channel 82- Valve lock

83- Upper body neck

84- Trigger channel

85- Lower body lug slot

86- Trigger clearance

90- Plastic ring

100- Valve mounted view

701- Trigger in the state of the art

801- Body in the state of the art

A- Trigger mechanism body connection detail

B- Body surface in the state of the art

C- Trigger body mounting in the state of the art

The small switch spring (10) is a support piece which is disposed on the switch (20) to support up and down movement of the trigger (70).

The switch (20) is the part that completes the ignition system and performs the ignition. The trigger lower mechanism (30) is a piece, which includes a shaft spline (32), switch housing (31), and upper trigger engagement channel (33), and complements the trigger (70) mechanism.

The large switch spring (40) is a complementary part of the ignition mechanism and it is supports up and down movement of the trigger (70).

The contact terminal (50) is a part; which includes electricity connection thereon; connects the trigger (70) mechanism with the large switch spring (40), trigger lower mechanism (30), switch (20) and the small switch spring (10); and complements the ignition system. The cable channel (51) is a structure which is located on the switch terminal (50) and allows the cables to pass through it and be squeezed to prevent liquid flow into the mechanism.

Large switch terminal (52)

The lower body (60) is the structure that carries the system thereon.

The lower body lug (61) is an outward protrusion which is located on the lower part of the lower body side surfaces and which enables to mount and lock the lower body (60) on the upper body (80). The lower body cable channel (62) is the clearance provided for the cable connection of electricity to the switch terminal (50).

The large switch spring housing (63) is a channel which is located in the inner part of the lower body (60) and into which the large switch spring (40) is disposed.

The trigger (70) is a part which actuates the ignition mechanism from outside and can move up and down to enable all the ignition members inside to interact with each other and to be deactivated. When it is connected with the trigger lower mechanism, it becomes a part which prevents leakage of liquid to the inner part of the liquid impermeable switch chain/harness with cable and which, at the same time, can clean the food residues that may accumulate at the right and left of the trigger by means of the lugs provided on the right and left surfaces thereof. The crescent trigger (71) is in the form of a crescent around the gas valve shaft and it is not mounted to the gas valve shaft.

The trigger lug (72) is the part which fits into the channel on the upper body (80) and which both cleans the food residues and limits operation of the trigger in a certain range. The crescent trigger (71) is the part which limits downward movement of the plastic ring (90) and which provides movement to the trigger when it reaches the limit.

Trigger stepped neck (73),

The lower trigger engagement housing (74) is the part which, upon being connected with the upper trigger engagement channel (33), prevents leakage of liquid into the body from the top. This integrated structure passes the liquid flow coming from the top part around itself to prevent it from reaching the switch (20), switch terminal (50) and small and large switch springs (10, 40).

The upper body (80) is the piece which protects the structure in itself and forms the outer part of the structure upon being connected with the lower body (60).

The cable channel (81) is a cavity-shaped structure which is located on the side surfaces of the upper body (80), allows the passage of the cables and has the maximum height to prevent liquid passage into the structure through the said parts.

The valve lock (82) is a part of the upper body (80), and it is the piece that enables the liquid impermeable switch chain/hamess with cable to be mounted to the valve shaft.

The upper body neck (83) is the part through which the gas valve shaft passes.

The trigger channel (84) is a channel through which the trigger (70) passes and which extends downward from the upper body Lower body lug slot (85) is a structure; to which the lower body lug (61) is inserted and which connects the lower and upper bodes to each other; and which is designed in the form of a protrusion on the side surface of the upper body (80) and does not have any opening in the rear part thereof that enables access to the inner structure.

The plastic ring (90) is used to limit the movement of the gas valve shaft.

As seen in FIG. 15, in another embodiment of the invention, when a downward movement is provided to the gas valve shaft, the trigger (70) moves downwards pushing the small switch spring (10) downwards by means of the shaft spline (32) and upon contacting the switch (20), provides the necessary ignition for the system.

In another embodiment of the invention, when the force acting on the trigger (70) is released, the large switch spring (40) pushes back the force accumulated thereon whereby enabling the trigger (70) to be lifted from the switch (20) and thus the ignition stops.

As seen in Figure 15, the plastic ring (90) is mounted to the gas valve shaft and the crescent trigger (71) provided on the trigger (70) is not mounted to the gas valve shaft and surrounds the gas valve shaft in the form of a crescent. The trigger (70) receives its downward movement from the plastic ring (90).

In the state of the art shown with detail C in Figure 16, the surrounding of the trigger (70) is open and the liquids flowing from the upper part directly contact the switch. In the product of the present invention, the lower trigger engagement housing (74) at the lower part of the trigger (70) passes through the trigger clearance (86) of the trigger lower mechanism (30) located on the upper body (80) and fits over the shaft spline (32) and thus the liquids coming from the upper body (80) are prevented from reaching the switch (20). The liquids, which are prevented from reaching the switch, move around the lower body engagement housing (74) and flow downwards.

The lug channels and the cable channels located on the side walls of the body in the state of the art shown with detail B in Figure 16, allow passage of the liquids into the switch. This problem is addressed in the present invention by positioning the lower body engagement housing (85) at the outside of the lower body (60) such that a gap is not formed on the inner surface, and thus contact of the liquid with the switch (20) is prevented.

In another embodiment of the invention, the cable channel (81) located on the side surfaces of the upper body (80) is lowered, and additionally, the lower body cable channel (62) in the lower body (60) is raised so that entry of liquid through this part into the liquid impermeable switch chain/harness with cable is prevented.

In a further embodiment of the invention, the cable channel (51) located on the switch terminal is narrowed down; and by producing this product from a soft material, a natural o-ring system is formed by fitting the cable into the cable channel (51), and thus an extra barrier which prevents liquid flow into the structure is formed.

In another embodiment of the invention, the lower trigger engagement housing (74) located at the lower part of the trigger (70) cleans the food residues accumulated on the sides of the upper body (80) by moving within the channel provided on the upper body.

In one embodiment of the present invention, the switch terminal (50) produced in compliance with the channels in the lower body (60) is placed into the lower body (60). Then, the large switch spring (40) is inserted into the inner part of the switch terminal (50) and into the large switch spring housing (63) located on the lower body (60). The lower portion of the switch housing (31) of the trigger lower mechanism (30) is disposed such that it is placed over the large switch spring (40). The switch (20) is placed in the upper part of the switch housing (31) of the trigger lower mechanism (30). On the upper part of the switch (20), the small switch spring (10) is mounted on which the upper body (80) is mounted. The lower body lug (61) is attached to the lower body lug slot (85), which is located on the upper body (80) and which is useful for locking the lower body (60), and hence the mechanism is locked and fixed. After passing through the trigger clearance (86) on the upper body (80), the trigger channel (84) on the trigger (70) is engaged to the shaft spline (32) and thus entire assembly of the system is completed and it is made ready for being mounted to the gas valve. In addition to the invention, there is provided one plastic ring (90) attached to the gas valve shaft and this plastic ring (90) is used to provide movement to the trigger (70) upon receiving the downward movement of the gas valve shaft with the crescent trigger (71).

The plastic ring (90) mounted to the gas valve shaft rotates with a movement equivalent to the right and left movement of the gas valve shaft to turn on the gas. Regardless of the direction and amount of this rotation angle, the plastic ring (90) provides an uninterrupted contact on the downward movement of the crescent trigger (71) and gas valve shaft.

In another embodiment of the invention, it is ensured that the water flows from the outside of the trigger engagement housing upon preventing entry of the water into the switch by means of a trigger engagement housing which is fitted over the part of the switch shaft that protrudes from the body; which switch shaft enables switching by its downward movement and is supported by two springs.