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Title:
CONNECTION ASSEMBLY
Document Type and Number:
WIPO Patent Application WO/2020/212364
Kind Code:
A1
Abstract:
The present invention relates to a connection assembly, comprising a first connector (10) and a second connector (20), wherein one of the first connector (10) and the second connector (20) is provided with at least one arm, the arm having at least one locking structure, and the other of the first connector (10) and the second connector (20) is provided with a mating locking structure; when the first connector (10) and the second connector (20) are connected together, the locking structure and the mating locking structure act jointly to connect the first connector (10) and the second connector (20) together in a fixed manner.

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Inventors:
LI DAN (CN)
Application Number:
PCT/EP2020/060488
Publication Date:
October 22, 2020
Filing Date:
April 14, 2020
Export Citation:
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Assignee:
VALEO VISION (FR)
International Classes:
H01R13/627; H01R13/639; H01R12/71
Domestic Patent References:
WO2008102544A12008-08-28
Foreign References:
EP0543604A21993-05-26
EP0929125A21999-07-14
Attorney, Agent or Firm:
KHAIRALLAH, Murielle (FR)
Download PDF:
Claims:
Claims

1. Connection assembly (1), comprising a first connector (10) and a second connector (20), characterized in that one of the first connector (10) and the second connector (20) is provided with at least one arm, the arm having at least one locking structure, and the other of the first connector (10) and the second connector (20) is provided with a mating locking structure, when the first connector (10) and the second connector (20) are connected together, the locking structure and the mating locking structure act jointly to connect the first connector (10) and the second connector (20) together in a fixed manner.

2. Connection assembly (1) according to Claim 1, characterized in that the first connector (10) has at least one first contact surface, and the second connector has at least one second contact surface, wherein the first contact surface and the second contact surface contact each other in a connected state, in order to define a fitted state.

3. Connection assembly (1) according to Claim 2, characterized in that at least one pair of the arms is provided, the arms being positioned opposite one another.

4. Connection assembly (1) according to Claim 3, characterized in that the arm is flexible, the locking structure of the arm takes the form of a fastening hole, and the mating locking structure takes the form of a protruding locking tongue, in the connected state, the arm is deflected towards the locking tongue, and the locking tongue is fastened in the fastening hole, in order to establish a locked connection.

5. Connection assembly (1) according to Claim 4, characterized in that a thinned material part (107) is provided at a transitional region between the arm and the connector provided with the arm.

6. Connection assembly (1) according to Claim 5, characterized in that the thinned material part is disposed at two sides of the arm.

7. Connection assembly (1) according to any one of Claims 1 - 6, characterized in that the arm and the mating locking structure are integrally formed with the corresponding connectors.

8. Connection assembly (1) according to Claim 7, characterized in that the arm and the mating locking structure are disposed at a periphery of the connectors.

9. Connection assembly (1) according to any one of Claims 1 - 6, characterized in that the first connector (10) is provided with at least one first conductor (103), and the second connector (20) is provided with at least one second conductor (203), wherein in the connected state of the first connector (10) and the second connector (20), a conductive connection is established between the first conductor (103) and the second conductor (203) corresponding to each other.

10. Connection assembly (1) according to Claim 9, characterized in that one of the first connector (10) and the second connector (20) forms a male connector, and the other forms a female connector, wherein at a connection side, the shape of an inside cross section of the female connector is matched to the shape of an outside cross section of the male connector.

Description:
Description

Connection assembly Technical field

The present invention relates to a connection assembly.

Background art

Various types of connection assemblies are known from the prior art; these are for example formed of two members in the form of a male connector and a female connector. In an assembled, connected state, the male connector is inserted in the female connector. In particular, in the case where the male connector and female connector are both provided with conductors, e.g. contact pins, the conductors in the male connector and female connector are in contact with each other, thereby forming an electrical connection when energized.

However, for such a connection assembly, if vibration or jolting occurs in an environment of use, this might cause the members of the connection assembly to be separated from each other. This is unacceptable, in particular where electrical connection assemblies are concerned.

Content of the invention

Thus, an object of the present invention is to provide a connection assembly capable of solving the abovementioned problem.

According to the present invention, a connection assembly is proposed, comprising a first connector and a second connector, wherein one of the first connector and the second connector is provided with at least one arm, the arm having at least one locking structure, and the other of the first connector and the second connector is provided with a mating locking structure; when the first connector and the second connector are connected together, the locking structure and the mating locking structure act jointly to connect the first connector and the second connector together in a fixed manner.

The additional locking structure and mating locking structure enable the connected state of the connectors to be maintained more effectively, to prevent accidental separation due to external effects. This increases the stability of connection without adversely increasing costs.

The first connector is provided with at least one first contact surface, and the second connector is provided with at least one second contact surface. The first and second contact surface contact each other in a connected state, in order to define a fitted state. The corresponding contact surfaces may be specifically designed according to actual circumstances, e.g. may be disposed at peripheral sides of bodies of the corresponding connectors.

According to an embodiment of the present invention, at least one pair of the arms is provided, the arms being positioned opposite one another, in order to prevent loosening of the connectors more effectively.

According to an embodiment of the present invention, the arm is flexible, the locking structure of the arm takes the form of a fastening hole, and the mating locking structure takes the form of a protruding locking tongue. In the connected state, the arm is deflected towards the locking tongue, and the locking tongue is fastened in the fastening hole, in order to establish a locked connection. When the corresponding contact surfaces of the connectors contact each other, by fastening the locking tongue in the fastening hole of the arm, the arm can be put into a tensioned state acted upon by a force, thereby ensuring the reliable connection of the connectors.

According to an embodiment of the present invention, a thinned material part is provided at a transitional region between the arm and the connector provided with the arm. The transitional region may be a region which folds during deflection of the arm. The thinned material part helps to keep the yield stress of material at this position within a permitted range, thereby extending life.

According to an embodiment of the present invention, the thinned material part is disposed at two sides of the arm.

According to an embodiment of the present invention, the arm and the mating locking structure are integrally formed with the corresponding connectors. Here, the connector may be formed by injection moulding.

According to an embodiment of the present invention, the arm and the mating locking structure are disposed at a periphery of the connectors.

According to an embodiment of the present invention, the first connector is provided with at least one first conductor, and the second connector is provided with at least one second conductor. In the connected state of the first connector and the second connector, a conductive connection is established between the first conductor and the second conductor corresponding to each other.

According to an embodiment of the present invention, one of the first connector and the second connector forms a male connector, and the other forms a female connector, wherein at a connection side, the shape of an inside cross section of the female connector is matched to the shape of an outside cross section of the male connector.

Brief description of the drawings

The present invention is expounded further below with the aid of the accompanying drawings. Here:

Fig. 1 shows schematically an exploded view of a connection assembly according to an embodiment of the present invention;

fig. 2 shows schematically an assembled view of the connection assembly in fig. 1, wherein an initial state and a fitted state of the arms are shown;

fig. 3 shows schematically a sectional view of the connection assembly along the section line A- A in fig. 2;

fig. 4 shows schematically another assembled view of the connection assembly in fig. 1 , and

fig. 5 shows schematically a view of the transitional region between the arm and the connector body. Particular embodiments

Embodiments of the present invention are explained demonstratively below. As those skilled in the art should realize, the embodiments explained may be amended in various ways without departing from the concept of the present invention. Thus, the accompanying drawings and the description are in essence demonstrative and non-limiting. In the following text, identical drawing reference labels generally indicate functionally identical or similar elements.

Fig. 1 shows schematically a connection assembly 1 according to an embodiment of the present invention. The connection assembly 1 comprises a first connector 10 and a second connector 20. These may be plugged together in the directions of the open arrows shown in fig. 1.

The first connector 10 has a first connector body 101 and arms 104 attached to the first connector body. The arms have constant thickness. Here, the first connector body 101 and the arms 104 are integrally formed. Fig. 1 shows a pair of arms 104 disposed opposite one another on the approximately square first connector body. Of course, the quantity and position of the arm(s) 104 may be set as required. The arm is flexible, and a fastening hole 105 is further constructed at an end of the arm. This will be expounded further below. The second connector 20 has a second connector body 201 and locking tongues 204 attached to the second connector body. The locking tongues 204 protrude from the second connector body 201 and, matching the arrangement of the arms 104 of the first connector, are likewise disposed opposite one another on the second connector body 201. An accommodating cavity 202 is formed in a body of the second connector body 201, and used to accommodate the first connector body 101. For this purpose, at a connection side, the shape of an outer profile cross section of the first connector body 101 is at least partially matched to the shape of an inner profile cross section of the accommodating cavity 202 in the second connector body 201, in order to ensure highly precise positioning and connection of the first connector and the second connector. Preferably, the corresponding cross section is a specially shaped surface, e.g. a square surface with one corner chamfered, this can realize error-proof connection.

The first connector 10 and second connector 20 also have at least one pair of surfaces which contact one another in a connected state, in order to define a fitted state. Here, at least one engagement piece 108 having elasticity is disposed at a peripheral outer side of the body of the first connector 10, wherein a gap 109 is present between the peripheral outer side and the engagement piece 108 of the first connector. A recess 110 is constructed at a side of the engagement piece 108, said side facing an outer wall (see fig. 3). At least one protrusion 210 is further constructed at a peripheral outer side of the second connector 20. When insertion is performed, a part of a peripheral wall of the second connector 20 may be positioned in the gap 109 between the peripheral outer side and the engagement piece 108 of the first connector, and the engagement piece 108 may deform outwards elastically until the protrusion 210 is accommodated in the recess 110; the engagement piece 108 then returns to its original position. When insertion is complete, at least one surface of the recess 110 and at least one corresponding surface of the protrusion 210 contact each other, as can be seen in the sectional view of fig. 3.

In order to guide the engagement piece 108 more effectively, a pair of guiding parts 208 is constructed at a peripheral outer side of the second connector body 201 ; the protrusion 210 is positioned in a space 209 formed by the guiding parts 208.

Of course, contact surfaces of the first connector 10 and second connector 20 may also be formed by an end face of the first connector 10 and a bottom face of the accommodating cavity 202 of the second connector 20 respectively, said end face facing the second connector 20 during insertion. When plug-in is complete, these two faces are in contact with each other.

With the first connector 10 and second connector 20 connected together, the arm 104 of the first connector 10 may be deflected towards the locking tongue 204 of the second connector 20, such that the locking tongue 204 passes through the fastening hole 105 disposed in the arm 104. Here, a bottom surface 206 of the locking tongue 204 is in contact with an edge 106 of the fastening hole 105, and a reliable, enduring connection between the two connectors is maintained under joint action with the abovementioned contact surfaces. For this purpose, the fastening hole 105 may be a locking structure, and the locking tongue 204 may be a mating locking structure. Figs. 2 and 4 show an initial state and a connected state of the arms, wherein the arms are horizontal in the initial state, and vertical in the connected state.

A thinned material part 107 is constructed at a transitional region between the arm 104 and the first connector body 101, in order to realize a flexible connection therebetween. Fig. 5 shows schematically a sectional view of the thinned material part 107. As can be seen, two depressions are constructed at the transitional region, wherein the depression at a closure outer side has a greater depth than the depression at a closure inner side, e.g. the depression at the closure outer side has a substantially semicircular cross section, and the depression at the closure inner side has a flat bottom surface, wherein the depression at the closure outer side has a radius R of 0.75 mm, the depression at the closure inner side has a length L of 1.5 mm, and the thinned material part 107 has a thickness T of 0.3 mm. Radiusing may be performed between a side face and the bottom surface of the depression at the closure inner side; the radius size is for example 0.1 mm. Through the above solution, tensile stress and strain borne by material at the closure outer side and compressive stress and strain borne by material at the inner side during closure can be kept within a range less than the yield stress of the material, and excessive stress concentration at this position can be prevented, thereby preventing cracking and effectively extending the life of a flexible connection part.

Amongst the connectors described above, the connector provided with the thinned material part 107 in particular may be formed by injection moulding of plastic, e.g. polypropylene (PP) or polyethylene (PE).

Contacts may also be provided in the first connector 10 and the second connector 20; the contacts are for example formed by conductors such as copper. It can be seen in the drawings that 8 first conductors 103 are provided in the first connector 10, each having one end inserted into a hole 102 in the first connector body 101, which end may have a tubular structure; negative contacts are thus formed. The second connector 20 has 8 second conductors 203, the shape thereof being cylindrical, square-column- shaped or flat; positive contacts are thereby formed. In a plugged-in state, the positive contact and the negative contact form a contact pair, and an electrical connection is achieved through the joining of the negative and positive contacts by insertion. Here, the first connector may be regarded as a plug, and the second connector may be regarded as a socket. It must be explained here that although the drawings show the arms as being disposed on the male connector and the locking tongues as being disposed on the female connector, and only one pair of arms and locking tongues is shown, the bodies to which the arms and locking tongues are attached may be swapped, i.e. the locking tongues may be disposed on the male connector, and the arms may be disposed on the female connector. Of course, mixed arrangements are also possible. The quantities and positions thereof may be determined according to requirements.

The present invention is not limited to the structure described above; various other variants could also be used. Although the present invention has already been described by means of a limited number of embodiments, those skilled in the art could, drawing benefit from this disclosure, design other embodiments which do not depart from the scope of protection of the present invention disclosed herein. Thus, the scope of protection of the present invention should be defined by the attached claims alone.