CN214411590U

CN214411590U - A kind of interface unit

Info

Publication number: CN214411590U
Application number: CN202022846905.4U
Authority: CN
Inventors: 李彦甲; 许连威; 赵锡麟
Original assignee: Beijing Qisheng Technology Co Ltd
Current assignee: Beijing Qisheng Technology Co Ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-10-15
Anticipated expiration: 2030-11-30

Abstract

The embodiment of the utility model provides a connector mutually supports through adopting apron and fixed plate, makes the first part of terminal lie in the axial between apron and the fixed part, makes the terminal fixed by in the axial, can avoid in the comparative example to glue fixed terminal through the point and lead to the terminal uniformity poor, the shortcoming of poor reliability and life weak point. Therefore, the embodiment of the utility model provides a can improve the performance and the life of connector.

Description

A kind of interface unit

Technical Field

The utility model relates to an electronic equipment technical field, concretely relates to connector.

Background

With the rise of new energy industries, electric vehicles are more and more widely applied. The connector is an important part of a battery of an electric vehicle, but the conventional connector has poor consistency, low production efficiency and short service life. Therefore, it is desirable to provide a high performance connector to improve the uniformity and production efficiency of the connector.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a connector, which fixes a terminal by using a cover plate to improve the uniformity and the production efficiency of the terminal.

The connector of the utility model includes:

a housing including a fixing plate and a receiving groove recessed downward from the fixing plate;

a terminal, an outer wall of the terminal including a first portion disposed within the receiving groove and a second portion disposed above the receiving groove, an outer diameter of the first portion being greater than an outer diameter of the second portion;

and the cover plate is arranged on the fixing plate, is fixedly connected with the fixing plate and comprises a positioning hole corresponding to the second part, and the lower end surface of the cover plate is pressed against the upper end surface of the first part.

Preferably, the connector further comprises:

and the sealing ring is sleeved on the first part and seals a gap between the accommodating groove and the first part.

Preferably, the outer wall of the first part comprises an annular groove, the sealing ring being fitted in the annular groove.

Preferably, the fixing plate is provided with a screw hole, the cover plate is provided with a first through hole corresponding to the screw hole, and the cover plate is fixedly connected with the shell through a screw.

Preferably, the fixation plate comprises a first locating formation;

the cover plate comprises a second positioning structure corresponding to the first positioning structure.

Preferably, the first positioning structure is a positioning protrusion, and the second positioning structure is a positioning groove.

Preferably, the housing includes a protection part surrounding the fixing plate.

Preferably, the terminal is a male terminal or a female terminal.

Preferably, the bottom of the receiving groove includes a second through hole corresponding to the terminal.

Preferably, the terminal is a male terminal, and the terminal further includes a PIN penetrating through the second through hole.

Preferably, the connector includes a plurality of terminals, each of which is the same size or different sizes.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

fig. 1 is a schematic view of a connector of a comparative example;

fig. 2 is a sectional view of a connector of a comparative example;

fig. 3 is a front view of a female end connector of an embodiment of the invention;

FIG. 4 is a cross-sectional view taken along line AA of FIG. 3;

fig. 5 is an exploded view of a female end connector of an embodiment of the present invention;

fig. 6 is a schematic view of a terminal of a female end connector of an embodiment of the invention;

fig. 7 is a schematic diagram of a male end connector of an embodiment of the invention;

fig. 8 is a cross-sectional view of a male end connector and a female end connector mating in accordance with an embodiment of the present invention.

Description of reference numerals:

10A shell; a 20A terminal; 10a shell; 11 fixing the plate; 12, accommodating grooves; 13 a second through hole; 14 a protection part; 15 screw holes; 16 a first locating feature; 20 terminals; 21 a first portion; 22 a second portion; 23 an annular groove; 24 crown springs; 25PIN needles; 30 cover plates; 31 a first through hole; 32 positioning holes; 33 a second positioning structure; 40, sealing rings; 50 screws; 10b a housing; 11b fixing the plate; 12b accommodating grooves; 20b terminals; 21b a first portion; 22b a second portion; 24b a third portion; 30b a cover plate; 30 b' lower end face; 32b positioning holes; 40b sealing ring.

Detailed Description

The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth in detail. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.

Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

Unless the context clearly requires otherwise, throughout this application, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".

In the description of the embodiments of the present invention, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are intended to be inclusive and mean that, for example, they may be fixedly connected or detachably connected or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

When an element or layer is referred to as being "on," "engaged to," "connected to" or "coupled to" another element or layer, it may be directly on, engaged, connected or coupled to the other element or layer or intervening elements or layers may be present. In contrast, when an element is referred to as being "directly on," "directly engaged to," "directly connected to" or "directly coupled to" another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship between elements should be interpreted in a similar manner. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Spatially relative terms, such as "inner," "outer," "below," "lower," "above," "upper," and the like, are used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below" can encompass both an orientation of above and below. The device may be otherwise oriented and the spatially relative descriptors used herein interpreted accordingly.

Fig. 1 is a schematic view of a connector of a comparative example. Fig. 2 is a cross-sectional view along line AA of fig. 1. As shown in fig. 1 and 2, the connector includes only a housing 10A and terminals 20A, and the terminals 20A are fixed and sealed in the housing 10A by a dispensing process. The consistency of the dispensing process is poor, the production efficiency is low, and when the discharge current of the battery is large and the connector generates high temperature, the glue is easy to lose efficacy, so that the terminal 20A of the connector is moved and even ejected. Meanwhile, when the male and female ends of the connector are mated, the terminal 20A is easily subjected to large eccentric stress due to poor precision of the mating position, and the service life is affected.

Fig. 3 is a front view of a female end connector according to an embodiment of the present invention. Fig. 4 is a cross-sectional view along line AA of fig. 3. Fig. 5 is an exploded view of a female end connector according to an embodiment of the present invention. As shown in fig. 3-5, the female end connector includes: housing 10, terminal 20, seal ring 40, and cover plate 30.

The housing 10 includes a fixing plate 11 and a protector 14. The housing 10 includes a protector 14 surrounding the outer edge of the fixing plate 11. In the present embodiment, the side surface of the protecting portion 14 and the fixing portion are disposed substantially vertically. The protection part 14 can be regarded as a cylindrical structure with both ends open, the fixing plate 11 and the terminal 20 are disposed in the cylindrical structure, and the protection part 14 can protect the terminal 20 and the fixing plate 11 disposed therein.

The fixing plate 11 is provided with a receiving groove 12 recessed downward. The bottom of the receiving groove 12 includes a second through hole 13. The shape and size of the receiving groove 12 and the shape and size of the terminal 20 are fitted to each other. In the present embodiment, the cross section of the accommodation groove 12 is circular. The dimension of the receiving groove 12 in the axial direction is equal to the dimension of the first portion 21 in the axial direction, and the inner diameter of the receiving groove 12 is larger than the inner diameter of the first portion 21.

Fig. 6 is a schematic view of a terminal of a female terminal connector according to an embodiment of the present invention. As shown in fig. 3 to 6, the terminal 20 is disposed in the receiving groove 12, and the outer wall of the terminal 20 includes a first portion 21 disposed inside the receiving groove 12 and a second portion 22 disposed above the receiving groove 12, and the first portion 21 has an outer diameter larger than that of the second portion 22. The terminal 20 is shaped like a stepped shaft, and the first portion 21 and the second portion 22 are coaxial. The terminal 20 may be a male terminal or a female terminal. In this embodiment, when the terminal 20 is a female terminal, the outer wall includes a crown spring 24. The opening direction of the terminal 20 corresponds to the second through hole 13 at the bottom of the receiving groove 12.

In the present embodiment, the connector includes a plurality of terminals 20, and the terminals 20 are the same or different in size.

The seal ring 40 is fitted over the first portion 21 and seals a gap between the receiving groove 12 and the first portion 21. Specifically, the outer wall of the first portion 21 includes an annular groove 23, and the sealing ring 40 is fitted in the annular groove 23.

In the present embodiment, the seal ring 40 functions to seal the gap between the terminal 20 and the housing 10, and can ensure the sealing performance of the connector.

It should be understood that in the present embodiment, one sealing ring 40 is provided around the terminal 20 for example, but in other embodiments, two or more sealing rings 40 may be provided around the terminal 20 for increasing the sealing effect.

The cover plate 30 is disposed on the fixing plate 11, is fixedly connected to the fixing plate 11, and includes a positioning hole 32 corresponding to the second portion 22, and a lower end surface of the cover plate 30 presses an upper end surface of the first portion 21.

The fixing plate 11 is provided with a screw hole 15, the cover plate 30 is provided with a first through hole 31 corresponding to the screw hole 15, and the cover plate 30 and the housing 10 are fixedly connected through a screw 50. In the present embodiment, the screw holes 15 are provided at the edge of the fixing plate 11. The bottom surface of the cover plate 30 and the upper surface of the fixing plate 11 are tightly coupled by the screws 50, so that the coupling stability can be improved.

In the embodiment of the present invention, the inner diameter of the positioning hole 32 of the cover plate 30 is substantially the same as the outer diameter of the second portion 22, and is smaller than the outer diameter of the first portion 21. Meanwhile, the distance from the lower surface of the cover plate 30 to the bottom of the receiving groove 12 is equal to the dimension of the first portion 21 in the axial direction. Therefore, after the cover plate 30 is fixedly attached to the fixing plate 11, the cover plate 30 around the positioning hole 32 is pressed against the upper end surface of the first portion 21, so that the terminal 20 is fixed in the axial direction.

In the embodiment, the cover plate 30 includes the lightening holes 34, which can lighten the weight of the cover plate 30, reduce the material used for the cover plate 30, and reduce the cost of the cover plate 30.

The fixation plate 11 comprises a first positioning structure 16; the cover plate 30 includes a second locating feature 33 corresponding to the first locating feature 16.

In this embodiment, the first positioning structure 16 is a positioning protrusion, and the second positioning structure 33 is a positioning groove. In this embodiment, the first positioning structure 16 and the second positioning structure 33 are circular protrusions and ribs connected with the circular protrusions, and the shapes of the first positioning structure 16 and the second positioning structure 33 can be adaptively adjusted according to needs.

The first and second locating structures 16 and 33 cooperate with each other to fix the relative positions of the fixing plate 11 and the cover plate 30. The position where the cover plate 30 is placed can be quickly determined, and the assembly efficiency is improved.

The embodiment of the utility model provides a mutually support fixed terminal 20 in the axial through adopting apron 30 and fixed plate 11. While sealing the gap between the housing 10 and the terminal 20 in the horizontal direction using the sealing ring 40. The sealing ring 40 may be made of rubber or silica gel having a certain elasticity. The sealing ring 40 is sealed, and the sealing ring 40 can have certain deformation in the horizontal direction, can give terminal 20 and have certain buffering space in the horizontal direction, and when public end and female end cooperation precision were not good, the buffering space can reduce eccentric stress, can improve terminal 20's life.

In this embodiment, a specific structure of the connector is described with reference to a female connector. In another embodiment of the present invention, as shown in fig. 7 and 8, a specific structure of the connector is described by taking a male end connector as an example. The connector includes: a housing 10b, a terminal 20b, a seal ring 40b, and a cover plate 30 b.

The housing 10b includes a fixing plate 11b and a receiving groove 12b recessed downward from the fixing plate 11 b.

And a terminal 20b, wherein the outer wall of the terminal 20b includes a first portion 21b disposed in the receiving groove 12b and a second portion 22b disposed above the receiving groove 12b, and the first portion 21b has an outer diameter larger than that of the second portion 22 b. The accommodating groove 12b includes a second through hole therein. In the present embodiment, the terminal 20b is a male terminal, the terminal 20b includes a PIN 25, in the present embodiment, an outer wall of the terminal 20b is an outer wall of the PIN 25, and the PIN 25 includes a first portion 21b disposed in the receiving groove, a second portion 22b connected to a first end of the first portion 21b, and a third portion 24b connected to a second end of the first portion. Wherein the second part 22b passes through the positioning hole 32b of the cover plate 30b, and the first part 21b passes through the second through hole at the bottom of the receiving groove.

The cover plate 30b is disposed on the fixing plate 11b, is fixedly connected to the fixing plate 11b, and includes a positioning hole 32b corresponding to the second portion 22b, and a lower end surface 30 b' of the cover plate 30b presses an upper end surface of the first portion 21 b. Specifically, the structure of the cover plate can refer to the cover plate in the female connector shown in fig. 5, and is not described in detail here. The terms "upper" and "lower" in this embodiment are relative, and "upper" and "lower" may be interchanged after the connector is turned upside down.

The seal ring 40b is fitted over the first portion 21b and seals a gap between the receiving groove 12b and the first portion 21 b. The outer wall of the first portion 21b includes an annular groove 23b, and the sealing ring 40b is fitted in the annular groove 23 b.

The fixing plate 11b is provided with a screw hole (not shown), the cover plate 30b is provided with a first through hole (not shown) corresponding to the screw hole, and the cover plate 30b and the housing 10b are fixedly connected by a screw (not shown). Wherein, the screw hole, the first through hole and the screw can refer to the female end connector.

Fig. 8 is a cross-sectional view of a male end connector and a female end connector mating in accordance with an embodiment of the present invention. The positions of the terminals in the male and female connector correspond to each other and in the use condition the PIN 25 of the male connector mates with the crown spring 24 in the female connector.

It will be appreciated that the interfitting male and female end connectors shown in figure 8 both employ a cover plate to secure the terminals. In other alternative implementations, the mating male and female connectors may be fixed to the terminal only by the female connector using the cover plate, and the terminal of the male connector is fixed to the housing in other manners; the terminal can also be fixed by only adopting the cover plate at the male end, and the terminal at the female end is fixed in the shell in other modes.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A connector, characterized in that the connector comprises:

a housing (10) including a fixed plate (11) and a housing groove (12) recessed downward from the fixed plate (11);

a terminal (20), an outer wall of the terminal (20) including a first portion (21) disposed within the receiving groove (12) and a second portion (22) disposed above the receiving groove (12), an outer diameter of the first portion (21) being larger than an outer diameter of the second portion (22);

and the cover plate (30) is arranged on the fixing plate (11), is fixedly connected with the fixing plate (11), comprises a positioning hole (32) corresponding to the second part (22), and the lower end surface of the cover plate (30) is pressed against the upper end surface of the first part (21).

2. The connector of claim 1, further comprising:

and the sealing ring (40) is sleeved on the first part (21) and seals a gap between the accommodating groove (12) and the first part (21).

3. A connector according to claim 2, wherein the outer wall of the first part (21) comprises an annular groove (23), the sealing ring (40) being fitted in the annular groove (23).

4. Connector according to claim 1, characterized in that the fixing plate (11) is provided with a screw hole (15), the cover plate (30) is provided with a first through hole (31) corresponding to the screw hole (15), and the cover plate (30) and the housing (10) are fixedly connected by a screw (50).

5. Connector according to claim 1, characterized in that the fixing plate (11) comprises a first positioning structure (16);

the cover plate (30) comprises a second positioning structure (33) corresponding to the first positioning structure (16).

6. A connector according to claim 5, wherein the first locating formation (16) is a locating projection and the second locating formation (33) is a locating groove.

7. Connector according to claim 1, characterized in that the housing (10) comprises a protective portion (14) surrounding the fixing plate (11).

8. Connector according to claim 1, characterized in that the terminal (20) is a male terminal (20) or a female terminal (20).

9. Connector according to claim 1, characterized in that the bottom of the receiving groove (12) comprises a second through hole (13) corresponding to the terminal (20).

10. Connector according to claim 9, characterized in that the terminal (20) is a male terminal (20), the terminal (20) further comprising a PIN (25) passing through the second through hole (13).

11. Connector according to claim 1, characterized in that it comprises a plurality of terminals (20), each terminal (20) being of the same or different size.