CN219892547U

CN219892547U - Electric connector with CPA structure

Info

Publication number: CN219892547U
Application number: CN202321295291.2U
Authority: CN
Inventors: 王超
Original assignee: Changchun Jetty Automotive Parts Co Ltd
Current assignee: Changchun Jetty Automotive Parts Co Ltd
Priority date: 2023-05-26
Filing date: 2023-05-26
Publication date: 2023-10-24
Anticipated expiration: 2033-05-26

Abstract

The utility model discloses an electric connector with a CPA structure, which comprises a CPA component, a plug sheath and a socket sheath matched with the plug sheath, wherein the CPA component is lapped on the outer side of a primary locking mechanism consisting of a clamping arm and a locking protrusion and can slide relatively relative to the upper end surface of the clamping arm, and the CPA component is provided with a first locking position and a second locking position in the sliding process; when the CPA component is positioned at the second locking position, the head of the CPA component is accommodated in the locking cavity so as to limit the free end of the clamping arm to tilt and separate from the locking protrusion, and compared with the CPA structure of the existing connector, the CPA connector has the advantages of simple structure, low manufacturing cost and the like; moreover, when the CPA component is unlocked, the unlocking of the primary locking mechanism can be realized by only sliding the CPA component from the second locking position to the first locking position, and the unlocking mode is simple and reliable.

Description

Electric connector with CPA structure

Technical Field

The present utility model relates to the field of connectors, and more particularly, to an electrical connector with CPA structure.

Background

With the rapid development of modern technology, the connector is used as an important part of the power system interconnection of the automobile, and the safety and reliability of the automobile in the running process are concerned; CPA (Connector Position Assurance) is a position ensuring structure for ensuring that a primary locking mechanism of a male end and a female end of a connector cannot easily withdraw after being locked, and has become an indispensable part of ensuring the safety of the connector, however, in order to ensure the stability of the connector after connection, the CPA structure of the existing connector is often designed to be complex, is easy to damage during repeated plugging and unplugging, has high manufacturing cost, and can cause the male end and the female end of the connector to be difficult to detach.

Disclosure of Invention

Accordingly, an objective of the present utility model is to provide an electrical connector with a CPA structure, so as to solve the technical problems mentioned in the background art.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides an electric connector with CPA structure, includes CPA subassembly, plug sheath and with plug sheath assorted socket sheath, plug sheath is provided with the locking arch in the one end that cooperatees with the socket sheath, is provided with the joint arm on the socket sheath, the free end of joint arm seted up with locking protruding matched with joint groove, CPA subassembly overlap joint in the up end of joint arm and can slide relatively for the up end of joint arm to in the gliding in-process has first locking position and second locking position; the top of socket sheath is provided with the crossbeam structure, form between crossbeam structure and the socket sheath and be used for acceping the locking chamber of CPA subassembly, when the CPA subassembly is in the second locking position, the head of CPA subassembly acceptd in the inside of locking chamber and press and establish directly over the locking arch to the free end perk of restriction joint arm breaks away from with the locking arch.

In a preferred embodiment, the clamping arm is a cantilever structure with one end connected to the socket sheath and the other end extending along the direction that the plug sheath exits the socket sheath.

In a preferred embodiment, the clamping arm is provided with a guide groove in a penetrating manner along the extending direction of one end connected with the socket sheath, the lower end face of the CPA assembly is provided with a locking block matched with the guide groove in shape, the inner wall of the guide groove is provided with a preassembly part and a locking part at intervals along the setting direction of the guide groove, and the side wall of the locking block is provided with a positioning part matched with the preassembly part and the locking part.

In a preferred embodiment, the preassembly part and the locking part are protruding points protruding from the inner wall of the guide groove, and the positioning part is a groove matching with the protruding points.

In a preferred embodiment, a stop boss is provided at the top of the socket housing at the entrance of the guide slot for preventing the CPA assembly from falling off.

In a preferred embodiment, the CPA member is formed with grooves on both side walls in the sliding direction thereof for clamping it to the clamping arms.

In a preferred embodiment, the snap arms are recessed inwardly in the region that mates with the groove of the CPA assembly to form a slideway that mates with the groove.

In a preferred embodiment, the upper end surface of the CPA assembly has a slip resistant feature.

In a preferred embodiment, the locking projection has a chamfer thereon for guiding it into the snap-in groove.

In a preferred embodiment, the top of the socket sheath is further formed with a wall blocking structure on two sides of the insertion path of the CPA assembly, and the wall blocking structure, the beam structure and the socket sheath are integrally formed.

Compared with the prior art, the utility model has the beneficial effects that: the CPA component is lapped on the outer side of a primary locking mechanism consisting of a clamping arm and a locking protrusion and can slide relatively relative to the upper end surface of the clamping arm, and the CPA component is provided with a first locking position and a second locking position in the sliding process; when the CPA component is positioned at the second locking position, the head of the CPA component is accommodated in the locking cavity so as to limit the free end of the clamping arm to be separated from the locking protrusion after tilting, and compared with the CPA structure of the existing connector, the CPA connector has the advantages of simple structure, low manufacturing cost and the like; meanwhile, when the CPA component is unlocked, the unlocking of the primary locking mechanism can be realized by only sliding the CPA component from the second locking position to the first locking position, and the unlocking mode is simple and reliable; and when the CPA component is in the first locking position, the end part of the CPA component extends to the outside of the electric connector, which is equivalent to the length of the clamping arm, increases the pressing moment and is beneficial to separating the clamping arm and the locking protrusion in the primary locking mechanism.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.

Fig. 1 is a schematic structural diagram of an electrical connector with a CPA structure according to the present utility model;

FIG. 2 is a schematic view of a plug boot of the electrical connector of FIG. 1;

FIG. 3 is a schematic view of a receptacle sheath of the electrical connector of FIG. 1;

FIG. 4 is a schematic view of the receptacle sheath of FIG. 3 at another angle;

FIG. 5 is a schematic view of the CPA assembly of the electrical connector of FIG. 1;

FIG. 6 is a cross-sectional view of the electrical connector of FIG. 1 with the CPA assembly in a second latched position;

fig. 7 is a cross-sectional view of the electrical connector of fig. 1 with the CPA assembly in a first locked position.

The figures are marked as follows:

10. a plug sheath; 101. a plug-in part; 102. a locking protrusion; 103. chamfering;

20. a socket sheath; 201. a plug cavity; 202. a clamping arm; 203. a clamping groove; 204. a beam structure; 205. a locking cavity; 206. a guide groove; 207. a preassembling part; 208. a locking part; 209. a stop boss; 210. a slideway; 211. a wall blocking structure;

30. a CPA assembly; 301. a groove; 302. a locking block; 303. a positioning part; 304. anti-slip features.

Detailed Description

Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise.

The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.

1-4, an electrical connector with CPA structure, as shown in FIG. 1-4, including CPA subassembly 30, plug sheath 10 and with plug sheath 10 assorted socket sheath 20, plug sheath 10 is provided with grafting portion 101 in the one end that cooperatees with socket sheath 20, and be provided with locking protrusion 102 on grafting portion 101, the inside of socket sheath 20 is provided with the grafting chamber 201 that is used for the grafting portion 101 of plug sheath 10 to insert, peg graft through grafting portion 101 between plug sheath 10 and the socket sheath 20, be provided with joint arm 202 on the socket sheath 20, joint arm 202 is the cantilever structure that one end is connected to socket sheath 20, the other end extends along the direction that plug sheath 10 withdraws from socket sheath 20 and forms, joint groove 203 that cooperatees with locking protrusion 102 is seted up to the free end of joint arm 202, locking protrusion 102 gets into in the joint groove 203 after plug sheath 10 and socket sheath 20 are inserted, realize the primary lock of connector male and female end, here, in order to be convenient for locking protrusion 102 gets into in the joint groove 203 smoothly, be provided with chamfer 103 on locking protrusion 102.

The CPA assembly 30 is lapped on the upper end surface of the clamping arm 202 and can slide relatively to the upper end surface of the clamping arm 202, and has a first locking position and a second locking position in the sliding process; the top of the socket sheath 20 is provided with a beam structure 204, a locking cavity 205 for accommodating the CPA assembly 30 is formed between the beam structure 204 and the socket sheath 20, and when the CPA assembly 30 is at the second locking position, the head of the CPA assembly 30 is accommodated in the locking cavity 205, so as to limit the free ends of the clamping arms 202 to tilt and separate from the locking protrusions 102. Compared with the CPA structure of the existing connector, the CPA structure has the advantages of simple structure, low manufacturing cost and the like, meanwhile, when the CPA component is unlocked, the unlocking of the primary locking mechanism can be realized by only sliding the CPA component from the second locking position to the first locking position, and the unlocking mode is simple and reliable. Moreover, when the CPA assembly is in the first locking position, the end of the CPA assembly 30 extends outside the electrical connector, which corresponds to extending the length of the latch arm 202, increasing the pressing moment, and facilitating the separation of the latch arm 202 and the locking protrusion 102 in the primary lock mechanism. Further, in order to achieve the best limiting effect, when the CPA assembly 30 is in the second locking position, the head of the CPA assembly 30 should be pressed directly above the locking protrusion 102, so as to have a better anti-falling effect, and referring specifically to fig. 6 and fig. 7, in the present utility model, fig. 6 and fig. 7 are cross-sectional views of the present utility model when the CPA assembly 30 is in the second locking position and the first locking position, respectively.

In one embodiment, as shown in fig. 3 to 5, the clamping arm 202 is provided with a guide groove 206 penetrating through one end connected with the socket sheath 20 along the extending direction thereof, the lower end surface of the cpa assembly 30 is provided with a locking block 302 matching with the guide groove 206 in shape, the inner wall of the guide groove 206 is provided with a preassembly part 207 and a locking part 208 at intervals along the arranging direction thereof, and the side wall of the locking block 302 is provided with a positioning part 303 matching with the preassembly part 207 and the locking part 208. Here, it should be noted that, in this embodiment, the preassembly portion 207 and the locking portion 208 are configured as protruding points protruding from the inner wall of the guide slot 206, and the positioning portion 303 is configured as a recess matching the protruding points, and when the CPA assembly 30 slides relative to the upper end surface of the clamping arm 202, the preassembly portion 207 and the locking portion 208 (protruding point structure) are sequentially matched with the positioning portion 303 (recess structure) to implement preassembly and locking of the CPA assembly 30.

Further, as shown in fig. 3, a stop boss 209 for preventing the CPA assembly 30 from falling off is provided at the top of the receptacle sheath 20 at the entrance of the guide slot 206, and as shown in fig. 7, when the CPA assembly 30 is in the first locking position (preassembly), the stop boss 209 can effectively prevent the CPA assembly 30 from falling off.

In an embodiment, as shown in fig. 5 and 3, the CPA assembly 30 is formed with grooves 301 on both side walls in the sliding direction for clamping the CPA assembly 30 to the clamping arm 202, further, the clamping arm 202 is recessed inwards in the region matched with the grooves 301 of the CPA assembly 30 to form a slideway 210 matched with the grooves 301, the CPA assembly 30 is clamped at the slideway 210 of the clamping arm 202 through the grooves 301 to realize stable lap joint with the upper end surface of the clamping arm 202, and then is matched with the slideway 210 through the grooves 301, so that relative sliding between the two parts can be realized.

Further, as shown in fig. 1, an upper end surface of CPA assembly 30 is provided with a slip-resistant feature 304 to facilitate pushing CPA assembly 30 to slide and thereby facilitate switching between the first and second locking positions.

In an embodiment, as shown in fig. 3 and 4, the top of the socket sheath 20 is further formed with a wall blocking structure 211 on two sides of the insertion path of the CPA assembly 30, and the wall blocking structure 211, the beam structure 204 and the socket sheath 20 are integrally formed, and the wall blocking structure 211, the beam structure 204 and the socket sheath 20 together enclose a frame-shaped structure with an opening at one end, so as to surround the three side walls of the CPA assembly 30, limit the sliding of the three side walls, and prevent the CPA assembly 30 and the clamping arm 202 from shaking and failing to smoothly enter the locking cavity 205 when the CPA assembly 30 is pushed by force.

While certain specific embodiments of the utility model have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims

1. The utility model provides an electric connector with CPA structure, includes CPA subassembly, plug sheath and with plug sheath assorted socket sheath, plug sheath is provided with the locking arch in the one end with socket sheath matched with, is provided with the joint arm on the socket sheath, the free end of joint arm seted up with the protruding matched with joint groove of locking, its characterized in that:

the CPA component is lapped on the upper end face of the clamping arm and can slide relatively relative to the upper end face of the clamping arm, and the CPA component is provided with a first locking position and a second locking position in the sliding process; the top of socket sheath is provided with the crossbeam structure, form between crossbeam structure and the socket sheath and be used for acceping the locking chamber of CPA subassembly, when the CPA subassembly is in the second locking position, the head of CPA subassembly acceptd in the inside of locking chamber and press and establish directly over the locking arch to the free end perk of restriction joint arm breaks away from with the locking arch.

2. An electrical connector with CPA structure according to claim 1, wherein: the clamping arm is of a cantilever structure, one end of the clamping arm is connected to the socket sheath, and the other end of the clamping arm extends along the direction that the plug sheath exits from the socket sheath.

3. An electrical connector with CPA structure according to claim 2, wherein: the utility model discloses a socket, including socket sheath, joint arm, CPA subassembly, guide slot, preassembly portion and locking portion are run through along its extending direction to the joint arm, CPA subassembly's lower terminal surface is provided with the locking piece with guide slot shape assorted, is provided with preassembly portion and locking portion along its setting direction interval on the inner wall of guide slot, is provided with on the lateral wall of locking piece with preassembly portion and locking portion matched with location portion.

4. An electrical connector having a CPA structure according to claim 3, wherein: the preassembly part and the locking part are protruding points protruding from the inner wall of the guide groove, and the positioning part is a groove matched with the protruding points.

5. An electrical connector having a CPA structure according to claim 3, wherein: the top of socket sheath is provided with the backstop boss that is used for preventing CPA subassembly drops in the entrance of guide way.

6. An electrical connector with CPA structure according to claim 1, wherein: grooves for clamping the CPA component to the clamping arms are formed in the two side walls of the CPA component in the sliding direction.

7. The electrical connector with CPA structure of claim 6, wherein: the clamping arms are recessed inwards in the region matched with the groove of the CPA assembly to form a slideway matched with the groove.

8. An electrical connector with CPA structure according to claim 1, wherein: the upper end surface of the CPA assembly has an anti-slip feature.

9. An electrical connector with CPA structure according to claim 1, wherein: the locking protrusion is provided with a chamfer for guiding the locking protrusion to enter the clamping groove.

10. An electrical connector with CPA structure according to claim 1, wherein: the top of socket sheath is in CPA subassembly's insertion path both sides still shaping has the wall structure, just wall structure, crossbeam structure and socket sheath integrated into one piece set up.