CN218548984U

CN218548984U - Plug assembly with secondary unlocking structure

Info

Publication number: CN218548984U
Application number: CN202223072112.7U
Authority: CN
Inventors: 荣慧超; 金华军; 李闻
Original assignee: Shanghai Kunwen Connector System Co ltd
Current assignee: Shanghai Kunwen Connector System Co ltd
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-02-28
Anticipated expiration: 2032-11-21

Abstract

The utility model relates to a plug subassembly with secondary unlocking structure, including socket casing, plug housing, locking plate and dog are all preassembled in the plug casing, and locking plate, dog and plug housing make up into plug assembly, and plug assembly cooperates with the spacing grafting of socket casing, and locking plate and dog have the two shelves of mounted positions of preassembleing and locking respectively. The utility model has the advantages of reasonable design, through the secondary unlocking structure after optimizing, adopt the plug and press multiple structure combination such as, guarantee socket and plug connection's locking stability and security, effectively avoid the condition that the block became invalid. The parts of this structure can quick assembly disassembly, and the reinforcing convenience of use to can guarantee the security of locking part, effectively avoid the risk of droing, make high-pressure connector stable and safe.

Description

Plug assembly with secondary unlocking structure

Technical Field

The utility model discloses be applied to new forms of energy electric automobile field, relate to high electric connector's second grade release mechanism, especially a plug subassembly with secondary unlocking structure.

Background

Electrical connectors are widely used in various electrical circuits to connect or disconnect electrical circuits. With the rise of hybrid electric vehicles and electric vehicles, high-voltage connectors are becoming a new hot spot for connector applications. The main function of the device is the connection between the power distribution unit and the power utilization unit. An important feature of automotive high-voltage connectors, which is different from conventional connectors, is their safety performance. The basic components include a plug and a socket with wires and a locking mechanism, and when the plug and the socket are matched with each other, the circuit is conducted. Due to the particularity of its use in a high pressure environment, it is necessary to maintain a reliable connection under normal operating conditions, which should not be released by vibration or accidental touch. When in maintenance, in order to ensure the personal safety of an operator, the operator cannot cause damage which is difficult to estimate because of overlarge voltage during operation. However, in the actual operation process, because the separation speed is very fast, the signal contact and the power contact are almost simultaneously disconnected, and an accident caused by energy release of a high-voltage line can be caused, and it can be seen that an electric connector of a first-level locking mechanism cannot meet the use requirements of a new energy automobile.

Based on the unsafe factors of the conventional high voltage connectors, how to provide a stable and safe high voltage connector becomes a problem to be solved by the related connector manufacturers.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's weak point, provide a design science, rational in infrastructure, reliable operation, high plug subassembly that has secondary unlocking structure of security.

The utility model provides a its technical problem take following technical scheme to realize:

a plug assembly with secondary unlocking structure, characterized in that: the plug comprises a plug shell, a locking plate and a stop block, wherein the locking plate and the stop block are both preassembled in the plug shell, and the locking plate and the stop block are respectively provided with two mounting positions of preassembly and locking;

the middle part of the plug shell is provided with a cantilever which is transversely arranged, the free end part of the cantilever is provided with a plug shell pressing part, and the middle part of the cantilever close to the plug shell pressing part is provided with a plug hanging table; two sliding rails are symmetrically arranged in the plug shell on the two longitudinal sides of the cantilever, and a first sliding groove and a second sliding groove are respectively arranged on the upper side and the lower side of each sliding rail;

a locking plate hanging table is arranged at the front end of the locking plate, rotating shafts are arranged on two sides of the middle of the locking plate, a locking plate pressing part is arranged at the tail of the locking plate, a locking plate buckle is arranged in the middle of the lower end of the locking plate pressing part, two protruding ribs are arranged on two longitudinal sides of the lower end of the locking plate at intervals, a locking plate limiting surface I and a locking plate limiting surface II are respectively arranged on the two protruding ribs, and the locking plate stretches across the cantilever and is inserted into the sliding groove I;

the stop block comprises a transverse plate and two extension arms, two extension arms which extend out vertically are symmetrically arranged at two ends of the transverse plate, and the two extension arms are symmetrically inserted into the second sliding groove.

And, be provided with in the spout two and accomodate the chamber, accomodate two terminal surfaces in chamber and be spacing face two and spacing face three respectively.

And two convex ribs are arranged on the two extension arms at intervals, the first convex rib is flush with the end faces of the two arms, a stop block thrust surface, a stop block stress surface and a stop block guide surface are arranged on the first convex rib, and a stop block stopping surface is arranged on the second convex rib.

And the side wall of the socket shell is provided with a socket shell buckle, and the end part of the socket shell inserted into the plug shell is the end surface of the socket shell.

And a third accommodating cavity is formed in the middle of the cantilever in front of the plug hanging table at intervals.

Moreover, two sliding rails are symmetrically arranged in the plug shell at the two longitudinal sides of the cantilever, and one side of each sliding rail facing the cantilever is provided with a blocking rib.

And the transverse end part of the first sliding groove is provided with a first limiting surface which is a concave surface structure and used for limiting the rotating shaft of the locking plate, and the rotating shaft of the locking plate can rotate.

And the transverse plate extends to form rib positions towards the two arms, and the top of each rib position is provided with a stop block limiting surface.

Moreover, the locking plate is cuboid and longitudinally symmetrical on two sides.

The utility model discloses an advantage is with positive effect:

1. the utility model has the advantages of reasonable design, through the secondary unlocking structure after optimizing, adopt the plug and press multiple structure combination such as, guarantee socket and plug connection's locking stability and security, effectively avoid the condition that the block became invalid.

2. The parts of this structure can quick assembly disassembly, and the reinforcing convenience of use to can guarantee the security of locking part, effectively avoid the risk of droing.

Drawings

FIG. 1 is an exploded view of the overall structure;

FIG. 2 is a partial cross-sectional view (top view) in an assembled state;

FIG. 3 isbase:Sub>A sectional view taken along line A-A of FIG. 2;

FIG. 4 is a sectional view taken along line B-B of FIG. 2;

FIG. 5 is a schematic view of the locking plate construction;

FIG. 6 is a schematic view of the stopper structure;

FIG. 7 is a schematic view of a pre-assembled configuration of the plug assembly;

FIG. 8 is a schematic view of a structure of a locking piece in a fixed state;

FIG. 9 is a schematic view of the overall structure in a locked state;

FIG. 10 is a schematic view of the pull out stop;

FIG. 11 is a structural view of a one-time unlocking state;

FIG. 12 is a top view of FIG. 11;

fig. 13 is a schematic view of the structure of the socket housing.

The reference numbers in the drawings:

1. socket shell 101, socket shell buckle 102, socket shell end face

2. The plug housing 201, the plug housing pressing portion 202, the plug hanging table 203, the sliding rail 204, the blocking rib 205, the sliding groove I206, the sliding groove II 207, the limiting surface I208, the accommodating cavity I209, the accommodating cavity II 210, the limiting surface II 211, the limiting surface III 212, the accommodating cavity III 213 and the cantilever

3. Locking plate 301, locking plate hanging table 302, locking plate rotating shaft 303, locking plate pressing part 304, locking plate buckle 305, locking plate limiting surface I306 and locking plate limiting surface II

4. Stop block 401, transverse plate 402, stop block first limit surface 403, stop block retaining surface 404, stop block thrust surface 405, stop block force bearing surface 406 and stop block guide surface

Detailed Description

The present invention will be described in more detail with reference to the following embodiments, which are provided by way of illustration and not limitation, and the scope of the present invention should not be limited thereby.

A plug assembly with a secondary unlocking structure comprises a plug shell 2, a locking plate 3 and a stop block 4, wherein the locking plate and the stop block are both preassembled in the plug shell and are respectively provided with two mounting positions of preassembly and locking, and the locking plate, the stop block and the plug shell are combined into the plug assembly;

the transverse and longitudinal directions of the plug housing are described in the direction shown in fig. 2, with the left side being the front and the right side being the rear.

A transversely arranged cantilever 213 is arranged in the middle of the plug shell 2, a plug shell pressing part 201 is arranged at the free end part of the cantilever, a plug hanging table 202 is arranged at the middle position of the cantilever close to the plug shell pressing part, a third accommodating cavity 212 (refer to attached figures 2 and 3) is arranged in the middle of the cantilever in front of the plug hanging table at intervals, and the plug hanging table and the third accommodating cavity are respectively used for installing locking plate buckles in a pre-installation state and a working state; two sliding rails 203 are symmetrically arranged in the plug shell at the two longitudinal sides of the cantilever, and one sides of the sliding rails 203 facing the cantilever are provided with blocking ribs 204; a first sliding groove 205 and a second sliding groove 206 are respectively arranged on the upper side and the lower side of the sliding rail 203, the first sliding groove is used for accommodating a locking plate, and the second sliding groove is used for accommodating a stop block; the transverse end part of the first sliding groove 205 is provided with a first limiting surface 207 which is a concave surface structure and used for limiting a locking plate rotating shaft of the locking plate; a storage cavity 208 and a storage cavity 209 are arranged in the second sliding groove 206, and two end surfaces of the storage cavity 209 are a second limiting surface 210 and a third limiting surface 211 (see fig. 4).

The locking plate 3 is rectangular and symmetrical in longitudinal two sides, a locking plate hanging table 301 is arranged at the front end of the locking plate, rotating shafts 302 are arranged on two sides of the middle of the locking plate, a locking plate pressing portion 303 is arranged at the tail of the locking plate, a locking plate buckle 304 is arranged in the middle of the lower end of the locking plate pressing portion 303, two convex ribs are arranged on two longitudinal sides of the lower end of the locking plate at intervals, a locking plate limiting surface I305 and a locking plate limiting surface II 306 (see figures 1 and 5) are respectively arranged on the two convex ribs, and the locking plate buckle 304 is used for being embedded into the plug hanging table 202 or accommodating cavity III 212. The locking plate 3 spans the cantilever 213, and the locking plate rotating shafts 302 on both sides are respectively positioned in the first sliding groove 205 and can move back and forth in the first sliding groove (see fig. 7 and 8).

The stop block 4 comprises a transverse plate 401 and two extension arms, two extension arms extending perpendicularly are symmetrically arranged at two ends of the transverse plate, a rib position extends from the transverse plate 401 towards two arms, a stop block limiting surface 402 is arranged at the top of the rib position, two convex ribs are arranged on the two extension arms at intervals, a first convex rib is flush with the end surfaces of the two arms, a stop block thrust surface 404, a stop block stress surface 405 and a stop block guide surface 406 (figure 1) are arranged on the first convex rib, and a stop block stopping surface 403 (figure 6) is arranged on the second convex rib. The stopper is located in the sliding groove 206, and the stopper stopping surface 403 and the stopper thrust surface 404 of the stopper are respectively stopped by the third limiting surface 211 and the second limiting surface 210, so that the locking block 4 is in a fixed state in a pre-assembly state.

The plug assembly can be in limited plug-in fit with the socket housing 1, and the structure of the socket housing of the embodiment is shown in fig. 13. The side wall of the socket housing 1 is provided with a socket housing buckle 101, and the end of the socket housing for inserting into the plug housing is a socket housing end face 102.

Locking process:

inserting the socket shell and the plug assembly, wherein in the process of opposite insertion, the first lock plate limiting surface 305 enables the lock plate 3 to enter a working position under the thrust of the end surface 102 of the socket shell, meanwhile, the second lock plate limiting surface 306 gradually moves to the position above the stop block stress surface 405 along the stop block guide surface 406, and the stop of the second limit surface 210 on the stop block thrust surface 404 is removed under the action of downward pressure;

then, the transverse plate 401 is pushed towards the direction of the socket shell, so that the stop block 4 moves to the working position, and the stop locking plate pressing part 303 of the first stop block limiting surface 402 cannot be pressed downwards, so that locking is completed;

under the locking state, the locking plate hanging table 301 of the locking plate 3 is matched with the socket shell buckle 101, the locking plate buckle 304 is matched with the plug hanging table 202 of the plug shell 2, and the socket shell and the plug shell are locked by the locking plate 3.

An unlocking process:

first, the stopper 4 is released from the restriction of the plug housing pressing portion 201,

the plug housing 2 is pulled out a distance while the housing pressing part 201 is pressed, and one-time unlocking is completed;

then, the locking plate pressing portion 303 is pressed, the locking plate hanging table 301 is lifted up under the action of the locking plate rotating shaft 302, and then the plug is pulled out, so that the plug housing 2 is separated from the socket housing 1, and secondary unlocking is completed.

Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims, and therefore, the scope of the present invention is not limited to the disclosure of the embodiments and the accompanying drawings.

Claims

1. A plug assembly with secondary unlocking structure, characterized in that: the plug comprises a plug shell, a locking plate and a stop block, wherein the locking plate and the stop block are both preassembled in the plug shell, and the locking plate and the stop block are respectively provided with two mounting positions of preassembly and locking;

the middle part of the plug shell is provided with a cantilever which is transversely arranged, the free end part of the cantilever is provided with a plug shell pressing part, and the middle part of the cantilever, which is close to the plug shell pressing part, is provided with a plug hanging table; two sliding rails are symmetrically arranged in the plug shell on the two longitudinal sides of the cantilever, and a first sliding groove and a second sliding groove are respectively arranged on the upper side and the lower side of each sliding rail;

2. The plug assembly with the secondary unlocking structure according to claim 1, wherein: the second sliding groove is internally provided with a containing cavity and a containing cavity, and two end faces of the containing cavity are a second limiting face and a third limiting face respectively.

3. The plug assembly with the secondary unlocking structure according to claim 1, wherein: two protruding muscle of department are made at the interval on two extension arms, protruding muscle one and the terminal surface parallel and level of two arms, and dog thrust surface, dog atress face and dog spigot surface have been arranged to protruding muscle one above, and the system has the dog stopping face on the protruding muscle two.

4. The plug assembly with the secondary unlocking structure according to claim 1, wherein: the side wall of the socket shell is provided with a socket shell buckle, and the end part of the socket shell inserted into the plug shell is the end surface of the socket shell.

5. The plug assembly with the secondary unlocking structure according to claim 1, wherein: and a third accommodating cavity is formed in the middle of the cantilever in front of the plug hanging table at intervals.

6. The plug assembly with the secondary unlocking structure according to claim 1, wherein: two slide rails are symmetrically arranged in the plug shell at the two longitudinal sides of the cantilever, and one side of each slide rail facing the cantilever is provided with a blocking rib.

7. The plug assembly with the secondary unlocking structure according to claim 1, wherein: the transverse end of the first sliding groove is provided with a first limiting face, the first limiting face is of a concave surface structure and used for limiting a rotating shaft of the locking plate, and the rotating shaft of the locking plate can rotate.

8. The plug assembly with the secondary unlocking structure according to claim 1, wherein: the transverse plate extends to form rib positions towards the two arms, and the top of each rib position is provided with a stop block limiting surface.

9. The plug assembly with the secondary unlocking structure according to claim 1, wherein: the locking plate is cuboid and symmetrical in longitudinal direction.