CN220021680U - Plug terminal and latch plug - Google Patents

Abstract

The utility model relates to a plug terminal and a lock catch plug, wherein the lock catch plug is provided with a plug shell with a locking cavity, a plug terminal arranged in the plug shell and a lock catch mechanism arranged in the plug shell, the periphery of the plug shell is provided with a mounting groove for mounting the lock catch mechanism and communicating with the locking cavity, the plug shell comprises a cavity wall formed outside the locking cavity and a plug-in part longitudinally formed in the cavity wall and provided with a plug-in cavity, the plug terminal comprises a butt joint part fixed in the plug-in cavity, the butt joint part comprises a terminal seat and a crown spring arranged in the terminal seat, the crown spring comprises a crown spring main body and a crown spring flanging fixed at the opening of the terminal seat, a limit bulge is arranged at one end of the crown spring far away from the crown spring flanging, and the limit bulge is propped against the crown spring and limited, and the crown spring flanging is molded on the crown spring without other fixing pieces so that the lock catch plug is simple to mount and save component materials, and the production cost is effectively reduced.

Description

Plug terminal and latch plug

Technical Field

The present utility model relates to the field of electrical connectors, and in particular, to a plug terminal and a locking plug.

Background

With the rapid development of battery technology, battery energy storage technology is widely applied to the fields of families, data centers, base stations, power grids and the like, all application fields have scale and size differences, battery energy storage is formed by connecting battery cell energy storage units together, mainly energy transfer is realized, a connector is needed to conduct each energy storage unit and can provide high-power transmission capability, and the energy storage connector is applied.

It is known that the plug is an important component of the energy storage connector, and the jack provided in the plug can be divided into a crown spring jack, a wire spring jack, a leaf spring jack and the like, and the crown springs in the common crown spring jack are generally packaged and fixed through steel rings, so that the structure of the jack is not simple enough, and the plug is a small device, and the steel rings are additionally arranged in the plug, so that the production cost is increased.

Disclosure of Invention

In order to solve the defects in the prior art, the utility model provides the plug terminal and the lock catch plug, and the plug terminal and the lock catch plug which are simpler in structure and lower in production cost can be provided.

In order to solve the technical problems, the utility model provides the following technical scheme:

the plug terminal comprises a butt joint part and a connecting part connected with the butt joint part, wherein the butt joint part comprises a terminal seat provided with a terminal cavity and a crown spring inserted in the terminal cavity, one side of the terminal cavity, which is close to the connecting part, is provided with a limiting bulge so as to limit the crown spring, the free end of the crown spring is outwards turned to form a crown spring flanging, and the crown spring flanging is coated on the outer side wall of the free end of the terminal seat.

The crown spring flanging comprises a step part attached to the inner wall surface of the terminal cavity and a ring part covered on the end surface of the terminal seat, and the outer diameter of the ring part is larger than that of the terminal seat.

In order to achieve the above purpose, the present utility model also adopts the following technical scheme:

the utility model provides a hasp plug, hasp plug includes plug terminal, will plug terminal integrated into one piece in plug casing and latch mechanism in, plug casing be equipped with the locking cavity and with the mounting groove of locking cavity intercommunication, latch mechanism install in the mounting groove, plug casing including form in locking cavity outlying cavity wall, protrusion extension formation's grafting portion, locking cavity is located grafting portion with between the cavity wall wherein, plug terminal's butt joint portion shaping in grafting portion, just the crown spring turn-ups is at least partly wrapped up by grafting portion is in order to fix the crown spring.

The flange of the crown spring comprises a step part attached to the inner wall surface of the terminal cavity and a ring part covered on the end surface of the terminal seat, the outer diameter of the ring part is larger than that of the terminal seat, and the plug part at least partially wraps the outer periphery of the ring part to fix the crown spring in the terminal cavity.

The plug shell further comprises a threaded pipe which is perpendicular to one end of the cavity wall and extends out of the threaded pipe, the connecting portion comprises a riveting portion connected with the terminal seat and a cable connecting portion extending out of the threaded pipe, the surface of the riveting portion facing one side of the terminal seat is concavely provided with a mounting blind hole, the terminal seat is provided with a mounting end corresponding to the mounting blind hole, and the mounting end of the terminal seat is riveted into the mounting blind hole.

The lock catch plug further comprises an elastic rubber ring arranged outside the cable connecting portion, a first sealing ring sleeved on one end of the threaded pipe, which faces the plug shell, and a nut matched with the threaded pipe.

The locking mechanism comprises a lock pin and an elastic piece which can be transversely installed in the installation groove, wherein the elastic piece comprises a spring and elastic hooks respectively arranged at two ends of the spring.

The lock pin comprises a lock pin main body, a lock catch part formed on one side of the lock pin main body and protruding into the locking cavity, an operation end which is far away from one end of the lock catch part and extends out of the installation groove, and a fixed column which is located on the same side as the lock catch part and far away from the locking cavity, wherein a fixed end is formed by protruding from the side of the fixed column, and the elastic hook is respectively hung on the fixed column and the fixed end.

The lock pin body protrudes towards the top surface of the mounting groove to form a transverse sliding block limited in the transverse sliding groove.

The fixing column and the fixing end keep the same straight line, and the straight line defined by the fixing column and the fixing end is parallel to the transverse sliding groove.

Compared with the prior art, the utility model provides the plug terminal and the lock catch plug, the lock catch plug is provided with the plug shell of the locking cavity, the plug terminal arranged in the plug shell and the lock catch mechanism arranged in the plug shell, the periphery of the plug shell is provided with the mounting groove for mounting the lock catch mechanism and communicating with the locking cavity, the plug shell comprises a cavity wall formed outside the locking cavity, and an inserting part longitudinally formed in the cavity wall and provided with the inserting cavity, the plug terminal comprises a butt joint part fixed in the inserting cavity, the butt joint part comprises a terminal seat and a crown spring flange fixed in an opening of the terminal seat, the terminal seat is positioned at one end of the crown spring far away from the crown spring flange and is provided with a limit bulge, and the limit bulge is propped against the crown spring and is limited by the crown spring.

Drawings

FIG. 1 is a schematic view of a latch plug according to a first embodiment of the present utility model;

FIG. 2 is a schematic view showing the structure of a latch plug according to the present utility model;

FIG. 3 is a schematic view of a second angle of the locking plug of the present utility model;

FIG. 4 is a schematic cross-sectional view of FIG. 3 along the line A-a;

FIG. 5 is a schematic view of a plug housing of a latching plug according to the present utility model;

FIG. 6 is a schematic view of a latch mechanism of the latch plug of the present utility model assembled to a plug housing;

FIG. 7 is a schematic view of a latch mechanism of the latch plug according to the present utility model;

FIG. 8 is a schematic view of another angle of the latch mechanism of the latch plug according to the present utility model;

fig. 9 is a schematic structural view of a crown spring of the plug terminal of the present utility model.

The meaning of the reference numerals in the drawings are:

10-a plug housing; 10 a-locking cavity; 11-plug terminals; 12-cavity wall; 13-a plug-in part; 13 a-a plug cavity; 14-a mounting groove; 15-a threaded tube; 16-terminal grooves; 16 a-a communication chamber; 17-nut; 18-cover plate; 20-a first sealing ring; 21-a second sealing ring; 22-elastic rubber rings; 30-a locking mechanism; 31-locking pin; 32-an elastic member; 111-butt joint; 111 a-a docking chamber; 112-a connection; 113-terminal blocks; 19-crown springs; 131-a first seal groove; 141-a fixed end; 142-a lateral sliding groove; thread-151; a second seal groove-152; 311-a latch body; 312-a latch portion; 313-an operating end; 314-fixing the column; 315-a transverse slider; 321-a spring; 322-elastic hooks; 191-crown spring body; 192-crown spring flanging; 1921—a step; 1922-a ring portion; 19 a-terminal cavities; 1131-limit protrusions; 1121—a rivet; 1122-cable connection; 1123-mounting a blind hole; 1132—mounting end.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Referring to fig. 1 to 4, the latching plug includes a plug housing 10 having a locking cavity 10a, and a plug terminal 11 disposed in the plug housing 10. The plug housing 10 has an L-shaped structure, and comprises a cavity wall 12 formed at the periphery of the locking cavity 10a, a plugging portion 13 longitudinally formed in the cavity wall 12 and provided with a plugging cavity 13a, and the plug terminal 11 comprises a butt joint portion 111 fixed in the plugging cavity 13a, a mounting groove 14 formed on the plug housing 10 and communicated with the periphery of the locking cavity 10a, a threaded tube 15 formed perpendicular to one end of the cavity wall 12, and a terminal groove 16 extending out of the free end of the threaded tube 15 along the lower end of the plugging portion 13. The terminal groove 16 includes a socket cavity 13a formed in the socket portion 13 in the front-rear direction and a communication cavity 16a penetrating the screw pipe 15 rearward and communicating with the socket cavity 13 a.

Referring to fig. 2 and 4, the plug terminal 11 includes a mating portion 111 fixed in the plugging cavity 13a and a connecting portion 112 fixed in the communication cavity 16a, and the mating portion 111 is electrically connected to the connecting portion 112. The abutting portion 111 is disposed along the inner wall direction of the plugging cavity 13a, the connecting portion 112 extends along the inner wall direction of the communicating cavity 16a to be connected with the abutting portion 111, specifically, after the abutting portion 111 and the connecting portion 112 are riveted together, the plug housing 10 is formed by in-mold injection molding.

Referring to fig. 2 and 4, the plugging portion 13 protrudes downward and is inserted into a socket (not shown), and the lower end of the plugging portion 13 is lower than the lower end of the cavity wall 12. The outer surface of the plug-in portion 13 is concavely provided with a first sealing groove 131, the first sealing groove 131 is provided with a first sealing ring 20, and the first sealing ring 20 is clamped between the outer surface of the plug-in portion 13 and the inner wall surface of a butt joint cavity 111a provided by the butt joint portion 111 to realize sealing. The mounting groove 14 is opened in the plug housing 10 in the lateral direction and communicates with the locking cavity 10 a. The mounting groove 14 is preferably located between the threaded pipe 15 and the cavity wall 12, a thread 151 is provided on the outer periphery of the threaded pipe 15, a second seal groove 152 is provided on the inner side of the thread 151, and a second seal ring 21 is mounted on the second seal groove 152.

In a preferred embodiment, referring to fig. 2 and 4, the abutting portion 111 of the socket terminal 11 includes a terminal seat 113 having a cylindrical structure and provided with a terminal cavity 19a, and a crown spring 19 inserted into the terminal cavity 19 a. The crown spring 19 includes a crown spring main body 191 and a crown spring flange 192 fixed at an opening of the terminal seat 113, the terminal seat 113 is located at one end of the crown spring 19 away from the crown spring flange 192, which is provided with a limit protrusion 1131, the limit protrusion 1131 abuts against the bottom of the crown spring 19 and limits the position, the crown spring flange 192 includes a step portion 1921 attached to an inner wall surface of the terminal cavity 19a and a circular ring portion 1922 bent radially from the step portion 1921 and covering a front end surface of the terminal seat 113, the circular ring portion 1922 may be integrally punched when the crown spring 19 is punched, or may be formed by bending the step portion 1921 of the crown spring 19 by pressing the step portion 1921 outwards through a die during injection molding, and after injection molding, an end edge of the plug portion 13 at least partially wraps a periphery of the circular ring portion 1922 to fix the crown spring 19 in the terminal seat 113 from both ends with the limit protrusion 1131. The pins of the socket are inserted into the terminal block 113 and elastically contact with the crown spring 19 to be electrically connected. The crown spring flanging 192 is integrally formed on the crown spring 19, and other fixing pieces are not needed to fix the crown spring 19, so that the structure is simple and convenient to install, the materials of parts are saved, and the production cost is effectively reduced.

In a preferred embodiment, referring to fig. 2, the connection portion 112 includes a rivet portion 1121 connected to the terminal base 113, and a cable connection portion 1122 extending from the rivet portion 1121 to the outside of the threaded tube 15. The terminal seat 113 is provided with a mounting end 1132 towards one end of the riveting portion 1121, and a mounting blind hole 1123 which is riveted with the mounting end 1132 is formed in the riveting portion 1121 in a concave manner corresponding to the mounting end 1132. The mounting blind hole 1123 prevents the flowing plastic from entering the terminal cavity 19a during injection molding, as compared to conventional through hole designs. The cable connection portion 1122 has a cylindrical structure, and the cable connection portion 1122 protrudes at least partially rearward out of the threaded tube 15. The locking plug further comprises an elastic rubber ring 22 arranged outside the cable connection portion 1122, a first sealing ring 20 sleeved on one end of the threaded tube 15 facing the plug housing 10, and a nut 17 matched with the threaded tube 15, wherein the elastic rubber ring 22 is partially sleeved outside the cable connection portion 1122 and partially extends backwards beyond the cable connection portion 1122 without overlapping the cable connection portion 1122. The nut 17 is screwed to the outside of the threaded pipe 15, and at this time, the elastic rubber ring 22 is partially pressed between the nut 17 and the cable connecting portion 1122 to seal the cable (not shown) and partially pressed between the cable (not shown) and the nut 17 to seal the cable. The second sealing ring 21 is pressed forward by the nut 17 to realize sealing, so that multiple sealing effects are realized, and the waterproof performance is ensured.

Referring to fig. 1 to 8, the latch mechanism 3 includes a latch 31 and an elastic member 32 that can be mounted in the mounting groove 14 in a lateral direction, the elastic member 32 includes a spring 321 and elastic hooks 322 disposed at two ends of the spring 321, respectively, wherein the latch 31 includes a latch main body 311, a latch portion 312 formed at one side of the latch main body 311 and protruding into the locking cavity 10a, an operation end 313 formed at one end far from the latch portion 312 and extending out of the mounting groove 14, and a fixing post 314 formed at the same side as the latch portion 312 and far from the locking cavity 10a, the mounting groove 14 is formed at the side of the fixing post 314 in a protruding manner, the elastic hooks 322 are respectively hooked on the fixing post 314 and the fixing end 141, a lateral sliding groove 142 extending in a lateral direction is formed at a downward recess of the mounting groove 14, the latch main body 311 protrudes toward a top surface of the mounting groove 14 to form a lateral sliding block 315 limited in the lateral sliding groove 142, and when the main body 311 is assembled, the latch main body 311 is first limited in the lateral sliding groove 142 and can slide in the lateral sliding groove 315. The operation end 313 extends out of the mounting groove 14, and then the elastic hook 322 of the elastic member 32 is respectively coupled to the fixing post 314 and the fixing end 141. Finally, the cover plate 18 is fastened to the underside of the mounting groove 14. The elastic member 32 is always in a stretched state, so that the locking pin 31 is normally pulled to the side of the mounting groove 14, that is, the locking portion 312 is normally located when it is located in the locking cavity 10 a. A straight line formed by a straight line defined by the fixing post 314 and the fixing end 141 is parallel to the lateral sliding groove 142 in the lateral direction.

In a preferred embodiment, referring to fig. 1 to 8, when the socket is inserted into the locking cavity 10a, the housing (not shown) of the socket applies a force to the inclined surface of the locking portion 312, so that the inclined surface of the locking portion 312 obtains a downward and leftward force, and the locking pin 31 moves leftwards and exits the locking cavity 10a against the tension of the elastic member 32 to insert the socket, and then the locking pin 31 is reset under the tension of the elastic member 32, the locking portion 312 is snapped into the housing of the socket to lock the socket, and when the socket and the plug are required to be separated, the operating end 313 is pressed leftwards, so that the locking pin 31 moves leftwards against the tension of the elastic member 32, and the locking portion 312 exits the housing of the socket to unlock and separate the locking plug from the socket. The above embodiment adopts the pressing mode to unlock, the operation is convenient, and the elastic force provided by the elastic piece 32 is used, so that the better unlocking force can be maintained, and the lock catch failure is avoided.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples only represent preferred embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. The plug terminal comprises a butt joint part and a connecting part connected with the butt joint part, wherein the butt joint part comprises a terminal seat provided with a terminal cavity and a crown spring inserted in the terminal cavity.

2. The plug terminal of claim 1, wherein the crown spring flange includes a stepped portion attached to an inner wall surface of the terminal cavity and a circular ring portion covering an end surface of the terminal block, and an outer diameter of the circular ring portion is larger than an outer diameter of the terminal block.

3. The lock catch plug is characterized by comprising the plug terminal, a plug shell and a lock catch mechanism, wherein the plug terminal is integrally formed in the plug shell, the plug shell is provided with a locking cavity and an installation groove communicated with the locking cavity, the lock catch mechanism is installed in the installation groove, the plug shell comprises a cavity wall formed at the periphery of the locking cavity and an inserting portion formed by protruding extension, the locking cavity is located between the inserting portion and the cavity wall, a butt joint portion of the plug terminal is formed in the inserting portion, and the crown spring flanging is at least partially wrapped by the inserting portion to fix the crown spring.

4. A locking plug according to claim 3, wherein the crown spring flange comprises a step portion attached to the inner wall surface of the terminal cavity and a ring portion covering the end surface of the terminal block, the outer diameter of the ring portion is larger than that of the terminal block, and the insertion portion at least partially wraps the outer periphery of the ring portion to fix the crown spring in the terminal cavity.

5. The locking plug according to claim 4, wherein the plug housing further comprises a threaded tube extending perpendicular to one end of the cavity wall, the other end of the connecting portion extends out of the threaded tube, the connecting portion comprises a riveting portion connected with the terminal block and a cable connecting portion extending from the riveting portion to the outside of the threaded tube, a mounting blind hole is concavely formed in a surface of the riveting portion facing one side of the terminal block, a mounting end is arranged on the terminal block corresponding to the mounting blind hole, and the mounting end of the terminal block is riveted into the mounting blind hole.

6. The locking plug of claim 5, further comprising an elastic rubber ring disposed outside the cable connection portion, a first sealing ring sleeved on an end of the threaded tube facing the plug housing, and a nut engaged with the threaded tube.

7. A latching plug according to claim 3, wherein said latching mechanism comprises a latch laterally mountable in said mounting slot and an elastic member comprising a spring and elastic hooks provided at both ends of said spring, respectively.

8. The locking plug of claim 7, wherein the locking pin comprises a locking pin body, a locking portion formed at one side of the locking pin body and protruding into the locking cavity, an operating end formed away from one end of the locking portion and extending out of the mounting groove, and a fixing post formed at the same side as the locking portion and away from the locking cavity, the mounting groove is formed at the side of the fixing post in a protruding manner, and the elastic hook is respectively hung on the fixing post and the fixing end.

9. The locking plug of claim 8, wherein the mounting slot has a top surface recessed downwardly to form a laterally extending lateral slide slot, and the locking pin body projects toward the top surface of the mounting slot to form a lateral slider that is restrained within the lateral slide slot.

10. The locking plug of claim 9, wherein the fixed post is collinear with the fixed end and a line defined by the fixed post and the fixed end is parallel to the lateral sliding channel.