A straight welding cart plug

Abstract

The utility model provides a kind of plug for straight welding car, including the plug shell and plug cover of being hung and the secondary locking structure being arranged between plug shell and plug cover;Plug shell is equipped with the hanging buckle structure for being connected with the plug hooking, secondary locking structure is equipped with the lock catch for the unlocking and separation of connector with the hooking cooperation of hanging buckle structure.By secondary locking mechanism, avoid due to the operation of error to cause connector to break off when not needing separation;By adopting the split type structure that plug shell and plug cover are hung and connected, so that secondary locking mechanism is loaded into plug shell again after CPA is loaded, avoid integral plug to give CPA enough installation space and increase volume, so that the space size of connector can be effectively reduced, realize the wiring requirement of narrow space;And the assembly structure of split plug is convenient for the assembly of secondary locking mechanism, also avoid secondary locking mechanism to easily slide out.

Description

Technical Field

[0001] This utility model relates to the field of automotive wiring harness technology, and in particular to a vehicle plug. Background Technology

[0002] As an emerging field, energy storage places special demands on connectors, and with the increasing scale, the requirements for assembly efficiency, production efficiency, safety, and installation space are becoming increasingly stringent.

[0003] The straight plug energy storage connectors on the market are bulky and lack secondary locking function, which cannot meet the requirements of customers for large-scale installations. Therefore, against this background, we integrated the requirements and pain points of energy storage customers for large-scale installations, solved all pain points and requirements, and developed a new generation of energy storage products.

[0004] Chinese utility model patent CN221407803U, published on July 23, 2024, discloses a pressable secondary locking structure and an electrical connector. The pressable secondary locking structure includes a plug housing, a socket housing, and a secondary latch. The socket housing has a first mounting platform and a second mounting platform, both with wedge-shaped bevels along the insertion direction. The plug housing has a secondary latch receiving cavity, a primary latch, a secondary latch, a first unlocking part, and a second unlocking part. The secondary latch head has a cantilever latch. A limiting mechanism and a locking mechanism are provided between the secondary latch and the secondary latch receiving cavity. However, since the plug housing of the electrical connector is integrated, sufficient installation space needs to be left at the top of the plug housing to facilitate the insertion and movement of the secondary latch, increasing the volume of the plug housing and thus the size of the connector, occupying more installation space in the vehicle. Furthermore, this structure also suffers from the drawbacks of being either difficult to insert or prone to slipping out. Summary of the Invention

[0005] To address the aforementioned technical problems, this utility model proposes a straight-welded automotive connector, which solves the problems of existing electrical connectors with secondary locking structures being bulky and occupying more installation space, and the secondary locking being difficult to install or easy to slip out when installed on an integrated connector housing.

[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows: A straight-welded automotive connector includes a connector housing and a connector cover plate that are connected together, as well as a secondary locking structure disposed between the connector housing and the connector cover plate. The connector housing has a hook structure for hooking and connecting with a socket, and the secondary locking structure has a locking buckle that engages with the hook structure. This invention employs a two-piece structure where the connector housing and connector cover plate are connected together, allowing the secondary locking mechanism (CPA) to be embedded between the connector housing and the connector cover plate. This effectively reduces the connector's spatial dimensions, meeting wiring requirements in confined spaces. Furthermore, the split structure allows the secondary locking mechanism to be installed into the connector housing before the connector cover plate is installed, facilitating assembly of the secondary locking mechanism and preventing it from easily slipping out.

[0007] Furthermore, the latch includes a cantilever arm that extends into the plug housing, and the lower front end of the cantilever arm is provided with a hook that engages with the side of the latch structure away from the socket for pressing the latch structure onto the socket.

[0008] Furthermore, the secondary locking structure is slidably connected to the plug housing; the lower side of the secondary locking structure is provided with a sliding groove, and the plug housing is provided with a sliding rail that cooperates with the sliding groove.

[0009] Furthermore, two slide rails are symmetrically arranged inside the plug housing, and the upper ends of the two slide rails are connected by a stop block.

[0010] Furthermore, the upper middle part of the cantilever arm is provided with a protrusion that cooperates with the stop block. The front side of the protrusion is an inclined surface that can slide with the rear side of the stop block; the rear side of the protrusion is a stop plane that cooperates with the front side of the stop block.

[0011] Furthermore, the upper side of the plug cover is provided with a backstop protrusion, and the lower side of the tail of the secondary locking structure is provided with a sloping stop block that abuts against the backstop protrusion.

[0012] Furthermore, the secondary locking structure is also provided with a sliding part for sliding the secondary locking structure, and the sliding part is a concave surface with anti-slip grooves.

[0013] Furthermore, to facilitate the connection between the plug and the socket, the outside of the socket is provided with a hook that engages with the hook structure.

[0014] Furthermore, the longitudinal section of the plug cover is a rectangular structure with rounded corners; the plug cover is provided with a socket terminal; the flat plate structure of the socket terminal is arranged parallel to the diagonal of the rectangular structure.

[0015] Furthermore, to facilitate the connection between the plug housing and the plug cover, the plug cover is provided with mounting platforms on both sides, and the plug housing is provided with mounting holes that mate with the mounting platforms.

[0016] The beneficial effects of this utility model are: 1. This utility model uses a CPA secondary locking mechanism to prevent the connector from disengaging when it is not necessary due to incorrect operation; 2. This utility model adopts a two-piece structure in which the plug shell and the plug cover plate are connected, so that the secondary locking mechanism, namely CPA, is embedded between the plug shell and the plug cover plate. This avoids the need to leave enough installation space for the CPA in an integrated plug, which would increase the size of the connector. This effectively reduces the space size of the connector and meets the wiring requirements in narrow spaces. Furthermore, the assembly structure of the split plug facilitates the assembly of the secondary locking mechanism and prevents the secondary locking mechanism from easily slipping out. 3. The plug of this utility model adopts a plug shell and plug cover plate that are hooked together, and the hooking is achieved during the assembly process. This split hooking structure can effectively shorten the length of the connector and realize the miniaturization of the connector. 4. The terminals of this utility model are installed into the housing at a 45-degree angle, which enables the miniaturization of the connector; the terminals adopt an arc transition form, which can effectively save assembly space and further realize the miniaturization of the connector. 5. After the plug and socket of this utility model are inserted into place, they are hooked together with the lugs on the socket through the hook structure on the plug shell, thereby achieving a first locking; pushing the CPA from the starting position to the ending position achieves a second locking, preventing accidental unlocking. 6. This utility model can realize batch crimping of wire harnesses and then batch assembly, thus improving efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the exploded structure of this utility model; Figure 3 This is a schematic diagram of the main structure of the plug housing of this utility model; Figure 4 This is a schematic diagram of the main structure of the plug cover of this utility model; Figure 5 This is a three-dimensional structural diagram of the plug shell of this utility model. Figure 1 ; Figure 6 This is a three-dimensional structural diagram of the plug shell of this utility model. Figure 2 ; Figure 7 This is a cross-sectional view of the plug housing of this utility model; Figure 8 This is a schematic diagram of the secondary locking structure of this utility model. Figure 1 ; Figure 9 This is a schematic diagram of the secondary locking structure of this utility model. Figure 2 ; Figure 10 This is a longitudinal sectional view of the present invention. Figure 11 This is a schematic diagram of the mating structure between the plug cover and the socket terminal of this utility model; Figure 12 This is a structural schematic diagram of the initial position of the present invention in conjunction with the socket; Figure 13 This is a structural schematic diagram of the termination position of the present invention and the socket.

[0019] In the diagram: 1. Plug housing, 11. Hanging hole, 12. Hook structure, 13. Stop block, 14. Slide rail, 2. Secondary locking structure, 21. Cantilever arm, 211. Hook, 212. Protrusion, 22. Slide groove, 23. Sliding part, 24. Angled stop block, 3. Tail cover, 4. Sealing body, 5. Socket terminal, 6. Plug cover plate, 61. Anti-reverse protrusion, 62. Hanging platform, 7. Plug rubber ring, 8. Socket, 81. Hanging lug, 9. Male terminal. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1 As shown in Embodiment 1 of this utility model, a straight-welded automotive plug includes a plug housing 1 and a plug cover 6 that are hooked together, and a secondary locking structure 2 disposed between the plug housing 1 and the plug cover 6. The plug housing 1 is provided with a hook structure 12 for hooking and connecting with a socket 8, wherein, as shown... Figure 13 As shown, the outer side of the socket 8 is provided with a hook nose 81 that engages with the hook structure 12. The front end of the hook structure 12 has a hook groove with an opening facing backward and a closed front end. The plug is hung on the hook nose 81 through the hook groove, and the bottom of the hook groove abuts against the hook nose 81, so that the plug and socket are hooked and connected. The secondary locking structure 2 is provided with a latch, which engages with the hook structure 12 to limit the movement and prevent the hook structure 12 from detaching from the socket 8.

[0022] Furthermore, such as Figure 8 and Figure 9 As shown. The latch includes a cantilever arm 21 that extends into the plug housing 1, and a hook 211 is provided on the lower front end of the cantilever arm 21 to engage with the side of the hook structure 12 away from the hook nose 81. Specifically, the hook structure 12 extends from back to front and hooks onto the hook nose 81 of the socket 8, and the cantilever arm 21 also extends from back to front and hooks onto the upper front of the hook structure 12. Through the backward hooking action of the cantilever arm and the hook structure 12, the hook structure 12 is pressed tightly against the socket 8, thereby preventing it from falling off.

[0023] Example 2 differs from Example 1 in that the secondary locking structure 2 is slidably connected to the plug housing 1. For example... Figure 8 and Figure 9 As shown, the lower rear half of the secondary locking structure 2 is provided with a sliding groove 22. (As indicated...) Figure 5 and Figure 6 As shown, the top of the plug housing 1 is provided with a slide rail 14 that mates with the slide groove 22.

[0024] Furthermore, such as Figure 5 and Figure 6 As shown, two slide rails 14 are symmetrically arranged inside the plug housing 1. The sliding end of the two slide rails 14, i.e. the rear end, is used for the secondary locking structure 2 to slide into the plug housing 1 through the slide groove 22.

[0025] Example 3 differs from Example 2 in that, as Figure 5 and Figure 6 As shown, the ends of the two slide rails 14, i.e., the upper front sides, are connected by a stop block 13. Simultaneously, both ends of the stop block 13 extend to connect with the inner wall of the plug housing 1, thereby fixing the two slide rails 14. The upper middle part of the cantilever arm 21 has a protrusion 212 that engages with the stop block 13. The front side of the protrusion 212 is an inclined surface that can slide with the rear side of the stop block 13; the rear side of the protrusion 212 is a stop surface that engages with the front side of the stop block 13. That is, when the secondary locking structure 2 is slidably inserted into the plug housing 1 through the slide groove 22, the cantilever arm 21 passes under the stop block 13, and the front side of the protrusion 212, being an inclined surface, slides with the stop block 13. At the same time, the cantilever arm 21 is elastic, with a certain margin for vertical movement. During the sliding engagement of the protrusion 212 and the stop block 13, the cantilever arm 21 can deform downwards, thus passing over the stop block 1 and extending into the front side of the plug housing 1. After the protrusion 212 passes the stop 13, the rear side of the protrusion 212 engages with the front side of the stop 13 to prevent the secondary locking structure 2 from easily disengaging. Especially after the socket cover 6 is installed, it further limits the vertical movement of the cantilever arm 21, preventing the secondary locking structure 2 from disengaging. Furthermore, when the rear side of the protrusion 212 engages with the front side of the stop 13, it is in a pre-installed position for the secondary locking structure 2. Figure 12As shown. At this time, hook 211 is located in the hanging groove of hook structure 12, that is, hook 211 is located on the rear side of the bottom of the hanging groove.

[0026] Example 4 differs from Example 3 in that, as Figure 7 As shown, the longitudinal section of the bottom of the hanging groove of the hook structure 12 is approximately triangular. Specifically, the rear side of the bottom of the hanging groove of the hook structure 12 is an inclined surface sloping upwards and forwards. After the plug is inserted into the socket 8, and the socket 8 and the plug housing 1 are hooked together by the hook structure 12 and the hook nose 81, the hook nose 81 extends into the hanging groove of the hook structure 12, pushing the hook 211 outwards. At this time, by pushing the secondary locking structure, the rear inclined surface of the bottom of the hanging groove allows the hook 211 to slide forward past the bottom of the hanging groove. The hook 211 then hooks the side of the bottom of the hanging groove of the hook structure 12 away from the hook nose 81, thereby pulling the hook structure 12 towards the hook nose 81. Figure 13 As shown, this provides a secondary anti-hair loss effect.

[0027] Furthermore, the front side of the bottom of the hook structure 12's groove is a slope that slopes backward from bottom to top. The hook 211 has a slope that mates with this slope. When unlocking, the secondary locking structure slides backward, allowing the hook 211 to slide backward from the front side of the bottom of the groove and disengage from the bottom of the hook structure 12, thus disengaging from the hook structure 12 and unlocking the device.

[0028] Example 5 differs from Example 4 in that the upper side of the plug cover 6 is provided with a backstop protrusion 61, and the lower side of the tail of the secondary locking structure 2 is provided with a sloping stop block 24 that abuts against the backstop protrusion 61.

[0029] Example 6 differs from Example 3 in that the secondary locking structure 2 is further provided with a sliding part 23 for sliding the secondary locking structure 2, and the sliding part 23 is a concave surface with an anti-slip groove.

[0030] Example 7 differs from Example 3 in that, as Figure 11 As shown, the longitudinal section of the plug cover 6 is a rectangular structure with rounded corners; the plug cover 6 has a socket terminal 5 inside; the flat plate structure of the socket terminal 5 is arranged parallel to the diagonal of the rectangular structure. Furthermore, the two edges of the flat plate structure close to the inner wall of the plug cover 6 are rounded to form rounded corners, as shown... Figure 11 As shown, this further reduces the space occupied, thereby reducing the size of the connector.

[0031] Furthermore, such as Figure 4 As shown, the plug cover 6 has mounting brackets 62 on both sides. Figure 3 As shown, the plug housing 1 is provided with a hanging hole 11 that mates with the mounting plate 62.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any modifications to the technical solutions described in the foregoing embodiments, or equivalent substitutions of some or all of the technical features therein, within the spirit and principles of the present utility model, shall not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present utility model, and shall all be included within the protection scope of the present utility model.

Claims

1. A straight-welded automotive connector, characterized in that, It includes a plug housing (1) and a plug cover (6) that are connected to each other, and a secondary locking structure (2) provided between the plug housing (1) and the plug cover (6); the plug housing (1) is provided with a hook structure (12) for hooking and connecting with the socket (8), and the secondary locking structure (2) is provided with a latch that hooks and cooperates with the hook structure (12).

2. The straight-welded automotive connector according to claim 1, characterized in that, The latch includes a cantilever arm (21) that extends into the plug housing (1), and the lower front end of the cantilever arm (21) is provided with a hook (211) that cooperates with the side of the hook structure (12) away from the socket (8) to press the hook structure (12) onto the socket (8).

3. The straight-welded automotive connector according to claim 2, characterized in that, The secondary locking structure (2) is slidably connected to the plug housing (1); the lower side of the secondary locking structure (2) is provided with a slide groove (22), and the plug housing (1) is provided with a slide rail (14) that cooperates with the slide groove (22).

4. The straight-welded automotive connector according to claim 3, characterized in that, Two slide rails (14) are symmetrically arranged inside the plug housing (1), and the upper ends of the two slide rails (14) are connected by a stop block (13).

5. The straight-welded automotive connector according to claim 4, characterized in that, The upper middle part of the cantilever arm (21) is provided with a protrusion (212) that cooperates with the stop block (13). The front side of the protrusion (212) is an inclined surface that can slide with the rear side of the stop block (13); the rear side of the protrusion (212) is a stop plane that cooperates with the front side of the stop block (13).

6. The straight-welded automotive connector according to claim 5, characterized in that, The plug cover (6) is provided with a backstop protrusion (61) on the upper side, and the lower side of the tail of the secondary locking structure (2) is provided with a sloping stop block (24) that abuts against the backstop protrusion (61).

7. The straight-welded automotive connector according to any one of claims 1 to 6, characterized in that, The secondary locking structure (2) is also provided with a sliding part (23) for sliding the secondary locking structure (2), and the sliding part (23) is a concave surface with anti-slip groove.

8. The straight-welded automotive connector according to any one of claims 1 to 6, characterized in that, The socket (8) has a hook (81) on the outside that engages with the hook of the hook structure (12).

9. The straight-welded automotive connector according to any one of claims 1 to 6, characterized in that, The longitudinal section of the plug cover (6) is a rectangular structure with rounded corners; the plug cover (6) is provided with a socket terminal (5); the flat plate structure of the socket terminal (5) is set parallel to the diagonal of the rectangular structure.

10. The straight-welded automotive connector according to any one of claims 1 to 6, characterized in that, The plug cover (6) has a mounting platform (62) on both sides, and the plug housing (1) has a hanging hole (11) that mates with the mounting platform (62).

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