Female end connector assembly

Abstract

The utility model discloses a female end connector assembly, which comprises a sheath body, a terminal assembly, a middle island structure formed in the sheath body and a PLR structure matched with the middle island structure, a clamping arm is arranged on the side wall, facing a connecting part, of a plug board of the PLR structure, and one end, far away from a main body, of the clamping arm is matched with the connecting part in a clamping manner; and the other end of the clamping arm extends into an operation hole formed in the cross beam in a suspending manner, so that unlocking between the PLR structure and a middle island structure of the female end connector assembly can be realized by shifting the clamping arm in the operation hole, the PLR structure can be disassembled without using an auxiliary tool, and repair of the PLR structure and replacement of a terminal assembly are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a female connector assembly. Background Art

[0002] China's new energy vehicle industry has experienced rapid development in the past few years and is moving from the embryonic stage to the growth stage. Its ownership has increased by more than 9 times in 5 years. At present, due to technological and industrial changes, new energy vehicles have become the backbone of the transformation and upgrading of the automotive industry, and the new energy vehicle industry has also ushered in unprecedented development opportunities. The demand for power transmission in automobiles has greatly increased, and the application field of low-voltage power connectors in cars has also been expanded.

[0003] PLR (Primary lock reinforce) is a terminal secondary locking mechanism used to strengthen the primary self-locking mechanism of the terminal assembly. Specifically, after the terminal assembly is installed in the sheath, the primary locking mechanism provided on the sheath is used to achieve the primary locking of the terminal assembly, and the secondary locking mechanism provided on the outer side of the primary self-locking mechanism is further used to achieve the secondary locking of the terminal assembly, so as to prevent the withdrawal of the terminal assembly due to non-human operation during use. The PLR ​​structure of the low-voltage power connector products currently on the market is complex, and tools are required to withdraw the PLR, which is not easy to repair. Therefore, there is an urgent need to provide a PLR structure and connector with a simple structure and easy disassembly. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a female connector assembly to solve the problem that the PLR ​​structure of existing connector products is complex, tools are needed to remove the PLR, and it is not easy to repair.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a female connector assembly, including a sheath body, a terminal assembly, a center island structure formed inside the sheath body, and a PLR structure arranged in cooperation with the center island structure, wherein the center island structure is composed of a plurality of terminal mounting parts extending along the width direction of the sheath body, different terminal mounting parts are arranged at intervals along the height direction of the sheath body, and slots are formed between different terminal mounting parts, a plurality of the terminal assemblies are arranged at intervals inside the terminal mounting part along the extension direction of the terminal mounting part, and a plurality of terminals for locking the plurality of terminal assemblies at one time are formed on the side of the terminal mounting part facing the slot. The cantilever of the PLR ​​structure includes a frame-shaped main body and a crossbeam formed on the inner side of the main body along the width direction of the sheath body, and at least one plug-in board is extended on the side of the crossbeam facing the island structure. After the PLR ​​structure is connected with the island structure, the plug-in board is plugged into the corresponding slot and pressed on the outer sides of several cantilevers to achieve secondary locking of the terminal assembly; different terminal mounting parts are connected by a connecting part so that the slot forms a closed cavity structure, and a clamping arm is provided on the side wall of the plug-in board facing the connecting part, and one end of the clamping arm away from the main body is clamped with the connecting part, and the other end is cantilevered into the operating hole opened on the crossbeam.

[0006] In some embodiments, the middle portion of the clamping arm is connected to the side wall of the plug board via a fulcrum.

[0007] In some embodiments, the other end of the clamping arm is not higher than the end surface of the main body.

[0008] In some embodiments, a retaining ring is circumferentially disposed on the outer edge of the main body, and the retaining ring is disposed around the outer side of the island structure after the PLR ​​structure is connected with the island structure.

[0009] In some embodiments, a pre-installation groove and a locking groove are sequentially provided on the inner wall of the connecting portion on the insertion path of the PLR ​​structure. During the process of installing the PLR ​​structure into the island structure, the clamping arm is successively engaged with the pre-installation groove and the locking groove to realize the positioning of the pre-installation position and the locking position of the PLR ​​structure.

[0010] In some embodiments, two clamping arms are provided, and the two clamping arms are symmetrically arranged on both sides of the plug board.

[0011] In some embodiments, a plurality of the plug boards are provided, and different plug boards are arranged at intervals, and two clamping arms are respectively provided on the two outermost plug boards.

[0012] In some embodiments, two terminal mounting parts are provided, and the two terminal mounting parts have one side of the cantilever arranged opposite to each other, and the plug board is arranged vertically to the terminal mounting part. When the plug board is inserted into the slot, the top and bottom of the plug board are respectively pressed on the outside of the cantilevers of the two terminal mounting parts.

[0013] In some embodiments, the terminal mounting portion forms a positioning groove on the outer side of at least one of the cantilevers for positioning the insertion of the plug board.

[0014] In some embodiments, a sealing ring is provided on the outer side of the island structure.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model provides a clamping arm on the side wall of the plug-in board of the PLR ​​structure facing the connecting part, one end of the clamping arm away from the main body is clamped with the connecting part, and the other end is cantilevered into an operating hole opened on the crossbeam, so that the PLR ​​structure and the island structure of the female connector assembly can be unlocked by toggling the clamping arm in the operating hole, and the PLR ​​structure can be disassembled without using auxiliary tools, which facilitates the repair of the PLR ​​structure and the replacement of the terminal assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0017] Figure 1 This is an exploded schematic diagram of the female connector assembly provided by the utility model;

[0018] Figure 2 for Figure 1 A cross-sectional view of the female connector assembly after assembly;

[0019] Figure 3 It is a structural schematic diagram of the female connector assembly when the PLR ​​structure is in the pre-installed position;

[0020] Figure 4 for Figure 1 A schematic diagram of the structure of the sheath body in the female connector assembly shown;

[0021] Figure 5 for Figure 1 A schematic diagram of the structure of the PLR ​​structure in the female connector assembly shown;

[0022] Figure 6 It is a schematic diagram of the cooperation between the PLR ​​structure and the sheath body when the PLR ​​structure is in the pre-installed position;

[0023] Figure 7It is a schematic diagram of the cooperation between the PLR ​​structure and the sheath body when the PLR ​​structure is in the locked position.

[0024] The following are marked in the figure:

[0025] 1. The width direction of the sheath body; 2. The height direction of the sheath body; 3. The length direction of the sheath body;

[0026] 10. Sheath body;

[0027] 20. island structure; 201. terminal mounting portion; 202. slot; 203. cantilever; 204. connecting portion; 205. pre-installed slot; 206. locking slot; 207. positioning slot;

[0028] 30. PLR structure; 301. Main body; 302. Crossbeam; 303. Plug-in board; 304. Clamping arm; 305. Operating hole; 306. Fulcrum; 307. Retaining ring;

[0029] 40, terminal assembly; 401, large terminal assembly; 402, small terminal assembly;

[0030] 50. Sealing ring. DETAILED DESCRIPTION

[0031] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0032] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0033] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0034] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0035] A female connector assembly, such as Figure 1-Figure 7As shown, it includes a sheath body 10, a terminal assembly 40, an island structure 20 formed inside the sheath body 10, and a PLR structure 30 arranged in cooperation with the island structure 20. A sealing ring 50 is sleeved on the outer side of the island structure 20. After the female connector assembly and the male connector assembly are plugged in and matched, the sealing between the two is achieved through the sealing ring 50. The island structure 20 is composed of a plurality of terminal mounting parts 201 extending along the width direction 1 of the sheath body. Different terminal mounting parts 201 are arranged at intervals along the height direction 2 of the sheath body, and slots 202 are formed between different terminal mounting parts 201. It should be noted here that the sheath body 10 is provided with wire holes corresponding to the plurality of terminal mounting parts 201. The terminal assembly 40 is inserted into the terminal mounting part 201 after passing through the wire holes, and the cable part connected to the terminal assembly 40 is accommodated in the wire holes. A plurality of terminal assemblies 40 are arranged at intervals inside the terminal mounting portion 201 along the extension direction of the terminal mounting portion 201, and a plurality of cantilevers 203 for locking the plurality of terminal assemblies 40 are formed on the side of the terminal mounting portion 201 facing the slot 202. After the terminal assembly 40 is installed in the terminal mounting portion 201, the terminal assembly 40 is locked once by the cantilever 203 arranged on the terminal mounting portion 201.

[0036] like Figure 5 As shown, the PLR ​​structure 30 includes a frame-shaped main body 301 and a crossbeam 302 formed on the inner side of the main body 301 along the width direction 1 of the sheath body. At least one plug-in board 303 is extended on the side of the crossbeam 302 facing the island structure 20. After the PLR ​​structure 30 and the island structure 20 are connected, the plug-in board 303 is plugged into the corresponding slot 202 and pressed on the outer side of the plurality of cantilevers 203 to achieve secondary locking of the terminal assembly 40.

[0037] like Figure 2-Figure 4As shown, different terminal mounting parts 201 are connected by connecting parts 204 so that the slot 202 forms a closed cavity structure. It should be noted here that the connecting part 204, the different terminal mounting parts 201 and the sheath body 10 are integrally injection molded to reduce the manufacturing cost of the female connector assembly of the utility model. A clamping arm 304 is provided on the side wall of the plug board 303 facing the connecting part 204. The middle part of the clamping arm 304 is connected to the side wall of the plug board 303 through a fulcrum 306 to form a lever-type structure. One end of the clamping arm 304 away from the main body 301 is clamped with the connecting part 204, and the other end is cantilevered into the operating hole 305 opened on the beam 302. By manually moving the clamping arm 304 in the operating hole 305, the PLR ​​structure 30 and the island structure 20 of the female connector assembly can be unlocked. The PLR ​​structure can be disassembled without using auxiliary tools, which is convenient for the repair of the PLR ​​structure and the replacement of the terminal assembly. Furthermore, in order to prevent the clamping arm 304 from interfering with the male connector assembly when the female connector assembly and the male connector assembly are plugged in, the other end of the clamping arm 304 should not be higher than the end surface of the main body 301 .

[0038] In one embodiment, if Figure 5 As shown, a retaining ring 307 is circumferentially arranged on the outer edge of the main body 301. The retaining ring 307 is arranged around the outer side of the island structure 20 after the PLR ​​structure 30 is connected with the island structure 20. The arrangement of the retaining ring 307 can, on the one hand, position the installation of the PLR ​​structure 30, and on the other hand, prevent the PLR ​​structure 30 from shaking after the PLR ​​structure 30 is connected with the island structure 20, thereby improving the stability of the female connector assembly of the utility model. Furthermore, in order to ensure the sealing effect after the female connector assembly and the male connector assembly are plugged in, the outer surface of the sealing ring 50 should protrude from the outer surface of the retaining ring 307 in the radial direction.

[0039] In one embodiment, if Figure 4 As shown, the inner wall of the connecting portion 204 is provided with a pre-installed groove 205 and a locking groove 206 in sequence on the insertion path of the PLR ​​structure 30. When the PLR ​​structure 30 is installed into the island structure 20, the clamping arm 304 is successively engaged with the pre-installed groove 205 and the locking groove 206 to realize the positioning of the pre-installed position and the locking position of the PLR ​​structure 30. When the PLR ​​structure 30 is in the pre-installed position, the plug-in board 303 of the PLR ​​structure 30 and the plurality of cantilevers 203 are independent of each other. For details, please refer to Figure 6 At this time, the crimped terminal assembly 40 is loaded into the terminal mounting portion 201, and the terminal assembly 40 is locked once by the cantilever 203 provided on the terminal mounting portion 201; then, the PLR ​​structure 30 is pushed to be in the locked position, for details, please refer to Figure 7At this time, the plug board 303 of the PLR ​​structure 30 is pressed against the outside of the plurality of cantilevers 203 to achieve secondary locking of the terminal assembly 40, thereby preventing the terminal assembly from being withdrawn due to non-human operation during use.

[0040] In one embodiment, if Figure 2 , 3 and Figure 5 As shown, there are two clamping arms 304 , and the two clamping arms 304 are symmetrically arranged on both sides of the plug board 303 . The arrangement of the two clamping arms 304 can further enhance the stability of the PLR ​​structure 30 and the island structure 20 after being connected in coordination.

[0041] Furthermore, if Figure 2 and Figure 3 As shown, a plurality of plug boards 303 are provided, and different plug boards 303 are arranged at intervals, and two clamping arms 304 are respectively provided on the two plug boards 303 located at the outermost sides. In this embodiment, two terminal mounting parts 201 are provided, and the two terminal mounting parts 201 are arranged opposite to each other on one side with the cantilever 203, and the plug boards 303 are arranged vertically to the terminal mounting parts 201. When the plug boards 303 are inserted into the slots 202, the top and bottom of the plug boards 303 are respectively pressed on the outer sides of the cantilever 203 of the two terminal mounting parts 201.

[0042] In one embodiment, if Figure 4 As shown, the terminal mounting portion 201 forms a positioning groove 207 on the outer side of at least one cantilever 203 for positioning the insertion of the plug board 303, thereby guiding and positioning the insertion of the plug board 303 of the PLR ​​structure 30. In this embodiment, the terminal assembly 40 includes a large terminal assembly 401 and a small terminal assembly 402. Figure 1 and Figure 4 As shown, the positioning groove 207 is preferably set on the outer side of the cantilever 203 corresponding to the small terminal assembly 402, so as to guide and position the insertion of the plug board 303 of the PLR ​​structure 30 without affecting the size of the female connector assembly of the utility model.

[0043] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A female connector assembly, comprising a sheath body, a terminal assembly, an island structure formed inside the sheath body, and a PLR structure arranged in cooperation with the island structure, wherein the island structure is composed of a plurality of terminal mounting parts extending along the width direction of the sheath body, different terminal mounting parts are arranged at intervals along the height direction of the sheath body, and slots are formed between different terminal mounting parts, a plurality of terminal assemblies are arranged at intervals inside the terminal mounting part along the extension direction of the terminal mounting part, and a plurality of cantilevers for locking a plurality of terminal assemblies at one time are formed on one side of the terminal mounting part facing the slot, characterized in that: The PLR ​​structure includes a frame-shaped main body and a crossbeam formed on the inner side of the main body along the width direction of the sheath body, and at least one plug-in board is extended on the side of the crossbeam facing the island structure. After the PLR ​​structure is connected with the island structure, the plug-in board is plugged into the corresponding slot and pressed on the outer side of the plurality of cantilevers to achieve secondary locking of the terminal assembly. Different terminal mounting parts are connected through a connecting part so that the slot forms a closed cavity structure. A clamping arm is provided on the side wall of the plug board facing the connecting part. One end of the clamping arm away from the main body is clamped with the connecting part, and the other end is cantilevered into the operating hole opened on the beam.

2. A female connector assembly according to claim 1, characterized in that: The middle part of the clamping arm is connected to the side wall of the plug board through a fulcrum.

3. A female connector assembly according to claim 1, characterized in that: The other end of the clamping arm is not higher than the end surface of the main body.

4. A female connector assembly according to claim 1, characterized in that: A retaining ring is circumferentially arranged on the outer edge of the main body. After the PLR ​​structure is connected with the island structure, the retaining ring is arranged around the outer side of the island structure.

5. A female connector assembly according to claim 1, characterized in that: A pre-installation groove and a locking groove are sequentially arranged on the inner wall of the connecting part on the insertion path of the PLR ​​structure. When the PLR ​​structure is installed into the island structure, the clamping arm is successively engaged with the pre-installation groove and the locking groove to realize the positioning of the pre-installation position and the locking position of the PLR ​​structure.

6. A female connector assembly according to claim 1, characterized in that: The two clamping arms are provided, and the two clamping arms are symmetrically arranged on both sides of the plug board.

7. A female connector assembly according to claim 6, characterized in that: There are multiple plug-in boards, and different plug-in boards are arranged at intervals. The two clamping arms are respectively arranged on the two outermost plug-in boards.

8. A female connector assembly according to claim 7, characterized in that: The terminal mounting parts are provided with two, and the two terminal mounting parts have one side of the cantilever and are arranged opposite to each other. The plug board is arranged vertically to the terminal mounting parts. When the plug board is inserted into the slot, the top and bottom of the plug board are respectively pressed on the outside of the cantilevers of the two terminal mounting parts.

9. A female connector assembly according to claim 8, characterized in that: The terminal mounting portion forms a positioning groove on the outer side of at least one of the cantilevers for positioning the insertion of the plug board.

10. A female connector assembly according to claim 1, characterized in that: A sealing ring is sleeved on the outer side of the central island structure.

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