An injection molding device for protecting a wiring harness of a panel

Abstract

The utility model relates to a kind of injection molding device of protective plate connecting wire harness, including injection molding module;The injection molding module includes mutually matched injection molding upper die and injection molding lower die;After the injection molding upper die and injection molding lower die are closed, the inside is formed with forming cavity;Injection molding module is equipped with the injection glue mouth for being linked with forming cavity and the adjusting top block for adjusting the size of forming cavity with movable connection;Injection molding module is also equipped with the wire clamping module for limiting wire harness.The utility model solves the problem that wire harness and hardware terminal riveting cavity, after foreign matter such as glue pouring is infiltrated, lead to the problem of poor contact.This scheme is adopted Injection molding process, reduces the cost of hardware terminal and its hardware terminal processing, greatly reduces material cost.Adopted rubber-coated process solves the problem of low welding efficiency of traditional wire and protective plate.Adopt simple injection molding mold combined with mold insert (wire clamping module) to realize the problem of different number of wire harness compatible use a set of mold.

Description

Technical Field

[0001] This utility model relates to the field of batteries, and in particular to an injection molding device for a protective board connecting wire harness. Background Technology

[0002] Currently, new energy batteries are being used more and more widely in various fields, not only in transportation sectors such as electric vehicles, electric motorcycles, and electric bicycles, but also in industrial and communication fields such as home energy storage, AGVs, and UPS. The ever-expanding application scope of new energy is also constantly increasing the requirements for real-time communication and real-time electrical performance monitoring of new energy batteries. Traditional wiring harnesses and protection boards typically use metal terminals riveted to wires, then inserting the metal terminals into terminal housings to form a sampling wiring harness. The sampling wiring harness is then connected to the protection board via a plug-in connection or direct soldering to the internal metal of the housing. Another method is to directly strip the tin from the wiring harness and solder it to the protection board to form a connection.

[0003] The existing hardware terminals are connected to the protection board by riveting the wire harness into the socket. The riveting process of the wire harness and socket is prone to poor riveting, resulting in voids at the riveting position. When external glue or other impurities seep into the voids at the riveting position, it is easy to cause a large change in the resistance at the riveting position, resulting in poor contact.

[0004] Directly welding the conductors to the protection board via through-holes or surface-mount soldering presents challenges for multi-strand wire harnesses. The flexibility of the conductors makes welding difficult, resulting in low production efficiency and high costs. Conversely, multi-strand insulated wire harnesses suffer from poor mold versatility, lack of compatibility, and high mold costs. Utility Model Content

[0005] To address the aforementioned problems in the prior art, this utility model provides an injection molding device for connecting wire harnesses to a protective plate.

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] An injection molding device for a protective plate connecting wire harness includes an injection molding module; the injection molding module includes a cooperating upper injection mold and a lower injection mold; after the upper injection mold and the lower injection mold are closed, a molding cavity is formed inside; the injection molding module is provided with a glue injection port communicating with the molding cavity and an adjusting top block movably connected to adjust the size of the molding cavity; the injection molding module is also provided with a wire clamping module for limiting the wire harness.

[0008] In one embodiment of this utility model, the injection molding module is provided with an adjustment block inlet that communicates with the molding cavity; the adjustment block inlet is slidably connected to the adjustment top block.

[0009] In one embodiment of this utility model, the adjusting top block includes a guide block and an adjusting block; the upper injection mold is provided with a guide groove on the side opposite to the entrance of the adjusting block, which cooperates with the guide block; the guide block is provided with an adjusting screw; the adjusting block is slidably connected to the entrance of the adjusting block.

[0010] In one embodiment of the present invention, the lower injection mold is provided with a first limiting post; the upper injection mold is provided with a first limiting groove that cooperates with the first limiting post.

[0011] In one embodiment of this utility model, the wire clamping module includes a small wire clamping module and a large wire clamping module arranged at relative intervals; the forming cavity is located between the small wire clamping module and the large wire clamping module.

[0012] In one embodiment of this utility model, the small wire-passing module is provided with a plurality of first wire-passing holes at intervals; the large wire-passing module is provided with a plurality of second wire-passing holes at intervals; the first wire-passing holes and the second wire-passing holes are arranged opposite to each other; the first wire-passing holes and the second wire-passing holes are arranged coaxially.

[0013] In one embodiment of this utility model, the wire harness includes a sheathed wire harness and a bare wire harness; the sheathed wire harness mates with a second wire through hole; and the bare wire harness mates with a first wire through hole.

[0014] In one embodiment of this utility model, the small wire-clamping module includes a first upper wire-clamping block and a first lower wire-clamping block arranged opposite to each other; the small wire-clamping module is provided with a second limiting post that cooperates with the injection molding module; the injection molding module is provided with a second limiting hole that cooperates with the second limiting post.

[0015] In one embodiment of this utility model, the large wire clamping module includes a second upper wire clamping block and a second lower wire clamping block arranged opposite to each other; the large wire clamping module is provided with a third limiting post that cooperates with the injection molding module; the injection molding module is provided with a third limiting hole that cooperates with the third limiting post.

[0016] The beneficial effects of this utility model are: it solves the problems of poor contact caused by gaps in the riveting of wire harnesses and metal terminals, and the infiltration of foreign matter such as potting compound. The injection molding process used in this solution reduces the cost of metal terminals and their processing, significantly lowering material costs. The overmolding process solves the problem of low efficiency in traditional wire-to-protection board welding. The use of a simple injection molding mold combined with mold inserts (wire clamping modules) allows for the use of a single mold for different numbers of wire harnesses, reducing production costs and improving mold compatibility. This solution is applicable to various new energy batteries with different spacing and pin counts. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is an exploded view of the structure of this utility model;

[0019] Figure 2 This utility model is a structural explosion Figure 2 :

[0020] Figure 3 This utility model is a structural explosion Figure 3 .

[0021] Explanation of reference numerals in the attached figures:

[0022] 100. Lower injection mold; 101. Molding cavity; 102. Injection port; 103. Adjusting block inlet; 104. Second limiting hole; 105. Third limiting hole; 110. First limiting post; 200. Upper injection mold; 201. Guide groove; 202. First limiting groove; 210. Adjusting top block; 211. Guide block; 212. Adjusting block; 220. Adjusting screw; 300. Injection module; 31 0. Small wire clamping module; 311. First upper wire clamping block; 312. First lower wire clamping block; 313. First wire through hole; 314. Second limiting post; 320. Large wire clamping module; 321. Second upper wire clamping block; 322. Second lower wire clamping block; 323. Second wire through hole; 324. Third limiting post; 400. Wire harness; 401. Sheathed wire harness; 402. Exposed wire harness; 410. Injection molded colloid. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example:

[0027] like Figure 1 As shown, an injection molding device for a protective board connecting wire harness includes an injection molding module 300; the injection molding module 300 includes a mutually cooperating upper injection mold 200 and lower injection mold 100; after the upper injection mold 200 and lower injection mold 100 are closed, a molding cavity 101 is formed inside; the injection molding module 300 is provided with a glue injection port 102 communicating with the molding cavity 101 and an adjusting top block 210 movably connected to adjust the size of the molding cavity 101; the injection molding module 300 is also provided with a wire clamping module for limiting the wire harness 400.

[0028] In one embodiment of this utility model, the injection molding module 300 is provided with an adjustment block inlet 103 communicating with the molding cavity 101; the adjustment block inlet 103 is slidably connected to the adjustment top block 210. In one embodiment, the injection port 102 and the adjustment block inlet 103 are respectively located at both ends of the molding cavity 101.

[0029] In one embodiment of this utility model, the adjusting top block 210 includes a guide block 211 and an adjusting block 212; the upper injection mold 200 has a guide groove 201 on the side opposite to the adjusting block inlet 103, which cooperates with the guide block 211; the guide block 211 is provided with an adjusting screw 220. The adjusting block 212 is slidably connected to the adjusting block inlet 103; the cooperation between the guide groove 201 and the guide block 211 can better realize the position adjustment of the adjusting top block 210; in one embodiment, the cross-section of the guide groove 201 is inverted T-shaped, which can effectively limit unnecessary displacement of the guide block 211; such as Figure 1 The displacement of the adjusting top block 210 reciprocates along the extension direction of the guide groove 201; the extension direction of the guide groove 201 is from the adjusting block inlet 103 toward the molding cavity 101, and the size of the molding cavity 101 can be adjusted by adjusting the displacement of the top block 210; in one embodiment, the top of the guide groove 201 is open, and the adjusting screw 220 is threadedly connected to the guide block 211, so that the guide block 211 can be abutted against the inner wall of the guide groove 201 to fix the position of the adjusting top block 210.

[0030] In one embodiment, the adjustment block inlet 103 is formed on the upper injection mold 200 and the lower injection mold 100. It is understood that both the upper injection mold 200 and the lower injection mold 100 have partial adjustment block inlets 103, which are then closed to form a complete adjustment block inlet 103. Typically, it is designed so that each of the upper injection mold 200 and the lower injection mold 100 has half an adjustment block inlet 103, which facilitates the installation and removal of the top block 210. In another embodiment, the adjustment block inlet 103 can be formed solely on the upper injection mold 200 or the lower injection mold 100.

[0031] In one embodiment, the injection port 102 is formed on the upper injection mold 200 and the lower injection mold 100. It can be understood that both the upper injection mold 200 and the lower injection mold 100 have partial injection ports 102, which are formed after mold closing to form a complete injection port 102. Typically, it is designed that each of the upper injection mold 200 and the lower injection mold 100 has half of the injection port 102, which facilitates the maintenance and cleaning of the injection port 102. In another embodiment, the injection port 102 can be formed separately on the upper injection mold 200 or the lower injection mold 100.

[0032] In one embodiment of this utility model, the lower injection mold 100 is provided with a first limiting post 110; the upper injection mold 200 is provided with a first limiting groove 202 that cooperates with the first limiting post 110. In one embodiment, two or four first limiting posts 110 are provided, which can better achieve the alignment accuracy when the upper injection mold 200 and the lower injection mold 100 are closed.

[0033] In one embodiment of this utility model, the wire-clamping module includes a small wire-clamping module 310 and a large wire-clamping module 320 arranged at relatively intervals; the forming cavity 101 is located between the small wire-clamping module 310 and the large wire-clamping module 320. It can be understood that the small wire-clamping module 310 and the large wire-clamping module 320 are respectively a sidewall of the forming cavity 101.

[0034] In one embodiment of this utility model, the small wire-clamping module 310 is provided with a plurality of first wire-passing holes 313 at intervals; the large wire-clamping module 320 is provided with a plurality of second wire-passing holes 323 at intervals; the first wire-passing holes 313 and the second wire-passing holes 323 are arranged opposite to each other; the first wire-passing holes 313 and the second wire-passing holes 323 are coaxially arranged. The coaxial arrangement of the first wire-passing holes 313 and the second wire-passing holes 323 facilitates the clamping of the wire harness 400 and ensures the straightness of the wire harness 400 during clamping, providing precise distance limits for subsequent welding; it is understood that the wire harness 400 includes a sheathed wire harness 401 and a bare wire harness 402; the sheathed wire harness 401 cooperates with the second wire-passing holes 323; the bare wire harness 402 cooperates with the first wire-passing holes 313. The insulated wire harness 401 refers to the complete structure of the wire harness 400, including the outer insulation and the inner conductor. The bare wire harness 402 is the conductor after the insulation has been stripped. The diameter of the bare wire harness 402 is smaller than the diameter of the insulated wire harness 401. Therefore, the diameter of the first wire through hole 313 is smaller than the diameter of the second wire through hole 323. Since the insulated wire harness 401 and the bare wire harness 402 are coaxial in a straight line, limiting the coaxial setting of the first wire through hole 313 and the second wire through hole 323 ensures a better docking effect with the wire harness 400. The snap-fit ​​effect is more secure, avoiding leakage of the glue during injection molding.

[0035] In one embodiment of the present invention, the small wire-clamping module 310 includes a first upper wire-clamping block 311 and a first lower wire-clamping block 312 disposed opposite to each other; the small wire-clamping module 310 is provided with a second limiting post 314 that cooperates with the injection molding module 300; the injection molding module 300 is provided with a second limiting hole 104 that cooperates with the second limiting post 314. In one embodiment, the first upper wire clamping block 311 has a second limiting post 314 at one end near the upper injection mold 200, which cooperates with the second limiting hole 104 provided on the upper injection mold 200; two second limiting posts 314 are provided on the first upper wire clamping block 311; the first lower wire clamping block 312 has a second limiting post 314 at one end near the lower injection mold 100, which cooperates with the second limiting hole 104 provided on the lower injection mold 100; two second limiting posts 314 are provided on the first lower wire clamping block 312; the split-structure small wire clamping block can realize the clamping of the wire harness 400 during the mold closing process, which facilitates the installation of the wire harness 400 and the rapid injection molding.

[0036] In one embodiment of this utility model, the large wire clamping module 320 includes a second upper wire clamping block 321 and a second lower wire clamping block 322 disposed opposite to each other; the large wire clamping module 320 is provided with a third limiting post 324 that cooperates with the injection molding module 300; the injection molding module 300 is provided with a third limiting hole 105 that cooperates with the third limiting post 324. In one embodiment, the second upper wire clamping block 321 is provided with a third limiting post 324 that cooperates with the third limiting hole 105 provided on the injection molding upper mold 200 at one end; two third limiting posts 324 are provided on the second upper wire clamping block 321; the second lower wire clamping block 322 is provided with a third limiting post 324 that cooperates with the third limiting hole 105 provided on the injection molding lower mold 100 at one end; two third limiting posts 324 are provided on the second lower wire clamping block 322.

[0037] For wire harnesses 400 of different diameters, the small wire clamping module 310 and the large wire clamping module 320 are used in pairs, and the front and rear order of the small wire clamping module 310 and the large wire clamping module 320 is preferably kept consistent for easy operation. Since the diameter difference between the first wire through hole 313 and the second wire through hole 323 is not significant, it is possible that the front and rear positions of the small wire clamping module 310 and the large wire clamping module 320 may be reversed. In one embodiment, the installation error can be avoided by setting the distance between the second limiting hole 104 and the distance between the third limiting hole 105 to be different. This also avoids incorrect assembly such as the first upper wire clamping block 311 and the second lower wire clamping block 322, or the second upper wire clamping block 321 and the first lower wire clamping block 312.

[0038] See Figure 1 At this point, the wire harness 400 contains 6 wires. After injection molding, it will form an injection-molded colloid 410 containing 6 wire harnesses 400. The adjusting top block 210 is set on the right side. When the actual wire harness 400 to be injected contains 4 wires, the adjusting top block 210 can be moved to the left to block the two wire holes on the wire clamping module, thereby enabling the injection molding of 4 wire harnesses 400. Similarly, the injection molding and adjustment of multiple different wire harnesses 400 can be realized. In one embodiment, by replacing the clamping module, injection molding with different spacing between wire harnesses 400 can be realized to meet the welding requirements of different batteries.

[0039] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An injection molding device for a protective plate connecting wire harness, characterized in that: The system includes an injection molding module (300); the injection molding module (300) includes an upper injection mold (200) and a lower injection mold (100) that cooperate with each other; after the upper injection mold (200) and the lower injection mold (100) are closed, a molding cavity (101) is formed inside; the injection molding module (300) is provided with a glue injection port (102) that communicates with the molding cavity (101) and an adjusting top block (210) that is movably connected to adjust the size of the molding cavity (101); the injection molding module (300) is also provided with a wire clamping module for limiting the wire harness (400).

2. The injection molding device for connecting wire harnesses of a protection plate according to claim 1, characterized in that: The injection molding module (300) is provided with an adjustment block inlet (103) that communicates with the molding cavity (101); the adjustment block inlet (103) is slidably connected to the adjustment top block (210).

3. The injection molding device for connecting wire harnesses to a protective plate according to claim 1, characterized in that: The adjusting top block (210) includes a guide block (211) and an adjusting block (212); the upper injection mold (200) is provided with a guide groove (201) on the side opposite to the adjusting block inlet (103) to cooperate with the guide block (211); the guide block (211) is provided with an adjusting screw (220); the adjusting block (212) is slidably connected to the adjusting block inlet (103).

4. The injection molding device for connecting wire harnesses to a protective plate according to claim 1, characterized in that: The lower injection mold (100) is provided with a first limiting post (110); the upper injection mold (200) is provided with a first limiting groove (202) that cooperates with the first limiting post (110).

5. The injection molding device for connecting wire harnesses to a protective plate according to claim 1, characterized in that: The wire clamping module includes a small wire clamping module (310) and a large wire clamping module (320) arranged at relative intervals; the forming cavity (101) is located between the small wire clamping module (310) and the large wire clamping module (320).

6. The injection molding device for a protective plate connecting wire harness according to claim 5, characterized in that: The small wire-carrying module (310) is provided with a plurality of first wire-passing holes (313) spaced apart; the large wire-carrying module (320) is provided with a plurality of second wire-passing holes (323) spaced apart; the first wire-passing holes (313) and the second wire-passing holes (323) are arranged opposite to each other; the first wire-passing holes (313) and the second wire-passing holes (323) are arranged coaxially.

7. The injection molding device for connecting wire harnesses of a protection plate according to claim 6, characterized in that: The wire harness (400) includes a sheathed wire harness (401) and a bare wire harness (402); the sheathed wire harness (401) is fitted with a second wire hole (323); the bare wire harness (402) is fitted with a first wire hole (313).

8. The injection molding device for connecting wire harnesses of a protection plate according to claim 6, characterized in that: The small wire clamping module (310) includes a first upper wire clamping block (311) and a first lower wire clamping block (312) arranged opposite to each other; the small wire clamping module (310) is provided with a second limiting post (314) that cooperates with the injection molding module (300); the injection molding module (300) is provided with a second limiting hole (104) that cooperates with the second limiting post (314).

9. The injection molding device for connecting wire harnesses of a protection plate according to claim 6, characterized in that: The large wire clamping module (320) includes a second upper wire clamping block (321) and a second lower wire clamping block (322) arranged opposite to each other; the large wire clamping module (320) is provided with a third limiting post (324) that cooperates with the injection molding module (300); the injection molding module (300) is provided with a third limiting hole (105) that cooperates with the third limiting post (324).

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