An injection molded wire harness and a joint injection mold thereof

Abstract

The utility model discloses a kind of injection molding type wire harness and its joint injection molding mould, including wire harness body, the one end of wire harness body is fixedly connected with injection molding joint, to insulating protection wire harness electric joint and realize stable insertion, the other end of wire harness body is fixedly connected with fixed end, to cooperate injection molding joint and strengthen the use intensity of wire harness body.The utility model uses injection molding to wrap the joint of wire harness, to improve the intensity of wire harness joint in use, and cooperatively provided with reinforcing portion, further improve the structural stability, durability and reliability of entire injection molding type wire harness whole, and set corresponding injection molding mould, and set corresponding positioning structure and cooling structure in its inside, so that injection molding mould can be quickly fixed corresponding when injection molding processing, and improve the injection efficiency of wire harness joint, ensure the uninterrupted processing of production line.

Description

Technical Field

[0001] This utility model relates to the field of wire harness application technology, and in particular to an injection molded wire harness and its connector injection mold. Background Technology

[0002] In the automotive manufacturing industry, wiring harnesses are a crucial component connecting various electronic parts, and their performance directly affects the normal operation of the vehicle. Traditional automotive wiring harnesses often use bundling and protective sheathing. However, this structure is prone to loosening during vehicle operation, leading to poor wire contact. Furthermore, it offers poor waterproofing and dustproofing, making it susceptible to damage from external environmental factors and shortening the lifespan of the wiring harness.

[0003] Currently, injection-molded wire harnesses fix the wires together through injection molding, which solves some of the problems of traditional wire harnesses to a certain extent. However, existing injection-molded wire harnesses still have shortcomings in structural design. For example, after the wire harness is plugged in and fixed, it generally needs to be bent, which can cause bending damage at the joint and affect the service life of the wire harness. At the same time, the mold structure designed for injection molding is relatively complex, which increases the overall processing cost. Furthermore, the wire harness cannot be molded quickly during injection molding, thus reducing injection molding efficiency. Therefore, this utility model proposes an injection-molded wire harness and its joint injection mold. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an injection mold for an injection-molded wire harness and its connector, so as to solve the problems of easy damage, reduced lifespan and high mold cost, which reduce injection efficiency mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: providing an injection mold for an injection-molded wire harness and its connector, including a wire harness body, one end of which is fixedly connected to an injection-molded connector to insulate and protect the conductive connector of the wire harness and achieve stable insertion. The other end of the wire harness body is fixedly connected to a fixed end to cooperate with the injection-molded connector to enhance the strength of the wire harness body.

[0006] The present invention is further configured such that: the injection joint includes a transition portion, the transition portion is generally arranged in a trapezoidal shape, and anti-slip strips are symmetrically fixedly connected to both sides of the transition portion, and multiple anti-slip strips are arranged in sequence at equal intervals.

[0007] The above technical solution facilitates quick and easy installation of injection molding joints by using anti-slip strips.

[0008] The present invention is further configured such that: the injection molding connector further includes a plug-in portion fixedly connected to the end face of the transition portion, the plug-in portion being an integrally formed conductive connector and injection molding shell, and protrusions being symmetrically fixedly connected to the two arc surfaces of the plug-in portion.

[0009] The above technical solution facilitates the use of injection-molded plugs to protect the internal conductive connectors, while the use of protrusions makes it easy to push in or pull out during installation as needed.

[0010] The present invention is further configured such that: the fixed end includes a damage-resistant step installed on the end face of the wire harness body, and a reinforcing plate is fixedly connected to the end face of the damage-resistant step.

[0011] Through the above technical solutions, practical anti-damage steps and reinforcement plates can improve the overall structural stability, durability and reliability of the wire harness.

[0012] An injection mold for a connector of an injection-molded wire harness includes a mold body, characterized in that: the mold body includes a matching upper mold and a lower mold; The upper mold and the lower mold are fitted with cavities A and B that fit the injection joints. Cooling grooves A and B are respectively provided inside the upper mold and the lower mold and around the cavity A and cavity B. Connection ports A and B are respectively provided on the end faces of the cooling grooves A and B. Sealing caps A and B are respectively sealed inside the cooling grooves A and B.

[0013] Through the above technical solution, the wire harness connector can be molded using cavity A and cavity B, and the cooling tanks A and B can accelerate the molding efficiency of the internal fluid, thereby improving the overall injection molding efficiency.

[0014] The present invention is further configured such that: an injection hole is provided at the center of the cavity A, and two symmetrically arranged positioning posts are fixedly connected to the end face of the cavity A, and the two positioning posts are respectively inserted into the conductive connector of the injection joint.

[0015] The above technical solution facilitates the rapid injection of fluid into the interior of cavities A and B using injection holes, while positioning pins are used to position and fix the inserted wire harness conductive connectors, ensuring the quality after injection molding.

[0016] The present invention is further configured such that: one side of each of the two positioning columns is fixedly connected with a locking block, and the two locking blocks are respectively positioned and inserted into the corresponding slots opened in the lower mold.

[0017] The above technical solution facilitates rapid positioning and mold closing using locking blocks and slots when closing the upper and lower molds, thereby improving the injection molding efficiency of wire harness connectors.

[0018] The beneficial effects of this utility model are as follows: 1. The present invention proposes an injection molded wire harness and its connector injection mold, which improves the strength of the wire harness connector in use by using injection molding to wrap the connector of the wire harness. In addition, it is equipped with a reinforcing part to further improve the overall structural stability, durability and reliability of the injection molded wire harness. 2. The injection mold for injection-molded wire harness and its connector proposed in this utility model, by setting a corresponding injection mold and setting a corresponding positioning structure and cooling structure inside it, enables the injection mold to be quickly fixed during injection molding, and improves the injection efficiency of wire harness connectors, ensuring uninterrupted processing of the production line. Attached Figure Description

[0019] Figure 1 This is a structural diagram of an injection-molded wire harness according to the present invention; Figure 2 This is a schematic diagram illustrating the processing of an injection-molded wire harness and injection mold according to the present invention. Figure 3 This is a structural diagram of an injection mold for a connector of an injection-molded wire harness according to the present invention; Figure 4 This is a first exploded view of the injection mold for the connector of an injection-molded wire harness according to this utility model; Figure 5 This is a structural diagram of the lower mold in an injection mold for a connector of an injection-molded wire harness according to this utility model; Figure 6 This is a second exploded view of the injection mold for the connector of an injection-molded wire harness according to this utility model; Figure 7 This is a structural diagram of the upper mold in the injection mold of the connector of an injection-molded wire harness according to this utility model.

[0020] In the diagram: 1. Wire harness body; 2. Injection connector; 21. Transition section; 22. Insertion section; 23. Anti-slip strip; 24. Protrusion; 3. Fixed end; 31. Damage-proof step; 32. Reinforcing plate; 4. Mold body; 41. Upper mold; 411. Cavity A; 412. Injection hole; 413. Locking block; 414. Positioning post; 415. Cooling tank A; 416. Connection port A; 417. Sealing cover A; 42. Lower mold; 421. Cavity B; 422. Slot; 423. Cooling tank B; 424. Connection port B; 425. Sealing cover B. Detailed Implementation

[0021] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0022] like Figure 1 As shown, an injection-molded wire harness includes a wire harness body 1. One end of the wire harness body 1 is fixedly connected to an injection-molded connector 2 to insulate and protect the conductive connector of the wire harness and achieve stable insertion. The injection-molded connector 2 includes a transition portion 21, which is generally trapezoidal in shape. Anti-slip strips 23 are symmetrically fixedly connected to both sides of the transition portion 21. Multiple anti-slip strips 23 are arranged in a series of equal-distance increments to facilitate quick insertion and fixation of the entire injection-molded connector 2 by the workers using the anti-slip strips 23, thus improving the convenience of installation. The injection-molded connector 2 also includes a plug-in portion 22 fixedly connected to the end face of the transition portion 21. The plug-in portion 22 is an integral part of the conductive connector and the injection-molded shell. Protrusions 24 are symmetrically fixedly connected to the two arc surfaces of the plug-in portion 22 to facilitate injection molding protection of the internal conductive connector. At the same time, the protrusions 24 facilitate pushing or pulling out as needed during installation. The other end of the wire harness body 1 is fixedly connected to a fixed end 3 to cooperate with the injection-molded connector 2 to enhance the strength of the wire harness body 1. The fixed end 3 includes a damage-resistant step 31 installed on the end face of the wire harness body 1. A reinforcing plate 32 is fixedly connected to the end face of the damage-resistant step 31. The practical damage-resistant step 31 and the reinforcing plate 32 can improve the overall structural stability, durability and reliability of the wire harness.

[0023] like Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, an injection mold for a connector of an injection-molded wire harness includes a mold body 4. The mold body 4 includes an upper mold 41 and a lower mold 42 that are adapted to each other. The upper mold 41 and the lower mold 42 are provided with cavities A411 and B421 that are adapted to fit the injection connector 2, for injection molding of the inserted injection connector 2. An injection hole 412 is provided at the center of the cavity A411 to facilitate the injection fluid from the outside to enter the internal molding space through the injection hole 412.

[0024] like Figure 4 and Figure 6 As shown, two symmetrically arranged positioning posts 414 are fixedly connected to the end face of cavity A411. Each of the two positioning posts 414 has a locking block 413 fixedly connected to one side. The two locking blocks 413 are respectively positioned and inserted into the corresponding slots 422 of the lower mold 42. This facilitates quick positioning and mold closing when the upper mold 41 and the lower mold 42 are closed, thereby improving the injection molding efficiency of the wire harness connector. The two positioning posts 414 are respectively inserted into the conductive connector of the injection connector 2, which facilitates the rapid injection of fluid into the cavity A411 and cavity B421 through the injection hole 412. At the same time, the positioning posts 414 are used to position and fix the inserted wire harness conductive connector to ensure the quality after injection molding.

[0025] like Figures 4-7 As shown, cooling grooves A415 and B423 are respectively provided inside the upper mold 41 and the lower mold 42, and are located around the cavities A411 and B421. Connection ports A416 and B424 are respectively provided on the end faces of the cooling grooves A415 and B423. Sealing caps A417 and B425 are respectively sealed inside the cooling grooves A411 and B423. The wire harness connectors can be molded using the cavities A411 and B421, and the cooling grooves A415 and B423 can accelerate the molding efficiency of the internal fluid, thereby improving the overall injection molding efficiency.

[0026] In use, the wire harness connector is first placed into the cavity A411, and its conductive connector is fixed by inserting it into the positioning post 414. The upper mold 41 and the lower mold 42 are then locked together by the corresponding locking block 413 and the locking groove 422. Finally, fluid is injected through the injection hole 412, and the connector is quickly formed under the action of the cooling groove A415 and the cooling groove B423 inside the upper mold 41 and the lower mold 42, thus completing the injection molding process of the wire harness connector. The processed injection molded connector 2 can improve the stability of the connector during insertion and the protection effect in the later stage.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An injection-molded wire harness, comprising a wire harness body (1), characterized in that: One end of the wire harness body (1) is fixedly connected to an injection-molded connector (2) to insulate and protect the conductive connector of the wire harness and to achieve stable insertion. The other end of the wire harness body (1) is fixedly connected to a fixed end (3) to cooperate with the injection molding connector (2) to enhance the strength of the wire harness body (1).

2. The injection-molded wire harness according to claim 1, characterized in that: The injection joint (2) includes a transition part (21), which is generally arranged in a trapezoidal shape. Anti-slip strips (23) are symmetrically fixedly connected to both sides of the transition part (21), and multiple anti-slip strips (23) are arranged in a sequentially equidistant manner.

3. The injection-molded wire harness according to claim 2, characterized in that: The injection joint (2) also includes a plug-in part (22) fixedly connected to the end face of the transition part (21). The plug-in part (22) is an integral part of the conductive connector and the injection shell. The two sides of the plug-in part (22) are symmetrically connected with protrusions (24).

4. The injection-molded wire harness according to claim 3, characterized in that: The fixed end (3) includes a damage-resistant step (31) installed on the end face of the wire harness body (1), and a reinforcing plate (32) is fixedly connected to the end face of the damage-resistant step (31).

5. An injection mold for a connector of an injection-molded wire harness as described in any one of claims 1-4, comprising a mold body (4), characterized in that: The mold body (4) includes a matching upper mold (41) and a lower mold (42). The upper mold (41) and the lower mold (42) are fitted with cavities A (411) and B (421) that fit the injection joint (2). Cooling grooves A (415) and B (423) are respectively provided inside the upper mold (41) and the lower mold (42) and around the cavity A (411) and cavity B (421). Connection ports A (416) and B (424) are respectively provided on the end faces of the cooling grooves A (415) and B (423). Sealing caps A (417) and B (425) are respectively sealed inside the cooling grooves A (415) and B (423).

6. The injection mold for a connector of an injection-molded wire harness according to claim 5, characterized in that: The cavity A (411) has an injection hole (412) at its center. Two symmetrically arranged positioning posts (414) are fixedly connected to the end face of the cavity A (411). The two positioning posts (414) are respectively inserted into the conductive connector of the injection joint (2).

7. The injection mold for a connector of an injection-molded wire harness according to claim 6, characterized in that: Each of the two positioning posts (414) is fixedly connected to a locking block (413) on one side, and the two locking blocks (413) are respectively positioned and inserted into the corresponding slots (422) of the lower mold (42).

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