Multi-layer terminal insert injection molding structure

Abstract

This utility model relates to a multi-layer terminal insert injection molding structure, wherein the structure is an electrical connector, including: a multi-layer terminal component (3), on which multiple terminal pieces (4) are provided, which are fixed in multiple layers by a positioning support structure, and each terminal piece (4) includes several terminal parts (1), each of the terminal parts (1) being fixed in a plastic shell (2) so that the multi-layer terminal component (3) and the plastic shell (2) are integrally positioned and injection molded. This multi-layer terminal insert injection molding structure of the utility model uses a special terminal design, which can effectively realize multi-layer terminal insert injection molding, and the terminal positioning can be achieved without pre-coating between the multi-layer terminals. Positioning can be completed through the combination of mold and terminal shape design, which can effectively avoid the addition of fixing parts and multiple injection molding processes, and has certain application value.

Description

Technical Field

[0001] This utility model relates to the field of electrical connectors for automotive drive motors, and more particularly to a multi-layer terminal structure, specifically a multi-layer terminal insert injection molding structure. Background Technology

[0002] With the rapid development of industries such as 5G communication, new energy vehicles, industrial automation, and consumer electronics, the demand for multi-layer terminal electrical connectors continues to grow. High-end fields (such as high frequency, high speed, and high current transmission) have higher requirements for the precision and miniaturization of multi-layer terminals, thereby driving technological iteration.

[0003] Currently, in the automotive industry, most commercially available multi-layer terminal connectors for motors use independent parts to pre-fix the metal terminals, ensuring relatively stable terminal positions during injection molding. Alternatively, interconnected terminal blocks are used, with the connecting metal between the terminal blocks being punched off during mold injection to achieve fixed terminal positions before injection molding and independent signals between terminals after injection molding. These designs inevitably add cumbersome processes before and after injection molding, resulting in disadvantages in design cost and manufacturing difficulty.

[0004] Therefore, based on the current state of the industry, it is necessary to propose an improvement and optimization scheme to overcome the shortcomings of existing technologies. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a multi-layer terminal insert injection molding structure.

[0006] To achieve the above objectives, the specific injection molding structure of the multi-layer terminal insert of this utility model is as follows:

[0007] The main feature of this multi-layer terminal insert injection molding structure is that the structure is an electrical connector, comprising:

[0008] A multi-layer terminal component is provided with multiple terminal pieces that are fixed in multiple layers by a positioning support structure, and each terminal piece includes several terminal parts. Each terminal part is fixed in a plastic shell so that the multi-layer terminal component and the plastic shell are integrally positioned and injection molded.

[0009] Preferably, the positioning support structure includes a positioning hole, a support clearance hole, and a support positioning hole provided on each of the terminal pieces.

[0010] Preferably, each of the terminal portions is disposed at the edge of each of the terminal members.

[0011] Preferably, the positioning hole is located near the terminal portion.

[0012] Preferably, the support clearance holes are provided on the edge connection portion of the terminal piece, and the support clearance holes provided between each terminal piece are distributed in a staggered vertical structure.

[0013] Preferably, the support clearance hole is trapezoidal in design.

[0014] Preferably, the support clearance hole is rectangular in design.

[0015] Preferably, the support positioning hole is located on the middle connecting part of the terminal piece and is a circular design.

[0016] Preferably, the positioning holes are provided on both the middle connecting portion and the edge connecting portion of the terminal component.

[0017] Preferably, the multilayer terminal component includes at least two of the aforementioned terminal members.

[0018] The multi-layer terminal insert injection molding structure of this utility model uses a special terminal design, which can effectively realize the injection molding of multi-layer terminal inserts. Furthermore, the terminal positioning can be achieved without pre-coating between the multi-layer terminals. Positioning can be completed by matching the mold and the terminal shape design. This can effectively avoid adding fixed parts and multiple injection molding processes, and has certain application value. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the multi-layer terminal insert injection molding structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the multilayer terminal component of this utility model.

[0021] Figure 3 This is another schematic diagram of the multilayer terminal component of this utility model.

[0022] Figure 4 This is a plan view of the multilayer terminal component of this utility model.

[0023] Figure 5 This is a side view of the multilayer terminal component of this utility model.

[0024] Figure Labels

[0025] 1 terminal section

[0026] 1-1 Positioning Hole

[0027] 1-2 Support clearance holes

[0028] 1-3 Support positioning holes

[0029] 2. Plastic casing

[0030] 3 Multilayer terminal components

[0031] 4 terminal components Detailed Implementation

[0032] To more clearly describe the technical content of this utility model, the following description is provided in conjunction with specific embodiments.

[0033] Before describing the embodiments according to the present invention in detail, it should be noted that, in the following, the terms “comprising,” “including,” or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0034] Please see Figures 1 to 5 As shown, the multi-layer terminal insert injection molding structure of this utility model is an electrical connector, comprising:

[0035] The multi-layer terminal component 3 is provided with multiple terminal pieces 4 that are fixed in multiple layers by a positioning support structure, and each terminal piece 4 includes several terminal parts 1. Each terminal part 1 is fixed in a plastic shell 2 so that the multi-layer terminal component 3 and the plastic shell 2 can be integrally positioned and injection molded.

[0036] In a preferred embodiment of the present invention, the positioning support structure includes a positioning hole 1-1, a support clearance hole 1-2, and a support positioning hole 1-3 disposed on each of the terminal pieces 4.

[0037] In a preferred embodiment of the present invention, each of the terminal portions 1 is disposed at the edge position of each of the terminal members 4.

[0038] In a preferred embodiment of the present invention, the positioning hole 1-1 is located near the terminal portion 1.

[0039] In a preferred embodiment of the present invention, the support clearance holes 1-2 are provided on the edge connection portion of the terminal component 4, and the support clearance holes 1-2 provided between each terminal component 4 are distributed in a staggered structure.

[0040] In a preferred embodiment of this utility model, the support clearance holes 1-2 are trapezoidal in design.

[0041] In a preferred embodiment of this utility model, the support clearance holes 1-2 are rectangular in design.

[0042] In a preferred embodiment of this utility model, the support positioning holes 1-3 are provided on the middle connecting part of the terminal piece 4 and are designed as rings.

[0043] In a preferred embodiment of the present invention, the positioning holes 1-1 are provided on both the middle connecting part and the edge connecting part of the terminal component 4.

[0044] In a preferred embodiment of the present invention, the multilayer terminal component 3 includes at least two of the aforementioned terminal members 4.

[0045] like Figures 2 to 4 As shown, the various terminal components 4 of this multi-layer terminal insert injection molding structure are fixed in multiple layers through a positioning support structure. The positioning support structure consists of a positioning hole 1-1, a support clearance hole 1-2, and a support positioning hole 1-3 provided on each terminal component 4. Each positioning hole 1-1 is designed to be located near the terminal functional area of ​​the terminal component 4 (i.e., near the terminal portion 1), which effectively ensures that each terminal portion 1 maintains its positional accuracy after injection molding during actual operation, facilitating the connection between various components. Simultaneously, the support clearance hole 1-2 is designed at the edge connection position of each terminal component 4, and the overall positioning... Located at the middle outer position of the entire terminal piece 4, this design allows the mold positioning pin to be effectively fixed to each terminal part 1. In addition, the support clearance holes 1-2 provided between the upper and lower distributed terminal pieces 4 are arranged in a staggered structure, and the support clearance holes 1-2 are not completely in the same plane. Furthermore, the support positioning holes 1-3 are designed on the middle connecting part of the terminal piece 4, and are located at the center of the entire terminal piece 4. The ring design can also better achieve effective positioning between the multi-layer terminal pieces 4, thereby effectively preventing displacement between the terminal parts 1 on the upper and lower terminal pieces 4 after injection molding of double / multi-layer arranged terminals, thus avoiding contact.

[0046] Therefore, the multi-layer terminal insert injection molding structure of this technical solution, through the positioning holes 1-1, support clearance holes 1-2 and support positioning holes 1-3 designed on each terminal 4, with their special positions and structural design, enables the multi-layer stacked terminal 4 to effectively achieve multi-layer positioning support, avoiding the multiple injection molding processes required for pre-fixation and complex processes between terminal blocks, effectively improving the accurate positioning between the terminal part 1 and the injection mold. In addition, in actual applications, each of the terminal parts 1 actually uses metal terminals, and each metal terminal is used to connect and transmit signals. After the entire multi-layer terminal component 3 is formed by multiple terminal parts 4, it is fixed by the plastic shell 2, so that the overall positioning injection molding can be completed by the mold.

[0047] The multi-layer terminal insert injection molding structure of this utility model uses a special terminal design, which can effectively realize the injection molding of multi-layer terminal inserts. Furthermore, the terminal positioning can be achieved without pre-coating between the multi-layer terminals. Positioning can be completed by matching the mold and the terminal shape design. This can effectively avoid adding fixed parts and multiple injection molding processes, and has certain application value.

[0048] In this specification, the present invention has been described with reference to specific embodiments thereof. However, it will be apparent that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, the specification and drawings should be considered illustrative rather than restrictive.

Claims

1. A multi-layer terminal insert injection molded structure, characterized by, The structure described is an electrical connector, comprising: The multi-layer terminal component (3) is provided with multiple terminal pieces (4) that are fixed in multiple layers by a positioning support structure, and each terminal piece (4) includes several terminal parts (1). Each terminal part (1) is fixed in a plastic shell (2) so that the multi-layer terminal component (3) and the plastic shell (2) can be integrally positioned and injection molded.

2. The multi-layer terminal insert-molded structure of claim 1, wherein, The positioning support structure includes a positioning hole (1-1), a support clearance hole (1-2), and a support positioning hole (1-3) provided on each of the terminal pieces (4).

3. The multi-layer terminal insert-molded structure of claim 2, wherein, Each of the aforementioned terminal portions (1) is located at the edge of each of the aforementioned terminal pieces (4).

4. The multi-layer terminal insert-molded structure of claim 3, wherein, The positioning hole (1-1) is located near the terminal part (1).

5. The multi-layer terminal insert-molded structure of claim 2, wherein, The support clearance holes (1-2) are provided on the edge connection part of the terminal (4), and the support clearance holes (1-2) provided between each terminal (4) are distributed in an up-down staggered structure.

6. The multi-layer terminal insert-molded structure of claim 2, wherein, The aforementioned support clearance holes (1-2) are trapezoidal in design.

7. The multi-layer terminal insert-molded structure of claim 2, wherein, The aforementioned support clearance holes (1-2) are rectangular in design.

8. The multi-layer terminal insert-molded structure of claim 2, wherein, The support positioning hole (1-3) is provided on the middle connecting part of the terminal piece (4) and is a circular design.

9. The multi-layer terminal insert-molded structure of claim 2, wherein, The terminal piece (4) is provided with positioning holes (1-1) on both the middle connecting part and the edge connecting part.

10. The multi-layer terminal insert-molded structure of any one of claims 1 to 9, wherein, The multi-layer terminal component (3) comprises at least two of the terminal components (4).

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