A superimposed copper bar injection molding insert structure

Abstract

The utility model relates to a kind of superimposed copper bar injection moulding insert structure, including multilayer copper bar structure and primary injection block structure, multilayer copper bar structure includes upper layer copper bar body structure, middle layer copper bar body structure and bottom layer copper bar body structure, primary injection connecting block structure includes the arc-shaped bearing injection body, outer extension body, the carding groove body structure connected with bearing injection body is set on middle layer copper bar body structure, the carding groove body structure includes the outside connection boss being equipped in the outside of middle layer copper bar body structure and the connecting groove being equipped in the outside of middle layer copper bar body structure.In the recess of 1.5mm wide, 3mm deep on one side of middle copper bar, the recess boss of 1.5mm wide, 3mm deep is added on the other side, and then the injection of primary injection block is carried out.Overcoat force of primary injection block is enhanced, and sliding during overall injection is avoided.Meanwhile, the risk of product sliding during overall injection of primary injection block is avoided, and the gap of copper bar is ensured during overall injection of copper bar middle plastic filling more full.

Description

Technical Field

[0001] This utility model relates to the field of insert injection molding, and in particular to a novel simplified runner plate casting mold structure. Background Technology

[0002] The basic principle of insert injection molding is to combine a metal or other material insert, pre-fixed in an injection mold, with plastic. During the injection molding process, molten plastic is injected into the mold cavity and forms around the insert. After cooling and solidification, the insert is tightly wrapped by the plastic, resulting in a product with the insert. In insert injection molded products with three layers of stacked copper busbars, direct injection molding can cause the stacked busbars to deform, move closer together, or even short-circuit due to the pressure of the colloid. This poses a significant safety risk to automotive motors, as deformation at the weld ends and inability to guarantee positional accuracy can lead to poor welding and motor failure. A solution is to first design a primary injection block on the middle copper busbar. Since the copper busbar surface is smooth, the primary injection block's connection to the copper busbar is not secure, posing a risk of slippage. Furthermore, the lateral pull-out force relative to the copper busbar is insufficient, also contributing to the risk of slippage. The copper busbar has a smooth surface, which makes the initial injection block and the copper busbar not securely connected and poses a risk of slippage. Therefore, a boss and groove structure is designed on the middle copper busbar to enhance the injection molding coverage and prevent the initial injection block from slipping during the overall injection molding process. Utility Model Content

[0003] The purpose of this invention is to provide a stacked copper busbar injection molding insert structure to solve the problem that the copper busbar is smooth, and the primary injection block is not firmly attached to the copper busbar, which poses a risk of slippage. Therefore, a boss and groove structure is designed on the middle copper busbar to enhance the injection molding coverage and prevent the primary injection block from slipping during the overall injection molding process.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a superimposed copper busbar injection molding insert structure, including a multi-layer copper busbar structure and a primary injection molding block structure connected to the multi-layer copper busbar structure. The multi-layer copper busbar structure includes an upper copper busbar body structure, a middle copper busbar body structure and a bottom copper busbar body structure. The primary injection molding connecting block structure includes an arc-shaped bearing injection molding body and an external extension body provided in the curved part of the bearing injection molding body. A snap-fit ​​groove structure connected to the bearing injection molding body is provided on the middle copper busbar body structure. The snap-fit ​​groove structure includes an outer connecting boss and a connecting groove on the outer side of the middle copper busbar body structure.

[0005] The aforementioned middle layer copper busbar structure includes an integrally formed middle layer external end, a middle layer bearing section, and a middle layer tail end. An injection molding fixing hole group is provided in the middle layer bearing section, and a snap-fit ​​groove structure is provided on the middle layer bearing section outside the injection molding fixing hole group.

[0006] The bottom copper busbar structure includes an integrally formed bottom external end, a bottom bearing section, and a bottom tail end.

[0007] The upper copper busbar structure includes an upper body bearing section integrally formed from copper parts and an upper tail connector assembly.

[0008] The beneficial effects of this invention are as follows: A 1.5mm wide and 3mm deep groove is added to one side of the central copper busbar, and a 1.5mm wide and 3mm deep groove protrusion is added to the other side before the next injection molding. This enhances the covering force of the first injection molding block and prevents slippage during overall injection molding. It also avoids the risk of product slippage during overall injection molding, resulting in fuller plastic filling in the middle of the copper busbar and ensuring adequate spacing between the copper busbars during overall injection molding.

[0009] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] Figure 2 for Figure 1 Diagram showing the connection status between the middle layer copper busbar structure and the primary injection molding connecting block structure.

[0012] Figure 3 for Figure 2 A magnified view of a portion of the image.

[0013] In the diagram: 1. Supporting injection body, 2. External extension body, 3. External connecting boss, 4. Connecting groove, 5. Middle layer external connection end, 6. Middle layer support section, 7. Middle layer tail connection end, 8. Injection fixing hole group, 9. Bottom layer external connection end, 10. Bottom layer support section, 11. Bottom layer tail connection end, 12. Upper layer support section, 13. Upper layer tail connection end group. Detailed Implementation

[0014] The terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end" used in the application text to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing the present invention and for 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 the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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. Example 1, as Figure 1 As shown, a superimposed copper busbar injection molding insert structure includes a multi-layer copper busbar structure and a primary injection molding block structure connected to the multi-layer copper busbar structure. The multi-layer copper busbar structure includes an upper copper busbar body structure, a middle copper busbar body structure, and a bottom copper busbar body structure. The primary injection molding block structure includes an arc-shaped bearing injection molding body 1 and an external extension body 2 located in the curved part of the bearing injection molding body. A snap-fit ​​groove structure connected to the bearing injection molding body is provided on the middle copper busbar body structure. The snap-fit ​​groove structure includes an outer connecting boss 3 located on the outside of the middle copper busbar body structure and a connecting groove 4 located on the outside of the middle copper busbar body structure.

[0016] The aforementioned middle layer copper busbar structure includes an integrally formed middle layer external end 5, a middle layer bearing section 6, and a middle layer tail end 7. An injection molding fixing hole group 8 is provided in the middle layer bearing section, and a snap-fit ​​groove structure is provided on the middle layer bearing section outside the injection molding fixing hole group.

[0017] The bottom copper busbar structure includes an integrally formed bottom external end 9, a bottom bearing section 10, and a bottom tail end 11.

[0018] The upper copper busbar structure includes an upper body bearing section 12 integrally formed from copper parts and an upper tail connector group 13.

[0019] A 1.5mm wide and 3mm deep groove is added to one side of the middle copper busbar, and a 1.5mm wide and 3mm deep groove boss is added to the other side before another injection molding of the block. This enhances the covering force of the first injection block and prevents slippage during overall injection molding. It also avoids the risk of product slippage during overall injection molding, resulting in fuller plastic filling in the middle of the copper busbar and ensuring adequate gaps between the copper busbars. The above embodiments are merely descriptions of preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and improvements made to the technical solutions of this utility model by those skilled in the art without departing from the spirit of this utility model should fall within the protection scope defined by the claims of this utility model.

[0020] The parts not covered in this utility model are the same as or can be implemented using existing technologies.

Claims

1. A stacked copper busbar injection molding insert structure, comprising a multi-layer copper busbar structure and a primary injection molding block structure connected to the multi-layer copper busbar structure, characterized in that: The multi-layer copper busbar structure includes an upper copper busbar structure, a middle copper busbar structure, and a bottom copper busbar structure. The single-injection block structure includes an arc-shaped support injection body and an external extension body located in the curved part of the support injection body. A snap-fit ​​groove structure connected to the support injection body is provided on the middle copper busbar structure. The snap-fit ​​groove structure includes an outer connecting boss and a connecting groove on the outer side of the middle copper busbar structure.

2. The superimposed copper busbar injection molding insert structure as described in claim 1, characterized in that: The aforementioned middle layer copper busbar structure includes an integrally formed middle layer external end, a middle layer bearing section, and a middle layer tail end. An injection molding fixing hole group is provided in the middle layer bearing section, and a snap-fit ​​groove structure is provided on the middle layer bearing section outside the injection molding fixing hole group.

3. The superimposed copper busbar injection molding insert structure as described in claim 1, characterized in that: The bottom copper busbar structure includes an integrally formed bottom external end, a bottom bearing section, and a bottom tail end.

4. The superimposed copper busbar injection molding insert structure as described in claim 1, characterized in that: The upper copper busbar structure includes an upper body bearing section integrally formed from copper parts and an upper tail connector assembly.

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