PMAC injection molding insert with anti-falling structure
Patent Information
- Application Number
- CN202521984526.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-16
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-09-16
AI Technical Summary
[0003]本实用新型的目的是提供一种设有防脱结构的PMAC注塑嵌件，针对嵌件产品金属部件在使用过程中或产品经注塑成型后存在树脂包裹铜排不严实、铜排整体有松脱的问题
[0007]本实用新型的有益效果：该PMAC嵌件产品；对铜排与树脂结合区域进行结构调整，铜排两侧增加凹槽，凹槽深0.3mm-0.5mm，凹槽位于树脂中间位置，当产品注塑生产时树脂填满凹槽部位，产品成型后铜排在箭头方向被限位，无法移动，起到放松脱作用。
Smart Images
Figure CN224809934U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection molded inserts, and in particular to a PMAC injection molded insert with an anti-detachment structure. Background Technology
[0002] Inserts are metal or other material parts embedded during or after the molding process of plastic or other materials to enhance the functionality, strength, or aesthetics of a product. Inserts are widely used in the automotive, electronics, medical, and home appliance industries. Due to fluctuations in injection molding processes and raw materials, inserts can experience loosening or detachment between the metal components and the resin. PMAC products have a relatively simple initial structure, with no special anti-detachment mechanism between the copper busbar and the resin. Utility Model Content
[0003] The purpose of this utility model is to provide a PMAC injection molding insert with an anti-detachment structure, which addresses the problem that the metal parts of the insert product are not tightly wrapped with resin, and the copper busbar is loose as a whole, during use or after the product is injection molded.
[0004] The technical solution adopted by this utility model to solve its technical problem is: a PMAC injection-molded insert with an anti-detachment structure, including a copper busbar assembly and a covering structure. The covering structure includes an injection-molded block structure, a resin bonding area provided in the injection-molded block structure and connected to the copper busbar assembly, and an external injection-molded component provided in the injection-molded block structure. The copper busbar assembly includes an external connecting section, a central injection-molded covering section, and an external retaining groove assembly. An installation limiting groove structure is provided on the outside of the central injection-molded covering section located at the center of the resin bonding area.
[0005] The installation limiting groove structure is a semi-circular groove, a wavy groove, a rectangular groove, and an angular groove, and the lateral depth of the groove structure is 0.3mm-0.5mm.
[0006] The external injection molding assembly includes a mounting groove in the injection molding block structure, a connecting column in the mounting groove, and a snap-fit block assembly on the upper part of the connecting column.
[0007] The beneficial effects of this utility model are as follows: The PMAC insert product has a structural adjustment for the area where the copper busbar and resin are bonded. Grooves are added to both sides of the copper busbar, with a groove depth of 0.3mm-0.5mm. The grooves are located in the middle of the resin. When the product is injection molded, the resin fills the groove area. After the product is formed, the copper busbar is limited in the direction of the arrow and cannot move, thus playing a role in releasing the product.
[0008] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0009] Figure 1 A schematic diagram showing the connection state between the existing copper busbar assembly and the cladding structure.
[0010] Figure 2 This is a schematic diagram of the structure of this utility model.
[0011] Figure 3 for Figure 2 A schematic diagram of the local internal connection structure.
[0012] Figure 4 This is a schematic diagram illustrating another type of groove connection in this utility model.
[0013] In the diagram: 1. Injection-molded block structure, 2. Resin bonding area, 3. External connecting section, 4. Middle injection-molded covering section, 5. Installation limiting groove structure, 6. Mounting groove, 7. Connecting column, 8. Snap-fit block assembly, 9. External snap-fit sleeve assembly. 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. like Figure 1 As shown, fluctuations in injection molding processes and raw materials can lead to loosening and detachment between metal components and resin in insert products. PMAC products initially have a relatively simple structure, with no special anti-detachment mechanism between the copper busbar and the resin.
[0016] Example 1, as Figure 2-3As shown, a PMAC injection-molded insert with an anti-detachment structure includes a copper busbar assembly and an encapsulation structure. The encapsulation structure includes an injection-molded block structure 1, a resin bonding area 2 connected to the copper busbar assembly in the injection-molded block structure 1, and an external injection-molded component in the injection-molded block structure. The copper busbar assembly includes an external connecting section 3, a central injection-molded encapsulation section 4, and an external retaining groove assembly 9. An installation limiting groove structure 5 is provided on the outside of the central injection-molded encapsulation section located at the center of the resin bonding area.
[0017] The installation limiting groove structure 5 is a semi-circular groove; the lateral depth of the groove in the installation limiting groove structure 5 is 0.3mm-0.5mm.
[0018] The external injection molding assembly includes a mounting groove 6 in the injection molding block structure, a connecting column 7 disposed in the mounting groove, and a snap-fit block group 8 disposed on the upper part of the connecting column.
[0019] Example 2, as Figure 4 As shown, the installation limiting groove structure 5 is one of the following: wavy groove, rectangular groove, and angular groove, with the wavy groove being the best connection method.
[0020] This PMAC insert product features a structural adjustment to the area where the copper busbar and resin are bonded. Grooves are added to both sides of the copper busbar, with a depth of 0.3mm-0.5mm. The grooves are located in the middle of the resin. When the product is injection molded, the resin fills the grooves. After the product is formed, the copper busbar is restricted in the direction of the arrow and cannot move, thus achieving a release and release effect.
[0021] The above embodiments are merely descriptions of preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
[0022] The parts not covered in this utility model are the same as or can be implemented using existing technologies.
Claims
1. A PMAC injection-molded insert with an anti-detachment structure, comprising a copper busbar assembly and an encapsulation structure, characterized in that: The encapsulation structure includes an injection-molded block structure, a resin bonding area connected to the copper busbar assembly within the injection-molded block structure, and an external injection-molded component within the injection-molded block structure. The copper busbar assembly includes an external connecting section, a central injection-molded encapsulation section, and an external retaining groove assembly. An installation limiting groove structure is provided on the outer side of the central injection-molded encapsulation section located at the center of the resin bonding area.
2. The PMAC injection-molded insert with an anti-detachment structure as described in claim 1, characterized in that: The installation limiting groove structure is a semi-circular groove, a wavy groove, a rectangular groove, and an angular groove.
3. The PMAC injection-molded insert with an anti-detachment structure as described in claim 1, characterized in that: The lateral depth of the groove for installing the limiting groove structure is 0.3mm-0.5mm.
4. The PMAC injection-molded insert with an anti-detachment structure as described in claim 1, characterized in that: The external injection molding assembly includes a mounting groove in the injection molding block structure, a connecting column in the mounting groove, and a snap-fit block assembly on the upper part of the connecting column.