Plug-in external puncture enameled wire connecting terminal of plastic package motor coil holder
By designing plug-in outer punctured enameled wire connection terminals in the plastic-sealed motor BMC process, the defects caused by the patent-scraping welding process in the prior art and the difficulty of connecting small-wire-diameter enameled wires are solved, and higher reliability and production efficiency are achieved.
Patent Information
- Application Number
- CN202421789089.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-26
AI Technical Summary
The prior art uses patent-scraping welding process in the BMC process of plastic sealing motors, resulting in defects such as false welding, missing welding, internal bubble wrap, etc., and for small-wire-diameter enameled wires, especially aluminum wires, it cannot effectively solve the problems of wire breakage, too wide, too tight or unreliable puncture grooves.
A plastic-sealed motor wire frame plug-in external punctured enameled wire connection terminal is designed, which adopts a plug-in connection method, without welding or stripping of wires. The enameled wire is easily punctured through the puncture groove design to achieve the connection with the enameled wire.
This design improves overall reliability, avoids defects such as false welding and missing welding. It is suitable for a wide range of BMC process technologies for plastic sealing motors, and can be produced using fully automated plug-in equipment, which improves production efficiency, product reliability and stable performance.
Smart Images
Figure CN222883862U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of connection terminals, in particular to a plastic-sealed motor wire rack insertion type external piercing enameled wire connection terminal. Background Art
[0002] In the BMC process technology of plastic-encapsulated motors, the existing technology generally adopts the paint scraping welding process. This solder paste welding is prone to defects such as cold solder joints, leaking solder joints, and internal bubbles, and the overall reliability is poor.
[0003] At present, there is basically no solution for the small diameter enameled wire in the industry, especially the enameled aluminum wire, which has a diameter less than Dia0.4mm. The existing solution in the industry is to sandwich the enameled wire inside the terminal. This structure can only pierce the enameled wire with a large diameter, which is less than Dia0.4mm. This type of sandwich piercing form has no way to solve the problems of wire breakage, too wide, too tight, or unreliable piercing grooves, resulting in many defects (such as Figure 7 , and 8).
[0004] Based on this, a plastic-sealed motor wire rack plug-in external piercing enameled wire connection terminal is designed. Utility Model Content
[0005] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a plastic-sealed motor wire rack plug-in type external piercing enameled wire connection terminal, which effectively solves the problems raised in the above background.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plastic-sealed motor wire rack plug-in external piercing enameled wire connection terminal, comprising an external plug-in sheet for welding, a fixing sheet, a connecting sheet, a V-shaped sheet, a tail sheet, a piercing groove, a first wing sheet and a second wing sheet, wherein the lower end of the external plug-in sheet is connected to the fixing sheet, the lower end of the fixing sheet is connected to the connecting sheet, the lower end of the connecting sheet is connected to the V-shaped sheet, the upper end of the V-shaped sheet is connected to the tail sheet, and piercing grooves are evenly arranged on one side of the V-shaped sheet.
[0007] Preferably, both sides of the upper and lower parts of the connecting piece are bent inwards to form a first wing.
[0008] Preferably, both sides of the tail piece are bent inwards to form a second wing piece.
[0009] Compared with the prior art, the beneficial effects of the utility model are:
[0010] 1. The utility model adopts the plug-in connection mode, which does not require welding or wire stripping, is simple to operate and highly efficient. The thorn groove design can easily pierce the enameled wire to achieve connection with the enameled wire;
[0011] 2. This new type of paint-scraping-free piercing technology for small-diameter enameled wires is aimed at the BMC process technology of a wide range of plastic-encapsulated motors. It greatly improves the overall reliability of the current paint-scraping welding process, and completely improves the defects such as cold soldering, leaking soldering, and internal bubbles caused by the original solder paste welding. In addition, it can be produced using fully automated plug-in equipment, which greatly improves the overall production efficiency and the reliability and stability of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.
[0013] In the attached picture:
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 This is a structural schematic diagram of another viewing angle of the utility model;
[0016] Figure 3 It is a schematic diagram of the structure of the thorn groove of the utility model;
[0017] Figure 4 It is a structural schematic diagram of the utility model in an assembled state;
[0018] Figure 5 For this utility model Figure 4 A partial schematic diagram of
[0019] Figure 6 For this utility model Figure 5 A cross-sectional view of
[0020] Figure 7 It is a connection diagram of the connection terminal in the prior art;
[0021] Figure 8 It is a schematic diagram of the sandwich puncture form of the connection terminal in the prior art;
[0022] In the figure: 1, external plug-in piece; 2, fixing piece; 3, connecting piece; 4, V-shaped piece; 5, tail piece; 6, thorn groove; 7, first wing piece; 8, second wing piece. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0024] Embodiment 1, by Figure 1-Figure 6 The utility model includes an external insert 1 for welding, a fixing piece 2, a connecting piece 3, a V-shaped piece 4, a tail piece 5, a thorn groove 6, a first wing piece 7 and a second wing piece 8, the lower end of the external insert 1 is connected to the fixing piece 2, the lower end of the fixing piece 2 is connected to the connecting piece 3, the lower end of the connecting piece 3 is connected to the V-shaped piece 4, the upper end of the V-shaped piece 4 is connected to the tail piece 5, and one side of the V-shaped piece 4 is evenly provided with thorn grooves 6;
[0025] The upper and lower sides of the connecting piece 3 are bent inward to form a first wing 7 to protect the enameled wire from entering the terminal;
[0026] Both sides of the tail piece 5 are bent inward to form a second wing piece 8 to protect the enameled wire from entering the interior of the terminal.
[0027] Working principle: When in use, the connecting terminal is inserted into the wire rack, and the wire is arranged in the wire rack. As the connecting terminal is inserted into the wire rack, the V-shaped piece 4 at the bottom contacts the wire, and the pressure is continued. The thorn groove 6 at the side end of the V-shaped piece 4 can pierce the paint on the surface of the wire to achieve connection. Finally, the external plug-in piece 1 can be connected to the external device or circuit;
[0028] The external plug-in piece 1 of the connection terminal is used to connect with an external device or circuit, the fixing piece 2 is used to provide a force point for the machine fixture when inserted, the first wing piece 7 and the second wing piece 8 on the inner side of the connection piece 3 and the tail piece 5 can be used as a protective enameled wire to prevent it from entering the terminal when inserted into the wire rack, and the wide bottom of the V-shaped piece 4 serves as a force support for the entire terminal;
[0029] The connecting terminal of this scheme avoids the insertion force being perpendicular to the enameled wire, avoiding the generation of vertical shear force, which will cut the enameled wire with small wire diameter, especially the enameled aluminum wire. The current scheme is to design a thorn groove 6 on the outside of the terminal, along the axial pulling force direction of the enameled wire, so that it can withstand a relatively large pulling force, perfectly avoiding the generation of vertical shear force and avoiding damage to the enameled wire.
Claims
1. A plastic-encapsulated motor wire rack plug-in type external piercing enameled wire connection terminal, comprising an external insert sheet (1) for welding, a fixing sheet (2), a connecting sheet (3), a V-shaped sheet (4), a tail sheet (5), a piercing groove (6), a first wing sheet (7) and a second wing sheet (8), characterized in that: The lower end of the external plug-in sheet (1) is connected to a fixing sheet (2), the lower end of the fixing sheet (2) is connected to a connecting sheet (3), the lower end of the connecting sheet (3) is connected to a V-shaped sheet (4), the upper end of the V-shaped sheet (4) is connected to a tail sheet (5), and one side of the V-shaped sheet (4) is evenly provided with thorn grooves (6).
2. The plastic-encapsulated motor wire rack plug-in external piercing enameled wire connection terminal according to claim 1, characterized in that: The upper and lower sides of the connecting piece (3) are both bent inwards to form first wing pieces (7).
3. The plastic-encapsulated motor wire rack plug-in type external piercing enameled wire connection terminal according to claim 1, characterized in that: Both sides of the tail piece (5) are bent inwards to form second wing pieces (8).