Spring tension connecting pin and plug-in puncture welding-free composite connector

Abstract

The utility model relates to the technical field of connectors, and discloses a spring tension connecting pin and a plug-in puncture welding-free composite connector, which comprise a stator coil holder socket positioned on an enameled wire winding coil holder, and a composite connector is plugged in the stator coil holder socket. The composite connector comprises a puncture type terminal assembly and an elastic connecting needle assembly, through the design of the composite connector, the PCB end does not need a plug-in socket, the PCB end does not need a welding process, the PCB end does not need a crimping process, the cost is saved, and the production efficiency is greatly improved; the PCB can be quickly pressed and buckled on the elastic connecting needle assembly with the elastic deformation; the benefit of directly puncturing the enameled wire is that the enameled wire does not need to be scraped, the tedious and complex enameled leather scraping process is omitted, the connection reliability and stability of the coil holder are improved, and meanwhile, the working environment of toxic gas generated by sintering the enameled wire by flames in a traditional production field is also improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of connectors, in particular to a spring tensioning force connecting needle and an inserted puncture-free welding composite connector. Background Art

[0002] At present, when the controller of the servo motor connects the motor skeleton coil and the BMC package of the control PCB, the industry mainly relies on connecting the wires and then welding them on the PCB, or connecting a connector socket on the PCB and connecting the wire segments to a connector plug. Since the enameled wire is flame-sintered during welding and the paint is scraped off, the process is cumbersome. At the same time, the toxic gas generated by the flame-sintering of the enameled wire affects the working environment. Based on this, a spring tensioning force connecting pin and an inserted puncture-free welding composite connector are designed. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a spring tensioning force connecting needle and an insertable puncture-free welding composite connector, which effectively solves the problems raised in the above background.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a spring tension force connecting needle and an inserted piercing welding-free composite connector, comprising a stator wire frame socket located on an enameled wire winding wire frame, wherein a composite connector is plugged into the stator wire frame socket, and the composite connector comprises a piercing terminal assembly and an elastic connecting needle assembly, wherein the elastic connecting needle assembly is welded to the upper end of the piercing terminal assembly.

[0005] Preferably, the piercing terminal assembly includes a U-shaped terminal contact, a welding portion is bent on one side of the upper end of the U-shaped terminal contact, an inner bent portion is bent inwardly and connected to the upper end of the U-shaped terminal contact, a Y-shaped groove is opened in the middle of the lower end of the U-shaped terminal contact, and guide slopes are provided on both side ends of the U-shaped terminal contact.

[0006] Preferably, the elastic connecting needle assembly comprises a cylinder, a spring is connected to the interior of the cylinder, a movable needle is connected to the upper end of the spring, and the upper end of the movable needle extends through and extends to the outside of the cylinder.

[0007] Compared with the prior art, the beneficial effects of the utility model are:

[0008] (1) Through the design of the composite connector, the PCB board end no longer requires a plug-in socket, the PCB board end no longer requires a welding process, and the PCB board end no longer requires a crimping process, which saves costs and greatly improves production efficiency; the PCB board can be quickly pressed onto the elastic connection pin assembly with elastic deformation;

[0009] (2) The benefit of the new elastic connecting needle assembly is that the number of connection docking times can be repeated for many times; the connection elastic stress can maintain a high holding force, and the holding force can be adjusted according to the elastic coefficient of the spring, so it can be used flexibly;

[0010] (3) The benefit of the new elastic connecting pin assembly is that it provides reliable connection and keeps the electrical connection system working stably, and is particularly suitable for vibration environments and occasions with many impact applications.

[0011] (4) The benefit of directly piercing the enameled wire is that the enameled wire no longer needs to be scraped off, eliminating the tedious and complicated process of scraping off the paint, improving the connection reliability and stability of the wire rack, and also improving the working environment of the traditional production site where toxic gases are generated due to flame sintering of the enameled wire, or the environmental protection requirements of lead-free welding using solder paste by scraping off the paint, greatly reducing the processing and assembly costs of the enameled wire ends of the wire rack. 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 monomer structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 Schematic diagram of the exploded view structure;

[0016] Figure 3 This is a schematic diagram of the connection structure of the spring of the utility model;

[0017] Figure 4 This is a schematic diagram of the triplet structure of the utility model;

[0018] Figure 5 For this utility model Figure 4 Exploded diagram of

[0019] In the figure: 1. stator wire rack socket; 2. piercing terminal assembly; 201. U-shaped terminal contact; 202. welding part; 203. inner bending part; 204. Y-shaped groove; 205. guiding slope; 3. elastic connecting needle assembly; 301. cylinder; 302. spring; 303. movable needle. DETAILED DESCRIPTION

[0020] 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.

[0021] Embodiment 1, by Figure 1-Figure 5 The utility model includes a stator wire frame socket 1 located on an enameled wire winding wire frame, a composite connector is plugged into the stator wire frame socket 1, and the composite connector includes a piercing terminal assembly 2 and an elastic connecting needle assembly 3, and the elastic connecting needle assembly 3 is welded to the upper end of the piercing terminal assembly 2;

[0022] The piercing terminal assembly 2 includes a U-shaped terminal contact 201, a welding portion 202 is bent on one side of the upper end of the U-shaped terminal contact 201, an inner bending portion 203 is bent inwardly on one side of the upper end of the U-shaped terminal contact 201, a Y-shaped groove 204 is opened in the middle of the lower end of the U-shaped terminal contact 201, and guiding inclined surfaces 205 are provided on both sides of the U-shaped terminal contact 201;

[0023] The elastic connecting needle assembly 3 includes a cylinder 301 , a spring 302 is connected inside the cylinder 301 , a movable needle 303 is connected to the upper end of the spring 302 , and the upper end of the movable needle 303 extends through the cylinder 301 to the outside.

[0024] Working principle: When in use, the motor stator phase end UVW end, use a monomer structure to connect, such as Figure 1-Figure 3 , the coil winding enameled wire is located in the stator wire frame socket 1, and then the composite connector is plugged in, so that the piercing terminal assembly 2 is inserted into the stator wire frame socket 1. At this time, the Y-shaped groove 204 at the bottom of the U-shaped terminal contact 201 on the piercing terminal assembly 2 is inserted from the upper end of the enameled wire, and the paint coating of the enameled wire is pierced, thereby connecting with the enameled wire, and the elastic connecting needle assembly 3 is connected to the PCB. The advantage of this design is that the PCB assembly can quickly press the cover, repeatedly disassemble and assemble, and the connection and docking times can be reused many times, which is very convenient for connecting the servo motor, stepper motor, and brushless variable frequency motor control board;

[0025] On the other hand, if a Y-type connected motor is used, the common terminal is connected using the following triplet structure, such as Figure 4-Figure 5 , and its operation mode is the same as that of the monomer structure.

[0026] The benefits of this design are as follows:

[0027] 1. The PCB board end no longer requires a plug-in socket, the PCB board end no longer requires a welding process, and the PCB board end no longer requires a crimping process, which saves costs and greatly improves production efficiency; the PCB board can be quickly pressed onto the elastic connection pin assembly 3 with elastic deformation;

[0028] 2. The benefit of the elastic connecting needle assembly 3 is that the connection and docking times can be repeated for multiple times; the connection elastic stress can maintain a high holding force, and the holding force can be adjusted according to the elastic coefficient of the spring 302, so it can be used flexibly;

[0029] 3. The benefit of the elastic connecting pin assembly 3 is that the connection reliability contact maintains the continuous and stable operation of the electrical connection system, which is especially suitable for vibration environments and occasions with many impact applications; for example: brushless motors are used in automotive electronic water pumps, electronic oil pumps, glass lifting motors, sunroof motors, seat motors, wiper swing motors, power tool impact drills, garden tool cutting motors, woodworking electric saw motors, construction site impact motors and other industries, and the market prospects are very broad;

[0030] The elastic deformation design effectively absorbs, relieves and buffers the impact force in the product scene, and effectively absorbs the energy of the spring 302;

[0031] 4. The benefit of directly piercing the enameled wire is that the enameled wire no longer needs to be scraped off, eliminating the tedious and complicated process of scraping off the paint, improving the connection reliability and stability of the wire rack, and also improving the working environment of the traditional production site due to the toxic gas generated by flame sintering of the enameled wire, or the environmental protection requirements of lead-free welding with solder paste after scraping off the paint, which greatly reduces the processing and assembly cost of the enameled wire end of the wire rack.

Claims

1. A spring tension force connection pin and plug-in puncture-free soldering composite connector, comprising a stator bobbin socket (1) located on an enameled wire winding bobbin, characterized in that: A composite connector is plugged into the stator wire frame socket (1), the composite connector comprising a piercing terminal assembly (2) and an elastic connecting pin assembly (3), wherein the elastic connecting pin assembly (3) is welded to the upper end of the piercing terminal assembly (2).

2. The spring tension force connecting needle and plug-in puncture-free soldering composite connector according to claim 1, characterized in that: The piercing terminal assembly (2) comprises a U-shaped terminal contact (201), a welding portion (202) is bent on one side of the upper end of the U-shaped terminal contact (201), an inner bending portion (203) is bent inwardly and connected to the upper end of the U-shaped terminal contact (201), a Y-shaped groove (204) is provided in the middle of the lower end of the U-shaped terminal contact (201), and guiding inclined surfaces (205) are provided on both side ends of the U-shaped terminal contact (201).

3. The spring tension force connecting needle and plug-in puncture-free soldering composite connector according to claim 1, characterized in that: The elastic connecting needle assembly (3) comprises a cylinder (301), the interior of the cylinder (301) is connected with a spring (302), the upper end of the spring (302) is connected with a movable needle (303), and the upper end of the movable needle (303) extends through the cylinder (301) to the outside.

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