Sensing device suitable for brazing of tight wire plugging structure joint of motor stator
By adopting a C-type induction coil and a voltage divider structure, the problems of insulation material burn and complex operation during the welding of motor stator winding structures are solved, achieving efficient welding and stable equipment operation. This method is suitable for the automated production of tightly inserted motor stator structures.
Patent Information
- Application Number
- CN202423184983.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Existing technologies for welding motor stator winding structures are prone to burning insulation materials, and the use of loop-shaped induction coils is complex and easily deformed, resulting in low processing efficiency and insufficient water pressure in the equipment.
It adopts a C-type induction coil and a pressure divider structure, including a base plate, adapter, pressure divider copper pipe, pressure divider adapter and pressure divider hose, to ensure unobstructed water flow, and the circular structure prevents copper pipe deformation and simplifies the operation process.
It enables efficient welding in tightly connected wiring structures, avoids burning of insulation materials, simplifies operation steps, improves processing efficiency, and maintains stable water pressure in the equipment, making it suitable for automated production.
Smart Images
Figure CN223656185U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application discloses an induction device suitable for joint brazing of a close plug-in structure of a motor stator, and belongs to the technical field of plug-in structure end welding of a motor stator core assembly. BACKGROUND
[0002] The winding structure of the motor stator assembly is a plug-in structure, the distance between the end heads of each group of the plug-in structure is relatively close, and the minimum distance between adjacent end heads is 5 mm; and the welding point is below an insulating material such as insulating paper. When resistance brazing is used at present, the insulating paper is prone to being burnt; and when argon arc welding is used, the wire paint is prone to being burnt. The induction brazing method can effectively avoid the problem of burning the insulation and can guarantee the welding quality.
[0003] The main heating position of the induction coil is the internal region of the coil, but the position adjacent to the copper pipe outside the coil also heats the workpiece. In order to meet the welding requirement, the induction coil is selected to be a copper pipe with a diameter of 3 mm.
[0004] The current induction coil using the copper pipe with the specification adopts a back-shaped structure to facilitate bending. When the back-shaped structure induction coil is used, the welding area needs to be placed into the induction coil for welding. The method has the problems that the workpiece needs to be moved by hand or a tool, the operation steps are increased, and the processing efficiency is reduced. If a C-shaped opening structure induction coil is used, the copper pipe is too thin, and is prone to deformation and blockage of the water channel in the copper pipe during the bending process, so that the copper pipe cannot pass through the circulating water, and the induction coil is burnt during the welding process.
[0005] The induction welding machine has a water pressure protection device, when the copper pipe with a diameter of 3 mm is used as the induction coil, the water flow passing through the copper pipe is small, the water pressure sensed by the equipment is insufficient, and the equipment cannot work. SUMMARY
[0006] The purpose of the application is to realize induction brazing through an inductor when the winding structure of the motor stator assembly is a plug-in structure and the distance between adjacent end heads is 5 mm.
[0007] The technical scheme of the application is an induction device suitable for joint brazing of a close plug-in structure of a motor stator, which comprises two base plates 1, two adapter seats 2, two pressure distribution copper pipes 4, two pressure distribution adapter heads 3, a C-shaped induction coil 5 and a pressure distribution hose 6; the two adapter seats 2 are reversely mounted on the base plates 1 respectively, one end of the pressure distribution copper pipe 4 is connected to the side circular hole of the adapter seat 2, the other end is connected to the pressure distribution adapter head 3, the C-shaped induction coil 5 is connected to the corresponding circular hole on the upper side of the adapter seat 2, and the two ends of the pressure distribution hose 6 are mounted on the two pressure distribution adapter heads 3 respectively.
[0008] The C-shaped induction coil 5 is made of a copper pipe with a diameter of 3 mm.
[0009] The open end of the C-shaped induction coil 5 adopts a circular ring structure.
[0010] The adapter seat 2 is a rectangular structure, and a through hole is arranged in the middle part. The upper end of the through hole is connected with the C-shaped induction coil 5, the lower end is connected with the circular hole of the bottom plate 1, and a side hole is arranged on the through hole and connected with the pressure distribution copper pipe 4.
[0011] The pressure distribution adapter 3 has a tubular structure with a boss, and one end of the boss is connected with the pressure distribution copper pipe 4.
[0012] The material of the pressure distribution adapter 3 is red copper.
[0013] The beneficial effects of the present application are:
[0014] In order to ensure that the inductor coil and the wire end have sufficient gap, the inductor coil adopts a 3mm diameter copper pipe bending type. For the inductor coil made of 3mm diameter copper pipe, due to the influence of cold hardening, an O-shaped structure inductor coil is usually used to prevent water channel blockage caused by copper pipe deformation and copper pipe ablation during welding. However, the O-shaped inductor coil has the problems of slow processing efficiency and relatively complex operation compared with the C-shaped inductor coil. The O-shaped inductor coil needs to place the to-be-welded end into the working area of the inductor coil. When placing, the inductor coil needs to be lifted or the workpiece needs to be placed from below the coil. Since the relative position (especially the height direction) is different each time, the position needs to be adjusted. The C-shaped inductor coil adjusts the relative position in the height direction, and only needs to push the workpiece or the inductor coil into the opening position each time, without the need to adjust the height, which is simpler to operate and easier to realize automation.
[0015] In order to facilitate the manufacture of the inductor coil, the top end of the C-shaped inductor coil adopts a circular ring structure to avoid the problem of copper pipe deformation blocking the water channel.
[0016] Due to the use of thin diameter copper pipe, the equipment monitoring water volume becomes small, and the protection measures will be triggered, so that the equipment cannot work. Therefore, the pressure distribution water pipe is needed to avoid triggering the equipment protection. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a front view of the induction device of the present application.
[0018] Figure 2 It is a front view of the induction device of the present application.
[0019] Figure 3 It is a structure diagram of the C-shaped induction coil 5; wherein: a is a front view, and b is a left view.
[0020] Figure 4 It is a four-view diagram of the adapter seat 2; wherein: a is a top view, b is a front view, c is a right view, and d is a bottom view.
[0021] Figure 5It is a structure schematic view of bottom plate 1;Wherein: a is the front view, b is the lateral section view along the center of the round hole;
[0022] Figure 6 It is a structure schematic view of pressure distribution copper pipe 4;
[0023] Figure 7 It is a structure schematic view of pressure distribution adapter 3.
[0024] Wherein: 1-bottom plate, 2-adapter seat, 3-pressure distribution adapter, 4-pressure distribution copper pipe, 5-C type induction coil and, 6-pressure distribution hose. DETAILED DESCRIPTION
[0025] The utility model is further explained in connection with the drawings as follows:
[0026] As Figure 1 An induction device suitable for brazing of structure joint of motor stator tight wiring, comprising two bottom plates 1, two adapter seats 2, two pressure distribution copper pipes 4, two pressure distribution adapters 3, two C type induction coils 5 and pressure distribution hoses 6;Two adapter seats 2 are reversely installed on the bottom plate 1 respectively, one end of the pressure distribution copper pipe 4 is connected to the side hole of the adapter seat 2, the other end is connected to the pressure distribution adapter 3, the C type induction coil 5 is connected to the corresponding hole on the upper side of the adapter seat 2, and the pressure distribution hose 6 is installed on the two pressure distribution adapters 3 respectively. After the hose is installed, pressure distribution water flow is formed, which prevents the equipment from triggering alarm due to insufficient water pressure flowing through the induction coil. The workpiece is placed in the C type induction coil, and welding is carried out after power-on.
[0027] The C type induction coil 5 is made of copper pipe with a diameter of 3mm, and is bent into a C type induction coil, as shown in the figure. Figure 3 To prevent the copper pipe from being deformed in the bending process and affecting the waterway, the opening end of the C type induction coil 5 adopts a circular ring structure.
[0028] As Figure 4 The adapter seat 2 is a cuboid structure, and a through hole is arranged in the middle, the upper end of the through hole is connected with the C type induction coil 5, the lower end is connected with the bottom plate 1, and a side hole is arranged on the through hole and connected with the pressure distribution copper pipe 4. To realize the universality of the inductor, the waterway is expanded upward and connected with the Figure 5 bottom plate 1 by welding, forming a standard interface. The C type induction coil is made of copper pipe with a diameter of 3mm and is bent, and can weld 1mm wide flat copper wire in a single 4-5mm gap.
[0029] As Figure 7 The pressure distribution adapter 3 is a tubular structure with a boss, and one end of the boss is connected with the pressure distribution copper pipe 4. The pressure distribution adapter 3 is welded to the pressure distribution hose 6 to form a Figure 2The inductor is made of red copper.
[0030] In order to adapt to the standard interface of the equipment, the bottom plate 1 is added below the adapter 2 to ensure that the water holes at the bottom of the adapter are not concentric with the water outlet holes of the equipment, and the universality of the inductor is realized.
[0031] As shown in Figure 1 , in use, the height of the end of the stator assembly is adjusted, the ends are placed one by one into the working area of the C-shaped induction coil, and welding is performed.
Claims
1. An induction device suitable for brazing the joint of a tightly plugged-in structure of a motor stator, characterized in that, It includes two base plates (1), two adapters (2), two pressure dividing copper tubes (4), two pressure dividing adapters (3), a C-type induction coil (5), and a pressure dividing hose (6); the two adapters (2) are installed on the base plates (1) in opposite directions, one end of the pressure dividing copper tube (4) is connected to the round hole on the side of the adapter (2), and the other end is connected to the pressure dividing adapter (3), the C-type induction coil (5) is connected to the corresponding round hole on the upper side of the adapter (2), and the two ends of the pressure dividing hose (6) are installed on the two pressure dividing adapters (3) respectively.
2. The induction device for brazing the tightly inserted joint of the motor stator according to claim 1, characterized in that: The C-type induction coil (5) is made of a copper tube with a diameter of 3mm.
3. The induction device for brazing the tightly connected joint of a motor stator according to claim 1, characterized in that: The C-type induction coil (5) has a circular ring structure at its open end.
4. The induction device for brazing the tightly connected joint of a motor stator according to claim 1, characterized in that: The adapter (2) is a cuboid structure with a through hole in the middle. The upper end of the through hole is connected to the C-type induction coil (5), and the lower end is connected to the round hole of the base plate (1). A side hole is provided on the through hole to connect with the pressure dividing copper tube (4).
5. The induction device for brazing the tightly inserted joint of a motor stator according to claim 1, characterized in that: The pressure divider adapter (3) has a tubular structure with a boss, one end of which is connected to the pressure divider copper tube (4).
6. The induction device for brazing the tightly inserted joint of a motor stator according to claim 1, characterized in that: The pressure divider adapter (3) is made of copper.