Motors, water pump assemblies and vehicles

Abstract

The present invention provides a motor, a water pump assembly, and a vehicle. The motor comprises a housing; a rotor assembly at least partially located within the housing; and a stator assembly disposed within the housing and positioned between the housing and the rotor assembly. The stator assembly comprises a stator frame, a winding, and three welding pins. The winding is wound around the outer wall of the stator frame and connected to the three welding pins, which are fixed to the stator frame. The technical solution of the present invention effectively solves the problems of complex stator winding structures and processes in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic water pumps, and in particular to a motor, a water pump assembly and a vehicle. Background Art

[0002] The electronic water pump mainly includes a motor and a water pump. The water pump is driven by the operation of the motor to pump water. A control board is installed in the motor. Usually, the control board is connected to the winding of the stator assembly. The direction of the magnetic field is continuously changed by controlling the on and off of different stator windings, so that the rotor can still maintain the original direction and continue to rotate after half a circle. In the prior art, the control board and the stator winding are directly welded together by soldering. If the diameter of the winding is relatively small, the contact point of the welding is small, and the connection strength of the soldering is relatively poor. This connection method is unstable. As the motor runs, the water pump vibrates continuously, and the welded part is easy to loosen and fall off. In addition, the windings of different phases need to be wound in a certain order around multiple grooves or protrusions of the stator core. The winding method is complicated, and the structure of the stator core is complex and the process is difficult, which is not conducive to the mass production of water pumps. Summary of the Invention

[0003] The main purpose of the present invention is to provide a motor, a water pump assembly and a vehicle to solve the problems of complex stator winding structure and process in the prior art.

[0004] To achieve the above-mentioned objectives, according to one aspect of the present invention, a motor is provided, comprising: a housing; a rotor assembly, the rotor assembly being at least partially located within the housing; a stator assembly, the stator assembly being disposed within the housing and between the housing and the rotor assembly, the stator assembly comprising a stator frame, a winding, and three welding pins, the winding being wound around the outer wall of the stator frame and connected to the three welding pins, and the three welding pins being fixed to the stator frame.

[0005] Furthermore, the stator assembly further includes a welding pin fixing frame, which is fixed on the stator frame, and three welding pins are fixed on the welding pin fixing frame at intervals.

[0006] Furthermore, the welding pin fixing frame and the stator frame are integrally injection-molded, and three welding pins are injection-molded in the welding pin fixing frame.

[0007] Furthermore, the winding and the welding pin are connected together by resistance welding.

[0008] Furthermore, the three welding pins include a first welding pin, a second welding pin and a third welding pin, the winding includes two enameled wires, the first ends of the two enameled wires are respectively connected to the first end of the first welding pin and the first end of the second welding pin, the second ends of the two enameled wires are respectively connected to the first end of the second welding pin and the first end of the third welding pin, and the enameled wire connected to the second welding pin is a different enameled wire.

[0009] Furthermore, the motor further comprises a Hall element mounting seat and a Hall element. The Hall element mounting seat is fixed on the stator frame, and the Hall element is mounted on the Hall element mounting seat.

[0010] Furthermore, the Hall element includes a Hall element body, a first lead pin, a second lead pin and a third lead pin, the second lead pin is located between the first lead pin and the third lead pin, and the first lead pin and the third lead pin both have a bent portion away from the second lead pin.

[0011] Furthermore, the motor also includes a control board, and the second ends of the three welding pins are connected to the control board.

[0012] Furthermore, three mounting holes are provided on the control board, and the second ends of the three welding pins pass through the three mounting holes respectively and are fixed by welding.

[0013] Furthermore, the stator frame includes a cylinder and limiting portions arranged at both ends of the cylinder, and the limiting portions are higher than the outer wall of the cylinder.

[0014] According to another aspect of the present invention, a water pump assembly is provided, comprising a water pump and a motor connected to the water pump, wherein the motor is the motor described above.

[0015] According to another aspect of the present invention, a vehicle is provided, comprising a vehicle body and a water pump assembly mounted on the vehicle body, wherein the water pump assembly is the above-mentioned water pump assembly.

[0016] The motor employing the technical solution of the present invention primarily comprises a housing, a rotor assembly, and a stator assembly. The stator assembly comprises a stator frame, windings, and three welding pins. The windings are wound directly onto the outer wall of the stator frame, with the winding connectors fixed to the welding pins. This eliminates the need to wrap the windings around the multiple grooves and protrusions of the stator frame, simplifying the winding process. Furthermore, the stator frame does not require machining of grooves and protrusions, reducing the number of machining steps and the complexity of the process. The technical solution of the present invention effectively addresses the complex stator winding structures and processes in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 shows a schematic cross-sectional view of an embodiment of a motor according to the present invention;

[0019] Figure 2 Shown Figure 1 A schematic perspective view of a stator assembly of the motor shown;

[0020] Figure 3 Shown Figure 2Schematic diagram of the three-dimensional view of the welding pin of the stator assembly shown

[0021] Figure 4 Shown Figure 1 The schematic diagram of the partial structure of the motor shown;

[0022] Figure 5 Shown Figure 4 Schematic diagram of the Hall element assembly shown; and

[0023] Figure 6 Shown Figure 5 The schematic diagram of the Hall element structure is shown in FIG.

[0024] The above drawings include the following reference numerals:

[0025] 10. Housing; 20. Rotor assembly; 30. Stator assembly; 31. Stator frame; 32. Winding; 33. Welding pin; 331. First welding pin; 332. Second welding pin; 333. Third welding pin; 338. Strip-shaped limiting structure; 34. Welding pin fixing bracket; 40. Hall element mounting base; 50. Hall element; 51. Hall element body; 52. First lead pin; 53. Second lead pin; 54. Third lead pin; 60. Control board. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] like Figures 1 to 6 As shown, the motor of this embodiment includes: a housing 10, a rotor assembly 20 and a stator assembly. The rotor assembly 20 is at least partially located in the housing 10, and the stator assembly 30 is arranged in the housing 10 and is located between the housing 10 and the rotor assembly 20. The stator assembly 30 includes a stator frame 31, a winding 32 and three welding pins 33. The winding 32 is wound on the outer wall of the stator frame 31 and is connected to the three welding pins 33. The three welding pins 33 are fixed on the stator frame 31.

[0028] Using the technical solution of this embodiment, the motor primarily comprises a housing 10, a rotor assembly 20, and a stator assembly 30. The stator assembly 30 comprises a stator frame 31, windings 32, and three welding pins 33. The windings 32 are wound directly onto the outer wall of the stator frame 31, with the winding connectors secured to the welding pins 33. This eliminates the need to wind the windings around the multiple grooves and protrusions of the stator frame 31, simplifying winding. Furthermore, the stator frame 31 does not require machining of grooves and protrusions, reducing the number of machining steps and the complexity of the process. The technical solution of this embodiment effectively addresses the complex stator winding structures and processes in the prior art.

[0029] like Figure 2 As shown, in the technical solution of this embodiment, the stator assembly 30 further includes a welding pin holder 34, which is fixed to the stator frame 31. Three welding pins 33 are fixed to the welding pin holder 34 at intervals. The welding pin holder 34 is fixed to the stator frame 31, which makes the structure compact, saves space, and facilitates the connection between the winding 32 on the stator frame 31 and the welding pins 33.

[0030] like Figure 2 As shown, in the technical solution of this embodiment, the solder pin holder 34 is integrally injection-molded with the stator frame 31, and the three solder pins 33 are injection-molded within the solder pin holder 34. The solder pin holder 34 is made of insulating material to prevent the three solder pins 33 from short-circuiting, thereby connecting the two-phase windings 32 together. Integral injection molding reduces processing steps and facilitates mass production.

[0031] like Figure 2 As shown, in the technical solution of this embodiment, the winding 32 and the welding pin 33 are connected together by resistance welding. Welding fixes the winding 32 and the welding pin 33 together and connects the winding 32 and the welding pin 33. Resistance welding does not require filler metal such as welding wire or welding rod, which reduces welding costs and improves production efficiency, facilitating mass production. In addition, resistance welding does not produce harmful gases or noise during welding, making it more environmentally friendly.

[0032] like Figure 2 and Figure 3 As shown, in the technical solution of this embodiment, the three welding pins 33 include a first welding pin 331, a second welding pin 332, and a third welding pin 333. The winding 32 includes two enameled wires. The first ends of the two enameled wires are connected to the first ends of the first welding pin and the first ends of the second welding pin, respectively. The second ends of the two enameled wires are connected to the first ends of the second welding pin and the first ends of the third welding pin, respectively. The enameled wires connected to the second welding pin 332 are different enameled wires. The first ends of the first welding pin and the first ends of the third welding pin each have a strip-shaped retaining structure 338 to secure the enameled wires and also serve as the resistance welding point. The first end of the second welding pin has two strip-shaped retaining structures 338. One end of the two enameled wires is fixed in the two strip-shaped retaining structures 338, but the two enameled wires are not connected simultaneously.

[0033] like Figure 4 and Figure 5As shown, in the technical solution of this embodiment, the motor also includes a Hall element mounting base 40 and a Hall element 50. The Hall element mounting base 40 is fixed to the stator frame 31, and the Hall element 50 is mounted on the Hall element mounting base 40. The Hall element mounting base 40 can fix and protect the Hall element 50. The Hall element mounting base 40 is integrally injection molded. This processing method can reduce the processing steps and facilitate mass production. The Hall element mounting base 40 has a protrusion, and the stator assembly 30 has a fixing groove. The Hall element mounting base 40 is inserted into the fixing groove through the protrusion, forming a snap-fit ​​structure to firmly fix it.

[0034] like Figure 5 As shown, in the technical solution of this embodiment, the Hall element 50 includes a Hall element body 51, a first lead pin 52, a second lead pin 53, and a third lead pin 54. The second lead pin 53 is located between the first lead pin 52 and the third lead pin 54. The first lead pin 52 and the third lead pin 54 both have a bent portion away from the second lead pin 53. The design of the bent portion can increase the gap between the lead pins. The three lead pins are respectively connected to the positive pole of the power supply, the output, and the ground. Increasing the gap can prevent the three lead pins from contacting each other and causing a short circuit.

[0035] like Figure 1 As shown, in the technical solution of this embodiment, the motor also includes a control board 60, and the second ends of the three solder pins are connected to the control board 60. The control board 60 is disposed at the rear end of the housing 10. The solder pins 33 are connected to the control board 60 by soldering. Soldering is a simple and easy process and is the main method for soldering electronic components.

[0036] like Figure 3 As shown, in the technical solution of this embodiment, the control board 60 is provided with three mounting holes. The second ends of the three welding pins are respectively inserted through the three mounting holes and welded to the control board. The Hall element 50 detects the rotor magnetic pole and transmits a signal to the control board. When the Hall element 50 detects the rotor magnetic pole is the north pole, the control board maintains the current between the enameled wire 331 and the second welding pin 332, and disconnects the enameled wire between the second welding pin 332 and the third welding pin 333. When the Hall element detects the rotor magnetic pole is the south pole, the control board immediately disconnects the current between the first welding pin 331 and the second welding pin 332 and maintains the current between the second welding pin 332 and the third welding pin 333. The current in the winding 32 between the first welding pin 331 and the second welding pin 332 and the second welding pin 332 and the third welding pin 333 is opposite, thereby causing the magnetic field direction to continuously change and drive the rotor to rotate continuously.

[0037] like Figure 2As shown, in the technical solution of this embodiment, the stator frame 31 includes a cylinder and limiting parts arranged at both ends of the cylinder, and the limiting parts are higher than the outer wall of the cylinder. The limiting parts can better fix the winding 32.

[0038] The present application also provides a water pump assembly, comprising a water pump and a motor connected to the water pump, wherein the motor is the motor described above.

[0039] The present application also provides a vehicle, comprising a vehicle body and a water pump assembly mounted on the vehicle body, wherein the water pump assembly is the water pump assembly described above.

[0040] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A motor, characterized in that: include: housing (10); a rotor assembly (20), the rotor assembly (20) being at least partially located within the housing (10); A stator assembly (30), the stator assembly (30) being arranged in the housing (10) and located between the housing (10) and the rotor assembly (20), the stator assembly (30) comprising a stator frame (31), a winding (32), and three welding pins (33), the winding (32) being wound on an outer wall of the stator frame (31) and connected to the three welding pins (33), and the three welding pins (33) being fixed to the stator frame (31); The three welding needles (33) include a first welding needle (331), a second welding needle (332) and a third welding needle (333); the winding (32) includes two enameled wires; the first ends of the two enameled wires are respectively connected to the first end of the first welding needle (331) and the first end of the second welding needle (332); the second ends of the two enameled wires are respectively connected to the first end of the second welding needle (332) and the first end of the third welding needle (333); and the enameled wires connected to the second welding needle (332) are different enameled wires; the first end of the first welding needle (331) and the first end of the third welding needle (333) each have a strip-shaped limiting structure (338) that can fix the enameled wire and is also a resistance welding location; the first end of the second welding needle (332) has two strip-shaped limiting structures (338); one end of the two enameled wires is respectively fixed in the two strip-shaped limiting structures (338), and the two enameled wires are not connected at the same time; The stator frame (31) comprises a cylinder and limiting portions arranged at both ends of the cylinder, wherein the limiting portions are higher than the outer wall of the cylinder.

2. The motor according to claim 1, characterized in that The stator assembly (30) further comprises a welding pin fixing frame (34), wherein the welding pin fixing frame (34) is fixed on the stator frame (31), and the three welding pins (33) are fixed on the welding pin fixing frame (34) at intervals.

3. The motor according to claim 2, characterized in that The welding pin fixing frame (34) and the stator frame (31) are integrally injection-molded, and the three welding pins (33) are injection-molded inside the welding pin fixing frame (34).

4. The motor according to claim 3, characterized in that The winding (32) and the welding pin (33) are connected together by resistance welding.

5. The motor according to claim 2, characterized in that The motor further comprises a Hall element mounting seat (40) and a Hall element (50), wherein the Hall element mounting seat (40) is fixed on the stator frame (31), and the Hall element (50) is mounted on the Hall element mounting seat (40).

6. The motor according to claim 5, characterized in that The Hall element (50) comprises a Hall element body (51), a first lead pin (52), a second lead pin (53) and a third lead pin (54), wherein the second lead pin (53) is located between the first lead pin (52) and the third lead pin (54), and the first lead pin (52) and the third lead pin (54) both have a bent portion away from the second lead pin (53).

7. The motor according to claim 2, characterized in that The motor further comprises a control board (60), and the second ends of the three welding pins (33) are all connected to the control board (60).

8. The motor according to claim 7, characterized in that The control board (60) is provided with three mounting holes, and the second ends of the three welding pins (33) pass through the three mounting holes respectively and are fixed by welding.

9. A water pump assembly, comprising a water pump and a motor connected to the water pump, characterized in that: The motor is the motor according to any one of claims 1 to 8.

10. A vehicle comprising a vehicle body and a water pump assembly mounted on the vehicle body, characterized in that: The water pump assembly is the water pump assembly according to claim 9.

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