Brushless motor with replaceable stator

Abstract

The utility model relates to the technical field of motors, in particular to a brushless motor with a replaceable stator, which comprises a mounting base, a connecting seat is fixedly connected to the center of the top surface of the mounting base, a lower shell is fixedly connected to the upper part of the connecting seat, an upper shell is slidably connected to the upper part of the lower shell, and a stator is arranged in the upper shell. A stator is jointly arranged in the upper shell and the lower shell, an output shaft is arranged on one side of the stator and penetrates through the upper shell and the lower shell, and baffles are arranged on the sides, close to the output shaft, of the upper shell and the lower shell. The utility model has the advantages that: when the arc-shaped plates are close to the outer walls of the upper shell and the lower shell, the arc-shaped plates can play a role in clamping and fixing the upper shell and the lower shell, further limit the upper shell and prevent the upper shell and the lower shell from being randomly separated, and when the four arc-shaped plates move to the outer walls of the upper shell and the lower shell, the arc-shaped plates can be separated from the upper shell and the lower shell. And the four limiting blocks can be inserted into the limiting frame to play a role in reinforcing sliding connection of the upper shell and the lower shell, so that the upper shell and the lower shell are tighter.

Description

Technical Field

[0001] This utility model relates to the field of motor technology, and in particular to a brushless motor with a replaceable stator. Background Technology

[0002] The stator is an important component of motors such as generators and starters. It is a crucial part of the electric motor. The stator consists of three parts: the stator core, the stator windings, and the frame. The main function of the stator is to generate a rotating magnetic field, while the main function of the rotor is to be cut by magnetic lines of force within this rotating magnetic field, thereby generating (output) current.

[0003] Compared to brushed motors, brushless motors have no relative friction between the stator and rotor, resulting in less energy loss and a smaller footprint. They have broad application prospects in high-speed and high-integration fields. However, brushless motors are relatively expensive, difficult to repair after damage, and have high operating costs. Replacing the stator of a current brushless motor requires removing the motor housing or end cover and completely disassembling the components that obstruct the stator before replacement. This operation is very inconvenient, and disassembling and reinstalling parts is also very laborious. Therefore, a brushless motor with a replaceable stator is proposed. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a brushless motor with a replaceable stator, which effectively solves the deficiencies of the prior art.

[0005] To achieve the above objectives, one embodiment of this utility model provides a brushless motor with a replaceable stator, including a mounting base. A connecting seat is fixedly connected to the center of the top surface of the mounting base. A lower housing is fixedly connected above the connecting seat. An upper housing is slidably connected above the lower housing. A stator is commonly arranged inside the upper and lower housings. An output shaft is arranged on one side of the stator, passing through the upper and lower housings. A baffle is arranged on the side of the upper and lower housings near the output shaft. Connecting rods are slidably connected to both sides of the top surface of the mounting base. Arc-shaped plates are fixedly connected to both ends of the two connecting rods. Limiting blocks are fixedly connected to the ends of the four arc-shaped plates away from the mounting base. The four limiting blocks are grouped in pairs. Two limiting frames are fixedly connected to the top of the outer wall of the upper housing. The positions of the two limiting frames correspond to the positions of the two groups of limiting blocks. The interior and both ends of the limiting frames are hollow.

[0006] Preferably, in any of the above embodiments, two L-shaped mounting plates are fixedly connected to both sides of the bottom surface of the mounting base, and the bottom surface of the two L-shaped mounting plates is provided with several fixing holes.

[0007] The technical effect achieved by adopting the above solution is that the mounting base can be fixed in a certain position by using two L-shaped mounting plates, thus achieving a fixing function.

[0008] Preferably, in any of the above embodiments, a limiting groove is fixedly connected to the edge of the opening of the lower housing, and a frame is fixedly connected to the edge of the opening of the upper housing. Both the limiting groove and the frame are U-shaped, and the limiting groove and the frame are slidably connected.

[0009] The technical effect achieved by adopting the above solution is that the upper and lower shells can be slidably connected together through the limiting groove and the limiting frame, which plays a role in limiting and stabilizing the upper shell, preventing the upper shell from shaking or misaligning and affecting subsequent installation and disassembly work, and reducing the difficulty of installation and disassembly work.

[0010] Preferably, in any of the above schemes, the diameter of the circle formed by the arc plate is equal to the diameter of the circle formed by the upper shell and the lower shell, and anti-slip pads are fixedly connected to the inner sides of the four arc plates.

[0011] The technical effect achieved by adopting the above solution is that when the arc plate is close to the outer wall of the upper and lower shells, it can clamp and fix the upper and lower shells, further limit the upper shell and prevent the upper and lower shells from separating at will. The anti-slip pad can further increase the friction between the arc plate and the outer wall of the upper and lower shells.

[0012] Preferably, in any of the above solutions, the ends of the four limiting blocks away from the arc plate all face the opening of the limiting frame, the dimensions of the outer walls of the four limiting blocks are adapted to the dimensions of the inner walls of the limiting frame, and the ends of the four limiting blocks away from the arc plate are all provided with chamfers.

[0013] The technical effect achieved by adopting the above solution is that when the four arc-shaped plates move to the outer walls of the upper and lower shells, the four limiting blocks can be inserted into the interior of the limiting frame, which strengthens the sliding connection between the upper and lower shells and makes the upper and lower shells more tightly connected.

[0014] Preferably, in any of the above embodiments, a bidirectional lead screw is rotatably connected to the middle of the connecting seat, and the two ends of the bidirectional lead screw are respectively threaded to the middle of two connecting rods. A motor is fixedly connected to the mounting base near one end of the bidirectional lead screw, and the output end of the motor is fixedly connected to one end of the bidirectional lead screw.

[0015] The technical effect achieved by adopting the above solution is that by using this solution, a motor can be used to drive a bidirectional lead screw to rotate, and the rotation of the bidirectional lead screw can move four arc plates simultaneously.

[0016] Preferably, in any of the above embodiments, the top surface of the mounting base is provided with strip grooves on both sides, the two ends of the two connecting rods are fixedly connected with sliders, and the four sliders are slidably connected to the two strip grooves respectively.

[0017] The technical effect achieved by adopting the above solution is that the connecting rod can be slidably connected to the strip groove through the slider, which serves to limit the arc plate and the connecting rod.

[0018] This utility model has the following advantages:

[0019] This is a brushless motor with a replaceable stator. The upper and lower housings are slidably connected by limiting grooves and limiting frames. The motor drives a bidirectional lead screw to rotate, which in turn moves four arc-shaped plates simultaneously. When the arc-shaped plates approach the outer walls of the upper and lower housings, they clamp and fix the upper and lower housings, further limiting the upper housing and preventing it from detaching. Anti-slip pads further increase the friction between the arc-shaped plates and the outer walls of the upper and lower housings. When the four arc-shaped plates move to the outer walls of the upper and lower housings, the four limiting blocks can insert into the limiting frames, strengthening the sliding connection between the upper and lower housings and making them more tightly connected. This completes the fixing and installation of the motor housing without much operation. When the stator needs maintenance, the arc-shaped plates are moved away from the outer walls of the upper and lower housings, and the motor housing can be opened by lifting the upper housing, making it more convenient and quick. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of the first view of this utility model;

[0021] Figure 2 This is a structural schematic diagram of the second view of the present invention;

[0022] Figure 3 This is a structural schematic diagram of the third view of this utility model;

[0023] Figure 4 This is a structural schematic diagram of the fourth view of this utility model.

[0024] In the diagram: 1-Mounting base, 2-Cover plate, 3-Anti-slip pad, 5-Limit frame, 6-Limit block, 7-Upper housing, 8-Arc plate, 9-Lower housing, 10-Motor, 11-Strip groove, 12-Mounting hole, 13-Connecting rod, 14-L-shaped mounting plate, 15-Double lead screw, 16-Slider, 17-Frame, 18-Limit groove, 19-Stator, 20-Output shaft. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0026] like Figures 1 to 4 As shown, a brushless motor with a replaceable stator includes a mounting base 1. A connecting seat 21 is fixedly connected to the center of the top surface of the mounting base 1. A lower housing 9 is fixedly connected above the connecting seat 21. An upper housing 7 is slidably connected above the lower housing 9. A stator 19 is jointly arranged inside the upper housing 7 and the lower housing 9. An output shaft 20 is arranged on one side of the stator 19, and the output shaft 20 passes through the upper housing 7 and the lower housing 9. A baffle 2 is arranged on the side of the upper housing 7 and the lower housing 9 near the output shaft 20. Connecting rods 13 are slidably connected to both sides of the top surface of the mounting base 1. Arc plates 8 are fixedly connected to both ends of the two connecting rods 13. Limiting blocks 6 are fixedly connected to the ends of the four arc plates 8 away from the mounting base 1. The four limiting blocks 6 are in pairs. Two limiting frames 5 are fixedly connected to the top of the outer wall of the upper housing 7. The positions of the two limiting frames 5 correspond to the positions of the two sets of limiting blocks 6. The interior and both ends of the limiting frames 5 are hollow.

[0027] As an optional technical solution of this utility model, two L-shaped mounting plates 14 are fixedly connected to both sides of the bottom surface of the mounting base 1. The bottom surface of the two L-shaped mounting plates 14 is provided with a number of fixing holes 12. By using this solution, the mounting base 1 can be fixed in a certain position by using the two L-shaped mounting plates 14, thereby achieving the function of fixing.

[0028] As an optional technical solution of this utility model, a limiting groove 18 is fixedly connected to the edge of the opening of the lower housing 9, and a frame 17 is fixedly connected to the edge of the opening of the upper housing 7. Both the limiting groove 18 and the frame 17 are U-shaped, and the limiting groove 18 and the frame 17 are slidably connected. By using this solution, the upper housing 7 and the lower housing 9 can be slidably connected together through the limiting groove 18 and the frame 17, which plays a role in limiting and stabilizing the upper housing 7, preventing the upper housing 7 from shaking or misaligning at will and affecting the subsequent installation and disassembly work, and reducing the difficulty of installation and disassembly work.

[0029] As an optional technical solution of this utility model, the diameter of the circle formed by the arc plate 8 is equal to the diameter of the circle formed by the upper shell 7 and the lower shell 9. Anti-slip pads 3 are fixedly connected to the inner sides of the four arc plates 8. By using this solution, when the arc plate 8 is close to the outer wall of the upper shell 7 and the lower shell 9, it can clamp and fix the upper shell 7 and the lower shell, further limiting the upper shell 7 and preventing the upper shell 7 and the lower shell from detaching at will. The anti-slip pads 3 can further increase the friction between the arc plate 8 and the outer wall of the upper shell 7 and the lower shell 9.

[0030] As an optional technical solution of this utility model, the ends of the four limiting blocks 6 away from the arc plate 8 are all facing the opening of the limiting frame 5. The size of the outer wall of the four limiting blocks 6 is adapted to the size of the inner wall of the limiting frame 5. The ends of the four limiting blocks 6 away from the arc plate 8 are all provided with chamfers. By using this solution, when the four arc plates 8 move to the outer wall of the upper shell 7 and the lower shell 9, the four limiting blocks 6 can be inserted into the interior of the limiting frame 5, which can strengthen the sliding connection between the upper shell 7 and the lower shell 9 and make the upper shell 7 and the lower shell 9 more tightly connected.

[0031] As an optional technical solution of this utility model, a bidirectional lead screw 15 is rotatably connected to the middle of the connecting seat 21. The two ends of the bidirectional lead screw 15 are respectively threaded to the middle of the two connecting rods 13. A motor 10 is fixedly connected to the mounting base 1 near one end of the bidirectional lead screw 15. The output end of the motor 10 is fixedly connected to one end of the bidirectional lead screw 15. By using this solution, the motor 10 can drive the bidirectional lead screw 15 to rotate. The rotation of the bidirectional lead screw 15 can move the four arc plates 8 simultaneously.

[0032] As an optional technical solution of this utility model, both sides of the top surface of the mounting base 1 are provided with strip grooves 11, and both ends of the two connecting rods 13 are fixedly connected with sliders 16. The four sliders 16 are slidably connected to the two strip grooves 11 respectively. By using this solution, the connecting rods 13 can be slidably connected to the strip grooves 11 through the sliders 16, which serves to limit the arc plate 8 and the connecting rods 13.

[0033] This type of brushless motor with a replaceable stator requires the following steps to use:

[0034] 1) The upper shell 7 and the lower shell 9 are slidably connected together by the limiting groove 18 and the frame 17;

[0035] 2) When the arc plate 8 is close to the outer wall of the upper shell 7 and the lower shell 9, it can clamp and fix the upper shell 7 and the lower shell, and further limit the upper shell 7;

[0036] 3) The four limiting blocks 6 can be inserted into the inside of the limiting frame 5 to strengthen the sliding connection between the upper shell 7 and the lower shell 9, making the upper shell 7 and the lower shell 9 more tightly connected.

[0037] In summary, during use, the upper housing 7 and lower housing 9 are slidably connected together via the limiting groove 18 and the frame 17. The motor 10 drives the bidirectional lead screw 15 to rotate, which in turn moves the four arc-shaped plates 8 simultaneously. When the arc-shaped plates 8 approach the outer walls of the upper housing 7 and lower housing 9, they clamp and fix the upper housing 7 and lower housing, further limiting the upper housing 7 and preventing it from detaching from the lower housing. The anti-slip pads 3 further increase the friction between the arc-shaped plates 8 and the outer walls of the upper housing 7 and lower housing 9. When the four arc-shaped plates 8 move to the outer walls of the upper housing 7 and lower housing 9, the four limiting blocks 6 can be inserted into the limiting frame 5, strengthening the sliding connection between the upper housing 7 and lower housing 9 and making them more tightly connected. This completes the fixing and installation of the motor housing without much operation. When the stator needs maintenance, the arc-shaped plates 8 are moved away from the outer walls of the upper housing 7 and lower housing 9, and the upper housing 9 is lifted to open the motor housing, making it more convenient and quick.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A brushless motor with a replaceable stator, characterized in that: The system includes a mounting base (1), a connecting seat (21) fixedly connected to the center of the top surface of the mounting base (1), a lower housing (9) fixedly connected above the connecting seat (21), an upper housing (7) slidably connected above the lower housing (9), a stator (19) shared inside the upper housing (7) and the lower housing (9), an output shaft (20) provided on one side of the stator (19), the output shaft (20) passing through the upper housing (7) and the lower housing (9), and a... A baffle (2) is provided. Connecting rods (13) are slidably connected to both sides of the top surface of the mounting base (1). Arc plates (8) are fixedly connected to both ends of the two connecting rods (13). Limiting blocks (6) are fixedly connected to the ends of the four arc plates (8) away from the mounting base (1). The four limiting blocks (6) are in pairs. Two limiting frames (5) are fixedly connected to the top of the outer wall of the upper shell (7). The positions of the two limiting frames (5) correspond to the positions of the two sets of limiting blocks (6). The interior and both ends of the limiting frames (5) are hollow.

2. A brushless motor with a replaceable stator according to claim 1, characterized in that: Two L-shaped mounting plates (14) are fixedly connected to both sides of the bottom surface of the mounting base (1), and several fixing holes (12) are opened on the bottom surface of the two L-shaped mounting plates (14).

3. A brushless motor with a replaceable stator according to claim 2, characterized in that: A limiting groove (18) is fixedly connected to the edge of the opening of the lower housing (9), and a frame (17) is fixedly connected to the edge of the opening of the upper housing (7). Both the limiting groove (18) and the frame (17) are U-shaped, and the limiting groove (18) and the frame (17) are slidably connected.

4. A brushless motor with a replaceable stator according to claim 3, characterized in that: The diameter of the circle formed by the arc plate (8) is equal to the diameter of the circle formed by the upper shell (7) and the lower shell (9), and anti-slip pads (3) are fixedly connected to the inner sides of the four arc plates (8).

5. A brushless motor with a replaceable stator according to claim 4, characterized in that: The ends of the four limiting blocks (6) away from the arc plate (8) all face the opening of the limiting frame (5). The dimensions of the outer walls of the four limiting blocks (6) are adapted to the dimensions of the inner walls of the limiting frame (5). The ends of the four limiting blocks (6) away from the arc plate (8) are all provided with chamfers.

6. A brushless motor with a replaceable stator according to claim 5, characterized in that: A bidirectional lead screw (15) is rotatably connected to the middle of the connecting seat (21). The two ends of the bidirectional lead screw (15) are threaded to the middle of the two connecting rods (13) respectively. A motor (10) is fixedly connected to one end of the mounting base (1) near the bidirectional lead screw (15). The output end of the motor (10) is fixedly connected to one end of the bidirectional lead screw (15).

7. A brushless motor with a replaceable stator according to claim 6, characterized in that: The mounting base (1) has strip grooves (11) on both sides of its top surface. The two ends of the two connecting rods (13) are fixedly connected to sliders (16), and the four sliders (16) are slidably connected to the two strip grooves (11) respectively.

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