A phase sequence detection device

Abstract

This utility model discloses a phase sequence detection device, comprising: a stator base with a stator placement slot; a support assembly; a test rotor including a connecting portion rotatably connected to the support assembly; during testing, at least partially of the test portion of the test rotor is placed in the motor stator in the stator placement slot; and a drive assembly connected to the connecting portion to drive the connecting portion to rotate. Compared with the prior art, the advantages of this utility model are: the utility model has a simple structure, the motor test operation is achieved by rotating the handle, and the quality can be determined by observing whether the 30-degree waveform angle on the oscilloscope is correct.

Description

Technical Field

[0001] This utility model belongs to the field of motor installation and testing technology, and specifically relates to a phase sequence detection device. Background Technology

[0002] The manufacturing process of electric motors is complex, especially when producing the stator. The stator needs to be unwired and wired. Workers are prone to making mistakes in the A, B, C phase sequence during the stator unwire and wire-binding process. If the A, B, C phase sequence is incorrect, it may lead to serious consequences such as the motor not operating normally, the drive module burning out, or the entire motor being scrapped after assembly. Therefore, there is a need for a motor phase sequence detection device. Utility Model Content

[0003] To solve at least one of the above-mentioned technical problems, this utility model provides a phase sequence detection device, comprising:

[0004] The stator base has a stator placement slot;

[0005] Support assembly;

[0006] The test rotor includes a connecting portion that is rotatably connected to the support assembly; during testing, the test portion of the test rotor is at least partially placed in the motor stator in the stator placement slot.

[0007] A drive component connects to the connecting part and drives the connecting part to rotate.

[0008] It also includes a base plate, on which the stator base is fixed. The support assembly includes at least one rotor fixing column and a fixing plate fixed to the rotor fixing column, the rotor fixing column being detachably connected to the base plate. For example, a slot is formed in the base plate, the rotor fixing column is adapted to the slot, the size of the rotor fixing column can be configured to be slightly larger than the slot, and the outer walls of the slot and the rotor fixing column have greater friction.

[0009] The fixing plate has a first through hole, and the connecting part is rotatably connected to the first through hole. A first bearing is disposed between the connecting part and the first through hole.

[0010] The connecting portion extends upward beyond the first through hole and is fixedly connected to a first gear. The fixed plate has a second rotating groove and also includes a rotating handle. The first end of the rotating handle is rotatably connected to the second rotating groove. A second gear, meshing with the first gear, is fixed on the rotating handle. Rotating the rotating handle drives the majority of the second gears to rotate, thereby controlling the first gear to rotate and drive the test rotor to rotate. The rotating handle can be Z-shaped, and a second bearing is provided between the first end and the inner wall of the second rotating groove.

[0011] The first gear has 20 teeth, and the second gear has 60 teeth.

[0012] A kit is rotatably connected to the rotating handle.

[0013] The three-way connection of the motor stator placed in the stator placement slot is connected to an oscilloscope.

[0014] The stator base can be detachably connected to the base plate. The detachable connection can be achieved by means of screw removal, etc. The stator base can be selected according to the size of the motor stator to be tested.

[0015] The stator base has a spring-loaded limiting plate on its inner wall. When in use, the limiting plate abuts against the outer wall of the stator, accommodating stators of various diameters. The limiting plates are spaced apart and are circumferentially mounted on the inner wall of the stator base.

[0016] Compared with the prior art, the advantages of this utility model are: the utility model has a simple structure, the motor can be tested by rotating the handle, and whether it is a good product can be determined by observing whether the 30-degree waveform angle on the oscilloscope is correct. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present utility model;

[0018] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0019] Figure 3 This is a perspective view of the concealed motor stator of this utility model;

[0020] Figure 4 This is a schematic diagram of the cross-section of the limit plate in use.

[0021] Figure label:

[0022] 1. Stator base; 2. Stator placement slot; 3. Bracket assembly; 4. Test rotor; 5. Connection part; 6. Test part; 7. Drive assembly; 8. Base plate; 9. Rotor fixing column; 10. Fixing plate; 11. Slot; 12. First through hole; 13. First gear; 14. Second rotating slot; 15. Rotating handle; 16. Second gear; 17. First rod body; 18. L-shaped rod body; 20. Limiting surface; 21. Kit; 22. Motor stator; 23. Bearing; 24. Spring; 25. Limiting plate. Detailed Implementation

[0023] To enable those skilled in the art to better understand this utility model and to more clearly define the scope of protection claimed by this utility model, the present utility model is described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present utility model concept, and are only a part of the embodiments of this utility model. The specific and direct description of related structures is only for the convenience of understanding this utility model, and the specific features do not necessarily or directly limit the scope of implementation of this utility model.

[0024] Referring to the accompanying drawings, this utility model adopts the following technical solution: this utility model provides a phase sequence detection device, comprising:

[0025] The stator base 1 has a stator placement slot 2;

[0026] Support assembly 3;

[0027] The test rotor 4 includes a connecting part 5, which is rotatably connected to the support assembly 3; during testing, the test part 6 of the test rotor 4 is at least partially placed in the motor stator 22, which is placed in the stator placement slot 2.

[0028] The drive component 7 connects to the connecting part 5 and drives the connecting part 5 to rotate.

[0029] It also includes a base plate 8, on which the stator base 1 is fixed. The support assembly 3 includes at least one rotor fixing post 9 and a fixing plate 10 fixed to the rotor fixing post 9. The rotor fixing post 9 is detachably connected to the base plate 8. For example, a slot 11 is formed in the base plate 8, and the rotor fixing post 9 is adapted to the slot 11. The size of the rotor fixing post 9 can be configured to be slightly larger than the slot 11, and the outer walls of the slot 11 and the rotor fixing post 9 have greater friction.

[0030] The fixing plate 10 has a first through hole 12, and the connecting part 5 is rotatably connected to the first through hole 12. A first bearing is disposed between the connecting part 5 and the first through hole 12.

[0031] The connecting portion 5 extends upward beyond the first through hole 12 and is fixedly connected to a first gear 13. The fixing plate 10 has a second rotating groove 14 and also includes a rotating handle 15. The first end of the rotating handle 15 is rotatably connected to the second rotating groove 14. A second gear 16, meshing with the first gear 13, is fixed to the rotating handle 15. Rotating the rotating handle 15 drives the majority of the second gears 16 to rotate, thereby controlling the first gear 13 to rotate and drive the test rotor 4 to rotate. The rotating handle 15 can be Z-shaped, and a second bearing is provided between the first end and the inner wall of the second rotating groove 14.

[0032] The rotating handle 15 can be a one-piece structure, or it can be divided into a first rod 17 inserted into the second rotating groove 14 and an L-shaped rod 18 connected to the first rod 17. The L-shaped rod 18 has a connecting hole, and the outer wall of the first rod 17 has a limiting surface 20. The inner wall of the connecting hole has a mating surface that cooperates with the limiting surface 20, so that the first rod 17 can be driven to rotate when the L-shaped rod 18 rotates.

[0033] The connecting part 5 of the test rotor 4 can be directly driven, but in order to save effort, the first gear 13 has 20 teeth and the second gear 16 has 60 teeth in this utility model.

[0034] A kit 21 is rotatably connected to the rotating handle 15.

[0035] The three-way connection of the motor stator 22 placed in the stator placement slot 2 is connected to an oscilloscope to quickly and conveniently detect the correctness of the wiring sequence of the AC or DC permanent magnet synchronous motor stator 22 winding and lead wire connection.

[0036] The stator base 1 can be detachably connected to the base plate 8. The detachable connection can be achieved by means of screw removal, etc. The stator base 1 can be selected according to the size of the motor stator 22 to be tested.

[0037] When this utility model is put into use, the bracket assembly 3 is pulled out, then the previous motor stator 22 is taken out, then the motor stator 22 to be tested is placed in, the rotor fixing column 9 is inserted, the test rotor 4 is inserted into the motor stator 22 to be tested, and the three phases A, B and C of the motor stator 22 are connected to the oscilloscope through the connecting wires, which can pass through the gap between the fixing plate and the stator base.

[0038] A rotating slot can be opened on the base plate, and a bearing can be installed between the test rotor and the rotating slot, a bearing can also be installed between the test rotor and the fixed plate, and a bearing can also be installed between the first rod and the fixed plate.

[0039] The inner wall of the stator base is connected to a limiting plate 25 via a spring 24. When put into use, the limiting plate can abut against the outer wall of the stator, accommodating stators of various diameters. The limiting plates are spaced apart and are installed in a ring on the inner wall of the stator base.

[0040] Compared with the prior art, the advantages of this utility model are: the utility model has a simple structure, the motor can be tested by rotating the handle 15, and whether it is a good product can be determined by observing whether the 30-degree waveform angle on the oscilloscope is correct.

[0041] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A phase sequence detection device, characterized in that: include: The stator base (1) has a stator placement slot (2); Support assembly (3); The test rotor (4) includes a connecting part (5) which is rotatably connected to the bracket assembly (3); during testing, the test part (6) of the test rotor (4) is at least partially placed in the motor stator (22) placed in the stator placement slot (2); The drive component (7) is connected to the connecting part (5) and drives the connecting part (5) to rotate.

2. The phase sequence detection device according to claim 1, characterized in that: It also includes a base plate (8), on which the stator base (1) is fixed.

3. The phase sequence detection device according to claim 2, characterized in that: The support assembly (3) includes at least one rotor fixing column (9) and a fixing plate (10) fixed on the rotor fixing column (9). The rotor fixing column (9) is detachably connected to the base plate (8).

4. The phase sequence detection device according to claim 3, characterized in that: The fixing plate (10) has a first through hole (12), and the connecting part (5) is rotatably connected to the first through hole (12).

5. The phase sequence detection device according to claim 4, characterized in that: A first bearing is disposed between the connecting part (5) and the first through hole (12).

6. The phase sequence detection device according to claim 4, characterized in that: The connecting part (5) extends upward through the first through hole (12) and is fixedly connected to the first gear (13). The fixing plate (10) is provided with a second rotating groove (14) and also includes a rotating handle (15). The first end of the rotating handle (15) is rotatably connected to the second rotating groove (14). A second gear (16) that meshes with the first gear (13) is fixed on the rotating handle (15). The rotating handle (15) rotates to drive the majority of the second gears (16) to rotate, thereby controlling the first gear (13) to rotate to drive the test rotor (4) to rotate.

7. The phase sequence detection device according to claim 6, characterized in that: The rotating handle (15) can be Z-shaped, and a second bearing is provided between the first end and the inner wall of the second rotating groove (14).

8. The phase sequence detection device according to claim 6, characterized in that: The first gear (13) has 20 teeth and the second gear (16) has 60 teeth.

9. The phase sequence detection device according to claim 6, characterized in that: A kit (21) is rotatably connected to the rotating handle (15).

10. The phase sequence detection device according to claim 1, characterized in that: The three-way connection of the motor stator (22) placed in the stator placement slot (2) is connected to the oscilloscope.

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