External rotor motor stator test tool

Abstract

The utility model relates to an external rotor motor stator test tool, which comprises a test machine table, a guide rail, a movable frame, an induction piece, a material placing assembly and a wiring assembly, induction plates are arranged on the two sides of the movable frame, and induction pieces are arranged on the two sides of the guide rail; two material placing assemblies and two wiring assemblies are transversely arranged on a test table top of the test machine table, and each material placing assembly comprises a material placing seat, a test connecting module and a fastener; the wiring assembly comprises a wiring board, a plurality of wiring clamps, a plurality of wiring frames and a spring. The utility model has the advantages that the two groups of test stations are arranged, and the movable frame is moved back and forth to test the two groups of test stations in sequence, so that the waiting time of wiring is reduced; the wiring assembly can meet the requirements of various test items, and facilitates the connection between the stator and a corresponding test port of a test machine. The arc-shaped groove of the material placing seat is a profiling groove and is suitable for the positioning requirement of the stator of the external rotor motor, and the test connection module is pressed below the stator, so that the wiring stability is improved.

Description

Technical Field

[0001] This utility model relates to the field of motor testing technology, and in particular to a stator testing fixture for an external rotor motor. Background Technology

[0002] Routine tests for motor stator testing systems include DC resistance, insulation resistance, inter-turn testing, withstand voltage testing, and motor rotation direction testing. These tests help determine if the motor stator meets design specifications and can promptly identify any potential problems or defects. However, for stator testing of external rotor motors, poor contact issues can easily arise during the wiring and positioning of the stator before testing, leading to a higher maintenance frequency for the testing system and impacting testing efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a testing fixture for an external rotor motor stator, which can improve the positioning capability of the external rotor motor stator during testing, and improve wiring efficiency and testing efficiency.

[0004] To achieve the above-mentioned utility model objectives, this utility model provides a stator testing fixture for an external rotor motor, including a testing machine, guide rails, a moving frame, a sensing element, a material placement assembly, and a wiring assembly;

[0005] The guide rail is connected to the frame of the testing machine. The movable frame is provided with a connection hole, and the movable frame is connected to the guide rail through the connection hole. Both sides of the movable frame are provided with sensing plates, and both sides of the guide rail are provided with sensing elements. The positions of the sensing plates and the positions of the sensing elements are adapted to each other.

[0006] The testing platform of the testing machine is horizontally provided with two material placement components and two wiring components. The material placement component includes a material placement base, a test connection module, and fasteners. The material placement base is an insulating base with an arc-shaped groove in the middle. The arc-shaped groove has one or more connection grooves in the middle, and the test connection module is located in the connection groove. Mounting holes are provided on both sides of the arc-shaped groove, and the fasteners detachably fix the material placement base to the testing platform through the mounting holes.

[0007] The wiring assembly includes a wiring board, several wiring clips, several wiring frames, and a spring. A wiring module is provided inside the wiring frame. One end of each of the several wiring clips is arranged on the wiring board via the spring. The middle of each of the several wiring clips is hinged to the wiring frame. Each wiring clip has a connector, and the connector faces the wiring module.

[0008] Preferably, the end of the guide rail is provided with a limiting block.

[0009] As a further improvement to the utility model, the movable frame is equipped with a protective cover, which is located above the material placement assembly.

[0010] Furthermore, the protective cover is a transparent cover.

[0011] As a further improvement to the utility model, the wiring clamp and the wiring frame are made of insulating material.

[0012] As a further improvement to the utility model, the spring is a pagoda-type spring.

[0013] As a further improvement to the utility model, the four corners of the connecting groove are provided with clearance grooves.

[0014] As a further improvement of the utility model, the arc-shaped groove is provided with an elastic plate, the shape of which is adapted to the shape of the arc-shaped groove.

[0015] This utility model discloses a stator testing fixture for an external rotor motor. The stator is placed flat on the arc-shaped groove of one of the placement seats. The test connection module on the arc-shaped groove is electrically connected to the testing machine. One end of the test cable is connected to the wiring module corresponding to the required test item through a wiring clamp. The wiring module is electrically connected to the testing machine. The other end of the test cable is connected to the stator. After the stator is connected to the test connection module and the wiring module, the moving frame is moved to the corresponding position, causing the corresponding induction plate of the moving frame to move to the sensing position of the sensing element. The sensing element can be an existing photoelectric sensor, which converts the sensed light signal into an electrical signal and transmits it to the testing machine, so that the testing machine can test the stator on the placement seat. By moving the moving frame, the stators on the two placement seats can be tested separately, reducing the connection waiting time.

[0016] The advantages of this utility model's external rotor motor stator testing fixture compared to existing technologies are as follows:

[0017] (1) By setting up two sets of test stations and moving the mobile frame back and forth, the two sets of test stations are tested in sequence, reducing the waiting time for wiring;

[0018] (2) The wiring assembly can meet the needs of various test items and facilitates the connection of the stator to the corresponding test port of the test machine;

[0019] (3) The arc groove of the material holder is a contour groove, which is suitable for the positioning requirements of the stator of the external rotor motor, and the test connection module is pressed under the stator to improve the wiring stability. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a stator testing fixture for an external rotor motor according to the present invention;

[0021] Figure 2This is a schematic diagram showing the location of the sensor.

[0022] Figure 3 This is a schematic diagram of the material placement component structure;

[0023] Figure 4 This is a schematic diagram of the wiring assembly structure;

[0024] Figure 5 This is a schematic diagram of the wiring structure of the wiring assembly. Detailed Implementation

[0025] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0026] like Figure 1-2 As shown, the present invention provides a stator testing fixture for an external rotor motor, comprising a testing machine base 1, a guide rail 2, a moving frame 3, a sensing element 4, a material placement assembly 5, and a wiring assembly 6.

[0027] The guide rail 2 is connected to the frame 1 of the test machine 1. The movable frame 3 is provided with a connection hole 31, and the movable frame 3 is connected to the guide rail 2 through the connection hole 31. Both sides of the movable frame 3 are provided with a sensor plate 33, and both sides of the guide rail 2 are provided with a sensor 4. The positions of the sensor plate 33 and the sensor 4 are matched.

[0028] The test platform of the testing machine 1 is horizontally equipped with two material placement components 5 and two wiring components 6, such as... Figure 3 As shown, the material placement assembly 5 includes a material placement base 51, a test connection module 54, and fasteners 56. The material placement base 51 is an insulating base to avoid interference with the test and enhance test safety. The material placement base 51 has an arc-shaped groove 52 in the middle, and one or more connecting grooves 53 in the middle of the arc-shaped groove 52. The test connection module 54 is located in the connecting groove 53. Mounting holes 55 are provided on both sides of the arc-shaped groove 52. The fasteners 56 detachably fix the material placement base 51 to the test table through the mounting holes 55, which facilitates the replacement of material placement bases 51 of different sizes to meet the material placement requirements of stators of different sizes.

[0029] Because the stator's curved surface presses against the test connection module 54 to achieve the connection, the test connection module 54 is easily damaged. However, due to the small size of the actual test connection module 54, it is difficult to quickly remove and install it from the slot. The four corners of the connection slot 53 are provided with clearance slots 531, which allow for quick removal and installation of the test connection module 54, facilitating rapid replacement of the test connection module 54.

[0030] After frequent pressure, the surface of the arc-shaped groove 52 becomes damaged, resulting in an uneven surface that can easily lead to poor contact with the test connection module 54. The arc-shaped groove 52 is equipped with an elastic plate 57, the shape of which is adapted to the shape of the arc-shaped groove 52. The elastic plate 57 is in close contact with the arc-shaped outer wall of the stator. Compared to the rigid contact between the arc-shaped groove 52 and the stator, the elastic plate 57 provides a buffering effect, ensuring that the outer wall of the stator is completely connected to the test connection module 54.

[0031] like Figure 4-5 As shown, the wiring assembly 6 includes a wiring plate 61, several wiring clips 62, several wiring frames 63, and a spring 64. A wiring module 631 is provided inside the wiring frame 63. One end of the several wiring clips 62 is arranged on the wiring plate 61 through the spring 64. The middle part of the several wiring clips 62 is hinged to the wiring frame 63. The wiring clips 62 are provided with connectors 621, and the connectors 621 face the wiring module 631.

[0032] This utility model discloses a stator testing fixture for an external rotor motor. The stator is placed flat on the arc-shaped groove 52 of one of the placement seats 51. The test connection module 54 on the arc-shaped groove 52 is electrically connected to the test machine 1. One end of the test cable 7 is connected to the wiring module 631 corresponding to the required test item through the wiring clamp 62. The wiring module 631 is electrically connected to the test machine 1, and the other end of the test cable 7 is connected to the stator. After the stator is connected to the test connection module 54 and the wiring module 631, the moving frame 3 is moved to the corresponding position, and the corresponding sensing plate 33 of the moving frame 3 is moved to the sensing position of the sensing element 4. The sensing element 4 can be an existing photoelectric sensor, which converts the sensed light signal into an electrical signal and transmits it to the test machine 1, so that the test machine 1 can test the stator on the placement seat 51. By moving the moving frame 3, the stators on the two placement seats 51 can be tested separately, reducing the connection waiting time.

[0033] The end of the guide rail 2 is provided with a limiting block 21, which can limit the movement of the movable frame 3 on the guide rail 2, so that after the movable frame 3 moves back and forth, the sensing plate 33 can quickly reach the sensing position of the sensing element 4.

[0034] The movable frame 3 is equipped with a protective cover 32, which is located above the material placement assembly 5. When the stator is being tested, the protective cover 32 can provide protection and prevent danger caused by high voltage. The protective cover 32 is preferably a transparent cover, which allows operators to observe the stator status in real time.

[0035] The wiring assembly 6 can meet the electrical connection requirements of multiple tests. Each wiring module 631 connects to different test ports of the test equipment 1, and wiring modules 631 at different locations can be selected as needed. By pressing the end of the wiring clamp 62 and clamping the test cable 7 between the target wiring module 631 and the connector 621, the electrical connection between the test cable 7 and the test equipment 1 is tested. The wiring clamp 62 and the wiring frame 63 are preferably made of insulating material to avoid affecting the test results and operational safety.

[0036] The spring 64 clamps the wires of the connector 62. The spring 64 is preferably a pagoda-type spring to improve the service life of the spring and prevent the spring 64 from loosening after high-frequency use, which would lead to poor connection of the test cable 7 and affect the test results.

[0037] The preferred embodiments of this utility model have been described in detail above, but this utility model is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this utility model, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. An outer rotor electric machine stator testing tool characterized by, The utility model relates to a test machine platform, guide rail, moving frame, inductor, material placing assembly and wiring assembly. The guide rail is connected to the frame of the test machine platform, the moving frame is provided with a connecting hole, and the moving frame is connected to the guide rail through the connecting hole. The test bench top of the test machine platform is provided with two material placing assemblies and two wiring assemblies, the material placing assembly comprises a material placing seat, a test connecting module and a fastener, the material placing seat is an insulating seat, the middle part of the material placing seat is provided with an arc-shaped groove, the middle part of the arc-shaped groove is provided with one or more connecting grooves, and the test connecting module is located in the connecting groove. The wiring assembly comprises a wiring board, a plurality of wiring clips, a plurality of wiring frames and a spring, the wiring frame is provided with a wiring module, one end of the wiring clip is arranged on the wiring board through the spring, the middle part of the wiring clip is hinged to the wiring frame, the wiring clip is provided with a connecting head, and the connecting head faces the wiring module.

2. An outer rotor electric machine stator testing fixture as claimed in claim 1, wherein, The end of the guide rail is provided with a limiting block.

3. An outer rotor electric machine stator testing fixture as set forth in claim 1 wherein, The moving frame is provided with a protective cover, and the protective cover is located above the material placing assembly.

4. An outer rotor electric machine stator testing fixture as set forth in claim 3 wherein, The protective cover is a transparent cover body.

5. An outer rotor electric machine stator testing fixture as set forth in claim 1 wherein, The wiring clip and the wiring frame are made of insulating material.

6. An outer rotor electric machine stator testing fixture as set forth in Claim 1, characterized in that, The spring is a pagoda-shaped spring.

7. An outer rotor electric motor stator testing fixture as defined in claim 1 wherein, The four corners of the connecting groove are provided with a clearance groove.

8. An outer rotor electric motor stator testing fixture as defined in claim 1 wherein, The arc-shaped groove is provided with an elastic plate, and the shape of the elastic plate is matched with the shape of the arc-shaped groove.

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