Auxiliary device based on motor turn-to-turn short circuit fault detection

Abstract

The utility model discloses an auxiliary device based on motor turn-to-turn short circuit fault detection, which belongs to the technical field of turn-to-turn short circuit testers, and comprises a tester body, two heat insulation plates are arranged on the tester body, heat dissipation aluminum substrate bodies are arranged in the heat insulation plates, the heat dissipation aluminum substrate bodies are in contact with the tester body, and the heat dissipation aluminum substrate bodies are in contact with the tester body. A clamping groove is formed in the lower portion of the heat insulation plate. According to the auxiliary device for motor turn-to-turn short circuit fault detection, through the arrangement of the movable plate, the limiting rods, the springs, the clamping blocks, the clamping grooves and the limiting holes, under the mutual cooperation of the movable plate, the limiting rods, the springs, the clamping blocks, the clamping grooves and the limiting holes, the situation that the heat dissipation aluminum substrate body is generally fixedly installed one by one through a plurality of bolts is further avoided; and meanwhile, the limiting rods are in contact with and separated from the limiting holes, so that the heat dissipation aluminum substrate body can be quickly mounted and dismounted, and the heat dissipation aluminum substrate body can be more conveniently and quickly mounted and dismounted.

Description

Technical Field

[0001] The utility model belongs to the technical field of inter-turn short-circuit testers, in particular to an auxiliary device for detecting inter-turn short-circuit faults of motors. Background Art

[0002] When a short circuit occurs between turns of the motor, a turn-to-turn short-circuit tester is needed to detect the fault. The turn-to-turn short-circuit tester is a special auxiliary test instrument mainly used to test whether there is a short circuit fault between the stator coil package of the motor, single winding or multi-winding coil layers.

[0003] However, during the use of the existing inter-turn short-circuit tester, in order to achieve the purpose of heat dissipation, the inter-turn short-circuit tester usually adopts a method of installing a heat dissipation aluminum substrate on the outside for auxiliary heat dissipation, and the heat dissipation aluminum substrate is usually fixed and installed one by one with multiple bolts. However, this installation method is inconvenient to replace the heat dissipation aluminum substrate and the operation is relatively troublesome. Therefore, an auxiliary device based on motor inter-turn short-circuit fault detection is needed to improve the above problem. Utility Model Content

[0004] In order to overcome the above defects, the utility model provides an auxiliary device for detecting motor inter-turn short-circuit faults, which solves the problem that the heat dissipation aluminum substrate is usually fixed and installed one by one with multiple bolts, but this installation method is inconvenient to replace the heat dissipation aluminum substrate and the operation is relatively troublesome.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an auxiliary device based on the detection of motor inter-turn short-circuit faults, comprising a tester body, two heat insulation plates are arranged on the tester body, a heat dissipation aluminum substrate body is arranged inside the heat insulation plates, the heat dissipation aluminum substrate body is in contact with the tester body, a card slot is opened under the heat insulation plate, a card block is overlapped in the card slot, a limiting hole is opened on the side of the card block, a placement groove is opened on the side of the heat insulation plate, a sliding sleeve is arranged in the placement groove, and a limiting rod is slidably connected in the sliding sleeve.

[0006] As a further solution of the utility model: a support frame is provided on the front side of the tester body, and a limiting groove is provided in the support frame.

[0007] As a further solution of the utility model: a protective plate is overlapped in the limiting groove, and handles are provided on both sides of the tester body.

[0008] As a further solution of the utility model: a movable plate is provided at the other end of the limit rod, and a spring is provided on the side of the limit rod.

[0009] As a further solution of the utility model: one end of the spring is connected to the placement slot, and the other end of the spring is connected to the movable plate.

[0010] As a further solution of the utility model: the clamping block is connected to the tester body, and the limiting rod is overlapped with the limiting hole.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The auxiliary device for detecting short-circuit faults between turns of a motor further avoids the situation that the heat dissipation aluminum base plate body is usually fixed and installed one by one by using multiple bolts by arranging a movable plate, a limit rod, a spring, a clamping block, a clamping slot and a limit hole. At the same time, the contact and separation of the limit rod and the limit hole can quickly realize the installation and disassembly of the heat dissipation aluminum base plate body, thereby making the installation and disassembly operations of the heat dissipation aluminum base plate body more convenient and quick.

[0013] 2. The auxiliary device for detecting motor inter-turn short-circuit faults is provided with a support frame, a limit slot and a protective plate. With the cooperation of the support frame, the limit slot and the protective plate, the protective plate can cover the front end components of the tester body, thereby further improving the front end protection performance of the tester body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the cross section of the heat insulation board of the utility model;

[0016] Figure 3 For this utility model Figure 2 The structural diagram of the enlarged part A in the middle;

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the card block of the utility model;

[0018] In the figure: 1. Tester body; 2. Handle; 3. Movable plate; 4. Heat dissipation aluminum base plate body; 5. Support frame; 6. Protective plate; 7. Limiting groove; 8. Heat insulation board; 9. Placement groove; 10. Sliding sleeve; 11. Spring; 12. Limiting rod; 13. Card slot; 14. Card block; 15. Limiting hole. DETAILED DESCRIPTION

[0019] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0020] like Figure 1-4As shown, the utility model provides a technical solution: an auxiliary device for detecting short-circuit faults between turns of a motor, comprising a tester body 1, two heat insulation plates 8 are arranged on the tester body 1, a heat dissipation aluminum substrate body 4 is arranged in the heat insulation plate 8, the heat dissipation aluminum substrate body 4 is in contact with the tester body 1, a card slot 13 is provided under the heat insulation plate 8, a card block 14 is overlapped in the card slot 13, by setting the card slot 13 and the card block 14, the card slot 13 plays a supporting and limiting role on the card block 14, thereby ensuring that the card block 14 will not shake randomly in the card slot 13, a limiting hole 15 is provided on the side of the card block 14, the card block 14 is connected to the tester body 1, a placement groove 9 is provided on the side of the heat insulation plate 8, a sliding sleeve 10 is provided in the placement groove 9, by setting the sliding sleeve 10, the sliding sleeve 10 plays a supporting and limiting role on the limit rod 12, thereby making the limit rod 12 slide smoothly in the sliding sleeve 10;

[0021] The sliding sleeve 10 is slidably connected with a limit rod 12, and the limit rod 12 overlaps with the limit hole 15. By setting the limit rod 12 and the limit hole 15, the limit hole 15 supports and limits the limit rod 12, so that the limit rod 12 moves smoothly in the limit hole 15. The other end of the limit rod 12 is provided with a movable plate 3, and the side of the limit rod 12 is provided with a spring 11. By setting the spring 11, the spring 11 provides elastic force and makes the limit rod 12 stably contact with the limit hole 15. One end of the spring 11 is The placement slot 9 is connected, and the other end of the spring 11 is connected to the movable plate 3. A support frame 5 is provided on the front of the tester body 1. A limiting slot 7 is provided in the support frame 5. A protective plate 6 is overlapped in the limiting slot 7. By setting the limiting slot 7 and the protective plate 6, the limiting slot 7 supports and limits the protective plate 6, so that the protective plate 6 is stably located at the front end of the tester body 1. At the same time, the protective plate 6 and the limiting slot 7 are controlled to separate so that the tester body 1 can be used. Handles 2 are provided on both sides of the tester body 1.

[0022] The working principle of the utility model is:

[0023] When the heat dissipation aluminum substrate body 4 needs to be installed, firstly, the two movable plates 3 are controlled to move away from each other, so that the two movable plates 3 drive the two limit rods 12 to move away from each other, until the limit rods 12 are retracted into the sliding sleeve 10, and the spring 11 is stretched, and then the heat insulation plate 8 is controlled to drive the heat dissipation aluminum substrate body 4 to contact with the tester body 1, so that the clamping block 14 is aligned with the clamping slot 13, and then the heat insulation plate 8 is controlled to move downward;

[0024] When the limit rod 12 moves to the position of the limit hole 15, the two movable plates 3 are released. In order to restore their own shapes, the two springs 11 drive the two movable plates 3 to reset. The two movable plates 3 drive the two limit rods 12 towards each other and push the limit rods 12 into the limit hole 15, thereby successfully completing the installation and fixation of the heat dissipation aluminum substrate body 4 and the tester body 1.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0026] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. An auxiliary device for detecting a short-circuit fault between turns of a motor, comprising a tester body (1), characterized in that: The tester body (1) is provided with two heat insulation plates (8), a heat dissipation aluminum substrate body (4) is provided inside the heat insulation plates (8), the heat dissipation aluminum substrate body (4) is in contact with the tester body (1), a card slot (13) is provided under the heat insulation plates (8), a card block (14) is overlapped in the card slot (13), a limiting hole (15) is provided on the side of the card block (14), a placement groove (9) is provided on the side of the heat insulation plates (8), a sliding sleeve (10) is provided in the placement groove (9), and a limiting rod (12) is slidably connected in the sliding sleeve (10).

2. The auxiliary device for detecting motor turn-to-turn short-circuit fault according to claim 1, characterized in that: A support frame (5) is provided on the front of the tester body (1), and a limiting groove (7) is provided in the support frame (5).

3. The auxiliary device for detecting motor turn-to-turn short-circuit fault according to claim 2, characterized in that: A protective plate (6) is overlapped in the limiting groove (7), and handles (2) are provided on both sides of the tester body (1).

4. The auxiliary device for detecting motor turn-to-turn short-circuit fault according to claim 1, characterized in that: A movable plate (3) is provided at the other end of the limiting rod (12), and a spring (11) is provided on the side surface of the limiting rod (12).

5. The auxiliary device for detecting motor turn-to-turn short-circuit fault according to claim 4 is characterized in that: One end of the spring (11) is connected to the placement groove (9), and the other end of the spring (11) is connected to the movable plate (3).

6. The auxiliary device for detecting motor turn-to-turn short-circuit fault according to claim 1, characterized in that: The clamping block (14) is connected to the tester body (1), and the limiting rod (12) is overlapped with the limiting hole (15).

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