Asynchronous motor stator winding leakage tester

Abstract

The utility model provides an asynchronous motor stator winding leakage tester, comprising: a box cover and a clamping bin, wherein the lower end of the box cover is provided with a box body for externally protecting a current voltage detector and a current detector, and the front end of the box body is provided with two sets of side doors, the left side door is provided with a current voltage detector for displaying the current situation, and the right side door is provided with a control panel for controlling the position movement of an upper clamping platform and a lower clamping seat. Compared with the prior art, the utility model has the following beneficial effects: the utility model is convenient to move by using moving wheels and supporting feet, the leakage potential energy of the asynchronous motor stator winding is detected by using the current detector and the current voltage detector, the asynchronous motor stator winding is clamped by using the upper clamping platform and the lower clamping seat, and the asynchronous motor stator winding is clamped for insulation protection by using an insulating cushion.

Description

Technical Field

[0001] The utility model belongs to the technical field of asynchronous motor stator windings and relates to an asynchronous motor stator winding leakage tester. Background Art

[0002] The stator winding is a collection of coils mounted on fixed parts, usually arranged along the slots of the motor core. Its main function is to connect to the three-phase power supply and generate a rotating magnetic field in the air gap through the input current. This rotating magnetic field interacts with the rotor magnetic field to generate a rotational torque, thereby driving the rotor to rotate. However, when the stator winding of the asynchronous motor leaks and cannot be detected, it will cause a series of serious problems. These problems not only affect the normal operation of the motor, but may also cause harm to the entire power system.

[0003] The leakage phenomenon will cause part of the electric energy to be lost in the form of heat energy inside the motor, which not only increases the energy consumption of the motor, but also reduces the output power of the motor. At the same time, leakage may also cause the temperature of the motor to rise, thereby accelerating the aging of the insulation material and shortening the service life of the motor.

[0004] Leakage current may flow to the ground through the metal casing of the motor. If the motor casing is not properly grounded, the leakage current may cause electric shock to the human body. In addition, leakage may also cause serious accidents such as fire, especially when the motor is in a bad operating environment or has poor heat dissipation. The temperature rise caused by leakage may cause fire risks. Therefore, there is an urgent need for an asynchronous motor stator winding leakage tester to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide an asynchronous motor stator winding leakage tester to solve the problems raised in the above background technology.

[0006] The utility model is realized by the following technical scheme: an asynchronous motor stator winding leakage tester comprises: a box cover and a clamping bin, wherein the lower end of the box cover is provided with a box body for externally protecting a current and voltage detector and a current detector;

[0007] The front end of the box is provided with two sets of side doors, the left side door is provided with a current and voltage detector for displaying the current situation, and the right side door is provided with a control panel for controlling the position movement of the upper clamping table and the lower clamping seat;

[0008] A support frame for providing a supporting effect is provided at the lower end of the box body, two groups of supporting frames for carrying other equipment are provided inside the support frame, and four groups of supporting feet for connecting to moving wheels are provided at the lower end of the supporting frame. The moving wheels and supporting feet can be used to facilitate the movement of the utility model.

[0009] As a preferred embodiment, a group of moving wheels are provided at the lower end of the support foot, a table for supporting the equipment is provided at the upper end of the support frame, and a group of current and voltage detectors for current detection of the stator of the asynchronous motor are provided at the upper left end of the table.

[0010] As a preferred embodiment, a group of insulating bases for preventing conduction are provided at the upper and lower ends of the current and voltage detector, and a group of current detectors for performing leakage detection on the stator of the asynchronous motor are provided at the upper right end of the table top. The leakage potential energy of the stator winding of the asynchronous motor can be detected by using the current detector and the current and voltage detector.

[0011] As a preferred embodiment, the upper end of the current detector is provided with a group of lower clamping seats for clamping the lower end of the asynchronous motor stator winding, and the upper end of the lower clamping seat is provided with a group of asynchronous motor stator windings for leakage detection, and the asynchronous motor stator winding can be clamped by using an upper clamping table and a lower clamping seat.

[0012] As a preferred embodiment, the upper end of the asynchronous motor stator winding is provided with an upper clamping table for clamping the upper end, and the lower end of the upper clamping table and the upper end of the lower clamping seat are provided with a group of insulating pads for clamping the asynchronous motor stator winding. The insulating pads can be used to perform insulation and protective clamping of the asynchronous motor stator winding.

[0013] As a preferred embodiment, a group of power wires for contacting the lower end of the stator winding of the asynchronous motor are provided at the upper end of the lower clamping seat, and the power wires are electrically connected to the current detector and the current and voltage detector respectively.

[0014] As a preferred embodiment, the upper end of the upper clamping table and the lower end of the lower clamping seat are each provided with a group of electric cylinders for controlling the upper clamping table and the lower clamping seat, and both groups of electric cylinders are controlled by a group of control panels.

[0015] After adopting the above technical scheme, the beneficial effects of the utility model are: by using moving wheels and supporting feet to facilitate the movement of the utility model, by using a current detector and a current and voltage detector to detect the leakage potential energy of the stator winding of the asynchronous motor, by using an upper clamping table and a lower clamping seat to clamp the stator winding of the asynchronous motor, and by using an insulating cushion to perform insulation and protective clamping on the stator winding of the asynchronous motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a schematic diagram of the structure of the stator winding leakage tester of an asynchronous motor of the utility model, viewed from the top at the left front oblique side;

[0018] Figure 2 It is a schematic diagram of the structure of the stator winding leakage tester of an asynchronous motor of the utility model, viewed from the right oblique front side inside the box;

[0019] Figure 3 It is a front top view of the inner side of the insulation cover in the stator winding leakage tester of the asynchronous motor of the utility model;

[0020] Figure 4 It is a schematic diagram of the structure of the stator winding leakage tester of an asynchronous motor of the utility model, viewed from the left front oblique side inside the clamping bin;

[0021] In the figure: 100 - box cover, 110 - box body, 120 - display screen, 130 - side door, 140 - control panel, 150 - support frame, 160 - load-bearing frame, 170 - support foot, 180 - moving wheel, 190 - current and voltage detector, 200 - insulating base, 210 - insulating cover, 220 - upper clamping table, 230 - lower clamping seat, 240 - current detector, 250 - clamping bin. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 4 , an asynchronous motor stator winding leakage tester, comprising: a box cover 100, a box body 110, a current detector 240 and a clamping compartment 250, wherein the box cover 100 is provided at the lower end with the box body 110 for externally protecting the current and voltage detector 190 and the current detector 240;

[0024] Two sets of side doors 130 are provided at the front end of the box body 110. A current and voltage detector 190 for displaying the current condition is provided inside the left side door 130. A control panel 140 for controlling the position movement of the upper clamping platform 220 and the lower clamping seat 230 is provided inside the right side door 130.

[0025] A support frame 150 for providing a supporting effect is provided at the lower end of the box body 110. Two groups of supporting frames 160 for carrying other equipment are provided inside the support frame 150. Four groups of supporting feet 170 for connecting to moving wheels 180 are provided at the lower end of the supporting frame 160. The moving wheels 180 and the supporting feet 170 can be used to facilitate the movement of the utility model.

[0026] A group of moving wheels 180 for movement are provided at the lower end of the support foot 170, a table for supporting the equipment is provided at the upper end of the support frame 150, and a group of current and voltage detectors 190 for current detection of the stator of the asynchronous motor are provided at the upper left end of the table.

[0027] A group of insulating bases 200 for preventing conduction are provided at the upper and lower ends of the current and voltage detector 190, and a group of current detectors 240 for leakage detection of the stator of the asynchronous motor are provided at the upper right end of the table. The leakage potential energy of the stator winding of the asynchronous motor can be detected by using the current detectors 240 and the current and voltage detector 190.

[0028] A group of lower clamping seats 230 for clamping the lower end of the asynchronous motor stator winding are provided at the upper end of the current detector 240, and a group of asynchronous motor stator windings for leakage detection are provided at the upper end of the lower clamping seat 230. The asynchronous motor stator winding can be clamped by using the upper clamping table 220 and the lower clamping seat 230.

[0029] An upper clamping platform 220 for clamping the upper end of the asynchronous motor stator winding is provided at the upper end, and a group of insulating pads for clamping the asynchronous motor stator winding are provided at the lower end of the upper clamping platform 220 and the upper end of the lower clamping seat 230. The insulating pads can be used to perform insulation and protective clamping of the asynchronous motor stator winding.

[0030] A group of power wires for contacting the lower end of the stator winding of the asynchronous motor is disposed at the upper end of the lower clamping seat 230 . The power wires are electrically connected to the current detector 240 and the current and voltage detector 190 , respectively.

[0031] A group of electric cylinders for controlling the upper clamping platform 220 and the lower clamping seat 230 are provided at the upper end of the upper clamping platform 220 and the lower end of the lower clamping seat 230 . Both groups of electric cylinders are controlled by a group of control panels 140 .

[0032] See also Figure 1-Figure 4, as the first embodiment of the utility model: in order to solve the problem that leakage phenomenon will cause part of the electric energy to be lost in the form of heat energy inside the motor, which not only increases the energy consumption of the motor, but also reduces the output power of the motor. Leakage may also cause the temperature of the motor to rise, thereby accelerating the aging of the insulating material and shortening the service life of the motor. First, the staff will place the asynchronous motor stator winding to be detected inside the insulating cover 210, and make the lower end of the asynchronous motor stator winding and the clamping bin 250 fit together and position each other, then clamp the upper end of the asynchronous motor stator winding with the upper clamping shell, and then support the lower end of the asynchronous motor stator winding with the lower clamping seat 230. Since a group of insulating pads for clamping the asynchronous motor stator winding are provided at the lower end of the upper clamping table 220 and the upper end of the lower clamping seat 230, the insulating pads can protect the asynchronous motor stator. Then, the leakage electric energy generated by the asynchronous motor stator winding is transmitted to the current and voltage detector 190 and the current detector 240 through the power supply wire, and the leakage potential energy is detected.

[0033] See also Figure 1-Figure 4 , as the second embodiment of the utility model: based on the description in the above embodiments, further, since a group of electric cylinders for controlling the upper clamping table 220 and the lower clamping seat 230 are provided at the upper end of the upper clamping table 220 and the lower clamping seat 230, both groups of electric cylinders are controlled by a group of control panels 140. When the staff detects the stator windings of asynchronous motors of different specifications, the staff can clamp them according to the upper clamping table 220 and the lower clamping seat 230, and detect the stator windings of asynchronous motors of different specifications.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Asynchronous motor stator winding leakage tester, including: A box cover (100), a box body (110), a current and voltage detector (190), and a clamping compartment (250), characterized in that: a box body (110) for externally protecting the current and voltage detector (190) and the current detector (240) is provided at the lower end of the box cover (100); The front end of the box body (110) is provided with two sets of side doors (130), the left side door (130) is provided with a current and voltage detector (190) for displaying the current situation, and the right side door (130) is provided with a control panel (140) for controlling the position movement of the upper clamping platform (220) and the lower clamping seat (230); A support frame (150) for providing a supporting effect is provided at the lower end of the box body (110); two groups of support frames (160) for carrying other equipment are provided inside the support frame (150); and four groups of support feet (170) for connecting to moving wheels (180) are provided at the lower end of the support frame (160).

2. The asynchronous motor stator winding leakage tester according to claim 1, characterized in that: A group of moving wheels (180) for movement are provided at the lower end of the support foot (170), a table for supporting the device is provided at the upper end of the support frame (150), and a group of current and voltage detectors (190) for detecting current of the stator of the asynchronous motor are provided at the upper left end of the table.

3. The asynchronous motor stator winding leakage tester according to claim 2, characterized in that: A group of insulating bases (200) for preventing conduction are provided at the upper and lower ends of the current and voltage detector (190), and a group of current detectors (240) for performing leakage detection on the stator of the asynchronous motor are provided at the upper right end of the table.

4. The asynchronous motor stator winding leakage tester according to claim 3, characterized in that: A group of lower clamping seats (230) for clamping the lower end of the asynchronous motor stator winding are provided at the upper end of the current detector (240), and a group of asynchronous motor stator windings for leakage detection are provided at the upper end of the lower clamping seat (230).

5. The asynchronous motor stator winding leakage tester according to claim 4, characterized in that: The upper end of the asynchronous motor stator winding is provided with an upper clamping platform (220) for clamping the upper end, and the lower end of the upper clamping platform (220) and the upper end of the lower clamping seat (230) are provided with a group of insulating soft pads for clamping the asynchronous motor stator winding.

6. The asynchronous motor stator winding leakage tester according to claim 5, characterized in that: A group of power leads for contacting the lower end of the stator winding of the asynchronous motor are provided at the upper end of the lower clamping seat (230), and the power leads are electrically connected to the current detector (240) and the current and voltage detector (190) respectively.

7. The asynchronous motor stator winding leakage tester according to claim 5, characterized in that: A group of electric cylinders for controlling the upper clamping platform (220) and the lower clamping seat (230) are provided at the upper end of the upper clamping platform (220) and the lower end of the lower clamping seat (230), and both groups of electric cylinders are controlled through a group of control panels (140).

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