Protective device for voltage-withstanding testing machine

Abstract

The utility model discloses a protective device for a withstand voltage tester, which comprises a bottom plate and a shell, and is characterized in that a motor seat is arranged on the bottom plate and is used for placing a motor; the shell is rotationally connected to the bottom plate and provided with a high-voltage metal probe, and when the shell covers the motor base, the high-voltage probe is electrically connected with the motor; a protective cover is arranged on the periphery of the high-voltage metal probe, and the bottom plate, the motor base, the shell and the protective cover are all insulators. According to the technical scheme, the bottom plate, the motor base, the shell and the protective cover are all made of insulating materials, when the shell covers the motor on the motor base, the high-voltage probe is just electrically connected with a motor screw, and then a power line and a Hall line of the motor are electrically connected with a high-voltage machine for detection, so that the electric shock risk of operators is reduced; and the vibrating needle on the shell is automatically aligned with the motor screw, so that the test accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to a protective device for a withstand voltage test machine. Background Art

[0002] After the motor is assembled, it needs to be subjected to a high voltage withstand test. The high voltage withstand test is a method of inspecting the insulation performance of the motor. It checks whether the motor has sufficient insulation strength by applying a voltage higher than the normal operating voltage to the motor.

[0003] The operating steps of the currently used voltage withstand test device are as follows: turn on the high-voltage machine; place the motor to be tested into the fixed motor device; connect the motor to the high-voltage machine ground wire; the operator holds the high-voltage rod and presses the high-voltage rod against the motor screw; presses the high-voltage machine start button to perform the voltage withstand test. After the test is completed, the power is automatically cut off and the results are given.

[0004] However, the old withstand voltage test device has the following disadvantages in terms of safety:

[0005] 1. During the entire test process, the motor and high-voltage rod are completely exposed to the outside. The operator may come into contact with the high-voltage rod, resulting in the risk of electric shock.

[0006] 2. During the test, the operator holds the high-voltage probe and relies solely on visual inspection to ensure that the probe contacts the motor screw. This can lead to inaccurate testing due to the probe not contacting the screw. Alternatively, the operator could slip during the test, causing the probe to contact their body and potentially cause an electric shock. Utility Model Content

[0007] The main purpose of the utility model is to provide a protective device for a withstand voltage tester, aiming to solve the technical problems of electric shock hazard and inaccurate testing in existing withstand voltage test devices.

[0008] To achieve the above-mentioned purpose, the present invention provides a pressure test machine protection device, which includes:

[0009] A bottom plate, wherein a motor seat is provided on the bottom plate for placing the motor;

[0010] A housing is rotatably connected to the bottom plate, the housing is provided with a high-voltage metal probe, and when the housing covers the motor seat, the high-voltage probe is electrically connected to the motor;

[0011] Wherein, a protective cover is provided on the periphery of the high-voltage metal probe, and the base plate, the motor seat, the shell and the protective cover are all insulators.

[0012] Optionally, the high-voltage metal probe has two ends respectively arranged inside and outside the housing.

[0013] Optionally, the protective cover is arranged outside the housing and has an opening for facing the end of the high-voltage metal probe.

[0014] Optionally, a terminal base is provided on the bottom plate for electrically connecting the power supply and the Hall line of the motor.

[0015] Optionally, the housing is further provided with a through hole, through which the ground wire of the high voltage machine passes and is electrically connected to the terminal block base.

[0016] Optionally, the shell and the base plate are hingedly connected via a hinge.

[0017] Optionally, a handle is provided on the shell.

[0018] Optionally, the motor seat has an inner contour adapted to the outer contour of the motor to fix the motor.

[0019] Optionally, a contact surface of the bottom plate corresponding to the shell is provided with an anti-collision pad.

[0020] Optionally, an anti-collision pad is provided on the outer surface of the shell.

[0021] In the technical solution of the present invention, the base plate, motor base, casing and protective cover are all made of insulating materials. When the casing covers the motor on the motor base, the high-voltage metal probe is electrically connected to the motor screws, and then the power cord and Hall line of the motor are electrically connected to the high-voltage machine for detection, which reduces the risk of electric shock for the operator, and the spring pins on the casing and the motor screws are automatically aligned, thereby improving the accuracy of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0023] Figure 1 This is a three-dimensional structural diagram of an embodiment of a protective device for a withstand voltage test machine provided by the present invention;

[0024] Figure 2 yes Figure 1 A three-dimensional diagram of the middle structure;

[0025] Figure 3 yes Figure 1 Top view in

[0026] Figure 4 yes Figure 3 Cross-sectional view of section AA.

[0027] Figure: Voltage withstand test machine protective device 100, base plate 1, motor base 2, housing 3, through hole 31, high-voltage metal probe 4, protective cover 5, opening 51, terminal block base 6, hinge 7, handle 8, anti-collision pad 9, motor 200.

[0028] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0030] In order to better describe and illustrate the embodiments of the present application, reference may be made to one or more drawings, but the additional details or examples used to describe the drawings should not be considered as limiting the scope of the utility model invention of the present application, any of the currently described embodiments or preferred methods.

[0031] In the description of the present invention, it should be noted that the terms "length", "width", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate that the device referred to must have a specific orientation or operate in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0033] Current conventional withstand voltage test equipment has the following safety drawbacks: During the entire test, the motor and high-voltage rod are completely exposed, posing a risk of contact between the operator and the rod, potentially resulting in electric shock. During the test, the operator holds the rod and relies solely on visual inspection to ensure contact between the rod probe and the motor screw. This poses a risk of inaccurate testing due to the probe not contacting the screw, and a risk of the operator slipping during the test, causing the probe to contact their body and potentially causing electric shock.

[0034] In view of this, the utility model proposes a pressure test machine protection device, Figure 1-4For an embodiment of the pressure test machine protection device provided by the present invention, please refer to Figure 1-4 The pressure test machine protection device 100 includes a base plate 1 and a shell 3.

[0035] Specifically, a motor base 2 is fixedly provided on the base plate 1, and the motor 200 can be placed in the motor base 2; the outer shell 3 is rotatably connected to the base plate 1, and can be opened to place the motor 200, and then cover the motor base 2 and the motor 200 thereon. The outer shell 3 is provided with a high-voltage metal probe 4. When the outer shell 3 covers the motor base 2, the high-voltage probe 4 is electrically connected to the screw of the motor 200 on the motor base 2. Among them, a protective cover 5 is provided on the outer periphery of the high-voltage metal probe 4, and the base plate 1, the motor base 2, the outer shell 3 and the protective cover 5 are all insulators. In this embodiment, the base plate 1 is made of insulating bakelite, and the outer shell 3 is made of acrylic. It should be noted that the base plate 1 and the motor base 2 are integrally formed.

[0036] In the technical solution of the present invention, the base plate 1, the motor base 2, the casing 3 and the protective cover 5 are all made of insulating materials. When the casing 3 covers the motor 200 on the motor base 2, the high-voltage metal probe 4 is just electrically connected to the motor 200 screw, and then the power line and the Hall line of the motor 200 are electrically connected to the high-voltage machine for detection, which reduces the risk of electric shock for the operator, and the spring pin on the casing 3 and the motor 200 screw are automatically aligned, thereby improving the accuracy of the test.

[0037] To facilitate the operator to hold the high voltage rod to touch the probe 4, please refer to Figure 4 In one embodiment of the present invention, the high-voltage metal probe 4 has two ends respectively arranged inside and outside the shell 3, one end inside the shell 3 is electrically connected to the motor 200, and one end outside the shell 3 is electrically connected to the high-voltage rod.

[0038] Further, to better reduce the risk of electric shock to operators, please refer to Figure 1 and 4 In one embodiment of the present invention, a protective cover 5 is provided on the outside of the housing 3 , which is cylindrical and covers the end of the high-voltage metal spring needle. The protective cover 5 has an opening 51 for facing the end of the high-voltage metal probe 4 .

[0039] To facilitate the conduction of the motor 200, please refer to Figure 2 and 4 In one embodiment of the present invention, a terminal block base 6 is provided on the base plate 1 , and the power line and the Hall line of the motor 200 are electrically connected to the terminal block base 6 .

[0040] Further, see Figure 4The housing 3 is also provided with a through hole 31. The ground wire of the high-voltage machine passes through the through hole 31 and is electrically connected to the terminal base 6, so that the motor 200 and the high-voltage machine are electrically connected. The terminal base 6 acts as a transition connection and avoids the risk of electric shock.

[0041] To enable the housing 3 to be opened and closed, please refer to Figure 2 and 4 In one embodiment of the present invention, the housing 3 and the bottom plate 1 are hingedly connected by a hinge 7. It should be noted that the through hole 31 on the housing 3 is located on one side of the hinge 7 to prevent the bottom line from being pulled randomly.

[0042] To facilitate opening and closing of the housing 3, please refer to Figure 1 and 4 In one embodiment of the present invention, a handle 8 is provided on the housing 3. It should be understood that the handle 8 is provided on the other side of the hinge 7; and the handle 8 is also made of insulating material.

[0043] To facilitate the alignment of the high voltage metal probe 4 with the screws of the motor 200, refer to Figure 4 In one embodiment of the present invention, the motor base 2 has an inner contour adapted to the outer contour of the motor 200 , and the motor 200 is fixed to the motor base 2 corresponding to the inner contour so that the probe 4 is just aligned with the screw of the motor 200 .

[0044] To prevent the housing 3 from being damaged by collision, please refer to Figure 1 、 2 In one embodiment of the present invention, the contact surface of the bottom plate 1 corresponding to the shell 3 is provided with an anti-collision pad 9. In addition, the outer surface of the shell 3 is provided with an anti-collision pad 9.

[0045] The steps for performing a withstand voltage test using the protective device 100 are as follows:

[0046] 1. Turn on the high-pressure machine;

[0047] 2. Place the motor to be tested into motor seat 2;

[0048] 3. Connect the motor power line and Hall line to the high voltage machine ground line;

[0049] 4. The operator covers the housing 3 (at this point the high-voltage metal probe 4 has already pressed against the motor screw to be tested);

[0050] 5. Start the high-voltage machine and perform a withstand voltage test. After the test is completed, the power will be automatically cut off and the results will be given.

[0051] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The above embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the concept of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be based on the appended claims.

Claims

1. A pressure test machine protection device, characterized in that: include: A bottom plate (1), wherein a motor seat (2) is provided on the bottom plate (1) for placing a motor (200); A housing (3), the housing (3) being rotatably connected to the base plate (1), the housing (3) being provided with a high-voltage metal probe (4), and when the housing (3) covers the motor seat (2), the high-voltage metal probe (4) is electrically connected to the motor (200); A protective cover (5) is provided on the outer periphery of the high-voltage metal probe (4), and the base plate (1), the motor base (2), the housing (3) and the protective cover (5) are all insulators.

2. The pressure test machine protection device according to claim 1, characterized in that: The high-voltage metal probe (4) has two ends respectively arranged inside and outside the housing (3).

3. The pressure test machine protection device according to claim 2, characterized in that: The protective cover (5) is arranged outside the housing (3) and has an opening (51) for facing the end of the high-voltage metal probe (4).

4. The pressure test machine protection device according to claim 1, characterized in that: A terminal base (6) is provided on the bottom plate (1) for electrically connecting the power supply and the Hall line of the motor (200).

5. The pressure test machine protection device according to claim 4, characterized in that: The housing (3) is further provided with a through hole (31), through which the ground wire of the high voltage machine passes and is electrically connected to the terminal base (6).

6. The pressure test machine protection device according to claim 1, characterized in that: The shell (3) and the bottom plate (1) are hingedly connected via a hinge (7).

7. The pressure test machine protection device according to claim 1, characterized in that: A handle (8) is provided on the housing (3).

8. The pressure test machine protection device according to claim 1, characterized in that: The motor seat (2) has an inner profile adapted to the outer profile of the motor (200) so as to fix the motor (200).

9. The pressure test machine protection device according to claim 1, characterized in that: A contact surface of the bottom plate (1) corresponding to the outer shell (3) is provided with an anti-collision pad (9).

10. The pressure test machine protection device according to claim 1, characterized in that: An anti-collision pad (9) is provided on the outer surface of the housing (3).

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