CN215866801U

CN215866801U - Stator withstand voltage tester

Info

Publication number: CN215866801U
Application number: CN202121962246.9U
Authority: CN
Inventors: 李东旭
Original assignee: Suzhou Makewell Automation Equipment Co ltd
Current assignee: Suzhou Makewell Automation Equipment Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-02-18
Anticipated expiration: 2031-08-19

Abstract

The utility model discloses a stator withstand voltage tester, which comprises a support. The stator comprises a stator and is characterized in that two ends of the support are respectively provided with a first metal part and a second metal part which are matched with cavities at two ends of the stator, one side of the second metal part is provided with a first driving mechanism for driving the second metal part to move towards the direction of the stator, and one side of the support is provided with a second driving mechanism for applying a high-pressure testing mechanism to the stator and driving the testing mechanism to move towards the direction of the stator. The utility model has the advantages that: the test is more precise; the internal cavity of the stator can be tested; the safety of the test process is guaranteed.

Description

Stator withstand voltage tester

Technical Field

The utility model relates to the field of voltage withstanding tests, in particular to a stator voltage withstanding tester.

Background

The modern withstand voltage tester can be called an electrical insulation strength tester, a dielectric strength tester and the like according to the function of the withstand voltage tester. Widely applied to the world industry field, the working principle is as follows: a voltage higher than normal working is applied to an insulator of the tested device for a specified time, leakage current is observed, if the voltage applied to the insulator generates little leakage current, insulation is good, otherwise, insulation is poor. The existing tester is difficult to carry out precise voltage withstanding test on the stator with complicated inside, and the error of the test result is large.

Accordingly, there is a need for a stator withstand voltage tester that solves the above problems.

SUMMERY OF THE UTILITY MODEL

The stator withstand voltage tester provided by the utility model overcomes the defects of the prior art, is relatively accurate in test and can carry out withstand voltage test on the internal cavity of the stator.

The technical scheme adopted by the utility model is as follows:

a stator withstand voltage tester comprises a support. The stator comprises a stator and is characterized in that two ends of the support are respectively provided with a first metal part and a second metal part which are matched with cavities at two ends of the stator, one side of the second metal part is provided with a first driving mechanism for driving the second metal part to move towards the direction of the stator, and one side of the support is provided with a second driving mechanism for applying a high-pressure testing mechanism to the stator and driving the testing mechanism to move towards the direction of the stator.

Further, the method comprises the following steps: the support is characterized in that one end of the support is provided with a fixing device for mounting a first metal piece, the other end of the support is provided with a sliding device for mounting a second metal piece, and the support is provided with a guide rail for the sliding device to slide.

Further, the method comprises the following steps: the sliding device comprises a mounting plate connected with a driving mechanism, wherein one side of the mounting plate, which is close to a metal piece, is provided with a mounting plate No. two, four corners of the mounting plate are provided with a cylindrical shaft, four corners of the mounting plate are provided with linear bearings, the cylindrical shaft penetrates through the linear bearings and the mounting plate in a sliding connection mode, the sliding device further comprises a transverse plate, the transverse plate is located on one side of the mounting plate, which is close to the driving mechanism, the cylindrical shaft penetrates through the mounting plate and is connected with the transverse plate, a spring is sleeved on the cylindrical shaft, one end of the spring is abutted against the mounting plate No. two, the other end of the spring extends into the linear bearings and is abutted against the mounting plate, and the linear bearings are provided with spring gaskets with one end in contact with the spring.

Further, the method comprises the following steps: the mounting plate is characterized in that a connecting plate used for connecting the sliding device and the guide rail is arranged on the guide rail, and a groove is formed in the connecting plate, so that the mounting plate I can be connected with the connecting plate through the groove.

Further, the method comprises the following steps: be provided with the mounting disc that is used for placing a metalwork on No. two mounting panels, the mounting disc is insulating material.

Further, the method comprises the following steps: fixing device is including fixing the fixed plate on the support and being used for placing No. two mounting discs of a metalwork, be provided with the adjustable plate of being connected with No. two mounting discs on the fixed plate, adjustable plate four corners is provided with waist type groove, No. two mounting discs four corners are provided with waist type groove, the waist type groove of adjustable plate and the waist type groove direction mutually perpendicular of No. two mounting discs.

Further, the method comprises the following steps: the second mounting disc is made of insulating materials.

Further, the method comprises the following steps: the testing mechanism comprises three groups of metal probes which are respectively contacted with the first metal piece, the second metal piece and the stator, and each group of metal probes is provided with a positive electrode and a negative electrode.

Further, the method comprises the following steps: and one side of the support is provided with a position sensor for detecting whether the product is placed in place.

The utility model has the beneficial effects that:

1. the stator voltage withstanding tester is convenient to assemble and disassemble, simple and safe to operate, can efficiently detect and avoid errors to the maximum extent.

2. The guide rail is adopted for sliding, so that the reliability of the test is improved, and the time is saved;

3. and the metal part is installed by adopting an insulating material, so that the safety in the test process is ensured.

Drawings

Fig. 1 is a schematic structural diagram of a stator withstand voltage tester according to an embodiment of the present application;

FIG. 2 is a schematic structural view of a fastening device according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a testing mechanism according to an embodiment of the present application;

FIG. 4 is a schematic structural view of a sliding device according to an embodiment of the present application;

labeled as: 1. a first metal piece; 2. a second metal part; 3. a support; 4. a testing mechanism; 5. a fixing device; 6. a sliding device; 7. a position sensor; 8. a first driving mechanism; 9. a second driving mechanism; 10. a guide rail; 401. a metal probe; 501. a second mounting plate; 502. an adjustable plate; 503. positioning the bolt; 504. positioning blocks; 505. a fixing plate; 601. a first mounting plate; 602. a second mounting plate; 603. a first mounting plate; 604. a cylindrical shaft; 605. a linear bearing; 606. a spring; 607. a spring washer; 608. a transverse plate; 609. a connecting plate.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, an embodiment of the present application provides a stator withstand voltage tester, which includes a support 3. Support 3 both ends are provided with respectively and carry out a complex metalwork 1 and No. two metalwork 2 with stator both ends die cavity, No. two metalwork 2 one side is provided with the actuating mechanism 8 that is used for driving No. two metalwork 2 to the motion of stator direction, support 3 one side is provided with and is used for exerting highly compressed accredited testing organization 4 and is used for driving accredited testing organization 4 to the motion of stator direction No. two actuating mechanism 9 of stator direction to the stator.

It should be noted that the middle of the outer surface of the stator is made of metal, and the rest part of the outer part and the cavity are injection molding areas. The testing mechanism 4 may release high pressure.

During operation, the stator is installed on the first metal part 1, the first driving mechanism 8 drives the second metal part 2 to move towards the stator, so that cavities on two sides of the stator are respectively filled with the first metal part 1 and the second metal part 2, then the second driving mechanism 9 drives the testing mechanism 4 to move towards the stator, and the testing mechanism 4 releases high pressure after contacting with the first metal part 1, the outer surface metal of the stator and the second metal part 2.

According to the design, the stator is filled through the first metal piece 1 and the second metal piece 2, so that a cavity of the stator is completely filled with metal, and the withstand voltage test performance of the stator can be judged by testing whether current leaks or breaks down an injection molding area of the stator.

Specifically, the method comprises the following steps: as shown in fig. 1, one end of the support 3 is provided with a fixing device 5 for mounting a first metal piece 1, the other end of the support 3 is provided with a sliding device 6 for mounting a second metal piece 2, and the support 3 is provided with a guide rail 10 for the sliding device 6 to slide.

During operation, a first metal piece 1 is installed on the fixing device 5, then the stator and the first metal piece 1 are combined, the first metal piece 1 is enabled to fill the cavity and the end face of one end of the stator, the sliding device 6 is pushed to the other end of the stator along the guide rail 10, and the second metal piece 2 is enabled to fill the cavity and the end face of the other end of the stator.

In the design, the sliding device 6 is pushed to the fixing device 5 along the guide rail 10, and the guide rail 10 can enhance the reliability of the sliding device 6 in the moving process, so that the time for filling the second metal piece 2 and the stator is saved.

Specifically, the method comprises the following steps: as shown in fig. 4, the sliding device 6 includes a first mounting plate 603 connected to a first driving mechanism 8, a second mounting plate 602 is disposed on one side of the first mounting plate 603 close to a first metal part 1, cylindrical shafts 604 are disposed at four corners of the second mounting plate 602, linear bearings 605 are disposed at four corners of the first mounting plate 603, the cylindrical shafts 604 penetrate the linear bearings 605 and are slidably connected to the first mounting plate 603, the sliding device further includes a horizontal plate 608, the horizontal plate 608 is disposed on one side of the first mounting plate 603 close to the first driving mechanism 8, the cylindrical shafts 604 penetrate the first mounting plate 603 and are connected to the horizontal plate, springs 606 are sleeved on the cylindrical shafts 604, one ends of the springs 606 abut against the second mounting plate 602, the other ends of the springs extend into the linear bearings 605 and abut against the first mounting plate 603, and spring washers 607 are disposed on ends of the linear bearings 605 contacting the springs 606.

During operation, after the first driving mechanism 8 works, the first mounting plate 603 extrudes towards the stator, the first mounting plate 603 drives the linear bearing 605 to move towards the second mounting plate 602, the first mounting plate 603 extrudes the spring 606 to enable the spring 606 to reach the elastic limit, and then the first mounting plate 603 continues to push the second mounting plate 602, so that the sliding device 6 can drive the first metal piece 1 to move towards the stator.

In the above design, after the spring 606 can make a metal part 1 fill the injection molding area of the stator, the driving force of a driving mechanism 8 to the metal part 1 can be buffered by the spring 606, the stator is prevented from being excessively extruded by the metal part 1, and the spring gasket 607 can ensure the normal work of the spring 606.

Specifically, the method comprises the following steps: as shown in fig. 1, the guide rail 10 is provided with a connecting plate 609 for connecting the sliding device 6 and the guide rail 10, and the connecting plate 609 is provided with a groove so that the first mounting plate 603 can be connected with the connecting plate 609 through the groove.

In operation, the slide 6 slides on the rail 10 via the connecting plate 609.

In the above design, the connecting plate 609 is provided with a groove, the first mounting plate 603 of the sliding device 6 is connected with the connecting plate 609 through the groove, the connection mode is convenient to assemble and disassemble, and the groove is connected with the first mounting plate 603 through the groove body stably.

Specifically, the method comprises the following steps: as shown in fig. 1 and 4, a first mounting plate 601 for placing a second metal piece 2 is disposed on the second mounting plate 602, and the first mounting plate 601 is made of an insulating material.

The insulating material can be rubber, resin, mica plates and the like.

In the above design, No. 2 metalworks switch on and have high pressure during withstand voltage test, and insulating material can be effectual isolated No. 2 metalworks's high pressure flow direction to other positions of withstand voltage tester through mounting disc 601 in withstand voltage test process, ensures the security of test.

Specifically, the method comprises the following steps: as shown in fig. 2, the fixing device 5 includes a fixing plate 505 fixed on the support 3 and a second mounting plate 501 for placing the first metal part 1, an adjustable plate 502 connected with the second mounting plate 501 is provided on the fixing plate 505, waist-shaped grooves are provided at four corners of the adjustable plate 502, and waist-shaped grooves are provided at four corners of the second mounting plate 501. The waist-shaped groove of the adjustable plate 502 is perpendicular to the waist-shaped groove of the second mounting plate 501.

It should be noted that: the waist-shaped groove direction of the adjustable plate 502 in the application is vertical, and the direction of the second mounting plate 501 is horizontal. The fixed plate 505 is provided with a round hole matched with the waist-shaped groove of the adjustable plate 502, and the adjustable plate 502 and the fixed plate 505 are connected by penetrating the waist-shaped groove and the round hole through bolts. The adjustable plate 502 is provided with a round hole matched with the waist-shaped groove of the second mounting disc 501, and the adjustable plate 502 and the second mounting disc 501 penetrate through the waist-shaped groove through bolts and are connected with the round hole. Positioning blocks 504 are arranged on two sides of the adjustable plate 502, and positioning bolts 503 abutted to the second mounting plate 501 are arranged on the positioning blocks 504.

During the assembly, install a metalwork 1 on No. two mounting discs 501, when the deviation appears in the position of No. two metalworks 2, the bolt of not hard up connection No. two mounting discs 501 and adjustable plate 502 adjusts No. one metalwork 1 to suitable position, screws up the bolt of connecting No. two mounting discs 501 and adjustable plate 502 again. Or loosening the bolts connecting the fixed plate 505 and the adjustable plate 502, adjusting the first metal piece 1 to a proper position, and then screwing the bolts connecting the fixed plate 505 and the adjustable plate 502. Finally, the set bolt 503 is tightened.

In the design, the position of the first metal part 1 can be adjusted, and the stator can be aligned with the first metal part 1. The positioning block 504 and the positioning bolt 503 can further fix the second mounting plate 501.

Specifically, the method comprises the following steps: the second mounting plate 501 is made of an insulating material.

The insulating material can be rubber, resin, mica plates and the like.

In the above design, metal part 1 switches on high voltage during the withstand voltage test, and insulating material can be effectual isolated metal part 1's high voltage through No. two mounting discs 501 flow to other positions of withstand voltage tester in withstand voltage test process, ensures the security of test.

Specifically, the method comprises the following steps: as shown in fig. 1 and 3, the testing mechanism 4 includes three sets of metal probes 401 respectively contacting with the first metal part 1, the second metal part 2 and the stator, and each set of metal probes 401 has a positive electrode and a negative electrode.

In the embodiment of the application, the testing mechanism 4 is a GPT9803 voltage-resistant insulation tester.

During operation, the first metal piece 1 and the second metal piece 2 are respectively filled at two sides of the stator, and the three groups of metal probes 401 of the testing mechanism 4 simultaneously apply high pressure to the first metal piece 1, the metal on the outer surface of the stator and the second metal piece 2.

In the above-mentioned design, 4 metallic part 1 to a testing mechanism, after the metal of stator surface and No. two metallic parts 2 all exert the high pressure, surely can guarantee that the interior die cavity face and the outside district of moulding plastics of the stator that awaits measuring can both detect current, if the stator leaks electricity and can pass back leakage current through metal probe 401, judge whether the injection moulding performance of stator is good according to leakage current's size, it is good if leakage current is less than 1mA then to indicate the stator voltage resistance, it is bad to indicate the stator voltage resistance then to be higher than 1mA, 1mA is in comparatively accurate numerical value, therefore the accuracy of test can be ensured in this kind of design.

Specifically, the method comprises the following steps: as shown in fig. 1, a position sensor 7 for detecting whether a product is put in place is provided at one side of the stand 3.

The position sensor 7 may be a laser type sensor, a photoelectric type sensor, or the like.

In operation, the position sensor 7 converts the available output signal when the stator reaches a certain position.

In the design, the output signal of the position sensor 7 is compared with the output signal of the stator at the correct position, so that the position of the stator can be judged in time, and the accuracy of the withstand voltage test is ensured.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A stator withstand voltage tester comprises a support (3), and is characterized in that: support (3) both ends are provided with respectively and carry out a complex metalwork (1) and No. two metalwork (2) with stator both ends die cavity, No. two metalwork (2) one side is provided with and is used for driving No. one actuating mechanism (8) of No. two metalwork (2) to the motion of stator direction, support (3) one side is provided with and is used for applying highly compressed accredited testing organization (4) and is used for driving accredited testing organization (4) No. two actuating mechanism (9) to the motion of stator direction to the stator.

2. The stator withstand voltage tester according to claim 1, wherein: support (3) one end is provided with fixing device (5) that are used for installing first metalwork (1), support (3) other end is provided with slider (6) that are used for installing second metalwork (2), be provided with on support (3) and supply gliding guide rail (10) of slider (6).

3. The stator withstand voltage tester according to claim 2, wherein: the sliding device (6) comprises a first mounting plate (603) connected with a first driving mechanism (8), wherein a second mounting plate (602) is arranged on one side, close to a first metal piece (1), of the first mounting plate (603), cylindrical shafts (604) are arranged at four corners of the second mounting plate (602), linear bearings (605) are arranged at four corners of the first mounting plate (603), the cylindrical shafts (604) penetrate through the linear bearings (605) to be connected with the first mounting plate (603) in a sliding manner, the sliding device further comprises a transverse plate (608), the transverse plate (608) is positioned on one side, close to the first driving mechanism (8), of the first mounting plate (603), the cylindrical shafts (604) penetrate through the first mounting plate (603) to be connected with the transverse plate, springs (606) are sleeved on the cylindrical shafts (604), one ends of the springs (606) are abutted against the second mounting plate (602), the other ends of the springs extend into the linear bearings (605) to be abutted against the first mounting plate (603), and a spring gasket (607) is arranged at one end of the linear bearing (605), which is in contact with the spring (606).

4. The stator withstand voltage tester according to claim 2, wherein: the guide rail (10) is provided with a connecting plate (609) used for connecting the sliding device (6) and the guide rail (10), and the connecting plate (609) is provided with a groove, so that the first mounting plate (603) can be connected with the connecting plate (609) through the groove.

5. The stator withstand voltage tester according to claim 3, wherein: no. two mounting panels (602) are last to be provided with mounting disc (601) that are used for placing No. two metalworks (2), mounting disc (601) are insulating material.

6. The stator withstand voltage tester according to claim 2, wherein: fixing device (5) are including fixing fixed plate (505) on support (3) and No. two mounting discs (501) that are used for placing a metalwork (1), be provided with adjustable board (502) of being connected with No. two mounting discs (501) on fixed plate (505), adjustable board (502) four corners is provided with waist type groove, No. two mounting discs (501) four corners is provided with waist type groove, the waist type groove of adjustable board (502) and the waist type groove direction mutually perpendicular of No. two mounting discs (501).

7. The stator withstand voltage tester according to claim 6, wherein: the second mounting plate (501) is made of insulating materials.

8. The stator withstand voltage tester according to claim 1, wherein: the testing mechanism (4) comprises three groups of metal probes (401) which are respectively contacted with a first metal piece (1), a second metal piece (2) and a stator, and each group of metal probes (401) is provided with a positive pole and a negative pole.

9. The stator withstand voltage tester according to claim 1, wherein: and a position sensor (7) for detecting whether the product is placed in place is arranged on one side of the support (3).