Full-automatic capacitor high-voltage testing machine

Abstract

The utility model discloses a full-automatic capacitor high-voltage testing machine, and the machine comprises a manipulator which is disposed on a workbench; the feeding station comprises a vibration disc; the test station comprises a test box capable of moving horizontally, the upper end face of the test box is provided with a pressurizable containing cavity, a plurality of clamp sets used for clamping capacitors are arranged in the containing cavity, a test cover body capable of moving up and down is arranged above the test box, and a plurality of probes are arranged on the side wall of the test box. Each probe penetrates through the side wall of the test box; the discharging station comprises a first storage box used for containing qualified products and a second storage box used for containing unqualified products. According to the utility model, automatic feeding, testing and discharging can be realized, and the testing efficiency is high; according to the high-voltage testing device, the breakdown voltage of air can be increased by increasing the pressure in the testing cavity, so that high-voltage detection can be carried out on a product without silicone oil, cleaning is not needed after a test is finished, and the testing cost is not increased.

Description

Technical Field

[0001] The utility model relates to a capacitor testing machine, in particular to a full-automatic capacitor high-voltage testing machine. Background Art

[0002] At present, there is a problem with traditional capacitor high-voltage testing, that is, when the voltage is higher than the breakdown distance of air, sparks will be generated, so all products need to be tested with universal silicone oil for high voltage testing. If silicone oil is used, it can only be put in manually and then taken out manually, which has a very low test efficiency. Moreover, after the silicone oil test is completed, the product must be repeatedly cleaned to clean the silicone oil on the surface of the product, which increases the cleaning process and the test cost.

[0003] Therefore, a fully automatic capacitor high voltage tester is designed to solve the above problems.

[0004] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solutions of the utility model and for the convenience of understanding by those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because these solutions are described in the background technology section of the utility model. Utility Model Content

[0005] In order to overcome the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide a fully automatic capacitor high voltage tester.

[0006] In order to achieve the above purpose and other related purposes, the technical solution provided by the utility model is: a fully automatic capacitor high-voltage tester, including: a manipulator, the manipulator is arranged on a workbench; a loading station, the loading station includes a vibration plate; a testing station, the testing station includes a horizontally movable test box, the upper end surface of the test box is provided with a pressurizable accommodating chamber, the interior of the accommodating chamber is provided with a plurality of clamp groups for clamping the capacitor, a test cover body that can move up and down is arranged above the test box, and a plurality of probes are arranged on the side wall of the test box, and each of the probes is arranged through the side wall of the test box; a unloading station, the unloading station includes a first storage box for placing qualified products and a second storage box for placing unqualified products; the loading station, the testing station and the unloading station are all arranged on the workbench and are located below the travel range of the manipulator. In this solution, automated loading, testing, and unloading can be achieved with high testing efficiency. The breakdown voltage of the air can be increased by pressurizing the test chamber, thereby enabling high-voltage testing of the product without silicone oil, eliminating the need for cleaning after the test, and not increasing testing costs.

[0007] Furthermore, the clamp group includes a left clamp block and a right clamp block that are relatively arranged, and the left clamp block and the right clamp block are both movably arranged on a guide rail, and the guide rail is fixed to the bottom of the accommodating cavity. In this solution, the left clamp block and the right clamp block can realize rapid clamping and separation of the product by moving on the guide rail, and the action efficiency is high.

[0008] Further, each group of the fixture groups is evenly distributed and arranged side by side. In this solution, the fixture groups are arranged in rows and evenly distributed, which is convenient for arrangement in the accommodating cavity, and also convenient for electrical connection and testing.

[0009] Furthermore, each of the two sides of the clamp group is provided with a probe. In this solution, probes are provided on both sides of the clamp group for easy connection and testing.

[0010] Furthermore, an isolation block is provided on both sides of each of the fixture groups, the isolation block is embedded in the side wall of the test box, and each of the probes is horizontally penetrated in the corresponding isolation block. In this solution, the isolation block is provided in the side wall of the test box, and the probe is penetrated in the isolation block. The isolation block can play an insulating role between the test box and the probe, and the isolation block can also play a sealing role.

[0011] Furthermore, the isolation block is cylindrical, and the center line of the probe is arranged to coincide with the center line of the isolation block. In this solution, the cylindrical isolation block is equivalent to a plunger, which plays the role of insulation and sealing. The probe is arranged at the center of the isolation block, and the structure is more stable.

[0012] Furthermore, a sealing ring is provided on the upper end surface of the test box, and the sealing ring is arranged around the upper edge of the accommodating cavity. In this solution, a sealing ring is provided on the upper end surface of the test box, so that the seal is more in place when the test cover is pressed down, and the efficiency of pressurizing the accommodating cavity is higher, the effect is better, and the test efficiency is improved.

[0013] Furthermore, the material of the probe is copper. In this solution, the probe is made of copper to achieve electrical connection inside and outside the test box, which has a better conductive effect.

[0014] Furthermore, the material of the isolation block is ceramic. In this solution, ceramic is used as the material of the isolation block, which has high insulation performance.

[0015] Due to the application of the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0016] The fully automatic capacitor high-voltage tester designed by the utility model can realize automatic loading, testing and unloading, and has high testing efficiency; the breakdown voltage of the air can be increased by pressurizing the test chamber, thereby realizing high-voltage testing of the product without silicone oil, and there is no need to clean it after the test, which will not increase the testing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the high voltage testing machine of the utility model;

[0018] Figure 2 The structure of the high voltage testing machine of the utility model is shown in FIG. Figure 1 ;

[0019] Figure 3 The structure of the high voltage testing machine of the utility model is shown in FIG. Figure 2 ;

[0020] Figure 4 This is a schematic diagram of the test box structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the fixture assembly and related structures on both sides of the utility model;

[0022] Figure 6 This is a schematic diagram of the Baschen curve;

[0023] In the above drawings, 1, loading station; 101, vibration plate; 2, testing station; 201, test box; 202, accommodating chamber; 203, fixture group; 20301, left clamping block; 20302, right clamping block; 20303, guide rail; 204, probe; 205, isolation block; 206, sealing ring; 3, unloading station; 301, first storage box; 302, second storage box. DETAILED DESCRIPTION

[0024] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0025] It should be noted that in the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and 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 according to specific circumstances.

[0027] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0028] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0029] Embodiment 1: See attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 and attached Figure 4As shown, the present embodiment provides a fully automatic capacitor high-voltage tester, comprising: a manipulator, which is arranged on a workbench; a loading station 1, which comprises a vibration plate 101; a testing station 2, which comprises a horizontally movable test box 201, the upper end surface of the test box 201 is provided with a pressurizable accommodating chamber 202, the interior of the accommodating chamber 202 is provided with a plurality of clamp groups 203 for clamping the capacitor, a test cover body which can be moved up and down is arranged above the test box 201, and a plurality of probes 204 are arranged on the side wall of the test box 201, and each probe 204 is arranged through the side wall of the test box 201; a unloading station 3, which comprises a first storage box 301 for placing qualified products and a second storage box 302 for placing unqualified products; the loading station 1, the testing station 2, and the unloading station 3 are all arranged on the workbench and are located below the travel range of the manipulator.

[0030] Principle: The robot takes the products from the outlet of the vibration plate 101 of the loading station 1 in sequence, and then puts them into the test box 201 in sequence. After the test box 201 is fully loaded, it moves to the bottom of the test cover, and the test cover is pressed down to seal the accommodating cavity 202, and then the accommodating cavity 202 is pressurized. After pressurization, high-voltage testing is achieved through the internal and external electrical connection of the probe 204; after the test is completed, the test cover is opened, and the test box 201 is removed. According to the test results, the qualified products are placed in the first storage box 301 and the unqualified products are placed in the second storage box 302 by the robot.

[0031] During the implementation process, the air in the containing chamber 202 is pressurized at the test station 2. When the pressure reaches 0.6 MPa, the breakdown voltage of the air will increase. According to Paschen's law, the breakdown voltage can be increased to 2000 V, and high-voltage testing can be achieved in compressed air without silicone oil.

[0032] Paschen's law: the law of the relationship between the reaction gap voltage and the product of gas pressure and gap, the breakdown voltage of the gas U b It is generally a function of the product of air pressure and gap distance (Pd) (see Appendix Figure 6 When the distance between the electrodes is changed, the gas pressure is also changed accordingly, so that the product of the two remains unchanged, and the breakdown voltage remains unchanged.

[0033] In this embodiment, automated loading, testing and unloading can be achieved with high testing efficiency; the breakdown voltage of the air can be increased by pressurizing the test chamber, thereby achieving high-voltage testing of the product without silicone oil, eliminating the need for cleaning after the test, and not increasing the testing cost.

[0034] Embodiment 2: See attached Figure 4 and attached Figure 5As shown, this embodiment is a further improvement based on the first embodiment, and its specific method is as follows: the clamp group 203 includes a left clamp block 20301 and a right clamp block 20302 that are relatively arranged, and the left clamp block 20301 and the right clamp block 20302 are both movably arranged on a guide rail 20303, and the guide rail 20303 is fixed at the bottom of the accommodating cavity 202.

[0035] Among them, the left clamping block 20301 and the right clamping block 20302 are both connected to the driving device to realize the function of automatic clamping or separation.

[0036] In this embodiment, the left clamping block 20301 and the right clamping block 20302 can achieve rapid clamping and separation of the product by moving on the guide rail 20303, with high operation efficiency.

[0037] Embodiment 3: See attached Figure 4 As shown, this embodiment is a further improvement on the basis of the second embodiment, and its specific method is: each group of fixture groups 203 is evenly distributed and arranged side by side. In this embodiment, the fixture groups 203 are arranged in rows and evenly distributed, which is convenient for arrangement in the accommodating cavity 202, and also convenient for electrical connection and testing.

[0038] Embodiment 4: See attached Figure 4 and attached Figure 5 As shown, this embodiment is a further improvement on the basis of the third embodiment, and its specific method is: a probe 204 is provided on both sides of each fixture group 203. In this embodiment, the probes 204 are provided on both sides of the fixture group 203 for easy connection and testing.

[0039] Embodiment 5: See attached Figure 4 As shown, this embodiment is a further improvement on the basis of the fourth embodiment, and its specific method is as follows: an isolation block 205 is provided on both sides of each fixture group 203, and the isolation block 205 is embedded in the side wall of the test box 201, and each probe 204 is horizontally penetrated and arranged in the corresponding isolation block 205. In this embodiment, the isolation block 205 is provided in the side wall of the test box 201, and the probe 204 is then penetrated and arranged in the isolation block 205. The isolation block 205 can play an insulating role between the test box 201 and the probe 204, and the isolation block 205 can also play a sealing role.

[0040] Embodiment 6: See attached Figure 4 and attached Figure 5As shown, this embodiment is a further improvement on the basis of the fifth embodiment, and its specific method is as follows: the isolation block 205 is cylindrical, and the center line of the probe 204 is arranged to coincide with the center line of the isolation block 205. In this embodiment, the cylindrical isolation block 205 is equivalent to a plunger, which plays the role of insulation and sealing, and the probe 204 is arranged at the center of the isolation block 205, so that the structure is more stable.

[0041] Embodiment 7: See attached Figure 4 As shown, this embodiment is a further improvement on the basis of the sixth embodiment, and its specific method is: the upper end surface of the test box 201 is provided with a sealing ring 206, and the sealing ring 206 is arranged around the upper edge of the accommodating cavity 202. In this embodiment, the sealing ring 206 is provided on the upper end surface of the test box 201, so that the sealing is more in place when the test cover is pressed down, and the efficiency of pressurizing the accommodating cavity 202 is higher, the effect is better, and the test efficiency is improved.

[0042] Embodiment 8: Not shown in the drawings, this embodiment is a further improvement on the embodiment 7, and its specific method is: the material of the probe 204 is copper. In this embodiment, the probe 204 is made of copper to achieve electrical connection inside and outside the test box 201, and the conductive effect is better.

[0043] Embodiment 9: Although not shown in the drawings, this embodiment is a further improvement on the basis of Embodiment 8, and its specific method is as follows: the material of the isolation block 205 is ceramic. In this embodiment, ceramic is used as the material of the isolation block 205, which has a high insulation performance.

[0044] The fully automatic capacitor high-voltage tester designed by the utility model can realize automatic loading, testing and unloading, and has high testing efficiency; the breakdown voltage of the air can be increased by pressurizing the test chamber, thereby realizing high-voltage testing of the product without silicone oil, and there is no need to clean it after the test, which will not increase the testing cost.

[0045] The above implementation modes are only for illustrating the technical concept and features of the utility model, and their purpose is to allow people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A fully automatic capacitor high voltage tester, characterized in that: include: A manipulator, wherein the manipulator is arranged on a workbench; A loading station (1), the loading station (1) comprising a vibrating plate (101); A test station (2), the test station (2) comprising a horizontally movable test box (201), the upper end surface of the test box (201) being provided with a pressurizable accommodating chamber (202), a plurality of clamp groups (203) for clamping capacitors being arranged inside the accommodating chamber (202), a test cover body movable up and down being arranged above the test box (201), a plurality of probes (204) being arranged on the side wall of the test box (201), and each of the probes (204) being arranged to penetrate the side wall of the test box (201); A material unloading station (3), the material unloading station (3) comprising a first storage box (301) for placing qualified products and a second storage box (302) for placing unqualified products; The loading station (1), the testing station (2) and the unloading station (3) are all arranged on a workbench and are located below the travel range of the manipulator.

2. A fully automatic capacitor high voltage tester according to claim 1, characterized in that: The clamp group (203) comprises a left clamp block (20301) and a right clamp block (20302) which are arranged opposite to each other, and the left clamp block (20301) and the right clamp block (20302) are both movably arranged on a guide rail (20303), and the guide rail (20303) is fixed at the bottom of the accommodating cavity (202).

3. A fully automatic capacitor high voltage tester according to claim 2, characterized in that: Each group of the clamp sets (203) is evenly distributed and arranged side by side.

4. A fully automatic capacitor high voltage tester according to claim 3, characterized in that: A probe (204) is provided on both sides of each of the clamp sets (203).

5. A fully automatic capacitor high voltage tester according to claim 4, characterized in that: An isolation block (205) is provided on both sides of each of the fixture groups (203), and the isolation block (205) is embedded in the side wall of the test box (201), and each of the probes (204) is horizontally penetrated in each of the corresponding isolation blocks (205).

6. A fully automatic capacitor high voltage tester according to claim 5, characterized in that: The isolation block (205) is cylindrical, and the center line of the probe (204) is arranged to coincide with the center line of the isolation block (205).

7. A fully automatic capacitor high voltage tester according to claim 6, characterized in that: The upper end surface of the test box (201) is provided with a sealing ring (206), and the sealing ring (206) is arranged around the upper edge of the accommodating cavity (202).

8. A fully automatic capacitor high voltage tester according to claim 7, characterized in that: The material of the probe (204) is copper.

9. A fully automatic capacitor high voltage tester according to claim 8, characterized in that: The isolation block (205) is made of ceramic.

Images