Thin film electricity resistance test tool

Abstract

The utility model discloses a thin film electricity resistance test tool which comprises a workbench and a voltage resistance tester, a bearing disc is welded in the middle of the bottom of the workbench, and a brake motor is installed at the top of the bearing disc. According to the utility model, by adopting the adjusting disc and the electric cylinder, after the test is completed, the electric film after the test is completed can be moved out through the reset of the electric cylinder, the retraction of the deformation of the spring and the rotation of the adjusting disc, so that the electric film is not in direct contact with a plurality of groups of outgoing lines, and the electric shock condition can be avoided; the whole operation safety is improved, multiple sets of mounting grooves are formed in the adjusting disc, multiple sets of capacitor films can be placed at a time, continuous detection operation can be achieved, shutdown replacement operation does not need to be carried out one by one, the whole operation detection efficiency can be effectively improved, and the practicability is high. The device has the advantages of being high in operation safety, high in operation replacement efficiency and good in anti-touch effect.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitor testing, and specifically, to a film electric endurance testing tooling. Background Art

[0002] With the increasingly wide application of capacitor films in the power electronics industry, as one of the core components, when developing new products, for capacitor films of different brands with new specifications, it is necessary to test and compare the ripple current resistance performance of the capacitor films to obtain their application performance in the products.

[0003] In the existing publicly disclosed technology, the application number is: CN202023254909.X, a voltage withstand testing fixture for capacitor films, including: an insulating base, a conductive plate, and an insulating layer; the conductive plate is a laminated plate with conductive properties, used to connect the negative lead-out wire of the voltage withstand tester; the conductive plate is arranged on the insulating base, and the insulating layer is arranged on the upper surface of the conductive plate; the insulating layer at least includes a supporting part, and its structure is suitable for supporting the edge of the plated area of the capacitor film, and at the same time, the side of the remaining edge area of the capacitor film is directly placed on the upper surface of the conductive plate. The utility model cooperates with the existing voltage withstand tester to complete the film voltage withstand test. Different from the past that it was necessary to make the film into a semi-finished capacitor core before testing, the utility model can directly apply a test voltage to the strip-shaped film, complete the test and record data. The test cost is low, the design verification cost is reduced, and it can also manage the supply chain more directly and quickly, and select better-quality supplier materials at a lower cost.

[0004] However, the above patent still has certain disadvantages when in use: it needs to complete the testing of a group of capacitor films before the subsequent loading and unloading operations of the capacitor films can be carried out, which takes a relatively long time to operate, thereby reducing the overall work efficiency. Moreover, when loading and unloading the capacitor films, since the personnel operate directly next to the positive and negative lead-out wires, this increases the risk of personnel accidentally touching the circuit, resulting in the problem that personnel are prone to electric shock, and the overall operation safety is not very ideal.

[0005] In response to the problems in the related art, no effective solution has been proposed yet. Summary of the Utility Model

[0006] (1) Technical Problems to be Solved

[0007] In view of the deficiencies of the prior art, the utility model provides a film electric endurance testing tooling, which has the advantages of high operation safety, high operation replacement efficiency, and good anti-touch effect, thereby solving the problems in the above background art.

[0008] (2) Technical Solutions

[0009] To achieve the advantages of high operation safety, high operation replacement efficiency, and good anti-touch effect, the specific technical solution adopted by the present utility model is as follows:

[0010] A film electric strength test tooling, comprising a workbench and a withstand voltage tester. A bearing plate is welded at the middle position of the bottom of the workbench. A braking motor is installed at the top position of the bearing plate. An adjusting disk is connected to the top position of the braking motor. A number of groups of installation grooves are evenly and circularly arranged at the top position of the adjusting disk. Two sides of the inner position of each installation groove are symmetrically and slidably connected with limit blocks. Springs are installed at the bottom positions of the limit blocks inside the installation grooves. A moving plate is fixedly installed between the limit blocks. A conductive plate is installed at the top position of the moving plate. An insulating layer is provided at the top position of the conductive plate. A capacitor film is abutted against the top position of the insulating layer. A detection groove is opened at the surface position of the workbench directly above the installation groove. An installation frame is welded at the bottom end position of the top surface of the workbench directly below the installation groove. An electric cylinder is installed at the top position of the installation frame. A contact plate is installed at the top position of the electric cylinder. The contact plate, the installation groove, and the detection groove are in the same straight line.

[0011] Furthermore, a bearing frame is welded at one side position of the top of the workbench. A withstand voltage tester is installed at the top position of the bearing frame. A positive electrode lead wire and a negative electrode lead wire are respectively and electrically connected to the surface position of the withstand voltage tester. A test metal weight is connected to the bottom end position of the positive electrode lead wire.

[0012] Furthermore, an observation cover is installed at the side position of the bearing frame on one side of the top of the workbench.

[0013] Furthermore, through holes for the positive electrode lead wire and the negative electrode lead wire to pass through are opened at the surface position of the observation cover.

[0014] Furthermore, the moving plate is an insulating rubber pad.

[0015] Furthermore, the surface of the insulating layer is in a concave-shaped structure, and its two protruding ends are used to support both ends of the capacitor film.

[0016] Furthermore, the capacitor film is provided with a light film layer and a plating layer.

[0017] Furthermore, the test metal weight is a copper weight, the conductive plate is a copper plate, and the insulating layer is an epoxy board.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the present utility model provides a film electric strength test tooling, which has the following beneficial effects:

[0020] (1) The utility model adopts an adjusting disk and an electric cylinder. After the test is completed, the tested electric film can be moved out through the reset of the electric cylinder, the recovery of the spring deformation, and the rotation of the adjusting disk, so that there is no direct contact between the tested electric film and multiple groups of lead-out wires, which can avoid the occurrence of electric shock, improve the overall operation safety, and there are multiple installation grooves on the adjusting disk, which can place multiple groups of capacitor films at one time, enabling continuous detection operations, without the need to stop and replace each group one by one, and can effectively improve the overall operation detection efficiency, having the advantages of high operation safety, high operation replacement efficiency, and good anti-touch effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 is a schematic structural diagram of a film withstand voltage test tooling proposed by the present utility model;

[0023] Figure 2 is a top view of the adjusting disk of the present utility model;

[0024] Figure 3 is an internal cross-sectional view of the installation groove of the present utility model;

[0025] Figure 4 is a schematic structural diagram of the carrier plate of the present utility model.

[0026] In the figure:

[0027] 1, workbench; 2, carrier plate; 3, braking motor; 4, adjusting disk; 5, electric cylinder; 6, mounting frame; 7, contact plate; 8, observation cover; 9, positive lead-out wire; 10, negative lead-out wire; 11, detection groove; 12, withstand voltage tester; 13, test metal weight; 14, carrier frame; 15, installation groove; 16, moving plate; 17, limiting block; 18, spring; 19, conductive plate; 20, insulating layer; 21, light film layer; 22, plating layer; 23, capacitor film. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] To further illustrate each embodiment, the present utility model provides accompanying drawings, which are a part of the disclosure of the present utility model. They are mainly used to illustrate the embodiments and can cooperate with the relevant descriptions in the specification to explain the operating principle of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present utility model. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0029] According to an embodiment of the present utility model, a film withstand voltage test tooling is provided.

[0030] Now, the present utility model will be further described in conjunction with the accompanying drawings and specific implementation manners. As Figures 1-4 shown, a film withstand voltage test tooling according to an embodiment of the present utility model includes a workbench 1 and a withstand voltage tester 12. A bearing plate 2 is welded at the middle position of the bottom of the workbench 1. A braking motor 3 is installed at the top position of the bearing plate 2. An adjusting plate 4 is connected to the top position of the braking motor 3. A plurality of groups of mounting grooves 15 are evenly formed around the top position of the adjusting plate 4. Two sides of the inside of the mounting groove 15 are symmetrically and slidably connected with limiting blocks 17. Springs 18 are installed at the bottom positions of the limiting blocks 17 inside the mounting grooves 15. A moving plate 16 is fixedly installed between the limiting blocks 17. A conductive plate 19 is installed at the top position of the moving plate 16. An insulating layer 20 is provided at the top position of the conductive plate 19. A capacitive film 23 abuts against the top position of the insulating layer 20. A detection groove 11 is formed at the surface position of the workbench 1 directly above the mounting groove 15. A mounting frame 6 is welded at the bottom end position of the top surface of the workbench 1 directly below the mounting groove 15. An electric cylinder 5 is installed at the top position of the mounting frame 6. A contact plate 7 is installed at the top position of the electric cylinder 5. The contact plate 7, the mounting groove 15, and the detection groove 11 are in the same straight line. During the detection process, the electric cylinder 5 can drive the moving plate 16 to move the electric film into the detection groove 11 and connect it to a plurality of lead wires. At this time, the negative lead wire 10 of the withstand voltage tester 12 is connected to the conductive plate 19, and the positive lead wire 9 is connected to the metal coating 22 of the capacitive film 23.

[0031] In one embodiment, a carrier 14 is welded to one side of the top of the workbench 1. A withstand voltage tester 12 is installed at the top of the carrier 14. At the surface position of the withstand voltage tester 12, a positive lead wire 9 and a negative lead wire 10 are electrically connected respectively. At the bottom end position of the positive lead wire 9, a test metal weight 13 is connected. The withstand voltage tester 12 is an existing device and can be directly purchased from the market. The withstand voltage tester 12 has functions such as a switch function, an AC / DC switching function, a current adjustment function, a voltage adjustment function, an alarm function, a display screen for current and voltage values at present, etc. The test metal weight 13 is connected to the positive lead wire 9 of the withstand voltage tester 12, and the test metal weight 13 presses tightly on the metal coating 22 of the capacitor film 23, playing a role in conducting electricity and pressing the film so that it will not warp.

[0032] In one embodiment, an observation cover 8 is installed at the side position of the carrier 14 on one side of the top of the workbench 1. The setting of the observation cover 8 facilitates personnel to observe the contact situation between multiple lead wires and the capacitor film 23, and thus facilitates timely adjustment. Moreover, the observation cover 8 is made of insulating material, which can avoid electric arcs and current from causing harm to personnel, playing a certain role in protecting the operation.

[0033] In one embodiment, perforations for the positive lead wire 9 and the negative lead wire 10 to pass through are provided at the surface position of the observation cover 8. The setting of the perforations facilitates the installation and use of multiple lead wires.

[0034] In one embodiment, the moving plate 16 is an insulating rubber pad.

[0035] In one embodiment, the surface of the insulating layer 20 is in a concave shape structure. Its two protruding ends are used to support the two ends of the capacitor film 23, and the connecting part between the two protruding ends is used to support the edge of the area with the coating 22 of the capacitor film 23 for insulation treatment. The empty part between the two protruding ends is used to directly place the non-edge area of the area with the coating 22 on the upper surface of the conductive plate 19. After placing the two ends of the capacitor film 23 on the two protruding ends of the insulating layer 20, insulating tape is used to fix the two ends of the film.

[0036] In one embodiment, the capacitor film 23 is provided with a light film layer 21 and a coating 22. The specific structure of the capacitor film 23 includes a light film, and a metal coating 22 evaporated on the surface of the light film. Among them, the metal coating 22 only covers a part of the surface of the light film. The area where the metal coating 22 is evaporated is the coating 22 area, and the area without the evaporated metal coating 22 is called the reserved edge area.

[0037] In one embodiment, the test metal weight 13 is a copper weight, the conductive plate 19 is a copper plate, and the insulating layer 20 is an epoxy board.

[0038] Working principle: In actual use, the long strip capacitor film 23 is laid flat, wherein the edge of the metal-plated area on the capacitor film 23 is placed on the insulating layer 20, and the rest of the metal-plated area is placed on the conductive plate 19, and the edge area of the metal-free coating 22 is placed on the conductive plate 19, the negative lead wire 10 of the withstand voltage tester 12 is connected to the conductive plate 19, and the positive lead wire 9 is connected to the metal coating 22 of the capacitor film 23. Then, after the withstand voltage tester 12 is turned on, the test voltage passes through the conductive plate 19, the optical film layer 21 of the capacitor film 23, and the metal coating 22 in turn to form a loop; by adjusting the output voltage of the withstand voltage tester 12 until the capacitor film 2 is broken down. 3. Read the corresponding value, which is the withstand voltage value of the film test. The reason why the insulating layer 20 is set and the edge of the area with the coating 22 of the capacitor film 23 is placed on the insulating layer 20 is that the edge of the area with the coating 22 will discharge and arc when the power is on, resulting in inaccurate testing. Therefore, the edge area needs to be insulated, and the non-edge part of the area with the coating 22 is directly placed on the conductive plate 19 to ensure that the test voltage can form a loop between the conductive plate 19 and the capacitor film 23, thereby realizing the withstand voltage test. Before the test, the personnel can place the multiple groups of capacitor films 23 to be tested in turn into the mounting slot 15 on the top of the adjusting disk 4 and connect them with the movable plate 1 6, and then the operation of the brake motor 3 can drive the adjustment disk 4 to rotate. At this time, the positions of the multiple groups of mounting grooves 15 on the surface thereof will be adjusted accordingly, so that the mounting groove 15 loaded with the capacitor film 23 can be moved to the position just above the contact plate 7 and just below the detection groove 11. At this time, the operation of the electric cylinder 5 can drive the contact plate 7 to move up and contact the movable plate 16 inside the mounting groove 15, and as the electric cylinder 5 is continuously lifted, the movable plate 16 can be lifted to the top position of the detection groove 11. At this time, the capacitor film 23 on the surface of the movable plate 16 can be connected to the multiple groups of lead wires of the withstand voltage tester 12. , and then realize the above-mentioned test operation, and after the test is completed, the electric film that has been tested can be removed by resetting the electric cylinder 5, retracting the deformation of the spring 18 and rotating the adjusting disk 4, so that there will be no direct contact between it and the multiple groups of lead wires, which can avoid the occurrence of electric shock and improve the overall operation safety. In addition, multiple groups of mounting grooves 15 are provided on the adjusting disk 4, which can place multiple groups of capacitor films 23 at one time, and can realize continuous detection operation. There is no need to stop and replace each group one by one, which can effectively improve the overall operation detection efficiency. The device as a whole has the advantages of high operation safety, high operation replacement efficiency and good anti-touch effect.

[0039] In the present utility model, unless otherwise clearly specified or defined, the terms "installation", "setting", "connection", "fixation", "swivel connection", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A thin-film dielectric withstand test tooling, comprising a workbench (1) and a withstand voltage tester (12), characterized in that, At the middle position of the bottom of the workbench (1), a bearing plate (2) is welded. At the top position of the bearing plate (2), a braking motor (3) is installed. At the top position of the braking motor (3), an adjusting plate (4) is connected. At the top position of the adjusting plate (4), a number of groups of mounting grooves (15) are evenly arranged in a circular manner. At both sides inside the mounting groove (15), limiting blocks (17) are symmetrically and slidably connected. At the bottom of the limiting block (17) located inside the mounting groove (15), a spring (18) is installed. Between the limiting blocks (17), a moving plate (16) is fixedly installed. At the top position of the moving plate (16), a conductive plate (19) is installed. At the top position of the conductive plate (19), an insulating layer (20) is provided. At the top position of the insulating layer (20), a capacitor film (23) is abutted. Right above the mounting groove (15), a detection groove (11) is opened on the surface of the workbench (1). Right below the mounting groove (15), at the bottom end of the top surface of the workbench (1), a mounting frame (6) is welded. At the top position of the mounting frame (6), an electric cylinder (5) is installed. At the top position of the electric cylinder (5), a contact plate (7) is installed. The contact plate (7), the mounting groove (15), and the detection groove (11) are in the same straight line.

2. The film electric resistance test tooling according to claim 1, characterized in that, At one side of the top of the workbench (1), a bearing frame (14) is welded. At the top position of the bearing frame (14), a withstand voltage tester (12) is installed. On the surface of the withstand voltage tester (12), a positive electrode lead wire (9) and a negative electrode lead wire (10) are electrically connected respectively. At the bottom end of the positive electrode lead wire (9), a test metal weight (13) is connected.

3. The film electric resistance test tooling according to claim 1, characterized in that, At one side of the top of the workbench (1), an observation cover (8) is installed at the side of the bearing frame (14).

4. The film electric tolerance test tooling according to claim 3, characterized in that, On the surface of the observation cover (8), a perforation for the positive electrode lead wire (9) and the negative electrode lead wire (10) to pass through is opened.

5. The film withstand voltage test tooling according to claim 1, characterized in that, The moving plate (16) is an insulating rubber pad.

6. The film electric resistance testing tooling according to claim 1, characterized in that, The surface of the insulating layer (20) is in a concave shape structure, and its two protruding ends are used to support both ends of the capacitor film (23).

7. A film electric resistance test tooling according to claim 1, characterized in that, The capacitor film (23) is provided with a light film layer (21) and a plating layer (22).

8. A film electric resistance test tooling according to claim 2, characterized in that, The test metal weight (13) is a copper weight, the conductive plate (19) is a copper plate, and the insulating layer (20) is an epoxy board.

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