Breakdown voltage testing device for stable thickness limit of viscous state colloid

Abstract

The utility model relates to a viscous-state colloid stable thickness limiting breakdown voltage testing device, which comprises a main frame, a copper hammer, a copper seat, a bearing plate, a lifting assembly and a driving assembly, and is characterized in that the copper seat is arranged on the main frame, is externally connected with a first electrode testing end of a tester, and is used for bearing viscous-state colloid; the supporting plate is arranged on the main frame, the lifting assembly is arranged on the supporting plate, the driving assembly is arranged on the main frame, the copper hammer is arranged on the supporting plate, the copper hammer is externally connected with a second electrode testing end of a tester, and the driving assembly is used for driving the lifting assembly to bear the supporting plate to be close to or away from the copper base in the vertical direction. The device has the effect that the distance between the copper hammer and the copper base can be conveniently adjusted.

Description

Technical Field

[0001] The present application relates to the field of viscous fluid colloid production, and in particular to a device for testing breakdown voltage of viscous fluid colloid with stable limited thickness. Background Art

[0002] Viscous colloids have excellent thermal conductivity, low hardness, high and low temperature resistance, good viscosity and other advantages, making them a very good thermal interface material, widely used in thermal conductivity and heat dissipation of various electronic appliances.

[0003] Currently, viscous colloids are mostly used as filling materials between CPUs and heat sinks. During product development and testing, in addition to requiring the product to have excellent thermal conductivity, it is also required to have high resistance and dielectric strength. However, the thermal resistance tester on the market is just a copper base and a copper hammer, which cannot accurately measure or limit the distance between the two, bringing operational difficulties to testing physical indicators such as resistance and breakdown voltage of viscous colloids.

[0004] There are two preferred solutions: ① Use a thickness limiting sheet: Use a polymer film with high resistivity and certain thickness, such as PP film, Pi film, etc., cut a circular hole of appropriate size in the center of the film, and place it between the two electrode test ends of the tester to limit the distance between the positive and negative electrodes of the tester;

[0005] ② Use motor: Use high-precision motors such as stepping motors to connect the two ends of the electrodes, and control the distance or thickness between the electrodes through the motor.

[0006] However, in actual applications, the use of limited thickness films is low-cost, but it does not necessarily produce the thickness required for the test. Sometimes, multiple films need to be stacked to obtain the required thickness. The gaps between the films increase the test error. Although the use of motors can improve accuracy and control the required thickness at will, the motors required for high-precision requirements have excellent performance and are very expensive, which increases high but unnecessary scientific research costs. There is still room for improvement. Utility Model Content

[0007] In order to facilitate the adjustment of the distance between the copper hammer and the copper seat, the present application provides a viscous fluid colloid stable thickness limit breakdown voltage testing device.

[0008] The present application provides a device for testing breakdown voltage of viscous fluid colloid with stable thickness limit, which adopts the following technical solution:

[0009] A device for testing breakdown voltage of a viscous colloid with stable limited thickness comprises a main frame, a copper hammer, a copper seat, a supporting plate, a lifting assembly and a driving assembly, wherein the copper seat is arranged on the main frame, the copper seat is externally connected to a first electrode testing end of a tester, the copper seat is used to carry the viscous colloid, the lifting assembly is arranged on the supporting plate, the driving assembly is arranged on the main frame, the copper hammer is arranged on the supporting plate, the copper hammer is externally connected to a second electrode testing end of the tester, and the driving assembly is used to drive the lifting assembly to carry the supporting plate to approach or move away from the copper seat in a vertical direction.

[0010] By adopting the above technical scheme, when it is necessary to test the viscous fluid colloid, the operator adjusts the lifting component through the driving component to rise or fall along the main frame, so that the copper hammer is close to or away from the copper seat. When the distance between the copper hammer and the copper seat is adjusted, the viscous fluid colloid can be placed on the copper seat, and the tester can be turned on to test the current viscous fluid colloid. Compared with the method of using a thickness limiting plate or a motor to adjust, the present application adjusts the lifting component through the driving component to adjust the distance between the copper hammer and the copper seat bracket. The mechanical structure is simple and easy to maintain.

[0011] Preferably, the main frame includes a base plate, a first bearing column and a second bearing column, the first bearing column and the second bearing column are hollow inside to form a hollow area for the lifting component to be set, the copper seat is set on the base plate along the geometric center of the base plate, the first bearing column and the second bearing column are symmetrically set on the base plate about the geometric center of the base plate, the lifting component includes a first rack and a second rack, the fixed ends of the first rack and the second rack are fixedly connected to the surface of the support plate facing the base plate, the first rack is slidably set in the first bearing column along the vertical direction, the second rack is slidably set in the second bearing column along the vertical direction, and the driving component is used to drive the first rack and the second rack to move in the vertical direction.

[0012] By adopting the above technical solution, through the cooperation of the first rack and the second rack, the driving component drives the first rack and the second rack to stably rise or fall along the first bearing column and the second bearing column respectively, so that the supporting plate can carry the copper hammer stably approaching or moving away from the copper seat in the vertical direction.

[0013] Preferably, the driving assembly includes a first gear, a second gear, a rotating shaft and an adjusting bolt. The first gear and the second gear are coaxially fixed to the rotating shaft. The rotating shaft is movably inserted into the first bearing column and the second bearing column in a horizontal direction. When the rotating shaft is inserted into the first bearing column and the second bearing column, the first gear is located in the first bearing column and meshed with the first rack; the second gear is located in the second bearing column and meshed with the second rack, and the adjusting bolt is coaxially fixed to the rotating shaft located outside the first bearing column.

[0014] By adopting the above technical scheme, since the first gear and the second gear are respectively meshed with the first rack and the second rack, and the adjusting bolt is coaxially fixed with the rotating shaft, when the operator turns the adjusting bolt, the rotating shaft rotates synchronously with the adjusting bolt, so that the first gear and the second gear rotate with the rotating shaft to drive the first rack and the second rack to move in the vertical direction. Through the above process, it is convenient to adjust the distance between the copper seat and the copper hammer to adapt to the detection needs of viscous colloids of different thicknesses, and it is highly practical.

[0015] Preferably, sliding grooves are provided in the first bearing column and the second bearing column along the vertical direction, and the first rack and the second rack are slidingly matched with the sliding grooves in the first bearing column and the second bearing column respectively.

[0016] By adopting the above technical solution, the stability of the first rack and the second rack when they move along the first bearing column and the second bearing column respectively is limited by two sliding grooves, so as to reduce the deflection of the copper hammer when it moves in the vertical direction, and play a positive guiding role in maintaining the concentricity of the copper hammer and the copper seat, so as to improve the accuracy of the detection results.

[0017] Preferably, two groups of positioning components are further included, and the two groups of positioning components are respectively arranged on the first bearing column and the second bearing column, and the front side walls and the rear side walls of the first bearing column and the second bearing column are provided with adjustment grooves in the vertical direction. The positioning components include positioning blocks and positioning bolts, and the positioning bolts are passed through the adjustment grooves and extend to the outside of the adjustment grooves. The positioning bolts cooperate with the positioning blocks to stay at any point of the adjustment grooves, and the positioning bolts are used to limit the heights at which the first rack and the second rack stay in the vertical direction.

[0018] By adopting the above technical solution, when it is necessary to limit the distance between the copper seat and the copper hammer, the lowest point of the movement of the first rack and the second rack in the vertical direction can be limited by the cooperation of the positioning bolt and the positioning block. The operator rotates the adjusting bolt to make the first rack and the second rack move downward in the vertical direction. When the lower ends of the first rack and the second rack respectively abut against the positioning bolts located in the first bearing column and the second bearing column, the adjusting bolt will not be able to continue to rotate, thereby achieving the purpose of limiting the distance between the copper seat and the copper hammer.

[0019] Preferably, a scale ruler is provided at the edge of the adjustment slot located on one side of the positioning block along the length direction.

[0020] By adopting the above technical solution, the position of the positioning block can be quickly observed through the scale ruler, so as to accurately adjust the height of the positioning block along the vertical direction, thereby achieving relatively accurate adjustment of the distance between the copper hammer and the copper seat, which is highly practical.

[0021] Preferably, a mounting groove matching the contour of the copper seat is opened along the geometric center of the bottom plate, and the copper seat is installed in the mounting groove.

[0022] By adopting the above technical solution, the installation position of the copper seat is limited by the installation groove, so that each time the copper seat is removed or installed along the bottom plate, the position of the copper seat is relatively fixed. At the same time, it is also convenient to replace copper seats of different models to meet different testing requirements.

[0023] Preferably, a receiving hole is provided through the side wall of the bottom plate along the width direction to the mounting groove, and the first electrode testing end of the tester is connected to the copper seat along the receiving hole.

[0024] By adopting the above technical solution, when the copper seat is set in the installation groove, the first electrode test end of the tester is accommodated through the accommodating hole, reducing the exposure of the wire, which plays a positive guiding role in improving the overall safety.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. This application uses a driving component to adjust the lifting component to adjust the distance between the copper hammer and the copper seat bracket. The mechanical structure is simple and easy to maintain;

[0027] 2. Through the cooperation of the positioning bolt and the positioning block, the lowest point of the first rack and the second rack moving in the vertical direction is limited. When the lower ends of the first rack and the second rack are respectively in contact with the positioning bolts located in the first bearing column and the second bearing column, the adjusting bolt will not be able to continue to rotate, thereby achieving the purpose of limiting the distance between the copper seat and the copper hammer;

[0028] 3. The position of the positioning block can be quickly observed through the scale ruler, so as to accurately adjust the height of the positioning block along the vertical direction, thereby achieving relatively accurate adjustment of the distance between the copper hammer and the copper seat, which is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of a device for testing breakdown voltage of a viscous fluid colloid with stable thickness limit in an embodiment of the present application.

[0030] Figure 2 yes Figure 1 Schematic diagram of the explosion along the axis shown in the figure.

[0031] Figure 3 yes Figure 2 Enlarged schematic diagram of part A.

[0032] Figure 4 It is a schematic diagram of the overall structure of a viscous fluid colloid stable thickness limit breakdown voltage testing device in another embodiment of the present application.

[0033] Explanation of the reference numerals: 1. Main frame; 11. Bottom plate; 12. First bearing column; 13. Second bearing column; 2. Copper hammer; 3. Copper seat; 4. Support plate; 41. Connecting screw; 411. Protective cover; 42. Protective tube; 5. Lifting assembly; 51. First rack; 511. Slide rail; 52. Second rack; 6. Driving assembly; 61. First gear; 62. Second gear; 63. Rotating shaft; 64. Adjusting bolt; 7. Sliding groove; 8. Positioning assembly; 81. Positioning block; 82. Positioning bolt; 9. Scale ruler; 10. Mounting groove; 101. Accommodating hole; 102. Adjusting groove; 103. Guide column. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-3 This application is described in further detail.

[0035] The present application discloses a device for testing the breakdown voltage of a viscous colloid with stable thickness limit. Figure 1 A device for testing breakdown voltage of a viscous colloid with stable limited thickness comprises a main frame 1, a copper hammer 2, a copper seat 3, a supporting plate 4, a lifting assembly 5 and a driving assembly 6. The copper seat 3 is arranged on the main frame 1, and the copper seat 3 is externally connected to the first electrode test end of the tester. The copper seat 3 is used to carry the viscous colloid. The lifting assembly 5 is arranged on the supporting plate 4, and the driving assembly 6 is arranged on the main frame 1. The copper hammer 2 is arranged on the supporting plate 4, and the copper hammer 2 is externally connected to the second electrode test end of the tester. The driving assembly 6 is used to drive the lifting assembly 5 to carry the supporting plate 4 along the vertical direction to approach or move away from the copper seat 3.

[0036] Specifically, the main frame 1 and the supporting plate 4 are made of high-hardness, high-flame-retardant and non-conductive materials, such as polypropylene (PP), polyethylene (PE), urea-formaldehyde resin, epoxy resin and the like. In this embodiment, the preferred material is epoxy resin. Meanwhile, if the main frame 1 is made by 3D printing, the material of the main frame 1 is preferably polylactic acid (PLA) or polyethylene terephthalate glycol (PETG).

[0037] Meanwhile, the copper hammer 2 and the copper base are preferably made of copper, and brass is preferred in this embodiment, so as to provide good electrical conductivity for viscous flow colloid testing.

[0038] It should also be noted here that the tester is a conventional workpiece electrical performance testing component, which is used to detect physical indicators such as breakdown voltage, dielectric strength, and volume resistance. It is a prior art and its specific composition and working principle are not described in detail here.

[0039] Therefore, the implementation principle of the device for testing the breakdown voltage of a viscous fluid colloid with stable thickness limit in an embodiment of the present application is as follows: when the viscous fluid colloid needs to be tested, the operator adjusts the lifting component 5 to rise or fall along the main frame 1 through the driving component 6, so that the copper hammer 2 is close to or away from the copper seat 3. After the distance between the copper hammer 2 and the copper seat 3 is adjusted, the viscous fluid colloid can be placed on the copper seat 3, and the tester can be turned on to test the current viscous fluid colloid. Compared with the method of using a thickness limit plate or a motor to adjust, the present application adjusts the lifting component 5 through the driving component 6 to adjust the distance between the copper hammer 2 and the copper seat 3 in the bracket. The mechanical structure is simple and easy to maintain.

[0040] Reference Figure 1 and Figure 2The main frame 1 includes a bottom plate 11, a first bearing column 12 and a second bearing column 13. The corners of the bottom plate 11 can be chamfered to reduce the probability of injury to operators due to the sharp corners of the bottom plate 11. The first bearing column 12 and the second bearing column 13 are hollow inside to form a hollow area for the lifting component 5 to be set. The copper seat 3 is set on the bottom plate 11 along the geometric center of the bottom plate 11. The first bearing column 12 and the second bearing column 13 are symmetrically set on the bottom plate 11 about the geometric center of the bottom plate 11. The lifting component 5 includes a first rack 51 and a second rack 52. The fixed ends of the first rack 51 and the second rack 52 are fixedly connected to the surface of the supporting plate 4 facing the bottom plate 11. The first rack 51 is slidably set in the first bearing column 12 along the vertical direction, and the second rack 52 is slidably set in the second bearing column 13 along the vertical direction. The driving component 6 is used to drive the first rack 51 and the second rack 52 to move in the vertical direction.

[0041] Specifically, the support plate 4 is provided with a connecting screw 41 along the surface facing the bottom plate 11, and the corners of the support plate 4 can be chamfered to reduce the probability of injury to the operator due to the overly sharp corners of the support plate 4. The connecting screw 41 is made of metal material, and the connecting screw 41 is movable along the vertical direction from the geometric center of the support plate 4 to penetrate the support plate 4. The copper hammer 2 is threadedly connected to the connecting screw 41. At the same time, the connecting screw 41 extending from the upper surface of the support plate 4 is connected to the first electrode test end of the tester, so that when the tester is in the power-on state, the copper hammer 2 and the tester are in the conduction state. At the same time, the distance between the copper hammer 2 and the copper seat 3 is effectively increased by the connecting screw 41, and the distance between the copper hammer 2 and the copper seat 3 can be flexibly adjusted by the driving component 6.

[0042] At the same time, the connecting screw 41 is difficult to process and shape due to its long length. In the actual process, only 5CM (international unit, centimeter) threads can be opened at both ends of the connecting screw 41 along the length direction to meet the use requirements.

[0043] Correspondingly, since the copper hammer 2 is connected to the first electrode test end of the tester through the connecting screw 41, when the tester is in working state, the copper hammer 2 and the connecting screw 41 are in a high-voltage state. Therefore, in order to improve the overall safety performance and reduce the probability of dangerous situations caused by accidental touch by the operator, a protective tube 42 is installed on the lower surface of the support plate 4 facing the copper seat 3. The protective tube 42 is installed on the support plate 4 in a vertical direction. The interior of the protective tube 42 is hollow, forming a cavity for the connecting screw 41 to pass through, so that the connecting screw 41 is in a covered state, reducing the exposed area of ​​the connecting screw 41.

[0044] On the other hand, a protective sleeve 411 is threadedly fixed to one end of the connecting screw 41 away from the copper hammer 2. The material of the protective sleeve 411 can be the same as that of the main frame 1. Therefore, when the connecting screw 41 is installed on the supporting plate 4, the connecting screw 41 is locked on the supporting plate 4 by the protective sleeve 411, thereby reducing the vertical deflection of the copper hammer 2 carried by the connecting screw 41. Similarly, the connecting screw 41 exposed on the upper surface of the supporting plate 4 is covered by the protective sleeve 411, thereby further reducing the exposed area of ​​the connecting screw 41, which plays a positive guiding role in improving the overall safety performance.

[0045] At the same time, refer to Figure 2 and Figure 3 The first bearing column 12 and the second bearing column 13 are provided with sliding grooves 7 along the vertical direction, and the first rack 51 and the second rack 52 are slidingly matched with the sliding grooves 7 in the first bearing column 12 and the second bearing column 13 respectively.

[0046] Specifically, the first rack 51 and the second rack 52 have the same shape and composition, and the first rack 51 is described in detail below. The first rack 51 is integrally formed with slide rails 511 at both ends along the width direction, and the length of the slide rails 511 is the same as the length of the first rack 51. When the first rack 51 is set in the first bearing column 12, the slide rails 511 slide and cooperate with the sliding grooves 7 to limit the stability of the first rack 51 when it moves along the first bearing column 12, thereby reducing the deflection of the copper hammer 2 when following the support plate 4 to move in the vertical direction, and playing a positive guiding role in maintaining the concentricity of the copper hammer 2 and the copper seat 3, so as to improve the accuracy of the detection result.

[0047] Reference Figure 2 and Figure 3 The driving assembly 6 includes a first gear 61, a second gear 62, a rotating shaft 63 and an adjusting bolt 64. The first gear 61 and the second gear 62 are coaxially fixed with the rotating shaft 63. The rotating shaft 63 is movably penetrated in the first bearing column 12 and the second bearing column 13 along the horizontal direction. When the rotating shaft 63 is penetrated in the first bearing column 12 and the second bearing column 13, the first gear 61 is located in the first bearing column 12 and meshed with the first rack 51; the second gear 62 is located in the second bearing column 13 and meshed with the second rack 52. The adjusting bolt 64 is coaxially fixed with the rotating shaft 63 located outside the first bearing column 12.

[0048] Meanwhile, in actual application, grease may be applied to the first rack 51, the second rack 52, the first gear 61 and the second gear 62 to reduce mechanical wear.

[0049] Therefore, since the first gear 61 and the second gear 62 are respectively meshed with the first rack 51 and the second rack 52, and the adjusting bolt 64 is coaxially fixed with the rotating shaft 63, when the operator rotates the adjusting bolt 64, the rotating shaft 63 rotates synchronously with the adjusting bolt 64, so that the first gear 61 and the second gear 62 rotate with the rotating shaft 63, so as to drive the first rack 51 and the second rack 52 to move in the vertical direction. Through the above process, it is convenient to adjust the distance between the copper seat 3 and the copper hammer 2 to adapt to the detection needs of viscous colloids of different thicknesses, and it is highly practical.

[0050] In addition, in this embodiment, in order to reduce the force that the operator needs to apply when rotating the shaft 63 through the adjusting bolt 64, and at the same time improve the stability of the rotating shaft 63 when the adjusting bolt 64 rotates, so as to reduce the risk of breakage or deformation of the rotating shaft 63, preferably, the diameter of the adjusting bolt can be selected between 10 mm and 20 mm (International Unit, millimeters).

[0051] Reference Figure 1 and Figure 2 , and also includes two groups of positioning components 8, which are respectively arranged on the first bearing column 12 and the second bearing column 13. The front side walls and the rear side walls of the first bearing column 12 and the second bearing column 13 are provided with adjustment grooves 102 in the vertical direction. The positioning component 8 includes a positioning block 81 and a positioning bolt 82. The positioning bolt 82 is penetrated into the adjustment groove 102 and extends to the outside of the adjustment groove 102. The positioning bolt 82 cooperates with the positioning block 81 to stay at any point of the adjustment groove 102. The positioning bolt 82 is used to limit the height at which the first rack 51 and the second rack 52 stay in the vertical direction.

[0052] Specifically, since the components of the two sets of positioning components 8 are the same and the methods of installing them on the first supporting column 12 and the second supporting column 13 are the same, the method of installing the positioning components 8 on the first supporting column 12 is described in detail below.

[0053] Correspondingly, the external contour of the positioning block 81 is U-shaped, forming a clamping groove that can be clamped with the first supporting column 12. The width of the clamping groove is greater than the width of the first supporting column 12, so that the first supporting column 12 and the clamping groove are transitionally matched, which plays a positive guiding role in reducing the swing of the positioning block 81 when it moves in the vertical direction along the first supporting column 12.

[0054] At the same time, a scale ruler 9 is provided at the edge of the adjustment slot 102 located on one side of the positioning block 81 along the length direction, so that the operator can know the current height of the positioning block 81 in real time.

[0055] The specific adjustment method is, for example, when the copper hammer 2 is just in contact with the copper seat 3, the position of the positioning block 81 at the first bearing column 12 is in the initial state (0.00mm), and when it is necessary to test a viscous fluid colloid with a thickness of 2.00mm (international unit, millimeter), the operator first rotates the adjusting bolt 64 to make the first rack 51 and the second rack 52 carry the supporting plate 4 installed with the copper hammer 2 to move upward in the vertical direction, and then the operator loosens the positioning bolt 82, thereby releasing the lock between the positioning block 81 and the first bearing column 12, and moving the positioning block 81 to 2.00mm on the scale ruler 9. At this point, the positioning bolt 82 is locked so that the positioning block 81 can stay stably at the set height. When the operator again rotates the adjusting bolt 64 to make the first rack 51 and the second rack 52 carry the supporting plate 4 downward in the vertical direction, the limiting action of the positioning bolt 82 and the positioning block 81 limits the maximum distance of the downward movement of the free ends of the first rack 51 and the second rack 52 in the vertical direction (that is, when the free ends of the first rack 51 and the second rack 52 abut against the positioning bolt 82, the operator will not be able to rotate the adjusting bolt 64, and at this time the distance between the copper hammer 2 and the copper seat 3 is exactly 2.00 mm).

[0056] Reference Figure 1 and Figure 2 A mounting groove 10 matching the contour of the copper seat 3 is opened along the geometric center of the bottom plate 11, and the copper seat 3 is installed in the mounting groove 10. At the same time, an accommodating hole 101 is opened along the side wall of the bottom plate 11 in the width direction to penetrate the mounting groove 10, and the first electrode test end of the tester is connected to the copper seat 3 along the accommodating hole 101.

[0057] Therefore, the installation position of the copper seat 3 is limited by the installation groove 10, so that each time the copper seat 3 is removed or installed along the bottom plate 11, the position of the copper seat 3 is relatively fixed. At the same time, it is also convenient to replace different models of copper seats 3 to meet different testing requirements. When the copper seat 3 is set in the installation groove 10, the first electrode test end of the tester is accommodated through the accommodating hole 101 to reduce the exposure of the wire, which plays a positive guiding role in improving the overall safety.

[0058] In summary, in this embodiment, since the thickness of the viscous fluid colloid to be tested is different, the distance between the copper hammer 2 and the copper seat 3 is variable, which results in the main frame 1, the supporting plate 4, the lifting assembly 5 and the driving assembly 6 having various sizes. The specific sizes of each component are not described in detail here.

[0059] In addition, please refer to Figure 4In another embodiment, in order to improve the stability of the supporting plate 4 when it moves along the first supporting column 12 and the second supporting column 13 in the vertical direction and reduce the swing of the supporting plate 4 during the movement, a guide column 103 is arranged on the bottom plate 11, and four guide columns 103 are arranged. The four guide columns 103 are fixed on the bottom plate 11 in a rectangular array along the corners of the bottom plate 11, and the spatial position relationship between the four guide columns 103 and the bottom plate 11 is vertically arranged. At the same time, four guide holes are opened in a rectangular array along the corners of the supporting plate, so that the supporting plate 4 can stably move up and down along the four guide columns 103 through the four guide holes.

[0060] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A device for testing breakdown voltage of viscous colloid with stable thickness limit, characterized by: The invention comprises a main frame (1), a copper hammer (2), a copper seat (3), a supporting plate (4), a lifting component (5) and a driving component (6), wherein the copper seat (3) is arranged on the main frame (1), the copper seat (3) is externally connected to a first electrode testing end of a tester, the copper seat (3) is used to carry a viscous fluid colloid, the lifting component (5) is arranged on the supporting plate (4), the driving component (6) is arranged on the main frame (1), the copper hammer (2) is arranged on the supporting plate (4), the copper hammer (2) is externally connected to a second electrode testing end of the tester, and the driving component (6) is used to drive the lifting component (5) to carry the supporting plate (4) to move closer to or farther from the copper seat (3) in a vertical direction.

2. The device for testing breakdown voltage of a viscous colloid with stable thickness limit according to claim 1, characterized in that: The main frame (1) comprises a bottom plate (11), a first bearing column (12) and a second bearing column (13); the first bearing column (12) and the second bearing column (13) are hollow inside to form a hollow area for the lifting component (5) to be arranged; the copper seat (3) is arranged on the bottom plate (11) along the geometric center of the bottom plate (11); the first bearing column (12) and the second bearing column (13) are symmetrically arranged on the bottom plate (11) about the geometric center of the bottom plate (11); the lifting component (5 ) comprises a first rack (51) and a second rack (52), wherein the fixed ends of the first rack (51) and the second rack (52) are fixedly connected to the surface of the supporting plate (4) facing the base plate (11), the first rack (51) is slidably arranged in the first bearing column (12) along the vertical direction, and the second rack (52) is slidably arranged in the second bearing column (13) along the vertical direction, and the driving component (6) is used to drive the first rack (51) and the second rack (52) to move in the vertical direction.

3. The device for testing breakdown voltage of a viscous colloid with stable thickness limit according to claim 2, characterized in that: The driving assembly (6) comprises a first gear (61), a second gear (62), a rotating shaft (63) and an adjusting bolt (64); the first gear (61) and the second gear (62) are coaxially fixed with the rotating shaft (63); the rotating shaft (63) is movably inserted into the first bearing column (12) and the second bearing column (13) in a horizontal direction; when the rotating shaft (63) is inserted into the first bearing column (12) and the second bearing column (13), the first gear (61) is located in the first bearing column (12) and meshed with the first rack (51); the second gear (62) is located in the second bearing column (13) and meshed with the second rack (52); the adjusting bolt (64) is coaxially fixed with the rotating shaft (63) located outside the first bearing column (12).

4. The device for testing breakdown voltage of a viscous colloid with stable thickness limit according to claim 3, characterized in that: The first bearing column (12) and the second bearing column (13) are provided with sliding grooves (7) in the vertical direction, and the first rack (51) and the second rack (52) are respectively slidably matched with the sliding grooves (7) in the first bearing column (12) and the second bearing column (13).

5. The device for testing breakdown voltage of viscous fluid colloid with stable thickness limit according to claim 4, characterized in that: It also includes two groups of positioning components (8), the two groups of positioning components (8) are respectively arranged on the first bearing column (12) and the second bearing column (13), the front side walls and the rear side walls of the first bearing column (12) and the second bearing column (13) are both provided with adjustment grooves (102) in the vertical direction, the positioning components (8) include positioning blocks (81) and positioning bolts (82), the positioning bolts (82) are passed through the adjustment grooves (102) and extend to the outside of the adjustment grooves (102), the positioning bolts (82) cooperate with the positioning blocks (81) to stay at any point of the adjustment grooves (102), and the positioning bolts (82) are used to limit the heights at which the first rack (51) and the second rack (52) stay in the vertical direction.

6. The device for testing breakdown voltage of viscous fluid colloid with stable thickness limit according to claim 5, characterized in that: A scale ruler (9) is provided at the edge of the adjustment slot (102) located on one side of the positioning block (81) along the length direction.

7. The device for testing breakdown voltage of viscous colloid with stable thickness limit according to claim 2, characterized in that: The bottom plate (11) is provided with a mounting groove (10) along the geometric center thereof, the mounting groove being adapted to the contour of the copper seat (3), and the copper seat (3) is mounted in the mounting groove (10).

8. The device for testing breakdown voltage of viscous fluid colloid with stable thickness limit according to claim 7, characterized in that: The bottom plate (11) is provided with an accommodating hole (101) extending through the side wall in the width direction to the mounting groove (10), and the first electrode testing end of the tester is connected to the copper seat (3) along the accommodating hole (101).

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