Device for testing electrical property of electrical contact material

Abstract

The invention relates to the technical field of electrical performance testing, and discloses an electrical contact material electrical performance testing device, which comprises a base, a detection module and a sealing module, the detection module and the sealing module are both arranged on the base, the detection module is used for carrying out electrical performance testing on an electrical contact material, the sealing module comprises a sealing ring and a sealing cover, and the sealing ring and the sealing cover are arranged on the base. The sealing ring is arranged on the base, the detection module is arranged in the sealing ring, and the sealing cover is connected to the sealing ring in a sliding mode; when the sealing cover blocks the opening of the sealing ring, the detection module is in a sealed state, the detection module is arranged in the sealing ring, and the sealing cover blocks the opening of the sealing ring, so that the detection module is in a sealed environment, when the detection module carries out detection, gas is consumed when the movable contact piece is in contact with the static contact piece, and the detection module is in a sealed state. And a negative pressure environment is formed in the sealing ring, so that the electrical contact material in the sealing ring is in the negative pressure environment.

Description

Technical Field

[0001] The present application relates to the technical field of electrical performance testing, and in particular to an electrical performance testing device for electrical contact materials. Background Art

[0002] The electrical contact material is usually a moving contact piece and a stationary contact piece. The trigger mechanism pushes the moving contact piece to abut against the stationary contact piece to realize the connection between the two circuits. The electrical performance test of the electrical contact material needs to be tested by a test device. The application scenarios of the electrical contact material are wide. The electrical contact material can be used in electrical equipment in a sealed environment or in explosion-proof electrical appliances.

[0003] The testing device comprises a base, a moving component is arranged on the base, a pushing bar is arranged on the moving component, and the moving component is used for driving the pushing bar to abut against the moving contact piece.

[0004] Electrical contact materials can be used in a sealed environment. In the sealed environment, gas is continuously consumed, so that the electric contact materials are under negative pressure conditions. The electrical properties of the electric contact materials in the negative pressure environment are different from the electrical properties of the electric contact materials in the normal environment. The electrical properties of the electric contact materials detected in the normal environment are difficult to apply to the negative pressure environment. Therefore, it is necessary to design a test device that can detect the electrical properties of the electric contact materials in a sealed environment. Summary of the invention

[0005] In order to detect the electrical properties of an electrical contact material in a sealed environment, the present application provides an electrical properties testing device for an electrical contact material.

[0006] The present application provides an electrical contact material electrical performance testing device, which adopts the following technical solution: An electrical performance testing device for electrical contact materials comprises a base, a detection module and a sealing module, wherein the detection module and the sealing module are both arranged on the base, the detection module is used to perform electrical performance testing on the electrical contact material, the sealing module comprises a sealing ring and a sealing cover, the sealing ring is arranged on the base, the detection module is arranged in the sealing ring, and the sealing cover is slidably connected to the sealing ring; when the sealing cover blocks the opening of the sealing ring, the detection module is in a sealed state.

[0007] By adopting the above technical solution, the detection module is arranged inside the sealing ring, and the sealing cover blocks the opening of the sealing ring, so that the detection module is in a sealed environment. When the detection module performs detection, the gas will be consumed when the moving contact piece and the static contact piece come into contact, so that a negative pressure environment is formed inside the sealing ring. Therefore, the electrical contact material in the sealing ring is in a negative pressure environment; or the staff conducts external air extraction and then seals the sealing ring with the sealing cover to achieve that the electrical contact material is in a negative pressure environment; thereby, the electrical properties of the electrical contact material can be detected in a negative pressure environment or a normal environment.

[0008] Optionally, the detection module includes a pushing structure, a placing structure and an installation structure, the installation structure is for installing the moving contact piece, the pushing structure includes a pushing component and a pushing moving component, the pushing component is arranged on the pushing moving component, the pushing moving component is arranged on the base, the pushing component is used to push the moving contact piece, the pushing moving component is used to drive the pushing component to adjust its position, the placing structure includes a placing seat and a placing moving component, the placing seat is arranged on the placing moving component, the placing moving component is arranged on the base, the placing seat is for placing the static contact piece, and the placing moving component is used to adjust the position of the static contact piece.

[0009] By adopting the above technical solution, the moving contact piece is set on the pushing component, and the pushing moving component can drive the pushing component to move, so as to realize the position adjustment of the moving contact piece to adapt to moving contact pieces of different sizes; the static contact piece is placed on the placing seat, and the placing moving component drives the placing seat to move, so that the placing moving component can adjust the position of the static contact piece, so that the static contact piece can adapt to moving contact pieces of different heights, thereby increasing the range of the detection module to detect the electrical properties of electrical contact materials of different sizes.

[0010] Optionally, the pushing and moving component includes a rotating rod, a fixed bar and a fixed seat, the fixed seat is arranged on the base, the rotating rod is rotatably connected to the fixed seat, the fixed bar is threadedly connected to the rotating rod, the fixed bar is slidably arranged on the fixed seat, and the pushing component is arranged on the fixed bar; when the rotating rod rotates, the rotating rod drives the fixed bar to approach or move away from the mounting structure.

[0011] By adopting the above technical solution, the staff rotates the rotary rod, and the rotary rod rotates on the fixed seat. Since the fixing bar is threadedly connected to the rotary rod, the fixing bar can move on the fixed seat, so that the fixing bar can drive the pushing component to move. Due to the different distances between the fixing bar and the mounting structure, the pushing distance of the pushing component on the moving contact piece is different, so that the moving contact piece and the static contact piece can be more closely matched, further increasing the stability of the electrical performance test of the electrical contact material.

[0012] Optionally, the mounting structure includes a mounting seat, a mounting block and a mounting bolt, the mounting seat is provided with a mounting groove for inserting the mounting block, the mounting bolt is rotatably connected to the mounting block, and the mounting bolt is threadedly connected to the mounting seat; when the mounting bolt is threadedly connected to the mounting seat, the mounting block is fixed on the mounting seat, and at this time the moving contact piece is fixed between the mounting block and the groove wall of the mounting groove.

[0013] By adopting the above technical solution, the mounting block and the mounting seat can be fixed to each other by threading the mounting bolts on the mounting seat, so that the moving contact piece can be positioned between the mounting block and the groove wall of the mounting groove, so that the moving contact piece can be stably located on the mounting seat, reducing the possibility of the moving contact piece detaching from the mounting seat.

[0014] Optionally, a sealing cover is slidably connected to the sealing cover, a first sealing strip and a second sealing strip are provided on the sealing ring, the first sealing strip and the second sealing strip both extend along the inner wall of the sealing ring, and a sealing block is provided on the sealing cover; when the sealing block is located between the first sealing strip and the second sealing strip, the sealing cover can seal the sealing ring.

[0015] By adopting the above technical solution, the staff first slides the sealing cover to allow the sealing cover to seal the sealing ring, and then slides the sealing cover to allow the sealing cover to be located inside the sealing ring, so that the sealing block is located between the first sealing strip and the second sealing strip. Since the first sealing strip and the second sealing strip extend along the inner wall of the sealing ring, the sealing block, the first sealing strip and the second sealing strip can seal the inside of the sealing ring, so that the detection module can be in a sealed environment. When the electrical performance of the electrical contact material is tested, the gas inside the sealing ring is consumed, so that the detection module is in a negative pressure environment, so that the detection of the electrical contact material is more accurate, and the simulation of the electrical contact material can be detected in a sealed state.

[0016] Optionally, the sealing ring is provided with a through hole, a moving strip is slidably connected in the through hole, and the moving strip is located between the first sealing strip and the second sealing strip; when the sealing block is located between the first sealing strip and the second sealing strip, the moving strip protrudes from the outer wall of the sealing ring.

[0017] By adopting the above technical solution, the movable strip is located between the first sealing strip and the second sealing strip. When the sealing cover is located in the sealing ring, the sealing block is located between the first sealing strip and the second sealing strip, so that the sealing block pushes the movable strip to move in the perforation, allowing the movable strip to protrude from the outer wall of the sealing ring. At this time, the staff will know that there is no need to push the sealing cover anymore, and the inside of the sealing ring is in a sealed state, thereby preventing the staff from excessively pushing the sealing cover and causing the sealing block to be separated from between the first sealing strip and the second sealing strip.

[0018] Optionally, a locking bar is rotatably connected to the sealing cover, and a moving groove for inserting a moving bar is provided on the locking bar; when the moving bar is inserted into the moving groove, the locking bar restricts the movement of the sealing cover.

[0019] By adopting the above technical solution, when the sealing cover seals the sealing ring, the movable bar protrudes from the outer wall of the sealing ring. At this time, the staff rotates the locking bar to allow the movable bar to be located in the movable groove, so that the movable bar can limit the movement of the locking bar, and the locking bar can be stably located on the sealing ring, thereby realizing mutual fixation of the sealing ring and the sealing cover, and preventing the sealing cover from moving on the sealing ring.

[0020] Optionally, the sealing ring is provided with an operating hole connected to the through hole, an operating strip is slidably connected to the operating hole, the sealing ring is provided with an exhaust hole connected to the operating hole, the sealing ring is provided with an exhaust component, the exhaust component exhausts air from the inside of the sealing ring through the exhaust hole, the exhaust hole is located on the moving path of the operating strip, and the moving strip is provided with an operating groove for inserting the operating strip; when the operating strip is inserted into the operating groove, the moving strip does not block the exhaust hole; when the moving strip does not protrude from the outer wall of the sealing ring, the operating groove is not on the moving path of the moving strip.

[0021] By adopting the above technical solution, the staff slides the operating strip so that the operating strip does not block the exhaust hole. The exhaust component can exhaust air from the inside of the sealing ring through the exhaust hole, so that the inside of the sealing ring is in a negative pressure state, and there is no need for the electrical contact material to consume part of the gas. At this time, the operating strip is inserted into the operating groove; if the moving strip does not protrude from the outer wall of the sealing ring and the operating groove is not on the moving path of the moving strip, the operating strip is difficult to insert into the operating groove. When moving the operating strip, the staff can know that the sealing cover is not sealed in place, thereby avoiding the operation of exhausting air from the exhaust component when it is not sealed in place.

[0022] Optionally, the operating strip is provided with an exhaust hole, and the sealing ring is provided with an exhaust hole connected to the operating hole; when the operating strip is inserted into the operating groove, the operating strip blocks the exhaust hole.

[0023] By adopting the above technical solution, when the operating strip is inserted into the operating groove, the operating strip can block the vent hole, making it difficult for external gas to enter the interior of the sealing ring from the vent hole; when the electrical contact material inspection is completed, the staff slides the operating strip to connect the exhaust hole in the operating strip to the vent hole, so that the air outside the sealing ring can enter the interior of the sealing ring, and the interior of the sealing ring is restored to a normal state, so that subsequent staff can move the sealing cover, reduce the damage to the sealing cover due to the negative pressure state inside the sealing ring, and extend the service life of the sealing cover.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. The detection module is arranged inside the sealing ring, and the sealing cover blocks the opening of the sealing ring, so that the detection module is in a sealed environment. When the detection module is detecting, the gas will be consumed when the moving contact piece and the static contact piece come into contact, so that a negative pressure environment is formed inside the sealing ring. Therefore, the electrical contact material in the sealing ring is in a negative pressure environment; or the staff conducts external air extraction and then blocks the sealing ring with the sealing cover to achieve that the electrical contact material is in a negative pressure environment; thereby, the electrical properties of the electrical contact material can be detected in a negative pressure environment or a normal environment.

[0025] 2. The staff rotates the rotary rod, and the rotary rod rotates on the fixed seat. Since the movable bar is threadedly connected to the rotary rod, the movable bar can move on the fixed seat, so that the movable bar can drive the pushing component to move. Since the pushing component has the same force on the moving contact piece, due to the different distances between the moving bar and the mounting structure, the pushing component has different forces on the moving contact piece, so that the moving contact piece can abut against the static contact piece with different forces to test the electrical properties of the electrical contact material under different pressures. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of Example 1; Figure 2 is a schematic diagram of the structure of the highlight detection module in Example 1; Figure 3 is a structural schematic diagram highlighting the installation structure in Example 1; Figure 4 yes Figure 3 A magnified schematic diagram of part A; Figure 5 is a schematic structural diagram of Example 2; Figure 6 is along Figure 5 Sectional view along the midline BB; Figure 7 yes Figure 6 Enlarged schematic diagram of part C.

[0027] Figure numerals: 1, base; 2, detection module; 21, pushing structure; 22, placement structure; 221, placement seat; 222, placement moving assembly; 223, placement height assembly; 23, mounting structure; 231, mounting seat; 232, mounting block; 233, mounting bolt; 234, mounting groove; 24, pushing assembly; 25, pushing moving assembly; 251, rotating rod; 252, fixing bar; 253, fixing seat; 254, fixing block; 26, height moving assembly; 261, height seat; 262, rotating rod; 263, height bar; 264, moving block; 265 , height block; 266, height protrusion; 267, rotating hole; 268, first rotating block; 269, second rotating block; 3, sealing module; 31, sealing ring; 311, first sealing strip; 312, second sealing strip; 32, sealing cover; 321, locking strip; 322, moving groove; 33, exhaust hole; 331, exhaust piece; 34, perforation; 341, moving strip; 342, operating groove; 35, operating hole; 351, operating strip; 352, operating block; 36, through hole; 37, venting hole; 371, exhaust hole; 4, blocking cover; 41, blocking ring; 42, blocking block. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-7This application is described in further detail.

[0029] Example 1 This embodiment discloses a device for testing the electrical properties of electrical contact materials. Figure 1 and Figure 2 , an electrical performance testing device for electrical contact materials, including a base 1, a detection module 2 and a sealing module 3, wherein the detection module 2 and the sealing module 3 are both arranged on the base 1.

[0030] Reference Figure 2 and Figure 3 The detection module 2 includes a pushing structure 21, a placement structure 22 and a mounting structure 23. The mounting structure 23 includes a mounting seat 231, a mounting block 232 and a mounting bolt 233. The mounting seat 231 is fixedly connected to the base 1. A mounting groove 234 for placing the mounting block 232 is provided on the side of the mounting seat 231. The mounting groove 234 penetrates to one side of the mounting seat 231 in the horizontal direction.

[0031] Reference Figure 3 , the mounting bolt 233 is rotatably connected to the mounting block 232, and the mounting bolt 233 is threadedly connected to the mounting groove 234. When the mounting bolt 233 is threadedly connected to the mounting seat 231, the mounting block 232 can be fixed in the mounting groove 234. The staff first places the movable contact piece in the mounting groove 234, and then threadably connects the mounting bolt 233 to the mounting seat 231. At this time, the movable contact piece is located between the groove wall of the mounting groove 234 and the mounting block 232, so that one end of the movable contact piece is fixed to the fixing seat 253.

[0032] Reference Figure 2 and Figure 3 The pushing structure 21 includes a pushing assembly 24, a pushing moving assembly 25 and a height moving assembly 26. The pushing assembly 24 includes a pushing cylinder, and the driving shaft of the pushing cylinder can abut against the moving contact piece. The pushing moving assembly 25 includes a rotating rod 251, a fixing bar 252, and a fixing seat 253. The fixing seat 253 is fixedly connected to the base 1, and a fixing block 254 is fixedly connected to the fixing seat 253. The rotating rod 251 is rotatably connected to the fixing block 254. The height moving assembly 26 is fixedly connected to the fixing bar 252, the rotating rod 251 is threadedly connected to the fixing bar 252, and the fixing bar 252 is slidably connected to the fixing seat 253. When the rotating rod 251 rotates, the rotating rod 251 drives the fixing bar 252 to move on the fixing seat 253, so that the fixing bar 252 can move in a direction close to or away from the mounting structure 23.

[0033] Reference Figure 3 and Figure 4The height moving assembly 26 includes a height seat 261, a rotating rod 262 and a height bar 263. The static contact piece is detachably connected to the height seat 261, and the height seat 261 is slidably connected to the fixed bar 252. A moving block 264 is fixedly connected to the surface of the fixed bar 252, and the rotating rod 262 is rotatably connected to the moving block 264.

[0034] Reference Figure 4 The height bar 263 is rotatably connected to the fixed bar 252. A height block 265 is fixedly connected to the surface of the height bar 263. The height block 265 and the height bar 263 extend in different directions. The height blocks 265 and the height blocks 265 are arranged perpendicular to each other. A height protrusion 266 is fixedly connected to the surface of the height seat 261. The height protrusion 266 is located on the rotation path of the height block 265.

[0035] Reference Figure 4 A rotating hole 267 is provided on the surface of the height bar 263, through which the rotating rod 262 passes, and the rotating hole 267 extends along the length direction of the height bar 263. A first rotating block 268 and a second rotating block 269 are fixedly connected on the surface of the rotating rod 262, and the height bar 263 is located between the first rotating block 268 and the second rotating block 269, and the gap between the first rotating block 268 and the second rotating block 269 is greater than the thickness of the height bar 263.

[0036] Reference Figure 3 and Figure 4 When the rotating rod 262 rotates, the first rotating block 268 or the second rotating block 269 can push the height bar 263 to move, allowing the height bar 263 to rotate on the fixed bar 252, and the height bar 263 drives the height block 265 to move, and the height block 265 pushes the height protrusion 266 to move, so that the height seat 261 can move, allowing the static contact piece to adjust its height to adapt to the moving contact pieces of different heights.

[0037] Reference Figure 2 , Figure 3 and Figure 4 The placement structure 22 includes a placement seat 221, a placement moving component 222 and a placement height component 223. The placement seat 221 is fixedly connected to the base 1. The structure of the placement moving component 222 is the same as that of the pushing moving component 25. The structure of the placement height component 223 is the same as that of the height moving component 26.

[0038] Reference Figure 1 and Figure 2 The sealing module 3 includes a sealing ring 31 and a sealing cover 32. The sealing ring 31 is fixedly connected to the base 1, and the detection module 2 is located inside the sealing ring 31. The sealing cover 32 is slidably connected to the sealing ring 31. When the sealing cover 32 completely blocks the opening of the sealing ring 31, the detection module 2 is inside the sealing ring 31.

[0039] Reference Figure 1 The side wall of the sealing ring 31 is provided with an exhaust hole 33, and the base 1 is provided with an exhaust member 331, which can exhaust air from the inside of the sealing ring 31 through the exhaust hole 33 to form a negative pressure inside the sealing ring 31. Alternatively, the exhaust member 331 can fill the inside of the sealing ring 31 with an inert gas, so that the inside of the sealing ring 31 is at normal pressure and filled with inert gas.

[0040] The implementation principle of Example 1 is as follows: the staff first installs the moving contact piece in the installation groove 234, and then rotates the installation bolt 233 to allow the installation block 232 to abut the moving contact piece to achieve the installation of the moving contact piece, and installs the static contact piece on the placement seat 221, and then starts the pushing cylinder to allow the pushing cylinder to drive the moving contact piece to abut the static contact piece to achieve the detection of the electrical contact material.

[0041] Example 2 Reference Figure 5 and Figure 6 The difference between this embodiment and embodiment 1 is that a first sealing strip 311 and a second sealing strip 312 are fixedly connected to the inner wall of the sealing ring 31, the first sealing strip 311 and the second sealing ring 31 both extend along the circumference of the sealing ring 31, and there is a certain distance between the first sealing strip 311 and the second sealing strip 312.

[0042] Reference Figure 6 and Figure 7 The sealing cover 32 is slidably connected to the surface of the sealing cover 32, and the sealing cover 4 is fixedly connected to the surface facing the base 1. The sealing ring 41 extends along the circumference of the sealing cover 4. Two sealing blocks 42 are fixedly connected to the outer surface of the sealing ring 41. When the sealing cover 4 protrudes from the sealing cover 32, the surface of the sealing ring 41 away from the sealing cover 4 and the surface of the sealing cover 32 can be coplanar. The staff presses the sealing cover 4 to make the sealing ring 41 located inside the sealing ring 31. At this time, the sealing block 42 is located between the first sealing strip 311 and the second sealing strip 312.

[0043] Reference Figure 7 The inner wall of the sealing ring 31 is provided with a through hole 34, and a moving strip 341 is slidably connected to the through hole 34, and the moving strip 341 can be located between the first sealing strip 311 and the second sealing strip 312. When the moving strip 341 is not located on the outer surface of the sealing ring 31, one end of the moving strip 341 is located between the first sealing strip 311 and the second sealing strip 312. If the blocking block 42 moves between the first sealing strip 311 and the second sealing strip 312, the blocking block 42 drives the moving strip 341 to move, so that the moving strip 341 protrudes from the outer surface of the sealing ring 31, and the staff can know that the sealing cover 4 has been sealed.

[0044] Reference Figure 7Two locking bars 321 are rotatably connected on the surface of the sealing cover 32. The locking bars 321 have a certain elastic deformation capability. A moving groove 322 is provided on the surface of the locking bars 321 for the moving bars 341 to be inserted. When the moving bars 341 protrude from the outer surface of the sealing ring 31, the staff rotates the locking bars 321 to place the moving bars 341 in the moving groove 322. At this time, the moving bars 341 restrict the movement of the locking bars 321.

[0045] Reference Figure 7 An operating hole 35 connected to the through hole 34 is provided in the sealing ring 31, and the exhaust hole 33 is connected to the operating hole 35. An operating bar 351 is slidably connected in the operating hole 35. A through hole 36 connected to the operating hole 35 is provided on the outer surface of the sealing ring 31, and the through hole 36 extends in the vertical direction. An operating block 352 is fixedly connected to the surface of the operating bar 351, and the operating block 352 slides in the through hole 36. An operating groove 342 for inserting the operating bar 351 is provided on the surface of the moving bar 341 facing the operating hole 35. When the moving bar 341 protrudes from the outer wall of the sealing ring 31, the operating groove 342 is located on the moving path of the operating bar 351. When the moving bar 341 protrudes from the inner wall of the sealing ring 31, the operating groove 342 is not on the moving path of the operating bar 351.

[0046] Reference Figure 7 The sealing ring 31 is provided with an air release hole 37 connected to the operating hole 35, and the surface of the operating strip 351 is provided with an exhaust hole 371. When the operating strip 351 is located in the operating groove 342, the operating strip 351 blocks the exhaust hole 371. When the operating strip 351 is separated from the operating groove 342, the exhaust hole 371 can be connected to the air release hole 37. At this time, the operating strip 351 circulates gas through the exhaust hole 371, so that the air pressure inside the sealing ring 31 is the same as the air pressure outside the sealing ring 31, so that the staff can slide the sealing cover 4.

[0047] Reference Figure 7 , the staff slides the operating strip 351 to disengage the operating slot 342. At this time, when the operating strip 351 moves, the exhaust hole 371 is aligned with the vent hole 37, so that the gas inside the sealing ring 31 and the gas outside the sealing ring 31 can circulate until the air pressure inside the sealing ring 31 is the same. At this time, the staff can pull the sealing cover 4 to allow the sealing cover 32 to slide on the sealing ring 31. The staff continues to move the operating strip 351 to allow the operating strip 351 to block the exhaust hole 33. At this time, the operating strip 351 blocks the vent hole 37, so that the inside of the sealing ring 31 is in a sealed state.

[0048] The implementation principle of Example 2 is as follows: the staff first slides the sealing cover 32 to allow the sealing cover 32 to seal the opening of the sealing ring 31. At this time, the staff presses the sealing cover 4 to allow the sealing block 42 to be located between the first sealing strip 311 and the second sealing strip 312. The sealing block 42 drives the moving bar 341 to protrude from the outer wall of the sealing ring 31. Then the staff rotates the locking bar 321 to allow the moving bar 341 to be located in the moving groove 322, so that the moving bar 341 limits the sealing cover 32. Finally, according to whether a negative pressure environment is needed, the staff slides the operating bar 351 to insert the operating bar 351 into the operating groove 342. At this time, the vacuum part 331 extracts the gas inside the sealing ring 31.

[0049] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0050] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present application should be included in the protection scope of the present application.

Claims

1. An electrical performance testing device for electrical contact materials, characterized in that: The invention comprises a base (1), a detection module (2) and a sealing module (3), wherein the detection module (2) and the sealing module (3) are both arranged on the base (1), the detection module (2) is used to perform an electrical performance test on an electrical contact material, the sealing module (3) comprises a sealing ring (31) and a sealing cover (32), the sealing ring (31) is arranged on the base (1), the detection module (2) is arranged in the sealing ring (31), and the sealing cover (32) is slidably connected to the sealing ring (31); when the sealing cover (32) blocks the opening of the sealing ring (31), the detection module (2) is in a sealed state.

2. The electrical performance testing device for electrical contact materials according to claim 1, characterized in that: The detection module (2) comprises a pushing structure (21), a placement structure (22) and a mounting structure (23); the mounting structure (23) is used for mounting a moving contact piece; the pushing structure (21) comprises a pushing component (24) and a pushing moving component (25); the pushing component (24) is arranged on the pushing moving component (25); the pushing moving component (25) is arranged on the base (1); the pushing component (24) is used to push the moving contact piece; the pushing moving component (25) is used to drive the pushing component (24) to adjust its position; the placement structure (22) comprises a placement seat (221) and a placement moving component (222); the placement seat (221) is arranged on the placement moving component (222); the placement moving component (222) is arranged on the base (1); the placement seat (221) is used for placing a stationary contact piece; and the placement moving component (222) is used to adjust the position of the stationary contact piece.

3. The electrical performance testing device for electrical contact materials according to claim 2, characterized in that: The pushing and moving assembly (25) comprises a rotating rod (251), a fixing bar (252) and a fixing seat (253); the fixing seat (253) is arranged on the base (1); the rotating rod (251) is rotatably connected to the fixing seat (253); the fixing bar (252) is slidably arranged on the fixing seat (253); the fixing bar (252) is threadedly connected to the rotating rod (251); and the pushing assembly (24) is arranged on the fixing bar (252); when the rotating rod (251) rotates, the rotating rod (251) drives the fixing bar (252) to approach or move away from the mounting structure (23).

4. The electrical performance testing device for electrical contact materials according to claim 2, characterized in that: The mounting structure (23) comprises a mounting seat (231), a mounting block (232) and a mounting bolt (233); the mounting seat (231) is provided with a mounting groove (234) for inserting the mounting block (232); the mounting bolt (233) is rotatably connected to the mounting block (232); and the mounting bolt (233) is threadedly connected to the mounting seat (231); when the mounting bolt (233) is threadedly connected to the mounting seat (231), the mounting block (232) is fixed to the mounting seat (231), and at this time, the movable contact piece is fixed between the mounting block (232) and the groove wall of the mounting groove (234).

5. The electrical performance testing device for electrical contact materials according to claim 1, characterized in that: The sealing cover (32) is slidably connected to a blocking cover (4); the sealing ring (31) is provided with a first sealing strip (311) and a second sealing strip (312); the first sealing strip (311) and the second sealing strip (312) extend along the inner wall of the sealing ring (31); and the sealing cover (32) is provided with a blocking block (42); when the blocking block (42) is located between the first sealing strip (311) and the second sealing strip (312), the blocking cover (4) can block the sealing ring (31).

6. The electrical performance testing device for electrical contact materials according to claim 5, characterized in that: The sealing ring (31) is provided with a through hole (34), and a moving strip (341) is slidably connected in the through hole (34), and the moving strip (341) is located between the first sealing strip (311) and the second sealing strip (312); when the blocking block (42) is located between the first sealing strip (311) and the second sealing strip (312), the moving strip (341) protrudes from the outer wall of the sealing ring (31).

7. The electrical performance testing device for electrical contact materials according to claim 6, characterized in that: A locking bar (321) is rotatably connected to the sealing cover (32), and a moving groove (322) is provided on the locking bar (321) for the moving bar (341) to be inserted into. When the moving bar (341) is inserted into the moving groove (322), the locking bar (321) restricts the movement of the sealing cover (32).

8. The electrical performance testing device for electrical contact materials according to claim 6, characterized in that: The sealing ring (31) is provided with an operating hole (35) connected to the through hole (34), an operating strip (351) is slidably connected in the operating hole (35), the sealing ring (31) is provided with an air extraction hole (33) connected to the operating hole (35), the sealing ring (31) is provided with an air extraction member (331), the air extraction member (331) extracts air from the inside of the sealing ring (31) through the air extraction hole (33), and the air extraction hole (33) Located on the moving path of the operating strip (351), the moving strip (341) is provided with an operating groove (342) for inserting the operating strip (351); when the operating strip (351) is inserted into the operating groove (342), the moving strip (341) does not block the air extraction hole (33); when the moving strip (341) does not protrude from the outer wall of the sealing ring (31), the operating groove (342) is not located on the moving path of the moving strip (341).

9. The electrical performance testing device for electrical contact materials according to claim 8, characterized in that: The operating strip (351) is provided with an exhaust hole (371), and the sealing ring (31) is provided with an exhaust hole (37) connected to the operating hole (35); when the operating strip (351) is inserted into the operating groove (342), the operating strip (351) blocks the exhaust hole (37).

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