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CN-122017717-A - A heavy current test fixture for inductor

CN122017717ACN 122017717 ACN122017717 ACN 122017717ACN-122017717-A

Abstract

The application relates to the technical field of electrical performance testing, in particular to a high-current testing tool for an inductor, which comprises an operation platform, wherein an installation seat is installed on the operation platform, a support frame is installed on the installation seat, an indexing rotating assembly is installed on the operation platform and close to the support frame, a plurality of clamp assemblies which are uniformly distributed in a ring shape are installed on the indexing rotating assembly, a cooling assembly is installed in the installation seat, a lifting assembly is installed on the support frame, a detection assembly is fixedly installed at the telescopic end of the lifting assembly corresponding to one clamp assembly, the cooling assembly is in sealing connection with the clamp assembly corresponding to the detection assembly, a clamping assembly is fixedly installed on the support frame corresponding to the other clamp assembly, the indexing rotating assembly drives the clamp assembly to rotate from the detection assembly to the clamping assembly, and a classified storage assembly is fixedly installed on the installation seat corresponding to the clamping assembly. The application not only solves the problem of high-temperature interference in the test process, but also improves the efficiency and the precision of the high-current test of the inductor.

Inventors

  • WANG ZHAO
  • CAO MENGQI
  • XIA XINGHUI
  • LI XIN

Assignees

  • 湖南名巨电子科技有限公司

Dates

Publication Date
20260512
Application Date
20260410

Claims (10)

  1. 1. A large-current test fixture for an inductor is characterized by comprising an operation platform (100), wherein an installation seat (101) is fixedly installed on the operation platform (100), a supporting frame (102) is fixedly installed on the installation seat (101), an indexing rotating assembly (200) is fixedly installed on the operation platform (100) and close to the supporting frame (102), a plurality of clamp assemblies (300) which are annularly and uniformly distributed are fixedly arranged on the indexing rotating assembly (200), a cooling assembly (400) is installed inside the installation seat (101), a lifting assembly (500) is fixedly installed on the supporting frame (102), a detection assembly (600) is fixedly installed at the telescopic end of the lifting assembly (500) corresponding to one clamp assembly (300), the cooling assembly (400) is in sealing connection with the clamp assembly (300) corresponding to the detection assembly (600), a clamping assembly (700) is fixedly installed on the supporting frame (102) corresponding to the other clamp assembly (300), the rotating assembly (200) drives the clamp assembly (300) to be clamped in the indexing direction corresponding to the clamping assembly (700) by the detection assembly (600), and the clamping assembly (700) is correspondingly installed on the storage assembly (700).
  2. 2. The high-current testing tool for the inductor according to claim 1, wherein the indexing rotating assembly (200) comprises a power box (201) fixedly installed on the operating platform (100), a driving motor (202) is fixedly installed on the power box (201), an output shaft of the driving motor (202) penetrates through one end inside the power box (201) to be in transmission connection with a worm shaft (203), the worm shaft (203) is rotatably connected inside the power box (201), a driving shaft (204) is rotatably connected inside the power box (201), a worm wheel (205) in meshing transmission with the worm shaft (203) is fixedly connected to the driving shaft (204), a driving disc (206) is fixedly connected to one end, penetrating through the power box (201), of the driving shaft (204), an indexing disc (207) is fixedly connected to the driving disc (206), and the clamp assembly (300) is fixedly installed on the indexing disc (207).
  3. 3. The high-current testing tool for the inductor is characterized in that the clamp assembly (300) comprises a clamp seat (301), a positioning groove (302) matched with the shape of the clamp assembly (700) when clamping the inductor to be tested is formed in the clamp seat (301), a heat dissipation box (303) is fixedly and hermetically connected to the outer portion of the clamp seat (301), a heat dissipation cavity is formed between the inner wall of the heat dissipation box (303) and the outer wall of the clamp seat (301), the heat dissipation box (303) is fixedly arranged on the indexing rotating assembly (200), an air inlet pipe (304) and an air outlet pipe (305) which are communicated with the heat dissipation cavity are fixedly and hermetically connected to the side wall of the heat dissipation box (303), an air inlet pipe mounting hole (306) is formed in the indexing rotating assembly (200) corresponding to the air inlet pipe (304) and the air outlet pipe (305), and the air inlet pipe (304) and the air outlet pipe (305) are hermetically mounted in the air inlet pipe mounting hole (306), and the air outlet pipe (306) can be connected with the cooling assembly (400) in a sealing manner.
  4. 4. The high-current test fixture for the inductor according to claim 1, wherein the cooling component (400) comprises a semiconductor refrigerating sheet (401), a refrigerating end of the semiconductor refrigerating sheet (401) is fixedly and thermally connected with a first heat exchange fin (402), a heating end of the semiconductor refrigerating sheet (401) is fixedly and thermally connected with a second heat exchange fin (403), an air inlet cover (404) is fixedly arranged outside the first heat exchange fin (402), an air outlet cover (405) is fixedly arranged outside the second heat exchange fin (403), the air inlet cover (404) and the air outlet cover (405) are fixedly arranged inside the mounting seat (101), a blast pipe (406) is fixedly and hermetically connected to the air inlet cover (404), an air return pipe (407) is fixedly and hermetically connected to the air outlet cover (405), one end of the blast pipe (406) and the air return pipe (407) penetrating through the side wall of the mounting seat (101) is connected with a switching seat (408), the air inlet cover (408) is fixedly connected with an air inlet channel (409) corresponding to the clamp component (300) and the air inlet channel (409), the air outlet channel (410) is fixedly and hermetically communicated with the air return pipe (407), and a fan (411) is fixedly arranged at one end, far away from the blast pipe (406), of the air inlet cover (404).
  5. 5. The high-current testing tool for the inductor according to claim 1, wherein the lifting assembly (500) comprises a first telescopic piece (501), the first telescopic piece (501) is fixedly installed at the top of the supporting frame (102), a fixing sleeve (502) is fixedly installed at one end of a telescopic rod of the first telescopic piece (501) penetrating through the supporting frame (102), a connecting frame (503) is fixedly connected to the fixing sleeve (502), and the detecting assembly (600) is fixedly installed at the bottom surface of the connecting frame (503).
  6. 6. The high-current testing tool for the inductor according to claim 1, wherein the detecting component (600) comprises a base (601), the base (601) is fixedly installed on the lifting component (500), a first installing cavity (602) is formed in the middle of the bottom of the base (601), at least two second installing cavities (603) are formed in the outer side of the first installing cavity (602) corresponding to pins of the inductor to be detected, a temperature sensor (604) connected with external detecting equipment is fixedly installed in the first installing cavity (602) corresponding to a shell of the inductor to be detected, an elastic piece (605) is connected between the temperature sensor (604) and the inner top surface of the first installing cavity (602) in an abutting mode, a group of probe arrays (606) connected with external detecting equipment are fixedly installed in the second installing cavity (603), and one group of the probe arrays (606) corresponds to one pin of the inductor to be detected.
  7. 7. The high-current testing tool for the inductor according to claim 6, wherein the probe array (606) comprises a transfer column (6061), four-wire Kelvin testing lines are integrated inside the transfer column (6061), a plurality of elastic conductive probes (6062) arranged in parallel are connected to the end portions of the transfer column (6061) in a conductive mode, the four-wire Kelvin testing lines comprise a current transmission branch (6063) and a voltage detection branch (6064), and the current transmission branch (6063) and the voltage detection branch (6064) are connected with external detection equipment.
  8. 8. The high-current testing tool for the inductor according to claim 1, wherein the clamping assembly (700) comprises a horizontally arranged sliding rail (701), the sliding rail (701) is fixedly arranged on the bottom surface of the top of the supporting frame (102), the sliding rail (701) is slidably connected with a sliding frame (702), the bottom surface of the top of the supporting frame (102) corresponds to the sliding frame (702) and is fixedly provided with a second telescopic member (703) arranged along the length direction of the sliding rail (701), the telescopic end of the second telescopic member (703) is fixedly connected with the sliding frame (702), the sliding frame (702) is fixedly provided with a third telescopic member (704) arranged vertically, and the telescopic end of the third telescopic member (704) is fixedly provided with a pneumatic finger (706).
  9. 9. A high-current testing tool for inductors is characterized in that the classification storage assembly (800) comprises a collection frame (801) fixedly installed on the operation platform (100), a first collection opening (802) and a second collection opening (803) are formed in the middle of the collection frame (801) corresponding to the clamping assembly (700), a first collection frame (804) and a second collection frame (805) which are detachable are installed at two ends of the collection frame (801) corresponding to the first collection opening (802) and the second collection opening (803) respectively, the first collection opening (802) is communicated with the first collection frame (804), and the second collection opening (803) is communicated with the second collection frame (805).
  10. 10. The high-current testing fixture for an inductor according to any one of claims 1 to 9, further comprising a controller electrically connected to said indexing rotation assembly (200), said cooling assembly (400), said lifting assembly (500), said gripping assembly (700) and an external detection device.

Description

A heavy current test fixture for inductor Technical Field The invention relates to the technical field of electrical performance testing, in particular to a high-current testing tool for an inductor. Background The inductor is used as a common passive device in an electronic circuit, and the electrical properties such as direct current resistance, inductance value, temperature rise characteristic and the like of the inductor under a high-current working condition directly influence the stability of the whole equipment, so that the high-current test is a key link in the production and detection of the inductor. At present, the traditional test depends on manual operation one by one, so that the efficiency is low, the detection of butt joint deviation is easy to cause due to errors of manual operation, the consistency of test data is affected, a large amount of heat can be rapidly generated by an inductor in the high-current test process, the existing cooling mode is mostly natural heat dissipation, the cooling efficiency is low and uneven, the performance of the inductor fluctuates after the temperature of the inductor rises, the test precision is further affected, and the device is damaged in severe cases. Therefore, how to improve the efficiency and accuracy of the high current test of the inductor and solve the problem of high temperature interference is a problem that needs to be solved by those skilled in the art. Disclosure of Invention The application provides a high-current testing tool for an inductor, which aims to solve the technical problems of poor testing efficiency, low precision and high-temperature interference in the existing high-current testing process of the inductor. The application provides a high-current test tool for an inductor, which adopts the following technical scheme: A high-current test fixture for an inductor comprises an operation platform, wherein an installation seat is fixedly installed on the operation platform, a support frame is fixedly installed on the installation seat, an indexing rotating assembly is fixedly installed on the operation platform and close to the support frame, a plurality of clamp assemblies which are uniformly distributed in a ring shape are fixedly arranged on the indexing rotating assembly, a cooling assembly is installed in the installation seat, a lifting assembly is fixedly installed on the support frame, the telescopic end of the lifting assembly is fixedly installed with a detection assembly corresponding to one clamp assembly, the cooling assembly is in sealing connection with the clamp assembly corresponding to the detection assembly, a clamping assembly is fixedly installed on the support frame corresponding to the other clamp assembly, the indexing rotating assembly drives the clamp assembly to rotate towards the clamping assembly from the detection assembly, and a classification storage assembly is fixedly installed on the installation seat corresponding to the clamping assembly. Further, the indexing rotary assembly comprises a power box fixedly installed on the operation platform, a driving motor is fixedly installed on the power box, an output shaft of the driving motor penetrates through one end of the inside of the power box and is connected with a worm shaft in a transmission mode, the worm shaft is rotationally connected inside the power box, a driving shaft is rotationally connected inside the power box, a worm wheel which is in meshed transmission with the worm shaft is fixedly connected on the driving shaft, a driving disc is fixedly connected with one end of the driving shaft penetrating through the outside of the power box, an indexing disc is fixedly connected on the driving disc, and the clamp assembly is fixedly installed on the indexing disc. Further, the fixture assembly comprises a fixture seat, a positioning groove matched with the shape of the clamping assembly when clamping the inductor to be tested is formed in the fixture seat, a heat dissipation box is fixedly and hermetically connected to the outer portion of the fixture seat, a heat dissipation cavity is formed between the inner wall of the heat dissipation box and the outer wall of the fixture seat, the heat dissipation box is fixedly mounted on the indexing rotating assembly, an air inlet pipe and an air outlet pipe which are communicated with the heat dissipation cavity are fixedly and hermetically connected to the side wall of the heat dissipation box, an air inlet pipe and an air outlet pipe are correspondingly arranged on the indexing rotating assembly, an air pipe mounting hole is formed in the air inlet pipe and the air outlet pipe, and the air pipe mounting hole can be in sealing connection with the cooling assembly. Further, the cooling assembly comprises a semiconductor refrigerating sheet, a first heat exchange fin is fixedly and thermally connected to the refrigerating end of the semiconductor refrigerating sheet, a second heat exchange fin is fixed