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CN-121977630-A - Universal testing device for miniature transformer

CN121977630ACN 121977630 ACN121977630 ACN 121977630ACN-121977630-A

Abstract

The invention relates to the technical field of transformer testing, in particular to a universal testing device for a miniature transformer. The invention provides a universal testing device for a miniature transformer, which can automatically replace pin groups and is more convenient to use. The utility model provides a general testing arrangement of miniature transformer, includes tester body, protection casing, fixedly connected with protection casing on the tester body, symmetrical fixedly connected with test joint on the tester body, in the test joint stretches into the protection casing, fixedly connected with horizontal pole in the protection casing. The miniature transformer is fixed on the sliding plate, the sliding plate is controlled by the electric guide rail to drive the miniature transformer to move backwards to contact with the test joint for testing, after the testing of one group of pins is completed, the sliding plate slides forwards to extrude the wedge-shaped block, so that the disc rotates, the guide frame slides leftwards through the matching of the U-shaped block and the butt joint plate, and the test joint is driven to move forwards to perform transposition, so that the test joint performs contact testing on the other group of pins.

Inventors

  • XIAO GUO
  • SUN JING

Assignees

  • 资兴市慧华电子有限公司

Dates

Publication Date
20260505
Application Date
20240111

Claims (10)

  1. 1. The utility model provides a general testing arrangement of miniature transformer, including tester body (1), protection casing (101), fixedly connected with protection casing (101) on tester body (1), symmetry fixedly connected with test joint (2) on tester body (1), test joint (2) stretch into in protection casing (101), fixedly connected with horizontal pole (201) in protection casing (101), sliding connection has guide frame (3) on horizontal pole (201), fixedly connected with first spring (202) between guide frame (3) and horizontal pole (201), guide frame (3) symmetry sliding connection has slide (4), slide (4) top is connected with adjacent test joint (2), characterized by, still include pivot (5), pivot (5) rotationally connect on tester body (1), sliding connection has disc (6) on pivot (5), fixedly connected with second spring (61) between disc (6) and pivot (5), fixedly connected with circumference equidistance U type piece (7) that distribute on disc (6), guide frame (3) are close to U type piece (7) one side fixedly connected with in the butt joint board (8) of U type piece (7) penetrate in the butt joint board (8), the tester comprises a tester body (1) and a disc (6), wherein a transposition assembly for controlling a U-shaped block (7) to rotate and drive a test joint (2) to transpose is arranged on the tester body (1), and a placement assembly for placing a miniature transformer is arranged on the tester body (1).
  2. 2. The universal testing device for the miniature transformer according to claim 1, wherein the transposition assembly comprises contact blocks (9), the contact blocks (9) distributed at equal intervals in the circumferential direction are fixedly connected to the disc (6), an L-shaped rod (10) is connected to the tester body (1) in a sliding mode, a third spring (11) is fixedly connected between the L-shaped rod (10) and the tester body (1), a wedge block (12) is fixedly connected to one side, close to the third spring (11), of the L-shaped rod (10), a pushing rod (13) is fixedly connected to one side, far away from the wedge block (12), of the L-shaped rod (10), and the pushing rod (13) is in extrusion fit with the contact blocks (9).
  3. 3. A universal testing device for miniature transformers according to claim 2, characterized in that the placement assembly comprises an electric guide rail (14), the electric guide rail (14) is fixedly connected to the tester body (1), a sliding plate (15) is connected to the electric guide rail (14) in a sliding manner, the sliding plate (15) is in press fit with the wedge block (12), and a fixing assembly for fixing the miniature transformer is arranged on the sliding plate (15).
  4. 4. A universal testing device for micro-transformers according to claim 3, characterized in that the sliding plate (15) is provided with square limiting grooves for placing the micro-transformers.
  5. 5. A universal testing device for miniature transformers according to claim 4, characterized in that the fixing assembly comprises clamping blocks (16), the clamping blocks (16) are symmetrically and slidably connected to the sliding plate (15), and a fourth spring (17) is connected between the clamping blocks (16) and the sliding plate (15).
  6. 6. A universal testing device for miniature transformers according to claim 5, characterized in that the sides of the clamping blocks (16) which are adjacent to each other at their top ends are inclined.
  7. 7. The universal testing device for the miniature transformer according to claim 6, further comprising a contact assembly for pushing the sliding plate (4) to drive the testing connector (2) to contact with pins of the miniature transformer, wherein the contact assembly is arranged on the guide frame (3), the contact assembly comprises a fifth spring (18), the fifth spring (18) is fixedly connected between the sliding plate (4) and the guide frame (3), sliding rods (19) are connected to two sides of the guide frame (3) in a sliding manner, a transverse plate (20) is fixedly connected between the sliding rods (19), the sliding plate (15) is in extrusion fit with the transverse plate (20), the transverse plate (20) is symmetrically and fixedly connected with an inclined plate (21), and the inclined plate (21) is in extrusion fit with the sliding plate (4).
  8. 8. The universal testing device for the miniature transformer according to claim 7, further comprising a supporting component for supporting pins of the miniature transformer, wherein the supporting component is arranged on the sliding plate (15), the supporting component comprises a mounting block (22), the mounting block (22) is fixedly connected to the sliding plate (15), a guide rod (23) is fixedly connected to the top end of the mounting block (22), supporting plates (24) distributed at equal intervals are slidingly connected to the guide rod (23), and a positioning component for positioning the supporting plates (24) is arranged on the guide rod (23).
  9. 9. A universal testing device for miniature transformers according to claim 8, characterized in that the positioning assembly comprises sliding rods (25), the sliding rods (25) are symmetrically and slidably connected to the guide rods (23), and limiting plates (26) are fixedly connected between the sliding rods (25).
  10. 10. The universal testing device for the miniature transformer according to claim 9, further comprising a pressing component for controlling the U-shaped block (7) to be separated from the butt plate (8), wherein the pressing component is arranged on the U-shaped block (7) and the tester body (1), the pressing component comprises a circular ring (27), the circular ring (27) is fixedly connected between the U-shaped blocks (7), the tester body (1) is fixedly connected with a guide block (28), a pressing rod (29) is slidingly connected in the guide block (28), a pressing wheel (30) is rotatably connected to one side, close to the circular ring (27), of the pressing rod (29), the pressing wheel (30) is in contact with the circular ring (27), and a sixth spring (31) is fixedly connected between the pressing rod (29) and the guide block (28).

Description

Universal testing device for miniature transformer Technical Field The invention relates to the technical field of transformer testing, in particular to a universal testing device for a miniature transformer. Background The transformer is a device for changing an ac voltage by using the principle of electromagnetic induction, and the main components are a primary coil, a secondary coil and an iron core. After the micro-transformer is assembled, various tests such as leakage inductance test, high voltage test, resistance test of the micro-transformer and the like are required. When resistance test is carried out, the contact probe of the tester is generally used for contacting pins of the transformer, the measured numerical value can be displayed on the tester, but the transformer is provided with a plurality of groups of pins, so that during test, a worker is required to hold the test contact probe to continuously switch the pin groups to realize the purpose of test, and the test mode is complex to operate and inconvenient to use. Therefore, we propose a miniature transformer universal testing device which can automatically replace pin groups and is more convenient to use. Disclosure of Invention In order to overcome the defect that the conventional test mode is complicated in operation, the invention provides the universal test device for the miniature transformer, which can automatically replace the pin group and is more convenient to use. The universal testing device for the miniature transformer comprises a tester body and a protective cover, wherein the tester body is fixedly connected with the protective cover, the tester body is symmetrically and fixedly connected with a testing joint, the testing joint stretches into the protective cover, a cross rod is fixedly connected in the protective cover, the cross rod is connected with a guide frame in a sliding mode, a first spring is fixedly connected between the guide frame and the cross rod, the guide frame is symmetrically and slidingly connected with a sliding plate, the top of the sliding plate is connected with an adjacent testing joint. Optionally, the transposition assembly comprises contact blocks, the contact blocks distributed at equal intervals in the circumferential direction are fixedly connected to the disc, an L-shaped rod is connected to the tester body in a sliding mode, a third spring is fixedly connected between the L-shaped rod and the tester body, a wedge block is fixedly connected to one side, close to the third spring, of the L-shaped rod, a pushing rod is fixedly connected to one side, far away from the wedge block, of the L-shaped rod, and the pushing rod is in extrusion fit with the contact blocks. Optionally, place the subassembly including electric guide rail, electric guide rail fixed connection is on the tester body, and sliding connection has the sliding plate on the electric guide rail, and sliding plate and wedge extrusion fit are equipped with the fixed subassembly that is used for fixed miniature transformer on the sliding plate. Optionally, a square limit groove for placing the micro-transformer is formed in the sliding plate. Optionally, the fixed subassembly includes the clamp splice, and the clamp splice symmetry slip is connected on the sliding plate, is connected with the fourth spring between clamp splice and the sliding plate. Optionally, the sides of the top ends of the clamping blocks, which are close to each other, are obliquely arranged. Optionally, the device further comprises a contact assembly for pushing the sliding plate to drive the test connector to contact with pins of the miniature transformer, the contact assembly is arranged on the guide frame and comprises a fifth spring, the fifth spring is fixedly connected between the sliding plate and the guide frame, sliding rods are connected to two sides of the guide frame in a sliding mode, a transverse plate is fixedly connected between the sliding rods, the sliding plate is in extrusion fit with the transverse plate, inclined plates are symmetrically and fixedly connected to the transverse plate, and the inclined plates are in extrusion fit with the sliding plate. Optionally, the miniature transformer stitch supporting device further comprises a supporting component for supporting miniature transformer stitches, the supporting component is arranged on the sliding plate and comprises a mounting block, the mounting block is fixedly connected to the sliding plate, the top end of the mounting block is fixedly connected with a guide rod, the guide rod is connected with supporting plates distributed at equal intervals in a sliding mode, and the guide rod is provided with a positioning component for positioning the supporting plates. Optionally, the positioning assembly comprises sliding rods, the sliding rods are symmetrically and slidably connected to the guide rods, and limiting plates are fixedly connected between the sliding rods. Optionally, the device fu