Resistor insulation performance testing device

Abstract

The utility model relates to the technical field of insulation performance testing, in particular to a resistor insulation performance testing device which comprises a testing box, a sealing cover, an insulation tester, a temperature control mechanism, a storage rack, a first contact, a connecting piece, a second contact and a linkage mechanism. The sealing cover is rotationally connected with the test box through a hinge; the insulation tester is arranged on one side of the test box; the temperature control mechanism is arranged in the test box and is used for controlling the temperature in the test box; the storage rack is arranged in the test box; the first contact is arranged in the test box, and the first contact is electrically connected with the insulation tester through a wire; the connecting piece is arranged in the test box, one end of the connecting piece is connected with the sealing cover, and the other end of the connecting piece is connected with the first contact; and the second contact is arranged in the test box. According to the utility model, through the arrangement of the temperature control mechanism, different working environment temperatures of the resistor can be simulated, and the insulativity of the resistor at different working environment temperatures can be detected.

Description

Technical Field

[0001] The utility model relates to the technical field of insulation performance testing, in particular to a resistor insulation performance testing device. Background Art

[0002] Resistors are often simply called resistors in everyday life. They are current-limiting components. When connected to a circuit, the resistor's resistance is fixed, typically consisting of two pins. They limit the current flowing through the connected circuit. Resistors with fixed resistance values are called fixed resistors. Resistors with variable resistance values are called potentiometers or variable resistors. Ideally, resistors are linear, meaning the instantaneous current flowing through them is proportional to the applied voltage. Variable resistors are used for voltage division. One or two movable metal contacts are pressed against the exposed resistor body.

[0003] Patent authorization announcement number CN211374936U discloses an insulation performance testing device, including a bottom mechanism, a top mechanism fixedly installed on the top of the bottom mechanism, a middle mechanism fixedly installed on the bottom of the top mechanism, a testing mechanism fixedly connected to the inside of the middle mechanism, a cylinder fixedly installed on the top of the top mechanism, and a product mold clamped on the bottom mechanism. The advantages of this utility model are: multiple products are placed on the product mold, and the product mold and the product are placed together in a positioning frame, and multiple products are tested at the same time, which improves the efficiency of the test, and the tested products are placed on the side away from the product to be tested, avoiding the hidden danger of missed tests. When testing the insulation performance of the product, the cylinder pushes the middle mechanism downward, the conductive block contacts the product, the spring is compressed, and the test rod slides upward, while ensuring that the conductive block contacts the product, the problem of the test mechanism crushing the product is avoided, thereby achieving the purpose of protecting the product.

[0004] However, the above technical solution has the following shortcomings: it can only test the insulation performance of the resistor at room temperature, but cannot test the insulation performance of the resistor at different working environment temperatures, resulting in greater detection limitations. Utility Model Content

[0005] The utility model aims to solve the problems existing in the background technology and propose a resistor insulation performance testing device.

[0006] The technical solution of the utility model is: a resistor insulation performance testing device, comprising:

[0007] test box;

[0008] A sealing cover, which is rotatably connected to the test box via a hinge;

[0009] An insulation tester is provided on one side of the test box;

[0010] A temperature control mechanism is provided in the test chamber and is used to control the temperature in the test chamber;

[0011] A storage rack, which is arranged in the test box;

[0012] A first contact is provided inside the test box and is electrically connected to the insulation tester via a wire;

[0013] A connector is disposed in the test box, one end of the connector is connected to the sealing cover, and the other end of the connector is connected to the first contact;

[0014] a second contact disposed in the test box, the second contact being electrically connected to the insulation tester via a wire;

[0015] The linkage mechanism is arranged in the test box, one end of the linkage mechanism is movably connected to the sealing cover, and the other end of the linkage mechanism is connected to the second contact.

[0016] Preferably, a handle is provided on the top of the sealing cover, and a limiting member is provided between the sealing cover and the test box.

[0017] Preferably, the temperature control mechanism includes a heater and a thermometer, the heater is located on one side of the bottom of the inner wall of the test box, and the thermometer is located on the other side of the bottom of the test box.

[0018] Preferably, the connecting member includes an adjusting screw rod, an adjusting plate, a guide plate and an elastic member;

[0019] The adjusting screw is threadedly connected to the sealing cover, and one end of the adjusting screw passes through the sealing cover and extends into the test box;

[0020] The adjustment plate is located in the test box, and the adjustment plate is rotatably connected to the adjustment screw;

[0021] Two guide plates are provided, both of which are connected to the sealing cover, and the adjustment plate is slidably connected to the guide plates;

[0022] One end of the elastic member is connected to the adjustment plate, and the other end of the elastic member is connected to the first contact point.

[0023] Preferably, the linkage mechanism includes a slider, a rack plate, a bidirectional threaded rod, a gear, a threaded sleeve and a limit plate;

[0024] The slider is slidably connected to the sealing cover;

[0025] One end of the rack plate is rotatably connected to the slider, and the rack plate is slidably connected to the test box;

[0026] The bidirectional threaded rod is rotatably connected to the test box;

[0027] The gear is connected to the bidirectional threaded rod, and the gear and the rack plate are meshed with each other;

[0028] There are two threaded sleeves, both of which are threadedly connected to the bidirectional threaded rod;

[0029] Two limiting plates are provided, the two limiting plates are connected to the two threaded sleeves respectively, and the limiting plates are connected to the second contact point.

[0030] Preferably, it further comprises a support plate, the support plate is connected to the test box, and the two limit plates are both slidably connected to the support plate.

[0031] Compared with the prior art, the above technical solution of the present invention has the following beneficial technical effects:

[0032] The temperature control mechanism in this utility model can simulate different operating environment temperatures of the resistor and test the insulation performance of the resistor under different operating environment temperatures. The connection parts and linkage mechanism are arranged in a coordinated manner. Only the first contact and the second contact need to be placed on the storage rack and closed after the sealing door to effectively contact the resistor, making the test operation convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A perspective view of an embodiment of the present invention;

[0034] Figure 2 This is a cross-sectional view of a test box in an embodiment of the present invention;

[0035] Figure 3 This is a three-dimensional diagram of a connecting member in an embodiment of the present invention;

[0036] Figure 4 This is a three-dimensional diagram of a linkage mechanism in an embodiment of the present invention.

[0037] Figure numerals: 1. test box; 2. sealing cover; 3. insulation tester; 4. temperature control mechanism; 41. heater; 42. thermometer; 5. connector; 51. adjusting screw; 52. adjusting plate; 53. guide plate; 54. elastic member; 6. linkage mechanism; 61. slider; 62. rack plate; 63. bidirectional threaded rod; 64. gear; 65. threaded sleeve; 66. limit plate; 67. support plate; 7. storage rack; 8. first contact; 9. second contact; 10. handle; 11. limit member. DETAILED DESCRIPTION

[0038] Example 1

[0039] like Figure 1-4 As shown, the present invention proposes a resistor insulation performance test device, comprising a test box 1, a sealing cover 2, an insulation tester 3, a temperature control mechanism 4, a storage rack 7, a first contact 8, a connector 5, a second contact 9 and a linkage mechanism 6;

[0040] The sealing cover 2 is rotatably connected to the top of the test box 1 through a hinge. A handle 10 is provided on the top of the sealing cover 2. A limit member 11 is provided between the sealing cover 2 and the test box 1.

[0041] The insulation tester 3 is arranged on one side of the test box 1;

[0042] A temperature control mechanism 4 is disposed within the test chamber 1 and is used to control the temperature within the test chamber 1. The temperature control mechanism 4 includes a heater 41 and a thermometer 42. The heater 41 is an electric heater and is electrically connected to a power supply and a control system via a wire. Both the heater 41 and the thermometer 42 are electrically connected to the insulation tester 3 via a wire. The heater 41 is located on one side of the bottom of the inner wall of the test chamber 1, and the thermometer 42 is located on the other side of the bottom of the test chamber 1.

[0043] The storage rack 7 is arranged at the bottom of the inner wall of the test box 1;

[0044] The first contact 8 is provided inside the test box 1 and is electrically connected to the insulation tester 3 via a wire;

[0045] The connector 5 is disposed in the test box 1 , one end of the connector 5 is connected to the sealing cover 2 , and the other end of the connector 5 is connected to the first contact 8 ;

[0046] The second contact 9 is provided in the test box 1 and is electrically connected to the insulation tester 3 via a wire;

[0047] The linkage mechanism 6 is disposed in the test box 1 , one end of the linkage mechanism 6 is movably connected to the sealing cover 2 , and the other end of the linkage mechanism 6 is connected to the second contact 9 .

[0048] Example 2

[0049] like Figure 1-3 As shown, the present invention proposes a resistor insulation performance test device. Compared with the first embodiment, this embodiment further specifically discloses the structure of the connecting member 5. The connecting member 5 includes an adjusting screw 51, an adjusting plate 52, a guide plate 53 and an elastic member 54.

[0050] The adjusting screw rod 51 is threadedly connected to the sealing cover 2. One end of the adjusting screw rod 51 passes through the sealing cover 2 and extends into the test box 1. The end of the adjusting screw rod 51 located outside the test box 1 is fixedly connected to the adjusting hand wheel.

[0051] The adjustment plate 52 is located in the test box 1 and is rotatably connected to the adjustment screw 51;

[0052] There are two guide plates 53, both of which are fixedly connected to the sealing cover 2, and the adjustment plate 52 is slidably connected to the guide plates 53;

[0053] One end of the elastic member 54 is fixedly connected to the adjustment plate 52 , and the other end of the elastic member 54 is fixedly connected to the first contact 8 .

[0054] Example 3

[0055] like Figure 2-4 As shown, the present invention proposes a resistor insulation performance test device. Compared with the second embodiment, this embodiment further specifically discloses the structure of the linkage mechanism 6. The linkage mechanism 6 includes a slider 61, a rack plate 62, a bidirectional threaded rod 63, a gear 64, a threaded sleeve 65 and a limit plate 66.

[0056] The slider 61 is slidably connected to the sealing cover 2;

[0057] One end of the rack plate 62 is rotatably connected to the slider 61, and the rack plate 62 is slidably connected to the side of the inner wall of the test box 1;

[0058] Both ends of the bidirectional threaded rod 63 are rotatably connected to the inner wall of the test box 1;

[0059] The gear 64 is fixedly connected to the bidirectional threaded rod 63, and the gear 64 and the rack plate 62 are meshed with each other;

[0060] There are two threaded sleeves 65 , both of which are threadedly connected to the bidirectional threaded rod 63 ;

[0061] Two limiting plates 66 are provided. The two limiting plates 66 are fixedly connected to the two threaded sleeves 65 respectively, and the limiting plates 66 are fixedly connected to the second contact 9 .

[0062] In an optional embodiment, a support plate 67 is further included. The support plate 67 is fixedly connected to the inner wall of the test box 1 , and the two limiting plates 66 are both slidably connected to the support plate 67 .

[0063] The resistor to be tested is placed on the storage rack 7 of the test box 1, and the sealing cover 2 is closed. During the closing process of the sealing cover 2, the sealing cover 2 pushes the rack plate 62 to move. The movement of the rack plate 62 drives the gear 64 and the bidirectional threaded rod 63 to rotate together through the meshing action. The bidirectional threaded rod 63 rotates through the threaded sleeve 65 and the limit plate 66, and the second contact 9 moves to contact the connection point of the resistor. After closing the sealing door, the first contact 8 contacts the surface of the resistor under the drive of the adjusting screw 51, the adjusting plate 52 and the elastic member 54, forming an insulation test circuit. The heater 41 is turned on to heat the inside of the test box 1 to simulate different working environment temperatures of the resistor, test the insulation of the resistor at different temperatures, and measure the temperature inside the test box 1 using the thermometer 42.

[0064] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A resistor insulation performance test device, characterized in that: include: Test box (1); A sealing cover (2) rotatably connected to the test box (1) via a hinge; An insulation tester (3) is arranged on one side of the test box (1); A temperature control mechanism (4) is provided in the test box (1), and the temperature control mechanism (4) is used to control the temperature in the test box (1); A storage rack (7) is arranged in the test box (1); A first contact (8) is arranged inside the test box (1), and the first contact (8) is electrically connected to the insulation tester (3) via a wire; A connector (5) is disposed in the test box (1), one end of the connector (5) is connected to the sealing cover (2), and the other end of the connector (5) is connected to the first contact (8); A second contact (9) is disposed in the test box (1), and the second contact (9) is electrically connected to the insulation tester (3) via a wire; A linkage mechanism (6) is provided in the test box (1), one end of the linkage mechanism (6) is movably connected to the sealing cover (2), and the other end of the linkage mechanism (6) is connected to the second contact (9).

2. A resistor insulation performance testing device according to claim 1, characterized in that: A handle (10) is provided on the top of the sealing cover (2), and a limiting member (11) is provided between the sealing cover (2) and the test box (1).

3. A resistor insulation performance testing device according to claim 1, characterized in that: The temperature control mechanism (4) comprises a heater (41) and a thermometer (42), wherein the heater (41) is located on one side of the bottom of the inner wall of the test box (1), and the thermometer (42) is located on the other side of the bottom of the test box (1).

4. A resistor insulation performance testing device according to claim 1, characterized in that: The connecting member (5) includes an adjusting screw rod (51), an adjusting plate (52), a guide plate (53) and an elastic member (54); The adjusting screw rod (51) is threadedly connected to the sealing cover (2), and one end of the adjusting screw rod (51) passes through the sealing cover (2) and extends into the test box (1); The adjusting plate (52) is located in the test box (1), and the adjusting plate (52) is rotatably connected to the adjusting screw rod (51); Two guide plates (53) are provided, both guide plates (53) are connected to the sealing cover (2), and the adjustment plate (52) is slidably connected to the guide plates (53); One end of the elastic member (54) is connected to the adjustment plate (52), and the other end of the elastic member (54) is connected to the first contact point (8).

5. A resistor insulation performance testing device according to claim 1, characterized in that: The linkage mechanism (6) includes a slider (61), a rack plate (62), a bidirectional threaded rod (63), a gear (64), a threaded sleeve (65) and a limit plate (66); The slider (61) is slidably connected to the sealing cover (2); One end of the rack plate (62) is rotatably connected to the slider (61), and the rack plate (62) is slidably connected to the test box (1); The bidirectional threaded rod (63) is rotatably connected to the test box (1); The gear (64) is connected to the bidirectional threaded rod (63), and the gear (64) and the rack plate (62) are meshed with each other; Two threaded sleeves (65) are provided, and both threaded sleeves (65) are threadedly connected to the bidirectional threaded rod (63); Two limiting plates (66) are provided, and the two limiting plates (66) are respectively connected to the two threaded sleeves (65), and the limiting plates (66) are connected to the second contact (9).

6. A resistor insulation performance testing device according to claim 5, characterized in that: It also includes a support plate (67), the support plate (67) is connected to the test box (1), and the two limit plates (66) are both slidably connected to the support plate (67).

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