CN219641777U - Insulated Gate Bipolar Transistor (IGBT) insulation testing device - Google Patents
Insulated Gate Bipolar Transistor (IGBT) insulation testing device Download PDFInfo
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- CN219641777U CN219641777U CN202320901172.0U CN202320901172U CN219641777U CN 219641777 U CN219641777 U CN 219641777U CN 202320901172 U CN202320901172 U CN 202320901172U CN 219641777 U CN219641777 U CN 219641777U
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- 238000012360 testing method Methods 0.000 title claims abstract description 55
- 238000009413 insulation Methods 0.000 title claims abstract description 25
- 238000007789 sealing Methods 0.000 claims description 20
- 238000004804 winding Methods 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 230000006978 adaptation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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Abstract
The utility model provides an IGBT insulation test device. The novel box comprises a box body and a box cover, wherein the box cover is rotationally fixed above the side of the box body, a display screen is fixed on the inner side of the box cover, and the box cover is opened and closed and fixed with the box body through a lock catch. According to the IGBT insulation testing device provided by the utility model, the display screen, the equipment cabin and the wires of the testing device are all positioned in the box body, so that effective protection is obtained, the service life of the testing device is prolonged, the display screen is fixed on the inner side of the box cover, the display screen is not easy to collide when the testing device is carried, the service life of the display screen is prolonged, the wires are wound in the box body through the wire coil, the convenience of wire storage is improved, the problem of easy disorder of the wires is solved, the wire coil is rotationally reset through the spring and is fixed in a limiting way by being matched with the fixing mechanism, and the wires can be automatically retracted after being used, so that the convenience of the device is improved.
Description
Technical Field
The utility model relates to the technical field of electrical testing, in particular to an Insulated Gate Bipolar Transistor (IGBT) insulation testing device.
Background
In recent years, along with the continuous promotion of clean energy construction in China, high-power IGBT and FRD power semiconductor devices are increasingly widely used in power electronic equipment and power conversion, and accordingly quality detection problems of high-capacity IGBT modules of various specifications are also increasingly prominent, and at present, technicians are required to test various parameters of the components through corresponding detection devices so as to ensure normal operation of the components.
At present, the test items comprise resistor insulation tests, an insulation test device transmits current into equipment through a conducting wire through a conducting head, and data are displayed through a display screen.
Accordingly, it is necessary to provide an IGBT insulation test device that solves the above-mentioned technical problems.
Disclosure of Invention
The utility model provides an Insulated Gate Bipolar Transistor (IGBT) insulation testing device, which solves the problems that the conventional insulation testing device is troublesome in wire arrangement and the device is easy to collide and damage.
In order to solve the technical problems, the IGBT insulation testing device comprises a box body and a box cover, wherein the box cover is rotationally fixed above the side of the box body, a display screen is fixed on the inner side of the box cover, the box cover and the box body are fixedly opened and closed through a lock catch, an equipment cabin is fixed in the box body, the equipment cabin is electrically connected with the display screen, a wire coil is rotationally fixed at the bottom end in the box body, a wire is wound on the surface of the wire coil, a limiting plate is fixed on the upper side of the wire coil, a connecting block is connected to the movable end of the wire coil, a sealing cover is fixed on the side surface of the connecting block, and the sealing cover is positioned on the outer side of the box body.
Preferably, a clockwork spring is fixed at the bottom of the wire coil, and a fixing mechanism is arranged at the right side of the wire coil corresponding to the inside of the box body.
Preferably, the fixing mechanism comprises a frame, a pull rod, a clamping block and a spring, wherein the frame is fixed in the box body, the pull rod is slidably fixed in the frame and the inner end of the pull rod is fixedly connected with the clamping block, the spring is sleeved on the outer side of the pull rod, two ends of the spring are respectively fixed on the inner side of the clamping block and the inner wall of the frame, and clamping grooves matched with the size of the clamping block are uniformly formed in the surface of the wire coil.
Preferably, the front end of the clamping block is arranged to be trapezoid, and the surface clamping grooves of the wire coil are arranged to be zigzag and distributed in a circumferential array.
Preferably, the connecting block is in threaded connection with the sealing cover, and a sealing ring is arranged on the outer side of the sealing cover.
Preferably, be threaded connection between connecting block and the accredited testing organization, accredited testing organization includes sleeve, conductive block, connecting wire and plug, the screw thread groove with connecting block surface screw thread looks adaptation has been seted up to telescopic inner wall, conductive block is fixed in telescopic inside and links to each other with the connecting block electricity, the plug passes through the connecting wire to be connected in telescopic outside.
Compared with the related art, the IGBT insulation test device provided by the utility model has the following structure
The beneficial effects are that:
according to the IGBT insulation testing device provided by the utility model, the display screen, the equipment cabin and the wires of the testing device are all positioned in the box body, so that effective protection is obtained, the service life of the testing device is prolonged, the display screen is fixed on the inner side of the box cover, the display screen is not easy to collide when the testing device is carried, the service life of the display screen is prolonged, the wires are wound in the box body through the wire coil, the convenience of wire storage is improved, the problem of easy disorder of the wires is solved, the wire coil is rotationally reset through the spring and is fixed in a limiting way by being matched with the fixing mechanism, and the wires can be automatically retracted after being used, so that the convenience of the device is improved.
Drawings
FIG. 1 is a schematic diagram of an IGBT insulation testing device according to a preferred embodiment of the present utility model;
fig. 2 is a schematic view of the internal structure of the case shown in fig. 1;
FIG. 3 is a schematic view of the internal structure of the fixing mechanism shown in FIG. 2;
fig. 4 is a schematic cross-sectional view of the connecting structure of the connector shown in fig. 1.
Reference numerals in the drawings: 1. a case body; 2. a box cover; 3. a display screen; 4. locking; 5. an equipment compartment; 6. wire coil; 7. a wire; 8. a limiting plate; 9. a connecting block; 10. sealing cover; 11. a fixing mechanism; 111. a frame; 112. a pull rod; 113. a clamping block; 114. a spring; 12. a testing mechanism; 121. a sleeve; 122. a conductive block; 123. a connecting wire; 124. a plug.
Detailed Description
The utility model will be further described with reference to the drawings and embodiments.
Please refer to fig. 1-4 in combination. The utility model provides an IGBT insulation test device, including box body 1 and lid 2, lid 2 rotation is fixed in the side top of box body 1, the inboard of lid 2 is fixed with display screen 3, carry out the switching through hasp 4 between lid 2 and the box body 1 and fix, the inside of box body 1 is fixed with equipment compartment 5, the electrical property links to each other between equipment compartment 5 and the display screen 3, the inside bottom rotation of box body 1 is fixed with drum 6, the surface winding of drum 6 has wire 7, the upside of drum 6 is fixed with limiting plate 8, wire 7's movable end is connected with connecting block 9, connecting block 9's side is fixed with sealed lid 10, sealed lid 10 is located the outside of box body 1, through being provided with box body 1 and lid 2, this testing arrangement's display screen 3, equipment compartment 5 and wire 7 all are located the inside of box body 1, thereby obtain effective protection, improve this testing arrangement's life, the display screen 3 is fixed in the inboard of lid 2, this setting can make this device display screen 3 be difficult for taking place the collision when carrying, thereby improve the life of display screen 3, wire 7 is through 6, can be disturbed in this wire 7 setting up of drum 7, the inside of box body 1, the problem of wire 7 has been solved conveniently.
The bottom of drum 6 is fixed with clockwork spring, and drum 6's right side corresponds the internally mounted of box body 1 and has fixed establishment 11, and through setting up clockwork spring and rotatory reset and cooperation fixed establishment 11 spacing fixed to drum 6, this setting can make wire 7 can withdraw automatically after using, improves the convenience that the device used.
The fixing mechanism 11 comprises a frame 111, a pull rod 112, a clamping block 113 and a spring 114, wherein the frame 111 is fixed in the box body 1, the pull rod 112 is slidably fixed in the frame 111, the inner end of the pull rod 112 is fixedly connected with the clamping block 113, the spring 114 is sleeved on the outer side of the pull rod 112, two ends of the spring 114 are respectively fixed on the inner side of the clamping block 113 and the inner wall of the frame 111, clamping grooves matched with the clamping block 113 in size are uniformly formed in the surface of the wire coil 6, the clamping block 113 of the fixing mechanism 11 is clamped into the clamping grooves of the wire coil 6 through the elasticity of the spring 114 to realize limit fixation of the wire coil 6, and the wire 7 can be retracted only by pulling the pull rod 112, so that the device is simpler and more convenient to use.
The front end of the clamping block 113 is arranged in a trapezoid shape, the surface clamping grooves of the wire coil 6 are arranged in a zigzag shape and distributed in a circumferential array, and the trapezoid arrangement of the front end of the clamping block 113 can enable the wire 7 to be pulled out without pulling the pull rod 112.
The connecting block 9 is in threaded connection with the sealing cover 10, a sealing ring is arranged on the outer side of the sealing cover 10, the sealing cover 10 and the connecting block 9 are fixed through threaded connection to enable the sealing cover to be detachable, and the sealing ring can be tightly attached to the outer wall of the box body 1 when the sealing cover 10 is retracted, so that sealing is achieved.
Be threaded connection between connecting block 9 and the testing mechanism 12, testing mechanism 12 includes sleeve 121, conductive block 122, connecting wire 123 and plug 124, the screw thread groove with connecting block 9 surface screw thread looks adaptation has been seted up to the inner wall of sleeve 121, conductive block 122 is fixed in sleeve 121's inside and links to each other with the connecting block 9 electricity, plug 124 passes through connecting wire 123 to be connected in sleeve 121's outside, be threaded connection between connecting block 9 and the testing mechanism 12, testing mechanism 12 can be detached from connecting block 9 surface after using and deposit alone, this setting can prevent that testing mechanism 12's plug 124 from taking place to warp because of the extrusion when carrying, thereby improve testing mechanism 12's life.
The working principle of the IGBT insulation testing device provided by the utility model is as follows:
the first step: when the device is used, firstly, the lock catch 4 is opened to open the box cover 2, then the sealing cover 10 on the side face of the box body 1 is pulled outwards and rotated to be taken down, then the testing mechanism 12 is taken out from the inside of the box body 1 and is fixed on the outer side of the connecting block 9 in a rotating mode, then the lead 7 can be pulled outwards until the lead is pulled to a proper testing length, at the moment, the clamping block 113 in the fixing mechanism 11 is clamped into the clamping groove on the side face of the wire coil 6 under the elasticity of the spring 114, so that the wire coil 6 is limited and fixed, and then the equipment cabin 5 is controlled according to the display screen 3 on the inner side of the box cover 2 to perform insulation testing.
And a second step of: after the insulation test is finished, the test mechanism 12 is taken down from the outer side of the connecting block 9 and put into the box body 1, the sealing cover 10 is fixed on the outer side of the connecting block 9, then the pull rod 112 of the fixing mechanism 11 is pulled to pull the clamping block 113 out of the clamping groove on the side face of the wire coil 6, at the moment, the wire coil 6 rotates under the action of the spring to reset to retract the wire 7, and the sealing cover 10 is clamped into the groove on the side face of the box body 1 to seal the box body 1 while the wire 7 is retracted.
Compared with the related art, the IGBT insulation testing device provided by the utility model has the following beneficial effects: the display screen 3, the equipment cabin 5 and the wires 7 of the testing device are all positioned in the box body 1, so that effective protection is obtained, the service life of the testing device is prolonged, the display screen 3 is fixed on the inner side of the box cover 2, the display screen 3 is not easy to collide when the testing device is carried, the service life of the display screen 3 is prolonged, the wires 7 are wound in the box body 1 through the wire coil 6, convenience of accommodating the wires 7 is improved, the problem that the wires 7 are easy to disorder is solved, the wire coil 6 is rotated and reset through the spring and is fixed in a limiting mode through the cooperation of the fixing mechanism 11, the wires 7 can be automatically retracted after the use of the testing device is completed, and the convenience of the use of the testing device is improved.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (6)
1. The utility model provides an IGBT insulation test device, includes box body (1) and lid (2), its characterized in that: lid (2) rotation is fixed in the side top of box body (1), the inboard of lid (2) is fixed with display screen (3), it is fixed to open and close through hasp (4) between lid (2) and the box body (1), the inside of box body (1) is fixed with equipment compartment (5), electric connection between equipment compartment (5) and the display screen (3), the inside bottom rotation of box body (1) is fixed with drum (6), the surface winding of drum (6) has wire (7), the upside of drum (6) is fixed with limiting plate (8), the expansion end of wire (7) is connected with connecting block (9), the side of connecting block (9) is fixed with sealed lid (10), sealed lid (10) are located the outside of box body (1).
2. The Insulated Gate Bipolar Transistor (IGBT) insulation testing device according to claim 1, wherein a clockwork spring is fixed at the bottom of the wire coil (6), and a fixing mechanism (11) is installed in the right side of the wire coil (6) corresponding to the box body (1).
3. The IGBT insulation test device according to claim 2, characterized in that the fixing mechanism (11) comprises a frame (111), a pull rod (112), a clamping block (113) and a spring (114), the frame (111) is fixed in the box body (1), the pull rod (112) is slidably fixed in the frame (111) and the inner end is fixedly connected with the clamping block (113), the spring (114) is sleeved outside the pull rod (112), both ends of the spring (114) are respectively fixed in the inner side of the clamping block (113) and the inner wall of the frame (111), and clamping grooves matched with the clamping block (113) in size are uniformly formed in the surface of the wire coil (6).
4. An IGBT insulation test device according to claim 3, characterized in that the front end of the clamping block (113) is arranged in a trapezoid, and the surface clamping grooves of the wire coil (6) are arranged in a zigzag shape and distributed in a circumferential array.
5. The IGBT insulation test device according to claim 1, wherein the connecting block (9) is in threaded connection with the sealing cover (10), and a sealing ring is arranged on the outer side of the sealing cover (10).
6. The IGBT insulation test device according to claim 1, characterized in that the connection block (9) is in threaded connection with the test mechanism (12), the test mechanism (12) includes a sleeve (121), a conductive block (122), a connection wire (123) and a plug (124), a thread groove adapted to the surface thread of the connection block (9) is provided on the inner wall of the sleeve (121), the conductive block (122) is fixed in the sleeve (121) and electrically connected with the connection block (9), and the plug (124) is connected to the outer side of the sleeve (121) through the connection wire (123).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320901172.0U CN219641777U (en) | 2023-04-20 | 2023-04-20 | Insulated Gate Bipolar Transistor (IGBT) insulation testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320901172.0U CN219641777U (en) | 2023-04-20 | 2023-04-20 | Insulated Gate Bipolar Transistor (IGBT) insulation testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219641777U true CN219641777U (en) | 2023-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320901172.0U Active CN219641777U (en) | 2023-04-20 | 2023-04-20 | Insulated Gate Bipolar Transistor (IGBT) insulation testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219641777U (en) |
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2023
- 2023-04-20 CN CN202320901172.0U patent/CN219641777U/en active Active
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