CN220671615U - Frequency conversion mutual inductor tester - Google Patents
Frequency conversion mutual inductor tester Download PDFInfo
- Publication number
- CN220671615U CN220671615U CN202322032092.9U CN202322032092U CN220671615U CN 220671615 U CN220671615 U CN 220671615U CN 202322032092 U CN202322032092 U CN 202322032092U CN 220671615 U CN220671615 U CN 220671615U
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- heat dissipation
- protection
- variable frequency
- frequency transformer
- moving
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- 238000006243 chemical reaction Methods 0.000 title claims description 5
- 230000017525 heat dissipation Effects 0.000 claims abstract description 52
- 230000004224 protection Effects 0.000 claims abstract description 40
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 230000001681 protective effect Effects 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 4
- 238000007639 printing Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 abstract description 21
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009979 protective mechanism Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model relates to a variable frequency transformer tester which comprises a body, a heat dissipation cavity, a fan and a protection mechanism, wherein when the tester is in daily rest, a heat dissipation hole can be blocked and protected through a protection door, so that external dust and moisture can be reduced from penetrating into the body to influence the normal use and service life of internal devices, when heat dissipation is required, two protection doors are automatically separated through a moving assembly, internal heat can be blown out from the heat dissipation hole through the fan, the whole process does not need manpower interference, the automation degree is high, the defects caused by heat dissipation Kong Changkai can be avoided, the service life of the tester is facilitated, when the protection doors are required to move, a motor drives a screw rod to rotate, a moving block can perform stable and rapid displacement, and the structure can improve the moving stability and efficiency of the protection doors to improve the use smoothness and convenience of the device.
Description
Technical Field
The utility model relates to the technical field of variable frequency transformer testing equipment, in particular to a variable frequency transformer tester.
Background
The variable frequency transformer tester is a device for measuring transformer parameters in a variable frequency motor. A transformer is an electrical component for measuring current and voltage. In variable frequency motor systems, transformers are used to measure the current of the motor in order to control the speed and torque of the motor.
The current chinese patent with publication number CN218995652U discloses a comprehensive tester for variable frequency transformers, which comprises a housing and a vent hole, wherein the upper end of the interior of the housing is provided with a miniature motor, and the middle part of the lower end of the miniature motor is provided with a fan blade, in the use process, the heat generated in the device can be rapidly emitted, which is favorable for the user to obtain accurate measurement results, and the condition mode of short circuit of a working circuit caused by dust interference can be avoided when the terminal is connected, meanwhile, the normal work of the external dust entering the device to interfere with the internal precise electronic element is avoided, and the fluency of the test process is ensured.
Based on the above-mentioned circumstances, the inventors believe that, in the above-mentioned structure, although the vent hole is provided with the dust screen to protect dust and ash during use, but because the vent hole is kept in a normally open state, the dust screen has a limited protection effect on dust and ash, when encountering dust and ash particles finer than the net mouth, the protection effect is greatly reduced, and meanwhile, the dust screen is provided with the dust screen to easily cause dust to block the net mouth to influence the heat dissipation quality, and meanwhile, when the instrument is idle, dust and moisture still can infiltrate into the instrument through the vent hole to influence the service life of internal devices.
Therefore, the inventor proposes an improved variable frequency transformer tester.
Disclosure of Invention
Based on the above description, the utility model provides a frequency conversion transformer tester, which aims to solve the technical problems that a ventilation hole is kept in a normally open state, the protection effect of a dust screen on dust is limited, when dust particles finer than a net opening are encountered, the protection effect is greatly reduced, the net opening is blocked by dust easily due to the arrangement of the dust screen, the heat dissipation quality is influenced, and meanwhile, dust or moisture can still permeate into the instrument through the ventilation opening to influence the service life of internal devices when the instrument is idle.
The technical scheme for solving the technical problems is as follows: a frequency conversion transformer tester comprises a body, a heat dissipation cavity, a fan and a protection mechanism;
the front side of the body is provided with a voltage measurement module and a power supply output module, and the left side and the right side of the body are provided with heat dissipation holes;
the heat dissipation cavity is arranged at the left part and the right part of the body, the heat dissipation cavity is communicated with the inside of the body and the heat dissipation holes, the fan is arranged in the heat dissipation cavity, and the protection mechanism is arranged at one side of the heat dissipation cavity close to the heat dissipation holes so as to flexibly open and close the heat dissipation holes;
the protection mechanism comprises a protection door, guide rails, a moving assembly and a driving assembly, wherein the protection door is provided with two parts, the upper part and the lower part of the protection door are respectively provided with the guide rails, the two parts of the protection door are mutually close to or far away from each other along the guide rails, one end of the moving assembly is fixed with the protection door so as to drive the protection door to move, and the other end of the moving assembly is connected with the driving assembly.
On the basis of the technical scheme, the utility model can be improved as follows.
Further, the movable assembly comprises a supporting column, a rotating frame and a movable block, wherein the supporting column is fixedly arranged on one side of the far discrete heat hole of the protective door, the top of the rotating frame is rotationally connected with the supporting column, and the bottom of the rotating frame is rotationally arranged on the movable block.
Further, the rotating frame is symmetrically provided with two positions on the moving block.
Further, the movable block is internally provided with a thread groove, the driving assembly comprises a screw rod, a motor and a coupler, the movable block is in threaded connection with the screw rod through the thread groove, and an output shaft of the motor is fixed with the screw rod through the coupler.
Further, the bottom of the motor is fixed with the heat dissipation cavity.
Further, the outside of the protective door is mutually attached to the radiating holes, and the adjacent surfaces of the two protective doors are provided with elastic sealing layers.
Further, the front side of the body is also provided with a display screen, a parameter adjusting button and a printing component, and the right side of the body is also provided with a power input module.
Compared with the prior art, the technical scheme of the application has the following beneficial technical effects:
when the instrument is in daily idle, the heat dissipation holes can be blocked and protected through the protective door, so that external dust and moisture can be reduced to permeate into the body, normal use and service life of internal devices are influenced, when heat dissipation is needed, the two protective doors are automatically separated through the movable assembly, internal heat can be blown out from the heat dissipation holes through the fan, manual interference is not needed in the whole process, the degree of automation is high, defects caused by heat dissipation Kong Changkai can be avoided, and the service life of the instrument is protected;
in addition, when needing the guard gate to remove, drive the lead screw by the motor and rotate for the movable block can stabilize swift displacement, carries out synchronous even hand to two guard gates through the revolving rack in, and this structure can improve guard gate's removal stability and efficiency, in order to improve smoothness nature and the convenience that the device used.
Drawings
Fig. 1 is a schematic structural diagram of a variable frequency transformer tester according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of the structure of the heat dissipation chamber according to an embodiment of the present utility model;
FIG. 3 is a schematic structural view of a protection mechanism according to an embodiment of the present utility model;
in the drawings, the list of components represented by the various numbers is as follows:
1. a body; 2. a heat dissipation cavity; 3. a blower; 4. a protective mechanism; 11. a voltage measurement module; 12. a power output module; 13. a heat radiation hole; 14. a display screen; 15. parameter tuning buttons; 16. a printing component; 17. a power input module; 41. a protective door; 42. a guide rail; 43. a moving assembly; 44. a drive assembly; 431. a strut; 432. a rotating frame; 433. a moving block; 441. a screw rod; 442. a motor; 443. a coupling; 411. and an elastic sealing layer.
Detailed Description
In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Examples of the present application are given in the accompanying drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
It will be understood that spatially relative terms, such as "under", "below", "beneath", "under", "above", "over" and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use and operation in addition to the orientation depicted in the figures.
As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," and/or the like, specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.
The embodiment of the utility model specifically provides a variable frequency transformer tester, referring to fig. 1, which comprises a body 1, a heat dissipation cavity 2, a fan 3 and a protection mechanism 4;
the front side of the body 1 is provided with a voltage measuring module 11 and a power output module 12, the left side and the right side of the body 1 are provided with radiating holes 13, the front side of the body 1 is also provided with a display screen 14, a parameter adjusting button 15 and a printing assembly 16, and the right side of the body 1 is also provided with a power input module 17;
the main body 1 can functionally meet the test requirements of excitation characteristics, transformation ratio, polarity, secondary winding resistance, secondary load, ratio difference, angle difference and the like of various CT, and can be used for testing the excitation characteristics, transformation ratio, polarity, secondary winding resistance, ratio difference, angle difference and the like of various PT electromagnetic units.
Further, in order to meet the performance of heat dissipation and dust protection of the instrument, please refer to fig. 2, the heat dissipation cavity 2 is disposed at the left and right parts of the body 1, the heat dissipation cavity 2 is communicated with the inside of the body 1 and the heat dissipation holes 13, and the fan 3 is installed in the heat dissipation cavity 2 so that after the heat is generated during the operation of the devices inside the body 1, the heat is led out through the fan 3 and is discharged outwards from the heat dissipation holes 13.
The protection mechanism 4 is arranged at one side of the heat dissipation cavity 2, which is close to the heat dissipation hole 13, so that the heat dissipation hole 13 can be flexibly opened and closed, the heat dissipation hole 13 can be opened when heat dissipation is needed, and the protection mechanism 4 is used for automatically closing when heat dissipation is not needed, so that dust and external moisture are prevented from penetrating;
specifically, referring to fig. 2 and 3, the protection mechanism 4 includes a protection door 41, a guide rail 42, a moving assembly 43 and a driving assembly 44, the protection door 41 is provided with two parts, the upper and lower parts of the protection door 41 are respectively provided with the guide rail 42, the guide rail 42 is fixedly arranged on the inner wall of the heat dissipation cavity 2, and the two parts of the protection door 41 are displaced along the guide rail 42 to approach or separate from each other so as to open and close the heat dissipation hole 13.
In implementation, the outer sides of the protection doors 41 are mutually attached to the heat dissipation holes 13, the adjacent surfaces of the two protection doors 41 are provided with elastic sealing layers 411, and the elastic sealing layers 411 are preferably made of rubber, so that the protection doors 41 can be mutually attached to improve contact sealing performance.
One end of the moving component 43 is fixed with the protective door 41 to drive the protective door 41 to move, and the other end of the moving component 43 is connected with the driving component 44.
Specifically, the moving assembly 43 includes a strut 431, a rotating frame 432 and a moving block 433, the strut 431 is fixedly mounted on one side of the protective door 41 far away from the heat dissipation hole 13, the top of the rotating frame 432 is rotatably connected with the strut 431, and the bottom of the rotating frame 432 is rotatably mounted on the moving block 433.
The rotating frame 432 is symmetrically provided with two positions on the moving block 433, and when the moving block 433 moves up or down, the two moving doors 41 can be opened or closed by the rotating frame 432 to open or close the heat dissipation holes 13.
Wherein, the movable block 433 is internally provided with a thread groove, the driving assembly 44 comprises a screw rod 441, a motor 442 and a coupling 443, the movable block 433 is in threaded connection with the screw rod 441 through the thread groove, and an output shaft of the motor 442 is fixed with the screw rod 441 through the coupling 443.
Through adopting above-mentioned technical scheme, drive lead screw 441 through motor 442 and rotate for lead screw 441 can apply upward or decurrent removal application of force to movable block 433, makes movable block 433 realize the upper and lower shift demand.
Wherein, the bottom of the motor 442 is fixed with the heat dissipation chamber 2 to provide a stable and fixed support for the motor 442.
The control mode of the utility model is controlled by manually starting and closing the switch, the wiring diagram of the power element and the supply of the power supply are common knowledge in the field, and the utility model is mainly used for protecting the mechanical device, so the utility model does not explain the control mode and the wiring arrangement in detail.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (7)
1. A frequency conversion mutual-inductor tester, its characterized in that: comprises a body (1), a heat dissipation cavity (2), a fan (3) and a protection mechanism (4);
the front side of the body (1) is provided with a voltage measurement module (11) and a power output module (12), and the left side and the right side of the body (1) are provided with heat dissipation holes (13);
the heat dissipation cavity (2) is arranged at the left part and the right part of the body (1), the heat dissipation cavity (2) is communicated with the inside of the body (1) and the heat dissipation holes (13), the fan (3) is arranged in the heat dissipation cavity (2), and the protection mechanism (4) is arranged at one side, close to the heat dissipation holes (13), in the heat dissipation cavity (2) so as to flexibly open and close the heat dissipation holes (13);
the protection mechanism (4) comprises a protection door (41), guide rails (42), a moving assembly (43) and a driving assembly (44), wherein the protection door (41) is provided with two parts, the upper part and the lower part of the protection door (41) are respectively provided with the guide rails (42), the two parts of the protection door (41) are mutually close to or far away from each other along the guide rails (42), one end of the moving assembly (43) is fixed with the protection door (41) so as to drive the protection door (41) to move, and the other end of the moving assembly (43) is connected with the driving assembly (44).
2. The variable frequency transformer tester according to claim 1, wherein the moving assembly (43) comprises a strut (431), a rotating frame (432) and a moving block (433), the strut (431) is fixedly arranged on one side of the protective door (41) far away from the radiating hole (13), the top of the rotating frame (432) is rotatably connected with the strut (431), and the bottom of the rotating frame (432) is rotatably arranged on the moving block (433).
3. The variable frequency transformer tester according to claim 2, wherein the rotating frame (432) is symmetrically arranged at two positions on the moving block (433).
4. A variable frequency transformer tester according to claim 3, characterized in that the moving block (433) is internally provided with a thread groove, the driving assembly (44) comprises a screw rod (441), a motor (442) and a coupling (443), the moving block (433) is in threaded connection with the screw rod (441) through the thread groove, and an output shaft of the motor (442) is fixed with the screw rod (441) through the coupling (443).
5. The variable frequency transformer tester according to claim 4, wherein the bottom of the motor (442) is fixed with the heat dissipation chamber (2).
6. The variable frequency transformer tester according to claim 1, wherein the outer sides of the protective doors (41) are mutually attached to the radiating holes (13), and elastic sealing layers (411) are arranged on adjacent surfaces of the two protective doors (41).
7. The variable frequency transformer tester according to claim 1, wherein a display screen (14), a parameter adjusting button (15) and a printing component (16) are further arranged on the front side of the body (1), and a power input module (17) is further arranged on the right side of the body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322032092.9U CN220671615U (en) | 2023-07-31 | 2023-07-31 | Frequency conversion mutual inductor tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322032092.9U CN220671615U (en) | 2023-07-31 | 2023-07-31 | Frequency conversion mutual inductor tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220671615U true CN220671615U (en) | 2024-03-26 |
Family
ID=90328391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322032092.9U Active CN220671615U (en) | 2023-07-31 | 2023-07-31 | Frequency conversion mutual inductor tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220671615U (en) |
-
2023
- 2023-07-31 CN CN202322032092.9U patent/CN220671615U/en active Active
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