Lightning impulse test device

Abstract

The utility model discloses a lightning impulse test device, which comprises a test device main body, universal wheels are fixedly connected to the bottom surface of the test device main body, a fixing frame is fixedly connected to the right side of the test device main body, and a control cabinet controls the test device main body to perform sphere gap discharge work to generate high voltage. The refrigeration mechanism is started to reduce the temperature of air in the air pipe, the air inlet filtering mechanism is started to suck and filter external air through the connecting pipe, moisture in the air is absorbed through the moisture absorption assembly for drying work, and dried air is blown to electronic elements in the control cabinet after being cooled through the air pipe and the refrigeration mechanism; according to the lightning impulse test device, the electronic components can be rapidly cooled, the purpose of rapidly cooling the control cabinet on the lightning impulse test device is achieved, and the problems that the interior of the control cabinet is damaged due to overheating and the lightning impulse test device cannot operate normally due to the fact that the temperature of the test environment is high are solved.

Description

Technical Field

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

[0002] To assess the impact strength of transformer main and longitudinal insulation and to research improvements to transformer insulation structures, impulse voltage tests are conducted. A lightning impulse test applies a shock wave simulating a real lightning waveform to the transformer winding terminals. This shock wave is applied to transformers or other electrical equipment to test their ability to withstand (or be damaged by) the shock wave.

[0003] The lightning impulse test device is usually equipped with an electrical control cabinet, which is used to connect and control multiple electrical components on the test device. During the operation of the control cabinet on the test device, the internal electronic components will generate a lot of heat. Currently, the heat dissipation method of the existing control cabinet is mostly natural air cooling. When the test environment temperature is high, natural air cooling cannot meet the heat dissipation requirements of the control cabinet, resulting in overheating and damage of the electronic components inside the control cabinet, and the lightning impulse test device cannot operate normally. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a lightning impulse test device for solving the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A lightning impulse test device includes a test device body, a universal wheel fixedly connected to the bottom surface of the test device body, a fixing frame fixedly connected to the right side of the test device body, a control cabinet fixedly connected to the right side of the fixing frame, an air duct fixedly connected to the surface of the control cabinet, and the air outlet end of the air duct fixedly connected to the inner wall of the control cabinet, a connecting pipe fixedly connected to the inner wall of the air duct, an air inlet filter mechanism provided at the air inlet end of the connecting pipe, a moisture absorption component provided at the air inlet end of the connecting pipe, a refrigeration mechanism provided inside the air duct, and a switch door component provided on the front of the control cabinet.

[0007] Preferably, the air inlet filtering mechanism consists of an air hood, a filter screen and an air pump, the air outlet end of the air hood is fixedly connected to the air inlet end of the connecting pipe, and the air hood is fixedly connected to the top surface of the air duct, the filter screen is fixedly connected to the air inlet end of the air hood, the air pump is fixedly connected to the inner wall of the connecting pipe, and the air pump is fixedly connected to the top surface of the air duct.

[0008] Preferably, the desiccant assembly consists of a desiccant box, a top plate, a sealing gasket and a handle. The desiccant box is slidably connected to the inner wall of the air hood, the top plate is fixedly connected to the top surface of the desiccant box, the sealing gasket is fixedly connected to the inner wall of the top plate, and the sealing gasket overlaps with the top surface of the air hood, and the handle is fixedly connected to the top surface of the top plate.

[0009] Preferably, the refrigeration mechanism consists of a semiconductor refrigeration plate, a fixed cover and a heat dissipation fan, the semiconductor refrigeration plate is fixedly connected to the inner wall of the air duct, the fixed cover is fixedly connected to the surface of the air duct, and the heat dissipation fan is fixedly connected to the inner wall of the fixed cover.

[0010] Preferably, the switch door assembly consists of a hinge, a door panel and a door lock, the hinge is fixedly connected to the front of the control cabinet, the door panel is hingedly mounted on the control cabinet through the hinge, and the door panel overlaps the right side of the control cabinet, and the door lock is fixedly connected to the inner wall of the door panel.

[0011] Preferably, the air duct is rectangular and made of metal material.

[0012] Preferably, there are multiple semiconductor refrigeration plates, and all of the semiconductor refrigeration plates are located inside the air duct.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the lightning impulse test device can perform a lightning impulse test by controlling the test device body through a control cabinet to perform a spherical gap discharge operation to generate a high voltage, start the refrigeration mechanism to reduce the air temperature inside the air duct, start the air inlet filter mechanism to suck and filter the external air through the connecting pipe, absorb moisture in the air through the desiccant component to perform drying work, and the dry air is cooled through the air duct and the refrigeration mechanism and then blown to the electronic components inside the control cabinet, so that the electronic components can be quickly dissipated and cooled; the goal of facilitating the rapid heat dissipation and cooling of the control cabinet on the lightning impulse test device is achieved, and the problem of overheating and damage inside the control cabinet and inability of the lightning impulse test device to operate normally due to the high test environment temperature is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the structural survey drawing of the utility model;

[0015] Figure 2 This is a right sectional view of the structure of the utility model;

[0016] Figure 3 This is an enlarged view of the structure A of the utility model;

[0017] Figure 4 This is an enlarged view of the structure B of the utility model.

[0018] In the figure: 1. Test device body; 2. Universal wheel; 3. Fixed frame; 4. Control cabinet; 5. Air duct; 6. Connecting pipe; 7. Air hood; 8. Filter plate; 9. Air pump; 10. Dehumidification box; 11. Top plate; 12. Sealing gasket; 13. Handle; 14. Semiconductor cooling plate; 15. Fixed cover; 16. Cooling fan; 17. Hinge; 18. Door panel; 19. Door lock. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Reference Figure 1-4 , a lightning impulse test device, including a test device body 1, a universal wheel 2 is fixedly connected to the bottom surface of the test device body 1, a fixing frame 3 is fixedly connected to the right side of the test device body 1, a control cabinet 4 is fixedly connected to the right side of the fixing frame 3, an air duct 5 is fixedly connected to the surface of the control cabinet 4, and the air outlet end of the air duct 5 is fixedly connected to the inner wall of the control cabinet 4, the air duct 5 is rectangular, and the air duct 5 is made of metal material. The air duct 5 made of metal material has higher strength, is not easily deformed or damaged after being subjected to force, and is more durable. A connecting pipe 6 is fixedly connected to the inner wall of the air duct 5, and an air inlet filter mechanism is provided at the air inlet end of the connecting pipe 6. A moisture absorption component is provided at the air inlet end of the connecting pipe 6. The air duct 5 is internally provided with a filter mechanism. A refrigeration mechanism is provided, which consists of a semiconductor refrigeration sheet 14, a fixed cover 15 and a heat dissipation fan 16. There are multiple semiconductor refrigeration sheets 14, and multiple semiconductor refrigeration sheets 14 are located inside the air duct 5, which are used to cool and cool the air, thereby improving the refrigeration efficiency. The semiconductor refrigeration sheet 14 is fixedly connected to the inner wall of the air duct 5, the fixed cover 15 is fixedly connected to the surface of the air duct 5, and the heat dissipation fan 16 is fixedly connected to the inner wall of the fixed cover 15, which is used to reduce the temperature of the air circulating inside the air duct 5, so as to facilitate rapid heat dissipation and cooling of the interior of the control cabinet 4 through low-temperature air, thereby improving the heat dissipation efficiency. A switch door assembly is provided on the front of the control cabinet 4.

[0021] Specifically, the air intake filtering mechanism consists of an air hood 7, a filter screen 8 and an air pump 9. The air outlet end of the air hood 7 is fixedly connected to the air inlet end of the connecting pipe 6, and the air hood 7 is fixedly connected to the top surface of the air duct 5. The filter screen 8 is fixedly connected to the air inlet end of the air hood 7. The air pump 9 is fixedly connected to the inner wall of the connecting pipe 6, and the air pump 9 is fixedly connected to the top surface of the air duct 5. After starting the air pump 9, external air is sucked in through the connecting pipe 6 and the air hood 7, and impurities in the air can be filtered through the filter screen 8, thereby improving the cleanliness of the incoming air.

[0022] Specifically, the desiccant assembly consists of a desiccant box 10, a top plate 11, a sealing gasket 12 and a handle 13. The desiccant box 10 is slidingly connected to the inner wall of the air hood 7, the top plate 11 is fixedly connected to the top surface of the desiccant box 10, the sealing gasket 12 is fixedly connected to the inner wall of the top plate 11, and the sealing gasket 12 overlaps with the top surface of the air hood 7. The handle 13 is fixedly connected to the top surface of the top plate 11, which is used to absorb moisture in the air to avoid short circuit damage to the electronic components inside the control cabinet 4 due to high air humidity.

[0023] Specifically, the switch door assembly consists of a hinge 17, a door panel 18 and a door lock 19. The hinge 17 is fixedly connected to the front of the control cabinet 4. The door panel 18 is hingedly installed on the control cabinet 4 through the hinge 17, and the door panel 18 overlaps the right side of the control cabinet 4. The door lock 19 is fixedly connected to the inner wall of the door panel 18 and is used to open and close the control cabinet 4, which is convenient for protecting the electronic components inside the control cabinet 4 and facilitating the maintenance of the electronic components.

[0024] The electrical components mentioned in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that performs control such as a computer.

[0025] During use: the test device body 1 is controlled by the electronic components inside the control cabinet 4 to perform spherical gap discharge, and the high voltage required for the impact test is generated on the capacitor through the spherical gap discharge, so that the lightning impulse test can be carried out, and the semiconductor refrigeration plate 14 is started to absorb and release heat. The heat absorbing end of the semiconductor refrigeration plate 14 absorbs the heat inside the air duct 5 to reduce the air temperature, and the heat dissipation fan 16 is started to dissipate heat to the heat releasing end of the semiconductor refrigeration plate 14. The air pump 9 is started to suck external air through the connecting pipe 6 and the wind hood 7, and the external air is filtered through the filter plate 8. When the air passes through the desiccant box 10, the moisture in the air is absorbed by the desiccant provided inside the desiccant box 10 to dry the air. The dried air enters the air duct 5 through the connecting pipe 6, and the air temperature is reduced by the semiconductor refrigeration plate 14. The low-temperature air is blown to the electronic components inside the control cabinet 4 through the air duct 5, so that the electronic components can be quickly dissipated and cooled.

[0026] To sum up, the lightning impulse test device controls the test device main body 1 through the control cabinet 4 to perform spherical gap discharge to generate high voltage, so as to perform lightning impulse test, start the refrigeration mechanism to reduce the air temperature inside the air duct 5, start the air inlet filter mechanism to suck and filter the external air through the connecting pipe 6, and absorb moisture in the air through the desiccant component to perform drying. After the dry air is cooled through the air duct 5 and the refrigeration mechanism, it is blown to the electronic components inside the control cabinet 4, so as to quickly dissipate heat and cool down the electronic components, thereby achieving the goal of facilitating rapid heat dissipation and cooling of the control cabinet on the lightning impulse test device, avoiding the problem of overheating and damage inside the control cabinet due to the high test environment temperature, and the inability of the lightning impulse test device to operate normally, and is used to solve the problems raised in the above-mentioned background technology.

[0027] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lightning impulse test device, comprising a test device body (1), characterized in that: The bottom surface of the test device body (1) is fixedly connected to a universal wheel (2), the right side of the test device body (1) is fixedly connected to a fixing frame (3), the right side of the fixing frame (3) is fixedly connected to a control cabinet (4), the surface of the control cabinet (4) is fixedly connected to an air duct (5), and the air outlet end of the air duct (5) is fixedly connected to the inner wall of the control cabinet (4), the inner wall of the air duct (5) is fixedly connected to a connecting pipe (6), the air inlet end of the connecting pipe (6) is provided with an air inlet filter mechanism, the air inlet end of the connecting pipe (6) is provided with a moisture absorption component, a refrigeration mechanism is provided inside the air duct (5), and a switch door component is provided on the front of the control cabinet (4).

2. A lightning impulse test device according to claim 1, characterized in that: The air inlet filter mechanism is composed of an air hood (7), a filter screen plate (8) and an air pump (9); the air outlet end of the air hood (7) is fixedly connected to the air inlet end of the connecting pipe (6), and the air hood (7) is fixedly connected to the top surface of the air duct (5); the filter screen plate (8) is fixedly connected to the air inlet end of the air hood (7); the air pump (9) is fixedly connected to the inner wall of the connecting pipe (6), and the air pump (9) is fixedly connected to the top surface of the air duct (5).

3. A lightning impulse test device according to claim 2, characterized in that: The moisture absorption component consists of a moisture absorption box (10), a top plate (11), a sealing gasket (12) and a handle (13); the moisture absorption box (10) is slidably connected to the inner wall of the air hood (7); the top plate (11) is fixedly connected to the top surface of the moisture absorption box (10); the sealing gasket (12) is fixedly connected to the inner wall of the top plate (11), and the sealing gasket (12) overlaps the top surface of the air hood (7); and the handle (13) is fixedly connected to the top surface of the top plate (11).

4. A lightning impulse test device according to claim 1, characterized in that: The refrigeration mechanism is composed of a semiconductor refrigeration plate (14), a fixed cover (15) and a heat dissipation fan (16); the semiconductor refrigeration plate (14) is fixedly connected to the inner wall of the air duct (5); the fixed cover (15) is fixedly connected to the surface of the air duct (5); and the heat dissipation fan (16) is fixedly connected to the inner wall of the fixed cover (15).

5. A lightning impulse test device according to claim 1, characterized in that: The switch door assembly consists of a hinge (17), a door panel (18) and a door lock (19); the hinge (17) is fixedly connected to the front of the control cabinet (4); the door panel (18) is hingedly mounted on the control cabinet (4) through the hinge (17); the door panel (18) overlaps the right side of the control cabinet (4); and the door lock (19) is fixedly connected to the inner wall of the door panel (18).

6. A lightning impulse test device according to claim 1, characterized in that: The air duct (5) is rectangular and is made of metal material.

7. A lightning impulse test device according to claim 4, characterized in that: There are multiple semiconductor refrigeration sheets (14), and all of the multiple semiconductor refrigeration sheets (14) are located inside the air duct (5).

Images