High-voltage test device

Abstract

The invention provides a high-voltage test device, and the device comprises a vehicle body which is provided with a plurality of walking wheels; the voltage regulating equipment is arranged in the vehicle body and comprises a driving motor and a voltage regulator, and the driving motor is in driving fit with the voltage regulator; the wire coiling structure is arranged in the vehicle body; the operation panel is arranged on the vehicle body; and the controller is arranged between the operation panel and the pressure regulating equipment, and the controller controls the driving motor according to a signal of the operation panel. According to the technical scheme, the problem of low efficiency of high-voltage testing in related technologies is effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of electric power testing, and in particular to a high voltage testing device. Background Art

[0002] In the critical field of high-voltage testing of power systems, there is a special work scenario problem, that is, testing operations on island substations. Since these substations are located on islands and transportation is limited to boats, this brings unique challenges to the testing work.

[0003] The test equipment currently used in the field of switchgear performance testing includes a series of instruments such as loop resistance testers, megohmmeters, test wire boxes, tool boxes, power cord reels, and 100kV (5kVA) cascade withstand voltage test devices. When these traditional test equipment were first designed, they did not fully consider the requirements for portability under special transportation conditions such as islands. Specifically, these instruments generally have the problems of bulky size and heavy weight. In particular, the 100kV (5kVA) cascade withstand voltage test device has a complex structure and consists of multiple components, and each component is quite heavy.

[0004] Whenever the test work is carried out, the staff needs to carry these equipment on and off the ship. Because the equipment is too heavy, this process requires the concerted efforts of multiple staff to complete. During the transportation process, the staff needs to expend great physical strength to move these heavy equipment between the narrow ship channel and the dock. This not only greatly consumes manpower, but also makes the staff exhausted every time they carry it. In the long run, this situation seriously affects the efficiency of the test work, causing the originally compact test schedule to be delayed due to equipment transportation problems. Summary of the invention

[0005] The main purpose of the present invention is to provide a high voltage test device to solve the problem of low efficiency of high voltage testing in the related art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a high-voltage testing device, including: a vehicle body, having multiple running wheels; a voltage regulating device, arranged in the vehicle body, the voltage regulating device including a driving motor and a voltage regulator, the driving motor and the voltage regulator driving cooperation; a wire winding structure, arranged in the vehicle body; an operating panel, arranged on the vehicle body; a controller, arranged between the operating panel and the voltage regulating device, the controller controlling the driving motor according to the signal of the operating panel.

[0007] Furthermore, the voltage regulating device also includes a reducer, which is arranged between the driving motor and the voltage regulator.

[0008] Furthermore, an operating knob and a stopper are provided on the voltage regulator, the reducer is provided between the operating knob and the driving motor, a protrusion is provided on the operating knob, and the stopper can cooperate with the protrusion to stop.

[0009] Furthermore, the wire coiling structure includes a driving member, a wire coiling shaft and a conducting structure, the driving member is connected to the wire coiling shaft, and the conducting structure can abut against or separate from the wire coiling shaft.

[0010] Furthermore, the conduction structure includes a plurality of push rods, each push rod has a first conductive member on its driving end, a second conductive member is provided on the wire coil shaft, and the push rods are telescopically arranged to abut the first conductive member and the second conductive member or to separate the first conductive member and the second conductive member.

[0011] Furthermore, the wire coiling structure also includes a transmission belt, which is connected between the driving member and the wire coiling shaft, and the controller is electrically connected to the driving member.

[0012] Furthermore, the first conductive member includes an arc-shaped metal sheet, and the second conductive member includes a metal ring, and the metal ring is sleeved on the wire coiling shaft.

[0013] Furthermore, the high-voltage test device also includes a control protection structure, which is arranged in the vehicle body and connected to the output end of the voltage regulating device. The control protection structure includes an overcurrent protection component, an overvoltage protection component, a ball gap protection component and a protection resistor.

[0014] Furthermore, the high-voltage testing device also includes a lifting structure, which is arranged at the bottom of the vehicle body and can be lifted to adjust the height position of the vehicle body.

[0015] Furthermore, the lifting structure includes a plurality of lifting rods arranged at intervals, a rotating wheel is arranged at the bottom of each lifting rod, and each lifting rod can be individually lifted and lowered.

[0016] According to the technical solution of the present invention, the vehicle body has a plurality of running wheels, the voltage regulating device is arranged in the vehicle body, the voltage regulating device includes a driving motor and a voltage regulator, the wire coiling structure is arranged in the vehicle body, the operating panel is arranged on the vehicle body, and the controller can control the driving motor according to the signal of the operating panel. Through the above-mentioned arrangement, the vehicle body can realize the movement of the vehicle body under the action of the running wheels, thereby making it easier to move the voltage regulating device, the wire coiling structure is electrically connected to the voltage regulating device, that is, the connection with the device to be tested can be realized through the wire coiling structure, the setting of the operating panel enables the tester to operate, that is, the boost value can be adjusted on the operating panel, the controller controls the driving motor to start according to the signal of the operating panel, the driving motor can adjust the voltage regulator, and then the voltage regulator is boosted to the preset value. The above-mentioned arrangement can not only make the transportation of the high-voltage test device simpler, but also ensure the safety of the test. Therefore, the technical solution of the present application effectively solves the problem of low efficiency of high-voltage testing in the related art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a high-voltage test device according to the present invention is shown;

[0019] Figure 2 Shows Figure 1 A schematic diagram of the structure of the voltage regulating equipment of the high-voltage test device;

[0020] Figure 3 Shows Figure 1 A schematic diagram of the structure of the coiled wire structure of the high-voltage test device;

[0021] Figure 4 Shows Figure 1 The control circuit diagram of the drive motor of the high voltage test device;

[0022] Figure 5 Shows Figure 1 Schematic diagram of the test process of the high-voltage test device.

[0023] The above drawings include the following reference numerals:

[0024] 10. Vehicle body; 11. Traveling wheel; 20. Voltage regulating device; 21. Driving motor; 22. Voltage regulator; 221. Operating knob; 222. Stopper; 23. Speed ​​reducer; 30. Wire winding structure; 31. Driving member; 32. Wire winding shaft; 321. Second conductive member; 33. Conducting structure; 331. Push rod; 332. First conductive member; 34. Transmission belt; 40. Operating panel; 50. Lifting structure; 51. Lifting rod; 511. Rotating wheel. DETAILED DESCRIPTION

[0025] 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 described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0027] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0028] like Figure 1 and Figure 2As shown, in this embodiment, the high-voltage test device includes: a vehicle body 10, a voltage regulating device 20, a wire coiling structure 30, an operation panel 40 and a controller. The vehicle body 10 has a plurality of running wheels 11. The voltage regulating device 20 is arranged in the vehicle body 10, and the voltage regulating device 20 includes a driving motor 21 and a voltage regulator 22, and the driving motor 21 cooperates with the voltage regulator 22 in driving. The wire coiling structure 30 is arranged in the vehicle body 10. The operation panel 40 is arranged on the vehicle body 10. The controller is arranged between the operation panel 40 and the voltage regulating device 20, and the controller controls the driving motor 21 according to the signal of the operation panel 40.

[0029] The technical solution of this embodiment is applied, the vehicle body 10 has a plurality of running wheels 11, the voltage regulating device 20 is arranged in the vehicle body 10, the voltage regulating device 20 includes a driving motor 21 and a voltage regulator 22, the wire coiling structure 30 is arranged in the vehicle body 10, the operation panel 40 is arranged on the vehicle body 10, and the controller can control the driving motor 21 according to the signal of the operation panel 40. Through the above-mentioned setting, the vehicle body 10 can realize the movement of the vehicle body 10 under the action of the running wheels 11, thereby making it easier to move the voltage regulating device, the wire coiling structure 30 is electrically connected to the voltage regulating device 20, that is, the connection to the device to be tested can be realized through the wire coiling structure 30, the setting of the operation panel 40 enables the tester to operate, that is, the boost value can be adjusted on the operation panel 40, the controller controls the driving motor 21 to start according to the signal of the operation panel 40, the driving motor 21 can adjust the voltage regulator 22, and then the voltage regulator 22 is boosted to a preset value. The above-mentioned setting can not only make the transportation of the high-voltage test device simpler, but also ensure the safety of the test. Therefore, the technical solution of this embodiment effectively solves the problem of low efficiency of high voltage testing in the related art.

[0030] This design allows the high-voltage test device to be used not only indoors, but also to be easily moved outdoors or to any site where high-voltage testing is required, greatly improving the scope of use and flexibility of the equipment. Through this integrated mobile design, the high-voltage test equipment can quickly respond to the on-site testing needs of power facilities without the need for additional transportation equipment, saving time and costs. This flexibility is particularly important in the maintenance and inspection of power facilities, especially in emergency situations, when the test equipment can be quickly moved to the vicinity of the fault point for timely testing and fault diagnosis.

[0031] like Figure 2As shown, in this embodiment, the voltage regulating device 20 further includes a reducer 23, which is arranged between the driving motor 21 and the voltage regulator 22. The addition of the reducer 23 makes the voltage regulation process more stable, and can more accurately control the output voltage, which is suitable for the detection of power equipment with high voltage stability requirements. In addition, the use of the reducer 23 improves the accuracy and stability of voltage regulation, especially when fine-tuning the insulation performance of the power equipment, it can avoid damage to the equipment caused by sudden changes in voltage.

[0032] like Figure 2 As shown, in this embodiment, the voltage regulator 22 is provided with an operating knob 221 and a stopper 222, the reducer 23 is arranged between the operating knob 221 and the drive motor 21, the operating knob 221 is provided with a protrusion, and the stopper 222 can cooperate with the protrusion. The design of the stopper 222 provides a physical restriction for the voltage regulator 22, avoiding the overvoltage situation that may occur in the automatic control mode, which is very important for protecting power equipment, especially when performing high-precision insulation testing, it can effectively prevent the voltage mutation from damaging the internal insulation layer of the power equipment, and ensure the accuracy of the test and the safety of the power facilities.

[0033] Specifically, Figure 5 As shown, the working process of the voltage regulating device 20 is as follows: when the high-voltage test device is powered on, each hardware module is initialized first. At this time, the drive motor 21 rotates counterclockwise, and this rotation process continues until the stopper 222 is triggered to determine the initial position. The operator inputs the test voltage value, protection parameters, etc. through the operation panel 40. The controller inside the high-voltage test device will calculate the voltage value that the voltage regulator 22 should output according to the preset algorithm and store and automatically calculate the test current value. After that, the output relay is started to control the drive motor 21 to rotate the corresponding angle, thereby driving the voltage regulator 22 to adjust the output voltage. During the entire high-voltage output process, the voltage output by the test transformer is monitored in real time. By comparing the actual output voltage and the target voltage, accurate closed-loop feedback regulation is achieved to ensure the output of a stable target voltage. In this process, the control and protection structure works synchronously to ensure the safety of the entire voltage regulation process.

[0034] The stopper 222 is a return-to-zero travel switch.

[0035] like Figure 3 As shown, in this embodiment, the wire coiling structure 30 includes a driving member 31, a wire coiling shaft 32 and a conducting structure 33. The driving member 31 is connected to the wire coiling shaft 32, and the conducting structure 33 can abut against or separate from the wire coiling shaft 32. The design of the wire coiling structure 30 enables the high-voltage cable to be retracted and released in an orderly manner, avoiding damage to the cable during movement, and is suitable for on-site operations that require frequent movement of test equipment, such as maintenance and inspection of power facilities.

[0036] Specifically, the innovative design of the cable winding structure 30 not only improves the efficiency of retracting and releasing high-voltage cables, but also reduces the potential safety hazards caused by disorderly placement of cables, and ensures the stability and safety of the test equipment during movement. It is of great value for on-site inspection and maintenance of power facilities, and can effectively improve work efficiency, reduce inspection preparation time, and avoid the risk of accidents caused by cable damage.

[0037] like Figure 3 As shown, in this embodiment, the conduction structure 33 includes a plurality of push rods 331, a first conductive member 332 is provided at the driving end of each push rod 331, a second conductive member 321 is provided on the wire coiling shaft 32, and the push rods 331 are telescopically arranged to make the first conductive member 332 and the second conductive member 321 abut or separate. This telescopic conduction structure 33 ensures the continuity and stability of the high-voltage output, and can ensure the normal conduction of the test even in a harsh environment, and is suitable for various high-voltage test environments, such as insulation test of power facilities, withstand voltage test of electrical equipment, etc.

[0038] The telescopic control circuit of the push rod 331 is as follows: Figure 4 Implementation principle: The single-chip microcomputer controller can control the high and low levels of the two output ports I01 / I02 to control the corresponding relay to work, so that the DC motor in the push rod 331 obtains forward and reverse currents, thereby realizing the telescopic movement of the push rod 331.

[0039] like Figure 3 As shown, in this embodiment, the cable winding structure 30 further includes a transmission belt 34, which is connected between the driving member 31 and the cable winding shaft 32, and the controller is electrically connected to the driving member 31. The use of the transmission belt 34 makes the rotation of the cable winding shaft 32 more stable, improves the efficiency and safety of cable winding and releasing, and is particularly suitable for the winding and releasing operation of long-distance high-voltage cables, such as high-voltage tests of large power facilities.

[0040] The above-mentioned setting not only improves the stability of cable retraction and release, but also reduces mechanical wear and extends the service life of the equipment. In the high-voltage test of large-scale power facilities, this design can effectively avoid the distortion and breakage that may occur during the long-distance cable retraction and release process, ensuring the continuity of the test and the accuracy of the data, and providing protection for the safe operation of power facilities.

[0041] like Figure 3As shown, in this embodiment, the first conductive member 332 includes an arc-shaped metal sheet, and the second conductive member 321 includes a metal ring, which is sleeved on the wire coiling shaft 32. The design of the first conductive member 332 and the second conductive member 321 not only ensures good electrical contact, but also has high mechanical strength, can withstand electrical stress under high voltage environment, and is suitable for testing high voltage electrical equipment, such as power transformers, high voltage cables, high voltage switches, etc.

[0042] Specifically, the combination of arc-shaped metal sheets and metal rings provides stability and reliability for electrical contact under high voltage, especially in the testing of high-voltage electrical equipment such as power transformers, high-voltage cables, high-voltage switches, etc. This design can effectively reduce contact resistance, reduce arc generation, protect the safety of equipment and operators, and improve the accuracy and efficiency of testing.

[0043] Working principle of coiled wire structure 30:

[0044] When the cable reel shaft 32 needs to rotate, the three push rods 331 connected to the live wire, neutral wire and ground wire of the mains electricity are retracted, so that the first conductive member 332 on the top of the push rod 331 is separated from the three second conductive members 321 on the cable reel shaft 32 connected to the corresponding cables, so that the cable reel shaft 32 can rotate freely to realize the deployment or recovery of the cable. When electrical connection and power supply are required, the push rod 331 is extended to make the first conductive member 332 contact with the second conductive member 321, thereby restoring the electrical connection and realizing power supply for the high-voltage test device.

[0045] like Figure 1 As shown, in this embodiment, the high-voltage test device also includes a control protection structure, which is arranged in the vehicle body 10 and connected to the output end of the voltage regulating device 20. The control protection structure includes an overcurrent protection component, an overvoltage protection component, a ball gap protection component, and a protection resistor. The setting of the control protection structure can effectively prevent abnormal conditions such as overcurrent and overvoltage during the test, protect the safety of the test equipment and operators, and is suitable for testing various high-voltage electrical equipment, such as withstand voltage tests and insulation tests of power transformers, high-voltage cables, high-voltage switches, etc.

[0046] That is, the above settings provide multiple safety guarantees for high-voltage tests. Overcurrent and overvoltage protection components can quickly cut off the power supply in abnormal situations to avoid damage to power equipment and test devices. Ball gap protection components and protective resistors can absorb and disperse excessive voltage at the moment of testing to protect operators from the risk of electric shock. This comprehensive protection measure allows high-voltage tests to be carried out safely in any environment, providing a strong safety guarantee for the inspection and maintenance of power facilities.

[0047] The principle of control and protection structure is as follows:

[0048] Test current calculation principle:

[0049] The selection of the rated current of the test is very important. It must be able to meet the requirements of the capacitive current and leakage current flowing through the test object. The required test current is calculated by the voltage applied during the test and the capacitance of the test object.

[0050] The calculation formula is: IC = ωCxxUs;

[0051] Where: IC—capacitive current of the test object during the test (mA);

[0052] ω—power supply angular frequency (2πf);

[0053] Cx—capacitance of the test product (μF);

[0054] Us—test voltage (kV).

[0055] Cx can be measured using an AC bridge or a capacitive bridge, or by applying an industrial frequency low voltage to the test product and estimating it based on the measured voltage and current (ignoring the effects of inductance and resistance). It can also be calculated using the built-in algorithm formula: Cx≈I / (ωU) (microfarads).

[0056] Where: I—measured current (mA);

[0057] U—Applied voltage (kV).

[0058] Overcurrent protection is used to monitor the current in the circuit. When the current exceeds the preset value, the circuit is quickly cut off to prevent the equipment from being damaged by overcurrent. Overvoltage protection works when the voltage rises abnormally to protect the equipment from overvoltage shock. Ball gap protection uses the discharge characteristics of the ball gap under high voltage to protect the equipment from overvoltage. The protection resistance R can be calculated as follows:

[0059] Where: U—effective value of test voltage (kV);

[0060] a—allowable wave head steepness, a=5kV / us can be used;

[0061] Cx—Capacitance of the test sample (F).

[0062] like Figure 1 As shown, in this embodiment, the high-voltage test device further includes a lifting structure 50, which is disposed at the bottom of the vehicle body 10 and can be lifted to adjust the height position of the vehicle body 10. The addition of the lifting structure 50 enables the device to adapt to test requirements at different heights, enhances the adaptability and flexibility of the device, and is particularly suitable for power facilities that need to be tested at different heights.

[0063] like Figure 1As shown, in this embodiment, the lifting structure 50 includes a plurality of lifting rods 51 arranged at intervals, and a rotating wheel 511 is arranged at the bottom of each lifting rod 51, and each lifting rod 51 can be independently lifted and lowered. This independent lifting design can not only adjust the overall height, but also adapt to uneven ground, improve the stability and safety of the equipment in complex environments, and is suitable for power equipment testing in non-standard test environments such as field operations and construction sites.

[0064] Specifically, the independent lifting design allows the high-voltage test device to maintain a stable working state when facing complex terrain, avoiding equipment tilt and inconvenience in operation caused by uneven ground. This design is particularly suitable for field operations and construction sites, such as in non-standard test environments such as mountainous areas, deserts, and construction sites. It can ensure the smooth movement and accurate testing of the test equipment, providing strong support for the detection and maintenance of power equipment under harsh conditions.

[0065] The lifting structure 50 of this invention can realize the functions of loading and unloading, specifically:

[0066] Working principle of loading process: When moving on normal flat road surface, the four lifting rods 51 retract, so that the four rotating wheels 511 connected to the lifting rods 51 leave the ground for a certain distance. At this time, the device relies on the four running wheels 11 to realize daily translation work. When loading is required, the four lifting rods 51 extend at the same time to lift the device trolley as a whole, up to 80 cm above the ground, which can meet the height requirements of most car compartments. During the lifting process, the operator pushes the device so that the two running wheels 11 in front of the device fall on the car lathe. Then, the two front rotating wheels 511 are retracted to the original position at the same time. At this time, the device is supported by the two front running wheels 11 and the two rear rotating wheels 511, and the device is continued to be pushed to make it completely board the car lathe. When the two rear running wheels 11 also fall on the car lathe, the two rear rotating wheels 511 are retracted to the original position, thereby completing the automatic loading function, which greatly reduces the difficulty of loading the device.

[0067] Working principle of the unloading process: Similarly, when it is necessary to unload the vehicle, the operation process is the opposite of the loading process. First, lower the two rear rotating wheels 511 to make them contact with the ground, then move the device to a certain position, and then extend the two front rotating wheels 511 to the ground. When the device trolley is completely moved outside the car lathe, retract the four rotating wheels 511 to the original position to complete the unloading operation.

[0068] The high-voltage test device of this embodiment realizes the mobility and portability of the equipment through the integrated body 10 design, which is convenient for on-site operation. The automated control of the voltage regulating equipment improves the accuracy and safety of the test, and the conduction design of the winding structure 30 ensures the stability and continuity of the high-voltage output. The setting of the control protection structure effectively prevents abnormal conditions such as overcurrent and overvoltage, and protects the safety of the test equipment and operators. The addition of the lifting structure 50 enables the equipment to adapt to test requirements at different heights, enhancing the adaptability and flexibility of the equipment. Overall, this solution significantly improves the efficiency and reliability of high-voltage tests, and provides strong support for the inspection and maintenance of power equipment. In addition, the modular design of the device makes the maintenance and upgrading of the equipment more convenient, and reduces the long-term operating cost. The modular design not only simplifies the maintenance process of the equipment, but also allows users to flexibly configure it according to different test requirements, reducing the cost of equipment upgrades and expansions.

[0069] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0070] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0071] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high voltage test device, characterized in that: include: A vehicle body (10) having a plurality of running wheels (11); A voltage regulating device (20) is arranged in the vehicle body (10), the voltage regulating device (20) comprises a driving motor (21) and a voltage regulator (22), the driving motor (21) and the voltage regulator (22) are drivingly matched; A wire coiling structure (30) is arranged in the vehicle body (10); An operation panel (40) is arranged on the vehicle body (10); A controller is arranged between the operation panel (40) and the voltage regulating device (20), and the controller controls the driving motor (21) according to a signal from the operation panel (40).

2. The high voltage test device according to claim 1, characterized in that: The voltage regulating device (20) further comprises a reducer (23), wherein the reducer (23) is arranged between the driving motor (21) and the voltage regulator (22).

3. The high voltage test device according to claim 2, characterized in that: The voltage regulator (22) is provided with an operating knob (221) and a stopper (222); the reducer (23) is arranged between the operating knob (221) and the drive motor (21); the operating knob (221) is provided with a protrusion; and the stopper (222) can cooperate with the protrusion in a stop manner.

4. The high voltage test device according to claim 1, characterized in that: The wire coiling structure (30) comprises a driving member (31), a wire coiling shaft (32) and a conducting structure (33); the driving member (31) is connected to the wire coiling shaft (32); and the conducting structure (33) can abut against or separate from the wire coiling shaft (32).

5. The high voltage test device according to claim 4, characterized in that: The conduction structure (33) comprises a plurality of push rods (331), a driving end of each push rod (331) is provided with a first conductive member (332), a second conductive member (321) is provided on the wire coil shaft (32), and the push rods (331) are telescopically arranged to enable the first conductive member (332) and the second conductive member (321) to abut against each other or to separate from each other.

6. The high voltage test device according to claim 4, characterized in that: The wire coiling structure (30) further comprises a transmission belt (34), wherein the transmission belt (34) is connected between the driving member (31) and the wire coiling shaft (32), and the controller is electrically connected to the driving member (31).

7. The high voltage test device according to claim 5, characterized in that: The first conductive member (332) comprises an arc-shaped metal sheet, and the second conductive member (321) comprises a metal ring, wherein the metal ring is sleeved on the wire coiling shaft (32).

8. The high voltage testing device according to claim 1, characterized in that: The high-voltage test device also includes a control protection structure, which is arranged in the vehicle body (10) and is connected to the output end of the voltage regulating device (20), and includes an overcurrent protection component, an overvoltage protection component, a ball gap protection component and a protection resistor.

9. The high voltage test device according to claim 1, characterized in that: The high-voltage test device further comprises a lifting structure (50), wherein the lifting structure (50) is arranged at the bottom of the vehicle body (10), and the lifting structure (50) can be lifted to adjust the height position of the vehicle body (10).

10. The high voltage testing device according to claim 9, characterized in that: The lifting structure (50) comprises a plurality of lifting rods (51) arranged at intervals, a rotating wheel (511) being arranged at the bottom of each lifting rod (51), and each lifting rod (51) can be independently lifted and lowered.

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