High-frequency pulse insulation testing device

Abstract

The utility model discloses a high-frequency pulse insulation testing device, belongs to the technical field of pulse insulation testing, and solves the problem of long-time stable operation of the existing high-frequency pulse insulation testing. The electric appliance cabinet comprises an electric appliance cabinet body, the electric appliance cabinet body is divided into an upper cabinet body and a lower cabinet body, a display screen controller is arranged on the upper cabinet body, a supporting rod is arranged in an inner cavity of the lower cabinet body, a plurality of cooling modules are arranged on the supporting rod, cooling channels are arranged in the cooling modules, and the cooling channels of the adjacent cooling modules are communicated through connecting water pipes. A cooling shell is arranged above one side of each cooling module, a pulse transformer is arranged in the cooling shell, and a circuit board is arranged above the other side of each cooling module. The high-frequency pulse insulation testing device has the advantages of being good in heat dissipation effect, capable of effectively guaranteeing long-time operation of equipment and effectively improving stability, wide in application range and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of pulse insulation testing, in particular to a high-frequency pulse insulation testing device. Background Art

[0002] Currently, high-frequency pulse insulation testers on the market are limited by technical principles and key components, with load capacities mostly below 500pF. They can only test the high-frequency pulse resistance of a single insulating material. However, the stator capacitance of new energy vehicle motors is generally greater than 10,000pF, making existing equipment unable to meet these testing requirements.

[0003] To meet the test requirements, a test device with a load capacity of up to 15,000pF is required. However, existing devices of this type generate severe heat in key switching devices due to the high test voltage and heavy load. In addition, the pulse electrical aging test is a long-term test that runs continuously for thousands of hours, which makes key switching devices easily damaged, affecting the smooth progress of the test. Therefore, a high-frequency pulse insulation test device with good heat dissipation for key switching devices is needed to ensure the long-term and reliable operation of the equipment. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a high-frequency pulse insulation testing device in response to the above-mentioned deficiencies in the prior art, which has good heat dissipation effect, effectively ensures long-term operation of the equipment, effectively improves stability, and has the characteristics of wide application range and strong practicality.

[0005] The technical solution adopted by the utility model is: a high-frequency pulse insulation testing device, including an electrical cabinet, the electrical cabinet is divided into an upper cabinet and a lower cabinet, the upper cabinet is provided with a display screen controller, the inner cavity of the lower cabinet is provided with a support rod, the support rod is provided with a plurality of cooling modules, the cooling modules are provided with cooling channels inside, the cooling channels of adjacent cooling modules are connected by connecting water pipes, a cooling shell is provided above one side of each cooling module, a pulse transformer is provided in the cooling shell, a circuit board is provided above the other side of each cooling module, a plurality of first resistors and a plurality of second resistors are provided on both sides below the cooling module, the first resistors and the second resistors are electrically connected to the circuit board, and the circuit board is electrically connected to the display screen controller.

[0006] As a further improvement, the cooling modules located on both sides are respectively connected to a water inlet pipe and a water outlet pipe, and the water inlet pipe and the water outlet pipe are connected to an external circulation pump.

[0007] Furthermore, the first resistor and the second resistor are arranged perpendicular to each other on both sides of the cooling module.

[0008] Furthermore, an insulating plate is provided on one side of the second resistor, and the insulating plate is mounted on the cooling module by bolts.

[0009] Furthermore, a water collecting tank is provided below the cooling module, and a liquid level detection device is provided on the water collecting tank.

[0010] Furthermore, the liquid level detection device includes a liquid level sensor and an alarm. The liquid level sensor is installed on the water collection tank, and the alarm is installed on the top of the electrical cabinet. The liquid level sensor and the alarm are both electrically connected to the display screen controller.

[0011] Furthermore, the upper cabinet is provided with a plurality of high-voltage indicator lights, and the plurality of high-voltage indicator lights are electrically connected to the circuit boards in a one-to-one correspondence.

[0012] Furthermore, the cooling channel is arranged in an S-shaped shape in the cooling module.

[0013] Beneficial effects

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] The utility model discloses a high-frequency pulse insulation test device, which can carry out multi-channel tests at the same time by designing multiple high-voltage test units. The data is monitored by a display screen controller and started by one-touch control keys in the display screen controller. The entire test process is automatically carried out without manual intervention, thereby reducing the workload of test personnel and improving test work efficiency. During a long test process, the cooling module absorbs the heat generated by the pulse transformer, the circuit board and multiple resistors, and then uses a circulating water pump to inject cooling water into the multiple cooling modules. The cooling water takes away the heat, so that the cooling modules play a cooling role, thereby cooling multiple important components, thereby ensuring long-term operation of the equipment and ensuring the stability of the test. The utility model has the characteristics of strong practicality and wide application range. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 This is a side view of the lower cabinet structure of the utility model;

[0018] Figure 3 It is an enlarged schematic diagram of the structure of the cooling module in the present invention.

[0019] Among them: 1-upper cabinet, 2-lower cabinet, 3-support rod, 4-display controller, 5-cooling module, 6-cooling shell, 7-connecting water pipe, 8-first resistor, 9-water collection tank, 10-water inlet pipe, 11-water outlet pipe, 12-alarm, 13-liquid level sensor, 14-second resistor, 15-insulating plate, 16-bolt, 17-circuit board, 18-cooling channel, 19-high voltage indicator light. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the specific embodiments in the accompanying drawings.

[0021] See Figure 1-3 As shown, a high-frequency pulse insulation test device of the present invention includes an electrical cabinet, which is divided into an upper cabinet 1 and a lower cabinet 2. The upper cabinet 1 is provided with a display screen controller 4, and the inner cavity of the lower cabinet 2 is provided with a support rod 3. The support rod 3 is provided with a plurality of cooling modules 5. The cooling modules 5 are provided with cooling channels 18 inside. The cooling channels 18 of adjacent cooling modules 5 are connected by connecting water pipes 7. A cooling shell 6 is provided above one side of each cooling module 5, and a pulse transformer is provided in the cooling shell 6. A circuit board 17 is provided above the other side of each cooling module 5. A plurality of first resistors 8 and a plurality of second resistors 14 are provided on both sides below the cooling module 5. The first resistor 8 and the second resistor 14 are electrically connected to the circuit board 17, and the circuit board 17 is electrically connected to the display screen controller 4. Multiple high-voltage test units are designed, and multi-channel tests can be carried out simultaneously. Data is monitored through the display screen controller 4, and the control key in the display screen controller 4 is used to start the entire test process automatically without human intervention, which reduces the workload of the test personnel and improves the test work efficiency. By integrating the pulse transformer, circuit board 17, first resistor 8, and second resistor 14 into the cooling module 5, during a long test process, the cooling module 5 absorbs the heat generated by the pulse transformer, circuit board 17 and multiple resistors, and then uses a circulating water pump to inject cooling water into the multiple cooling modules 5. The cooling water takes away the heat, so that the cooling module 5 plays a cooling role, thereby cooling multiple important components, thereby ensuring long-term operation of the equipment and ensuring the stability of the test.

[0022] Specifically, the cooling modules 5 on both sides are respectively connected to a water inlet pipe 10 and a water outlet pipe 11. The water inlet pipe 10 and the water outlet pipe 11 are connected to an external circulation pump. Cooling water is injected into one of the cooling modules 5 from the water inlet pipe 10 on one side. The cooling water is transferred between the cooling modules 5 through the connecting water pipe 7 and finally flows out from one of the cooling modules 5, thereby cooling each cooling module 5.

[0023] Preferably, the first resistor 8 and the second resistor 14 are arranged perpendicular to each other on both sides of the cooling module 5 to transfer heat to the cooling module 5 from different directions, thereby improving the heat absorption capacity of the cooling module 5.

[0024] Furthermore, an insulating plate 15 is provided on one side of the second resistor 14, and the insulating plate 15 is installed on the cooling module 5 by bolts 16. A plurality of sockets are provided on the insulating plate 15, each socket corresponding to a different second resistor 14. When in use, the size of the resistance in series in the circuit can be selected to meet different experimental requirements.

[0025] Furthermore, a water collecting tank 9 is provided under the cooling module 5, and a liquid level detection device is provided on the water collecting tank 9. When water leakage occurs at the joint of the cooling module 5, the cooling water will fall into the water collecting tank 9. The liquid level detection device can provide feedback on whether there is water leakage, thereby prompting the staff to perform repairs in time.

[0026] Furthermore, the liquid level detection device includes a liquid level sensor 13 and an alarm 12. The liquid level sensor 13 is installed on the water collection tank 9, and the alarm 12 is installed on the top of the electrical cabinet. The liquid level sensor 13 and the alarm 12 are both electrically connected to the display screen controller 4. When the leaked water is collected in the water collection tank 9, the liquid level sensor 13 detects the water level and transmits the signal to the display screen controller 4. The display screen controller 4 controls the alarm 12 to sound an alarm, thereby reminding the staff to perform repairs in time to avoid damage to other components.

[0027] Furthermore, a plurality of high-voltage indicator lights 19 are provided on the upper cabinet 1. The plurality of high-voltage indicator lights 19 are electrically connected to the circuit boards 17 in a one-to-one correspondence, and are used to display the operating status of each circuit, so as to facilitate inspection by staff.

[0028] Furthermore, the cooling channel 18 is arranged in an S-shaped shape in the cooling module 5. When the cooling water passes through the S-shaped cooling channel 18, the time it stays in the cooling module 5 is prolonged, thereby improving the cooling capacity.

[0029] When in use, a high-frequency pulse insulation test device of this embodiment can simultaneously perform multi-channel tests by designing multiple high-voltage test units, monitor data through the display controller 4, and start the entire test process automatically using the control key in the display controller 4. No manual intervention is required, which reduces the workload of the test personnel and improves the efficiency of the test work. By integrating the pulse transformer, circuit board 17, first resistor 8, and second resistor 14 into the cooling module 5, during a long test process, the cooling module 5 absorbs the heat generated by the pulse transformer, circuit board 17, and multiple resistors, and then uses a circulating water pump to inject cooling water into the multiple cooling modules 5. The cooling water takes away the heat, allowing the cooling module 5 to play a cooling role, thereby cooling multiple important components, thereby ensuring the long-term operation of the equipment and the stability of the test. A high-frequency pulse insulation test device of the utility model has good heat dissipation effect, effectively ensures the long-term operation of the equipment, effectively improves stability, and has the characteristics of wide application range and strong practicality.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention. These modifications and improvements will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A high-frequency pulse insulation test device, characterized in that: The invention comprises an electrical cabinet, wherein the electrical cabinet is divided into an upper cabinet (1) and a lower cabinet (2), wherein a display screen controller (4) is provided on the upper cabinet (1), a support rod (3) is provided in the inner cavity of the lower cabinet (2), a plurality of cooling modules (5) are provided on the support rod (3), cooling channels (18) are provided inside the cooling modules (5), and the cooling channels (18) of adjacent cooling modules (5) are connected through a connecting water pipe (7), a cooling shell (6) is provided above one side of each cooling module (5), a pulse transformer is provided in the cooling shell (6), a circuit board (17) is provided above the other side of each cooling module (5), a plurality of first resistors (8) and a plurality of second resistors (14) are provided on both sides below the cooling module (5), the first resistors (8) and the second resistors (14) are electrically connected to the circuit board (17), and the circuit board (17) is electrically connected to the display screen controller (4).

2. A high-frequency pulse insulation test device according to claim 1, characterized in that: The cooling modules (5) located on both sides are respectively connected to a water inlet pipe (10) and a water outlet pipe (11), and the water inlet pipe (10) and the water outlet pipe (11) are connected to an external circulation pump.

3. The high-frequency pulse insulation test device according to claim 1, characterized in that: The first resistor (8) and the second resistor (14) are arranged perpendicular to each other on both sides of the cooling module (5).

4. A high-frequency pulse insulation test device according to claim 3, characterized in that: An insulating plate (15) is provided on one side of the second resistor (14), and the insulating plate (15) is mounted on the cooling module (5) via bolts (16).

5. The high-frequency pulse insulation testing device according to claim 1, characterized in that: A water collecting tank (9) is provided below the cooling module (5), and a liquid level detection device is provided on the water collecting tank (9).

6. A high-frequency pulse insulation test device according to claim 5, characterized in that: The liquid level detection device comprises a liquid level sensor (13) and an alarm (12), wherein the liquid level sensor (13) is mounted on the water collection tank (9), and the alarm (12) is mounted on the top of the electrical cabinet, and the liquid level sensor (13) and the alarm (12) are both electrically connected to the display screen controller (4).

7. The high-frequency pulse insulation test device according to claim 1, characterized in that: The upper cabinet (1) is provided with a plurality of high-voltage indicator lights (19), and the plurality of high-voltage indicator lights (19) are electrically connected to the circuit board (17) in a one-to-one correspondence.

8. The high-frequency pulse insulation test device according to claim 1, characterized in that: The cooling channel (18) is arranged in an S-shaped manner in the cooling module (5).

Images