High-voltage discharge tool

Abstract

The utility model provides a high-voltage discharge tool, the high-voltage discharge tool comprises an external shell and a discharge circuit, the discharge circuit comprises a rectifier bridge and a first resistor, the input end of the rectifier bridge is electrically coupled with an energy storage element, the first resistor is electrically coupled with the output end of the rectifier bridge, and the first resistor is electrically coupled with the output end of the rectifier bridge. The resistance value of the first resistor can be adjusted. According to the high-voltage discharge tool provided by the utility model, the first resistor with adjustable resistance is designed, so that the high-voltage discharge tool can discharge capacitors with different voltage levels, and the adaptability and flexibility of discharge are improved.

Description

Technical Field

[0001] This utility model belongs to the field of high-voltage power equipment testing and maintenance technology, specifically relating to a high-voltage discharge tool. Background Technology

[0002] During equipment maintenance, it is often necessary to discharge capacitors. Traditional discharge methods usually use resistors or other devices to discharge them.

[0003] For example, a discharge device is provided in the prior art patent application document with patent application number CN202123193276.0, which includes two discharge pens and a discharge circuit board, wherein the discharge circuit board includes a main board and a power resistor.

[0004] However, the required discharge time and discharge efficiency often vary for different capacitors. The discharge methods described above may not meet the discharge requirements of all capacitors, especially for large capacitors, which store a lot of electrical energy and may require a long time to complete the discharge using traditional discharge methods. Utility Model Content

[0005] To address this issue, this utility model proposes a high-voltage discharge tool, providing a solution better suited to the capacitor discharge requirements of different voltage levels, ensuring rapid and safe completion of discharge operations during maintenance. The specific technical solution of this application is as follows: the high-voltage discharge tool includes an outer housing and a discharge circuit. The discharge circuit includes a rectifier bridge and a first resistor. The input terminal of the rectifier bridge is electrically coupled to an energy storage element, and the first resistor is electrically coupled to the output terminal of the rectifier bridge. The resistance value of the first resistor is adjustable.

[0006] Furthermore, the first resistor is a circular sliding rheostat.

[0007] Furthermore, the circular sliding rheostat includes a sliding contact, a knob is provided on the outer housing, the knob is fixedly connected to the sliding contact, a pointer is provided on the knob, and a discharge voltage indication scale is provided on the outer housing at a corresponding position around the knob.

[0008] Furthermore, the discharge circuit also includes a third resistor and a light-emitting diode. One end of the third resistor is electrically coupled to the output terminal of the rectifier bridge, and the other end is electrically coupled to the positive terminal of the light-emitting diode. The negative terminal of the light-emitting diode is grounded.

[0009] Furthermore, the discharge circuit also includes a second resistor, which is connected in series with the first resistor.

[0010] Furthermore, the outer housing includes a first probe and a second probe, both of which include a free end and a connecting end. The connecting end of the first probe and the second probe is electrically connected to the input end of the rectifier bridge, and the free ends of the first probe and the second probe are respectively used to contact the energy storage element.

[0011] Furthermore, the first and second probes are detachably connected to the outer housing.

[0012] Furthermore, a display screen is provided on the outer casing, and the display screen is electrically connected to the discharge circuit to display the current discharge voltage.

[0013] Furthermore, the outer housing is also equipped with a switch button for controlling the opening and closing of the high-voltage discharge tool.

[0014] Furthermore, the outer casing is made of insulating material.

[0015] Compared with the prior art, the beneficial technical effects of the technical solution of this application are as follows:

[0016] By designing an adjustable first resistor, the high-voltage discharge tool of this invention can discharge capacitors of different voltage levels, thus improving the adaptability and flexibility of the discharge process. Attached Figure Description

[0017] Figure 1 : A schematic diagram of the external housing of the high-voltage discharge tool of this application;

[0018] Figure 2 : A schematic diagram of the discharge circuit of the high-voltage discharge tool of this application;

[0019] Figure 3 A schematic diagram of the discharge circuit of a high-voltage discharge tool in one embodiment of this application;

[0020] Figure 4 : A schematic diagram of the discharge circuit of the high-voltage discharge tool in another embodiment of this application; Detailed Implementation

[0021] The following embodiments further illustrate the content of this utility model, but should not be construed as limiting the utility model. Any modifications or substitutions made to the methods, steps, or conditions of this utility model without departing from its spirit and essence are within the scope of this utility model.

[0022] The technical solution of this application will be described in detail with reference to the accompanying drawings.

[0023] In some embodiments, such as Figure 1As shown, a high-voltage discharge tool is provided, including an outer housing and a discharge circuit. The discharge circuit includes a rectifier bridge D1 and a first resistor R1. The input terminal of the rectifier bridge D1 is electrically coupled to an energy storage element, and the first resistor R1 is electrically coupled to the output terminal of the rectifier bridge D1. The resistance value of the first resistor R1 is adjustable.

[0024] In this embodiment, by adjusting the resistance value of the first resistor R1, capacitors of different voltage levels can be discharged. For example, when the voltage of the capacitor to be discharged is high, the resistance value of the first resistor R1 can be appropriately increased to reduce the discharge current and ensure the safety and stability of the discharge process; when the voltage of the capacitor to be discharged is low, the resistance value of the first resistor R1 can be appropriately decreased to increase the discharge current and improve the discharge efficiency.

[0025] In addition, in this embodiment, by using a rectifier bridge, it is not necessary to distinguish between the positive and negative terminals of the discharge circuit, making the use of high-voltage discharge tools more convenient and effectively preventing the impact of reverse voltage on the discharge circuit, thus protecting the circuit from damage.

[0026] There are various types of adjustable resistors, including knob resistors, slider resistors, and potentiometers. In this embodiment, a circular slider rheostat is preferably used as the first resistor R1. Circular slider rheostats have the advantages of a wide adjustment range and high adjustment precision, and the resistance value can be easily adjusted through the cooperation of the knob and the sliding contact. Furthermore, circular slider rheostats have a compact structure and occupy little space, which helps to reduce the size of high-voltage discharge tools, making them more portable.

[0027] In some embodiments, such as Figure 3 As shown, in order to make the high-voltage discharge tool of this application more convenient and practical, a knob 2 is provided on the outer housing 1. The knob 2 is fixedly connected to the sliding contact. A pointer 4 is provided on the knob 2. A discharge voltage indication scale 3 is provided on the outer housing 1 at the corresponding position of the knob 2.

[0028] In this embodiment, the resistance value can be precisely adjusted by rotating the knob 2 to move the sliding contact along the circular sliding rheostat. Simultaneously, the pointer 4 moves with the rotation of the knob 2, indicating the current discharge voltage in real time. This allows the operator to intuitively understand the discharge status, improving the convenience and accuracy of operation. The discharge voltage indicator scale 3 further facilitates the operator's reading and judgment of the discharge voltage.

[0029] In practical use, such as Figure 1As shown, when discharging an energy storage element such as a capacitor, if the voltage stored in the capacitor is measured to be 600V, turn knob 2 to point the pointer to the 600V mark. At this time, the resistance value of the first resistor R1 in the discharge circuit will be adjusted to a resistance value suitable for 600V voltage discharge. The operator only needs to contact the free ends of the first and second probes of the high-voltage discharge tool with the two electrodes of the capacitor to complete the fast and safe discharge of the capacitor.

[0030] In some embodiments, the discharge circuit further includes an indicator circuit, which includes a third resistor R3 and a light-emitting diode (LED). One end of the third resistor R3 is electrically coupled to the output terminal of the rectifier bridge D1, and the other end is electrically coupled to the positive terminal of the LED. The negative terminal of the LED is grounded.

[0031] In this embodiment, an indicator circuit can be set up to indicate the real-time operating status of the discharge circuit. When the discharge circuit starts working, the light-emitting diode (LED) will light up, indicating to the operator that the discharge process is in progress. This design not only improves the intuitiveness of operation but also helps to promptly detect and handle possible circuit faults, ensuring the safety and reliability of the discharge operation. Furthermore, the indicator circuit further enriches the functionality of the high-voltage discharge tool, making it more practical and convenient.

[0032] Furthermore, in this embodiment, the brightness of the LED changes with the discharge voltage in the capacitor. When the discharge voltage is high, the LED is bright; as the discharge voltage gradually decreases, the LED gradually dims until it goes out, indicating that the discharge process is complete. This design allows operators to more intuitively understand the discharge progress, further improving the convenience and accuracy of operation.

[0033] In some embodiments, to protect the first resistor, a second resistor is connected in series with it. The second resistor has a fixed resistance value and is used to share part of the current, preventing the first resistor from being damaged due to excessive current. This design not only improves the safety and reliability of the high-voltage discharge tool but also extends its service life. Furthermore, the addition of the second resistor does not significantly affect the discharge efficiency, still meeting the requirements for rapid and safe discharge.

[0034] In some embodiments, such as Figure 1 As shown, the outer housing 1 includes a first probe 5 and a second probe 6. Both the first probe 5 and the second probe 6 include a free end and a connecting end. The connecting end of the first probe 5 and the second probe 6 is electrically connected to the input end of the rectifier bridge D1. The free ends of the first probe 5 and the second probe 6 are respectively used to contact the energy storage element.

[0035] By setting the first and second probes 6, the high-voltage discharge tool of this application can be easily connected to the energy storage element to be discharged, achieving fast and accurate discharge operation. The free end design of the first probe 5 and the second probe 6 allows the operator to flexibly adjust the position and angle of the high-voltage discharge tool to adapt to energy storage elements of different shapes and sizes, improving the flexibility and applicability of the discharge operation. At the same time, the connection ends of the first probe 5 and the second probe 6 are electrically connected to the input end of the rectifier bridge, ensuring stable transmission of the discharge current and guaranteeing the consistency and reliability of the discharge effect.

[0036] In some embodiments, the first probe 5 and the second probe 6 are detachably connected to the outer housing 1.

[0037] The first probe 5 and the second probe 6 can be detachably connected to the outer housing 1 via threaded connection, snap-fit ​​connection, or magnetic connection, etc. This application does not limit this.

[0038] In some implementations, a display screen is provided on the outer housing, which is electrically connected to the discharge circuit and is used to display the current discharge voltage.

[0039] like Figure 3 As shown, the display screen displays the discharge voltage through the voltmeter V in the discharge circuit, allowing the operator to intuitively see the current discharge voltage value, further improving the convenience and accuracy of operation.

[0040] In some embodiments, the outer housing is further provided with a switch button for controlling the opening and closing of the high-voltage discharge tool.

[0041] The switch button design allows operators to easily control the working status of the high-voltage discharge tool, avoiding safety hazards caused by misoperation.

[0042] In some embodiments, the outer casing is made of an insulating material.

[0043] Using insulating material as the outer shell effectively prevents electric shock to operators during use, improving the safety performance of the high-voltage discharge tool. At the same time, the insulating material also has good corrosion resistance and wear resistance, extending the service life of the high-voltage discharge tool.

[0044] In summary, this application provides a high-voltage discharge tool that, by designing an adjustable first resistor, can discharge capacitors of different voltage levels, significantly improving the adaptability and flexibility of the discharge process.

[0045] Although the present invention has been described in detail above with general descriptions, specific embodiments, and experiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A high-voltage discharge tool, characterized in that, The high-voltage discharge tool includes an outer housing and a discharge circuit, the discharge circuit including a rectifier bridge and a first resistor. The input terminal of the rectifier bridge is electrically coupled to the energy storage element, and the first resistor is electrically coupled to the output terminal of the rectifier bridge. The resistance value of the first resistor can be adjusted.

2. The high-voltage discharge tool as described in claim 1, characterized in that, The first resistor is a circular sliding rheostat.

3. The high-voltage discharge tool as described in claim 2, characterized in that, The circular sliding rheostat includes a sliding contact, and a knob is provided on the outer housing. The knob is fixedly connected to the sliding contact, and a pointer is provided on the knob. A discharge voltage indication scale is provided on the outer housing at a corresponding position around the knob.

4. The high-voltage discharge tool as described in claim 1, characterized in that, The discharge circuit also includes an indicator circuit, which includes a third resistor and a light-emitting diode. One end of the third resistor is electrically coupled to the output terminal of the rectifier bridge, and the other end is electrically coupled to the positive terminal of the light-emitting diode. The negative terminal of the light-emitting diode is grounded.

5. The high-voltage discharge tool as described in claim 1, characterized in that, The discharge circuit also includes a second resistor, which is connected in series with the first resistor.

6. The high-voltage discharge tool as described in claim 1, characterized in that, The outer housing includes a first probe and a second probe. Both the first probe and the second probe include a free end and a connecting end. The connecting end of the first probe and the second probe is electrically connected to the input end of the rectifier bridge. The free ends of the first probe and the second probe are respectively used to contact the energy storage element.

7. The high-voltage discharge tool as described in claim 6, characterized in that, The first and second probes are detachably connected to the outer housing.

8. The high-voltage discharge tool as described in claim 1, characterized in that, The outer casing is equipped with a display screen, which is electrically connected to the discharge circuit and is used to display the current discharge voltage.

9. The high-voltage discharge tool as described in claim 1, characterized in that, The outer casing is also equipped with a switch button for controlling the opening and closing of the high-voltage discharge tool.

10. The high-voltage discharge tool as described in claim 1, characterized in that, The outer casing is made of insulating material.

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