Alternating current automatic discharging device of high-voltage and ultrahigh-voltage all-in

Abstract

The utility model discloses a high-voltage and ultrahigh-voltage all-in-one machine AC automatic discharging device, comprising a relay JK2 and a relay JK4 which are arranged in parallel, 8 pins of the relay JK2 and the relay JK4 are connected with a 12V power supply, 7 pins of the relay JK2 and the relay JK4 are connected with an output end of an external MCU, a 1 pin of the relay JK2 is connected with a 24 power supply, and a 2 pin of the relay JK4 is connected with an output end of the external MCU. An external 220V alternating current is connected between a pin 1 and a pin 4 of the relay JK4; and a first pin of the voltage regulator VR is in signal connection with a sixth pin of the relay JK4. The utility model relates to the technical field of high-voltage test equipment discharge. The alternating-current automatic discharging device of the high-voltage and ultrahigh-voltage all-in-one machine can realize starting automatic disconnection and resetting automatic short-circuit discharging, and the action process of the alternating-current automatic discharging device is visual and visible and is convenient for workers to observe.

Description

Technical Field

[0001] The utility model relates to the technical field of discharge of high-voltage test equipment, in particular to an AC automatic discharge device for high-voltage and ultra-high-voltage integrated machines. Background Art

[0002] High-voltage testing refers to testing the withstand voltage capabilities of various high- and low-voltage electrical devices, insulating materials, and insulating structures. The basic theory of high-voltage testing is to expose a product to a very harsh environment. If the product can still maintain normal conditions in such a harsh environment, it can be determined that it can also maintain normal conditions when working in a normal environment.

[0003] The circuit schematic diagram of the existing discharge rod discharge is as Figure 1 shown. The grounding wire of the discharge rod is connected to the grounding end in advance. After the withstand voltage test is completed, the MCU output is disconnected, the relay JK4 loses power, the subsequent stage is powered off, the voltage regulator returns to zero, and then the discharge ball of the discharge rod is manually controlled to short-circuit and discharge the high-voltage end 7 position of the high-voltage transformer. However, in a high-voltage integrated machine, automatic discharge and intuitive discharge are the characteristics of integration, and manual discharge can no longer meet the requirements.

[0004] Therefore, the utility model provides an AC automatic discharge device for high-voltage and ultra-high-voltage integrated machines to solve the above problems. Content of the Utility Model

[0005] In view of the deficiencies of the prior art, the utility model provides an AC automatic discharge device for high-voltage and ultra-high-voltage integrated machines, which solves the above problems.

[0006] To achieve the above purposes, the utility model is realized through the following technical solutions: An AC automatic discharge device for high-voltage and ultra-high-voltage integrated machines, comprising:

[0007] Relays JK2 and JK4 connected in parallel. The 8th pins of the relays JK2 and JK4 are both connected to a 12V power supply. The 7th pins of the relays JK2 and JK4 are both connected to the output end of an external MCU. The 1st pin of the relay JK2 is connected to a 24V power supply. A 220V AC power supply from the outside is connected between the 1st pin and the 4th pin of the relay JK4;

[0008] A voltage regulator VR. The 1st pin signal of the voltage regulator VR is connected to the 6th pin of the relay JK4, and the 2nd pin signal of the voltage regulator VR is connected to the 3rd pin of the relay JK4;

[0009] A high-voltage transformer T. The primary winding of the high-voltage transformer T is connected in series between the 1st pin and the 3rd pin of the relay JK4;

[0010] Discharge rod, the discharge rod is installed on a 90° self-resetting rotating magnet, one end of the rotating magnet is grounded, and the other end of the rotating magnet is signal-connected to the 3rd pin of the relay JK2.

[0011] Preferably, the ground wire of the discharge rod is connected to the ground.

[0012] Preferably, the 1st pin of the relay JK4 is connected to the live wire of the external 220V alternating current, and the 4th pin of the relay JK4 is connected to the neutral wire of the external 220V alternating current. Beneficial effects

[0013] The present utility model provides a high-voltage and ultra-high-voltage integrated AC automatic discharge device. Compared with the prior art, it has the following beneficial effects:

[0014] The high-voltage and ultra-high-voltage integrated AC automatic discharge device provided by the present utility model can realize automatic disconnection at startup and automatic short-circuit discharge at reset, and its action process is visually visible, which is convenient for the staff to observe. Description of the drawings

[0015] Figure 1 It is the circuit schematic diagram of the traditional discharge rod for discharging;

[0016] Figure 2 It is the overall circuit diagram of the present utility model; Detailed implementation manners

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model. Embodiment

[0018] Please refer to Figure 2 , the high-voltage and ultra-high-voltage integrated AC automatic discharge device includes:

[0019] Relay JK2 and relay JK4 arranged in parallel. The 8th pins of relay JK2 and relay JK4 are both connected to the 12V power supply. The 7th pins of relay JK2 and relay JK4 are both connected to the output end of the external MCU. The 1st pin of relay JK2 is connected to the 24V power supply. An external 220V alternating current is connected between the 1st pin and the 4th pin of relay JK4;

[0020] Voltage regulator VR, the 1st pin of voltage regulator VR is signal-connected to the 6th pin of relay JK4, and the 2nd pin of voltage regulator VR is signal-connected to the 3rd pin of relay JK4;

[0021] A high-voltage transformer T, the primary winding of the high-voltage transformer T is connected in series between the 1st pin and the 3rd pin of the relay JK4;

[0022] A discharge rod is installed on a 90° self-resetting rotating magnet. One end of the rotating magnet is grounded, and the other end of the rotating magnet is connected to the 3rd pin of the relay JK2 in signal.

[0023] The grounding wire of the discharge rod is connected to the ground.

[0024] The 1st pin of the relay JK4 is connected to the live wire of the external 220V alternating current, and the 4th pin of the relay JK4 is connected to the neutral wire of the external 220V alternating current.

[0025] In this embodiment, controlled by the MCU, when the rotating magnet is powered off, the discharge ball of the discharge rod is at position A, and the discharge ball is short-circuited with the high-voltage output terminal 7. When the MCU outputs a signal, the relays JK2 and JK4 are simultaneously energized and attracted. The 1st pin (common point) of the relay JK2 is connected to the 3rd pin (normally open point). The rotating magnet is energized and rotates 90°. The discharge rod rotates from position A to position B. At this time, the high voltage of the high-voltage transformer T can be boosted normally. When the MCU disconnects the output, the relay JK2 is powered off, the 1st pin and the 3rd pin of the relay JK2 are disconnected, the rotating magnet is powered off, the rotating magnet will self-reset, and the discharge rod will reset from position B to position A and be short-circuited with the 7th pin (high-voltage terminal) of the high-voltage transformer T, realizing automatic disconnection at startup and automatic short-circuit discharge at reset, and its action process is intuitively visible.

[0026] At the same time, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0027] It should be noted that in this article, relational terms such as first and second are only used 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 term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

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

Claims

1. High voltage and ultra-high voltage integrated AC automatic discharge device, characterized in that: include: Relay JK2 and relay JK4 are arranged in parallel, pin 8 of the relay JK2 and relay JK4 are both connected to a 12V power supply, pin 7 of the relay JK2 and relay JK4 are both connected to the output end of an external MCU, pin 1 of the relay JK2 is connected to a 24V power supply, and pins 1 and 4 of the relay JK4 are connected to an external 220V AC power supply; A voltage regulator VR, wherein the signal of pin 1 of the voltage regulator VR is connected to the pin 6 of the relay JK4, and the signal of pin 2 of the voltage regulator VR is connected to the pin 3 of the relay JK4; A high-voltage transformer T, wherein the primary winding of the high-voltage transformer T is connected in series between pins 1 and 3 of the relay JK4; The discharge rod is mounted on a 90° self-resetting rotating magnet, one end of the rotating magnet is grounded, and the other end of the rotating magnet is signal-connected to pin 3 of the relay JK2.

2. The high voltage and ultra-high voltage integrated AC automatic discharge device according to claim 1 is characterized in that: The grounding wire of the discharge rod is connected to the earth.

3. The high voltage and ultra-high voltage integrated AC automatic discharge device according to claim 1 is characterized in that: Pin 1 of the relay JK4 is connected to the live wire of the external 220V AC power, and pin 4 of the relay JK4 is connected to the neutral wire of the external 220V AC power.

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