Arc discharge protector

Abstract

The invention relates to an arc discharge protective device. When the high-tension outlet area produces the effect of arc discharge, it can use the voltage-transmitting unit of the arc discharge protective device to receive the high-tension arc discharge signal and transform it into low-tension arc discharge signal. After the filtering unit provides the judgment position to shiver the improper frequency signals, the rectifying unit receives the improper frequency signal and exports an arc clutter after rectification. And then the contacting control unit detects the arc clutter and exports one contacting control signal to stop the control unit or the driving unit. It avoids the spark or fire caused by the heat accumulation during the effect of the arc discharge.

Description

technical field [0001] The invention relates to a protection device, which can detect and trigger a control signal to stop the high-voltage output in the high-voltage output section when an arc discharge effect occurs in an abnormal phenomenon in the high-voltage output section. Background technique [0002] The so-called "arc discharge" phenomenon refers to adding a high volt voltage between two electrodes, and slowly approaching them. When the two electrodes are close to a certain distance, an arc-like electric spark will appear between the two electrodes. , its situation is similar to the lightning produced by thunderstorm clouds, except that the lightning is fleeting, while the sparks between the electrodes can exist for a long time to form heat accumulation. [0003] In the field of electronic circuits, arc discharge often destroys the functions of electronic components, causing ecological imbalances in electronic circuits, and more seriously, even endangering human lif...

AI Technical Summary

Problems solved by technology

[0004] 1. As shown in Figure 1, a general high-voltage transformer or a ceramic transformer has a fixed operating frequency, and a control frequency is provided by the control unit 11, and the two alternately cooperate with each other to generate high voltage between alternations. In addition, due to poor contact or other unknown factors at the output end of the booster unit 13, a break or a small gap will cause arc discharge, and the resulting arc phenomenon belongs to the state of high-voltage arc, except In addition to directly affecting the service life of the surrounding parts, it also indirectly affects the load 14. Therefore, it is usually equipped with a leakage protection device 30, and the leakage switch installed with short-circuit protection inside the leakage protection device 30 forms an open circuit when the discharge effect occurs. However, the leakage protection device 30 can usually only be placed on mechanical equipment with a small vibration force, so as to ensure sufficient arcing distance in the arc ejection direction. The position where the magnetic field is strong, and the leakage protection device 30 must also consider the hazards of water, dust and other factors in the installation, and other additional necessary protective measures must be taken. In addition to poor practicability, the installation cost is not in line with economic benefits.

[0005] Two, as shown in Figure 2, be the step-up unit 13 that transformer is constituted with piezoelectric sheet mode, this step-up unit 13 comprises a transformer (piezoelectric sheet) 131 and a circuit board 133, and this transformer (piezoelectric sheet) ) 131 and a circuit board 133 are connected through a lead wire place 132, and the circuit board 133 and the load 14 utilize plug-in components to form a plug joint 134, taking the inverter circuit as an example, the factors that produce the arc discharge effect are: (a ) due to changes in temperature and humidity, causing breakage or poor contact at the lead wire 132; (2) transformer (piezoelectric sheet) 131 breaking due to aging or failure; (3) aging or improper use of the socket 134, This results in a small gap between the male plug and the female seat; (4) The load 14 forms an open circuit state. The above factors will cause the high voltage output by the output terminal to appear an arc discharge signal. Figure 2 uses the arc steering device 40 to receive the arc discharge signal Then lead to the ground terminal, but this device cannot eliminate all arc discharge signals, so it will not control the operation of the entire circuit, so there will still be residual arc light in the booster unit 13 due to poor contact, temperature and humidity changes, etc. Discharge signal, and in the process of conduction and grounding, the circuit board 133 connected by the transformer (piezoelectric sheet) 131 still has an arc effect due to the continuous step-up and discharge of the transformer (piezoelectric sheet) 131, resulting in its heat accumulation or sparks causing burning. occur

[0006] It can be understood from the above description that the existing arc discharge protection device cannot completely prevent the arc discharge effect, and has many restrictions and is not widely used. Therefore, the present invention conceives a complete arc discharge protection device. When it is safe, the entire circuit will be stopped to prevent damage to the circuit board or other electronic parts due to the arc effect, thereby effectively avoiding the arc discharge effect

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