CN207408473U - A kind of anti-high-voltage arc electrocution devices - Google Patents

Abstract

The utility model is an anti-high-voltage arc electric shock device, which belongs to the technical field of anti-high-voltage arc electric shock devices; the technical problem to be solved is: to provide a high-voltage anti-electric arc device that can be used in special working conditions such as gas-insulated substations and can accurately alarm high-voltage arcs Arc electric shock device; the technical solution adopted to solve this technical problem is: including a central processing unit, a metal plate, a filter circuit module, an amplifying circuit module, and a wireless communication module, and the output end of the metal plate is sequentially connected in series with the filter circuit module and the amplifying circuit After the module is connected to the signal input terminal of the central processing unit, the wireless communication module is bidirectionally connected to the central processing unit through wires; the wireless communication module is connected to the wireless communication modules of other high-voltage arc shock prevention devices through a wireless network; The signal input end of the processor is also connected with a toggle switch; the signal output end of the central processor is connected with an LED display light and an audio alarm; the utility model is used in special working conditions such as gas-insulated substations.

Description

An anti-high voltage arc electric shock device

technical field

The utility model discloses a high-voltage arc electric shock prevention device, which belongs to the technical field of high-voltage electric arc electric shock prevention devices.

Background technique

With the application of high-voltage power grids and high-voltage equipment, whether it is in engineering operations, daily life or power operation, it is very common for people to be close to high-voltage live objects. Therefore, the hazards of high-voltage electric shocks always exist. At present, there are many alarm devices to prevent high-voltage electric shocks. It is mainly composed of an antenna for receiving electric field energy, a signal processing module and an alarm module, and some devices also have GPS positioning functions and wireless data transmission functions.

In actual use, the existing alarm devices cannot be used normally in special working conditions. For example, in the GIS (Gas Insulated Substation Gas Insulated Substation) substation, although the alarm device has already started to alarm, due to the structural characteristics of the substation, people are far away from live electricity. The actual distance of the charged object is not less than the safe distance. At this time, the alarm is a false alarm. The reason is that the current alarm device uses a threshold alarm, that is, when the field strength of the charged object reaches the preset threshold, it will alarm. In some applications In some occasions, the field intensity under this threshold will not cause harm to the human body.

Utility model content

The utility model overcomes the deficiencies in the prior art, and the technical problem to be solved is: to provide a high-voltage arc electric shock prevention device that can be used in special working conditions such as gas-insulated substations and can accurately alarm the high-voltage arc; in order to solve the above technical problems , the technical solution adopted by the utility model is: a high-voltage arc electric shock prevention device, including a central processing unit, a metal plate, a filter circuit module, an amplifier circuit module, and a wireless communication module, and the output end of the metal plate is sequentially connected to the filter circuit The module and the amplifying circuit module are connected to the signal input end of the central processing unit, and the wireless communication module is bidirectionally connected to the central processing unit through wires;

The wireless communication module is connected to the wireless communication modules of other high-voltage arc electric shock prevention devices through a wireless network;

The signal input end of the central processing unit is also connected with a toggle switch;

The signal output end of the central processing unit is connected with an LED display lamp and an audio alarm.

The metal plate is a conductor that can collect charges around the high-voltage electrified body.

Compared with the prior art, the utility model has the following beneficial effects: the charge sensor provided by the utility model can collect the charge amount of each position in the substation environment in real time, and convert it into electric field strength, and then convert it into a device to charge by the central processing unit. In a special working environment such as a gas-insulated substation, professionals can determine whether to enter a dangerous area according to the alarm situation of the device. Compared with the existing alarm device, the device will not fail in a special working environment;

In addition, the utility model adopts a metal plate to replace the commonly used antenna of the existing device, which can make the device more compact and beautiful, and can be made into small parts such as armbands to be worn with you; the communication system of the device adopts a local area network composed of a low-power wireless network , when someone enters the dangerous area, the device can broadcast the dangerous information through the built-in audio alarm, and other staff in the local area network can also receive the alarm signal, determine and promptly remind the nearby staff entering the dangerous area according to the LED display light , to ensure the safety of work.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is the circuit structure schematic diagram of the present utility model;

In the figure, 1 is a central processing unit, 2 is a metal plate, 3 is a filter circuit module, 4 is an amplifier circuit module, 5 is a wireless communication module, 6 is a toggle switch, 7 is an LED display light, and 8 is an audio alarm.

Detailed ways

As shown in Fig. 1, a kind of anti-high-voltage arc electric shock device of the present utility model comprises central processing unit 1, metal plate 2, filter circuit module 3, amplifying circuit module 4, wireless communication module 5, the output terminal of described metal plate 2 The filter circuit module 3 and the amplifier circuit module 4 are connected in series successively to the signal input end of the central processing unit 1, and the wireless communication module 5 is bidirectionally connected to the central processing unit 1 through wires;

Described wireless communication module 5 is connected with the wireless communication module 5 of other anti-high voltage arc electric shock device through wireless network;

The signal input end of the central processing unit 1 is also connected with a toggle switch 6;

The signal output end of the central processing unit 1 is connected with an LED display lamp 7 and an audio alarm 8 .

The metal plate 2 is a conductor capable of collecting charges around the high-voltage electrified body.

The utility model can provide staff with an alarm device for preventing high-voltage arc electric shock in a special working environment, and can solve the problem of failure of the existing alarm device under special working conditions;

The utility model uses the metal plate 2 to collect the data of the charge quantity around the high-voltage charged body, converts it into the data of the electric field strength, and is processed by the central processing unit 1 as the distance data between the high-voltage charged body and the alarm. When the field strength near the device When the safety threshold preset by the central processing unit 1 is reached, the audio alarm 8 will be triggered to start an alarm. At the same time, the audio alarm 8 will broadcast the distance from the charged body. Professionals will decide whether to enter the area according to the specific broadcast information and in combination with the operating procedures. .

The metal plate 2 is used for sensing and collecting electric charge in the electric field, and the size of the field strength can be judged. The metal plate 2 can be the shell of the alarm device, or can be connected with the alarm device as a peripheral component. The metal plate 2 It can also be made into a deformable metal band for fixing the alarm device.

The field strength data collected by the metal plate 2 may be generated by 50Hz power frequency, or by its harmonics, or by other interference signals. After setting the filter circuit module 3, only the high voltage power can be obtained. The electric field strength signal of high-frequency electricity can filter out other interference signals, so that the alarm information can be obtained more accurately, and at the same time, it can also ensure that the device will not alarm due to the field strength of charged objects such as high-voltage direct current.

The signal output by the filter circuit module 3 is relatively weak, which is not conducive to the processing and analysis of information in the later stage. By setting the amplification circuit module 4, the signal can be amplified and transmitted to the central processing unit 1 .

The central processing unit 1 can calculate the distance between the alarm device and the charged body after performing analog-to-digital conversion on the data, and judge whether to control the audio alarm 8 to give an alarm.

The utility model is also provided with a toggle switch 6, which can be used to control and adjust the switch and voltage level of the alarm device. When the toggle switch 6 is turned to the open position, the device is powered on and starts to work, and the central processing unit 1 can trigger the oscillator to generate Self-inspection signal, the self-inspection signal is transmitted to the central processing unit 1 after the amplifying circuit module 4, if the signal transmission is normal, the self-inspection is successful, the central processing unit 1 drives the audio alarm 8 to broadcast the self-inspection success message, otherwise the self-inspection failure message is broadcast After the opening position is the voltage selection position of 220V, 10kV, 35kV, 110kV, 220kV, when the toggle switch 7 is turned to the corresponding position, the central processing unit 1 will drive the audio alarm 8 to play the voltage level of the corresponding gear.

When the audio alarm 8 is triggered to alarm, the central controller 1 will simultaneously control the LED display light 7 to flash and alarm, and when the nearby staff sees the flash, they will promptly remind the corresponding staff to keep a distance from the charged body;

If the nearby staff does not notice the flickering of the LED display light 7, the alarm signal can be transmitted to everyone through the wireless communication module 5; the wireless communication module 5 provided by the utility model can enter the All the alarm devices within the communication range and in the power-on state form a local area network. When someone enters the dangerous area, the wireless communication module 5 will be driven to send an alarm signal. Alarm 8 simultaneously broadcasts the alarm that companions enter the danger zone, and quickly locks the personnel entering the danger zone by looking for the flickering of LED display light 7; Anti-interference technology such as spread spectrum coding makes signal transmission more efficient.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand : It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the various embodiments of the present invention Scope of technical solutions.

Claims (2)

1. A high-voltage arc electric shock prevention device, characterized in that: it includes a central processing unit (1), a metal plate (2), a filter circuit module (3), an amplifier circuit module (4), and a wireless communication module (5). The output end of the metal plate (2) is connected in series with the filter circuit module (3) and the amplification circuit module (4) in sequence, and then connected to the signal input end of the central processing unit (1), and the wireless communication module (5) is connected to the The central processing unit (1) is bidirectionally connected; The wireless communication module (5) is connected to the wireless communication modules (5) of other high-voltage arc shock prevention devices through a wireless network; The signal input end of the central processing unit (1) is also connected with a toggle switch (6); The signal output terminal of the central processing unit (1) is connected with the LED display lamp (7) and the audio alarm (8). 2. A high-voltage arc-shock prevention device according to claim 1, characterized in that: the metal plate (2) is a conductor capable of collecting charges around high-voltage charged objects.