CN219513784U - Fireproof electric shock protection device - Google Patents

Abstract

The utility model discloses a fireproof electric shock protection device in the technical field of relay protection devices, which comprises a household switch connected with a zero line N and a fire line L, wherein an output terminal of the household switch is connected with an arc extinction protection device for monitoring the current of a power line in real time and performing current limiting protection on the line. The utility model can prevent the damage of the load component caused by the over-high temperature by starting the circuit breaking protector component, and can avoid the fire hazard caused by the short circuit of the phase line or the zero fire wire by being applied to the single-phase alternating current electric circuit, solve the problems of large short circuit current, long turn-off time and large arc spark of the air switch, prevent the fire caused by the short circuit process of the electric circuit, obviously reduce the fire accident and ensure the property and personal safety.

Description

Fireproof electric shock protection device

Technical Field

The utility model relates to the technical field of relay protectors, in particular to a fireproof electric shock protection device.

Background

The relay is an automatic switching element with an isolation function and is widely applied to remote control, remote measurement, communication, automatic control and power electronic equipment. A relay is an electric control device that causes a predetermined step change in a controlled amount in an electric output circuit by giving a prescribed input amount and holding for a sufficient time. When the input amount is reduced to a certain degree and kept for a long enough time, the state is restored to the original state. The circuit fireproof current-limiting type solid-state relay protector has the capacity of limiting short-circuit current and can cut off fault current rapidly. Aiming at different current blocking requirements of various circuits, the load of the over-rated current is prevented, the power consumption electric appliance and the circuit can not work in the state of the over-rated current, no manual operation is needed, the effect of foolproof short circuit treatment is achieved, the power consumption electric appliance is kept to be continuously supplied, the power consumption electric appliance is automatically recovered immediately after fault elimination or is automatically recovered after time delay, and the recovery time is set by default when leaving a factory.

However, the existing protector has the defects of large short-circuit current, long turn-off time and large arc spark, and is not beneficial to guaranteeing the property and personal safety. Based on the above, the utility model designs a fireproof electric shock protection device to solve the above problems.

Disclosure of Invention

The utility model aims to provide a fireproof electric shock protection protector so as to solve the problems of large short-circuit current, long turn-off time and large arc spark of the existing protector.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a fire prevention protection against electric shock protector, including the switch of registering one's residence of being connected with zero line N and live wire L, be used for cutting off the protection total line, the switch of registering one's residence is used for switching on outside 220V AC power grid, the output wiring end connection arc-extinguishing protector of registering one's residence, be used for real-time supervision with the electric wire line electric current and carry out the current-limiting protection to the line, arc-extinguishing protector includes arc-extinguishing ware and sensing part, sensing part's one end is connected with circuit breaker subassembly, be used for controlling the load current break-make, circuit breaker subassembly's one end electric connection has relay subassembly, be used for automatically regulated, safety protection and converting circuit, relay subassembly's one end is connected with load subassembly, load subassembly's the other end is connected with cooling system, be used for load subassembly heat dissipation.

As a further scheme of the utility model: the household switch is a bipolar air switch, an overcurrent protection unit and an overload protection unit are arranged in the household switch, and the working voltages of the overcurrent protection unit and the overload protection unit are 220V alternating current.

As a further scheme of the utility model: the induction component comprises a leakage transformer and a temperature sensor, the leakage transformer is used for avoiding electric shock, the temperature sensor is used for detecting line temperature, the bottom of the induction component is connected with a gauge outfit, and the gauge outfit is one or two of a voltmeter and an ammeter.

As a further scheme of the utility model: the circuit breaker protector assembly comprises one or a plurality of circuit breakers QF1, QF2, QF3 and QF4, is a single-stage protector and is used for circuit power-off protection, when a short-circuit fault occurs between a zero line or a fire ground wire, the circuit breaker protector assembly can realize rapid current limiting protection and disconnection of a load within 120 microseconds, the reaction time is less than 20ms and within one electric power cycle, electric fire accidents caused by overlarge short-circuit current are restrained, the use safety of the protector is improved, and the circuit breaker protector assembly further comprises an LED stroboscopic alarm lamp.

As a further scheme of the utility model: the relay assembly comprises one or more of a relay KA1, a relay KA2, a relay KA3 and a relay KA4, wherein the relay KA1, the relay KA2, the relay KA3 and the relay KA4 are 32A current-limiting relays or 16A current-limiting relays.

As a further scheme of the utility model: one end of the relay assembly is connected with a load assembly, the load assembly comprises one or a plurality of air conditioners, kitchens, illumination and sockets, and when the load current in a protected circuit exceeds a rated current value and the overload duration exceeds a set time, the protector performs current limiting protection action so as to avoid potential safety hazards caused by accelerated aging of the circuit.

As a further scheme of the utility model: the circuit breaker protector assembly comprises a plurality of circuit breakers, a plurality of relays and a plurality of loads, wherein the circuit breakers, the relays and the loads are equal in number, the circuit breaker protector assembly further comprises LED lamps and pulse counting components, meanwhile, a load power supply is disconnected, the power supply is automatically recovered after the temperature in the circuit breaker assembly is lower than a default value, meanwhile, the LED lamps are lightened and flash for standby state every 5 seconds, the heat dissipation system comprises one or two of a heat dissipation fan and a heat dissipation fin, and is used for heat dissipation of the load assembly in the system, and the heat dissipation fan automatically operates to conduct heat dissipation when the temperature in the circuit breaker assembly exceeds 50 degrees.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the circuit is protected from overheat and current limitation by starting the circuit breaker assembly, so that the damage of the load assembly caused by overhigh temperature is prevented, the fire hazard caused by the short circuit of a phase line or a zero fire wire is avoided by being applied to a single-phase alternating current or direct current electric circuit, the problems of high short circuit current, long turn-off time and high generation of arc sparks of an air switch are solved, the fire occurrence caused by continuous ignition arc ignition caused in the short circuit process of the electric circuit is prevented, the fire accident can be obviously reduced, and the property and personal safety are ensured.

2. According to the utility model, the plurality of circuit breakers are matched with the relay and the heat dissipation system, so that the power supply can be rapidly cut off before the load short-circuit current does not reach the maximum value, the load assembly is protected, when the power supply is cut off, the arc-extinguishing protector is used for avoiding arc spark, the circuit is protected, the use safety is high, the device can be widely applied to hotels, libraries, machine rooms, entertainment places, schools, electric vehicle charging stations and the like, and the practicability is strong.

Drawings

Fig. 1 is a circuit diagram of the present utility model.

In the figure: 1. a home switch; 101. an overcurrent protection unit; 102. an overload protection unit; 2. an arc extinguishing protector; 3. a gauge head; 4. a circuit breaker assembly; 5. a relay assembly; 6. air-conditioning; 7. a kitchen; 8. illumination; 9. a socket; 10. a load assembly; 11. a leakage transformer; 12. a temperature sensor.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

This embodiment;

referring to fig. 1, in the embodiment of the utility model, the fireproof electric shock protection device comprises a home switch 1 connected with a zero line N and a live line L for cutting off a protection main line, the home switch 1 is used for connecting an external 220V ac power grid, an output terminal of the home switch 1 is connected with an arc extinction protector 2 for monitoring a line current in real time and performing current limiting protection on the line, the arc extinction protector 2 comprises an arc extinction device and an induction component, the induction component comprises a leakage transformer 11 and a temperature sensor 12, the leakage transformer 11 is used for avoiding electric shock, the temperature sensor 12 is used for detecting the line temperature, a gauge head 3 is connected at the bottom of the induction component, the gauge head 3 is an ammeter, one end of the induction component is connected with a circuit breaking protector component 4 for controlling the on-off of load current, one end of the circuit breaking protector component 4 is electrically connected with a relay component 5, the circuit is used for automatic regulation, safety protection and conversion circuit, the circuit is subjected to over-temperature current-limiting protection by starting the circuit breaker component 4, the damage of the load component 10 caused by over-temperature is prevented, the fire hazard caused by the short circuit of a phase line or a zero fire wire is avoided by being applied to a single-phase alternating current electric circuit, the problems of large short circuit current, long turn-off time and large arc spark of an air switch are solved, the fire occurrence caused by continuous ignition arc ignition objects caused in the short circuit process of the electric circuit is prevented, the fire accident can be obviously reduced, the property and personal safety are ensured, one end of the relay component 5 is connected with the load component 10, the load component 10 comprises an air conditioner 6, a kitchen 7, a lighting 8 and a socket 9, when the load current in the protected circuit exceeds a rated current value and the overload duration exceeds a set time, the protector performs the current-limiting protection action, the other end of the load assembly 10 is connected with a heat dissipation system 13 for dissipating heat of the load assembly 10 so as to avoid potential safety hazards caused by accelerated aging of the circuit.

Preferably, as shown in fig. 1, the home switch 1 is a bipolar air switch, and an overcurrent protection unit 101 and an overload protection unit 102 are arranged in the home switch 1, and the working voltages of the overcurrent protection unit 101 and the overload protection unit 102 are 220V alternating current.

Preferably, as shown in fig. 1, the circuit breaker assembly 4 includes a circuit breaker QF1, a circuit breaker QF2, a circuit breaker QF3 and a circuit breaker QF4, and the circuit breaker assembly 4 is a single-stage protector for circuit power-off protection, when a short-circuit fault occurs between a zero line or a fire ground line, the circuit breaker assembly 4 can realize rapid current limiting protection to break a load within 120 microseconds, the reaction time is less than 20ms, and in one power cycle, an electric fire accident caused by overlarge short-circuit current is restrained, and the use safety of the protector is improved.

Preferably, as shown in fig. 1, the relay assembly 5 includes a relay KA1, a relay KA2, a relay KA3, and a relay KA4, and the relay KA1, the relay KA2, the relay KA3, and the relay KA4 are 32A current limiting relays.

Preferably, as shown in fig. 1, the number of circuit breakers, the number of relays and the number of loads contained in the circuit breaker assembly 4 are equal, the circuit breaker assembly 4 further comprises an LED lamp and a pulse counting component, the load power supply is disconnected at the same time, the power supply is automatically restored after the temperature in the machine is lower than a default value, the LED lamp is turned on and flashes for standby every 5 seconds, the heat dissipation system 13 comprises one or two of a heat dissipation fan and a heat dissipation fin, and the heat dissipation fan is automatically operated for heat dissipation when the temperature in the machine exceeds 50 degrees, so as to dissipate heat.

The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.

Claims (7)

1. The utility model provides a fire prevention protection against electric shock protector which characterized in that: the household switch (1) is connected with the zero line N and the live line L and is used for cutting off a protection main line; the output wiring end of the household switch (1) is connected with the arc-extinguishing protector (2) for real-time monitoring of electric line current and current-limiting protection of a line, the arc-extinguishing protector (2) comprises an arc-extinguishing device and an induction component, one end of the induction component is connected with a circuit-breaking protector component (4) for controlling the on-off of load current, one end of the circuit-breaking protector component (4) is electrically connected with a relay component (5) for automatic adjustment, safety protection and a conversion circuit, one end of the relay component (5) is connected with a load component (10), and the other end of the load component (10) is connected with a heat dissipation system (13) for heat dissipation of the load component (10).

2. The fire and electric shock protection device according to claim 1, wherein: the household switch (1) is a bipolar air switch, an overcurrent protection unit (101) and an overload protection unit (102) are arranged in the household switch (1), and the working voltages of the overcurrent protection unit (101) and the overload protection unit (102) are 220V alternating currents.

3. The fire and electric shock protection device according to claim 1, wherein: the induction component comprises a leakage transformer (11) and a temperature sensor (12), the leakage transformer (11) is used for avoiding electric shock, the temperature sensor (12) is used for detecting line temperature, and the bottom of the induction component is connected with a gauge outfit (3).

4. The fire and electric shock protection device according to claim 1, wherein: the circuit breaker assembly (4) comprises one or a plurality of circuit breakers QF1, QF2, QF3 and QF4, the circuit breaker assembly (4) is a single-stage protector, and the circuit breaker assembly (4) further comprises an LED stroboscopic alarm lamp.

5. The fire and electric shock protection device according to claim 4, wherein: the relay assembly (5) comprises one or more of a relay KA1, a relay KA2, a relay KA3 and a relay KA4, wherein the relay KA1, the relay KA2, the relay KA3 and the relay KA4 are 32A current-limiting relays or 16A current-limiting relays.

6. The fire and electric shock protection device according to claim 5, wherein: the load assembly (10) comprises one or several of an air conditioner (6), a kitchen (7), a lighting (8) and a socket (9).

7. The fire and electric shock protection device according to claim 6, wherein: the circuit breaker assembly (4) comprises the same number of circuit breakers, relays and loads, and the heat dissipation system (13) comprises one or two of heat dissipation fans and heat dissipation fins _。