CN219576631U

CN219576631U - Power-losing energy storage module

Info

Publication number: CN219576631U
Application number: CN202223450862.3U
Authority: CN
Inventors: 杨军; 张通; 赵海峰
Original assignee: Hangzhou Zhijiang Switchgear Stock Co Ltd
Current assignee: Hangzhou Zhijiang Switchgear Stock Co Ltd
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2023-08-22
Anticipated expiration: 2032-12-23

Abstract

The utility model discloses a power-losing energy storage module, which comprises a power supply, wherein the power supply output end of the power supply is electrically connected with an energy storage loop for storing electric energy when a circuit is normal, a test loop for judging faults of the power supply when the circuit is normal and a normal electric tripping loop, the output end of the energy storage loop is electrically connected with a discharge tripping loop for breaking the circuit when the power supply is abnormal, and the signal output end of the test loop is electrically connected with the signal receiving end of the energy storage loop. The utility model solves the problem that the traditional medium-voltage vacuum circuit breaker is easy to damage during working in the prior art. The utility model has the advantages of small volume, simple installation, low cost, safety, reliability and the like.

Description

Power-losing energy storage module

Technical Field

The present utility model relates to the field of electrical energy storage units, and more particularly to a power loss energy storage module.

Background

At present, the Chinese patent net discloses a high-voltage vacuum breaker driving device, publication No. CN2089656, primary crank arms 3 with the same number are fixedly arranged at the corresponding positions of a transmission shaft 2 and each vacuum arc-extinguishing chamber, each primary crank arm 3, an insulating pull rod 4, a secondary crank arm 5 and a support 6 are combined with a crank 1 which is fixedly arranged on the transmission shaft 2 and extends out of one end of a frame 10 to form a group of boosting and decelerating four-bar transmission mechanism, and an elastic part 9 is arranged between the frame 10 and the upper end face of a long arm of the primary crank arm 3; the elastic part may be made of rubber or other elastic material.

The medium voltage vacuum circuit breaker is commonly used in a power supply system, is a main power control device of a power plant and a power transformation station, and can cut off and switch on a line and idle and load currents of various electrical devices when the system is in normal operation.

When a fault occurs in a power supply system line, the line voltage can be greatly reduced or even vanished in a short time, and the line voltage can damage the line and electrical equipment. For example, motor fatigue and stalling, thereby generating overcurrent which is several times of rated current, and burning out the motor; when the voltage is recovered, the voltage of the motor is greatly reduced by the self-starting of a large number of motors, so that the damage is caused.

Disclosure of Invention

The utility model aims to solve the problem that the traditional medium-voltage vacuum circuit breaker is easy to damage during working in the prior art, and provides a power-loss energy storage module with the advantage of difficult damage.

The utility model discloses a power-losing energy storage module, which comprises a power supply, wherein the power supply output end of the power supply is electrically connected with an energy storage loop for storing electric energy when a circuit is normal, a test loop for judging faults of the power supply when the circuit is normal and a normal electric tripping loop, the output end of the energy storage loop is electrically connected with a discharge tripping loop for breaking the circuit when the power supply is abnormal, and the signal output end of the test loop is electrically connected with the signal receiving end of the energy storage loop.

According to the utility model, on the premise of not changing the original functions of the circuit breaker, the energy storage loop and the discharge tripping loop are arranged, so that the medium-voltage vacuum circuit breaker can be automatically opened when the voltage loss (power failure) phenomenon occurs in the power supply circuit, the power supply is cut off, and the occurrence of fault hazard is avoided.

Preferably, the power supply includes an input voltage U0 and a ground GND.

Preferably, the energy storage loop comprises a rectifier bridge U1, a resistor R1, a diode D1, a capacitor C1 and a button switch SB1, wherein a pin 1 of the rectifier bridge U1 is electrically connected with an input voltage U0, a pin 3 of the rectifier bridge U1 is electrically connected with one end of the resistor R1, the other end of the resistor R1 is electrically connected with the anode of the diode D1, the cathode of the diode D1 is electrically connected with one end of a normally closed section of the button switch SB1, the other end of the normally closed section of the button switch SB1 is electrically connected with one end of the capacitor C1, and the other end of the capacitor C1 is electrically connected with a ground wire GND.

Preferably, the test loop comprises a normally open section of the push-button switch SB1, a light emitting diode LED and a piezoresistor RV2, one end of the capacitor C1 is electrically connected with one end of the normally open section of the push-button switch SB1 and one end of the piezoresistor RV2, the other end of the capacitor C1 is electrically connected with the other end of the piezoresistor RV2 and the negative electrode of the light emitting diode LED, and the other end of the normally open section of the push-button switch SB1 is electrically connected with the positive electrode of the light emitting diode LED.

The normal electric tripping circuit comprises an auxiliary switch 1KA, an auxiliary switch 2KA, a relay K1 and a tripper QF, one end of the auxiliary switch 1KA is electrically connected with one end of the auxiliary switch 2KA and 4 pins of a rectifier bridge U1 respectively, the other end of the auxiliary switch 1KA is electrically connected with the other end of the auxiliary switch 2KA and 5 pins of the relay K1 respectively, 6 pins of the relay K1 are electrically connected with 4 pins of the relay K1 and one end of the tripper QF respectively, the other end of the tripper QF is electrically connected with the negative electrode of a light emitting diode LED, the other end of a piezoresistor RV2, 2 pins of the relay K1 and 2 pins of the rectifier bridge U1 respectively, 1 pin of the relay K1 is electrically connected with 3 pins of the rectifier bridge U1, 3 pins of the relay K1 is electrically connected with the negative electrode of a diode D1, wherein the tripper QF, a capacitor C1, a normally closed section of the button switch SB1 and the relay K1 form a discharging circuit.

The working principle of the utility model is as follows:

when the main circuit is not connected to the power supply, the relay K1 is in an initial state.

When the main circuit is connected to a power supply to work normally, the power supply is powered on, the relay K1 acts, the contacts are switched, the capacitor C1 of the energy storage loop starts to charge, the light emitting diode LED emits light normally, and the release QF does not act; the rectifier bridge is used for improving stable working voltage of the circuit, and the resistor R1 and the diode D1 are used for preventing the capacitor C1 from being broken down by larger current and improving line stability.

After the capacitor C1 is charged, the push button switch SB1 is pressed, and the LED is turned off; the user can further have the duration of the process of turning off the light emitting diode LED to determine whether the capacitor C1 is intact.

After the C1 charging process is finished, when the voltage loss phenomenon suddenly occurs, the power supply is powered off, the relay K1 is restored to an initial state, the capacitor C1 of the energy storage loop begins to discharge, the discharging tripping loop is started, and the tripper QF acts at the moment, so that the circuit breaker acts, and the voltage loss protection effect is achieved.

The utility model has the following beneficial effects:

1. when the voltage loss (power failure) phenomenon occurs in the power supply loop, the utility model can effectively help the medium-voltage circuit breaker to cut off the power supply and prevent the occurrence of harm.

2. The utility model has the advantages of small volume, simple and convenient installation, low cost, safety, reliability and easy realization.

Drawings

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

Detailed Description

The technical scheme of the utility model is further specifically described below through examples and with reference to the accompanying drawings.

Examples: according to the power-losing energy storage module of the embodiment, further description is made according to the attached drawing 1, the power-losing energy storage module comprises a power supply source, wherein a power output end of the power supply source is electrically connected with an energy storage loop used for storing electric energy when a circuit is normal, a test loop used for judging faults of the power supply source when the circuit is normal and a normal electric tripping loop, an output end of the energy storage loop is electrically connected with a discharge tripping loop used for breaking a circuit when the power supply source is abnormal, and a signal output end of the test loop is electrically connected with a signal receiving end of the energy storage loop.

The power supply comprises an input voltage U0 and a ground GND.

The energy storage loop include rectifier bridge U1, resistance R1, diode D1, electric capacity C1 and button switch SB1, rectifier bridge U1's 1 pin and input voltage U0 electric connection, rectifier bridge U1's 3 pin and resistance R1's one end electric connection, resistance R1's the other end and diode D1's positive pole electric connection, diode D1's negative pole and button switch SB 1's normally closed section one end electric connection, button switch SB 1's normally closed section other end and electric capacity C1's one end electric connection, electric capacity C1's the other end and ground wire GND electric connection.

The test loop comprises a normally-open section of the button switch SB1, a light-emitting diode LED and a piezoresistor RV2, one end of the capacitor C1 is electrically connected with one end of the normally-open section of the button switch SB1 and one end of the piezoresistor RV2 respectively, the other end of the capacitor C1 is electrically connected with the other end of the piezoresistor RV2 and the negative electrode of the light-emitting diode LED respectively, and the other end of the normally-open section of the button switch SB1 is electrically connected with the positive electrode of the light-emitting diode LED.

The above embodiments are merely examples of the present utility model, but the present utility model is not limited thereto, and any changes or modifications made by those skilled in the art are included in the scope of the present utility model.

Claims

1. The utility model provides a power-losing energy storage module, includes power supply, characterized by, power supply's power output end be used for carrying out the energy storage return circuit that electric energy stored when the circuit is normal respectively electric connection, be used for carrying out the test return circuit and the normal electric tripping return circuit of trouble judgement to power supply when the circuit is normal, power supply's output electric connection have be used for carrying out the discharge tripping return circuit that opens circuit when unusual in power supply, the signal output part of test return circuit and the signal receiving part electric connection of energy storage return circuit.

2. The power loss and energy storage module according to claim 1, wherein the power supply includes an input voltage U0 and a ground GND.

3. The power-losing energy storage module according to claim 2, wherein the energy storage loop comprises a rectifier bridge U1, a resistor R1, a diode D1, a capacitor C1 and a button switch SB1, wherein a pin 1 of the rectifier bridge U1 is electrically connected with an input voltage U0, a pin 3 of the rectifier bridge U1 is electrically connected with one end of the resistor R1, the other end of the resistor R1 is electrically connected with an anode of the diode D1, a cathode of the diode D1 is electrically connected with one end of a normally closed section of the button switch SB1, the other end of the normally closed section of the button switch SB1 is electrically connected with one end of the capacitor C1, and the other end of the capacitor C1 is electrically connected with a ground wire GND.

4. The power-losing energy storage module according to claim 3, wherein the test circuit comprises a normally-open section of the push-button switch SB1, a light-emitting diode LED and a piezoresistor RV2, one end of the capacitor C1 is electrically connected with one end of the normally-open section of the push-button switch SB1 and one end of the piezoresistor RV2, the other end of the capacitor C1 is electrically connected with the other end of the piezoresistor RV2 and a negative electrode of the light-emitting diode LED, and the other end of the normally-open section of the push-button switch SB1 is electrically connected with a positive electrode of the light-emitting diode LED.

5. The power-losing energy storage module according to claim 4, wherein the normal electric tripping circuit comprises an auxiliary switch 1KA, an auxiliary switch 2KA, a relay K1 and a tripper QF, one end of the auxiliary switch 1KA is electrically connected with one end of the auxiliary switch 2KA and 4 pins of a rectifier bridge U1 respectively, the other end of the auxiliary switch 1KA is electrically connected with the other end of the auxiliary switch 2KA and 5 pins of the relay K1 respectively, 6 pins of the relay K1 are electrically connected with 4 pins of the relay K1 and one end of the tripper QF respectively, the other end of the tripper QF is electrically connected with the negative electrode of a light emitting diode LED, the other end of a piezoresistor RV2, 2 pins of the relay K1 and 2 pins of the rectifier bridge U1 respectively, 1 pin of the relay K1 is electrically connected with 3 pins of the rectifier bridge U1, and 3 pins of the relay K1 are electrically connected with the negative electrode of a diode D1 respectively, wherein the tripper K1, a normally-closed section of the button switch K1 and the tripper K1 form a discharging circuit.