CN207835111U - A kind of condensed discharge equipment of high voltage low current electric energy - Google Patents

Abstract

The utility model discloses a high-voltage and low-current electric energy storage and discharge device, which comprises a high-voltage and low-current electric energy collection module, an electric storage device and a load interface circuit, and a discharge control device is also arranged between the electric storage device and the load interface circuit. circuit, the discharge control circuit includes a switching element and a voltage value trigger discharge module; the trigger input terminal of the voltage value trigger discharge module is connected to the voltage output terminal VCC of the power storage device, and the trigger output terminal of the voltage value trigger discharge module is connected to The control terminal of the switch element, the conduction input end of the switch element is connected to the voltage output end of the power storage device, and the conduction output end of the switch element is connected to the input end of the load interface circuit. Beneficial effects: the electric energy of high voltage and low current is stored first, and when the electric energy is stored to a certain capacity, the electric energy is released for power supply. The released signal is the voltage value of the electric storage device, and the discharge switch is directly turned on after the value is higher than the set value. supply power to the load.

Description

A high-voltage low-current electric energy storage and discharge device

technical field

The utility model relates to the technical field of electric storage and discharge devices, in particular to a high-voltage low-current electric energy storage and discharge device.

Background technique

Electric energy with high voltage and low current is very common in daily life. For example, the electricity generated by friction has a very high voltage and low current. Continuous power supply.

Therefore, it is necessary to store this kind of high-voltage and low-current electric energy with the electric storage device first, and then use the electric storage device to discharge and use it. However, there are also difficulties in how to effectively release the electric energy in the electric storage device during the discharge process: First, the electric storage The capacity of the equipment is limited. When the rated capacity is reached, the stored electric energy needs to be released, otherwise the storage equipment will be damaged; moreover, the voltage of the storage equipment will weaken after the electricity is released to a certain extent, which will reduce the output efficiency. How to make the low voltage To maintain a better power supply capability, there is no good solution in the prior art.

Utility model content

The purpose of this utility model is to provide a high-voltage low-current electric energy storage and discharge device, so that the high-voltage low-current electric energy is stored first, and when the electric energy is stored to a certain capacity, the electric energy is released for power supply, and the released signal is electric storage When the voltage value of the device is higher than the set value, the discharge switch is directly turned on to supply power to the load.

In order to achieve the above object, the concrete technical scheme that the utility model adopts is as follows:

An electric storage and discharge device for high-voltage and low-current electric energy, comprising a high-voltage and low-current electric energy collection module, an electric storage device, and a load interface circuit, the electric storage device is connected to the collection module to store electric energy, and the electric storage device is connected to the load interface The circuit supplies power for it, and a discharge control circuit is also set between the storage device and the load interface circuit, and the discharge control circuit includes:

The switching element is controlled by the circuit voltage change to turn on and off the load interface circuit. The switching element can preferably be an equivalent switching device such as a triode, a MOS tube, etc. that does not require an additional power supply;

The voltage value triggers the discharge module, and when the storage voltage of the power storage device is higher than the set voltage value, the voltage value triggers the discharge module to generate a potential difference, and the potential difference controls the conduction of the switching element, so that the power storage device supplies power to the load interface circuit;

The trigger input terminal of the voltage trigger discharge module is connected to the voltage output terminal VCC of the power storage device, the trigger output terminal of the voltage value trigger discharge module is connected to the control terminal of the switch element, and the conduction input terminal of the switch element is connected to the storage device. The voltage output end of the electrical device, and the conduction output end of the switching element is connected to the input end of the load interface circuit.

Through the above design, the power storage device stores the high-voltage and low-current electric energy collected by the acquisition module. When the voltage value of the power storage device is higher than the voltage value set by the voltage value trigger discharge module, the voltage value triggers discharge The module generates a potential difference, the switching element is turned on by the change of the potential difference, and the power storage device supplies power to the load interface circuit. As long as the power in the power storage device is sufficient, it can continuously supply power to the load, avoiding the intermittent defect of high voltage and low current power itself.

To further describe, the discharge control circuit also includes a low-voltage continuous discharge module: when the electric storage device is discharged to a voltage lower than the set voltage value, the low-voltage continuous discharge module continuously converts the potential difference to control the switching element to conduct, so that the electric storage device Continuous output;

The trigger input terminal of the low-voltage continuous discharge module is connected to the conduction output terminal of the switch element, and the trigger output terminal of the low-voltage continuous discharge module is connected to the control terminal of the switch element.

The capacity of the power storage device is limited, and it is difficult to continue to turn on the switching element after the power is released until the voltage value is lower than the set voltage value of the trigger discharge module. However, there is still a lot of power available in the power storage device. Through the above design, the controlled potential difference of the switching element is generated by the low-voltage continuous discharge module, so that the switching element continues to conduct until the low-voltage continuous discharge module is difficult to generate a potential difference. At this time, the storage capacity of the power storage device is also discharged. Therefore, the electric energy stored in the electric storage device has a higher utilization rate.

To further describe, the switching element is a P-type MOS transistor Q1, the gate of the P-type MOS transistor Q1 is connected to the voltage output terminal VCC of the power storage device, and the source of the P-type MOS transistor Q1 is connected to the voltage output terminal of the power storage device. The voltage output terminal VCC, the drain of the P-type MOS transistor Q1 is connected to the positive voltage terminal of the load interface circuit.

Through the above design, as long as the potential difference between the gate and source of the P-type MOS transistor Q1 reaches the set value, its source and drain will be directly turned on, realizing the purpose of the potential difference controlling the conduction of the switching element, and at the same time, the MOS transistor Q1 No additional power supply is required, and the effect is better than that of a triode.

To further describe, the voltage trigger discharge module is provided with a piezoresistor R1, and the breakdown voltage value of the piezoresistor R1 is the set voltage value of the voltage trigger discharge module;

One end of the piezoresistor R1 is connected to the voltage output terminal VCC of the power storage device, and the other end is connected to the base of the second triode Q2, and the collector of the second triode Q2 is connected in series with the third resistor R3 and then connected to The voltage output terminal VCC of the power storage device, the collector of the second triode Q2 is also connected to the cathode of the second diode D2, and the anode of the second diode D2 is connected to the control terminal of the switching element, so The emitter of the second transistor Q2 is grounded.

Through the above design, when the voltage value of the power storage device cannot break through the piezoresistor R1, the base of the second transistor Q2 is at a low potential, and the second transistor Q2 is disconnected, and its collector is at a high potential. When the second diode D2 is not conducting, the control terminal of the switching element and the conducting input terminal are at high potential at the same time, and the switching element is not conducting; The base of the second triode Q2 becomes a high potential, the collector and emitter of the second triode Q2 are turned on, and the collector changes from a high potential to a low potential, so that the second diode D2 is turned on, The control end of the switch element is turned from a high potential to a low potential, and a potential difference is formed with the conduction input end, so that the conduction input end and the conduction output end of the switch element are turned on, so as to realize the power supply purpose of the power storage device.

To further describe, the low-voltage continuous discharge module is provided with a voltage comparator, the non-inverting input terminal of the voltage comparator is connected to the conduction output terminal of the switching element, and the inverting input terminal of the voltage comparator is connected to the reference voltage, so The output terminal of the voltage comparator is connected to the base of the third transistor Q3, the collector of the third transistor Q3 is connected to the voltage output terminal VCC of the power storage device, and the collector of the third transistor Q3 The cathode of the third diode D3 is also connected, the anode of the third diode D3 is connected to the control terminal of the switching element, and the emitter of the third transistor Q3 is grounded.

Through the above design, when the switching element is not turned on, the positive-phase input terminal and the negative-phase input terminal of the voltage comparator are at low potential at the same time, then its output terminal outputs a low level, the third transistor Q3 is disconnected, and the third three The collector of the pole tube Q3 is at a high potential, and both ends of the third diode D3 are at a high potential and are not conducting; when the switching element is turned on, the positive phase input terminal of the voltage comparator obtains a voltage at a high potential, and the reverse phase The input terminal continues to maintain the low potential of the reference voltage, then the voltage comparator outputs a high level to turn on the third transistor Q3, and the collector of the third transistor Q3 drops to a low potential, so that the third diode D3 is turned on, so that the control terminal of the switch element keeps the low potential, and the switch element is turned on continuously. Therefore, once the switching element is turned on, even if the voltage value of the power storage device is lower than the set voltage value of the trigger discharge module, the low-voltage continuous discharge module can continue to work until the voltage of the power storage device is difficult to maintain low-voltage continuous discharge The switching element is only disconnected when the module is working, and at this time, the electric energy of the electric storage device is exhausted and needs to be recharged, which greatly improves the utilization rate of electric energy of the electric storage device.

To further describe, the reference voltage is provided by a reference voltage chip, the input pin of the reference voltage chip is connected to the conduction output end of the switching element, and the output pin of the reference voltage chip is connected to the inverting input end of the voltage comparator, so The ground pin of the reference voltage chip is grounded.

Through the above design, when the switching element is not turned on, the output pin of the reference voltage chip is at a low potential. The voltage of the inverting input terminal will not be higher than the voltage of the non-inverting input terminal, and the voltage of the inverting input terminal of the voltage comparator is lower than the voltage of the non-inverting input terminal when the switching element is turned on, so that the low-voltage continuous discharge module works.

To further describe, the load interface circuit includes a load interface and a working signal light module, the positive voltage terminal of the working signal light module is connected to the conduction output terminal of the switching element, and the negative voltage terminal of the working signal light module is grounded.

Furthermore, the working signal lamp module is provided with a light emitting diode D4, the anode of the light emitting diode D4 is connected in series with the ninth resistor R9 and connected to the conduction output end of the switching element, and the cathode of the light emitting diode D4 is grounded.

Through the above design, as long as the switch element is turned on, the working signal light module can be powered on to work, and the light-emitting diode D4 is powered on to provide a signal light indication for the load interface circuit to work.

To further describe, a rectification module is further provided between the acquisition module and the power storage device, and the rectification module is a rectification bridge;

The rectification input terminal group of the rectification bridge is connected to the output terminal group of the acquisition module, and the rectification output terminal group of the rectification bridge is connected to the positive and negative poles of the power storage device.

Through the above design, when the voltage output by the acquisition module is alternating current, the rectification module can rectify the alternating current into direct current, so that subsequent circuits can work normally.

Furthermore, the power storage device is a storage capacitor C1, one end of the storage capacitor C1 is connected to the output terminal of the acquisition module, and the other end is grounded.

The preferred capacitance value of the storage capacitor C1 is 1 μF-200 μF.

The beneficial effects of the utility model: the power storage device stores the high-voltage and low-current electric energy collected by the acquisition module, and when the voltage value of the power storage device is higher than the voltage value set by the trigger discharge module, the voltage The value triggers the discharge module to generate a potential difference, the switching element is turned on by the change of the potential difference, and the power storage device supplies power to the load interface circuit. As long as the power in the power storage device is sufficient, it can continuously supply power to the load, avoiding the intermittent high-voltage and low-current power itself Defects;

The capacity of the power storage device is limited, and it is difficult to continue to turn on the switching element after the power is released until the voltage value is lower than the set voltage value of the trigger discharge module. However, there is still a lot of power available in the power storage device. Through the above design, the controlled potential difference of the switching element is generated by the low-voltage continuous discharge module, so that the switching element continues to conduct until the low-voltage continuous discharge module is difficult to generate a potential difference. At this time, the storage capacity of the power storage device is also discharged. Therefore, the electric energy stored in the electric storage device has a higher utilization rate.

Description of drawings

Fig. 1 is a structural representation of the utility model

Fig. 2 is the circuit diagram of embodiment

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail:

As shown in Figure 1, a high-voltage low-current electric energy storage and discharge device includes a high-voltage low-current electric energy collection module, an electric storage device and a load interface circuit, the electric storage device is connected to the collection module to store electric energy, and the The power storage device is connected to the load interface circuit to supply power for it, and a discharge control circuit is also set between the power storage device and the load interface circuit, and the discharge control circuit includes:

The switching element is controlled by the change of the circuit voltage to turn on and off the load interface circuit;

The voltage value triggers the discharge module, and when the storage voltage of the power storage device is higher than the set voltage value, the voltage value triggers the discharge module to generate a potential difference, and the potential difference controls the conduction of the switching element, so that the power storage device supplies power to the load interface circuit;

Low-voltage continuous discharge module: When the electric storage device is discharged until the voltage value is lower than the set voltage value, the low-voltage continuous discharge module continuously converts the potential difference to control the conduction of the switching element, so that the electric storage device continues to output;

The trigger input terminal of the voltage trigger discharge module is connected to the voltage output terminal VCC of the power storage device, the trigger output terminal of the voltage value trigger discharge module is connected to the control terminal of the switch element, and the conduction input terminal of the switch element is connected to the storage device. The voltage output end of the electrical device, and the conduction output end of the switching element is connected to the input end of the load interface circuit.

The trigger input terminal of the low-voltage continuous discharge module is connected to the conduction output terminal of the switch element, and the trigger output terminal of the low-voltage continuous discharge module is connected to the control terminal of the switch element.

Preferably, the load interface circuit includes a load interface and a working signal lamp module, the positive voltage terminal of the working signal lamp module is connected to the conduction output terminal of the switch element, and the negative voltage terminal of the working signal lamp module is grounded.

Preferably, a rectification module is further provided between the collection module and the power storage device, the rectification input terminal group of the rectification module is connected to the output terminal group of the collection module, and the rectification output terminal group of the rectification bridge is connected to the power storage device. Positive and negative.

As shown in Figure 2, as a preference, the switching element in this embodiment is a P-type MOS transistor Q1, the gate of the P-type MOS transistor Q1 is connected in series with the fourth protection resistor R4 and then connected to the voltage output terminal of the power storage device VCC, the source of the P-type MOS transistor Q1 is connected to the voltage output terminal VCC of the power storage device, and the drain of the P-type MOS transistor Q1 is connected to the positive voltage terminal of the load interface circuit.

The voltage trigger discharge module is provided with a piezoresistor R1, and the breakdown voltage value of the piezoresistor R1 is the set voltage value of the voltage trigger discharge module;

One end of the piezoresistor R1 is connected to the voltage output terminal VCC of the power storage device, and the other end is connected in series with the protection resistor R2 and then connected to the base of the second triode Q2, and the collector of the second triode Q2 is connected in series The third resistor R3 is then connected to the voltage output terminal VCC of the power storage device, the collector of the second triode Q2 is also connected to the cathode of the second diode D2, and the anode of the second diode D2 is connected to the P The gate of the type MOS transistor Q1, the emitter of the second triode Q2 is grounded.

The low-voltage continuous discharge module is provided with a voltage comparator, the non-inverting input terminal of the voltage comparator is connected in series with the fifth protection resistor R5 and then connected to the drain of the P-type MOS transistor Q1, and the inverting input terminal of the voltage comparator Connect the output pin of the reference voltage chip, the input pin of the reference voltage chip is connected to the conduction output end of the switch element, the ground pin of the reference voltage chip is grounded, and the positive pressure input end of the voltage comparator is connected to the P-type MOS tube The drain of Q1, the sixth protection resistor R6 is connected between the positive voltage input terminal and the output terminal of the voltage comparator, and the negative voltage input terminal of the voltage comparator is grounded;

The output end of the voltage comparator is connected in series with the seventh protective resistor R7 and then connected to the base of the third triode Q3, and the collector of the third triode Q3 is connected in series with the eighth protective resistor R8 and connected to the power storage device The voltage output terminal VCC of the third transistor Q3, the collector of the third transistor Q3 is also connected to the cathode of the third diode D3, and the anode of the third diode D3 is connected to the gate of the P-type MOS transistor Q1, so The emitter of the third transistor Q3 is grounded.

The working signal light module is provided with a light emitting diode D4, the anode of the light emitting diode D4 is connected in series with the ninth resistor R9 and then connected to the conduction output end of the switching element, and the cathode of the light emitting diode D4 is grounded.

The rectification module is preferably a rectification bridge composed of 4 diodes.

Preferably, the electricity storage device is an electricity storage capacitor C1, one end of the electricity storage capacitor C1 is connected to the output end of the acquisition module, and the other end is grounded.

Wherein, the storage capacitor C1 preferably has a capacitance of 22 μF.

Working principle of the utility model:

After the acquisition module collects electric energy, it is rectified by the rectifier bridge and then stored by the storage capacitor C1;

When the voltage of the storage capacitor C1 is higher than the breakdown varistor R1, the base of the second triode Q2 changes from a low potential to a high potential, then its collector and emitter conduct, and the collector changes from a high potential to a high potential. becomes a low potential, so that the second diode D2 is turned on, and the gate of the P-type MOS transistor Q1 drops from a high potential to a low potential, and a sufficient potential difference is generated between the gate and the source to make the source and the drain conduct connected, the storage capacitor C1 supplies power to the load interface circuit;

At the same time, after the P-type MOS transistor Q1 is turned on, the positive-phase input terminal of the voltage comparator obtains a voltage at a high potential, while the inverting input terminal continues to maintain a low potential of the reference voltage, and the voltage comparator outputs a high level to make the third triode The transistor Q3 is turned on, and the collector of the third triode Q3 drops from a high potential to a low potential, so that the third diode D3 is turned on, so that the gate of the P-type MOS transistor Q1 keeps a low potential until the storage The capacitor C1 no longer has sufficient voltage to maintain the conduction of the voltage comparator and the third transistor Q3.

Claims (10)

1. A storage and discharge device for high-voltage and low-current electric energy, comprising an acquisition module of high-voltage and low-current electric energy, an electrical storage device and a load interface circuit, the electrical storage device is connected to the acquisition module to store electrical energy, and the electrical storage device is connected to The load interface circuit supplies power for it, and it is characterized in that: a discharge control circuit is also set between the power storage device and the load interface circuit, and the discharge control circuit includes: The switching element is controlled by the change of the circuit voltage to turn on and off the load interface circuit; The voltage value triggers the discharge module, and when the storage voltage of the power storage device is higher than the set voltage value, the voltage value triggers the discharge module to generate a potential difference, and the potential difference controls the conduction of the switching element, so that the power storage device supplies power to the load interface circuit; The trigger input terminal of the voltage trigger discharge module is connected to the voltage output terminal VCC of the power storage device, the trigger output terminal of the voltage value trigger discharge module is connected to the control terminal of the switch element, and the conduction input terminal of the switch element is connected to the storage device. The voltage output end of the electrical device, and the conduction output end of the switching element is connected to the input end of the load interface circuit. 2. A high-voltage and low-current electric energy storage and discharge device according to claim 1, characterized in that: the discharge control circuit also includes a low-voltage continuous discharge module: when the electric storage device discharges to a voltage value lower than the set After the voltage is reached, the low-voltage continuous discharge module continuously converts the potential difference to control the conduction of the switching element, so that the power storage device continues to output; The trigger input terminal of the low-voltage continuous discharge module is connected to the conduction output terminal of the switch element, and the trigger output terminal of the low-voltage continuous discharge module is connected to the control terminal of the switch element. 3. A high-voltage low-current electric energy storage and discharge device according to claim 1, characterized in that: the switching element is a P-type MOS transistor Q1, and the gate of the P-type MOS transistor Q1 is connected to a power storage device. The voltage output terminal VCC of the device, the source of the P-type MOS transistor Q1 is connected to the voltage output terminal VCC of the power storage device, and the drain of the P-type MOS transistor Q1 is connected to the positive voltage terminal of the load interface circuit. 4. A high-voltage and low-current electric energy storage and discharge device according to claim 1, characterized in that: said voltage trigger discharge module is provided with a piezoresistor R1, and the breakdown voltage of said piezoresistor R1 The value is the set voltage value of the trigger discharge module of the voltage value; One end of the piezoresistor R1 is connected to the voltage output terminal VCC of the power storage device, and the other end is connected to the base of the second triode Q2, and the collector of the second triode Q2 is connected in series with the third resistor R3 and then connected to The voltage output terminal VCC of the power storage device, the collector of the second triode Q2 is also connected to the cathode of the second diode D2, and the anode of the second diode D2 is connected to the control terminal of the switching element, so The emitter of the second transistor Q2 is grounded. 5. A high-voltage low-current electric energy storage and discharge device according to claim 2, characterized in that: the low-voltage continuous discharge module is provided with a voltage comparator, and the positive phase input terminal of the voltage comparator is connected to a switch The conduction output terminal of the element, the inverting input terminal of the voltage comparator is connected to the reference voltage, the output terminal of the voltage comparator is connected to the base of the third transistor Q3, and the set of the third transistor Q3 The electrode is connected to the voltage output terminal VCC of the power storage device, the collector of the third triode Q3 is also connected to the cathode of the third diode D3, and the anode of the third diode D3 is connected to the control terminal of the switching element , the emitter of the third transistor Q3 is grounded. 6. A high-voltage low-current electric energy storage and discharge device according to claim 5, characterized in that: the reference voltage is provided by a reference voltage chip, and the input pin of the reference voltage chip is connected to the conduction of the switching element The output terminal, the output pin of the reference voltage chip is connected to the inverting input terminal of the voltage comparator, and the ground pin of the reference voltage chip is grounded. 7. A high-voltage low-current electric energy storage and discharge device according to claim 1, wherein the load interface circuit includes a load interface and a working signal light module, and the positive voltage terminal of the working signal light module is connected to a switch The conduction output end of the element, and the negative voltage end of the working signal light module are grounded. 8. A high-voltage low-current electric energy storage and discharge device according to claim 7, characterized in that: said working signal light module is provided with a light-emitting diode D4, and the anode of said light-emitting diode D4 is connected in series with a ninth resistor R9 Afterwards, the conduction output terminal of the switching element is connected, and the cathode of the light-emitting diode D4 is grounded. 9. A high-voltage, low-current electric energy storage and discharge device according to claim 1, characterized in that: a rectification module is further provided between the acquisition module and the storage device, and the rectification module is a rectification bridge; The rectification input terminal group of the rectification bridge is connected to the output terminal group of the acquisition module, and the rectification output terminal group of the rectification bridge is connected to the positive and negative poles of the power storage device. 10. A storage and discharge device for high-voltage and low-current electric energy according to any one of claims 1-9, characterized in that: the storage device is a storage capacitor C1, and one end of the storage capacitor C1 Connect the output end of the acquisition module, and the other end is grounded; The capacitance of the storage capacitor C1 is 1 μF-200 μF.