Energy storage discharge circuit

Abstract

The application provides an energy storage discharge circuit, and relates to the technical field of energy storage discharge, which comprises a power supply input interface, a first current limiting component, a first switching device, a first electric control device, a start-stop control transmission device and an energy storage component; the start-stop control transmission device is connected with the control end of the first switching device; the first port of the first switching device is externally connected with a direct current power supply, and the output end is connected with the control system of the first electric control device; the power supply input interface is connected with the input end of the first current limiting component, the output end of the first current limiting component is connected with the first port of the controlled system of the first electric control device, and the second port of the controlled system of the first electric control device is connected with the port of the energy storage component; the application can avoid the situation that the voltage at both ends of the capacitor suddenly changes when the capacitor directly stores energy in the energy storage discharge circuit, avoids the damage of the capacitor, and improves the reliability of the energy storage discharge circuit.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy storage discharge, in particular to an energy storage discharge circuit. BACKGROUND

[0002] In order to meet the power demand of high-power pulse laser power supply, the energy storage discharge circuit in the prior art usually stores energy by using a capacitor, mainly by directly connecting the capacitor to the power supply to realize the process of storing energy by the capacitor. However, in the process of directly storing energy by the capacitor through the power supply, the charging start time of the energy storage discharge circuit cannot be accurately controlled, and in the process of directly storing energy by the capacitor, the voltage across the capacitor is prone to sudden change, which can easily cause damage to the capacitor and thus seriously reduce the reliability of the energy storage discharge circuit. SUMMARY

[0003] The embodiments of the present application provide an energy storage discharge circuit to solve the technical problem that the voltage across the capacitor is prone to sudden change in the charging process of the existing energy storage discharge circuit, thereby reducing the reliability of the energy storage discharge circuit.

[0004] In order to achieve the above-mentioned purpose, the technical solutions adopted by the embodiments of the present application are as follows:

[0005] In a first aspect, the embodiments of the present application provide an energy storage discharge circuit, comprising: a power supply input interface, a first current limiting component, a first switching device, a first electrical control device, a start-stop control transmission device and an energy storage component; wherein the first current limiting component is composed of a resistor; the energy storage component is used for storing electrical energy, and the energy storage component is composed of a capacitor;

[0006] The start-stop control transmission device is connected to the control end of the first switching device; the start-stop control transmission device is used for outputting a low-level signal to the control end of the first switching device when receiving a signal to start charging, so as to make the first switching device conductive;

[0007] The first port of the first switching device is externally connected to a direct current power supply, and the output end of the first switching device is connected to the control system of the first electrical control device;

[0008] The first switching device is used for outputting a high-level signal to the control system of the first electrical control device when receiving a low-level signal at the control end;

[0009] The power supply input interface is connected to the input end of the first current limiting component, the output end of the first current limiting component is connected to the first port of the controlled system of the first electrical control device, and the second port of the controlled system of the first electrical control device is connected to the port of the energy storage component;

[0010] The first electric control device is used for controlling the first port and the second port of the controlled system to be conductive when the control system receives a high level signal, so that the power input interface charges the energy storage component through the first current limiting component and the first electric control device.

[0011] Further, the embodiment of the present application provides a first possible implementation manner of the first aspect, wherein the energy storage discharge circuit further comprises a sampling component, a voltage comparator, a second switch device and an output interface; wherein the sampling component comprises at least one resistor;

[0012] The sampling component is connected with the inverting input end of the voltage comparator; and the sampling component is used for detecting the voltage of the energy storage component.

[0013] The start-stop control transmission device is connected with the non-inverting input end of the voltage comparator; and the start-stop control transmission device is used for outputting a low level signal to the non-inverting input end of the voltage comparator when the energy storage discharge circuit is charging.

[0014] The output end of the voltage comparator is connected with the control end of the second switch device; the input end of the second switch device is connected with the power input interface; the output end of the second switch device is connected with the energy storage component; and the output end of the energy storage component is connected with the output interface.

[0015] The voltage comparator is used for triggering the input end and the output end of the second switch device to be conductive when the voltage of the energy storage component received by the inverting input end is greater than the low level signal of the non-inverting input end, so that the power input interface charges the energy storage component through the second switch device.

[0016] Further, the embodiment of the present application provides a second possible implementation manner of the first aspect, wherein the energy storage discharge circuit further comprises a second current limiting component; wherein the second current limiting component is composed of a resistor.

[0017] The input end of the second current limiting component is connected with the third port of the controlled system of the first electric control device; and the output end of the second current limiting component is grounded.

[0018] The start-stop control transmission device is used for outputting a high level signal to the control end of the first switch device and the non-inverting input end of the voltage comparator when the energy storage discharge circuit is discharging.

[0019] The first switch device is used for resuming the off state when the control end receives a high level signal, so that the control system of the first electric control device receives a low level signal, triggering the second port and the third port of the controlled system of the first electric control device to be conductive, and making the energy storage component release electric energy to the second current limiting component through the first electric control device;

[0020] The voltage comparator is used for triggering the second switch device to resume the off state when the non-inverting input end receives a high level signal.

[0021] Further, the embodiment of the present application provides a third possible implementation manner of the first aspect, wherein the energy storage discharge circuit further comprises a first optoelectronic coupler, a second electric control device and a third switch device.

[0022] The output end of the voltage comparator is connected with the control end of the third switch device, the first port of the third switch device is externally connected with a direct current power supply, and the output end of the third switch device is connected with the control system of the second electric control device.

[0023] The voltage comparator is used for outputting a low level signal to the control end of the third switch device when the voltage of the energy storage component received by the inverting input end is greater than the low level signal of the non-inverting input end, and the third switch device is used for outputting a high level signal to the control system of the second electric control device when the control end receives the low level signal.

[0024] The first port of the controlled system in the second electric control device is connected with the negative electrode of the light emitting diode in the first optoelectronic coupler, and the second port of the controlled system in the second electric control device is grounded; the positive electrode of the light emitting diode in the first optoelectronic coupler is connected with the second port of the first electric control device, the emitter of the photosensitive triode in the first optoelectronic coupler is externally connected with a direct current power supply, and the collector of the photosensitive triode in the first optoelectronic coupler is connected with the control end of the second switch device.

[0025] The second electric control device is used for controlling the first port and the second port of the controlled system to be conductive when the control system receives a high level signal, so that the light emitting diode of the first optoelectronic coupler is conductive.

[0026] The first optoelectronic coupler is used for outputting a high level signal to the control end of the second switch device through the collector of the photosensitive triode when the light emitting diode is conductive, so as to trigger the input end and the output end of the second switch device to be conductive.

[0027] Further, the embodiment of the present application provides a fourth possible implementation manner of the first aspect, wherein the energy storage discharge circuit further comprises a second optoelectronic coupler.

[0028] The anode of the light-emitting diode in the second optocoupler is connected with the collector of the phototriode in the first optocoupler, the cathode of the light-emitting diode in the second optocoupler is grounded, the collector of the phototriode in the second optocoupler is connected with the port of the energy storage component, and the emitter of the phototriode in the second optocoupler is connected with the control end of the second switching device.

[0029] The phototriode in the first optocoupler is configured to output a high-level signal to the anode of the light-emitting diode in the second optocoupler when the phototriode is turned on, so as to turn on the light-emitting diode in the second optocoupler.

[0030] The second optocoupler is configured to trigger the phototriode to be turned on when the light-emitting diode is turned on, so as to trigger the input end and the output end of the second switching device to be turned on.

[0031] Further, the embodiment of the present application provides a fifth possible implementation manner of the first aspect, wherein the energy storage discharge circuit further comprises a fourth switching device and a state transmission device.

[0032] The first port of the fourth switching device is grounded, and the control end of the fourth switching device is connected with the collector of the phototriode in the first optocoupler.

[0033] The phototriode in the first optocoupler is configured to output a high-level signal to the control end of the fourth switching device when the phototriode is turned on, so as to trigger the fourth switching device to be turned on.

[0034] The output end of the fourth switching device is connected with the state transmission device, and the state transmission device is configured to output a signal indicating that the energy storage of the energy storage component is completed to an external control system board when the fourth switching device is turned on.

[0035] Further, the embodiment of the present application provides a sixth possible implementation manner of the first aspect, wherein the energy storage discharge circuit further comprises a filter capacitor.

[0036] The filter capacitor is arranged on a connection line between the power supply input interface and the input end of the first current limiting component.

[0037] Further, the embodiment of the present application provides a seventh possible implementation manner of the first aspect, wherein the energy storage discharge circuit further comprises a fuse and a voltage-dependent resistor.

[0038] The fuse and the voltage-dependent resistor are arranged on the connection line between the power supply input interface and the input end of the first current limiting component, and are connected in parallel with the filter capacitor.

[0039] Further, the embodiment of the present application provides an eighth possible implementation manner of the first aspect, wherein the energy storage discharge circuit further comprises a power-off holding capacitor.

[0040] One end of the power-off holding capacitor is connected with the power supply input interface, and the other end is grounded; and the power-off holding capacitor is used for storing voltage when the energy storage component is charged.

[0041] Further, the embodiment of the present application provides a ninth possible implementation manner of the first aspect, wherein the energy storage discharge circuit further comprises an auxiliary power supply output interface.

[0042] One end of the auxiliary power supply output interface is connected with the power-off holding capacitor; and the other end of the auxiliary power supply output interface is used for externally connecting an auxiliary power supply.

[0043] The power-off holding capacitor is further used for providing delay power supply for the externally connected auxiliary power supply through the auxiliary power supply output interface when the energy storage component releases electric energy.

[0044] The embodiment of the present application provides a kind of energy storage discharge circuit, which includes power supply input interface, first current-limiting component, first switching device, first electric control device, start-stop control transmission device and energy storage component;Wherein, first current-limiting component at least includes one resistance;Energy storage component is used to store electric energy, and energy storage component at least includes one capacitor;Start-stop control transmission device is connected with the control end of first switching device;Start-stop control transmission device is used to output low level signal to the control end of first switching device when receiving the signal of starting charging;The first port of first switching device is externally connected with DC power supply, and the output end of first switching device is connected with the control system of first electric control device;First switching device is used to output high level signal to the control system of first electric control device when receiving low level signal in control end;Power supply input interface is connected with the input end of first current-limiting component, the output end of first current-limiting component is connected with the first port of controlled system of first electric control device, and the second port of controlled system of first electric control device is connected with the port of energy storage component;First electric control device is used to control the first port and the second port of controlled system to be conductive when the control system receives high level signal, so that power supply input interface charges energy storage component through first current-limiting component and first electric control device.The present application is charged when energy storage component needs to be charged, and low level signal is output to the control end of first switching device by start-stop control transmission device, so that first switching device is turned on;First switching device is used to output high level signal to the control system of first electric control device through output end when being turned on, so that the first port and the second port of controlled system of first electric control device are turned on, so that power supply input interface charges energy storage component through first current-limiting component and first electric control device.Only when low level signal is output by start-stop control transmission device, energy storage component can be charged, the starting moment of charging can be accurately controlled, and by setting current-limiting resistance to limit the current size in charging circuit, the situation that the voltage across energy storage component is suddenly changed in the process of charging is avoided, the capacitor in energy storage component is prevented from being damaged, and the reliability of energy storage discharge circuit is improved. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only the embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the provided drawings.

[0046] Figure 1 The circuit schematic diagram of the energy storage discharge circuit provided by the embodiment of the present application is shown in the figure.

[0047] Figure 2 The general circuit schematic diagram of the energy storage discharge circuit provided by the embodiment of the present application is shown in the figure.

[0048] Figure 3 A unit schematic diagram of the energy storage discharge circuit provided by the embodiment of the present application. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the present application will be described below with reference to the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application.

[0050] In the prior art, a large power supply is usually configured for the high peak power pulse load in the energy storage discharge circuit, and a special power supply is additionally configured for the detection control part, which causes the power of the power supply to be too large, the volume of the equipment formed by the energy storage discharge circuit to be too large, and resources to be wasted. Meanwhile, in the existing energy storage discharge circuit, when the energy storage discharge circuit is in the off discharge state, the internal discharge of the power supply is relied on, and because the internal discharge load of the power supply is too small, the discharge time is too long, and there is a shutdown safety hazard.

[0051] The embodiment provides an energy storage discharge circuit, referring to Figure 1 an energy storage discharge circuit circuit schematic diagram, the energy storage discharge circuit comprises a power supply input interface 11, a first current limiting component 101, a first switch device 102, a first electric control device 103, a start-stop control transmission device JP202 and an energy storage component 104; wherein the first current limiting component 101 is composed of a resistor; the energy storage component 104 is used for storing electric energy, and the energy storage component 104 is composed of a capacitor;

[0052] Referring to Figure 2The total circuit schematic diagram of one energy storage discharge circuit is shown, the first current limiting component 101 is composed of one resistor or a plurality of series resistors, specifically, including resistors R201, R202 and R203 connected in series, and one end of the resistor R201 is used as the input end of the current limiting component, and one end of the resistor R203 is used as the output end of the current limiting component; the energy storage component 104 is composed of one capacitor or a plurality of parallel capacitors, specifically, the capacitor is a polar capacitor, including capacitors C208, C209, C210, C211, C212, C213, C214, C215, C216, C217, C218 and C219 connected in parallel, and the anodes of the capacitors C208, C209, C210, C211, C212, C213, C214, C215, C216, C217, C218 and C219 are connected in parallel to form the port of the energy storage component 104, and the cathodes of the capacitors C208, C209, C210, C211, C212, C213, C214, C215, C216, C217, C218 and C219 are connected in parallel to ground; the first switching device 102 is a PNP transistor Q203; the first electrical control device 103 is a relay K202.

[0053] The start-stop control transmission device JP202 is connected with the control end of the first switching device 102; the start-stop control transmission device JP202 is used for outputting a low-level signal to the control end of the first switching device 102 to make the first switching device 102 conductive when receiving a signal of starting charging;

[0054] The pin 1 of the start-stop control transmission device JP202 is connected with the control end of the first switching device 102 (i.e. the base B of the PNP transistor Q203); the pin 2 of the start-stop control transmission device JP202 is grounded; the start-stop control transmission device JP202 outputs a level signal to the base of the PNP transistor Q203 according to the received start-stop signal when receiving the start-stop signal (i.e. the signal of charging and discharging the energy storage component 104) of the external control system board, and outputs a low-level signal to the base of the PNP transistor Q203 to control the PNP transistor Q203 to be conductive when the external control system board sends a start signal (i.e. a signal of starting charging the energy storage component 104).

[0055] The first port of the first switching device 102 is externally connected with a direct current power supply, and the output end of the first switching device 102 is connected with the control system of the first electrical control device 103;

[0056] The first switch device 102 is configured to output a high-level signal to the control system of the first electric control device 103 when a low-level signal is received at the control end;

[0057] The first port of the first switch device 102 (i.e., the emitter E of the PNP transistor Q203) is externally connected to a direct current power supply, and the output end of the first switch device 102 (i.e., the collector C of the PNP transistor Q203) is connected to the control system (i.e., the pin 1 of the relay K202) of the first electric control device 103, and the pin 2 of the relay K202 is grounded;

[0058] When the base of the PNP transistor Q203 receives a low-level signal, and since the emitter is externally connected to a direct current voltage, the emitter voltage of the PNP transistor Q203 is greater than the base voltage, so the PNP transistor Q203 is turned on, and the collector of the PNP transistor Q203 outputs a high-level signal to the pin 1 of the relay K202;

[0059] The power supply input interface 11 is connected to the input end of the first current limiting component 101, the output end of the first current limiting component 101 is connected to the first port of the controlled system of the first electric control device 103, and the second port of the controlled system of the first electric control device 103 is connected to the port of the energy storage component 104;

[0060] The power supply input interface 11 can supply power to the energy storage discharge circuit by connecting the power supply JP201, and the power supply JP201 is usually a direct current power supply, and the power supply voltage value can be 24V, and the positive electrode (pin 1) of the power supply JP201 is connected to the power supply input interface 11, and the negative electrode (pin 2) is grounded. One end of the resistor R201 in the first current limiting component 101 is connected to the power supply input interface, one end of the resistor R203 is connected to the first port (i.e., the pin 4 of the relay K202) of the controlled system of the first electric control device 103, and the resistors R201, R202 and R203 in the current limiting component are set to limit the current, so as to avoid the burning of the energy storage component 104 caused by excessive current; the second port (i.e., the pin 5 of the relay K202) of the controlled system of the first electric control device 103 is connected to the port (i.e., the anode of each capacitor in the energy storage component 104) of the energy storage component 104;

[0061] The first electric control device 103 is configured to control the first port and the second port of the controlled system to be turned on when the control system receives a high-level signal, so that the power supply input interface 11 charges the energy storage component 104 through the first current limiting component 101 and the first electric control device 103;

[0062] When the control system of the first electric control device 103 receives a high level signal (i.e. the pin 1 of the relay K202 receives a high level signal from the collector output of the PNP transistor Q203), the control system (i.e. the coil composed of the pin 1 and the pin 2) in the relay K202 has current flowing through, which will make the pin 4 of the relay K202 attract to the pin 5, i.e. the first port and the second port of the first electric control device 103 are turned on.

[0063] The energy storage discharge circuit provided by the embodiment of the present application can output a low level signal to the control end of the first switch device through the start-stop control transmission device when the energy storage component needs to be charged, so as to make the first switch device conduct. The first switch device is used to output a high level signal to the control system of the first electric control device through the output end when conducting, so as to make the first port and the second port of the controlled system of the first electric control device conduct, thereby making the power input interface charge the energy storage component through the first current limiting component and the first electric control device. The energy storage component can be charged only when the start-stop control transmission device outputs a low level signal, the starting moment of charging can be accurately controlled, the current size in the charging circuit is limited by setting the current limiting resistor, the situation of sudden change of the voltage between the two ends of the energy storage component in the charging process is avoided, the capacitor in the energy storage component is prevented from being damaged, and the reliability of the energy storage discharge circuit is improved.

[0064] Referring to Figure 3 The energy storage discharge circuit provided by the embodiment of the present application includes: a slow power-on unit 12, a slow power-on control unit 13, an energy storage unit 14, and a start-stop control unit 15. The slow power-on unit 12 includes: a first current limiting component 101. The slow power-on control unit 13 includes: a first switch device 102 (i.e. a PNP transistor Q203), a first electric control device 103 (i.e. a relay K202), a voltage stabilizing diode D204, a diode 205, a resistor R220, a resistor R221, a resistor R222, and a capacitor C204. The energy storage unit 14 includes: an energy storage component 104. The start-stop control unit 15 includes: a start-stop control transmission device JP202 and a resistor R204.

[0065] Specifically, the power supply input interface is connected to a power supply JP201, and the power supply input interface 11 is connected to the input end (i.e. one end of the resistor R201 in the first current limiting component 101) of the slow power-on unit 12. The output end (i.e. one end of the resistor R203 in the first current limiting component 101) of the slow power-on unit 12 is connected to the first port (i.e. the pin 4 of the relay K202) of the controlled system in the first electric control device 103.

[0066] One end of the resistor R204 in the start-stop control unit 15 is connected with the first port (pin 1) of the start-stop control transmission device JP202, and the other end is connected to the direct current power supply VCC, and the resistor R204 is used to clamp the output signal of the start-stop control transmission device JP202;

[0067] The anode of the voltage stabilizing diode D204 in the slow power-on control unit 13 is connected with the pin 1 of the start-stop control transmission device JP202 in the start-stop control unit 15, the cathode of the voltage stabilizing diode D204 is connected with one end of the resistor R220 and one end of the capacitor C204, the other end of the capacitor C204 is connected with the emitter of the PNP transistor Q203, one end of the resistor R220 is connected with one end of the resistor R221 and the base of the PNP transistor Q203, the other end of the resistor R221 is connected with the emitter of the PNP transistor Q203, one end of the resistor R222 is connected with the ground, and the other end is connected with the pin 2 of the relay K202 and the anode of the diode 205, the cathode of the diode 205 is connected with the pin 1 of the relay K202, wherein the voltage stabilizing diode D204, the diode 205, the resistor R220, the resistor R221, the resistor R222 and the capacitor C204 play the roles of voltage stabilization, current limiting, filtering and noise reduction, etc.

[0068] The second port of the controlled system in the first electric control device 103 (i.e. the pin 5 of the relay K202) is connected with the port of the energy storage assembly 104 (i.e. the anode of each capacitor).

[0069] In one embodiment, the energy storage discharge circuit further comprises a sampling assembly, a voltage comparator U201, a second switching device and an output interface, wherein the sampling assembly at least comprises one resistor.

[0070] As shown in Figure 2 the sampling assembly comprises the resistor R205, the resistor R206, the resistor R207, the resistor R208 and the capacitor C201, and the second switching device is an N-type field effect transistor M201.

[0071] The sampling assembly is connected with the inverting input terminal of the voltage comparator U201, and the sampling assembly is used to detect the voltage of the energy storage assembly 104.

[0072] One end of the sampling component is connected with the port of the energy storage component 104, and the other end is connected with the inverting input end of the voltage comparator U201. The sampling component is used to collect the voltage stored by the energy storage component 104 in real time, and transmit the collected voltage of the energy storage component 104 to the inverting input end of the voltage comparator U201. One end of the resistor R205 in the sampling component is connected with the port of the energy storage component 104, and the other end is connected with one end of the resistor R206. The other end of the resistor R206 is connected with one end of the resistor R207, one end of the resistor R208 and one end of the capacitor C201. The other ends of the resistor R204 and the capacitor C201 are grounded. The other end of the resistor R208 is connected with the inverting input end of the voltage comparator U201. The resistor R205, the resistor R206 and the resistor R208 play a current limiting role. The resistor R207 is used for voltage stabilization, and the capacitor C201 is used for filtering.

[0073] The non-inverting input end of the voltage comparator U201 is connected with the start-stop control transmission device JP202. The start-stop control transmission device JP202 is used to output a low-level signal to the non-inverting input end of the voltage comparator U201 when the energy storage discharge circuit is charging.

[0074] The output end of the voltage comparator U201 is connected with the control end of the second switching device. The input end of the second switching device is connected with the power supply input interface 11. The output end of the second switching device is connected with the energy storage component 104. The output end of the energy storage component 104 is connected with the output interface.

[0075] The voltage comparator U201 is used to trigger the input end and the output end of the second switching device to conduct when the voltage of the energy storage component 104 received by the inverting input end is greater than the low-level signal of the non-inverting input end, so that the power supply input interface 11 charges the energy storage component 104 through the second switching device.

[0076] The non-inverting input end of the voltage comparator U201 is connected with the start-stop control transmission device JP202. The inverting input end of the voltage comparator U201 is connected with the sampling component. The output end of the voltage comparator U201 is connected with the control end (i.e. the gate of the N-type field effect transistor M201) of the second switching device. The input end (i.e. the source of the N-type field effect transistor M201) of the second switching device is connected with the power supply input interface. The output end (i.e. the drain of the N-type field effect transistor M201) of the second switching device is connected with the port of the energy storage component 104.

[0077] When the energy storage component 104 needs to be charged, the start-stop control transmission device JP202 outputs a low-level signal to the non-inverting input terminal of the voltage comparator U201, and the inverting input terminal of the voltage comparator U201 is used to receive the storage voltage of the energy storage component 104. The voltage comparator U201 will only output a low-level signal through the output terminal when the received voltage of the energy storage component 104 is greater than the preset voltage threshold (i.e. the low-level signal output by the start-stop control transmission device JP202), so as to trigger the conduction of the input terminal and the output terminal of the second switching device, so that the power input interface 11 charges the energy storage component 104 through the second switching device, that is, in the energy storage starting stage, the power supply JP201 cannot directly supply power to the energy storage component 104, and needs to first charge the energy storage component 104 through the first current limiting component 101 and the first electric control device 103; When the voltage of the energy storage component 104 is greater than the preset voltage threshold, it proves that a certain amount of voltage has been stored in the energy storage component 104 at this time, and the energy storage component 104 is directly connected with the power supply JP201. No voltage jump will occur at this time, and the voltage comparator U201 triggers the conduction of the second switching device (i.e. the source and drain of the N-type field effect tube M201), so that the power supply JP201 directly supplies power to the energy storage component 104 through the second switching device;

[0078] As shown in Figure 2 The output terminal of the energy storage component 104 is connected with the output interface, specifically, the output terminal of the energy storage component 104 is provided with a plurality of output interfaces, and is connected with a load JP205, a load JP206 and a load JP207. The pin 1 of the load JP205 is connected with the anode of the capacitor C208, the pin 2 of the load JP205 is grounded, and is connected with the anode of the capacitor C209 through the capacitor C220. The pin 1 of the load JP206 is connected with the anode of the capacitor C212, the pin 2 of the load JP206 is grounded, and is connected with the anode of the capacitor C213 through the capacitor C221. The pin 1 of the load JP207 is connected with the anode of the capacitor C216, the pin 2 of the load JP207 is grounded, and is connected with the anode of the capacitor C217 through the capacitor C222. The anode of the capacitor C210 is connected with the capacitor C223 and then grounded. The anode of the capacitor C211 is connected with the capacitor C224 and then grounded. The anode of the capacitor C214 is connected with the capacitor C225 and then grounded. The anode of the capacitor C215 is connected with the capacitor C226 and then grounded. The anode of the capacitor C218 is connected with the capacitor C227 and then grounded. The anode of the capacitor C219 is connected with the capacitor C228 and then grounded. The capacitors C220, C221, C222, C223, C224, C225, C226, C227 and C228 have a filtering effect.

[0079] As shown in Figure 3As shown, the energy storage discharging circuit provided by the embodiment of the present application further comprises a sampling unit 16, a detection unit 17 and a main loop switch unit 18; wherein the sampling unit 16 comprises: a sampling component; the detection unit 17 comprises: a diode D201, a resistor R212, a resistor R213, a resistor R214, a capacitor C202, a voltage stabilizing chip IC201 and a voltage comparator U201; the main loop switch unit 18 comprises: a second switch device (i.e. N-type field effect transistor M201);

[0080] The inverting input end (i.e. pin 2) of the voltage comparator U201 in the detection unit 17 is connected with the resistor R208 in the sampling unit 16, the anode of the diode D201 is connected with pin 1 of the start-stop control transmission device JP202 in the start-stop control unit 15, the cathode is connected with the non-inverting input end (i.e. pin 3) of the voltage comparator U201, one end of the resistor R212, one end of the resistor R213, one end of the resistor R214, one end of the capacitor C202, pin 1 and pin 2 of the voltage stabilizing chip IC201, the other end of the resistor R213, the other end of the capacitor C202 and pin 3 of the voltage stabilizing chip IC201 are all grounded, the other end of the resistor R214 is connected with pin 4 of the voltage comparator U201, and the output end (pin 1) of the voltage comparator U201 is connected with the control end (i.e. the gate of the N-type field effect transistor M201) of the main loop switch unit 18; wherein the voltage stabilizing chip IC201 plays a role of stabilizing the input voltage of the non-inverting input end of the voltage comparator U201, pin 4 of the voltage comparator U201 is externally connected with a direct current voltage VCC, pin 5 of the voltage comparator U201 is grounded, and the loop composed of pin 4 and pin 5 of the voltage comparator U201 supplies power to the voltage comparator U201; the diode D201, the resistor R212, the resistor R213, the resistor R214 and the capacitor C202 play roles of current limiting, filtering and noise reduction, etc.

[0081] The voltage comparator U201 in the detection unit 17 outputs a low level signal when the voltage received by the inverting input end is greater than the voltage received by the non-inverting input end, and outputs a high level signal when the voltage received by the inverting input end is less than or equal to the voltage received by the non-inverting input end, and the second switch device in the main loop switch unit 18 is turned on when the voltage comparator U201 outputs the low level signal, pin 4 of the voltage comparator U201 is externally connected with a direct current voltage VCC, pin 5 of the voltage comparator U201 is grounded, and the loop composed of pin 4 and pin 5 of the voltage comparator U201 supplies power to the voltage comparator U201.

[0082] In one embodiment, the energy storage discharging circuit further comprises: a second current limiting component; wherein the second current limiting component at least comprises one resistor;

[0083] The second current-limiting component includes one resistor or a plurality of resistors connected in series, specifically, the second current-limiting component includes resistors R209, R210 and R211 connected in series; one end of the resistor R209 is connected with the third port of the buffer upper control unit 13, and one end of the resistor R211 is grounded;

[0084] The input end of the second current-limiting component is connected with the third port of the controlled system of the first electric control device 103, and the output end of the second current-limiting component is grounded;

[0085] The start-stop control transmission device JP202 is used for outputting a high level signal to the control end of the first switch device 102 and the non-inverting input end of the voltage comparator U201 when the energy storage discharge circuit discharges;

[0086] The input end of the second current-limiting component (i.e. one end of the resistor R209) is connected with the third port (pin 3 of the relay K202) of the controlled system of the first electric control device 103, and the output end of the second current-limiting component (i.e. one end of the resistor R211) is grounded;

[0087] The first switch device 102 is used for resuming the open state when the control end receives the high level signal, so that the control system of the first electric control device 103 receives a low level signal, triggering the second port and the third port of the controlled system of the first electric control device 103 to be conductive, so that the energy storage component 104 releases the electric energy to the second current-limiting component through the first electric control device 103;

[0088] The voltage comparator U201 is used for triggering the second switch device to resume the open state when the non-inverting input end receives the high level signal;

[0089] The start-stop control transmission device JP202 is used for outputting a high level signal to the control end of the first switch device 102 and the non-inverting input end of the voltage comparator U201 when the energy storage discharge circuit discharges, at this time, the base of the PNP transistor Q203 receives the high level signal, the PNP transistor Q203 is cut off, and the PNP transistor Q203 will not send any level signal to the pin 1 of the relay K202; the non-inverting input end of the voltage comparator U201 receives the high level signal, at this time, since the voltage value of the reverse input end of the voltage comparator U201 is smaller than the voltage value of the non-inverting input end, the output end of the voltage comparator U201 outputs a high level signal, controlling the second switch device to be in the open state; since the pin 1 of the relay K202 does not receive any level signal (i.e. a low level signal), there is no current flowing through the coil of the control system of the relay K202, so that the second port and the third port (i.e. the pin 5 and the pin 3 of the relay K202) of the controlled system of the relay K202 are conductive, so that the energy storage component 104 releases the electric energy to the second current-limiting component through the first electric control device 103; as Figure 3As shown, the energy storage discharging circuit provided by the embodiment of the present application further comprises: a shutdown discharging unit 20; the shutdown discharging unit 20 comprises: a second current-limiting component, an input end of the shutdown discharging unit 20 (i.e. one end of the resistor R209) is connected with a third port of a controlled system of the relay K202 in the slow power-on control unit 13, and an output end of the shutdown discharging unit 20 (i.e. one end of the resistor R211) is grounded.

[0090] In one embodiment, as shown in the figure, the energy storage discharging circuit provided by the embodiment of the present application further comprises: a first optocoupler U202, a second electric control device and a third switching device. Figure 2

[0091] The third switching device is a PNP triode Q201, and the second electric control device is a relay K201.

[0092] An output end of the voltage comparator U201 is connected with a control end of the third switching device, a first port of the third switching device is externally connected with a direct current power supply, and an output end of the third switching device is connected with a control system of the second electric control device.

[0093] The voltage comparator U201 is used to output a low level signal to the control end of the third switching device when the voltage of the energy storage component 104 received at the inverting input end is greater than the low level signal at the non-inverting input end, and the third switching device is used to output a high level signal to the control system of the second electric control device when the low level signal is received at the control end.

[0094] An output end of the voltage comparator U201 is connected with a control end of the third switching device (i.e. a base of the PNP triode Q201), a first port of the third switching device (i.e. an emitter of the PNP triode Q201) is externally connected with a direct current power supply VCC, an output end of the third switching device (i.e. a collector of the PNP triode Q201) is connected with a control system of the second electric control device (a pin 2 of the relay K201), and a pin 1 of the relay K201 is grounded.

[0095] ​The voltage comparator U201 outputs a low-level signal to the control end of the third switching device when the voltage of the energy storage component 104 is greater than the preset voltage threshold, proving that the voltage stored in the energy storage component 104 has reached the preset voltage threshold at this time, proving that even if the power supply JP201 directly supplies power to the energy storage component 104 through the second switching device at this time, it will not cause the voltage of the energy storage component 104 to suddenly change, avoiding the damage of the capacitor in the energy storage component 104. When the control end of the third switching device (i.e. the base of the PNP transistor Q201) receives a low-level signal, the emitter voltage of the PNP transistor Q201 is greater than the base voltage because the emitter of the PNP transistor Q201 is externally connected to a direct current voltage, so the PNP transistor Q201 is turned on, and the collector of the PNP transistor Q201 outputs a high-level signal to the pin 2 of the relay K201; When the output end of the voltage comparator U201 outputs a high-level signal to the base of the PNP transistor Q201, the PNP transistor Q201 is cut off, and the PNP transistor Q201 will not send any level signal to the pin 2 of the relay K201.

[0096] The first port of the controlled system in the second electrical control device is connected to the negative electrode of the light-emitting diode in the first optoelectronic coupler U202, and the second port of the controlled system in the second electrical control device is grounded; the positive electrode of the light-emitting diode in the first optoelectronic coupler U202 is connected to the second port of the first electrical control device 103, the emitter of the photosensitive transistor in the first optoelectronic coupler U202 is externally connected to a direct current power supply, and the collector of the photosensitive transistor in the first optoelectronic coupler U202 is connected to the control end of the second switching device.

[0097] The first port (i.e. the pin 4 of the relay K201) of the controlled system in the first electrical control device 103 is connected to the negative electrode (i.e. the pin 2 of the optoelectronic coupler) of the light-emitting diode in the first optoelectronic coupler U202, and a resistor R225 is arranged on the connection line, and the second port (i.e. the pin 5 of the relay K201) of the controlled system in the first electrical control device 103 is grounded.

[0098] The positive electrode (i.e. the pin 1 of the first optoelectronic coupler U202) of the light-emitting diode in the first optoelectronic coupler U202 is connected to the pin 3 of the relay K202, the emitter (i.e. the pin 4 of the first optoelectronic coupler U202) of the photosensitive transistor in the first optoelectronic coupler U202 is externally connected to a direct current power supply VCC, and the collector (i.e. the pin 3 of the first optoelectronic coupler U202) of the photosensitive transistor in the first optoelectronic coupler U202 is connected to the gate of the N-type field effect transistor M201.

[0099] The second electrical control device is used to control the first port and the second port of the controlled system to be turned on when the control system receives a high-level signal, so that the light-emitting diode of the first optoelectronic coupler U202 is turned on.

[0100] The control system in the relay K201, i.e. the coil, is connected between pin 3 and pin 5 when no current flows through it, but when the control system of the first electric control device 103 receives a high-level signal, the coil in the relay K201 has current flowing through it, which causes the pin 4 of the relay K201 to be attracted to the pin 5, so that the first port and the second port of the second electric control device are connected, so that the light-emitting diode of the first optocoupler U202 is turned on.

[0101] The first optocoupler U202 is used to output a high-level signal to the control end of the second switch device through the collector of the phototriode when the light-emitting diode is turned on, so as to trigger the input end and the output end of the second switch device to be connected;

[0102] When the light-emitting diode of the first optocoupler U202 is turned on, the light-emitting diode will generate light energy, and when the light energy irradiates the phototriode of the first optocoupler U202, the phototriode will be turned on, and the collector of the phototriode will transmit a high-level signal to the gate of the N-type field effect transistor M201, so that the N-type field effect transistor M201 is turned on.

[0103] In one embodiment, as shown in Figure 2 the embodiment provides an energy storage discharge circuit further comprising: a second optocoupler U203;

[0104] The anode of the light-emitting diode in the second optocoupler U203 is connected with the collector of the phototriode in the first optocoupler U202, the cathode of the light-emitting diode in the second optocoupler U203 is grounded, the collector of the phototriode in the second optocoupler U203 is connected with the port of the energy storage component 104, and the emitter of the phototriode in the second optocoupler U203 is connected with the control end of the second switch device;

[0105] The cathode of the light-emitting diode in the second optocoupler U203 (i.e. pin 2 of the second optocoupler U203) is grounded, the anode of the light-emitting diode in the second optocoupler U203 (i.e. pin 1 of the second optocoupler U203) is connected with pin 3 of the first optocoupler U202, the emitter of the phototriode in the second optocoupler U203 (i.e. pin 4 of the second optocoupler U203) is connected with the gate of the N-type field effect transistor M201, and the collector of the phototriode in the second optocoupler U203 (i.e. pin 3 of the second optocoupler U203) is connected with the port of the energy storage component 104 and the drain of the N-type field effect transistor M201.

[0106] The light-sensitive triode in the first photoelectric coupler U202 is used to output a high level signal to the anode of the light-emitting diode in the second photoelectric coupler U203 when turned on, so as to turn on the light-emitting diode in the second photoelectric coupler U203;

[0107] The second photoelectric coupler U203 is used to trigger the light-sensitive triode to turn on when the light-emitting diode is turned on, so as to trigger the input end and the output end of the second switching device to turn on;

[0108] When the light-emitting diode in the first photoelectric coupler U202 is turned on, the light-sensitive diode thereof is turned on under light, at this time, the DC power supply connected to the pin 4 of the first photoelectric coupler U202 supplies power to the light-emitting diode of the second photoelectric coupler U203, and the light-emitting diode of the second photoelectric coupler U203 has current flowing therethrough to generate a light source, when the light source irradiates the light-sensitive triode of the second photoelectric coupler U203, the light-sensitive triode is turned on, so that the source and the drain of the N-type field effect transistor M201 are turned on, so that the power supply input interface can directly supply power to the energy storage assembly 104.

[0109] As shown in Figure 3 The energy storage discharging circuit provided by the embodiment of the present application further comprises a switching unit 21 and a main loop control unit 22; the switching unit 21 comprises a first photoelectric coupler U202, a third switching device, a voltage stabilizing diode D202, a resistor R215, a resistor R216, a resistor R224 and a capacitor C203; the main loop control unit 22 comprises a second electric control device, a diode D203 and a resistor R217; the main loop switching unit 18 further comprises a photoelectric coupler U203, a resistor R223 and a capacitor C205;

[0110] The cathode of the voltage stabilizing diode D202 in the switching unit 21 is connected with the output end of the voltage comparator U201, the anode of the voltage stabilizing diode D202 is connected with one end of the resistor R215 and one end of the capacitor C203, the other end of the capacitor C203 is connected with the emitter of the PNP triode Q201, the other end of the resistor R215 is connected with one end of the resistor R216 and the base of the PNP triode Q201, the other end of the resistor R216 is connected with the emitter of the PNP triode Q201, one end of the resistor R224 is connected with the anode of the light-emitting diode in the first photoelectric coupler U202, and the other end is connected with the second port of the slow power-on control unit 13; wherein the voltage stabilizing diode D202, the resistor R215, the resistor R216, the resistor R224 and the capacitor C203 play the roles of voltage stabilization, current limiting and filtering, etc.

[0111] One end of the resistor R217 in the main circuit control unit 22 is grounded, and the other end is connected with the pin 5, the pin 1 of the relay K201, and the anode of the diode D203, and the cathode of the diode D203 is connected with the pin 2 of the relay K201, wherein the diode D203 and the resistor R217 play the roles of noise reduction and current limiting;

[0112] The cathode of the light emitting diode in the photoelectric coupler U203 in the main circuit switch unit 18 is grounded, the anode of the light emitting diode in the photoelectric coupler U203 is connected with one end of the resistor R223, the other end of the resistor R223 is connected with the pin 3 of the first photoelectric coupler U202 and one end of the capacitor C205, the other end of the capacitor C205 is connected with the pin 2 of the photoelectric coupler U203, the emitter of the photoelectric triode in the photoelectric coupler U203 (i.e. the pin 4 of the photoelectric coupler U203) is connected with the gate of the N-type field effect tube M201, the collector of the photoelectric triode in the photoelectric coupler U203 (i.e. the pin 3 of the photoelectric coupler U203) is connected with the port of the energy storage unit 14 and the drain of the N-type field effect tube M201, and the source of the N-type field effect tube M201 is connected with the power supply input interface 11.

[0113] In one embodiment, as shown in Figure 2 the embodiment provides that the energy storage discharge circuit further comprises a fourth switching device and a state transmission device JP203;

[0114] The first port of the fourth switching device is grounded, and the control end of the fourth switching device is connected with the collector of the photoelectric triode in the first photoelectric coupler U202;

[0115] The photoelectric triode in the first photoelectric coupler U202 is used to output a high-level signal to the control end of the fourth switching device when it is turned on, so as to trigger the fourth switching device to be turned on;

[0116] The output end of the fourth switching device is connected with the state transmission device JP203; the state transmission device JP203 is used to output a signal that the energy storage assembly 104 has completed energy storage to an external control system board when the fourth switching device is turned on;

[0117] The fourth switching device is an NPN triode Q202; the first port (i.e. the collector of the NPN triode Q202) of the fourth switching device is grounded, the control end (i.e. the base of the NPN triode Q202) of the fourth switching device is connected with the collector (i.e. the pin 3) of the photoelectric triode in the first photoelectric coupler U202, and the output end of the fourth switching device (the emitter of the NPN triode Q202) is connected with the pin 1 of the state transmission device JP203;

[0118] The base of the NPN triode Q202 receives the high level signal of the first photoelectric coupler U202 when the light-sensitive triode in the first photoelectric coupler U202 is turned on, which proves that the energy storage component 104 meets the energy storage requirement at this time. Since the base of the NPN triode Q202 receives the high level signal at this time, the collector of the NPN triode Q202 is grounded, the base voltage of the NPN triode is greater than the collector voltage, and the NPN triode Q202 is in the on state. At this time, the state transmission device outputs the signal that the energy storage component 104 completes the energy storage to the external control system board;

[0119] As shown in Figure 3 , the energy storage and discharge circuit provided by the embodiment of the present application further comprises a state output unit 23; the state output unit 23 comprises a state output interface, a resistor R218, a resistor R219 and a fourth switching device;

[0120] The state output interface in the state output unit 23 can transmit the energy storage state of the energy storage component 104 to the external control system board by connecting the state transmission device JP203; the pin 1 of the state transmission device JP203 is connected with the collector C of the NPN triode Q202, the emitter E of the NPN triode Q202 is grounded, the base B of the NPN triode Q202 is connected with one end of the resistor R218 and one end of the resistor R219, the other end of the resistor R218 is connected with the emitter of the NPN triode Q202, and the other end of the resistor R218 is connected with the collector of the light-sensitive triode in the first photoelectric coupler U202.

[0121] In one embodiment, as shown in Figure 2 , the energy storage and discharge circuit provided by the embodiment further comprises a filter capacitor C229;

[0122] The filter capacitor C229 is arranged on the connection line between the power supply input interface 11 and the input end of the first current limiting component 101;

[0123] One end of the filter capacitor C229 is connected with the pin 1 of the power supply JP201, and the other end is connected with the pin 2 of the power supply JP201, so as to realize the filtering of the current in the main loop circuit; wherein, as shown in Figure 3 , the energy storage and discharge circuit provided by the embodiment of the present application further comprises a filter unit 26; the filter unit 26 comprises a filter capacitor C229.

[0124] In one embodiment, as shown in Figure 2 , the energy storage and discharge circuit provided by the embodiment further comprises a fuse F202 and a pressure sensitive resistor R226;

[0125] The fuse F202 and the pressure sensitive resistor R226 are arranged on the connection line between the power supply input interface 11 and the input end of the first current limiting component 101, and are connected in parallel with the filter capacitor C229.

[0126] As shown in Figure 2 , the fuse F202 and the voltage-dependent resistor R226 are connected in series and then connected in parallel with the filter capacitor C229, the fuse F202 is used to be fused when the current in the power supply circuit is too large, the voltage-dependent resistor R226 is used to clamp the voltage when the voltage in the power supply circuit is too large, and the fuse F202 and the voltage-dependent resistor R226 jointly provide voltage and current protection for the energy storage circuit; wherein, as shown in Figure 3 , the energy storage and discharge circuit provided by the embodiment of the application further comprises: a protection unit 27; the protection unit 27 comprises: a fuse F202 and a voltage-dependent resistor R226.

[0127] In one embodiment, the energy storage and discharge circuit provided by the embodiment further comprises: a power failure holding capacitor C206;

[0128] One end of the power failure holding capacitor C206 is connected with the power supply input interface, and the other end is grounded; the power failure holding capacitor is used to store voltage when the energy storage component 104 is charged;

[0129] As shown in Figure 2 , the power failure holding capacitor C206 is a polarized capacitor, the anode of the power failure holding capacitor C206 is connected with the pin 1 of the power supply JP201 and the energy storage component 104, and the cathode of the power failure holding capacitor C206 is grounded; the power failure holding capacitor C206 is used to store voltage when the energy storage component 104 is charged;

[0130] The energy storage and discharge circuit provided by the embodiment of the application further comprises: a power failure holding unit 24; the power failure holding unit 24 comprises a diode D206, a diode D207, a power failure holding capacitor C206 and a capacitor C207; the anode of the diode D206 is connected with the pin 1 of the power supply JP201, the cathode of the diode D206 is connected with one end of the power failure holding capacitor C206, one end of the capacitor C207 and the cathode of the diode D207, the other end of the power failure holding capacitor C206 and the other end of the capacitor C207 are both grounded, and the anode of the diode D207 is connected with the port of the energy storage component 104.

[0131] In one embodiment, as shown in Figure 3 , the energy storage and discharge circuit provided by the embodiment further comprises: an auxiliary power supply output interface 25;

[0132] One end of the auxiliary power supply output interface 25 is connected with the power failure holding capacitor C206; the other end of the auxiliary power supply output interface 25 is used to externally connect an auxiliary power supply;

[0133] The power failure holding capacitor is further used to provide delay power supply for the externally connected auxiliary power supply JP204 through the auxiliary power supply output interface when the energy storage component 104 releases electric energy;

[0134] As shown in Figure 2As shown, the auxiliary power output interface 25 can be externally connected to the auxiliary power JP204 for powering the external control system board, pin 1 of the auxiliary power JP204 is connected to one end of the fuse F201, the other end of the fuse F201 is connected to the anode of the capacitor C206 in the power failure retention unit 24, and pin 2 of the auxiliary power JP204 is grounded. When the energy storage assembly 104 releases electric energy, the power failure retention capacitor C206 provides time-delay power supply for the auxiliary power JP204 through the auxiliary power output interface 25, the auxiliary power JP204 powers the external control system board, and ensures that the external control system board can still be normally used when the power supply JP201 suddenly loses power.

[0135] In the embodiment of the present application, a specific implementation of the energy storage discharge circuit is provided as follows:

[0136] When the energy storage discharge circuit needs to store energy, the start-stop control unit 15 receives the start charging signal of the external control system board, outputs a low-level signal to the same-phase input end of the buffer power-on control unit 13 and the detection unit 17, and connects the 24V DC power supply at the power supply input interface 11. At this time, the PNP transistor Q203 in the buffer power-on control unit 13 is turned on, the coil of the relay K202 has current flowing therethrough, the pin 4 and the pin 5 of the relay K202 are turned on, the power supply JP201 supplies power to the energy storage unit 14 through the buffer power-on unit 12, and the purpose of buffer power-on is achieved. When the voltage received by the opposite-phase input end of the detection unit 17 is greater than the low-level signal output by the start-stop control unit 15 (i.e., the voltage of the energy storage unit 14 reaches 22V), it indicates that the voltage stored in the energy storage unit 14 reaches the requirement, at this time, the power supplied by the energy storage unit 14 to the load is 20V, the detection unit 17 outputs a low-level signal to the switch unit 21, at this time, the PNP transistor Q201 in the switch unit 21 is turned on, so that the coil of the relay K201 has current flowing therethrough, the pin 4 and the pin 5 of the relay K201 are turned on, the light-emitting diode of the first optocoupler U202 is turned on, the light-sensitive transistor is turned on, at this time, the source and the drain of the N-type field effect transistor M201 in the main loop switch unit 18 are also turned on, the power supply JP201 can directly supply power to the energy storage unit 14, and the NPN transistor Q202 in the state output unit 23 outputs an energy storage completion signal to the external control system board. The power supply during the energy storage process is changed from the original traditional multi-path power supply to single-path power supply, the number and size of the power supply are reduced, the device wiring is more simple, and the interference source is also correspondingly reduced.

[0137] When the energy storage discharging circuit needs to discharge, the start-stop control unit 15 receives the stop charging signal of the external control system board, outputs a high level signal to the same phase input end of the buffer power-on control unit 13 and the detection unit 17, at this time, the PNP transistor Q203 in the buffer power-on control unit 13 is cut off, the coil in the relay K202 has no current flowing through, the pin 3 and the pin 5 of the relay K202 are conducted, the voltage at the inverse phase input end of the detection unit 17 is less than the voltage at the same phase input end of the detection unit 17, the detection unit 17 outputs a high level signal to the PNP transistor Q201 in the switching unit 21, at this time, the PNP transistor Q201 is cut off, the coil in the relay K201 has no current flowing through, the pin 3 and the pin 5 of the relay K201 are conducted, the light emitting diode of the first optocoupler U202 is cut off, the shutdown discharge unit 20 is controlled by the buffer power-on control unit 13 and the main loop control unit 22 in the NOR control, in the discharging process, the power supply unit directly releases the electric energy through the shutdown discharge unit 20, greatly shortens the discharging time, and enhances the safety and reliability of the energy storage discharging circuit after power-off, when the voltage in the energy storage unit 14 decreases to 20V, the load is turned off, at this time, the auxiliary power supply outputs the interface 25 to the auxiliary power supply to maintain the delay power supply of the external control system board, so that the external control system board is maintained in the normal state, when the voltage in the energy storage unit 14 decreases to 9V, if the external control system board sends a signal to control power-off, at this time, the external control system board is not affected by the power supply due to the existence of the power-off holding unit 27, if the power supply JP201 is cut off, at this time, the load has been turned off, and the whole energy storage discharging circuit and the external control system board are safely turned off.

[0138] In the embodiment of the application, the buffer power-on control unit 13 in the energy storage discharging circuit can also be replaced by a multi-way control to realize the control of the buffer power-on control unit by the combination logic or timing circuit such as NAND, OR, NOR, etc.

[0139] The output signal of the buffer power-on control unit 13 and the output signal of the main loop control unit 22 can also be replaced by a multi-way control to realize the control of the shutdown discharge unit 20 by the combination logic or timing circuit such as AND, NAND, OR, etc.

[0140] In the description of the application, it should be noted that the terms "upper", "lower", "front", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or instruments referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0141] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the term "mounting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or internal communication of two devices. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0142] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An energy storage and discharge circuit, characterized in that, include: The device includes a power input interface, a first current limiting component, a first switching device, a first electrical control device, a start / stop control transmission device, and an energy storage component; wherein the first current limiting component is composed of resistors; the energy storage component is used to store electrical energy and is composed of capacitors; The start / stop control transmission device is connected to the control terminal of the first switching device; The start / stop control transmission device is used to output a low-level signal to the control terminal of the first switching device when it receives a signal to start charging, so as to turn on the first switching device. The first port of the first switching device is connected to an external DC power supply, and the output terminal of the first switching device is connected to the control system of the first electrical control device. The first switching device is used to output a high-level signal to the control system of the first electrical control device when a low-level signal is received at the control terminal; The power input interface is connected to the input terminal of the first current limiting component, the output terminal of the first current limiting component is connected to the first port of the controlled system of the first electrical controller, and the second port of the controlled system of the first electrical controller is connected to the port of the energy storage component. The first electrical control device is used to control the first port and the second port of the controlled system to be turned on when the control system receives a high-level signal, so that the power supply input interface charges the energy storage component through the first current limiting component and the first electrical control device.

2. The energy storage and discharge circuit according to claim 1, characterized in that, Also includes: The device includes a sampling component, a voltage comparator, a second switching device, and an output interface; wherein the sampling component includes at least one resistor. The sampling component is connected to the inverting input of the voltage comparator; the sampling component is used to detect the voltage of the energy storage component. The start / stop control transmission device is connected to the non-inverting input of the voltage comparator; the start / stop control transmission device is used to output a low-level signal to the non-inverting input of the voltage comparator when the energy storage discharge circuit is charging. The output terminal of the voltage comparator is connected to the control terminal of the second switching device; the input terminal of the second switching device is connected to the power supply input interface; the output terminal of the second switching device is connected to the energy storage component; and the output terminal of the energy storage component is connected to the output interface. The voltage comparator is used to trigger the input and output terminals of the second switching device to conduct when the voltage of the energy storage component received at the inverting input terminal is greater than the low-level signal at the non-inverting input terminal, so that the power supply input interface charges the energy storage component through the second switching device.

3. The energy storage and discharge circuit according to claim 2, characterized in that, Also includes: The second current limiting component; wherein, the second current limiting component is composed of resistors; The input terminal of the second current limiting component is connected to the third port of the controlled system of the first electrical controller, and the output terminal of the second current limiting component is grounded. The start / stop control transmission device is used to output a high-level signal to the control terminal of the first switching device and the non-inverting input terminal of the voltage comparator when the energy storage discharge circuit is discharging. The first switching device is used to restore the disconnected state when the control terminal receives a high-level signal, so that the control system of the first electrical control device receives a low-level signal, triggering the second port and the third port of the controlled system of the first electrical control device to be turned on, so that the energy storage component releases electrical energy to the second current limiting component through the first electrical control device; The voltage comparator is used to trigger the second switching device to return to the open state when a high-level signal is received at the non-inverting input.

4. The energy storage and discharge circuit according to claim 3, characterized in that, Also includes: The first optocoupler, the second electrical control device, and the third switching device; The output terminal of the voltage comparator is connected to the control terminal of the third switching device, the first port of the third switching device is connected to an external DC power supply, and the output terminal of the third switching device is connected to the control system of the second electrical control device. The voltage comparator is used to output a low-level signal to the control terminal of the third switching device when the voltage of the energy storage component received at the inverting input terminal is greater than the low-level signal at the non-inverting input terminal. The third switching device is used to output a high-level signal to the control system of the second electrical control device when it receives a low-level signal at the control terminal. The first port of the controlled system in the second electrical control device is connected to the negative terminal of the light-emitting diode in the first optocoupler, and the second port of the controlled system in the second electrical control device is grounded; the positive terminal of the light-emitting diode in the first optocoupler is connected to the second port of the first electrical control device, the emitter of the phototransistor in the first optocoupler is connected to an external DC power supply, and the collector of the phototransistor in the first optocoupler is connected to the control terminal of the second switching device. The second electrical control device is used to control the first port and the second port of the controlled system to be turned on when the control system receives a high-level signal, so as to turn on the light-emitting diode of the first optocoupler; The first optocoupler is used to output a high-level signal to the control terminal of the second switching device through the collector of the phototransistor when the light-emitting diode is turned on, so as to trigger the input and output terminals of the second switching device to turn on.

5. The energy storage and discharge circuit according to claim 4, characterized in that, Also includes: Second optocoupler; The positive terminal of the light-emitting diode in the second optocoupler is connected to the collector of the phototransistor in the first optocoupler, the negative terminal of the light-emitting diode in the second optocoupler is grounded, the collector of the phototransistor in the second optocoupler is connected to the port of the energy storage component, and the emitter of the phototransistor in the second optocoupler is connected to the control terminal of the second switching device. The phototransistor in the first optocoupler is used to output a high-level signal to the positive terminal of the light-emitting diode in the second optocoupler when it is turned on, so as to turn on the light-emitting diode in the second optocoupler; The second optocoupler is used to trigger the phototransistor to conduct when the light-emitting diode is turned on, so as to trigger the input and output terminals of the second switching device to conduct.

6. The energy storage and discharge circuit according to claim 5, characterized in that, Also includes: Fourth switching device and status transmission device; The first port of the fourth switching device is grounded, and the control terminal of the fourth switching device is connected to the collector of the phototransistor in the first optocoupler. The phototransistor in the first optocoupler is used to output a high-level signal to the control terminal of the fourth switching device when it is turned on, so as to trigger the fourth switching device to turn on. The output terminal of the fourth switching device is connected to the status transmission device; the status transmission device is used to output a signal to the external control system board that the energy storage component has completed energy storage when the fourth switching device is turned on.

7. The energy storage and discharge circuit according to claim 1, characterized in that, It also includes: filter capacitors; The filter capacitor is located on the connection line between the power supply input interface and the input terminal of the first current limiting component.

8. The energy storage and discharge circuit according to claim 7, characterized in that, Also includes: Fuse and varistor; The fuse and the varistor are located on the connection line between the power supply input interface and the input terminal of the first current limiting component, and are connected in parallel with the filter capacitor.

9. The energy storage and discharge circuit according to claim 1, characterized in that, Also includes: Power-off retention capacitor; One end of the power-down retention capacitor is connected to the power input interface, and the other end is grounded; the power-down retention capacitor is used to store voltage when the energy storage component is charging.

10. The energy storage and discharge circuit according to claim 9, characterized in that, Also includes: Auxiliary power output interface; One end of the auxiliary power output interface is connected to the power-off retention capacitor; the other end of the auxiliary power output interface is used to connect an external auxiliary power supply. The power-down holding capacitor is also used to provide delayed power supply to the external auxiliary power supply through the auxiliary power output interface when the energy storage component releases electrical energy.

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