Battery pack output control circuit and energy storage power supply

Abstract

The utility model provides a battery pack output control circuit and an energy storage power supply. The battery pack-combining output control circuit comprises a battery pack-combining driving circuit and a battery pack-combining quick-break circuit. The battery pack driving circuit comprises a driving optocoupler, a first electronic switching tube and a first resistor; the battery parallel package quick-break circuit comprises a second electronic switching tube, a second resistor, a third resistor and a fourth resistor. A battery parallel pack driving control voltage is fed back to the first electronic switch tube through the driving optocoupler so as to realize isolation control of battery parallel pack output, and when the output of the battery parallel pack is turned off, the second electronic switch tube is turned on, so that the first resistor and the second resistor are mutually connected in series and turned on, and the isolation control of the battery parallel pack output is realized. Therefore, the equivalent resistance between the control end and the second end of the first electronic switch tube is reduced, the first electronic switch tube is quickly turned off, and the use safety of battery pack combination is effectively improved.

Description

Technical Field

[0001] The present disclosure relates to the field of battery technology, and in particular to a battery including an output control circuit and an energy storage power supply. Background Art

[0002] With the advancement of technology and humanity's growing demand for energy, batteries, as a form of energy that can store and release electrical energy, have been widely used in various fields. However, traditional battery energy storage systems suffer from problems such as low energy density, slow charging speed, and short service life, which seriously restrict their application in certain fields. Therefore, the battery pack strategy has emerged as a new energy management method. It can improve the overall performance and efficiency of battery packs and has broad application prospects. For example, the capacity and power of outdoor portable energy storage batteries are not unlimited. They are limited by battery technology and cost and cannot meet all power needs. Some users may encounter such problems as insufficient power from the outdoor power supply to continuously power their devices or insufficient power to power high-power devices.

[0003] To address power supply issues, a parallel pack battery is often used. A parallel pack battery is an expansion battery that can be connected to an outdoor power supply. It increases the capacity and power of the outdoor power supply, thereby improving its efficiency and flexibility. A parallel pack works by combining multiple battery cells in parallel to form a larger battery pack, increasing the battery's total voltage or current, and thus its total energy and power. Furthermore, by using parallel pack batteries or connecting multiple parallel packs in parallel with a main unit, users can quickly and easily expand capacity to meet existing power needs without having to purchase multiple units, thereby reducing costs.

[0004] However, when traditional parallel-pack batteries are used in parallel with main-pack batteries, the voltage-driven MOSFET on the positive terminal of the BMS protection board is often easily affected by the control signal. Moreover, when the parallel-pack batteries are turned off, the MOSFET cannot be turned off quickly, resulting in the inability to effectively protect the BMS in a timely manner, affecting the safety of the device. Utility Model Content

[0005] The purpose of the present disclosure is to overcome the deficiencies in the prior art and to provide a battery output control circuit and an energy storage power supply that both isolate and control the positive terminal of the battery and improve safety.

[0006] The purpose of this disclosure is achieved through the following technical solutions:

[0007] A battery parallel package output control circuit, comprising: a battery parallel package drive circuit and a battery parallel package quick-break circuit; the battery parallel package drive circuit comprises a driving optocoupler, a first electronic switch tube and a first resistor, the positive light-emitting electrode of the driving optocoupler is used to connect to a reference voltage, the negative light-emitting electrode of the driving optocoupler is used to connect to a battery parallel package drive control voltage, the positive light-receiving electrode of the driving optocoupler is used to connect to a bootstrap voltage, the negative light-receiving electrode of the driving optocoupler is connected to a first end of the first resistor, the second end of the first resistor is connected to a control end of the first electronic switch tube, the first end of the first electronic switch tube is used to connect to the positive output of the battery main package, and the second end of the first electronic switch tube is used to connect to the positive output of the battery main package. The end is used to be connected to the positive output electrode of the battery package; the battery package quick-break circuit includes a second electronic switch tube, a second resistor, a third resistor and a fourth resistor, the first end of the second resistor is connected to the second end of the first electronic switch tube, the second end of the second resistor is connected to the second end of the second electronic switch tube, the first end of the second resistor is also connected to the first end of the third resistor, the second end of the third resistor is connected to the control end of the second electronic switch tube, the second end of the third resistor is also connected to the first end of the fourth resistor, and the second end of the fourth resistor is respectively connected to the first end of the first resistor and the first end of the second electronic switch tube.

[0008] In one embodiment, the battery and package quick-break circuit further includes a fifth resistor, the first end of the second electronic switch tube is connected to the first end of the fifth resistor, and the second end of the fifth resistor is connected to the control end of the second electronic switch tube.

[0009] In one embodiment, the battery and package quick-break circuit further includes a first voltage-stabilizing tube, the first end of the second electronic switch tube is connected to the positive electrode of the first voltage-stabilizing tube, and the negative electrode of the first voltage-stabilizing tube is connected to the control end of the second electronic switch tube.

[0010] In one embodiment, the battery and package quick-break circuit further includes a third electronic switch tube, a fourth electronic switch tube, a sixth resistor, a seventh resistor, and an eighth resistor. The first end of the second electronic switch tube is connected to the second end of the third electronic switch tube, the first end of the third electronic switch tube is connected to the control end of the fourth electronic switch tube through the sixth resistor, and the control end of the third electronic switch tube is connected to the second end of the third resistor; the first end of the seventh resistor is connected to the second end of the first electronic switch tube, the second end of the seventh resistor is connected to the control end of the fourth electronic switch tube, the second end of the fourth electronic switch tube is connected to the second end of the first electronic switch tube, and the first end of the fourth electronic switch tube is connected to the second end of the third resistor through the eighth resistor.

[0011] In one embodiment, the battery parallel pack quick-break circuit also includes a fifth electronic switch tube, a ninth resistor, a tenth resistor, and a first capacitor. The second end of the fifth electronic switch tube is connected to the second end of the first electronic switch tube, the first end of the fifth electronic switch tube is connected to the second end of the third resistor, the first end of the ninth resistor is connected to the second end of the fifth electronic switch tube, the second end of the ninth resistor is connected to the control end of the fifth electronic switch tube, the first end of the tenth resistor is connected to the positive output electrode of the battery main pack, and the second end of the tenth resistor is connected to the control end of the fifth electronic switch tube through the first capacitor.

[0012] In one embodiment, the battery and package quick-break circuit further includes an eleventh resistor, the first end of the fifth electronic switch tube is connected to the first end of the eleventh resistor, and the second end of the eleventh resistor is connected to the second end of the third resistor.

[0013] In one embodiment, the battery and package quick-break circuit further includes a second voltage-stabilizing tube, the control end of the fifth electronic switch tube is connected to the positive electrode of the second voltage-stabilizing tube, and the negative electrode of the second voltage-stabilizing tube is connected to the second end of the fifth electronic switch tube.

[0014] In one embodiment, the battery and package driving circuit also includes a first anti-backflow diode and a second anti-backflow diode, the light-receiving negative electrode of the driving optocoupler is connected to the positive electrode of the second anti-backflow diode, the negative electrode of the second anti-backflow diode is respectively connected to the second end of the fourth resistor and the positive electrode of the second anti-backflow diode, and the negative electrode of the second anti-backflow diode is connected to the first end of the first resistor.

[0015] In one embodiment, the battery and package driving circuit also includes a second capacitor, a fuse and a third voltage-stabilizing tube, wherein the first end of the second capacitor is connected to the first end of the first electronic switch tube, and the second end of the second capacitor is connected to the second end of the first electronic switch tube; the positive electrode of the third voltage-stabilizing tube is connected to the first end of the first electronic switch tube, and the negative electrode of the third voltage-stabilizing tube is connected to the second end of the first electronic switch tube through the fuse.

[0016] An energy storage power supply comprises the battery described in any one of the above embodiments and an output control circuit.

[0017] Compared with the prior art, the present disclosure has at least the following advantages:

[0018] The battery pack drive control voltage is fed back to the first electronic switch tube through the driving optocoupler to achieve isolated control of the battery pack output. Moreover, when the output of the battery pack is turned off, the second electronic switch tube is turned on, so that the first resistor and the second resistor are connected in series and turned on, thereby reducing the equivalent resistance between the control end and the second end of the first electronic switch tube, thereby causing the first electronic switch tube to be quickly turned off, effectively improving the safety of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 A circuit diagram of a battery and output control circuit in one embodiment;

[0021] Figure 2 for Figure 1 The circuit diagram of the battery pack driving circuit in the battery pack output control circuit shown;

[0022] Figure 3 for Figure 1 The circuit diagram of the battery package quick-break circuit in the battery package output control circuit is shown. DETAILED DESCRIPTION

[0023] To facilitate understanding of the present disclosure, a more comprehensive description of the present disclosure will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present disclosure. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure.

[0024] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this disclosure pertains. The terms used herein in the specification of this disclosure are intended only to describe specific embodiments and are not intended to limit this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] The present disclosure relates to a battery parallel package output control circuit. In one embodiment, the battery parallel package output control circuit includes a battery parallel package drive circuit and a battery parallel package quick-break circuit; the battery parallel package drive circuit includes a driving optocoupler, a first electronic switch tube and a first resistor, the light-emitting positive electrode of the driving optocoupler is used to connect to the reference voltage, the light-emitting negative electrode of the driving optocoupler is used to connect to the battery parallel package drive control voltage, the light-receiving positive electrode of the driving optocoupler is used to connect to the bootstrap voltage, the light-receiving negative electrode of the driving optocoupler is connected to the first end of the first resistor, the second end of the first resistor is connected to the control end of the first electronic switch tube, the first end of the first electronic switch tube is used to connect to the positive output of the battery main package, and the first electronic switch The second end of the tube is used to connect to the positive output electrode of the battery parallel package. The battery parallel package fast-disconnect circuit includes a second electronic switch tube, a second resistor, a third resistor, and a fourth resistor. The first end of the second resistor is connected to the second end of the first electronic switch tube, the second end of the second resistor is connected to the second end of the second electronic switch tube, the first end of the second resistor is also connected to the first end of the third resistor, the second end of the third resistor is connected to the control end of the second electronic switch tube, the second end of the third resistor is also connected to the first end of the fourth resistor, and the second end of the fourth resistor is respectively connected to the first end of the first resistor and the first end of the second electronic switch tube. The battery parallel package drive control voltage is fed back to the first electronic switch tube via a driving optocoupler to achieve isolated control of the battery parallel package output. Moreover, when the battery parallel package output is shut down, the second electronic switch tube is turned on, causing the first and second resistors to be connected in series and turned on, thereby reducing the equivalent resistance between the control end and the second end of the first electronic switch tube, thereby causing the first electronic switch tube to be quickly shut down, effectively improving the safety of the battery parallel package.

[0027] See also Figure 1 , which is a circuit diagram of a battery and output control circuit according to an embodiment of the present disclosure.

[0028] The battery parallel output control circuit 10 of one embodiment includes a battery parallel drive circuit 100 and a battery parallel quick-break circuit 200. Figure 2The battery parallel package driving circuit 100 includes a driving optocoupler QO1, a first electronic switch tube MOD1, and a first resistor ROD1. The positive light-emitting electrode of the driving optocoupler QO1 is used to connect to the reference voltage, the negative light-emitting electrode of the driving optocoupler QO1 is used to connect to the battery parallel package driving control voltage PB-DSG-Ctr, the positive light-receiving electrode of the driving optocoupler QO1 is used to connect to the bootstrap voltage CP1, the negative light-receiving electrode of the driving optocoupler QO1 is connected to the first end of the first resistor ROD1, the second end of the first resistor ROD1 is connected to the control end of the first electronic switch tube MOD1, the first end of the first electronic switch tube MOD1 is used to connect to the positive output electrode P+ of the battery main package, and the second end of the first electronic switch tube MOD1 is used to connect to the positive output electrode PB+ of the battery parallel package. Please refer to Figure 3 The battery and package quick-break circuit 200 includes a second electronic switch MO1, a second resistor RO9, a third resistor RO7, and a fourth resistor RO8. The first end of the second resistor RO9 is connected to the second end of the first electronic switch MOD1, the second end of the second resistor RO9 is connected to the second end of the second electronic switch MO1, the first end of the second resistor RO9 is also connected to the first end of the third resistor RO7, the second end of the third resistor RO7 is connected to the control end of the second electronic switch MO1, the second end of the third resistor RO7 is also connected to the first end of the fourth resistor RO8, and the second end of the fourth resistor RO8 is respectively connected to the first end of the first resistor ROD1 and the first end of the second electronic switch MO1.

[0029] In this embodiment, the battery parallel pack drive control voltage PB-DSG-Ctr is fed back to the first electronic switch tube MOD1 by driving the optocoupler QO1 to achieve isolated control of the battery parallel pack output. Moreover, when the output of the battery parallel pack is turned off, the second electronic switch tube MO1 is turned on, so that the first resistor ROD1 and the second resistor RO9 are connected in series and turned on, thereby reducing the equivalent resistance between the control terminal and the second terminal of the first electronic switch tube MOD1, thereby causing the first electronic switch tube MOD1 to be quickly turned off, effectively improving the safety of the battery parallel pack.

[0030] In another embodiment, the first electronic switch tube is an N-type MOS tube, the first end of the first electronic switch tube is the drain of the N-type MOS tube, the second end of the first electronic switch tube is the source of the N-type MOS tube, and the control end of the first electronic switch tube is the gate of the N-type MOS tube; the second electronic switch tube is a PNP transistor, the first end of the second electronic switch tube is the collector of the PNP transistor, the second end of the second electronic switch tube is the emitter of the PNP transistor, and the control end of the second electronic switch tube is the base of the PNP transistor.

[0031] In one embodiment, see Figure 3 The battery and package quick-break circuit 200 further includes a fifth resistor RO2. The first end of the second electronic switch MO1 is connected to the first end of the fifth resistor RO2, and the second end of the fifth resistor RO2 is connected to the control end of the second electronic switch MO1. In this embodiment, the fifth resistor RO2 is connected in parallel with the second electronic switch MO1. Specifically, the fifth resistor RO2 is connected in parallel between the first end and the control end of the second electronic switch MO1, so that the fifth resistor RO2 serves as a fast on-resistance between the first end and the control end of the second electronic switch MO1, thereby improving the response speed of the second electronic switch MO1.

[0032] In one embodiment, see Figure 3 The battery-package quick-break circuit 200 further includes a first voltage regulator transistor ZO3. The first terminal of the second electronic switch transistor MO1 is connected to the positive electrode of the first voltage regulator transistor ZO3, and the negative electrode of the first voltage regulator transistor ZO3 is connected to the control terminal of the second electronic switch transistor MO1. In this embodiment, the first voltage regulator transistor ZO3 and the second electronic switch transistor MO1 are connected in parallel. Specifically, the first voltage regulator transistor ZO3 is connected in parallel between the first terminal and the control terminal of the second electronic switch transistor MO1. This allows the first voltage regulator transistor ZO3 to provide a protective bias voltage for the first terminal and the control terminal of the second electronic switch transistor MO1, ensuring stable operation of the second electronic switch transistor MO1.

[0033] In one embodiment, see Figure 3The battery and package quick-break circuit 200 further includes a third electronic switch tube QO2, a fourth electronic switch tube QO4, a sixth resistor RO13, a seventh resistor RO12, and an eighth resistor RO14. A first end of the second electronic switch tube MO1 is connected to the second end of the third electronic switch tube QO2, a first end of the third electronic switch tube QO2 is connected to the control end of the fourth electronic switch tube QO4 via the sixth resistor RO13, and the control end of the third electronic switch tube QO2 is connected to the second end of the third resistor RO7; a first end of the seventh resistor RO12 is connected to the second end of the first electronic switch tube MOD1, a second end of the seventh resistor RO12 is connected to the control end of the fourth electronic switch tube QO4, a second end of the fourth electronic switch tube QO4 is connected to the second end of the first electronic switch tube MOD1, and a first end of the fourth electronic switch tube QO4 is connected to the second end of the third resistor RO7 via the eighth resistor RO14. In this embodiment, when the battery pack is paralleled and output is turned off, the voltage divider between the third resistor RO7 and the fourth resistor RO8 changes, turning on the third electronic switch QO2. This, in turn, causes the voltage divider between the sixth resistor RO13 and the seventh resistor RO12 to change synchronously, thereby turning on the fourth electronic switch QO4. Thus, the sixth resistor RO13 and the seventh resistor RO12 are now integrated between the second terminal and the control terminal of the first electronic switch MOD1. Furthermore, the eighth resistor RO14 serves as the resistor of another parallel circuit, increasing the number of conductive loops between the second terminal and the control terminal of the first electronic switch MOD1 and further improving the turn-off rate of the first electronic switch MOD1.

[0034] In another embodiment, the third electronic switch tube is a PNP transistor, the first end of the third electronic switch tube is the collector of the PNP transistor, the second end of the third electronic switch tube is the emitter of the PNP transistor, and the control end of the third electronic switch tube is the base of the PNP transistor; the fourth electronic switch tube is an NPN transistor, the first end of the fourth electronic switch tube is the collector of the NPN transistor, the second end of the fourth electronic switch tube is the emitter of the NPN transistor, and the control end of the fourth electronic switch tube is the base of the NPN transistor.

[0035] In one embodiment, see Figure 3The battery parallel pack quick-break circuit 200 further includes a fifth electronic switch tube M5, a ninth resistor RO4, a tenth resistor RO3, and a first capacitor CO1. The second end of the fifth electronic switch tube M5 is connected to the second end of the first electronic switch tube MOD1, the first end of the fifth electronic switch tube M5 is connected to the second end of the third resistor RO7, the first end of the ninth resistor RO4 is connected to the second end of the fifth electronic switch tube M5, the second end of the ninth resistor RO4 is connected to the control end of the fifth electronic switch tube M5, the first end of the tenth resistor RO3 is connected to the positive output electrode P+ of the battery main pack, and the second end of the tenth resistor RO3 is connected to the control end of the fifth electronic switch tube M5 via the first capacitor CO1. In this embodiment, when the battery parallel package output is short-circuited, the control end of the fifth electronic switch tube M5 is connected to the battery parallel package output positive electrode PB+ through the first capacitor CO1 and the tenth resistor RO3. The voltage at the control end of the fifth electronic switch tube M5 is affected by the voltage division of the ninth resistor RO4 and the tenth resistor RO3, so that the fifth electronic switch tube M5 is turned on, thereby further improving the turn-off rate of the first electronic switch tube MOD1.

[0036] In another embodiment, the fifth electronic switch tube is an N-type MOS tube, the first end of the fifth electronic switch tube is the drain of the N-type MOS tube, the second end of the fifth electronic switch tube is the source of the N-type MOS tube, and the control end of the fifth electronic switch tube is the gate of the N-type MOS tube.

[0037] Furthermore, the battery parallel package fast-disconnect circuit 200 also includes an eleventh resistor RO5. The first end of the fifth electronic switch tube M5 is connected to the first end of the eleventh resistor RO5, and the second end of the eleventh resistor RO5 is connected to the second end of the third resistor RO7. In this embodiment, the eleventh resistor RO5 is connected in series with the fifth electronic switch tube M5. Specifically, the eleventh resistor RO5 is connected in series with the first end of the fifth electronic switch tube M5. When the fifth electronic switch tube M5 is turned on, the eleventh resistor RO5 serves as a path resistor between the second end and the control end of the first electronic switch tube MOD1, so that the first electronic switch tube MOD1 is quickly turned off when the battery parallel package output is short-circuited.

[0038] Furthermore, the battery parallel package quick-break circuit 200 further includes a second voltage regulator transistor ZO4. The control terminal of the fifth electronic switch transistor M5 is connected to the positive electrode of the second voltage regulator transistor ZO4, and the negative electrode of the second voltage regulator transistor ZO4 is connected to the second terminal of the fifth electronic switch transistor M5. In this embodiment, the second voltage regulator transistor ZO4 is connected in parallel with the fifth electronic switch transistor M5. Specifically, the second voltage regulator transistor ZO4 is connected in parallel between the second terminal and the control terminal of the fifth electronic switch transistor M5. This ensures that the conduction bias voltage of the fifth electronic switch transistor M5 is within a safe range, thereby ensuring normal operation of the fifth electronic switch transistor M5.

[0039] In one embodiment, see Figure 2 The battery parallel pack driving circuit 100 further includes a first anti-backflow diode DO1 and a second anti-backflow diode DO2. The light-receiving cathode of the driving optocoupler QO1 is connected to the anode of the second anti-backflow diode DO2. The cathode of the second anti-backflow diode DO2 is respectively connected to the second end of the fourth resistor RO8 and the anode of the first anti-backflow diode DO1. The cathode of the first anti-backflow diode DO1 is connected to the first end of the first resistor ROD1. In this embodiment, the second anti-backflow diode DO2 is connected in series with the light-receiving cathode of the driving optocoupler QO1 to prevent the output current of the battery parallel pack from flowing back to the light-receiving cathode of the driving optocoupler QO1. Furthermore, the first anti-backflow diode DO1 is connected in series with the first resistor ROD1 to facilitate directing the output current of the battery parallel pack to the control terminal of the first electronic switch MOD1, thereby achieving on-off control between the main battery pack and the battery parallel pack.

[0040] In one embodiment, see Figure 2 The battery pack drive circuit 100 also includes a second capacitor CO3, a fuse F11, and a third voltage regulator diode TVS06. The first end of the second capacitor CO3 is connected to the first end of the first electronic switch MOD1, and the second end of the second capacitor CO3 is connected to the second end of the first electronic switch MOD1. The positive electrode of the third voltage regulator diode TVS06 is connected to the first end of the first electronic switch MOD1, and the negative electrode of the third voltage regulator diode TVS06 is connected to the second end of the first electronic switch MOD1 via the fuse F11. In this embodiment, the second capacitor CO3 is connected in parallel between the main battery pack and the battery pack to absorb static electricity between the two packs, preventing static electricity from being released during shutdown. The fuse F11 and the third voltage regulator diode TVS06 are connected in series between the main battery pack and the battery pack, reducing the voltage pulses generated during the switching process between the main battery pack and the battery pack, effectively preventing surges.

[0041] In one embodiment, the present disclosure also relates to an energy storage power supply, including the battery parallel package output control circuit described in any of the above embodiments. In this embodiment, the battery parallel package output control circuit includes a battery parallel package drive circuit and a battery parallel package quick-break circuit; the battery parallel package drive circuit includes a driving optocoupler, a first electronic switch tube and a first resistor, the light-emitting positive electrode of the driving optocoupler is used to connect to the reference voltage, the light-emitting negative electrode of the driving optocoupler is used to connect to the battery parallel package drive control voltage, the light-receiving positive electrode of the driving optocoupler is used to connect to the bootstrap voltage, the light-receiving negative electrode of the driving optocoupler is connected to the first end of the first resistor, the second end of the first resistor is connected to the control end of the first electronic switch tube, the first end of the first electronic switch tube is used to connect to the positive output of the battery main package, and the first electronic switch tube The second end of the parallel battery pack is connected to the positive output terminal of the parallel battery pack. The parallel battery pack quick-break circuit includes a second electronic switch tube, a second resistor, a third resistor, and a fourth resistor. The first end of the second resistor is connected to the second end of the first electronic switch tube, the second end of the second resistor is connected to the second end of the second electronic switch tube, the first end of the second resistor is also connected to the first end of the third resistor, the second end of the third resistor is connected to the control end of the second electronic switch tube, the second end of the third resistor is also connected to the first end of the fourth resistor, and the second end of the fourth resistor is respectively connected to the first end of the first resistor and the first end of the second electronic switch tube. The parallel battery pack drive control voltage is fed back to the first electronic switch tube via the driving optocoupler to achieve isolated control of the parallel battery pack output. Moreover, when the parallel battery pack output is shut down, the second electronic switch tube is turned on, causing the first and second resistors to be connected in series and turned on, thereby reducing the equivalent resistance between the control end and the second end of the first electronic switch tube, thereby causing the first electronic switch tube to be quickly shut down, effectively improving the safety of the parallel battery pack.

[0042] The above-described embodiments merely represent several implementation methods of the present disclosure. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the scope of the present disclosure, all of which fall within the scope of protection of the present disclosure. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A battery and package output control circuit, characterized in that: include: A battery parallel package drive circuit, the battery parallel package drive circuit comprising a drive optocoupler, a first electronic switch tube, and a first resistor, wherein the positive light-emitting electrode of the drive optocoupler is used to connect to a reference voltage, the negative light-emitting electrode of the drive optocoupler is used to connect to a battery parallel package drive control voltage, the positive light-receiving electrode of the drive optocoupler is used to connect to a bootstrap voltage, the negative light-receiving electrode of the drive optocoupler is connected to a first end of the first resistor, the second end of the first resistor is connected to a control end of the first electronic switch tube, the first end of the first electronic switch tube is used to connect to the positive output electrode of the battery main package, and the second end of the first electronic switch tube is used to connect to the positive output electrode of the battery parallel package; A battery and package quick-break circuit includes a second electronic switch tube, a second resistor, a third resistor, and a fourth resistor. The first end of the second resistor is connected to the second end of the first electronic switch tube, the second end of the second resistor is connected to the second end of the second electronic switch tube, the first end of the second resistor is also connected to the first end of the third resistor, the second end of the third resistor is connected to the control end of the second electronic switch tube, the second end of the third resistor is also connected to the first end of the fourth resistor, and the second end of the fourth resistor is respectively connected to the first end of the first resistor and the first end of the second electronic switch tube.

2. The battery and package output control circuit according to claim 1, characterized in that: The battery and package quick-break circuit further includes a fifth resistor, a first end of the second electronic switch tube is connected to the first end of the fifth resistor, and a second end of the fifth resistor is connected to the control end of the second electronic switch tube.

3. The battery and package output control circuit according to claim 1, characterized in that: The battery and package quick-break circuit also includes a first voltage regulator tube, the first end of the second electronic switch tube is connected to the positive electrode of the first voltage regulator tube, and the negative electrode of the first voltage regulator tube is connected to the control end of the second electronic switch tube.

4. The battery parallel output control circuit according to claim 1, characterized in that: The battery and package quick-break circuit also includes a third electronic switch tube, a fourth electronic switch tube, a sixth resistor, a seventh resistor, and an eighth resistor. The first end of the second electronic switch tube is connected to the second end of the third electronic switch tube, the first end of the third electronic switch tube is connected to the control end of the fourth electronic switch tube through the sixth resistor, and the control end of the third electronic switch tube is connected to the second end of the third resistor; the first end of the seventh resistor is connected to the second end of the first electronic switch tube, the second end of the seventh resistor is connected to the control end of the fourth electronic switch tube, the second end of the fourth electronic switch tube is connected to the second end of the first electronic switch tube, and the first end of the fourth electronic switch tube is connected to the second end of the third resistor through the eighth resistor.

5. The battery parallel output control circuit according to claim 1, characterized in that: The battery pack quick-break circuit also includes a fifth electronic switch tube, a ninth resistor, a tenth resistor, and a first capacitor. The second end of the fifth electronic switch tube is connected to the second end of the first electronic switch tube, the first end of the fifth electronic switch tube is connected to the second end of the third resistor, the first end of the ninth resistor is connected to the second end of the fifth electronic switch tube, the second end of the ninth resistor is connected to the control end of the fifth electronic switch tube, the first end of the tenth resistor is connected to the positive output electrode of the battery main pack, and the second end of the tenth resistor is connected to the control end of the fifth electronic switch tube via the first capacitor.

6. The battery parallel output control circuit according to claim 5, characterized in that: The battery and package quick-break circuit further includes an eleventh resistor, the first end of the fifth electronic switch tube is connected to the first end of the eleventh resistor, and the second end of the eleventh resistor is connected to the second end of the third resistor.

7. The battery parallel output control circuit according to claim 5, characterized in that: The battery and package quick-break circuit also includes a second voltage regulator tube, the control end of the fifth electronic switch tube is connected to the positive electrode of the second voltage regulator tube, and the negative electrode of the second voltage regulator tube is connected to the second end of the fifth electronic switch tube.

8. The battery parallel output control circuit according to claim 1, characterized in that: The battery and package driving circuit also includes a first anti-backflow diode and a second anti-backflow diode. The light-receiving negative electrode of the driving optocoupler is connected to the positive electrode of the second anti-backflow diode, the negative electrode of the second anti-backflow diode is respectively connected to the second end of the fourth resistor and the positive electrode of the first anti-backflow diode, and the negative electrode of the first anti-backflow diode is connected to the first end of the first resistor.

9. The battery parallel output control circuit according to claim 1, characterized in that: The battery and package driving circuit also includes a second capacitor, a fuse and a third voltage-stabilizing tube. The first end of the second capacitor is connected to the first end of the first electronic switch tube, and the second end of the second capacitor is connected to the second end of the first electronic switch tube; the positive electrode of the third voltage-stabilizing tube is connected to the first end of the first electronic switch tube, and the negative electrode of the third voltage-stabilizing tube is connected to the second end of the first electronic switch tube through the fuse.

10. An energy storage power supply, characterized in that: The invention comprises the battery according to any one of claims 1 to 9 and an output control circuit.

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