CN219875165U - Control circuit of energy storage device and energy storage device - Google Patents

Abstract

The utility model provides a control circuit of energy storage equipment and the energy storage equipment, the control circuit includes: the input end of the first direct current converter is connected with the energy storage piece; the circuit board is connected with the output end of the first direct current converter; the first wake-up circuit is connected with the first direct current converter, the second wake-up circuit is connected with the circuit board, the first wake-up circuit is used for receiving user input, and the second wake-up circuit is used for being connected with a wake-up power supply; under the condition that the first wake-up circuit receives user input, the first direct current converter supplies power to the circuit board; or in the case that the second wake-up circuit is connected to the wake-up power supply, the second wake-up circuit supplies power to the circuit board to power up the circuit board.

Description

Control circuit of energy storage device and energy storage device

Technical Field

The utility model relates to the technical field of circuits, in particular to a control circuit of energy storage equipment and the energy storage equipment.

Background

In energy storage devices, a dc converter is typically used to perform voltage conversion to achieve power supply to a circuit board.

By adopting the technical scheme, if the energy storage equipment does not work, at the moment, the components on the circuit board can enter a non-working state, and the direct current converter still has a small current loss.

The occurrence of the above situation can cause the stored electric energy of the energy storage device to be completely exhausted, and cause irreversible damage to the energy storage device.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art or related art.

To this end, a first aspect of the utility model is to provide a control circuit of an energy storage device.

A second aspect of the present utility model is to provide an energy storage device.

In view of this, according to a first aspect of the present utility model, there is provided a control circuit of an energy storage device, the energy storage device comprising an energy storage element, the control circuit comprising: the input end of the first direct current converter is connected with the energy storage piece; the circuit board is connected with the output end of the first direct current converter; the first wake-up circuit is connected with the first direct current converter, the second wake-up circuit is connected with the circuit board, the first wake-up circuit is used for receiving user input, and the second wake-up circuit is used for being connected with a wake-up power supply; under the condition that the first wake-up circuit receives user input, the first direct current converter supplies power to the circuit board; or in the case that the second wake-up circuit is connected to the wake-up power supply, the second wake-up circuit supplies power to the circuit board to power up the circuit board.

The technical scheme of the utility model provides a control circuit of energy storage equipment, which comprises a first direct current converter, a circuit board, a first wake-up circuit and/or a second wake-up circuit.

Specifically, in one of the technical schemes, the control circuit includes a first direct current converter, a circuit board and a first wake-up circuit.

Specifically, in one of the technical schemes, the control circuit comprises a first direct current converter, a circuit board and a second wake-up circuit.

Specifically, in one of the technical schemes, the control circuit comprises a first direct current converter, a circuit board, a first wake-up circuit and a second wake-up circuit.

In the technical scheme, under the condition that the energy storage equipment does not work, the first direct current converter stops supplying power to the circuit board so as to enable the circuit board to be powered down. Because the circuit board is powered down, the energy consumption is not generated any more, the consumption of the electric energy on the energy storage piece in the energy storage equipment is reduced, the probability of damage of the energy storage piece due to overdischarge is reduced, and the effect of protecting the energy storage piece is achieved.

In addition, the energy storage equipment applying the technical scheme of the utility model has the characteristic of low self-power consumption, and the energy storage equipment has longer storage time and the time kept in the transportation mode under the condition that the electric energy stored by the energy storage piece is the same, so that the service life of the energy storage equipment is prolonged.

In the above technical solution, the energy storage element may be understood as a device for storing electric energy, which is capable of outputting direct current, so that the first direct current converter performs voltage conversion on the output direct current to obtain direct current meeting the power supply requirement of the circuit board.

The first dc converter, that is, the dc converter, the DCDC converter, means a device for converting between high voltage and low voltage dc, and means a device for converting a dc power supply of a certain voltage level into a dc power supply of another voltage level. Wherein DC, english is Direct Current.

Under the condition that user input is received, based on connection of the first wake-up circuit and the first direct current converter, the first wake-up circuit can trigger the first direct current converter to work so as to supply power to the circuit board, and the circuit board is enabled to exit from a power-down state, so that power-on is realized. In the process, a user can actively input according to actual use requirements so as to trigger the first wake-up circuit to activate the circuit board to power up, so that the energy storage device operates.

Through setting up the second and awakening the circuit, utilize the relation of connection of second awakening the circuit and circuit board, the user can be connected with the second awakening the circuit through outside awakening the power supply, directly supplies power to the circuit board to realize the activation of circuit board, make energy storage equipment operate.

In the process, two wake-up modes of the circuit board are provided, so that the energy storage device can meet the use requirements of different scenes.

In the above technical solution, the wake-up power source may be understood as a power source for supplying power to the circuit board, and may be understood as an unsustainable power source, such as a battery, a power converter. The selection can be performed according to actual scenes and actual use needs, and detailed description is omitted here.

In addition, the control circuit of the energy storage device provided by the utility model has the following additional technical characteristics.

In the above technical solution, the first dc converter includes a first enable terminal, the circuit board has a first interface, and the first interface is connected with the first enable terminal; after the circuit board is electrified, the circuit board controls the first direct current converter to operate through the first interface.

In the technical scheme, the first enabling end and the first interface are arranged, so that the circuit board can control the working state of the first direct-current converter, and the first direct-current converter can provide stable power for the circuit board to drive the circuit board to stably operate.

In the above technical solution, the first interface is an input/output interface of the circuit board.

In any of the above technical solutions, the first dc-dc converter further includes a second enabling terminal, the circuit board further includes a second interface, and the first wake-up circuit is connected to the second enabling terminal and the second interface; under the condition that the first wake-up circuit receives user input, the circuit board determines that the wake-up mode is a first mode through the second interface, and controls the first direct current converter to operate through the first interface.

In the technical scheme, the second enabling end is arranged, so that the first wake-up circuit can control the working state of the first direct-current converter through the second enabling end, for example, in the case that the first wake-up circuit receives user input, the first wake-up circuit can react the user input to the first direct-current converter based on the connection relation, and the first direct-current converter can output voltage to supply power for the circuit board.

By setting the second interface, under the condition that the first wake-up circuit receives user input, the circuit board can sense the power supply mode of the first direct-current converter through the second interface, namely, the first wake-up circuit triggers the first direct-current converter to supply power to the first direct-current converter, and then the first interface is used for realizing the control of the first direct-current converter, so that the first direct-current converter can stably supply power to the first direct-current converter.

In any of the above technical solutions, the circuit board has a first power supply end, a second power supply end, and a third interface; the second wake-up circuit comprises a second direct current converter, the second direct current converter comprises a first output end, a second output end and a third enabling end, the first output end is connected with the first power supply end, the second output end is connected with the second power supply end, the third interface is connected with the third enabling end, wherein under the condition that the second wake-up circuit is connected to a wake-up power supply, the circuit board determines that a wake-up mode is a second mode through the third interface, and controls the first direct current converter to operate through the first interface, and controls the second direct current converter to stop operating through the third interface.

In this technical solution, the second wake-up circuit comprises a second dc converter, so that the second dc converter is used to convert the dc power output by the wake-up power source to a voltage that can be used to power the circuit board, and power the circuit board.

After the second direct current converter is connected to the wake-up power supply and supplies power to the circuit board, signals can be transmitted to the circuit board based on connection of the third enabling end and the third interface so that the circuit board can know the power supply mode, namely the second mode. And then the first direct current converter and the second direct current converter are controlled to work according to the power supply mode.

Specifically, the first direct current converter is controlled to operate so as to output a voltage suitable for the operation of the circuit board so as to provide stable power supply to the circuit board, and the second direct current converter is controlled to stop operating so as to cut off the power supply of the wake-up power supply.

In the process, the circuit board can select the operation and stop operation of the direct current converter according to the wake-up mode, so that the stable power supply of the circuit board is realized, and the stability of the control circuit in operation is ensured.

In any of the above solutions, the control circuit further includes: the first output line is connected with the first end of the energy storage piece; the second output line is connected with the second end of the energy storage piece; the control switch is positioned on the first output line or the second output line and is connected with the circuit board; after the circuit board is electrified, the circuit board is also used for controlling the control switch to be conducted and closed.

In this embodiment, the first output line and the second output line can be understood as bus bars which supply power to the energy storage element and/or take power from the outside in order to charge the energy storage element.

After the circuit board is electrified, the control switch is switched on and off to realize the on-off of the first output line or the second output line, so that whether the energy storage element is powered outwards or not or whether the energy storage element is powered from the outside is controlled.

In the above technical solution, the control switch may be a relay, such as a normally open relay.

In the technical scheme, after the circuit board is electrified, the control switch is driven to be closed so as to control whether the energy storage piece supplies power outwards, and in the process, the probability of damage caused by overdischarge of the energy storage piece is reduced.

Similarly, after the circuit board is electrified, the control switch is driven to be closed so as to control whether the energy storage part is electrified from the outside, thereby avoiding the situation that the energy storage part is directly charged under the condition that the circuit board is not electrified, so that the energy storage part is overcharged and damaged, and improving the reliability of the control circuit.

In any of the above solutions, the control circuit further includes: the third direct current converter comprises a first input end and a second input end, the first input end is connected with the first output circuit, and the second input end is connected with the second output circuit; and the thermal management circuit is connected with the output end of the third direct current converter.

In this technical solution, the thermal management circuit may be understood as a thermal management module, which may perform temperature protection on the energy storage element and/or the components in the control circuit, so as to ensure reliability of the control circuit and the energy storage device in which the control circuit is disposed.

Specifically, the thermal management circuit can detect the temperature of the energy storage element and/or the components in the control circuit, and output an abnormal prompt under the condition that the detected temperature value exceeds a temperature threshold value so as to prompt a user, reduce the probability of failure of the control circuit or the energy storage equipment where the control circuit is located due to overhigh temperature, and further realize the protection of the control circuit or the energy storage equipment where the control circuit is located.

In any of the above technical solutions, the circuit board further has a fourth interface, and the third dc converter further has a fourth enable end, where the fourth enable end is connected to the fourth interface; the circuit board is also used for adjusting the operation parameters of the third direct current converter through the fourth interface so as to adjust the output voltage of the third direct current converter.

In the technical scheme, the fourth interface and the fourth enabling end are arranged, so that the circuit board can adjust whether the third direct current converter outputs power supply and output voltage so as to obtain power supply conforming to the operation of the thermal management circuit, and the stable operation of the thermal management circuit is ensured.

In any of the above embodiments, the circuit board is a circuit board provided with a battery management system.

In this technical scheme, battery management system, battery Management System, BMS also is called battery nurse or battery manager, mainly is in order to intelligent management and maintain each battery unit (i.e. energy storage piece), prevents that the battery from appearing overcharging and overdischarging, prolongs the life of battery, monitors the state of battery. The BMS battery management system unit comprises a BMS battery management system, a control module, a display module, a wireless communication module, electrical equipment, a battery pack for supplying power to the electrical equipment and an acquisition module for acquiring battery information of the battery pack, wherein the BMS battery management system is respectively connected with the wireless communication module and the display module through communication interfaces, the output end of the acquisition module is connected with the input end of the BMS battery management system, the output end of the BMS battery management system is connected with the input end of the control module, and the control module is respectively connected with the battery pack and the electrical equipment.

According to a second aspect of the present utility model, there is provided an energy storage device comprising: an energy storage member; a control circuit for an energy storage device as claimed in any one of the preceding claims, the control circuit for the energy storage device being connected to the energy storage member.

In the above technical solution, the energy storage device further includes: and the fuse is positioned between the energy storage piece and the control circuit of the energy storage device.

In the technical scheme, the fuse is arranged so that the connection between the control circuit of the energy storage device and the energy storage device can be cut off under the condition that the discharge current or the charging current of the energy storage device is overlarge, thereby protecting the energy storage device and improving the safety of the energy storage device.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 illustrates one of the topological schematic diagrams of an energy storage device in an embodiment of the present utility model;

FIG. 2 illustrates a second topology of an energy storage device according to an embodiment of the present utility model;

FIG. 3 illustrates a third topology diagram of an energy storage device in accordance with an embodiment of the present utility model;

fig. 4 shows a fourth topology diagram of an energy storage device in an embodiment of the utility model.

The correspondence between the reference numerals and the component names in fig. 1 to 4 is:

100 energy storage devices, 102 energy storage devices, 200 energy storage device control circuits, 202 first direct current converters, 204 circuit boards, 206 first wake-up circuits, 208 second wake-up circuits, 210 second direct current converters, 2102 first output ends, 2104 second output ends, 212 third direct current converters, 2122 first input ends, 2124 second input ends, 214 thermal management circuits, 300 wake-up power supplies, A first enable ends, IO1 first interfaces, B second enable ends, IO2 second interfaces, 2042 first power supply ends, 2044 second power supply ends, IO3 third interfaces, C third enable ends, P+ first output lines, P-second output lines, K control switches, IO4 fourth interfaces, D fourth enable ends and F fuses.

Detailed Description

So that the manner in which the above recited aspects, features and advantages of the present utility model can be understood in detail, a more particular description of the utility model, briefly summarized below, may be had by reference to the appended drawings. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.

In one embodiment of the present utility model, as shown in fig. 1, there is provided a control circuit 200 of an energy storage device, the energy storage device 100 including an energy storage element 102, the control circuit including: the first direct current converter 202, the input end of the first direct current converter 202 is connected with the energy storage element 102; a circuit board 204, the circuit board 204 being connected to the output of the first dc converter 202; a first wake-up circuit 206 and/or a second wake-up circuit 208, the first wake-up circuit 206 being connected to the first dc converter 202, the second wake-up circuit 208 being connected to the circuit board 204, the first wake-up circuit 206 being for receiving a user input, the second wake-up circuit 208 being for connecting to the wake-up power supply 300; wherein, in case the first wake-up circuit 206 receives a user input, the first dc converter 202 supplies power to the circuit board 204; or in the case where the second wake-up circuit 208 is connected to the wake-up power supply 300, the second wake-up circuit 208 supplies power to the circuit board 204 to power up the circuit board 204.

Embodiments of the present utility model provide a control circuit 200 for an energy storage device, the control circuit including a first dc converter 202, a circuit board 204, a first wake-up circuit 206, and/or a second wake-up circuit 208.

Specifically, in one embodiment, the control circuit includes a first dc converter 202, a circuit board 204, and a first wake-up circuit 206.

Specifically, in one embodiment, the control circuit includes a first dc converter 202, a circuit board 204, and a second wake-up circuit 208.

Specifically, in one embodiment, the control circuit includes a first DC converter 202, a circuit board 204, a first wake-up circuit 206, and a second wake-up circuit 208.

In this embodiment, the first dc converter 202 stops supplying power to the circuit board 204 to power down the circuit board 204 when the energy storage device 100 is not operating. Because the circuit board 204 is powered down, it no longer generates electrical energy loss, thereby reducing the electrical energy consumption on the energy storage element 102 in the energy storage device 100, and reducing the probability of damage to the energy storage element 102 due to overdischarge, thereby protecting the energy storage element 102.

In addition, the energy storage device 100 applying the embodiment of the present utility model has the characteristic of low self-power consumption, and under the condition that the electric energy stored by the energy storage element 102 is the same, the energy storage device 100 has a longer storage duration and a duration of being kept in the transportation mode, so that the service life of the energy storage device 100 is prolonged.

In the above embodiment, the energy storage element 102 may be understood as a device for storing electric energy, which is capable of outputting direct current, so that the first direct current converter 202 performs voltage conversion on the output direct current to obtain direct current meeting the power supply requirement of the circuit board 204.

The first dc converter 202, i.e., a dc converter, a DCDC converter, is a device for converting between high voltage and low voltage dc, and means a device for converting a dc power supply of a certain voltage level into a dc power supply of another voltage level. Wherein DC, english is Direct Current.

Upon receiving a user input, based on the connection of the first wake-up circuit 206 to the first dc converter 202, the first wake-up circuit 206 can trigger the first dc converter 202 to operate to power the circuit board 204 and exit the powered-down state, thereby enabling power-up. In this process, the user may actively input according to the actual usage requirement, so as to trigger the first wake-up circuit 206 to activate the circuit board 204 to power up, so that the energy storage device 100 operates.

In one embodiment, the first wake-up circuit 206 is a button and the user input is a push button, where the first dc converter 202 outputs 12 volts to the circuit board 204.

By setting the second wake-up circuit 208, by using the connection relationship between the second wake-up circuit 208 and the circuit board 204, the user can connect with the second wake-up circuit 208 through the external wake-up power supply 300, and directly supply power to the circuit board 204, so as to activate the circuit board 204, so that the energy storage device 100 operates.

In this process, two ways of waking up the circuit board 204 are provided to enable the energy storage device 100 to adapt to the usage requirements of different scenarios.

In the above embodiments, the wake-up power supply 300 may be understood as a power supply for powering the circuit board 204, and may be understood as an unsustainable power supply, such as a battery, a power converter. The selection can be performed according to actual scenes and actual use needs, and detailed description is omitted here.

In the above embodiment, as shown in fig. 2, the first dc converter 202 includes a first enable terminal a, and the circuit board 204 has a first interface IO1, where the first interface IO1 is connected to the first enable terminal a; after the circuit board 204 is powered on, the circuit board 204 controls the first dc converter 202 to operate through the first interface IO 1.

In this embodiment, the first enabling terminal a and the first interface IO1 are provided so that the circuit board 204 can control the operation state of the first dc converter 202, so that the first dc converter 202 can provide stable power to the circuit board 204 to drive the stable operation of the circuit board 204.

In the above embodiment, the first interface IO1 is an input/output interface of the circuit board 204.

In one embodiment, the circuit board 204 locks the first dc converter 202 to stabilize the output power through the first interface IO 1.

In any of the above embodiments, as shown in fig. 2, the first dc converter 202 further includes a second enabling terminal B, the circuit board 204 further includes a second interface IO2, and the first wake-up circuit 206 is connected to the second enabling terminal B and the second interface IO 2; in the case that the first wake-up circuit 206 receives the user input, the circuit board 204 determines that the wake-up mode is the first mode through the second interface IO2, and controls the first dc converter 202 to operate through the first interface IO 1.

In this embodiment, by setting the second enabling terminal B so that the first wake-up circuit 206 can realize control of the operation state of the first dc converter 202 through the second enabling terminal B, as in the case where the first wake-up circuit 206 receives a user input, the first wake-up circuit 206 can react the user input to the first dc converter 202 based on the above connection relationship so that the first dc converter 202 can output a voltage to supply the circuit board 204 with power.

By setting the second interface IO2, in order that, in the case that the first wake-up circuit 206 receives a user input, the circuit board 204 can sense the power supply manner thereof through the second interface IO2, that is, trigger the first dc converter 202 to supply power thereto through the first wake-up circuit 206, and further realize the control of the first dc converter 202 through the first interface IO1, so that the first dc converter 202 can stably supply power thereto.

In the above embodiment, the first dc converter 202 includes the isolated step-down circuit.

In any of the above embodiments, as shown in fig. 3, the circuit board 204 has a first power supply terminal 2042, a second power supply terminal 2044, and a third interface IO3; the second wake-up circuit 208 includes a second dc converter 210, where the second dc converter 210 includes a first output end 2102, a second output end 2104, and a third enabling end C, the first output end 2102 is connected to the first power supply end 2042, the second output end 2104 is connected to the second power supply end 2044, the third interface IO3 is connected to the third enabling end C, and in the case where the second wake-up circuit 208 is connected to the wake-up power supply 300, the circuit board 204 determines that the wake-up mode is the second mode through the third interface IO3, controls the first dc converter 202 to operate through the first interface IO1, and controls the second dc converter 210 to stop operating through the third interface IO 3.

In this embodiment, the second wake-up circuit 208 includes a second dc converter 210 to utilize the second dc converter 210 to convert the dc power output by the wake-up power source 300 to a voltage that can be used to power the circuit board 204.

For example, after the wake-up power supply 300 is connected to the second wake-up circuit 208, the second dc converter 210 outputs 12 volts to the circuit board 204 to operate the circuit board 204.

After the third enabling terminal C and the third interface IO3 are set so that the second dc converter 210 is connected to the wake-up power supply 300 and supplies power to the circuit board 204, a signal can be transmitted to the circuit board 204 based on the connection between the third enabling terminal C and the third interface IO3, so that the circuit board 204 knows the power supply mode thereof, that is, the second mode. And further controls the operation of the first dc converter 202 and the second dc converter 210 according to the power supply manner thereof.

Specifically, the power supply of the wake-up power supply 300 is cut off by controlling the first dc converter 202 to operate so that the first dc converter 202 outputs a voltage suitable for the operation of the circuit board 204 to provide a stable power thereto, and by controlling the second dc converter 210 to stop operating.

In this process, the circuit board 204 can select the operation and stop of the dc converter according to the wake-up mode, so as to realize stable power supply of the circuit board 204 and ensure the stability of the control circuit during operation.

In one embodiment, the second dc converter 210 includes an isolated buck circuit.

In this embodiment, by using the isolated step-down circuit, the impact of the wake-up power supply 300 on the control circuit can be reduced, the control circuit is protected, and the reliability of the control circuit is improved.

In any of the above embodiments, the control circuit further includes: a first output line p+ connected to a first end b+ of the energy storage member 102; a second output line P-connected to a second end B-of the energy storage member 102; the control switch K is positioned on the first output line P+ or the second output line P-and is connected with the circuit board 204; after the circuit board 204 is powered on, the circuit board 204 is further used to control the control switch K to be turned on and off.

In this embodiment, the first output line p+ and the second output line P-may be understood as bus bars that supply power to the energy storage 102 from outside and/or take power from outside to charge the energy storage 102.

By setting the control switch K, after the circuit board 204 is powered on, the on/off of the first output line p+ or the second output line P-is realized by switching on/off the control switch K, so as to control whether the energy storage member 102 is powered outwards or whether power is taken from the outside.

In the above embodiment, the control switch K may be a relay, such as a normally open relay.

In this embodiment, after the circuit board 204 is powered up, the control switch K is driven to be closed so as to control whether the energy storage member 102 is powered outwards, and in this process, the probability of damage caused by overdischarge of the energy storage member 102 is reduced.

Similarly, after the circuit board 204 is powered on, the control switch K is driven to be closed so as to control whether the energy storage element 102 is powered off from the outside, thereby avoiding the situation that the energy storage element 102 is directly charged under the condition that the circuit board 204 is not powered on, so that the energy storage element 102 is overcharged and damaged, and improving the reliability of the control circuit.

In any of the above embodiments, as shown in fig. 4, the control circuit further includes: the third dc converter 212, the third dc converter 212 includes a first input terminal 2122 and a second input terminal 2124, the first input terminal 2122 is connected to the first output line p+ and the second input terminal 2124 is connected to the second output line P-; thermal management circuitry 214 is coupled to the output of third dc converter 212.

In this embodiment, the thermal management circuitry 214, which may be understood as a thermal management module, may provide temperature protection for the energy storage 102 and/or components in the control circuitry, thereby ensuring reliability of the control circuitry and the energy storage device 100 in which the control circuitry is disposed.

Specifically, the thermal management circuit 214 can detect the temperature of the energy storage element 102 and/or the components in the control circuit, and output an abnormal alert when the detected temperature value exceeds the temperature threshold value, so as to alert a user, reduce the probability of failure of the control circuit or the energy storage device 100 where the control circuit is located due to over-high temperature, and thereby realize protection of the control circuit or the energy storage device 100 where the control circuit is located.

In the above embodiment, the third dc converter 212 includes the isolated step-down circuit.

In any of the above embodiments, the circuit board 204 further has a fourth interface IO4, and the third dc converter 212 further has a fourth enabling terminal D, where the fourth enabling terminal D is configured to be connected to the fourth interface IO 4; the circuit board 204 is further configured to adjust an operation parameter of the third dc converter 212 through the fourth interface IO4 to adjust an output voltage of the third dc converter 212.

In this embodiment, the fourth interface IO4 and the fourth enabling terminal D are provided, so that the circuit board 204 can adjust whether the third dc converter 212 outputs the power supply and the output voltage, so as to obtain the power supply that conforms to the operation of the thermal management circuit 214, thereby ensuring the stable operation of the thermal management circuit 214.

For example, the third DC converter 212 outputs 24 volts to the thermal management circuit 214 to operate the thermal management circuit 214.

In any of the above embodiments, the circuit board 204 is a circuit board provided with a battery management system.

In this embodiment, the battery management system Battery Management System, BMS, also called a battery care provider or battery manager, is mainly used to intelligently manage and maintain each battery unit (i.e., the energy storage member 102), prevent the battery from being overcharged and overdischarged, prolong the service life of the battery, and monitor the state of the battery. The BMS battery management system unit comprises a BMS battery management system, a control module, a display module, a wireless communication module, electrical equipment, a battery pack for supplying power to the electrical equipment and an acquisition module for acquiring battery information of the battery pack, wherein the BMS battery management system is respectively connected with the wireless communication module and the display module through communication interfaces, the output end of the acquisition module is connected with the input end of the BMS battery management system, the output end of the BMS battery management system is connected with the input end of the control module, and the control module is respectively connected with the battery pack and the electrical equipment.

In this embodiment, the battery management system performs abnormality detection on the charge and discharge, and in the case where an abnormality is detected, controls the first dc converter 202 to stop outputting the power supply, and in the case where an abnormality is not detected, keeps the first dc converter 202 outputting the power supply.

In one embodiment, the present utility model provides an energy storage device 100 comprising: an energy storage member 102; the control circuit 200 of the energy storage device according to any of the above claims, wherein the control circuit 200 of the energy storage device is connected to the energy storage element 102.

In the above embodiment, the energy storage device 100 further includes: a fuse F is located between the energy storage 102 and the control circuit 200 of the energy storage device.

In this embodiment, the fuse F is provided, so that the connection between the control circuit 200 of the energy storage device and the energy storage device 102 can be cut off when the discharge current or the charge current of the energy storage device 102 is too large, thereby protecting the energy storage device 102 and improving the safety of the energy storage device 100.

In one embodiment, the energy storage member 102 includes N cells, where N cells are connected in series, and N is a positive integer greater than or equal to 1.

Specifically, the energy storage member 102 is configured by connecting a cell C1, a cell C2, a cell C3, a cell C4, and a cell C5 … … in series with a cell Cn.

The features of the utility model "first", "second" and the like in the description and in the claims may be used for the explicit or implicit inclusion of one or more such features. In the description of the utility model, unless otherwise indicated, the meaning of "a plurality" is two or more. In addition, in the specification and claims, "and/or" means at least one of the connected objects, and the character "/", generally means a relationship in which the associated objects are one or.

In the description of the present utility model, it will be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate describing and simplifying the description of the embodiments of the present utility model, and do not indicate or imply that the structures, devices, elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore these descriptions should not be construed as limiting the utility model.

In the description of the present utility model, it is to be understood that the terms "mounted," "connected," and "connected" are to be construed broadly, as well as expressly specified and defined, and as such, may be fixedly connected, detachably connected, or integrally connected, for example; the mechanical structure connection and the electrical connection can be adopted; the two components can be directly connected or indirectly connected through an intermediate medium, or the two components are internally communicated. The specific meaning of the above terms in the present utility model will be understood in specific cases by those skilled in the art.

In the claims, specification, and drawings of the present utility model, the descriptions of terms "one embodiment," "some embodiments," "particular embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In the claims, specification and drawings of the present utility model, the schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A control circuit for an energy storage device, the energy storage device comprising an energy storage element, the control circuit comprising:

the input end of the first direct current converter is connected with the energy storage piece;

the circuit board is connected with the output end of the first direct current converter;

the first wake-up circuit is connected with the first direct current converter, the second wake-up circuit is connected with the circuit board, the first wake-up circuit is used for receiving user input, and the second wake-up circuit is used for being connected with a wake-up power supply;

wherein, the first DC converter supplies power to the circuit board under the condition that the first wake-up circuit receives the user input; or in the case that the second wake-up circuit is connected to the wake-up power supply, the second wake-up circuit supplies power to the circuit board for powering up the circuit board.

2. The control circuit of an energy storage device of claim 1, wherein the first dc converter includes a first enable terminal, the circuit board having a first interface, the first interface being connected to the first enable terminal;

after the circuit board is electrified, the circuit board controls the first direct current converter to operate through the first interface.

3. The control circuit of an energy storage device of claim 2, wherein the first dc converter further comprises a second enable terminal, the circuit board further has a second interface, and the first wake-up circuit is connected to the second enable terminal and the second interface;

and under the condition that the first wake-up circuit receives the user input, the circuit board determines that the wake-up mode is a first mode through the second interface, and controls the first direct current converter to operate through the first interface.

4. The control circuit of an energy storage device of claim 2, wherein the circuit board has a first power terminal, a second power terminal, and a third interface;

the second wake-up circuit comprises a second DC converter, the second DC converter comprises a first output end, a second output end and a third enabling end, the first output end is connected with the first power supply end, the second output end is connected with the second power supply end, the third interface is connected with the third enabling end,

and under the condition that the second wake-up circuit is connected to the wake-up power supply, the circuit board determines that the wake-up mode is a second mode through the third interface, controls the first direct current converter to operate through the first interface, and controls the second direct current converter to stop operating through the third interface.

5. The control circuit of an energy storage device of any of claims 1-4, further comprising:

the first output line is connected with the first end of the energy storage piece;

the second output line is connected with the second end of the energy storage piece;

the control switch is positioned on the first output line or the second output line and is connected with the circuit board;

after the circuit board is electrified, the circuit board is also used for controlling the control switch to be conducted and closed.

6. The control circuit of an energy storage device of claim 5, further comprising:

the third direct current converter comprises a first input end and a second input end, the first input end is connected with the first output circuit, and the second input end is connected with the second output circuit;

and the thermal management circuit is connected with the output end of the third direct current converter.

7. The control circuit of an energy storage device of claim 6, wherein the circuit board further has a fourth interface, the third dc converter further having a fourth enable terminal for connection with the fourth interface;

the circuit board is further used for adjusting the operation parameters of the third direct current converter through the fourth interface so as to adjust the output voltage of the third direct current converter.

8. The control circuit of an energy storage device according to any one of claims 1 to 4, wherein the circuit board is a circuit board provided with a battery management system.

9. An energy storage device, comprising:

an energy storage member;

the control circuit of an energy storage device of any one of claims 1 to 8, the control circuit of the energy storage device being connected to the energy storage element.

10. The energy storage device of claim 9, further comprising:

and the fuse is positioned between the energy storage piece and the control circuit of the energy storage device.