Energy storage device toppling detection circuit and energy storage device

Abstract

The utility model relates to the technical field of energy storage power supply mainly provides energy storage equipment toppling detection circuit and energy storage equipment, the circuit includes drive module, and the control module and detection module connected with drive module, detection module and drive module still all are connected with first power supply, and control module still is connected with controller. Detection module is used for receiving the first voltage of first power supply output, and when the inclination angle of energy storage equipment is less than the preset angle, the first voltage is released to avoid the false triggering of controller when energy storage equipment is placed horizontally, and when greater than the preset angle, the first voltage is input to drive module after the delay preset time, so that drive module outputs drive signal to control module when the first voltage is greater than voltage threshold, thereby controlling control module to output abnormal signal to controller based on drive signal, and then making controller cut off the charge and discharge function of energy storage equipment according to abnormal signal, avoiding the emergence of short circuit situation due to toppling, and improving the safety of energy storage equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of energy storage power supply, and in particular to an energy storage device tilt detection circuit and energy storage device. Background Technology

[0002] With the rapid development of the new energy industry, energy storage devices have been widely used in scenarios such as home backup power and outdoor work power supply. In actual use, energy storage devices often tip over or fall due to unstable placement, accidental collisions, or improper handling. When the energy storage device is tilted at an excessive angle, the exposed output port may come into contact with metal objects (such as keys, tools, or other equipment casings), causing an external short circuit, generating a large current and electric arc, which in turn leads to an internal short circuit in the battery. The large amount of heat generated by the battery short circuit will quickly disrupt the battery's thermal equilibrium, triggering a thermal runaway chain reaction, which may ultimately cause the device to catch fire or explode, posing a serious threat to the surrounding environment.

[0003] Therefore, in order to improve the safety and service life of energy storage devices, it is necessary to provide a tilt detection circuit for energy storage devices. Utility Model Content

[0004] This utility model provides a tilt detection circuit and energy storage device, aiming to solve the technical problem that energy storage devices are prone to short circuits after tilting, resulting in reduced safety and shorter service life.

[0005] To solve the above-mentioned technical problems, one technical solution adopted by this utility model is: to provide a tilt detection circuit for energy storage devices, wherein the tilt detection circuit for energy storage devices includes a detection module, a drive module and a control module;

[0006] The detection module is connected to the drive module, the drive module is connected to the control module, the detection module and the drive module are also connected to the first power supply, and the control module is also connected to the controller.

[0007] The detection module is used to receive the first voltage output by the first power source and to detect the tilt angle of the energy storage device in real time, so as to release the first voltage when the tilt angle is less than a preset angle; and

[0008] When the tilt angle is greater than a preset angle, the first voltage is input to the drive module after a preset time delay;

[0009] The driving module is used to receive a first voltage after a preset delay time, and output a driving signal to the control module when the first voltage is greater than a voltage threshold.

[0010] The control module is used to receive the drive signal and start working based on the drive signal, thereby outputting an abnormal signal to the controller.

[0011] Optionally, the detection module includes a detection unit and a delay unit;

[0012] The detection unit is connected to the delay unit, and the delay unit is also connected to the drive module. Both the detection unit and the delay unit are also used to connect to the first power supply.

[0013] The detection unit is used to detect the tilt angle of the energy storage device in real time, and starts working when the tilt angle is less than a preset angle to discharge the first voltage of the first power supply; and

[0014] The operation stops when the tilt angle is greater than a preset angle, so that the first voltage is input to the delay unit;

[0015] The delay unit is used to delay the first voltage for a preset time before inputting it to the drive module when the first voltage is received.

[0016] Optionally, the detection unit includes a resistor R4 and a normally closed tilt sensor;

[0017] The normally closed tilt sensor is connected to the delay unit via the resistor R4, which is also used to connect to the first power supply.

[0018] Optionally, the delay unit includes a capacitor C1 and a resistor R5;

[0019] The first end of capacitor C1 is connected to resistor R4 and the driving module, the first end of resistor R5 is connected to resistor R4 and the detection unit, and the second end of capacitor C1 and the second end of resistor R5 are used for grounding.

[0020] Optionally, the drive module includes a switching transistor Q1, a Zener diode D2A, a resistor R2, and a resistor R3;

[0021] The control terminal of the switching transistor Q1 is connected to the detection module. The first terminal of the switching transistor Q1 is connected to the control module through the resistor R3. The resistor R3 is also connected to the first power supply through the resistor R2. The second terminal of the switching transistor Q1 is connected to the cathode of the Zener diode D2A. The anode of the Zener diode D2A is used for grounding.

[0022] Optionally, the control module includes a switching unit, a relay K1, and a control unit;

[0023] The switching unit is connected to the driving module. The switching unit is also connected to the first power supply and the coil terminal of the relay K1. The connection terminal of the relay K1 is connected to the first power supply and the control unit. The control unit is also connected to the controller.

[0024] The switching unit is used to, upon receiving the drive signal, conduct based on the drive signal to input the first voltage to the coil terminal of the relay K1, thereby controlling the relay K1 to engage; and

[0025] When no drive signal is received, the relay K1 is turned off to control the relay K1 to disconnect.

[0026] The control unit is used to output an abnormal signal to the controller when the relay K1 is activated; and

[0027] The output of the abnormal signal stops when the relay K1 is disconnected.

[0028] Optionally, the control unit includes a switch Q3, resistors R8, R9, and R10;

[0029] The control terminal of the switch Q3 is connected to the connection terminal of the relay K1 through the resistor R9. The first terminal of the switch Q3 is connected to the controller through the resistor R10. The resistor R10 is also connected to the resistor R8. The resistor R8 is connected to the second power supply. The second terminal of the switch Q3 is used for grounding.

[0030] Optionally, the tilt detection circuit of the energy storage device further includes an indicator module;

[0031] The indicator module is connected to the connection terminal of the relay K1, and the indicator module is also used to connect to the first power supply;

[0032] The indicating module is used to output a first indicating signal when the relay K1 is closed; and

[0033] When the relay K1 is disconnected, a second indication signal is output.

[0034] Optionally, the indicator module includes resistor R6, resistor R7, and light-emitting diode LED1;

[0035] The resistor R6 is connected to the first power supply and the anode of the light-emitting diode LED1, and the cathode of the light-emitting diode LED1 is connected to the connection terminal of the relay K1.

[0036] To solve the above-mentioned technical problems, another technical solution adopted in this utility model embodiment is: to provide an energy storage device, the energy storage device comprising:

[0037] Controller; and

[0038] The energy storage device tilt detection circuit described above.

[0039] Unlike related technologies, this utility model provides a tilt detection circuit and an energy storage device. The tilt detection circuit includes a detection module, a drive module, and a control module. The detection module is connected to the drive module, the drive module is connected to the control module, and both the detection module and the drive module are connected to a first power supply. The control module is also connected to a controller. The detection module receives a first voltage output from the first power supply and detects the tilt angle of the energy storage device in real time. When the tilt angle is less than a preset angle, the first voltage is released, thereby preventing the controller from shutting down the charging and discharging function of the energy storage device when it is placed horizontally. When the tilt angle is greater than the preset angle, the detection module delays the first voltage input to the drive module by a preset time, so that the drive module outputs a drive signal to the control module when the first voltage is greater than a voltage threshold, thereby avoiding false triggering caused by instantaneous tilting. When the control module receives the drive signal, it will output an abnormal signal to the controller based on the drive signal, so that the controller will cut off the charging and discharging function of the energy storage device after receiving the abnormal signal, thereby avoiding short circuits caused by tipping and improving the safety of the energy storage device. Attached Figure Description

[0040] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0041] Figure 1 This is a structural block diagram of an energy storage device provided in an embodiment of the present utility model;

[0042] Figure 2 This is a structural block diagram of a tilt detection circuit for an energy storage device provided in an embodiment of the present invention;

[0043] Figure 3 This is a circuit diagram of a tilt detection circuit for an energy storage device provided in an embodiment of this utility model. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0045] The technical features involved in the various embodiments of this application described below do not conflict with each other and can be combined with each other.

[0046] When an element is described as "connected" to another element, it can be directly connected to the other element, or there may be one or more intervening elements between them.

[0047] The terms "first," "second," etc., used in the specification and claims of this utility model are used to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, the first object can be one or more.

[0048] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0049] Please see Figure 1 , Figure 1 This is a structural block diagram of an energy storage device provided in an embodiment of the present invention, as shown below. Figure 1 As shown, the energy storage device 100 includes a controller 10 and an energy storage device tilt detection circuit 20, wherein the controller 10 is connected to the energy storage device tilt detection circuit 20.

[0050] Among them, such as Figure 1As shown, the energy storage device 100 also includes a charging / discharging circuit 30 and a battery 40. The charging / discharging circuit 30 is connected to the battery 40 and the controller 10, respectively. The charging / discharging circuit 30 receives the charging / discharging control signal output by the controller 10 and charges / discharges the battery 40 based on the charging / discharging control signal. It should be noted that if the energy storage device 100 tilts during use, it is prone to short circuits and other accidents. Therefore, the tilt detection circuit 20 detects the tilt angle of the energy storage device 100 in real time, and determines that the energy storage device 100 has tilted when the detected tilt angle is greater than a preset angle. At this time, to avoid short circuits and other accidents, the tilt detection circuit 20 outputs an abnormal signal to the controller 10, causing the controller 10 to stop the charging / discharging circuit 30 from operating. When the charging and discharging circuit 30 stops working, even if the energy storage device 100 experiences an internal short circuit, it will not generate a large current or electric arc, thereby improving the safety of the energy storage device 100.

[0051] In some embodiments, please refer to Figure 2 , Figure 2 This is a structural block diagram of a tilt detection circuit for an energy storage device provided in an embodiment of this utility model, as shown below. Figure 2 As shown, the energy storage device tilt detection circuit 20 includes a detection module 21, a drive module 22, and a control module 23;

[0052] The detection module 21 is connected to the drive module 22, the drive module 22 is connected to the control module 23, the detection module 21 and the drive module 22 are also connected to the first power supply 50, and the control module 23 is also connected to the controller 10.

[0053] The detection module 21 is used to receive the first voltage output by the first power supply 50 and to detect the tilt angle of the energy storage device 100 in real time, so as to release the first voltage when the tilt angle is less than a preset angle; and

[0054] When the tilt angle is greater than a preset angle, the first voltage is input to the drive module 22 after a preset time delay;

[0055] The driving module 22 is used to receive a first voltage after a preset delay time, and output a driving signal to the control module 23 when the first voltage is greater than a voltage threshold.

[0056] The control module 23 is used to receive the drive signal and start working based on the drive signal, thereby outputting an abnormal signal to the controller 10.

[0057] Specifically, the tilt detection circuit 20 of the energy storage device is disposed inside the energy storage device 100. When the energy storage device 100 is working, the detection module 21 receives the first voltage output by the first power supply 50 and detects the tilt angle of the energy storage device 100 in real time. If the tilt angle of the energy storage device 100 is less than a preset angle, it is confirmed that the energy storage device 100 is in a horizontal position and has not tilted. At this time, the detection module 21 discharges the received first voltage, thereby enabling the controller 10 to control the energy storage device 100 to work normally.

[0058] When the tilt angle of the energy storage device 100 is greater than a preset angle, it is considered that the energy storage device 100 has tipped over. At this time, the detection module 21 will start charging based on the first voltage, and input the first voltage to the drive module 22 after a preset time delay. When the drive module 22 receives the first voltage after the preset time delay, it will determine whether the first voltage is greater than a voltage threshold. If the first voltage is greater than the voltage threshold, it will start working based on the first voltage, thereby outputting a drive signal to the control module 23. When the control module 23 receives the drive signal, it will start working based on the drive signal, thereby outputting an abnormal signal to the controller 10. When the controller 10 receives the abnormal signal, it will control the charging and discharging circuit 30 to stop working based on the abnormal signal, thereby protecting the energy storage device 100.

[0059] In some embodiments, such as Figure 2 As shown, the detection module 21 includes a detection unit 211 and a delay unit 212;

[0060] The detection unit 211 is connected to the delay unit 212, and the delay unit 212 is also connected to the drive module 22. Both the detection unit 211 and the delay unit 212 are also used to connect to the first power supply 50.

[0061] The detection unit 211 is used to detect the tilt angle of the energy storage device 100 in real time, and starts working when the tilt angle is less than a preset angle to discharge the first voltage of the first power supply 50; and

[0062] The operation stops when the tilt angle is greater than a preset angle, so that the first voltage is input to the delay unit 212;

[0063] The delay unit 212 is used to input the first voltage to the drive module 22 after delaying the first voltage by a preset time when the first voltage is received.

[0064] Specifically, when the energy storage device 100 starts working, the first power supply 50 outputs a first voltage in real time, and the detection unit 211 also detects the tilt angle of the energy storage device 100 in real time. When the tilt angle of the energy storage device 100 is less than a preset angle, the detection unit 211 starts working, thereby discharging the first voltage from the first power supply 50, which in turn causes the drive module 22 to stop working. When the tilt angle is greater than the preset angle, it is determined that the energy storage device 100 has tipped over, and the detection unit 211 stops working, thereby stopping receiving the first voltage. At this time, the delay unit 212 receives the first voltage output by the first power supply 50 and inputs the first voltage to the drive module 22 after a preset delay. It should be noted that when the detection unit 211 detects that the energy storage device 100 has tipped over, since the energy storage device 100 may tip over momentarily (and be righted immediately after tipping over), if the drive module 22 starts working at this time, it will cause the controller 10 to malfunction. Therefore, in order to improve the accuracy of tilt detection of the energy storage device 100, a delay unit 212 is introduced. The first voltage is input to the drive module 22 after a preset delay by the delay unit 212, thereby delaying the start time of the drive module 22 and the time for the controller 10 to receive the abnormal signal. This avoids the situation where the energy storage device 100 stops working due to instantaneous tilt, thereby improving the reliability of the energy storage device 100.

[0065] In some embodiments, please refer to Figure 3 , Figure 3 This is a circuit diagram of a tilt detection circuit for an energy storage device provided in an embodiment of this utility model, as shown below. Figure 3 As shown, the detection unit 211 includes a resistor R4 and a normally closed tilt sensor; the delay unit 221 includes a capacitor C1 and a resistor R5.

[0066] The normally closed tilt sensor is connected to the delay unit 212 via the resistor R4, which is also used to connect to the first power supply (VCC).

[0067] The first end of the capacitor C1 is connected to the resistor R4 and the driving module 22 respectively. The first end of the resistor R5 is connected to the resistor R4 and the detection unit 211 respectively. The second end of the capacitor C1 and the second end of the resistor R5 are used for grounding.

[0068] It should be noted that the normally closed tilt sensor is in a closed state when the tilt angle is less than the preset angle, and will be in an open state when the detected tilt angle is greater than the preset angle.

[0069] When the energy storage device 100 is operating, the normally closed tilt sensor will detect the tilt angle of the energy storage device 100 in real time. When the normally closed tilt sensor detects that the tilt angle is less than a preset angle, it is considered that the energy storage device 100 is in a normal placement state. At this time, the normally closed tilt sensor will receive the first voltage output by the first power supply through the resistor R4 and discharge the first voltage, thereby preventing the drive module 22 from starting to work.

[0070] When the tilt angle is greater than a preset angle, the energy storage device 100 is considered to be in a tilted state. At this time, the normally closed tilt sensor is in an open state, thereby stopping the reception of the first voltage output from the first power source. After the normally closed tilt sensor stops receiving the first voltage, the first voltage is input to the capacitor C1 to charge the capacitor C1. After the capacitor C1 is fully charged, the capacitor C1 inputs the first voltage to the drive module 22, thereby delaying the input of the first voltage to the drive module 22 by a preset time. It can be seen that the preset time is determined based on the capacitance value of the capacitor C1 and the resistance value of the resistor R5. Therefore, by adjusting the capacitance value of the capacitor C1 and the resistance value of the resistor R5, the time for the drive module 22 to receive the first voltage can be controlled.

[0071] In yet another embodiment, such as Figure 3 As shown, the detection module 21 also includes a diode D1 and a resistor R1. The anode of the diode D1 is connected to the first power supply through the resistor R1. The anode of the diode D1 is also connected to the driving module 22. The cathode of the diode D1 is connected to the resistor R4 and the capacitor C1 respectively.

[0072] In some embodiments, such as Figure 3 As shown, the drive module 22 includes a switching transistor Q1, a Zener diode D2A, a resistor R2, and a resistor R3;

[0073] The control terminal of the switching transistor Q1 is connected to the detection module 21. The first terminal of the switching transistor Q1 is connected to the control module 23 through the resistor R3. The resistor R3 is also connected to the first power supply (VCC) through the resistor R2. The second terminal of the switching transistor Q1 is connected to the cathode of the Zener diode D2A. The anode of the Zener diode D2A is used for grounding.

[0074] When the detection module 21 inputs the first voltage delay preset time to the drive module 22, the control terminal of the switch Q1 receives the first voltage and determines whether the first voltage is greater than a voltage threshold (the sum of the conduction threshold of the switch Q1 and the voltage regulation value of the Zener diode D2A). When the first voltage is greater than the voltage threshold, the switch Q1 is turned on, thereby outputting a drive signal to the control module 23. If the first voltage is less than the voltage threshold, the switch Q1 is turned off, thereby stopping the output of the drive signal.

[0075] In yet another embodiment, such as Figure 2 As shown, the control module 23 includes a switch unit 231, a relay K1, and a control unit 232;

[0076] The switching unit 231 is connected to the driving module 22. The switching unit 231 is also connected to the first power supply and the coil terminal of the relay K1. The connection terminal of the relay K1 is connected to the first power supply and the control unit 232. The control unit 232 is also connected to the controller 10.

[0077] The switching unit 231 is used to, upon receiving the driving signal, conduct based on the driving signal to input the first voltage to the coil terminal of the relay K1, thereby controlling the relay K1 to engage; and

[0078] When no drive signal is received, the relay K1 is turned off to control the relay K1 to disconnect.

[0079] The control unit 232 is used to output an abnormal signal to the controller 10 when the relay K1 is activated; and

[0080] The output of the abnormal signal stops when the relay K1 is disconnected.

[0081] Specifically, when the drive module 22 outputs a drive signal, the switch unit 231 receives the drive signal and turns on based on the drive signal. When the switch unit 231 turns on, the first voltage of the first power supply is input to the coil terminal of the relay K1 through the switch unit 231, energizing the coil terminal of the relay K1 and causing the relay K1 to engage. When the relay K1 engages, the control unit 232 starts working, thereby outputting an abnormal signal to the controller 10. When the controller 10 receives the abnormal signal, it controls the charging / discharging circuit 30 to stop working based on the abnormal signal, thereby preventing a large current from being generated due to a short circuit and protecting the energy storage device 100.

[0082] If the drive module 22 does not output a drive signal, the switch unit 231 is in the off state, thereby causing the relay K1 to disconnect. When the relay K1 is disconnected, the control unit 232 also stops working. At this time, the controller 10 does not receive any abnormal signals, thus allowing the energy storage device 100 to operate normally.

[0083] In some real-time examples, the control unit 232 is also connected to a second power source (not shown). When the relay K1 is disconnected, the control unit 232 outputs a normal signal to the controller 10 based on the second voltage of the second power source, so that the controller 10 controls the energy storage device 100 to operate normally based on the normal signal. It should be noted that the voltage of the second power source is lower than the voltage of the first power source. By outputting a normal signal to the controller 10 based on the second power source when the energy storage device 100 is detected to be in a state of horizontal displacement, the controller 10 avoids erroneous control due to signal interference, thereby improving the reliability of the energy storage device 100.

[0084] In some embodiments, such as Figure 3 As shown, the switching unit 231 is a switching transistor Q2; the control unit 232 includes a switching transistor Q3, a resistor R8, a resistor R9, and a resistor R10.

[0085] The control terminal of the switching transistor Q2 is connected to the drive module 22, the first terminal of the switching transistor Q2 is connected to the first power supply, and the second terminal of the switching transistor Q2 is connected to the coil terminal of the relay K1.

[0086] The control terminal of the switch Q3 is connected to the connection terminal of the relay K1 through the resistor R9. The first terminal of the switch Q3 is connected to the controller 10 through the resistor R10. The resistor R10 is also connected to the resistor R8. The resistor R8 is connected to the second power supply (VDD). The second terminal of the switch Q3 is used for grounding.

[0087] Specifically, when the drive module 22 outputs a drive signal, the control terminal of the switch Q2 receives the drive signal and turns on based on the drive signal. When the switch Q2 turns on, the first power supply, the switch Q2, and the coil terminal of the relay K1 form a circuit, thereby allowing current to flow through the coil terminal of the relay K1, and the relay K1 is energized. When the relay K1 is energized, the switch Q3 receives the first voltage from the first power supply through the resistor R9 and turns on based on the first voltage. When the switch Q3 turns on, the controller 10 receives a low-level signal (abnormal signal) and determines that the energy storage device 100 has tipped over based on the low-level signal, thereby controlling the charging and discharging circuit 30 to stop working. Based on this, a timely response can be made when the energy storage device 100 tipps over, thereby avoiding safety accidents such as short circuits in the energy storage device.

[0088] If the drive module 22 does not output a drive signal, the switch Q2 is in the off state. When the switch Q2 is in the off state, the relay K1 is also in the open state, and the switch Q3 is also turned off, thereby stopping the output of abnormal signals to the controller 10. When the switch Q3 is turned off, the controller 10 receives the second voltage (normal signal) output by the second power supply based on the resistor R8. Upon receiving the second voltage, the controller 10 can confirm that the energy storage device 100 is placed horizontally, thereby controlling the energy storage device 100 to operate normally.

[0089] In yet another embodiment, such as Figure 2 As shown, the energy storage device tilt detection circuit 20 also includes an indicator module 24;

[0090] The indicator module 24 is connected to the connection terminal of the relay K1, and the indicator module 24 is also used to connect to the first power supply;

[0091] The indicating module 24 is used to output a first indicating signal when the relay K1 is closed; and

[0092] When the relay K1 is disconnected, a second indication signal is output.

[0093] Specifically, when the switching unit 231 is turned on based on the drive signal, the relay K1 is energized. At this time, the first voltage of the first power supply is input to the indicator module 24, causing the indicator module 24 to output a first indicator signal to indicate that the energy storage device 100 has tipped over. If the relay K1 is in the off state, the indicator module 24 will output a second indicator signal. Based on this, in actual use, the user can determine whether the energy storage device 100 has tipped over by observing the indicator signal output by the indicator module 24, thus enabling timely response when the energy storage device 100 tipps over, thereby avoiding short circuits and other situations.

[0094] In some embodiments, the first indication signal and the second indication signal can be indicator lights of different colors, such as a green light for the first indication signal and a red light for the second indication signal; or they can be the same color but with different states, such as a constantly lit indicator light for the first indication signal and an off or flashing indicator light for the second indication signal. It should be noted that the first and second indication signals are mainly used to distinguish whether the energy storage device 100 has tipped over, and are not limited thereto.

[0095] In yet another embodiment, such as Figure 3 As shown, the indicator module 24 includes resistors R6 and R7 and a light-emitting diode LED1;

[0096] The resistor R6 is connected to the first power supply and the anode of the light-emitting diode LED1, and the cathode of the light-emitting diode LED1 is connected to the connection terminal of the relay K1.

[0097] When the relay K1 is energized, the first power source, the LED1, and the connection terminal of the relay K1 form a circuit, causing the LED1 to light up, thus indicating that the energy storage device 100 has tipped over. When the relay K1 is de-energized, the LED1 goes out, thus indicating that the energy storage device 100 is placed horizontally.

[0098] This utility model embodiment provides a tilt detection circuit for an energy storage device. The tilt detection circuit includes a detection module, a drive module, and a control module. The detection module is connected to the drive module, the drive module is connected to the control module, and both the detection module and the drive module are connected to a first power supply. The control module is also connected to a controller. The detection module receives a first voltage output from the first power supply and detects the tilt angle of the energy storage device in real time. When the tilt angle is less than a preset angle, the first voltage is released, thereby preventing the controller from shutting down the charging and discharging function of the energy storage device when it is placed horizontally. When the tilt angle is greater than the preset angle, the detection module delays the first voltage input to the drive module by a preset time, so that the drive module outputs a drive signal to the control module when the first voltage is greater than a voltage threshold, thereby preventing false triggering caused by instantaneous tilting. When the control module receives the drive signal, it outputs an abnormal signal to the controller based on the drive signal, so that the controller cuts off the charging and discharging function of the energy storage device upon receiving the abnormal signal, thereby preventing short circuits caused by tilting and improving the safety of the energy storage device.

[0099] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; under the concept of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this utility model as described above, which are not provided in detail for the sake of brevity; although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A tilt detection circuit for an energy storage device, characterized in that, The tilt detection circuit of the energy storage device includes a detection module, a drive module, and a control module; The detection module is connected to the drive module, the drive module is connected to the control module, the detection module and the drive module are also connected to the first power supply, and the control module is also connected to the controller. The detection module is used to receive the first voltage output by the first power source and to detect the tilt angle of the energy storage device in real time, so as to release the first voltage when the tilt angle is less than a preset angle; and When the tilt angle is greater than a preset angle, the first voltage is input to the drive module after a preset time delay; The driving module is used to receive a first voltage after a preset delay time, and output a driving signal to the control module when the first voltage is greater than a voltage threshold. The control module is used to receive the drive signal and start working based on the drive signal, thereby outputting an abnormal signal to the controller.

2. The energy storage device tilt detection circuit according to claim 1, characterized in that, The detection module includes a detection unit and a delay unit; The detection unit is connected to the delay unit, and the delay unit is also connected to the drive module. Both the detection unit and the delay unit are also used to connect to the first power supply. The detection unit is used to detect the tilt angle of the energy storage device in real time, and starts working when the tilt angle is less than a preset angle, so as to release the first voltage of the first power supply. as well as The operation stops when the tilt angle is greater than a preset angle, so that the first voltage is input to the delay unit; The delay unit is used to delay the first voltage for a preset time before inputting it to the drive module when the first voltage is received.

3. The energy storage device tilt detection circuit according to claim 2, characterized in that, The detection unit includes a resistor R4 and a normally closed tilt sensor; The normally closed tilt sensor is connected to the delay unit via the resistor R4, which is also used to connect to the first power supply.

4. The energy storage device tilt detection circuit according to claim 3, characterized in that, The delay unit includes a capacitor C1 and a resistor R5; The first end of capacitor C1 is connected to resistor R4 and the driving module, the first end of resistor R5 is connected to resistor R4 and the detection unit, and the second end of capacitor C1 and the second end of resistor R5 are used for grounding.

5. The energy storage device tilt detection circuit according to claim 1, characterized in that, The drive module includes a switching transistor Q1, a Zener diode D2A, a resistor R2, and a resistor R3; The control terminal of the switching transistor Q1 is connected to the detection module. The first terminal of the switching transistor Q1 is connected to the control module through the resistor R3. The resistor R3 is also connected to the first power supply through the resistor R2. The second terminal of the switching transistor Q1 is connected to the cathode of the Zener diode D2A. The anode of the Zener diode D2A is used for grounding.

6. The energy storage device tilt detection circuit according to any one of claims 1-5, characterized in that, The control module includes a switching unit, a relay K1, and a control unit; The switching unit is connected to the driving module. The switching unit is also connected to the first power supply and the coil terminal of the relay K1. The connection terminal of the relay K1 is connected to the first power supply and the control unit. The control unit is also connected to the controller. The switching unit is used to turn on based on the drive signal when it receives the drive signal, so as to input the first voltage to the coil terminal of the relay K1, thereby controlling the relay K1 to be energized; as well as When no drive signal is received, the relay K1 is turned off to control the relay K1 to disconnect. The control unit is used to output an abnormal signal to the controller when the relay K1 is activated; as well as The output of the abnormal signal stops when the relay K1 is disconnected.

7. The energy storage device tilt detection circuit according to claim 6, characterized in that, The control unit includes a switch Q3, resistors R8, R9, and R10; The control terminal of the switch Q3 is connected to the connection terminal of the relay K1 through the resistor R9. The first terminal of the switch Q3 is connected to the controller through the resistor R10. The resistor R10 is also connected to the resistor R8. The resistor R8 is connected to the second power supply. The second terminal of the switch Q3 is used for grounding.

8. The energy storage device tilt detection circuit according to claim 6, characterized in that, The tilt detection circuit for the energy storage device also includes an indicator module; The indicator module is connected to the connection terminal of the relay K1, and the indicator module is also used to connect to the first power supply; The indicator module is used to output a first indicator signal when the relay K1 is closed; as well as When the relay K1 is disconnected, a second indication signal is output.

9. The energy storage device tilt detection circuit according to claim 8, characterized in that, The indicator module includes resistor R6, resistor R7, and light-emitting diode LED1; The resistor R6 is connected to the first power supply and the anode of the light-emitting diode LED1, and the cathode of the light-emitting diode LED1 is connected to the connection terminal of the relay K1.

10. An energy storage device, characterized in that, The energy storage device includes: Controller; and The energy storage device tilt detection circuit as described in any one of claims 1-9.

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