Bluetooth lock control circuit, Bluetooth lock module and energy storage device

Abstract

The utility model provides a Bluetooth lock control circuit, a Bluetooth lock module and an energy storage device. In the Bluetooth lock control circuit, a Bluetooth unit is electrically connected with a first electromagnetic lock interface, a first battery output control unit and a first electromagnetic lock control unit and is powered by a power supply unit; the output end of the first battery output control unit is connected in series with the power supply end of a first capacity expansion battery of the energy storage device and then connected in parallel to a busbar of the energy storage device, and the switch end of the first battery output control unit is electrically connected with the main switch unit; the voltage input end of the power supply unit is connected to a busbar in parallel; when the main switch unit executes a closing operation, the switch end of the first battery output control unit maintains the voltage, so that the first battery output control unit controls the opening and closing of the output end of the first battery output control unit according to the voltage of the state end of the first electromagnetic lock interface so as to control whether the power supply end of the first capacity expansion battery is connected to the busbar in parallel or not; therefore, the technical scheme of the Bluetooth lock for the energy storage device, which can supplement power supply by expanding the battery, is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, and in particular to a Bluetooth lock control circuit, a Bluetooth lock module and an energy storage device. Background Art

[0002] Currently, energy storage technology is being used more and more widely, especially in the field of household energy storage, where excess electrical energy can be stored in energy storage batteries for preservation. In an existing household energy storage device, referring to the published patent CN221176509U, a conventional mechanical lock or fingerprint lock is generally provided on the expansion compartment door, and such locks can generally only be used by the user directly manually, and cannot be remotely opened. In some conventional operations, in order to achieve remote unlocking, a Bluetooth lock device can be installed, but the working power supply of the Bluetooth lock device is generally an external power supply, and it is easy to disconnect the external power supply to disconnect the power supply and unlock it, which has low security. If the main battery of the household energy storage device is used as the working power supply of the Bluetooth lock device, the main battery will also charge the expansion battery, resulting in a decrease in power and affecting the normal operation of the lock.

[0003] Therefore, it is necessary to provide a Bluetooth lock technology solution for household energy storage devices that can realize remote door opening, has high security, and has relatively sufficient working power supply. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a Bluetooth lock control circuit, a Bluetooth lock module and an energy storage device.

[0005] The utility model provides a Bluetooth lock control circuit for an energy storage device, comprising a Bluetooth unit, a first electromagnetic lock interface, a first electromagnetic lock control unit, a first battery output control unit, a power supply unit, and a main switch unit;

[0006] The first data terminal of the Bluetooth unit is electrically connected to the status terminal of the first electromagnetic lock interface and the control voltage terminal of the first battery output control unit, the first control terminal thereof is electrically connected to the control terminal of the first electromagnetic lock control unit, and the working voltage terminal thereof is electrically connected to the first voltage output terminal of the power supply unit;

[0007] The high voltage end of the first electromagnetic lock interface is electrically connected to the input end of the first electromagnetic lock control unit and connected to the second voltage output end of the power supply unit, the ground end thereof is electrically connected to the ground, and the low voltage end thereof is electrically connected to the first voltage output end;

[0008] The output terminal of the first electromagnetic lock control unit is electrically connected to the ground;

[0009] The output end of the first battery output control unit is used to be connected in series with the power supply end of the first expansion battery of the energy storage device and then connected in parallel to the bus of the energy storage device, its working voltage end is electrically connected to the second voltage output end, and its switch end is electrically connected to the control end of the main switch unit;

[0010] The voltage input terminal of the power supply unit is used to be connected in parallel to the busbar;

[0011] Among them, when the main switch unit performs a closing operation, the switch end of the first battery output control unit maintains its voltage, so that the first battery output control unit controls the opening and closing of its output end according to the voltage of the status end of the first electromagnetic lock interface to control whether the power supply end of the first expansion battery is connected in parallel to the bus.

[0012] In a possible implementation, the device further includes a second electromagnetic lock interface, a second electromagnetic lock control unit, and a second battery output control unit;

[0013] The second data terminal of the Bluetooth unit is electrically connected to the status terminal of the second electromagnetic lock interface and the control voltage terminal of the second battery output control unit, and its second control terminal is electrically connected to the control terminal of the second electromagnetic lock control unit;

[0014] The high voltage end of the second electromagnetic lock interface is electrically connected to the input end of the second electromagnetic lock control unit and connected to the second voltage output end of the power supply unit, the ground end thereof is electrically connected to the ground, and the low voltage end thereof is electrically connected to the first voltage output end;

[0015] The output terminal of the second electromagnetic lock control unit is electrically connected to the ground;

[0016] The output end of the second battery output control unit is used to be connected in series with the power supply end of the second expansion battery of the energy storage device and then in parallel to the bus, its working voltage end is electrically connected to the second voltage output end, and its switch end is electrically connected to the control end of the main switch unit.

[0017] In a possible implementation, the main switch unit includes a first NPN transistor, a first resistor, a second resistor, a first diode, and a main switch;

[0018] The collector of the first NPN transistor is electrically connected to the first end of the first resistor, the base of the first NPN transistor is electrically connected to the anode of the first diode and the first end of the second resistor, and the emitter of the first NPN transistor is electrically connected to the first end of the main switch and is grounded;

[0019] The second end of the first resistor serves as the control end of the main switch unit;

[0020] The second end of the second resistor is electrically connected to the first voltage output end;

[0021] The cathode of the first diode is electrically connected to the second end of the main switch.

[0022] In a possible implementation, the first electromagnetic lock control unit includes a first NMOS transistor, a third resistor, a fourth resistor, a fifth resistor, and a first light-emitting diode;

[0023] The gate of the first NMOS transistor is electrically connected to the first end of the third resistor and the first end of the fourth resistor respectively, the drain of the first NMOS transistor is electrically connected to the cathode of the first light-emitting diode, and the source of the first NMOS transistor is electrically connected to the second end of the fourth resistor and is grounded;

[0024] The second end of the third resistor serves as a control end of the first electromagnetic lock control unit;

[0025] A first end of the fifth resistor is electrically connected to the anode of the first light-emitting diode, and a second end of the fifth resistor serves as an input end of the first electromagnetic lock control unit.

[0026] In a possible implementation, the second electromagnetic lock control unit includes a second NMOS transistor, a sixth resistor, a seventh resistor, an eighth resistor, and a second light-emitting diode;

[0027] The gate of the second NMOS transistor is electrically connected to the first end of the sixth resistor and the first end of the seventh resistor respectively, the drain of the second NMOS transistor is electrically connected to the cathode of the second light-emitting diode, and the source of the second NMOS transistor is electrically connected to the second end of the seventh resistor and is grounded;

[0028] The second end of the sixth resistor serves as a control end of the second electromagnetic lock control unit;

[0029] A first end of the eighth resistor is electrically connected to the anode of the second light-emitting diode, and a second end of the eighth resistor serves as an input end of the second electromagnetic lock control unit.

[0030] In a possible implementation, the first battery output control unit includes a second NPN transistor, a ninth resistor, a tenth resistor, a first diode, a second diode, a third light-emitting diode, and a first relay;

[0031] The collector of the second NPN transistor is electrically connected to the anode of the first diode, the cathode of the third light-emitting diode, and the first control terminal of the first relay, the base of the second NPN transistor is electrically connected to the first end of the ninth resistor and the anode of the second diode, and the emitter of the second NPN transistor is electrically connected to ground.

[0032] The second end of the ninth resistor serves as a control voltage end of the first battery output control unit;

[0033] The first end of the tenth resistor is electrically connected to the anode of the third light-emitting diode, and the second end of the tenth resistor is electrically connected to the cathode of the first diode and the second control end of the first relay, respectively, and serves as the working voltage end of the first battery output control unit;

[0034] The cathode of the second diode serves as a switch terminal of the first battery output control unit;

[0035] The output end of the first relay serves as the output end of the first battery output control unit.

[0036] In a possible implementation, the second battery output control unit includes a third NPN transistor, an eleventh resistor, a twelfth resistor, a third diode, a fourth diode, a fourth light-emitting diode, and a second relay;

[0037] The collector of the third NPN transistor is electrically connected to the anode of the third diode, the cathode of the fourth light-emitting diode, and the first control terminal of the second relay, the base of the third NPN transistor is electrically connected to the first end of the eleventh resistor and the anode of the fourth diode, and the emitter of the third NPN transistor is electrically connected to ground.

[0038] The second end of the eleventh resistor serves as a control voltage end of the second battery output control unit;

[0039] The first end of the twelfth resistor is electrically connected to the anode of the fourth light-emitting diode, and the second end of the twelfth resistor is electrically connected to the cathode of the third diode and the second control end of the second relay, respectively, and serves as the working voltage end of the first battery output control unit;

[0040] The cathode of the fourth diode serves as a switch terminal of the first battery output control unit;

[0041] The output end of the second relay serves as the output end of the first battery output control unit.

[0042] The utility model also provides a Bluetooth lock module, comprising a first electromagnetic lock and the Bluetooth lock control circuit as described above;

[0043] The first electromagnetic lock is electrically connected to the first electromagnetic lock interface in the Bluetooth lock control circuit.

[0044] The present invention also provides another Bluetooth lock module, comprising a first electromagnetic lock, a second electromagnetic lock, and the Bluetooth lock control circuit as described above;

[0045] The first electromagnetic lock is electrically connected to the first electromagnetic lock interface in the Bluetooth lock control circuit;

[0046] The second electromagnetic lock is electrically connected to the second electromagnetic lock interface in the Bluetooth lock control circuit.

[0047] The utility model also provides an energy storage device, comprising an energy storage device body and the above-mentioned Bluetooth lock module;

[0048] The energy storage device body is electrically connected to the Bluetooth lock module.

[0049] The technical solution provided by the utility model has at least the following beneficial effects:

[0050] By setting up a Bluetooth unit, a first electromagnetic lock interface, and a first electromagnetic lock control unit, an electromagnetic lock can be installed for a household energy storage device to realize remote door opening operation; at the same time, by setting up a first battery output control unit, the corresponding expansion battery can be connected to the bus, so that the main battery and the expansion battery can jointly power the power supply unit, which not only realizes the internalization of the working power supply and improves safety, but also can provide more sufficient power for the power supply unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 A first circuit schematic diagram of a Bluetooth lock control circuit provided by an embodiment of the present utility model;

[0052] Figure 2 A second circuit schematic diagram of a Bluetooth lock control circuit provided by an embodiment of the present utility model;

[0053] Figure 3 A circuit diagram of a main switch unit provided in an embodiment of the present utility model;

[0054] Figure 4 A circuit schematic diagram of a first electromagnetic lock control unit provided in an embodiment of the present utility model;

[0055] Figure 5 A circuit schematic diagram of a second electromagnetic lock control unit provided in an embodiment of the present utility model;

[0056] Figure 6 A circuit schematic diagram of a first battery output control unit provided by an embodiment of the present utility model;

[0057] Figure 7 This is a circuit schematic diagram of a second battery output control unit provided in an embodiment of the present utility model. DETAILED DESCRIPTION

[0058] In order to deepen the understanding of the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. The embodiments are only used to explain the present invention and do not limit the scope of protection of the present invention.

[0059] Please refer to Figures 1 to 7 , the utility model provides a Bluetooth lock control circuit for an energy storage device, including a Bluetooth unit, a first electromagnetic lock interface P1, a first electromagnetic lock control unit, a first battery output control unit, a power supply unit, and a main switch unit;

[0060] The first data terminal of the Bluetooth unit is electrically connected to the state terminal STATE1 of the first electromagnetic lock interface P1 and the control voltage terminal of the first battery output control unit, the first control terminal GPIO1 of the Bluetooth unit is electrically connected to the control terminal of the first electromagnetic lock control unit, and the working voltage terminal of the Bluetooth unit is electrically connected to the first voltage output terminal VCC1 of the power supply unit;

[0061] The high voltage end of the first electromagnetic lock interface P1 is electrically connected to the input end of the first electromagnetic lock control unit and connected to the second voltage output end VCC2 of the power supply unit, the ground end thereof is electrically connected to the ground, and the low voltage end thereof is electrically connected to the first voltage output end VCC1;

[0062] The output terminal of the first electromagnetic lock control unit is electrically connected to the ground;

[0063] The output end of the first battery output control unit is used to be connected in series with the power supply end of the first expansion battery of the energy storage device and then connected in parallel to the bus of the energy storage device, its working voltage end is electrically connected to the second voltage output end VCC2, and its switch end is electrically connected to the control end CONTROL of the main switch unit;

[0064] The voltage input terminal VC of the power supply unit is used to be connected in parallel to the busbar;

[0065] Among them, when the main switch unit performs a closing operation, the switch end of the first battery output control unit maintains its voltage, so that the first battery output control unit controls the opening and closing of its output end according to the voltage of the state end STATE1 of the first electromagnetic lock interface P1 to control whether the power supply end of the first expansion battery is connected in parallel to the bus.

[0066] In this embodiment, the energy storage device is composed of a fixedly connected main battery and a removable expansion battery. The first expansion battery is a conventional expansion battery. The main battery is connected in parallel to the bus of the energy storage device to be used as a power source. The Bluetooth unit is implemented based on a conventional Bluetooth chip using a conventional design. The first electromagnetic lock interface P1 is a conventional electromagnetic lock interface for connecting an electromagnetic lock. The first electromagnetic lock control unit can be implemented based on a MOS tube. The first battery output control unit can be implemented based on a combination of a transistor and a relay, and the control end of the relay is controlled by a transistor. The power supply unit can be implemented using a conventional power management chip to convert a high-level voltage into a low-level voltage. The main switch unit can be implemented based on a transistor. The power supply end of the first expansion battery can be understood as an interface fixedly provided in the expansion compartment for connecting the first expansion battery to the bus, and will not be removed at the same time as the first expansion battery is removed.

[0067] In a specific embodiment, the main battery is connected in parallel to the bus to provide it with a 48V voltage. The bus provides a 48V voltage to the power supply unit. In the power supply unit, a first step-down circuit is constructed by a wide voltage range step-down DC-DC power management chip (such as PW2153) to step down the 48V voltage to 24V, a charging circuit is constructed by a charging management chip (such as SLM6900) to convert the 24V voltage to 12V, and a second step-down circuit is constructed by a high-efficiency synchronous step-down DC-DC power supply chip (such as TPS54331DR) to convert the 12V voltage to 3.3V. The charging circuit can use the converted 12V voltage to charge the main battery and the expansion battery (such as the first expansion battery, the second expansion battery, etc.). The first voltage output terminal VCC1 corresponds to the output terminal of the second step-down circuit, which outputs the converted 3.3V voltage. The second voltage output terminal VCC2 corresponds to the output terminal of the charging circuit, which outputs the converted 12V voltage. Assume that a first expansion battery is located in the first expansion compartment of an energy storage device, and a first electromagnetic lock is applied to the expansion compartment door of the first expansion compartment. When the first electromagnetic lock is locked, the state terminal STATE1 of the first electromagnetic lock interface P1 outputs a high level. When the first electromagnetic lock is unlocked, the state terminal STATE1 of the first electromagnetic lock interface P1 outputs a low level. When the main switch unit is open, regardless of whether the first electromagnetic lock is locked, the first battery output control unit does not operate, and the first expansion battery cannot be connected in parallel to the bus. When the main switch unit is closed, if the first electromagnetic lock is locked, the control voltage terminal of the first battery output control unit receives a high level, the first battery output control unit operates, and the first expansion battery is connected in parallel to the bus. The bus voltage is provided by at least the main battery and the first expansion battery. When the main switch unit is closed, if the first electromagnetic lock is unlocked, the control voltage terminal of the first battery output control unit receives a low level, the first battery output control unit does not operate, and the first expansion battery cannot be connected in parallel to the bus. When the first electromagnetic lock needs to be unlocked, that is, switched from a locked state to an unlocked state, the Bluetooth unit first determines whether the first electromagnetic lock is in a locked state based on the voltage at the state terminal STATE1 of the first electromagnetic lock interface P1. When the first electromagnetic lock is in the locked state, the Bluetooth unit outputs a level control signal via the first control terminal GPIO1 to lower the voltage at the high-voltage terminal of the first electromagnetic lock interface P1, thereby achieving the unlocking operation and placing the first electromagnetic lock in the unlocked state. After the unlocking operation, after removing or inserting the first expanded battery and manually closing the door, the first electromagnetic lock re-enters the locked state.

[0068] In one possible implementation, Figure 2 , also includes a second electromagnetic lock interface P2, a second electromagnetic lock control unit, and a second battery output control unit;

[0069] The second data terminal of the Bluetooth unit is electrically connected to the state terminal STATE2 of the second electromagnetic lock interface P2 and the control voltage terminal of the second battery output control unit, and its second control terminal GPIO2 is electrically connected to the control terminal of the second electromagnetic lock control unit;

[0070] The high voltage end of the second electromagnetic lock interface P2 is electrically connected to the input end of the second electromagnetic lock control unit and connected to the second voltage output end VCC2 of the power supply unit, the ground end thereof is electrically connected to the ground, and the low voltage end thereof is electrically connected to the first voltage output end VCC1;

[0071] The output terminal of the second electromagnetic lock control unit is electrically connected to the ground;

[0072] The output end of the second battery output control unit is used to be connected in series with the power supply end of the second expansion battery of the energy storage device and then in parallel to the bus, its working voltage end is electrically connected to the second voltage output end VCC2, and its switch end is electrically connected to the control end CONTROL of the main switch unit.

[0073] In this embodiment, the second expansion battery is a conventional expansion battery. The second electromagnetic lock interface P2 is a conventional electromagnetic lock interface for connecting an electromagnetic lock. The second electromagnetic lock control unit can be implemented based on a MOS tube. The second battery output control unit can be implemented based on a combination of a transistor and a relay, and the control end of the relay is controlled by the transistor. The power supply end of the second expansion battery can be understood as an interface fixedly provided in the expansion compartment for connecting the second expansion battery to the bus, and will not be removed at the same time as the second expansion battery is removed.

[0074] In a specific embodiment, it is assumed that the second expansion battery is located in the second expansion compartment of the energy storage device, and the second electromagnetic lock acts on the expansion compartment door of the second expansion compartment. The first expansion battery and the second expansion battery are independent of each other. When the second electromagnetic lock is in the locked state, the state terminal STATE2 of the second electromagnetic lock interface P2 outputs a high level. When the second electromagnetic lock is in the unlocked state, the state terminal STATE2 of the second electromagnetic lock interface P2 outputs a low level. When the main switch unit is in the open state, regardless of whether the second electromagnetic lock is in the locked state, the second battery output control unit does not work, and the second expansion battery cannot be connected in parallel to the bus. When the main switch unit is in the closed state, if the second electromagnetic lock is in the locked state, the control voltage terminal of the second battery output control unit is affected by the high level, the second battery output control unit works, and the second expansion battery is connected in parallel to the bus. The voltage of the bus is provided by at least the main battery and the second expansion battery. When the main switch unit is in the closed state, if the second electromagnetic lock is in the unlocked state, the control voltage terminal of the second battery output control unit is affected by a low level, the second battery output control unit does not work, and the second expanded battery cannot be connected in parallel to the bus. When the second electromagnetic lock needs to be unlocked, that is, switched from the locked state to the unlocked state, the Bluetooth unit first determines whether the second electromagnetic lock is in the locked state based on the voltage of the state terminal STATE2 of the second electromagnetic lock interface P2. When the second electromagnetic lock is in the locked state, the Bluetooth unit outputs a level control signal through the second control terminal GPIO2 to lower the voltage of the high voltage terminal of the second electromagnetic lock interface P2, thereby achieving the unlocking operation and the second electromagnetic lock is in the unlocked state. After the unlocking operation, after removing or inserting the second expanded battery, manually close the door and the second electromagnetic lock will re-enter the locked state.

[0075] In one possible implementation, Figure 3 , the main switch unit includes a first NPN transistor Q1, a first resistor R1, a second resistor R2, a first diode D13, and a main switch S1;

[0076] The collector of the first NPN transistor Q1 is electrically connected to the first end of the first resistor R1, the base of the first NPN transistor Q1 is electrically connected to the anode of the first diode D1 and the first end of the second resistor R2, and the emitter of the first NPN transistor Q1 is electrically connected to the first end of the main switch S1 and is grounded;

[0077] The second end of the first resistor R1 serves as the control end CONTROL of the main switch unit;

[0078] The second end of the second resistor R2 is electrically connected to the first voltage output end VCC1;

[0079] The cathode of the first diode D1 is electrically connected to the second end of the main switch S1 .

[0080] In this embodiment, the first NPN transistor Q1 is a conventional NPN transistor, the first resistor R1 and the second resistor R2 are conventional resistors, the first diode D13 is a conventional diode, and the main switch S1 is a conventional switch.

[0081] In a specific embodiment, assuming the main switch S1 is open, the 3.3V voltage provided by the first voltage output terminal VCC1 is applied to the base of the first NPN transistor Q1, turning on the first NPN transistor Q1. This causes the control terminal CONTROL of the main switch unit to be grounded, pulling down the voltages of the control voltage terminals of the first and second battery output control units. Both the first and second battery output control units are inoperative, and neither the first or second expanded-capacity battery can be connected to the bus. Assuming the main switch S1 is closed, the 3.3V voltage provided by the first voltage output terminal VCC1 is applied to ground via the first diode D1, but not to the base of the first NPN transistor Q1. The first NPN transistor Q1 is turned off, and the control terminal CONTROL of the main switch unit is effectively disconnected. At this point, the voltage received from the state terminal STATE1 of the first electromagnetic lock interface P1 by the control voltage terminal of the first battery output control unit is applied to the first battery output control unit. When the voltage at the state terminal STATE1 of the first electromagnetic lock interface P1 is high, the first battery output control unit is operational, and the first expanded-capacity battery is connected to the bus. The voltage of the state terminal STATE2 of the second electromagnetic lock interface P2 received by the control voltage terminal of the second battery output control unit acts on the second battery output control unit. When the voltage of the state terminal STATE2 of the second electromagnetic lock interface P2 is high, the second battery output control unit works and the second expansion battery is incorporated into the bus.

[0082] In one possible implementation, Figure 4 The first electromagnetic lock control unit includes a first NMOS tube M1, a third resistor R3, a fourth resistor R4, a fifth resistor R5, and a first light-emitting diode LED1;

[0083] The gate of the first NMOS transistor M1 is electrically connected to the first end of the third resistor R3 and the first end of the fourth resistor R4, respectively; the drain of the first NMOS transistor M1 is electrically connected to the cathode of the first light-emitting diode LED1; and the source of the first NMOS transistor M1 is electrically connected to the second end of the fourth resistor R4 and is grounded;

[0084] The second end of the third resistor R3 serves as a control end of the first electromagnetic lock control unit;

[0085] A first end of the fifth resistor R5 is electrically connected to the anode of the first light emitting diode LED1 , and a second end thereof serves as an input end of the first electromagnetic lock control unit.

[0086] In this embodiment, the first NMOS transistor M1 is a conventional N-type MOS transistor, the third resistor R3, the fourth resistor R4, and the fifth resistor R5 are conventional resistors, and the first light-emitting diode LED1 is a conventional light-emitting diode (e.g., a red light-emitting diode). In a specific embodiment, assume that the first electromagnetic lock interface P1 is connected to the first electromagnetic lock and the first electromagnetic lock is in the locked state, i.e., the voltage at the state terminal STATE1 of the first electromagnetic lock interface P1 is high. At this time, if an unlocking operation is required on the first electromagnetic lock, the Bluetooth unit outputs a high level via the first control terminal GPIO1. The gate of the first NMOS transistor M1 is affected by the high level, turning on the first NMOS transistor M1. The 12V voltage provided by the second voltage output terminal VCC2 is connected to ground via the first light-emitting diode LED1 through the first NMOS transistor M1, pulling down the voltage at the high voltage terminal of the first electromagnetic lock interface P1, unlocking the first electromagnetic lock, and the voltage at the state terminal STATE1 of the first electromagnetic lock interface P1 becomes low. The first light-emitting diode LED1 serves as an unlocking prompt.

[0087] In one possible implementation, Figure 5 The second electromagnetic lock control unit includes a second NMOS tube M2, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, and a second light-emitting diode LED2;

[0088] The gate of the second NMOS transistor M2 is electrically connected to the first end of the sixth resistor R6 and the first end of the seventh resistor R7, respectively; the drain of the second NMOS transistor M2 is electrically connected to the cathode of the second light-emitting diode LED2; and the source of the second NMOS transistor M2 is electrically connected to the second end of the seventh resistor R7 and is grounded;

[0089] The second end of the sixth resistor R6 serves as a control end of the second electromagnetic lock control unit;

[0090] A first end of the eighth resistor R8 is electrically connected to the anode of the second light emitting diode LED2 , and a second end of the eighth resistor R8 serves as an input end of the second electromagnetic lock control unit.

[0091] In this embodiment, the second NMOS transistor M2 is a conventional N-type MOS transistor, the sixth resistor R6, the seventh resistor R7, and the eighth resistor R8 are conventional resistors, and the second light-emitting diode LED2 is a conventional light-emitting diode (e.g., a red light-emitting diode). In a specific embodiment, assuming that the second electromagnetic lock interface P2 is connected to the second electromagnetic lock, the second electromagnetic lock is in the locked state, i.e., the voltage at the state terminal STATE2 of the second electromagnetic lock interface P2 is high. At this time, if an unlocking operation is required on the second electromagnetic lock, the Bluetooth unit outputs a high level via the second control terminal GPIO2. The gate of the second NMOS transistor M2 is affected by the high level, turning on the second NMOS transistor M2. The 12V voltage provided by the second voltage output terminal VCC2 is connected to ground via the second light-emitting diode LED2 and the second NMOS transistor M2. The voltage at the high voltage terminal of the second electromagnetic lock interface P2 is pulled down, the second electromagnetic lock is unlocked, and the voltage at the state terminal STATE2 of the second electromagnetic lock interface P2 becomes low. The second light-emitting diode LED2 serves as an unlocking prompt.

[0092] In one possible implementation, Figure 6 The first battery output control unit includes a second NPN transistor Q2, a ninth resistor R9, a tenth resistor R10, a first diode D1, a second diode D2, a third light-emitting diode LED3, and a first relay J1;

[0093] The collector of the second NPN transistor Q2 is electrically connected to the anode of the first diode D1, the cathode of the third light-emitting diode LED3, and the first control terminal of the first relay J1, respectively; the base of the second NPN transistor Q2 is electrically connected to the first end of the ninth resistor R9 and the anode of the second diode D2, respectively; and the emitter of the second NPN transistor Q2 is electrically connected to ground;

[0094] The second end of the ninth resistor R9 serves as a control voltage end of the first battery output control unit;

[0095] The first end of the tenth resistor R10 is electrically connected to the anode of the third light-emitting diode LED3, and the second end thereof is electrically connected to the cathode of the first diode D1 and the second control end of the first relay J1, respectively, and serves as the working voltage end of the first battery output control unit;

[0096] The cathode of the second diode D2 serves as a switch terminal of the first battery output control unit;

[0097] The output end of the first relay J1 serves as the output end of the first battery output control unit.

[0098] In this embodiment, the second NPN transistor Q2 is a conventional NPN transistor, the ninth resistor R9 and the tenth resistor R10 are conventional resistors, the first diode D1 and the second diode D2 are conventional diodes, the third light-emitting diode LED3 is a conventional light-emitting diode (for example, a red light-emitting diode), and the first relay J1 is a conventional relay. In a specific embodiment, assume there is a relay output interface P0, whose port 1 is externally connected to the positive pole of the bus and internally connected to the first pin of the output terminal of the first relay J1, and whose port 2 is externally connected to the positive pole of the power supply terminal of the first expansion battery, and the negative pole of the power supply terminal of the first expansion battery is connected to the negative pole of the bus. When the output terminal of the first relay J1 is connected, when the first expansion battery is placed in the expansion compartment and connected to the power supply terminal of the first expansion battery, the first expansion battery is connected in parallel to the bus to provide a supplementary 48V voltage. When the output end of the first relay J1 is disconnected, when the first capacity expansion battery is placed in the capacity expansion compartment and connected to the power supply end of the first capacity expansion battery, the first capacity expansion battery cannot be connected in parallel to the busbar.

[0099] In a specific embodiment, it is assumed that the first expansion battery is placed in the expansion compartment. If the main switch unit is in the open state, the cathode of the second diode D2 is equivalent to a ground connection, the second NPN transistor Q2 is always in the off state, the first relay J1 does not work, and the first expansion battery cannot be connected in parallel to the bus. If the main switch unit is in the closed state, the cathode of the second diode D2 is equivalent to an open circuit, and the working state of the second NPN transistor Q2 is determined by the voltage of the state terminal STATE1 of the first electromagnetic lock interface P1. When the main switch unit is in the closed state: if the first electromagnetic lock is in the unlocked state, the second NPN transistor Q2 is in the off state, the first relay J1 does not work, and the first expansion battery cannot be connected in parallel to the bus; if the first electromagnetic lock is in the locked state, the second NPN transistor Q2 is in the on state, the first relay J1 works, and the first expansion battery is connected in parallel to the bus.

[0100] In one possible implementation, Figure 7 The second battery output control unit includes a third NPN transistor Q3, an eleventh resistor R11, a twelfth resistor R12, a third diode D3, a fourth diode D4, a fourth light-emitting diode LED4, and a second relay J2;

[0101] The collector of the third NPN transistor Q3 is electrically connected to the anode of the third diode D3, the cathode of the fourth light-emitting diode LED4, and the first control terminal of the second relay J2, respectively; the base of the third NPN transistor Q3 is electrically connected to the first end of the eleventh resistor R11 and the anode of the fourth diode D4, respectively; and the emitter of the third NPN transistor Q3 is electrically connected to ground;

[0102] The second end of the eleventh resistor R11 serves as a control voltage end of the second battery output control unit;

[0103] The first end of the twelfth resistor R12 is electrically connected to the anode of the fourth light-emitting diode LED4, and the second end thereof is electrically connected to the cathode of the third diode D3 and the second control end of the second relay J2, respectively, and serves as the working voltage end of the first battery output control unit;

[0104] The cathode of the fourth diode D4 serves as a switch terminal of the first battery output control unit;

[0105] The output end of the second relay J2 serves as the output end of the first battery output control unit.

[0106] In this embodiment, the third NPN transistor Q3 is a conventional NPN transistor, the eleventh resistor R11 and the twelfth resistor R12 are conventional resistors, the third diode D3 and the fourth diode D4 are conventional diodes, the fourth light-emitting diode LED4 is a conventional light-emitting diode (e.g., a red light-emitting diode), and the second relay J2 is a conventional relay. In a specific embodiment, a relay output interface P0 is provided, wherein port 3 is externally connected to the positive pole of the bus and internally connected to the first pin of the output terminal of the second relay J2. Port 4 is externally connected to the positive pole of the power supply terminal of the second expansion battery, and the negative pole of the power supply terminal of the second expansion battery is connected to the negative pole of the bus. When the output terminal of the second relay J2 is connected, and the second expansion battery is placed in the expansion compartment and connected to the power supply terminal of the second expansion battery, the second expansion battery is connected in parallel to the bus to provide a supplementary 48V voltage. When the output end of the second relay J2 is disconnected, when the second expanded capacity battery is placed in the expansion compartment and connected to the power supply end of the second expanded capacity battery, the second expanded capacity battery cannot be connected in parallel to the bus.

[0107] In a specific embodiment, it is assumed that the second expansion battery is placed in the expansion compartment. If the main switch unit is in the open state, the cathode of the fourth diode D4 is equivalent to a ground connection, the third NPN transistor Q3 is always in the off state, the second relay J2 does not work, and the second expansion battery cannot be connected in parallel to the bus. If the main switch unit is in the closed state, the cathode of the fourth diode D4 is equivalent to an open circuit, and the working state of the third NPN transistor Q3 is determined by the voltage of the state terminal STATE2 of the second electromagnetic lock interface P2. When the main switch unit is in the closed state: if the second electromagnetic lock is in the unlocked state, the third NPN transistor Q3 is in the off state, the second relay J2 does not work, and the second expansion battery cannot be connected in parallel to the bus; if the second electromagnetic lock is in the locked state, the third NPN transistor Q3 is in the on state, the second relay J2 works, and the second expansion battery is connected in parallel to the bus.

[0108] The utility model also provides a Bluetooth lock module, comprising a first electromagnetic lock and the Bluetooth lock control circuit as described above;

[0109] The first electromagnetic lock is electrically connected to the first electromagnetic lock interface P1 in the Bluetooth lock control circuit.

[0110] The present invention also provides another Bluetooth lock module, comprising a first electromagnetic lock, a second electromagnetic lock, and the Bluetooth lock control circuit as described above;

[0111] The first electromagnetic lock is electrically connected to the first electromagnetic lock interface P1 in the Bluetooth lock control circuit;

[0112] The second electromagnetic lock is electrically connected to the second electromagnetic lock interface P2 in the Bluetooth lock control circuit.

[0113] The utility model also provides an energy storage device, comprising an energy storage device body and the above-mentioned Bluetooth lock module;

[0114] The energy storage device body is electrically connected to the Bluetooth lock module.

[0115] The above embodiments should not limit the present invention in any way, and any technical solutions obtained by equivalent replacement or equivalent conversion fall within the protection scope of the present invention.

Claims

1. A Bluetooth lock control circuit for an energy storage device, characterized in that: It includes a Bluetooth unit, a first electromagnetic lock interface, a first electromagnetic lock control unit, a first battery output control unit, a power supply unit, and a main switch unit; The first data terminal of the Bluetooth unit is electrically connected to the status terminal of the first electromagnetic lock interface and the control voltage terminal of the first battery output control unit, the first control terminal thereof is electrically connected to the control terminal of the first electromagnetic lock control unit, and the working voltage terminal thereof is electrically connected to the first voltage output terminal of the power supply unit; The high voltage end of the first electromagnetic lock interface is electrically connected to the input end of the first electromagnetic lock control unit and connected to the second voltage output end of the power supply unit, the ground end thereof is electrically connected to the ground, and the low voltage end thereof is electrically connected to the first voltage output end; The output terminal of the first electromagnetic lock control unit is electrically connected to the ground; The output end of the first battery output control unit is used to be connected in series with the power supply end of the first expansion battery of the energy storage device and then connected in parallel to the bus of the energy storage device, its working voltage end is electrically connected to the second voltage output end, and its switch end is electrically connected to the control end of the main switch unit; The voltage input terminal of the power supply unit is used to be connected in parallel to the busbar; Among them, when the main switch unit performs a closing operation, the switch end of the first battery output control unit maintains its voltage, so that the first battery output control unit controls the opening and closing of its output end according to the voltage of the status end of the first electromagnetic lock interface to control whether the power supply end of the first expansion battery is connected in parallel to the bus.

2. The Bluetooth lock control circuit according to claim 1, characterized in that: It also includes a second electromagnetic lock interface, a second electromagnetic lock control unit, and a second battery output control unit; The second data terminal of the Bluetooth unit is electrically connected to the status terminal of the second electromagnetic lock interface and the control voltage terminal of the second battery output control unit, and its second control terminal is electrically connected to the control terminal of the second electromagnetic lock control unit; The high voltage end of the second electromagnetic lock interface is electrically connected to the input end of the second electromagnetic lock control unit and connected to the second voltage output end of the power supply unit, the ground end thereof is electrically connected to the ground, and the low voltage end thereof is electrically connected to the first voltage output end; The output terminal of the second electromagnetic lock control unit is electrically connected to the ground; The output end of the second battery output control unit is used to be connected in series with the power supply end of the second expansion battery of the energy storage device and then in parallel to the bus, its working voltage end is electrically connected to the second voltage output end, and its switch end is electrically connected to the control end of the main switch unit.

3. The Bluetooth lock control circuit according to claim 2, characterized in that: The main switch unit includes a first NPN transistor, a first resistor, a second resistor, a first diode, and a main switch; The collector of the first NPN transistor is electrically connected to the first end of the first resistor, the base of the first NPN transistor is electrically connected to the anode of the first diode and the first end of the second resistor, and the emitter of the first NPN transistor is electrically connected to the first end of the main switch and is grounded; The second end of the first resistor serves as the control end of the main switch unit; The second end of the second resistor is electrically connected to the first voltage output end; The cathode of the first diode is electrically connected to the second end of the main switch.

4. The Bluetooth lock control circuit according to claim 2, characterized in that: The first electromagnetic lock control unit includes a first NMOS tube, a third resistor, a fourth resistor, a fifth resistor, and a first light emitting diode; The gate of the first NMOS transistor is electrically connected to the first end of the third resistor and the first end of the fourth resistor respectively, the drain of the first NMOS transistor is electrically connected to the cathode of the first light-emitting diode, and the source of the first NMOS transistor is electrically connected to the second end of the fourth resistor and is grounded; The second end of the third resistor serves as a control end of the first electromagnetic lock control unit; A first end of the fifth resistor is electrically connected to the anode of the first light-emitting diode, and a second end of the fifth resistor serves as an input end of the first electromagnetic lock control unit.

5. The Bluetooth lock control circuit according to claim 2, characterized in that: The second electromagnetic lock control unit includes a second NMOS tube, a sixth resistor, a seventh resistor, an eighth resistor, and a second light emitting diode; The gate of the second NMOS transistor is electrically connected to the first end of the sixth resistor and the first end of the seventh resistor respectively, the drain of the second NMOS transistor is electrically connected to the cathode of the second light-emitting diode, and the source of the second NMOS transistor is electrically connected to the second end of the seventh resistor and is grounded; The second end of the sixth resistor serves as a control end of the second electromagnetic lock control unit; A first end of the eighth resistor is electrically connected to the anode of the second light-emitting diode, and a second end of the eighth resistor serves as an input end of the second electromagnetic lock control unit.

6. The Bluetooth lock control circuit according to claim 2, characterized in that: The first battery output control unit includes a second NPN transistor, a ninth resistor, a tenth resistor, a first diode, a second diode, a third light-emitting diode, and a first relay; The collector of the second NPN transistor is electrically connected to the anode of the first diode, the cathode of the third light-emitting diode, and the first control terminal of the first relay, the base of the second NPN transistor is electrically connected to the first end of the ninth resistor and the anode of the second diode, and the emitter of the second NPN transistor is electrically connected to ground. The second end of the ninth resistor serves as a control voltage end of the first battery output control unit; The first end of the tenth resistor is electrically connected to the anode of the third light-emitting diode, and the second end of the tenth resistor is electrically connected to the cathode of the first diode and the second control end of the first relay, respectively, and serves as the working voltage end of the first battery output control unit; The cathode of the second diode serves as a switch terminal of the first battery output control unit; The output end of the first relay serves as the output end of the first battery output control unit.

7. The Bluetooth lock control circuit according to claim 2, characterized in that: The second battery output control unit includes a third NPN transistor, an eleventh resistor, a twelfth resistor, a third diode, a fourth diode, a fourth light-emitting diode, and a second relay; The collector of the third NPN transistor is electrically connected to the anode of the third diode, the cathode of the fourth light-emitting diode, and the first control terminal of the second relay, the base of the third NPN transistor is electrically connected to the first end of the eleventh resistor and the anode of the fourth diode, and the emitter of the third NPN transistor is electrically connected to ground. The second end of the eleventh resistor serves as a control voltage end of the second battery output control unit; The first end of the twelfth resistor is electrically connected to the anode of the fourth light-emitting diode, and the second end of the twelfth resistor is electrically connected to the cathode of the third diode and the second control end of the second relay, respectively, and serves as the working voltage end of the first battery output control unit; The cathode of the fourth diode serves as a switch terminal of the first battery output control unit; The output end of the second relay serves as the output end of the first battery output control unit.

8. A Bluetooth lock module, characterized in that: comprising a first electromagnetic lock and the Bluetooth lock control circuit as claimed in claim 1; The first electromagnetic lock is electrically connected to the first electromagnetic lock interface in the Bluetooth lock control circuit.

9. A Bluetooth lock module, characterized in that: It includes a first electromagnetic lock, a second electromagnetic lock, and the Bluetooth lock control circuit as claimed in claim 2; The first electromagnetic lock is electrically connected to the first electromagnetic lock interface in the Bluetooth lock control circuit; The second electromagnetic lock is electrically connected to the second electromagnetic lock interface in the Bluetooth lock control circuit.

10. An energy storage device, characterized in that: It comprises an energy storage device body and a Bluetooth lock module as claimed in claim 8 or 9; The energy storage device body is electrically connected to the Bluetooth lock module.

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