CN215343978U - Intelligent battery, charger and electronic equipment - Google Patents
Intelligent battery, charger and electronic equipment Download PDFInfo
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- CN215343978U CN215343978U CN202121060112.8U CN202121060112U CN215343978U CN 215343978 U CN215343978 U CN 215343978U CN 202121060112 U CN202121060112 U CN 202121060112U CN 215343978 U CN215343978 U CN 215343978U
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Abstract
The utility model discloses an intelligent battery, a charger and electronic equipment. During the long-term shelf of the intelligent battery, the charger sends a wake-up signal to a wake-up switch unit of the intelligent battery at regular time. The wake-up switch unit is switched on under the trigger of the wake-up signal, and then the wake-up signal is sent to the first main control unit. The first main control unit is awakened after receiving the awakening signal, the electric quantity of the battery is acquired, and a switch control signal is sent to the grounding switch unit, so that the grounding switch unit is conducted, and the charger and the first main control unit are grounded together. After the charger and the first main control unit are commonly established, the first main control unit can communicate with the charger through a serial port, and the electric quantity of the battery is fed back to the charger through serial port communication. When the electric quantity of the battery is lower than the preset value, the charger charges the battery, so that the battery maintains proper electric quantity, and the service life of the battery is prolonged.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to an intelligent battery, a charger and electronic equipment.
Background
Smart batteries, also known as Smart Battery Systems (SBS), are a branch and an important component of modern power technology. Smart batteries utilize internal electronics to measure, calculate and store battery data, which makes the use and management of power more predictable.
The existing intelligent battery is generally shut down after being fully charged on a charger. If the battery is not used for a long time and the intelligent battery is not started to be charged regularly, the electric quantity of the intelligent battery can be slowly attenuated due to the self-consumption of the battery, and even the intelligent battery is overdischarged to cause scrapping.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides an intelligent battery, a charger and electronic equipment, which can avoid the problem of over-discharge of the intelligent battery caused by long-term unused placement of the intelligent battery and prolong the service life of the intelligent battery.
In a first aspect, an embodiment of the present invention provides an intelligent battery, including: the first main control unit is connected with the wake-up switch unit;
the wake-up switch unit is connected with the first main control unit and is used for responding to a wake-up signal sent by a charger to be conducted and sending the wake-up signal to the first main control unit;
the first main control unit is connected with the control end of the grounding switch unit and responds to the awakening signal to send a switch control signal to the control end of the grounding switch unit;
the first end of the grounding switch unit is connected with the grounding end of the first main control unit, the second end of the grounding switch unit is used for connecting the grounding end of the charger, and the grounding switch unit is conducted in response to the switch control signal so as to enable the charger and the first main control unit to be grounded;
the serial port communication end of the first main control unit is used for being connected with the serial port communication end of the charger, and after the charger and the first main control unit are grounded together, the first main control unit feeds back the electric quantity of the battery to the charger through the serial port communication end;
the battery is respectively connected with the charger and the first main control unit, the first main control unit responds to the awakening signal to acquire the electric quantity of the battery, and the charger charges the battery when the electric quantity of the battery is lower than a preset value.
Optionally, the wake-up switch unit includes an optocoupler, a first resistor, and a second resistor;
the first end of the first resistor is used for being connected with a wake-up signal output end of the charger, the second end of the first resistor is connected with the first end of the light emitter of the optocoupler, and the second end of the light emitter of the optocoupler is grounded;
the first end of the second resistor is connected with a reference voltage source, and the second end of the second resistor is connected with the first end of a light receiver of the optical coupler;
the first end of the light receptor of the optical coupler is connected with the awakening signal input end of the first main control unit, and the second end of the light receptor of the optical coupler is grounded.
Optionally, the grounding switch unit includes a charging MOS transistor and a discharging MOS transistor;
the first end of the charging MOS tube is used for being connected with the grounding end of the charger, the second end of the charging MOS tube is connected with the first end of the discharging MOS tube, and the control end of the charging MOS tube is connected with the charging control signal output end of the first main control unit;
the second end of the discharge MOS tube is connected with the grounding end of the first main control unit, and the control end of the discharge MOS tube is connected with the discharge control signal output end of the first main control unit.
Optionally, the grounding switch unit further includes a protection MOS transistor;
the first end of the protection MOS tube is connected with the charging control signal output end of the first main control unit, the second end of the protection MOS tube is connected with the control end of the charging MOS tube, and the control end of the protection MOS tube is connected with the grounding end of the first main control unit.
Optionally, the charging MOS transistor, the discharging MOS transistor, and the protection MOS transistor are N-type MOS transistors or P-type MOS transistors.
Optionally, the drain of the charging MOS transistor is connected to the drain of the discharging MOS transistor.
Optionally, the first main control unit is a main control chip;
the wake-up signal input end of the main control chip is connected with the wake-up switch unit, the switch control signal output end of the main control chip is connected with the control end of the grounding switch unit, the grounding end of the main control chip is connected with the first end of the grounding switch unit, and the serial port communication end of the main control chip is used for being connected with the serial port communication end of the charger.
Optionally, the first main control unit includes a main control chip and a battery sampling chip;
the wake-up signal input end of the main control chip is connected with the wake-up switch unit, the grounding end of the main control chip is connected with the first end of the grounding switch unit, and the serial port communication end of the main control chip is used for being connected with the serial port communication end of the charger;
the main control chip is in communication connection with the battery sampling chip, the battery sampling chip is used for collecting working data of the battery and sending the working data to the main control chip, and the main control chip determines the electric quantity of the battery according to the working data and feeds the electric quantity back to the charger;
and the switch control signal output end of the battery sampling chip is connected with the control end of the grounding switch unit.
In a second aspect, an embodiment of the present invention provides a charger, including a second main control unit, where an awake signal output end of the second main control unit is used to connect an awake switch unit of an intelligent battery, a serial communication end of the second main control unit is used to connect a serial communication end of a first main control unit of the intelligent battery, and a ground end of the second main control unit is used to connect a ground switch unit of the intelligent battery.
In a third aspect, an embodiment of the present invention provides an electronic device, including the smart battery according to the first aspect of the present invention.
The intelligent battery provided by the embodiment of the utility model comprises: the first main control unit is connected with the wake-up switch unit. The wake-up switch unit is connected with the first main control unit, the first main control unit is connected with the control end of the grounding switch unit, the first main control unit responds to the wake-up signal and sends a switch control signal to the control end of the grounding switch unit, the first end of the grounding switch unit is connected with the grounding end of the first main control unit, the second end of the grounding switch unit is used for being connected with the grounding end of the charger, the serial communication end of the first main control unit is used for being connected with the serial communication end of the charger, and the battery is connected with the charger and the first main control unit respectively. During the long-term shelf of the intelligent battery, the charger sends a wake-up signal to a wake-up switch unit of the intelligent battery at regular time. The wake-up switch unit is switched on under the trigger of the wake-up signal, and then the wake-up signal is sent to the first main control unit. The first main control unit is awakened after receiving the awakening signal, the electric quantity of the battery is acquired, and a switch control signal is sent to the grounding switch unit, so that the grounding switch unit is conducted, and the charger and the first main control unit are grounded together. After the charger and the first main control unit are commonly established, the first main control unit can communicate with the charger through a serial port, and the electric quantity of the battery is fed back to the charger through serial port communication. When the electric quantity of the battery is lower than the preset value, the charger charges the battery, so that the battery maintains proper electric quantity, and the service life of the battery is prolonged.
Drawings
The utility model is explained in more detail below with reference to the figures and examples.
Fig. 1 is a schematic structural diagram of an intelligent battery according to an embodiment of the present invention;
fig. 2 is a circuit structure diagram of an intelligent battery according to an embodiment of the present invention;
fig. 3 is a circuit configuration diagram of another smart battery according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a charger according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.
Fig. 1 is a schematic structural diagram of an intelligent battery according to an embodiment of the present invention, and as shown in fig. 1, the intelligent battery includes a wake-up switch unit 110, a first main control unit 120, a ground switch unit 130, and a battery 140.
The input end of the wake-up switch unit 110 is used for connecting a wake-up signal output end of the charger, and the output unit of the wake-up switch unit 110 is connected with a wake-up signal input end of the first main control unit 120. The wake-up switch unit 110 is configured to be turned on in response to a wake-up signal sent by the charger, and send the wake-up signal to the first main control unit 120.
The first main control unit 120 and the switch control signal output end are connected to the control end of the ground switch unit 130, and the first main control unit 120 sends a switch control signal to the control end of the ground switch unit 130 in response to the wake-up signal.
A first end of the ground switch unit 130 is connected to the ground terminal DGND of the first main control unit 120, and a second end of the ground switch unit 130 is used for connecting to the ground terminal PGND of the charger. The ground switch unit 130 is turned on in response to the switch control signal transmitted by the first main control unit 120 to make the charger and the first main control unit 120 common to ground.
The serial communication end of the first main control unit 120 is used for connecting the serial communication end of the charger, and after the charger and the first main control unit 120 are grounded, the first main control unit 120 feeds back the electric quantity of the battery 140 to the charger through the serial communication end. Serial communication is a data transmission mode that can convert received parallel data characters into a continuous serial data stream and transmit the serial data stream, and can convert the received serial data stream into parallel data characters. Serial communication transmits and receives bytes in bits (bit), and may use one line to transmit data while using another line to receive data. The communication is performed using 3 lines, namely, a ground line GND, a transmission line TX, and a reception line RX. The serial communication requires that two devices for communication share the same ground, so that the two devices have the same reference voltage to normally communicate.
The battery 140 is connected to the charger and the first main control unit 120, the first main control unit 120 obtains the power of the battery 140 in response to the wake-up signal, and the charger charges the battery 140 when the power of the battery 140 is lower than a preset value.
Specifically, when the intelligent battery needs to be placed for a long time and is not used, the intelligent battery is connected with the charger, the charger is connected with the power supply, and the intelligent battery is shut down after the intelligent battery is fully charged. During long-term parking of the smart battery, the charger sends a wake-up signal to the smart battery's wake-up switch unit 110 at regular times (e.g., every 5 days). The wake-up switch unit 110 is turned on by the wake-up signal, and then sends the wake-up signal to the first main control unit 120. The first main control unit 120 is awakened after receiving the awakening signal, acquires the electric quantity of the battery 140, and sends a switch control signal to the grounding switch unit 130, so that the grounding switch unit 130 is turned on, and the charger and the first main control unit 120 share the ground. After the charger and the first main control unit 120 are commonly established, the first main control unit 120 may communicate with the charger through a serial port, and feed back the electric quantity of the battery 140 to the charger through serial port communication. The charger charges the battery 140 when the charge level of the battery 140 is lower than a preset value. Specifically, when the lithium battery is not used for a long time, 50% -80% of electric quantity should be kept. In the embodiment of the utility model, when the electric quantity of the battery 140 is lower than 65%, the charger charges the battery 140, so that the electric quantity of the battery is maintained between 65% and 80%, the risk of scrapping caused by over discharge of the battery 140 is avoided, and the service life of the battery is prolonged.
The intelligent battery provided by the embodiment of the utility model comprises: the first main control unit is connected with the wake-up switch unit. The wake-up switch unit is connected with the first main control unit, the first main control unit is connected with the control end of the grounding switch unit, the first main control unit responds to the wake-up signal and sends a switch control signal to the control end of the grounding switch unit, the first end of the grounding switch unit is connected with the grounding end of the first main control unit, the second end of the grounding switch unit is used for being connected with the grounding end of the charger, the serial communication end of the first main control unit is used for being connected with the serial communication end of the charger, and the battery is connected with the charger and the first main control unit respectively. During the long-term shelf of the intelligent battery, the charger sends a wake-up signal to a wake-up switch unit of the intelligent battery at regular time. The wake-up switch unit is switched on under the trigger of the wake-up signal, and then the wake-up signal is sent to the first main control unit. The first main control unit is awakened after receiving the awakening signal, the electric quantity of the battery is acquired, and a switch control signal is sent to the grounding switch unit, so that the grounding switch unit is conducted, and the charger and the first main control unit are grounded together. After the charger and the first main control unit are commonly established, the first main control unit can communicate with the charger through a serial port, and the electric quantity of the battery is fed back to the charger through serial port communication. When the electric quantity of the battery is lower than the preset value, the charger charges the battery, so that the battery maintains proper electric quantity, and the service life of the battery is prolonged.
Fig. 2 is a circuit structure diagram of an intelligent battery according to an embodiment of the present invention, and as shown in fig. 2, in this embodiment, a wake-up switch unit includes an optocoupler U2, a first resistor R1, and a second resistor R2.
The first end of the first resistor R1 is used for connecting a wake-UP signal output end W _ UP of the charger, the second end of the first resistor R1 is connected with the first end of the light emitter of the optocoupler U2, and the second end of the light emitter of the optocoupler U2 is grounded PGND.
The first end of the second resistor R2 is connected with a reference voltage source 3V3, the reference voltage source is an analog 3.3V voltage source provided inside the intelligent battery, and the second end of the second resistor R2 is connected with the first end of the light receiver of the optocoupler U2.
The first end of the light receiver of the optical coupler U2 is connected with the awakening signal input end of the first main control unit, and the second end of the light receiver of the optical coupler U2 is grounded DGND.
In this embodiment, the first master unit is a master chip U3. The WAKE-up signal input end WAKE of the main control chip U3 is connected with the WAKE-up switch unit (namely connected with the first end of the light receiver of the optocoupler U2), the switch control signal output end ground of the main control chip U3 is connected with the control end of the switch unit, the grounding end of the main control chip U3 is connected with the first end of the ground switch unit, and the serial port communication end of the main control chip U3 is used for connecting the serial port communication end of the charger.
Specifically, after the intelligent battery is connected to the charger, when the intelligent battery is in a shutdown state, the charger sends a high level (the rest time is a low level) to the main control chip U3 of the intelligent battery at regular time through the wake-UP signal output terminal W _ UP. Under the action of high level, the light emitter of the optocoupler U2 emits light, the light receiver is switched on, and the WAKE-up signal input end WAKE of the main control chip U3 is pulled down to low level. The main control chip U3 recognizes the level change of the WAKE-up signal input terminal WAKE, obtains the electric quantity of the battery BAT, and sends a switch control signal to the ground switch unit.
Illustratively, in this embodiment, the grounding switch unit includes a charging MOS transistor and a discharging MOS transistor. The first end of the charging MOS tube is used for being connected with the grounding end of the charger, the second end of the charging MOS tube is connected with the first end of the discharging MOS tube, and the control end of the charging MOS tube is connected with the charging control signal output end of the first main control unit. The second end of the discharge MOS tube is connected with the grounding end of the first main control unit, and the control end of the discharge MOS tube is connected with the discharge control signal output end of the first main control unit. The first main control unit sends out a control signal to control the charging MOS tube and the discharging MOS tube to be conducted, so that the charger and the first main control unit are grounded, serial port communication can be carried out between the charger and the first main control unit, and the first main control unit feeds back the electric quantity of the battery to the charger.
In some embodiments of the present invention, the ground switch unit further includes a protection MOS transistor, a first end of the protection MOS transistor is connected to the charging control signal output end of the first main control unit, a second end of the protection MOS transistor is connected to the control end of the charging MOS transistor, and the control end of the protection MOS transistor is connected to the ground end of the first main control unit. The first main control unit is prevented from being damaged when the voltage of the ground end of the charger is lower than the voltage of the ground end of the first main control unit.
In the embodiment of the present invention, the charging MOS transistor, the discharging MOS transistor, and the protection MOS transistor may be N-type MOS transistors or P-type MOS transistors, which is not limited herein.
Specifically, as shown in fig. 2, the grounding switch unit includes a charging MOS transistor Q1, a discharging MOS transistor Q2, and a protection MOS transistor Q3. The first end of the protection MOS transistor Q3 is connected to the charging control signal output terminal CHG of the main control chip U3, the second end of the protection MOS transistor Q3 is connected to the control end of the charging MOS transistor Q1, and the control end of the protection MOS transistor Q3 is connected to the ground terminal DGND of the main control chip U3. The first end of the charging MOS transistor Q1 is used for being connected to the ground terminal PGND of the charger, and the second end of the charging MOS transistor Q1 is connected to the first end of the discharging MOS transistor Q2 (specifically, the drain of the charging MOS transistor Q1 is connected to the drain of the discharging MOS transistor Q2). The second end of the discharge MOS transistor Q2 is connected to the ground DGND of the main control chip U3, and the control end of the discharge MOS transistor Q2 is connected to the discharge control signal output end DSG of the main control chip U3. Illustratively, the charging MOS transistor Q1 and the discharging MOS transistor Q2 are N-type MOS transistors, and the protection MOS transistor Q3 is a P-type MOS transistor.
The charging MOS transistor Q1 and the discharging MOS transistor Q2 play roles of overcharge protection and over-discharge protection. In the process of charging the battery, the charging control signal output terminal CHG and the discharging control signal output terminal DSG of the main control chip U3 output high level signals simultaneously, so that the charging MOS transistor Q1, the discharging MOS transistor Q2 and the protection MOS transistor Q3 are turned on, and the charger can charge the battery BAT. When the battery is overcharged, the charging control signal output end CHG of the main control chip U3 sends out a low level, so that the charging MOS transistor Q1 is turned off, and the charger stops charging the battery BAT. In the discharging process, the charging control signal output terminal CHG and the discharging control signal output terminal DSG of the main control chip U3 simultaneously output high level signals, so that the charging MOS transistor Q1, the discharging MOS transistor Q2 and the protection MOS transistor Q3 are turned on, and the battery BAT supplies power to external equipment. When the battery is over-discharged, the discharge control signal output end DSG of the main control chip U3 sends a low level, so that the discharge MOS transistor Q2 is turned off, and the battery BAT stops supplying power to the outside.
For safety reasons, when the intelligent battery is in a shutdown state, the charging MOS transistor Q1 and the discharging MOS transistor Q2 on the ground line are normally in an off state, so the internal system ground of the intelligent battery is disconnected from the system ground of the charger. Therefore, in the long-term storage and non-use process of the intelligent battery, the charger sends the wake-up signal to the intelligent battery at regular time, the intelligent battery controls the conduction of the charging MOS tube Q1 and the discharging MOS tube Q2 after receiving the wake-up signal, so that the intelligent battery and the charger are in common ground, the intelligent battery and the charger communicate in a serial port communication mode, the charger obtains the electric quantity of the battery fed back by the intelligent battery, and when the electric quantity of the battery is lower than a preset value, the intelligent battery is charged, the battery maintains proper electric quantity, and the service life of the intelligent battery is prolonged.
In some embodiments of the present invention, the first master control unit includes a master control chip and a battery sampling chip. Fig. 3 is a circuit structure diagram of another intelligent battery according to an embodiment of the present invention, and as shown in fig. 3, the difference between this embodiment and the embodiment shown in fig. 2 is that the first main control unit includes a main control chip and a battery sampling chip, and the same parts are not described herein again.
Specifically, the WAKE-up signal input end WAKE of the main control chip U3 is connected to the WAKE-up switch unit (i.e., connected to the first end of the light receiver of the optocoupler U2), the ground end DGND of the main control chip U3 is connected to the first end of the ground switch unit (i.e., the second end of the discharge MOS transistor Q2), and the serial port communication end of the main control chip U3 is used for connecting the serial port communication end of the charger.
The main control chip U3 is in communication connection with the battery sampling chip U4, the battery sampling chip U4 is used for collecting working data (such as voltage, temperature and the like) of the battery BAT and sending the working data to the main control chip U3, and the main control chip U3 determines the electric quantity of the battery BAT according to the working data and feeds the electric quantity back to the charger through serial port communication.
And the switch control signal output end of the battery sampling chip U4 is connected with the control end of the grounding switch unit. Specifically, a charging control signal output terminal CHG of the battery sampling chip U4 is connected to a first terminal of the protection MOS transistor Q3, a second terminal of the protection MOS transistor Q3 is connected to a control terminal of the charging MOS transistor Q1, and a control terminal of the protection MOS transistor Q3 is connected to a ground terminal DGND of the main control chip U3. The first end of the charging MOS transistor Q1 is used for connecting the ground terminal PGND of the charger, and the second end of the charging MOS transistor Q1 is connected to the first end of the discharging MOS transistor Q2. The second end of the discharge MOS transistor Q2 is connected to the ground terminal DGND of the main control chip U3, and the control end of the discharge MOS transistor Q2 is connected to the discharge control signal output terminal DSG of the battery sampling chip U4.
Specifically, the main control chip U3 recognizes the level change of the WAKE signal input terminal WAKE, obtains the working data collected by the battery sampling chip U4, and calculates the electric quantity of the battery BAT. Meanwhile, the main control chip U3 sends a command to the battery sampling chip U4, so that the charging control signal output end CHG and the discharging control signal output end DSG of the battery sampling chip U4 output high-level signals simultaneously, the charging MOS tube Q1, the discharging MOS tube Q2 and the protection MOS tube Q3 are conducted, so that the main control chip U3 shares the ground with the charger, the main control chip U3 communicates with the charger in a serial port communication mode, the charger acquires the electric quantity of the battery fed back by the intelligent battery, when the electric quantity of the battery is lower than a preset value, the intelligent battery is charged, the battery maintains the proper electric quantity, and the service life of the intelligent battery is prolonged.
Example two
The utility model also provides a charger which comprises a second main control unit, wherein the awakening signal output end of the second main control unit is used for being connected with the awakening switch unit of the intelligent battery, the serial port communication end of the second main control unit is used for being connected with the serial port communication end of the first main control unit of the intelligent battery, and the grounding end of the second main control unit is used for being connected with the grounding switch unit of the intelligent battery.
Fig. 4 is a schematic structural diagram of a charger according to an embodiment of the present invention, and as shown in fig. 4, the charger includes a second main control unit, which is exemplarily a control chip U1, a wake-UP signal output terminal W _ UP of the control chip U1 is used for connecting a wake-UP switch unit of an intelligent battery, a serial communication terminal of the control chip U1 is used for connecting a serial communication terminal of a first main control unit of the intelligent battery, and a ground terminal of the control chip U1 is used for connecting a ground switch unit of the intelligent battery. Specifically, the working processes of the charger and the smart battery are described in detail in the foregoing embodiments, and the present embodiment is described herein.
An embodiment of the present invention further provides an electronic device, including the intelligent battery provided in any of the above embodiments of the present invention, where the electronic device may be an unmanned device such as an unmanned vehicle, an unmanned aerial vehicle, or a robot, and the present invention is not limited herein.
In the description herein, it is to be understood that the terms "upper", "lower", "left", "right", and the like are used in a descriptive sense or positional relationship based on the orientation or positional relationship shown in the drawings for convenience in description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention.
In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the utility model and should not be construed in any way as limiting the scope of the utility model. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. A smart battery, comprising: the first main control unit is connected with the wake-up switch unit;
the wake-up switch unit is connected with the first main control unit and is used for responding to a wake-up signal sent by a charger to be conducted and sending the wake-up signal to the first main control unit;
the first main control unit is connected with the control end of the grounding switch unit and responds to the awakening signal to send a switch control signal to the control end of the grounding switch unit;
the first end of the grounding switch unit is connected with the grounding end of the first main control unit, the second end of the grounding switch unit is used for connecting the grounding end of the charger, and the grounding switch unit is conducted in response to the switch control signal so as to enable the charger and the first main control unit to be grounded;
the serial port communication end of the first main control unit is used for being connected with the serial port communication end of the charger, and after the charger and the first main control unit are grounded together, the first main control unit feeds back the electric quantity of the battery to the charger through the serial port communication end;
the battery is respectively connected with the charger and the first main control unit, the first main control unit responds to the awakening signal to acquire the electric quantity of the battery, and the charger charges the battery when the electric quantity of the battery is lower than a preset value.
2. The smart battery of claim 1, wherein the wake-up switch unit comprises an optocoupler, a first resistor, and a second resistor;
the first end of the first resistor is used for being connected with a wake-up signal output end of the charger, the second end of the first resistor is connected with the first end of the light emitter of the optocoupler, and the second end of the light emitter of the optocoupler is grounded;
the first end of the second resistor is connected with a reference voltage source, and the second end of the second resistor is connected with the first end of a light receiver of the optical coupler;
the first end of the light receptor of the optical coupler is connected with the awakening signal input end of the first main control unit, and the second end of the light receptor of the optical coupler is grounded.
3. The smart battery according to claim 1, wherein the grounding switch unit comprises a charging MOS transistor and a discharging MOS transistor;
the first end of the charging MOS tube is used for being connected with the grounding end of the charger, the second end of the charging MOS tube is connected with the first end of the discharging MOS tube, and the control end of the charging MOS tube is connected with the charging control signal output end of the first main control unit;
the second end of the discharge MOS tube is connected with the grounding end of the first main control unit, and the control end of the discharge MOS tube is connected with the discharge control signal output end of the first main control unit.
4. The smart battery according to claim 3, wherein the grounding switch unit further comprises a protection MOS tube;
the first end of the protection MOS tube is connected with the charging control signal output end of the first main control unit, the second end of the protection MOS tube is connected with the control end of the charging MOS tube, and the control end of the protection MOS tube is connected with the grounding end of the first main control unit.
5. The smart battery according to claim 4, wherein the charging MOS transistor, the discharging MOS transistor and the protection MOS transistor are N-type MOS transistors or P-type MOS transistors.
6. The smart battery according to claim 5, wherein the drain of the charging MOS transistor is connected with the drain of the discharging MOS transistor.
7. The intelligent battery according to any of claims 1-6, wherein the first master control unit is a master control chip;
the wake-up signal input end of the main control chip is connected with the wake-up switch unit, the switch control signal output end of the main control chip is connected with the control end of the grounding switch unit, the grounding end of the main control chip is connected with the first end of the grounding switch unit, and the serial port communication end of the main control chip is used for being connected with the serial port communication end of the charger.
8. The intelligent battery according to any one of claims 1-6, wherein the first master control unit comprises a master control chip and a battery sampling chip;
the wake-up signal input end of the main control chip is connected with the wake-up switch unit, the grounding end of the main control chip is connected with the first end of the grounding switch unit, and the serial port communication end of the main control chip is used for being connected with the serial port communication end of the charger;
the main control chip is in communication connection with the battery sampling chip, the battery sampling chip is used for collecting working data of the battery and sending the working data to the main control chip, and the main control chip determines the electric quantity of the battery according to the working data and feeds the electric quantity back to the charger;
and the switch control signal output end of the battery sampling chip is connected with the control end of the grounding switch unit.
9. The utility model provides a charger, its characterized in that, includes the second main control unit, the awakening signal output part of second main control unit is used for connecting the awakening switch unit of intelligent battery, the serial port communication end of second main control unit is used for connecting the serial port communication end of the first main control unit of intelligent battery, the earthing terminal of second main control unit is used for connecting the earthing switch unit of intelligent battery.
10. An electronic device, characterized in that it comprises a smart battery according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121060112.8U CN215343978U (en) | 2021-05-17 | 2021-05-17 | Intelligent battery, charger and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121060112.8U CN215343978U (en) | 2021-05-17 | 2021-05-17 | Intelligent battery, charger and electronic equipment |
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| Publication Number | Publication Date |
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| CN215343978U true CN215343978U (en) | 2021-12-28 |
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| CN202121060112.8U Active CN215343978U (en) | 2021-05-17 | 2021-05-17 | Intelligent battery, charger and electronic equipment |
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| Country | Link |
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| CN (1) | CN215343978U (en) |
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