Battery, charging and discharging system and electronic equipment

Abstract

The invention relates to a battery, a charging and discharging system and electronic equipment. The battery comprises a battery cell; the control module comprises a signal adjusting unit and a control unit; the control unit is used for receiving a first electric signal of external equipment through the positive electrode end of the battery and controlling the signal adjusting unit to generate a second electric signal based on the first electric signal; the first electric signal carries first communication information, and the second electric signal carries second communication information; and the control unit is also used for returning the second electric signal to the external equipment through the positive electrode end. The function of communication between the battery and the external equipment can be realized.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery, a charging and discharging system, and an electronic device. Background Technology

[0002] With the continuous development of technology, batteries are being used in more and more fields. Dry cell batteries have a very wide range of applications in daily life. In the fields of dry cell batteries and lithium-to-dry cell batteries, current technology can only charge and discharge them. Summary of the Invention

[0003] This application provides a battery, a charging and discharging system, and an electronic device that enables data interaction between the battery body and external devices.

[0004] The first aspect of this application provides a battery, comprising:

[0005] Battery cell;

[0006] The control module includes a signal conditioning unit and a control unit;

[0007] The control unit is configured to receive a first electrical signal from an external device via the positive terminal of the battery and control the signal conditioning unit to generate a second electrical signal based on the first electrical signal; the first electrical signal carries first communication information and the second electrical signal carries second communication information.

[0008] The control unit is also configured to return the second electrical signal to the external device through the positive terminal.

[0009] In one embodiment, the control unit is further configured to decode the first communication information based on the first electrical signal, and control the signal conditioning unit to generate a second electrical signal based on the first communication information; the first electrical signal includes a first pulse width, and the second electrical signal includes a second pulse width.

[0010] In one embodiment, the signal conditioning unit includes a resistor sub-unit connected to the main circuit of the battery cell; the control unit is used to control the connection state of the resistor sub-unit based on the first electrical signal to change the current magnitude in the main circuit of the battery cell to form the second electrical signal.

[0011] In one embodiment, the resistor subunit includes a first resistor and a second resistor; one end of the first resistor is connected to one end of the second resistor, and the other end of the first resistor is connected to an equivalent ground terminal;

[0012] One end of the first resistor is configured with a first voltage; the other end of the second resistor is configured with a second voltage;

[0013] The control unit is used to control the connection state of the first resistor and the second resistor by controlling the second voltage, so as to control the current magnitude of the main circuit of the battery cell.

[0014] In one embodiment, the control unit includes:

[0015] A charge / discharge management unit is used to connect the battery cell, the signal conditioning unit, and the positive terminal of the battery to form the main circuit of the battery cell;

[0016] A battery management unit is configured to control the signal conditioning unit based on the acquired first electrical signal to generate the second electrical signal.

[0017] In one embodiment, the charge / discharge management unit includes a first pin, a second pin, and a third pin; the first pin is connected to the positive terminal of the battery, the second pin is connected to the signal conditioning unit, and the third pin is connected to the positive terminal of the battery cell; the negative terminal of the battery cell is connected to an equivalent ground terminal.

[0018] The charge / discharge management unit is used to connect the signal conditioning unit to the main circuit of the battery cell through the second pin; it is also used to provide a voltage source for the main circuit of the battery cell through the third pin.

[0019] In one embodiment, the charge / discharge management unit further includes a fourth pin, which is connected to the battery management unit;

[0020] The charge / discharge management unit is further configured to transmit the first electrical signal obtained through the first pin to the battery management unit.

[0021] In one embodiment, the battery management unit is also connected to the positive terminal of the battery to acquire the first electrical signal.

[0022] In one embodiment, the signal conditioning unit includes a first resistor and a second resistor, one end of the first resistor is connected to one end of the second resistor, and the other end of the first resistor is connected to an equivalent ground terminal.

[0023] One end of the first resistor is also connected to the charge / discharge management unit; the other end of the second resistor is connected to the battery management unit.

[0024] The battery management unit is used to control the connection state of the first resistor and the second resistor to change the current magnitude of the main circuit of the battery cell, thereby generating the second electrical signal.

[0025] In one embodiment, it further includes:

[0026] A temperature acquisition unit, wherein the temperature acquisition unit is connected to the battery management unit;

[0027] The battery management unit is used to acquire the temperature parameters of the battery acquired by the temperature acquisition unit, and control the signal conditioning unit to generate the second electrical signal based on the temperature parameters;

[0028] The battery management unit is also used to turn off or on the main circuit of the battery cell according to the temperature parameter.

[0029] In one embodiment, the temperature acquisition unit includes a third resistor and a fourth resistor; the third resistor or the fourth resistor is a thermistor;

[0030] One end of the third resistor is connected to the low-level output pin of the battery management unit, and the other end of the third resistor is connected to one end of the fourth resistor and the sampling pin of the battery management unit, respectively. The other end of the fourth resistor is connected to the high-level output pin of the battery management unit.

[0031] The battery management unit is also used to obtain the temperature parameter through the sampling pin.

[0032] In one embodiment, the battery management unit is also connected to the positive terminal of the battery cell to collect the voltage parameters of the battery cell and control the signal conditioning unit based on the voltage parameters to generate the second electrical signal.

[0033] In one embodiment, the battery is configured to charge the cell via an external device through the positive terminal of the cell's main circuit, and to discharge the cell to an external device via the positive terminal of the cell's main circuit; or

[0034] The battery is used to discharge the battery cell to an external device through the positive terminal of the main circuit of the battery cell.

[0035] In one embodiment, the control unit is further configured to control the signal conditioning unit to adjust the charging speed mode of the battery cell when an external device charges the battery cell through the positive terminal.

[0036] In one embodiment, a positive cap is also included, which is connected to the positive terminal of the battery, and the cell includes at least one of a lithium battery cell or a dry cell.

[0037] A second aspect of this application provides a charging and discharging system, including a charging device and the aforementioned battery;

[0038] The charging device is used to charge the battery;

[0039] The charging device is also used to send the first electrical signal to the battery and receive the second electrical signal sent by the battery;

[0040] The charging device is also used to determine and display target data based on the second electrical signal.

[0041] A third aspect of this application provides an electronic device that includes the battery described above, or that includes the charging and discharging system described above.

[0042] The aforementioned battery includes a cell and a control module. The control module includes a signal conditioning unit and a control unit. The control unit receives a first electrical signal from an external device through the positive terminal of the battery and controls the signal conditioning unit to generate a second electrical signal based on the first electrical signal. The second electrical signal is then returned to the external device through the positive terminal. The first electrical signal carries first communication information, and the second electrical signal carries second communication information. This enables communication between the battery and the external device. Furthermore, this application utilizes the battery's existing positive terminal for communication, improving the functional reuse of the positive terminal, reducing the number of physical ports and the internal resistance of the battery's main circuit, reducing circuit wiring complexity, and lowering costs. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is one of the module structures of the battery in one embodiment;

[0045] Figure 2 This is a second module structure of the battery in one embodiment;

[0046] Figure 3 This is a square wave diagram of the first electrical signal of the battery in one embodiment;

[0047] Figure 4 This is a square wave diagram of the second electrical signal of the battery in one embodiment;

[0048] Figure 5 This is the third module structure of the battery in one embodiment;

[0049] Figure 6 This is the fourth module structure of the battery in one embodiment;

[0050] Figure 7 This is the fifth module structure of the battery in one embodiment;

[0051] Figure 8 This is the sixth module structure of the battery in one embodiment;

[0052] Figure 9 This is the seventh module structure of the battery in one embodiment;

[0053] Figure 10 This is the eighth module structure of the battery in one embodiment;

[0054] Figure 11 This is the ninth module structure of the battery in one embodiment;

[0055] Figure 12 This is the tenth module structure of the battery in one embodiment;

[0056] Figure 13 This refers to the battery type in one embodiment.

[0057] Explanation of reference numerals in the attached diagram: 100-Battery; 110-Cell; 120-Control module; 121-Signal conditioning unit; 122-Control unit; 1211-Resistor subunit; 130-Voltage conditioning unit; 140-Temperature acquisition unit; 210-First management module; 220-Second management module; 300-Cylindrical battery; 400-External device; R1-First resistor; R2-Second resistor; R3-Third resistor; R4-Fourth resistor; U1-Charge / discharge management unit; U2-Battery management unit. Detailed Implementation

[0058] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0059] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0060] It is understood that the terms "first," "second," etc., used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of this application, a first resistor may be referred to as a second resistor, and similarly, a second resistor may be referred to as a first resistor. Both the first resistor and the second resistor are resistors, but they are not the same resistor.

[0061] It is understood that the term "connection" in the following embodiments should be understood as "electrical connection," "communication connection," etc., if the connected circuits, modules, units, etc., have electrical signal or data transmission with each other.

[0062] It is understandable that "at least one" refers to one or more, and "multiple" refers to two or more. "At least a part of an element" refers to part or all of an element.

[0063] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising / including” or “having,” etc., specify the presence of the stated features, wholes, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof. Meanwhile, the term “and / or” as used in this specification includes any and all combinations of the associated listed items.

[0064] In the fields of dry cell batteries or lithium-to-dry cell batteries, due to their typically low-voltage (mostly less than 10 volts) and small-scale applications, such as remote controls, mice, keyboards, flashlights, camping lights, and electronic toys, these batteries can only be charged and discharged; they cannot achieve data interaction between the battery itself and external devices. Furthermore, existing batteries cannot communicate with external devices during use.

[0065] Therefore, in order to solve the above problems, this application proposes a battery, a charging and discharging system, and an electronic device.

[0066] The following description, in conjunction with the accompanying drawings, illustrates the battery, charging / discharging system, and electronic device according to embodiments of this application.

[0067] Figure 1 This illustration shows one of the schematic diagrams of the module structure of the battery 100 provided in an embodiment of this application. For example... Figure 1 As shown, the battery 100 includes a battery cell 110 and a control module 120. The control module 120 includes a signal conditioning unit 121 and a control unit 122. The battery cell 110 is connected to the control unit 122. The control unit 122 can receive a first electrical signal from an external device 400 through the positive terminal of the battery 100, and control the signal conditioning unit 121 to generate a second electrical signal based on the first electrical signal. The control unit 122 transmits the second electrical signal to the external device 400 through the positive terminal of the battery 100. The first electrical signal carries first communication information, and the second electrical signal carries second communication information.

[0068] Understandably, the first communication information is the communication information sent by the external device 400 to the battery 100, which can be handshake information, query information, control command information, and / or response information, such as handshake information between the battery and the battery 100, querying data information of the battery 100 (such as the ID number, temperature, voltage, current, etc. of the battery 100), and information controlling the battery 100 to switch between fast charging mode and slow charging mode, etc. The second communication information is the communication information sent by the battery 100 to the external device 400, which can be handshake confirmation information, query information, control command information, and / or response information, such as response information to the handshake between the battery and the external device 400, and information answering queries from the external device 400, etc. The specific content of the first and second communication information is not limited here and can be determined according to the specific application scenario. The external device 400 can include at least one of a charger, a load, etc., without limitation.

[0069] This embodiment enables communication between the battery 100 and the external device 400 via the positive terminal. In addition, it can effectively improve the functional reuse of the positive terminal, reduce the number of physical ports and the internal resistance of the main circuit of the battery cell, reduce the complexity of circuit wiring, and reduce costs.

[0070] In some embodiments, considering that the battery 100 may be out of power, it is necessary to charge the battery 100 until it reaches a certain level before the battery 100 communicates with the external device 400.

[0071] Optionally, if the external device 400 can both charge the battery 100 and communicate with the battery 100, the external device 400 first checks whether the battery 100 has power. If it does not have power, it charges the battery to a certain level before communicating with the battery 100.

[0072] Optionally, when the battery 100 has no power and an external device 400 that can both charge and communicate is selected, the battery 100 can be directly connected to the external device 400. Then, when the battery 100 is charged enough to start communicating with the external device 400, communication can begin. During the communication process, charging and communication can be divided into intermittent periods, i.e., a first charging period followed by a second communication period, and so on. Of course, this is just one feasible charging and communication method, and other communication and charging methods are also possible, without any restrictions.

[0073] Optionally, if there are two types of external devices 400, the first type can only communicate with the battery 100 and the second type can only charge the battery 100, then the second type of external device 400 is selected first to charge the battery 100. After charging to a certain level, the first type of external device 400 is selected to communicate with the battery 100.

[0074] Understandably, when battery 100 is depleted, there are no restrictions on the charging time or the amount of charge reached. For example, it can be charged until battery 100 can perform normal communication; there are no limitations on this. Taking the amount of charge as an example, if the charge level required for battery 100 to perform normal communication is 1%, then charging to 1% is sufficient. Alternatively, to prevent running out of power for subsequent communication, it can be charged to any amount between 2% and 10%, or even more. There are no restrictions on the amount of charge reached.

[0075] In some embodiments, the existing battery cell 110 comes in various types, such as lithium-ion battery cell 110 or dry cell cell 110, etc. Generally, the voltage provided by the lithium-ion battery cell 110 (e.g., 3.7 volts) is higher than that of the dry cell cell 110 (e.g., 1.5 volts). For low-voltage loads, the lithium-ion battery cell 110 needs to be stepped down to obtain the voltage of the dry cell cell 110 to replace the dry cell 100. This is because the lithium-ion battery cell 110 has advantages such as rechargeability, environmental friendliness and energy saving, large unit capacity, strong discharge capability, and stable power. Or, in some scenarios, a higher voltage is required, and the voltage provided by the battery cell 110 needs to be boosted before output. Therefore, in such scenarios, a boosting process is required. Figure 2 As shown, the battery 100 may also include a voltage regulation unit 130. The voltage regulation unit 130 is connected to the control unit 122 and the positive terminal of the battery 100. The control unit 122 controls the voltage regulation unit 130 to regulate the voltage output from the main circuit of the battery cell and outputs the regulated voltage to the external device 400 to supply power.

[0076] In some embodiments, the control unit 122 decodes the first electrical signal to determine the first communication information, and controls the signal adjustment unit 121 to generate the second electrical signal based on the first communication information.

[0077] Understandably, the first communication information carried by the first electrical signal needs to be decoded by the battery 100, and the second communication information carried by the second electrical signal needs to be decoded by the external device 400. The first electrical signal includes a first pulse width, and the second electrical signal includes a second pulse width. The pulse width refers to the time period during which the electrical signal reaches its maximum value (peak value). For example, the duration of the high level in a square wave signal is the pulse width. If the first electrical signal is a voltage signal, then the first pulse width is the duration of the voltage signal's maximum value; if the second electrical signal is a current signal, then the second pulse width is the duration of the current signal's maximum value. Figure 3 The diagram shows a square wave diagram where the first electrical signal is a voltage signal. Figure 4The diagram shows a square wave diagram where the second electrical signal is a current signal. The high and low values ​​of the electrical signal can be encoded into digital 0s and 1s. For example, the maximum value in the square wave represents 1, and the minimum value represents 0. Each 1 and 0 corresponds to a pulse width, and the corresponding communication information can be decoded based on the 0s and 1s with different pulse widths.

[0078] Optionally, the first electrical signal can be either a current signal or a voltage signal, and the second electrical signal can be either a current signal or a voltage signal; there are no restrictions on this.

[0079] Optionally, the first electrical signal is a voltage signal, and the second electrical signal is a current signal. To accelerate communication between the battery 100 and the external device 400, the second electrical signal is considered to be a current signal. This is because some circuits contain capacitors, causing voltage changes to be relatively slow. Therefore, communication via voltage fluctuations results in a longer process time. Using current changes for communication reduces communication time and speeds up communication. Of course, this approach is more advantageous when capacitors are present. Understandably, if communication time is not a concern, the second electrical signal can also be a voltage signal. Furthermore, in circuits without capacitors, the specific signal types of the first and second electrical signals can be determined based on the actual situation and are not limited here.

[0080] In some embodiments, the signal conditioning unit 121 includes a resistor sub-unit connected to the main circuit of the battery cell; the control unit 122 controls the connection state of the resistor sub-unit based on the first electrical signal to change the current magnitude in the main circuit of the battery cell to form a second electrical signal.

[0081] Understandably, the resistor sub-unit includes several resistors. The control unit 122 controls the connection state of the resistor sub-unit based on the first electrical signal, which means controlling the connection state of each resistor in the resistor sub-unit based on the first electrical signal, thereby changing the current magnitude in the main circuit of the battery cell to form a second electrical signal. Specifically, after receiving the first electrical signal, the control unit 122 decodes the first electrical signal to obtain first communication information, and obtains the response communication information based on the first communication information. The response communication information is then decoded into a control signal, and the connection state of the resistor sub-unit is controlled according to the control signal. The connection state of the resistor sub-unit can change the current magnitude in the main circuit of the battery cell; the alternation of high and low currents forms the second electrical signal. The control signal includes a control time, which corresponds to a second pulse width.

[0082] The above embodiments change the current in the main circuit of the battery cell by changing the connection state of the resistor sub-unit, and realize signal transmission using only a few simple resistor structures, reducing the complexity and cost of the structure, and playing a maximum role in limited circuit space.

[0083] In some embodiments, such as Figure 5As shown, the resistor subunit 1211 includes a first resistor R1 and a second resistor R2. One end of the first resistor R1 is connected to one end of the second resistor R2, and the other end of the first resistor R1 is connected to an equivalent ground terminal. One end of the first resistor R1 is configured with a first voltage, and the other end of the second resistor R2 is configured with a second voltage. The control unit 122 controls the second voltage to control the connection state of the first resistor R1 and the second resistor R2, thereby controlling the current magnitude of the main circuit of the battery cell.

[0084] Understandably, the first voltage can be high or low, and the second voltage can be high or low. The first voltage remains unchanged, and the connection state between the first resistor R1 and the second resistor R2 is achieved by changing the high or low level of the second voltage.

[0085] Optionally, if the first voltage is high and the second voltage is low, then the first resistor R1 and the second resistor R2 are connected in parallel, and the total resistance of the first resistor R1 and the second resistor R2 decreases. If both the first voltage and the second voltage are high, then the first resistor R1 and the second resistor R2 are connected in series, and the total resistance of the first resistor R1 and the second resistor R2 increases. If the second voltage is neither high nor low, then the second resistor R2 is in a high-resistance state and is not connected to the main circuit of the battery cell. Of course, this is just an example; the first and second voltages will differ in different circuits.

[0086] In some embodiments, the control unit 122 includes a charge / discharge management unit U1 and a battery management unit U2. The charge / discharge management unit U1 is connected to the battery cell 110, the signal conditioning unit 121, and the positive terminal of the battery 100 to form a main circuit for the battery cell. The battery management unit U2 controls the signal conditioning unit 121 to generate a second electrical signal based on a first electrical signal acquired.

[0087] Understandably, in the general market, the control unit 122 can be integrated into a single chip or divided into several sub-chips according to its functions. The sub-chips after being divided according to different functions are relatively simple, but can be used in more fields to improve the benefits of each sub-chip. This application divides the control unit 122 into a charge / discharge management unit U1 and a battery management unit U2, which can realize the scope of use of the charge / discharge management unit U1 and the battery management unit U2. Some smaller electronic products only need the charge / discharge management unit U1 or the battery management unit U2, or medium and large electronic products only need the charge / discharge management unit U1 and / or the battery management unit U2 combined with other functional management units to achieve different functions.

[0088] Optionally, the charge / discharge management unit U1 is used to control the charging and discharging of the battery 100.

[0089] In some embodiments, such as Figure 6As shown, the charge / discharge management unit U1 includes a first pin, a second pin, and a third pin; the first pin is connected to the positive terminal of the battery 100, the second pin is connected to the signal conditioning unit 121, and the third pin is connected to the positive terminal of the battery cell 110; the negative terminal of the battery cell 110 is connected to the equivalent ground terminal. The charge / discharge management unit U1 is used to connect the signal conditioning unit 121 to the main circuit of the battery cell through the second pin; it is also used to provide a voltage source for the main circuit of the battery cell through the third pin.

[0090] Optionally, the charge / discharge management unit U1 can be used to control the external device 400 to charge the battery cell 110, or to control the battery cell 110 to discharge to an external load.

[0091] Optionally, such as Figure 7 As shown, the battery 100 also includes a voltage regulation unit 130. The voltage regulation unit 130 is connected to the charge / discharge management unit U1 and the positive terminal of the battery 100, respectively. The charge / discharge management unit U1 regulates the output voltage by controlling the voltage regulation unit 130 and outputs the regulated voltage to the external device 400.

[0092] Optionally, the battery management unit U2 is also connected to the positive terminal of the battery cell 110 for power extraction.

[0093] Optionally, since the battery management unit U2 needs to obtain the first electrical signal, it can obtain the first electrical signal obtained by the charge / discharge management unit U1. This is because the charge / discharge management unit U1 is itself connected to the positive terminal of the battery 100 and obtains the first electrical signal from the positive terminal of the battery 100. Figure 8 As shown, the charge / discharge management unit U1 also includes a fourth pin, which is connected to the battery management unit U2. The charge / discharge management unit U1 transmits the first electrical signal obtained through the first pin to the battery management unit U2 through the fourth pin; that is, the fourth pin is the pin for transmitting the first electrical signal. The fourth pin can be the LED pin of the charge / discharge management unit U1, but it can also be other pins; there are no restrictions here.

[0094] Optionally, the battery management unit U2 can also directly obtain the first electrical signal through the positive terminal of the battery 100, such as... Figure 9 As shown, the battery management unit U2 is also connected to the positive terminal of the battery 100 to obtain the first electrical signal.

[0095] In some embodiments, such as Figure 10 As shown, the signal conditioning unit 121 includes a first resistor R1 and a second resistor R2. One end of the first resistor R1 is connected to one end of the second resistor R2, and the other end of the first resistor R1 is connected to the equivalent ground terminal. One end of the first resistor R1 is also connected to the charge and discharge management unit U1. The other end of the second resistor R2 is connected to the battery management unit U2.

[0096] Understandably, the battery management unit U2 can control the connection state of the first resistor R1 and the second resistor R2 to change the current magnitude in the main circuit of the battery cell, thereby generating a second electrical signal. The control method here is similar to the control method for the first resistor R1 and the second resistor R2 described above, and will not be repeated here.

[0097] In some embodiments, such as Figure 11 As shown, the battery 100 also includes a temperature acquisition unit 140, which is connected to the battery management unit U2. The battery management unit U2 acquires the temperature parameters of the battery 100 acquired by the temperature acquisition unit 140, and controls the signal adjustment unit 121 to generate a second electrical signal based on the temperature parameters.

[0098] Understandably, after the battery management unit U2 obtains the temperature parameters, it compiles the corresponding control signals based on the temperature parameters, controls the signal adjustment unit 121 to generate a second electrical signal based on the control signals, and then transmits the second electrical signal to the external device 400 to achieve communication.

[0099] Optionally, the battery management unit U2 may shut down or turn on the main circuit of the battery cell based on temperature parameters. For example, when the temperature of battery 100 reaches a first temperature threshold, the main circuit of the battery cell is shut down; when the temperature drops to a second temperature threshold, the main circuit of the battery cell is turned on.

[0100] It should be noted that many existing temperature acquisition units 140 are located on the outside of the battery 100, resulting in inaccurate temperature monitoring of the cell 110. Furthermore, if the internal temperature of the battery 100 is higher than the external temperature during use, detecting the temperature of the cell 110 from within the battery 100 allows for more immediate problem detection and rapid disconnection of the cell's main circuit. Having temperature acquisition units 140 both inside and outside the battery 100 provides an additional layer of protection, enhancing safety. If there is no external temperature acquisition unit 140 on the battery 100, then this solution offers even stronger protection and greater safety.

[0101] In some embodiments, such as Figure 11 As shown, the temperature acquisition unit 140 includes a third resistor R3 and a fourth resistor R4, where either the third resistor R3 or the fourth resistor R4 is a thermistor. One end of the third resistor R3 is connected to the low-level output pin of the battery management unit U2, and the other end of the third resistor R3 is connected to one end of the fourth resistor R4 and the sampling pin of the battery management unit U2. The other end of the fourth resistor R4 is connected to the high-level output pin of the battery management unit U2. The battery management unit U2 obtains the temperature parameter through the sampling pin.

[0102] Understandably, the third resistor R3 and the fourth resistor R4 are connected in series to divide the voltage, so that the battery management unit U2 can collect the voltage across the thermistor and calculate the corresponding temperature value, i.e., the temperature parameter, from the voltage across the thermistor.

[0103] In the above embodiment, the internal voltage of the battery 100 is obtained by simply connecting two resistors in series. This reduces the number of circuit hardware components and lowers the cost while still achieving the temperature detection function.

[0104] In some embodiments, the battery management unit U2 is also connected to the positive terminal of the battery cell 110. The battery management unit U2 acquires the voltage parameters of the battery cell 110 and controls the signal adjustment unit 121 to generate a second electrical signal based on the voltage parameters.

[0105] Understandably, the parameters of battery 100 include battery voltage, battery temperature, battery ID, etc. If the external device 400 needs to query the battery voltage, the battery management unit U2 collects the voltage parameters of the cell 110, decodes the voltage parameters into corresponding control signals, controls the signal adjustment unit 121 to generate a second electrical signal through the control signal corresponding to the voltage parameters, and then transmits the second electrical signal to the external device 400 to achieve communication.

[0106] In some embodiments, the battery 100 can send battery parameters to an external device 400. These battery parameters include battery voltage, battery temperature, battery ID, total number of current charge cycles, capacity degradation, and factory-set battery capacity information. Understandably, these battery parameters refer to the health parameters of the battery 100, indicating its current condition and lifespan.

[0107] In some embodiments, the battery 100 charges the cell 110 through the positive terminal of the cell main circuit and discharges the cell 110 to the external device 400 through the positive terminal of the cell main circuit; or the battery 100 discharges the cell 110 to the external device 400 through the positive terminal of the cell main circuit.

[0108] Understandably, battery 100 may have only a discharging function, or it may be able to both discharge and charge. During charging, external device 400 charges battery cell 110 through the positive terminal of the main battery cell circuit. During discharging, battery cell 110 discharges to external device 400 through the positive terminal of the main battery cell circuit.

[0109] In some embodiments, when an external device 400 charges the battery cell 110 through the positive terminal, the control unit 122 adjusts the charging speed mode of the battery cell 110 through the control signal adjustment unit 121.

[0110] Understandably, the control signal adjustment unit 121 can change the current in the main circuit of the battery cell. During the charging process of the battery 100, the current in the main circuit of the battery cell is the charging current of the battery cell 110. The larger the charging current, the faster the charging; the smaller the charging current, the slower the charging.

[0111] In some embodiments, since the signal conditioning unit 121 includes multiple resistors, the control unit 122 can change the current magnitude in the main circuit of the battery cell by controlling the connection state of the multiple resistors in the signal conditioning unit 121. Understandably, during the charging process of the battery cell 110 by the external device 400, the current in the main circuit of the battery cell is the charging current for the battery cell 110. When the current in the main circuit of the battery cell is large, it is a fast charging mode; when the current in the main circuit of the battery cell is small, it is a slow charging mode; when the current in the main circuit of the battery cell is between the currents in the fast charging and slow charging modes, it is a normal mode.

[0112] In some embodiments, such as Figure 12 As shown, Figure 12 One schematic diagram of the module structure of battery 100 is shown. Considering that existing batteries 100 only have charging and discharging functions but cannot communicate, a structure of battery 100 according to this application is presented. Battery 100 includes cell 110, first management module 210 and second management module 220. In this battery 100 structure, the first management module 210 can be used in fields where only charging and discharging are possible but communication is not possible, thereby maximizing the application range of the first management module 210 in the absence of the second management module 220. The first management module 210 includes a charge / discharge management unit U1, a voltage conversion unit and a first resistor R1; the second management module 220 includes a battery management unit U2, a second resistor R2 and a temperature acquisition unit 140. The first resistor R1 and the second resistor R2 constitute the aforementioned signal conditioning unit 121. Understandably, based on the first management module 210, which can be used in various related technologies, the communication function of this application can be realized simply by connecting the second management module 220 without adding any pins to the first management module 210.

[0113] It should be noted that the second management module 220 in this embodiment can be combined with any chip that can implement the function of the charge and discharge management unit U1 in this embodiment to realize the communication function of this application. Therefore, both the first management module 210 and the second management module 220 have a wide range of application scenarios.

[0114] It is understood that the battery 100 in this application can be of the following types:

[0115] According to the classification of cell 110, it includes dry cell 110, lithium cell 110 (lithium-to-dry cell 100 also belongs to lithium cell 110), etc. According to the classification of model, it includes AA type, AAA type, C type, D type, 9V battery 100 (square), etc., without limitation. In this embodiment, the battery cell 110 of battery 100 can be dry cell 110 or lithium cell 110, without limitation. However, it should be noted that the structure of battery 100 is different depending on the application scenario. For example, if it is used in electronic devices with voltage below 3V, and the voltage of cell 110 is above 3V, then a voltage regulation module needs to be integrated inside battery 100 to reduce the voltage of cell 110 to the required voltage. For example, if it is used in electronic devices with voltage of 1.5V or multiples of 1.5V (such as 3V), and the voltage of cell 110 is 1.5V, then no voltage reduction is required, and single cell 100 or multiple single cell 100 connected in series can be used to realize the above-mentioned electronic devices. For example, if used in an electronic device with a voltage higher than that of cell 110, and the voltage required by the electronic device is not an integer multiple of the voltage of cell 110, the voltage can be boosted by integrating a voltage regulation module inside the battery 100. However, it should be noted that the voltage after the battery 100 boosts the voltage of cell 110 is sufficient for the electronic device to operate normally.

[0116] It is known that different types of batteries 100 have different structures. For example, cylindrical batteries 100 generally have a positive electrode cap. Therefore, the following embodiment including a positive electrode cap is given.

[0117] In some embodiments, the battery 100 further includes a positive electrode cap connected to the positive terminal of the battery 100, and the cell 110 includes at least one of a lithium battery cell 110 or a dry cell cell 110.

[0118] In this embodiment, the battery 100 can be a cylindrical battery (e.g., AA, AAA, etc. cylindrical batteries, such as...). Figure 13 The cylindrical battery 300 can be any other type of battery, without limitation. The cell 110 can include dry cell or lithium cell, or both dry cell and lithium cell, without limitation.

[0119] This application provides a smart battery that can communicate with an external device 400 and perform the following functions:

[0120] First, achieve battery management system (BMS) communication function without adding main circuit ports to the battery cells;

[0121] Secondly, it can obtain battery health data, understand the battery's health status in real time, and filter out batteries with poor performance due to aging;

[0122] Third, it can achieve switching between fast and slow charging inside the battery;

[0123] Fourth, the battery can have an additional level of temperature protection and achieve more accurate temperature detection.

[0124] Fifth, each battery can have a unique ID, which can be used for traceability and authentication management.

[0125] Sixth, the circuit structure is simple, achieving low internal resistance and low cost in a battery structure with limited space, etc.

[0126] This application also proposes a charging and discharging system, including a charging device and any of the above-described batteries 100;

[0127] The charging device can charge the battery 100, send a first electrical signal to the battery 100 and receive a second electrical signal from the battery 100; it can also determine and display target data based on the second electrical signal.

[0128] Understandably, the charging device can communicate with the battery 100, and both the charging device and the battery 100 have a communication protocol stored before communication. The battery 100 can receive a first electrical signal sent by the charging device, and decode the first electrical signal to obtain the first communication information carried by the first electrical signal. The charging device can receive a second electrical signal sent by the battery 100, and decode the second electrical signal to obtain the second communication information carried by the second electrical signal, thereby conducting communication.

[0129] This application also proposes an electronic device that includes any of the above-described batteries 100, or includes the above-described charging and discharging system.

[0130] Understandably, the electronic device can be a household electronic device, such as a remote control or electronic clock; or a medical electronic device, such as a blood glucose meter or hearing aid; or an outdoor electronic device, such as a flashlight, headlamp, or GPS; or an industrial instrument, such as a multimeter or smoke detector; or a scientific research or military device, etc. There is no limitation on the electronic device; any device that utilizes the battery 100 or charging / discharging system mentioned in this application is considered an electronic device in this application.

[0131] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiments or examples.

[0132] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0133] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A battery, characterized in that, include: Battery cell; The control module includes a signal conditioning unit and a control unit; The control unit is configured to receive a first electrical signal from an external device via the positive terminal of the battery and control the signal conditioning unit to generate a second electrical signal based on the first electrical signal; the first electrical signal carries first communication information and the second electrical signal carries second communication information. The control unit is also configured to return the second electrical signal to the external device through the positive terminal.

2. The battery according to claim 1, characterized in that, The control unit is further configured to decode the first communication information based on the first electrical signal, and control the signal conditioning unit to generate a second electrical signal based on the first communication information; the first electrical signal includes a first pulse width, and the second electrical signal includes a second pulse width.

3. The battery according to claim 1, characterized in that, The signal conditioning unit includes a resistor sub-unit connected to the main circuit of the battery cell; the control unit is used to control the connection state of the resistor sub-unit based on the first electrical signal, so as to change the current magnitude in the main circuit of the battery cell to form the second electrical signal.

4. The battery according to claim 3, characterized in that, The resistor subunit includes a first resistor and a second resistor; one end of the first resistor is connected to one end of the second resistor, and the other end of the first resistor is connected to an equivalent ground terminal. One end of the first resistor is configured with a first voltage; the other end of the second resistor is configured with a second voltage; The control unit is used to control the connection state of the first resistor and the second resistor by controlling the second voltage, so as to control the current magnitude of the main circuit of the battery cell.

5. The battery according to claim 1, characterized in that, The control unit includes: A charge / discharge management unit is used to connect the battery cell, the signal conditioning unit, and the positive terminal of the battery to form the main circuit of the battery cell; A battery management unit is configured to control the signal conditioning unit based on the acquired first electrical signal to generate the second electrical signal.

6. The battery according to claim 5, characterized in that, The charge / discharge management unit includes a first pin, a second pin, and a third pin; the first pin is connected to the positive terminal of the battery, the second pin is connected to the signal conditioning unit, and the third pin is connected to the positive terminal of the battery cell; the negative terminal of the battery cell is connected to the equivalent ground terminal. The charge / discharge management unit is used to connect the signal conditioning unit to the main circuit of the battery cell through the second pin; it is also used to provide a voltage source for the main circuit of the battery cell through the third pin.

7. The battery according to claim 6, characterized in that, The charge / discharge management unit further includes a fourth pin, which is connected to the battery management unit. The charge / discharge management unit is further configured to transmit the first electrical signal obtained through the first pin to the battery management unit.

8. The battery according to claim 5, characterized in that, The battery management unit is also connected to the positive terminal of the battery to acquire the first electrical signal.

9. The battery according to claim 5, characterized in that, The signal conditioning unit includes a first resistor and a second resistor, one end of the first resistor is connected to one end of the second resistor, and the other end of the first resistor is connected to the equivalent ground terminal. One end of the first resistor is also connected to the charge / discharge management unit; the other end of the second resistor is connected to the battery management unit. The battery management unit is used to control the connection state of the first resistor and the second resistor to change the current magnitude of the main circuit of the battery cell, thereby generating the second electrical signal.

10. The battery according to claim 5, characterized in that, Also includes: A temperature acquisition unit, wherein the temperature acquisition unit is connected to the battery management unit; The battery management unit is used to acquire the temperature parameters of the battery acquired by the temperature acquisition unit, and control the signal conditioning unit to generate the second electrical signal based on the temperature parameters; The battery management unit is also used to turn off or on the main circuit of the battery cell according to the temperature parameter.

11. The battery according to claim 10, characterized in that, The temperature acquisition unit includes a third resistor and a fourth resistor; the third resistor or the fourth resistor is a thermistor. One end of the third resistor is connected to the low-level output pin of the battery management unit, and the other end of the third resistor is connected to one end of the fourth resistor and the sampling pin of the battery management unit, respectively. The other end of the fourth resistor is connected to the high-level output pin of the battery management unit. The battery management unit is also used to obtain the temperature parameter through the sampling pin.

12. The battery according to claim 5, characterized in that, The battery management unit is also connected to the positive terminal of the battery cell to collect the voltage parameters of the battery cell and control the signal conditioning unit based on the voltage parameters to generate the second electrical signal.

13. The battery according to any one of claims 3 to 12, characterized in that, The battery is used to charge the cell via an external device through the positive terminal of the cell's main circuit, and to discharge the cell to an external device via the positive terminal of the cell's main circuit; or; The battery is used to discharge the battery cell to an external device through the positive terminal of the main circuit of the battery cell.

14. The battery according to claim 1, characterized in that, The control unit is further configured to control the signal conditioning unit to adjust the charging speed mode of the battery cell when an external device charges the battery cell through the positive terminal.

15. The battery according to claim 1, characterized in that, It also includes a positive electrode cap, which is connected to the positive terminal of the battery, and the battery cell includes at least one of a lithium battery cell or a dry cell.

16. A charging and discharging system, characterized in that, Includes a charging device and the battery according to any one of claims 1 to 15; The charging device is used to charge the battery; The charging device is also used to send the first electrical signal to the battery and receive the second electrical signal sent by the battery; The charging device is also used to determine and display target data based on the second electrical signal.

17. An electronic device, characterized in that, It includes the battery according to any one of claims 1 to 15, or the charging and discharging system according to claim 16.

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