Battery and power system

Abstract

The utility model provides a battery and a power system, and relates to the technical field of batteries. The battery comprises a battery module, a DC / DC power supply module, a charging terminal and a discharging terminal. Wherein the DC / DC power supply module comprises an inlet wire terminal and an outlet wire terminal, the battery module is electrically connected with the inlet wire terminal through the charging terminal, and the outlet wire terminal is electrically connected with the discharging terminal. When the battery is in a charging state, the charging device outputs a first voltage to the battery module through the charging terminal. Under the condition that the battery is in a discharging state, the battery module outputs a second voltage to the DC / DC power supply module through the charging terminal, the DC / DC power supply module receives the second voltage and processes the second voltage to obtain a third voltage, and the DC / DC power supply module outputs the third voltage to the discharging terminal through the outgoing line terminal; and the third voltage is output to the electric equipment through the discharge terminal. According to the battery provided by the embodiment of the invention, the structure of the battery can be simplified, the volume of the battery is reduced, and the manufacturing cost of the battery is reduced.

Description

Technical Field

[0001] This application relates to the field of battery technology, and more particularly to a battery and power system. Background Technology

[0002] A battery is a device that converts chemical energy into electrical energy, providing power to numerous electrical devices and enabling them to operate. Batteries can be combined with different electrical devices and other structures to form various power systems. Existing batteries are widely used in the power fields of automobiles, construction machinery, and ships, and can also be used for home energy storage, industrial and commercial energy storage, and communication base stations.

[0003] The output voltage of a battery is usually related to the number of cells connected in series. However, a single cell can only output a relatively low voltage. To ensure that the output voltage of the battery meets the needs of the power system, multiple cells are typically connected in series. However, such batteries are generally large and complex in structure. Utility Model Content

[0004] This application provides a battery and power system that can simplify the battery structure, reduce the battery size, and lower the battery manufacturing cost.

[0005] In a first aspect, this application provides a battery, which includes a battery module, a DC / DC power module, a charging terminal, and a discharging terminal. The DC / DC power module includes an input terminal and an output terminal. The battery module is electrically connected to the input terminal via the charging terminal, and the output terminal is electrically connected to the discharging terminal.

[0006] When the battery is charging, the charging device outputs the first voltage to the battery module through the charging terminal.

[0007] When the battery is in a discharging state, the battery module outputs a second voltage to the DC / DC power module through the charging terminal. The DC / DC power module receives the second voltage and processes it to obtain a third voltage. The DC / DC power module outputs the third voltage to the discharging terminal through the output terminal. The third voltage is output to the electrical device through the discharging terminal. The voltage value of the second voltage is the output voltage value of the battery module, and the voltage value of the third voltage is the output voltage value of the battery.

[0008] In this application example, the charging terminal can provide a port for the charging device, enabling the charging device to be electrically connected to the battery module and perform charging operations on the battery module.

[0009] The battery module can provide power to the electrical device, and the discharge terminal can provide a port for the electrical device, enabling the electrical device to connect to the battery and complete the battery discharge operation to the electrical device.

[0010] The DC / DC power module connects to the battery module, receives the second voltage output from the battery module, processes it to obtain a third voltage that meets the requirements of the electrical equipment. Since the output terminal of the battery module is electrically connected to the discharge terminal, the current corresponding to the third voltage can reach the discharge terminal through the output terminal, and then reach the electrical equipment through the discharge terminal, allowing the battery to charge the electrical equipment.

[0011] Compared to existing technologies that increase the number of cells connected in series within a battery module to ensure the battery's output voltage meets the requirements of the device, this application example achieves the same result by electrically connecting a DC / DC power module to the battery module. This reduces the number of cells used, thereby reducing the size of the battery module and facilitating battery miniaturization. It also allows the charging needs of the device to be met while providing less installation space for the battery.

[0012] Because the number of cells in a battery module is relatively small, the use of structural components such as top cover, aluminum shell, protective film, buffer sheet, and busbar can be saved, thereby reducing the manufacturing cost of the battery.

[0013] Furthermore, since the charging terminal and the discharging terminal are independent of each other in this application example, during the charging operation of the battery to the device, the output voltage of the battery to the device is not limited by the charging voltage of the battery, that is, the third voltage is not limited by the first voltage, which enables the battery to provide a larger current to the device, thereby improving the charging efficiency of the battery to the device.

[0014] When the battery is charging, the charging voltage provided by the charging device can directly reach the battery module from the charging terminal, which can improve the charging efficiency of the battery.

[0015] In some possible implementations, the DC / DC power module includes a controller that can adjust the resistance value of the DC / DC power module so that the DC / DC power module adjusts the received second voltage to a third voltage and outputs the third voltage to the discharge terminal through the output terminal.

[0016] In this application example, the controller can adjust the resistance value of the DC / DC power module, so that the DC / DC power module adjusts the received second voltage to a third voltage, and the voltage value of the third voltage can change with the change of the resistance value of the DC / DC power module. In this way, the third voltage output by the battery in this application example can meet the needs of different electrical devices, expand the application range of the battery, and improve the applicability of the battery.

[0017] In some possible implementations, the battery also includes a housing, in which the battery module, DC / DC power module, charging terminals, and discharging terminals are all installed, with some charging terminals and some discharging terminals exposed outside the housing.

[0018] In this example, the battery module, DC / DC power module, charging terminal, and discharging terminal are all installed inside the housing. This reduces the need for electrical connections between different components during battery use, thus lowering the cost of battery operation. Furthermore, since the battery module and DC / DC power module are all installed inside the housing, the possibility of current escaping from the battery to the outside is reduced, ensuring battery safety.

[0019] By exposing some charging terminals to the outside of the housing, the charging device can easily connect to the battery via the terminals to complete the charging operation.

[0020] By exposing part of the discharge terminal to the outside of the casing, it is easier for the electrical device to connect to the battery, and for the battery to charge the device.

[0021] In some possible implementations, the battery module includes a first terminal and a second terminal. The charging terminal includes a first charging terminal and a second charging terminal. The input terminal includes a first input terminal and a second input terminal, and the output terminal includes a first output terminal and a second output terminal. The first input terminal and the first output terminal are electrically connected, and the second input terminal and the second output terminal are electrically connected. The discharging terminal includes a first discharging terminal and a second discharging terminal.

[0022] The first terminal is electrically connected to the first input terminal via the first charging terminal, and the first output terminal is electrically connected to the first discharge terminal. The second terminal is electrically connected to the second input terminal via the second charging terminal, and the second output terminal is electrically connected to the second discharge terminal.

[0023] In this example, the first terminal is electrically connected to the first charging terminal, and the second charging terminal is electrically connected to the second terminal. The charging device can be electrically connected to both the first and second charging terminals to enable the charging device to charge the battery.

[0024] The first terminal is electrically connected to the first input terminal via the first charging terminal, and the first output terminal is electrically connected to the first discharge terminal. The second terminal is electrically connected to the second input terminal via the second charging terminal, and the second output terminal is electrically connected to the second discharge terminal. Both the first and second discharge terminals are connected to the electrical equipment, which allows the battery to be in a discharging state, enabling the battery to provide power to the electrical equipment.

[0025] In some possible implementations, the battery also includes a battery management module, which includes a third terminal and a fourth terminal. The third terminal is electrically connected to the second terminal, and the fourth terminal is electrically connected to the second charging terminal.

[0026] In this example, the battery management module can measure the voltage of the battery module. When the battery is charging, the battery management module can interrupt the charging device from charging the battery module when it detects that the battery module is fully charged, thereby reducing the possibility of overcharging, ensuring the safety of the battery module during the charging process, and extending the service life of the battery module.

[0027] The battery management module can coordinate the output voltage of multiple cells, making the output voltage of multiple cells more balanced, thereby ensuring the performance of the battery module.

[0028] In some possible implementations, the battery also includes a switch structure, which includes a fifth terminal and a sixth terminal, the fifth terminal being electrically connected to the first terminal and the sixth terminal being electrically connected to the first charging terminal.

[0029] In this example, since the fifth and sixth terminals are part of the switch structure and the first terminal is part of the battery module, electrically connecting the fifth terminal to the first terminal and the sixth terminal to the first charging terminal allows the switch structure to be electrically connected between the battery module and the charging terminal. When the battery is fully charged, the switch structure can be in the open state, cutting off the electrical connection between the battery module and the charging device, thus reducing the possibility of overcharging the battery module.

[0030] When the battery is not in use, the switch structure is electrically connected between the battery module and the charging terminal, and the charging terminal is electrically connected between the charging terminal and the DC / DC power module. Therefore, when the switch structure is in the open state, the electrical connection between the battery module and the DC / DC power module can be cut off, reducing the power loss of the battery module and extending the service life of the battery module.

[0031] When abnormal conditions such as short circuits or overloads occur during battery use, the switching structure can also be in an open state, reducing the possibility of the fault escalating further and thus reducing the possibility of battery module damage.

[0032] In some possible implementations, the battery also includes functional terminals, including a seventh terminal and an eighth terminal, wherein the seventh terminal is electrically connected to a first charging terminal and the eighth terminal is electrically connected to a second charging terminal.

[0033] By setting functional terminals, this battery can provide power to different electrical devices and charge them, thus expanding its applicability and improving the user experience.

[0034] In some possible implementations, the battery also includes a power indicator, which includes a ninth terminal and a tenth terminal, the ninth terminal being electrically connected to a first charging terminal and the tenth terminal being electrically connected to a second charging terminal.

[0035] In this example, the ninth and tenth terminals are part of the power display. By setting the ninth terminal to be electrically connected to the first charging terminal and the tenth terminal to be electrically connected to the second charging terminal, the power display can be electrically connected to the battery module. The power display can show the remaining power of the battery module, so that the operator can know the remaining power of the battery module from the power display and charge the battery in a timely manner.

[0036] In some possible implementations, the battery also includes a voltage display, which includes an eleventh terminal and a twelfth terminal, the eleventh terminal being electrically connected to a first outgoing terminal and the twelfth terminal being electrically connected to a second outgoing terminal.

[0037] In this application example, the eleventh and twelfth terminals are part of the voltage display. By setting the eleventh terminal to be electrically connected to the first output terminal and the twelfth terminal to be electrically connected to the second output terminal, the voltage display can be electrically connected to the DC / DC power module. The voltage display can show the output voltage of the DC / DC power module, making it easy for operators to know the output voltage of the DC / DC power module from the voltage display.

[0038] Secondly, this application provides an electrical system, which includes an electrical device and a battery provided in the first aspect and any possible implementation thereof. The battery is electrically connected to the electrical device and is capable of providing electrical energy to the electrical device.

[0039] The beneficial effects of the battery provided in the second aspect and the various possible designs of the second aspect can be found in the first aspect and the various possible implementations of the first aspect, and will not be repeated here. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the structure of a power system provided as an example of this application.

[0041] Figure 2 This is a schematic diagram of the internal circuit connection of a battery, provided as an example of this application.

[0042] Figure 3This is a schematic diagram of the internal circuit connection of a battery, provided as an example of this application.

[0043] Figure 4 This is a schematic diagram of the internal circuit connection of a battery, provided as an example of this application.

[0044] Figure 5 This is a circuit connection diagram of a DC / DC power supply module and a voltage display provided as an example of this application.

[0045] Explanation of reference numerals in the attached figures:

[0046] 100. AC power supply; 200. Charging equipment; 300. Battery; 310. Battery module; 320. Charging terminal; 321. First charging terminal; 322. Second charging terminal; 330. DC / DC power module; 331. First incoming terminal; 332. Second incoming terminal; 333. First outgoing terminal; 334. Second outgoing terminal; 340. Discharge terminal; 341. First discharge terminal; 342. Second discharge terminal; 350. Battery management module; 360. Switch structure; 370. Functional terminal; 371. Seventh terminal; 372. Eighth terminal; 380. Power indicator; 381. Ninth terminal; 382. Tenth terminal; 390. Voltage indicator; 391. Eleventh terminal; 392. Twelfth terminal; 400. Electrical equipment. Detailed Implementation

[0047] To make the purpose, technical solutions, and advantages of the examples in this application clearer, the technical solutions in the examples of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described examples are only a part of the examples in this application, not all of them. Based on the examples in this application, all other examples obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0048] 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 pertains; the terms used herein in the description of the application are for the purpose of describing particular examples only and are not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the description, claims and drawings of this application are intended to cover non-exclusive inclusion.

[0049] In this document, the term "example" means that a particular feature, structure, or characteristic described in connection with the example can be included in at least one example of this application. The appearance of the phrase "example" in various places in the specification does not necessarily refer to the same example, nor is it a separate or alternative example mutually exclusive with other examples. It will be explicitly and implicitly understood by those skilled in the art that the examples described herein can be combined with other examples.

[0050] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists, A and B exist simultaneously, or B exists. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0051] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the battery in this application.

[0052] Furthermore, the terms "first," "second," etc., in the specification and claims of this application or in the aforementioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0053] In the description of this application, unless otherwise stated, "multiple" means two or more (including two), and similarly, "multiple groups" means two or more (including two groups).

[0054] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, "connection" or "joining" in mechanical structures can refer to a physical connection, such as a fixed connection, for example, a connection fixed by a partition, such as a connection fixed by screws, bolts, or other partitions; a physical connection can also be a detachable connection, such as a snap-fit ​​or interlocking connection; a physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0055] Based on the above, this application provides an example of a battery and a power system.

[0056] To enable those skilled in the art to better understand the present application, the battery and power system provided in the example of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0057] For example, this application provides an example of a power system, Figure 1 A schematic diagram of a power system provided as an example in this application is shown below. Figure 1 The power system includes electrical equipment 400 and battery 300. Battery 300 is electrically connected to electrical equipment 400 and can provide power to electrical equipment 400.

[0058] Electrical equipment 400 uses battery 300 as its power source. Electrical equipment 400 may be, but is not limited to, electric toys, power tools, electric vehicles, electric cars, ships, and spacecraft.

[0059] Battery 300 may include multiple cells. These cells can be connected in series, parallel, or a combination thereof. A combination thereof means that some cells are connected in series and others in parallel. The cells can also be directly connected in series, parallel, or a combination thereof. Alternatively, battery 300 can consist of multiple cells first connected in series, parallel, or a combination thereof to form battery module 310, and then multiple battery modules 310 can be connected in series, parallel, or a combination thereof to form a whole.

[0060] The battery 300 may also include other structures. For example, the battery 300 may also include a busbar and a charging device 200. The busbar is used to realize electrical connection between multiple cells. The charging device 200 can provide power to the battery 300. Each cell can be a secondary battery or a primary battery.

[0061] Battery 300 can be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, or other types of batteries; this application example does not impose specific limitations on this.

[0062] Battery 300 can be in a discharged state or a charged state. Please refer to the relevant description below for the specific structure of battery 300.

[0063] When the battery 300 is in a discharged state, the battery 300 can be electrically connected to the electrical device 400 and provide power to the electrical device 400, enabling the electrical device 400 to be in a working state.

[0064] When battery 300 is charging, charging device 200 can be electrically connected to battery 300 to charge it. Alternatively, charging device 200 can also be used in conjunction with other structures to charge battery 300; for example, charging device 200 can be used in conjunction with AC power supply 100 to charge battery 300. Charging device 200 can detect the status of battery 300 and adjust charging parameters, specifically adjusting parameters such as charging voltage, charging current, and charging time, to improve charging efficiency and ensure the lifespan of battery 300.

[0065] The AC power source 100 can obtain electrical energy from the AC power source to charge the battery 300. The charging device 200 can convert the AC current into DC current to provide DC current to the battery 300 for charging.

[0066] Next, the battery 300 in the power system will be described in detail.

[0067] For example, this application provides a battery 300. Figure 2 Please refer to the schematic diagram of the internal circuit connection of a battery provided as an example in this application. Figure 2 The battery 300 includes a battery module 310, a DC / DC power module 330, a charging terminal 320, and a discharging terminal 340. The DC / DC power module 330 includes an input terminal and an output terminal. The battery module 310 is electrically connected to the input terminal via the charging terminal 320, and the output terminal is electrically connected to the discharging terminal 340.

[0068] When the battery 300 is in a charging state, the charging device 200 outputs a first voltage to the battery module 310 through the charging terminal 320.

[0069] When the battery 300 is in a discharging state, the battery module 310 outputs a second voltage to the DC / DC power module 330 through the charging terminal 320. The DC / DC power module 330 receives the second voltage and processes it to obtain a third voltage. The DC / DC power module 330 outputs the third voltage to the discharging terminal 340 through the output terminal. The third voltage is output to the electrical device 400 through the discharging terminal 340. The voltage value of the second voltage is the output voltage value of the battery module 310, and the voltage value of the third voltage is the output voltage value of the battery 300.

[0070] The battery module 310 may include multiple cells connected in series. For example, the number of cells connected in series may be 2, 3, 4, etc. The multiple cells in the battery module 310 may be connected in series only, or they may be connected in a mixed manner. For the specific definition of mixed connection, please refer to the relevant description above. This application example does not limit this, but only describes the battery module 310 as including multiple cells connected in series.

[0071] The resistor value of the DC / DC power module 330 can be adjusted. For details on adjusting the resistor value of the DC / DC power module 330, please refer to the relevant description below.

[0072] By adjusting the resistance value of the DC / DC power module 330, the output voltage value can be made unequal to the input voltage value. The output voltage value can be greater than the input voltage value, meaning the third voltage value can be greater than the second voltage value. Conversely, the output voltage value can also be less than the input voltage value, meaning the third voltage value can be less than the second voltage value. This application example does not specifically limit this; the example only describes the case where the output voltage value is greater than the input voltage value.

[0073] The DC / DC power module 330 may include an input terminal and an output terminal. The battery module 310 can be electrically connected to the input terminal of the DC / DC power module 330 via the charging terminal 320. The output terminal of the DC / DC power module 330 can be electrically connected to the discharging terminal 340.

[0074] When the battery 300 is in a charging state, the charging device 200 can be electrically connected to the charging terminal 320. Since the charging terminal 320 is electrically connected to the battery module 310, the charging device 200 can connect to the battery module 310 through the charging terminal 320 and output a first voltage to the battery module 310. The battery module 310 can receive the first voltage and charge itself. The charging device 200 can be a charger, or it can include a charger and an AC power source 100. The charging device 200 can also include other structures.

[0075] The first voltage refers to the voltage output by the charging device 200 to the battery module 310. The voltage value of the first voltage should correspond to the rated charging voltage of the battery module 310.

[0076] When the battery 300 is in a discharging state, the battery module 310 can be electrically connected to the input terminal via the charging terminal 320 and output a second voltage to the input terminal of the DC / DC power module 330. The input terminal of the DC / DC power module 330 receives the second voltage, and based on the adjustable resistance value of the corresponding DC / DC power module 330, processes the second voltage to obtain a third voltage, and outputs the third voltage through the output terminal to the electrical device 400 electrically connected to the discharging terminal 340, so that the battery 300 can provide power to the electrical device 400.

[0077] When the battery 300 is in a discharging state, the charging terminal 320 is used to electrically connect the battery module 310 and the DC / DC power module 330.

[0078] The second voltage value is the output voltage value of the battery module 310. Taking the battery module 310 as an example, which includes four lithium batteries 300 connected in series, the output voltage of each cell can be 3.2V, and the output voltage value of the battery module 310 can be 12.8V.

[0079] The third voltage is the voltage adjusted by the DC / DC power module 330 from the second voltage. For example, the third voltage can be greater than or equal to 12.8V and less than or equal to 90V. This application example only provides an illustrative description of the second and third voltage values. Of course, the second and third voltages can also correspond to other voltage values. This application example does not impose specific limitations on this, as long as the voltage value corresponding to the third voltage can meet the usage requirements of the electrical equipment 400.

[0080] For a description of electrical equipment 400, please refer to the relevant description above. This application example only describes electrical equipment 400 as an electric vehicle.

[0081] In this application example, the charging terminal 320 can provide a port for the charging device 200, enabling the charging device 200 to be electrically connected to the battery module 310 and to perform a charging operation on the battery module 310.

[0082] The battery module 310 can provide power to the electrical device 400, and the discharge terminal 340 can provide a port for the electrical device 400, so that the electrical device 400 can be electrically connected to the battery 300 to complete the discharge operation of the battery 300 to the electrical device 400.

[0083] The DC / DC power module 330 is connected to the battery module 310. It can receive the second voltage output by the battery module 310 and process the second voltage to obtain a third voltage that meets the usage requirements of the electrical device 400. Since the output terminal of the battery module 310 is electrically connected to the discharge terminal 340, the current corresponding to the third voltage can reach the discharge terminal 340 through the output terminal, and then reach the electrical device 400 through the discharge terminal 340, so that the battery 300 can charge the electrical device 400.

[0084] Compared to existing technologies, where increasing the number of cells connected in series within the battery module 310 allows the battery 300's output voltage to meet the requirements of the device 400, this application example achieves the same result by electrically connecting the battery module 310 to the DC / DC power module 330. This reduces the number of cells used, thereby reducing the size of the battery module 310 and facilitating the miniaturization of the battery 300. Furthermore, it allows the device 400 to meet its charging needs while providing less installation space for the battery 300.

[0085] Because the number of cells included in the battery module 310 is relatively small, the use of structural components such as top cover, aluminum shell, protective film, buffer sheet, and busbar can be saved, thereby reducing the manufacturing cost of battery 300.

[0086] Furthermore, since the charging terminal 320 and the discharging terminal 340 are independent of each other in this application example, during the charging operation of the battery 300 to the device 400, the output voltage of the battery 300 to the device 400 is not limited by the charging voltage of the battery 300, that is, the third voltage is not limited by the first voltage, which allows the battery 300 to provide a larger current to the device 400, thereby improving the charging efficiency of the battery 300 to the device 400.

[0087] When the battery 300 is in a charging state, the charging voltage provided by the charging device 200 can directly reach the battery module 310 from the charging terminal 320, which can improve the charging efficiency of the battery 300.

[0088] Based on the battery 300 provided in the above example, the DC / DC power module 330 may include a controller that can adjust the resistance value of the DC / DC power module 330 so that the DC / DC power module 330 adjusts the received second voltage to a third voltage and outputs the third voltage to the discharge terminal 340 through the output terminal.

[0089] The controller can be a knob, button, or other structure that can adjust the resistance value corresponding to the DC / DC power module 330.

[0090] The controller can directly adjust the resistance value of the DC / DC power module 330, or it can adjust the resistance value of the DC / DC power module 330 through a connecting rod or other structure. This application example does not specifically limit this.

[0091] In this application example, the controller can adjust the resistance value of the DC / DC power module 330, so that the DC / DC power module 330 adjusts the received second voltage to a third voltage, and the voltage value of the third voltage can change with the change of the resistance value of the DC / DC power module 330. In this way, the third voltage output by the battery 300 in this application example can meet the needs of different electrical devices 400, expand the application range of the battery 300, and improve the applicability of the battery 300.

[0092] Based on the battery 300 provided in the above example, the battery 300 may also include a housing, in which the battery module 310, DC / DC power module 330, charging terminal 320 and discharging terminal 340 are all installed, and some of the charging terminal 320 and some of the discharging terminal 340 are exposed outside the housing.

[0093] The casing can be made of materials such as aluminum alloy, steel, or carbon fiber composite materials, as long as the insulation performance of the battery 300 is guaranteed and the battery 300 can be used safely and reliably.

[0094] The housing may have a first mounting hole and a second mounting hole.

[0095] Part of the charging terminal 320 can extend from the first mounting hole to the outside of the housing, facilitating electrical connection between the charging device 200 and the charging terminal 320. The electrical connections between the charging terminal 320 and the battery module 310, as well as between the charging terminal 320 and the DC / DC power module 330, are all located inside the housing to ensure the safety of the battery 300 during use.

[0096] Partial discharge terminal 340 can extend from the second mounting hole to the outside of the housing, facilitating electrical connection between the electrical device 400 and the discharge terminal 340. The electrical connection between the discharge terminal 340 and the DC / DC power module 330 is located inside the housing to ensure the safety of the battery 300 during use.

[0097] In this example, the battery module 310, DC / DC power module 330, charging terminal 320, and discharging terminal 340 are all installed inside the housing. This reduces the need for electrical connections between different components during battery use, thus lowering the cost of using the battery 300. Furthermore, since the battery module 310 and DC / DC power module 330 are all installed inside the housing, the possibility of current escaping from the battery 300 to the outside of the housing is reduced, ensuring the safety of the battery 300 during use.

[0098] By exposing part of the charging terminal 320 to the outside of the housing, the charging device 200 can easily connect to the battery 300 through the terminal to complete the charging operation of the battery 300.

[0099] By exposing a partial discharge terminal 340 to the outside of the housing, it is easy for the electrical device 400 to be electrically connected to the battery 300, and for the battery 300 to charge the electrical device 400.

[0100] Based on the battery 300 provided in the example above, please refer to... Figure 2The battery module 310 may include a first terminal and a second terminal. The charging terminal 320 may include a first charging terminal 321 and a second charging terminal 322. The input terminal may include a first input terminal 331 and a second input terminal 332, and the output terminal may include a first output terminal 333 and a second output terminal 334. The first input terminal 331 and the first output terminal 333 are electrically connected, and the second input terminal 332 and the second output terminal 334 are electrically connected. The discharging terminal 340 may include a first discharging terminal 341 and a second discharging terminal 342.

[0101] Specifically, the first terminal is electrically connected to the first input terminal 331 via the first charging terminal 321, and the first output terminal 333 is electrically connected to the first discharge terminal 341. The second terminal is electrically connected to the second input terminal 332 via the second charging terminal 322, and the second output terminal 334 is electrically connected to the second discharge terminal 342.

[0102] When the first terminal is the positive terminal of the battery module 310 and the second terminal is the negative terminal of the battery module 310, the first terminal is electrically connected to the first charging terminal 321 and the second terminal is electrically connected to the second charging terminal 322.

[0103] When battery 300 is charging, the first charging terminal 321 can be electrically connected to the positive terminal of charging device 200, and the second charging terminal 322 can be electrically connected to the negative terminal of charging device 200. At this time, current can flow from the positive terminal of charging device 200 to the first charging terminal 321 of battery 300, then through the inside of battery module 310 and out of battery module 310 via the second terminal, returning to the negative terminal of charging device 200. During the flow of current from the first terminal to the second terminal, a chemical reaction occurs inside battery module 310, converting electrical energy into chemical energy and storing it inside battery module 310, thus completing the charging operation of battery 300.

[0104] When the battery 300 is discharging, the first charging terminal 321 can be electrically connected to the first input terminal 331, which can be the positive input terminal of the DC / DC power module 330. The first output terminal 333 can be the positive output terminal of the DC / DC power module 330. The first output terminal 333 can be electrically connected to the first discharging terminal 341, which can be electrically connected to the positive terminal of the electrical device 400.

[0105] The second charging terminal 322 can be electrically connected to the second input terminal 332, which can be the negative input terminal of the DC / DC power module 330. The second output terminal 334 can be the negative output terminal of the DC / DC power module 330. The second output terminal 334 can be electrically connected to the second discharge terminal 342, which can be electrically connected to the negative terminal of the electrical device 400.

[0106] Current can flow from the battery module 310 through the first terminal, and reach the first input terminal 331 of the DC / DC power module 330 via the first charging terminal 321. After processing by the DC / DC power module 330, it flows out from the first output terminal 333 to the first discharge terminal 341. Since the first discharge terminal 341 is connected to the positive terminal of the device 400, the current can reach the positive terminal of the device 400 via the first discharge terminal 341, and then flow out from the negative terminal of the device 400. The current flows sequentially through the second discharge terminal 342, the second output terminal 334, the second input terminal 332, and the second charging terminal 322 to reach the second terminal. When the battery 300 provides power to the device 400, the battery 300 is in a discharging state, and the chemical energy inside the battery module 310 is converted into electrical energy, which flows to the device 400, completing the charging operation of the device 400 by the battery 300.

[0107] The first terminal can also be the negative terminal of the battery module 310, and the second terminal can be the positive terminal. The positive and negative terminals of the other terminals can be adjusted accordingly. This application does not impose specific restrictions on this example. It only describes the example where the first terminal is the positive terminal of the battery module 310 and the second terminal is the negative terminal of the battery module 310.

[0108] In this example, the first terminal is electrically connected to the first charging terminal 321, and the second charging terminal 322 is electrically connected to the second terminal. The charging device 200 can be electrically connected to both the first charging terminal 321 and the second charging terminal 322 to enable the charging device 200 to charge the battery 300.

[0109] The first terminal is electrically connected to the first input terminal 331 via the first charging terminal 321, and the first output terminal 333 is electrically connected to the first discharge terminal 341. The second terminal is electrically connected to the second input terminal 332 via the second charging terminal 322, and the second output terminal 334 is electrically connected to the second discharge terminal 342. Both the first discharge terminal 341 and the second discharge terminal 342 are connected to the electrical device 400, which allows the battery 300 to be in a discharging state, so that the battery 300 can provide power to the electrical device 400.

[0110] Based on the battery 300 provided in the example above. Figure 3 Please refer to the schematic diagram of the internal circuit connection of a battery provided as an example in this application. Figure 3 The battery 300 may also include a battery management module 350, which includes a third terminal and a fourth terminal. The third terminal is electrically connected to the second terminal, and the fourth terminal is electrically connected to the second charging terminal 322.

[0111] The electrical connection between the battery management module 350 and the battery cell is the same as that between the battery management module 350 and the battery cell in the prior art, and will not be further described in this application example.

[0112] When the battery 300 is in a charging state, current can flow from the second terminal through the third and fourth terminals to the second charging terminal 322.

[0113] In this example, the battery management module 350 can measure the voltage of the battery module 310. When the battery 300 is charging, the battery management module 350 can interrupt the charging device 200 from charging the battery module 310 when it detects that the battery module 310 is fully charged, thereby reducing the possibility of overcharging the battery module 310, ensuring the safety of the battery module 310 during the charging process, and extending the service life of the battery module 310.

[0114] The battery management module 350 can coordinate the output voltage of multiple cells, making the output voltage of multiple cells more balanced, thereby ensuring the performance of the battery module 310.

[0115] Based on the battery 300 provided in the example above, please refer to... Figure 3 The battery 300 may also include a switch structure 360, which may include a fifth terminal and a sixth terminal. The fifth terminal is electrically connected to the first terminal, and the sixth terminal is electrically connected to the first charging terminal 321.

[0116] The switch structure 360 ​​can be a circuit breaker or other structure that can protect the battery 300 and control the on / off state of the circuit.

[0117] In this example, since the fifth and sixth terminals are part of the switch structure 360, and the first terminal is part of the battery module 310, electrically connecting the fifth terminal to the first terminal and the sixth terminal to the first charging terminal 321 allows the switch structure 360 ​​to be electrically connected between the battery module 310 and the charging terminal 320. When the battery 300 is fully charged, the switch structure 360 ​​can be in an open state, disconnecting the battery module 310 from the charging device 200 and reducing the possibility of overcharging the battery module 310.

[0118] When the battery 300 is not in use, since the switch structure 360 ​​is electrically connected between the battery module 310 and the charging terminal 320, and since the charging terminal 320 is electrically connected between the charging terminal 320 and the DC / DC power module 330, the electrical connection between the battery module 310 and the DC / DC power module 330 can be cut off when the switch structure 360 ​​is in the open state, thereby reducing the power loss of the battery module 310 and extending the service life of the battery module 310.

[0119] When abnormal situations such as short circuits or overloads occur during the use of battery 300, the switch structure 360 ​​can also be in the open state, reducing the possibility of the fault further expanding and thus reducing the possibility of damage to battery module 310.

[0120] Based on the battery 300 provided in the example above. Figure 4 Please refer to the schematic diagram of the internal circuit connection of a battery provided as an example in this application. Figure 4 The battery 300 may also include a functional terminal 370, which includes a seventh terminal 371 and an eighth terminal 372. The seventh terminal 371 is electrically connected to the first charging terminal 321, and the eighth terminal 372 is electrically connected to the second charging terminal 322.

[0121] There may be only one function terminal 370, or there may be multiple function terminals 370, and multiple function terminals 370 may be connected in parallel.

[0122] Function terminal 370 can be a Universal Serial Bus (USB) interface or other interfaces. When function terminal 370 is a USB interface, it can be used to provide power to mobile phones or other electrical devices.

[0123] By setting the functional terminal 370, the battery 300 can provide power to different electrical devices and charge different electrical devices, thereby expanding and improving the applicability of the battery 300 and enhancing the user experience.

[0124] Based on the battery 300 provided in the example above, please refer to... Figure 4 The battery 300 may also include a power display 380, which includes a ninth terminal 381 and a tenth terminal 382. The ninth terminal 381 is electrically connected to the first charging terminal 321, and the tenth terminal 382 is electrically connected to the second charging terminal 322.

[0125] The ninth terminal 381 can be directly electrically connected to the first charging terminal 321. Other terminals can also be connected between the ninth terminal 381 and the first charging terminal 321. For example, a functional terminal 370 can also be connected between the ninth terminal 381 and the first charging terminal 321. This application example does not impose specific limitations on this.

[0126] The power display 380 can display the remaining power of the battery module 310 through at least one of the following: numbers, patterns, colors, and text. This application example does not impose specific limitations on this.

[0127] In this application example, the ninth terminal 381 and the tenth terminal 382 are part of the power display 380. By setting the ninth terminal 381 to be electrically connected to the first charging terminal 321 and the tenth terminal 382 to be electrically connected to the second charging terminal 322, the power display 380 can be electrically connected to the battery module 310. The power display 380 can display the remaining power of the battery module 310, so that the operator can know the remaining power of the battery module 310 from the power display 380, and the operator can charge the battery 300 in a timely manner.

[0128] Based on the battery 300 provided in the example above. Figure 5 A circuit connection diagram of a DC / DC power supply module and a voltage display is provided as an example of this application. Please refer to... Figure 4 and Figure 5 The battery 300 may also include a voltage display 390, which includes an eleventh terminal 391 and a twelfth terminal 392. The eleventh terminal 391 is electrically connected to the first outgoing terminal 333, and the twelfth terminal 392 is electrically connected to the second outgoing terminal 334.

[0129] The eleventh terminal 391 can be directly electrically connected to the first outgoing terminal 333. Other components can also be electrically connected between the eleventh terminal 391 and the first outgoing terminal 333. The twelfth terminal 392 can be directly electrically connected to the second outgoing terminal 334. Other components can also be electrically connected between the twelfth terminal 392 and the second outgoing terminal 334. This application example does not impose specific limitations in this regard.

[0130] The voltage display 390 can display the output voltage of the DC / DC power module 330 through at least one of the following: numbers, patterns, colors, and text. This application example does not impose specific limitations on this.

[0131] In this application example, the eleventh terminal 391 and the twelfth terminal 392 are part of the voltage display 390. By setting the eleventh terminal 391 to be electrically connected to the first output terminal 333 and the twelfth terminal 392 to be electrically connected to the second output terminal 334, the voltage display 390 can be electrically connected to the DC / DC power module 330. The voltage display 390 can display the output voltage of the DC / DC power module 330, making it easy for operators to know the output voltage of the DC / DC power module 330 from the voltage display 390.

[0132] Finally, it should be noted that the above embodiments are merely specific implementations of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A battery, characterized in that, It includes a battery module, a DC / DC power module, charging terminals, and discharging terminals, wherein the DC / DC power module includes input terminals and output terminals. The battery module is electrically connected to the input terminal via the charging terminal, and the output terminal is electrically connected to the discharge terminal. When the battery is in a charging state, the charging device outputs a first voltage to the battery module through the charging terminal; When the battery is in a discharging state, the battery module outputs a second voltage to the DC / DC power module through the charging terminal. The DC / DC power module receives the second voltage and processes it to obtain a third voltage. The DC / DC power module outputs the third voltage to the discharging terminal through the output terminal. The third voltage is output to the electrical device through the discharging terminal. The voltage value of the second voltage is the output voltage value of the battery module, and the voltage value of the third voltage is the output voltage value of the battery.

2. The battery according to claim 1, characterized in that, The DC / DC power module includes a controller that can adjust the resistance value of the DC / DC power module so that the DC / DC power module adjusts the received second voltage to the third voltage and outputs the third voltage to the discharge terminal through the output terminal.

3. The battery according to claim 1 or 2, characterized in that, Also includes: The battery module, the DC / DC power module, the charging terminal and the discharging terminal are all installed inside the housing, and some of the charging terminal and some of the discharging terminal are exposed outside the housing.

4. The battery according to claim 1, characterized in that, The battery module includes a first terminal and a second terminal; The charging terminal includes a first charging terminal and a second charging terminal; The incoming terminal includes a first incoming terminal and a second incoming terminal, and the outgoing terminal includes a first outgoing terminal and a second outgoing terminal. The first incoming terminal and the first outgoing terminal are electrically connected, and the second incoming terminal and the second outgoing terminal are electrically connected. The discharge terminal includes a first discharge terminal and a second discharge terminal; Wherein, the first terminal is electrically connected to the first input terminal via the first charging terminal, and the first output terminal is electrically connected to the first discharge terminal; The second terminal is electrically connected to the second input terminal via the second charging terminal, and the second output terminal is electrically connected to the second discharge terminal.

5. The battery according to claim 4, characterized in that, It also includes a battery management module, which includes a third terminal and a fourth terminal. The third terminal is electrically connected to the second terminal, and the fourth terminal is electrically connected to the second charging terminal.

6. The battery according to claim 4, characterized in that, It also includes a switch structure, which includes a fifth terminal and a sixth terminal. The fifth terminal is electrically connected to the first terminal, and the sixth terminal is electrically connected to the first charging terminal.

7. The battery according to any one of claims 4-6, characterized in that, It also includes functional terminals, which include a seventh terminal and an eighth terminal. The seventh terminal is electrically connected to the first charging terminal, and the eighth terminal is electrically connected to the second charging terminal.

8. The battery according to any one of claims 4-6, characterized in that, It also includes a power indicator, which has a ninth terminal and a tenth terminal. The ninth terminal is electrically connected to the first charging terminal, and the tenth terminal is electrically connected to the second charging terminal.

9. The battery according to any one of claims 4-6, characterized in that, It also includes a voltage display, which has an eleventh terminal and a twelfth terminal. The eleventh terminal is electrically connected to the first outgoing terminal, and the twelfth terminal is electrically connected to the second outgoing terminal.

10. An electric power system, characterized in that, The device includes an electrical appliance and the battery as described in any one of claims 1 to 9, wherein the battery is electrically connected to the electrical appliance and is capable of providing electrical energy to the electrical appliance.

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