Battery management mechanism, battery pack and electric equipment

Abstract

The embodiment of the utility model provides a battery management mechanism, a battery pack and electric equipment, and the battery management mechanism comprises a battery shell which is provided with a connecting part; the battery management assembly comprises a high-voltage execution unit and a connector, the high-voltage execution unit is connected with the connecting part, the connector is directly connected with the high-voltage execution unit, and the side, away from the high-voltage execution unit, of the connector extends to the outer side of the battery shell. The high-voltage execution unit is connected to the connecting part of the battery shell, and the connector is directly connected to the high-voltage execution unit and extends to the outer side of the battery shell, so that compared with the prior art, a copper bar for realizing connection between the connector and the high-voltage execution unit can be directly omitted, the occupied space is greatly reduced, and the utilization rate of a battery integration space is improved; therefore, the energy density of the battery is improved.

Description

Technical Field

[0001] The present application relates to the technical field of batteries, and in particular to a battery management mechanism, a battery pack, and an electrical device. Background Art

[0002] Energy conservation and emission reduction are key to the sustainable development of the automotive industry. Electric vehicles, due to their energy-saving and environmentally friendly advantages, have become an important component of the sustainable development of the automotive industry. For electric vehicles, battery technology is a key factor in their development.

[0003] In the development of battery technology, in addition to improving battery safety, battery energy density is also an issue that cannot be ignored. Therefore, how to improve battery energy density is a technical problem that needs to be solved urgently in battery technology. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a battery management mechanism, a battery pack and an electrical device, which can greatly reduce the occupied space, improve the utilization rate of the battery integration space, and thus increase the energy density of the battery.

[0005] In a first aspect, an embodiment of the present application provides a battery management mechanism, comprising: a battery housing, which is provided with a connecting portion; a battery management assembly, comprising a high-voltage execution unit and a connector, wherein the high-voltage execution unit is connected to the connecting portion, the connector is directly connected to the high-voltage execution unit, and the connector extends to the outside of the battery housing on a side away from the high-voltage execution unit.

[0006] In the above implementation process, the high-voltage execution unit is connected to the connecting part of the battery shell, and the connector is directly connected to the high-voltage execution unit and extends to the outside of the battery shell. Compared with the existing technology, it can directly omit the copper busbar for connecting the connector and the high-voltage execution unit, greatly reducing the occupied space and improving the battery integration space utilization, thereby improving the energy density of the battery.

[0007] In some embodiments, the high-voltage execution unit includes a high-voltage output structure, which includes a high-voltage output positive electrode and a high-voltage output negative electrode, and the high-voltage output positive electrode and the high-voltage output negative electrode are located on the same side of the battery housing.

[0008] In the above implementation process, by arranging the high-voltage output positive electrode and the high-voltage output negative electrode on the same side of the battery shell, the regularity of the high-voltage output structure arrangement can be ensured, universality can be achieved, which is conducive to improving work efficiency and saving labor costs.

[0009] In some embodiments, the high-voltage execution unit further includes a fast charge execution structure, the fast charge execution structure includes a fast charge execution positive electrode and a fast charge execution negative electrode, and the fast charge execution positive electrode and the fast charge execution negative electrode are located on the same side of the battery housing.

[0010] In the above implementation process, by arranging the fast charging positive electrode and the fast charging negative electrode on the same side of the battery shell, the regularity of the fast charging execution structure arrangement can be ensured, universality can be achieved, which is conducive to improving work efficiency and saving labor costs.

[0011] In some embodiments, the high-voltage output structure and the fast-charge execution structure are located on the same side of the battery housing, and the high-voltage output structure and the fast-charge execution structure are spaced apart. This not only ensures a certain regularity in the arrangement of the high-voltage output structure and the fast-charge execution structure, but also facilitates the plugging and unplugging of external connectors, making the connection convenient and quick.

[0012] In some embodiments, the distance between the high-voltage output structure and the fast-charge execution structure is set to be no less than 69 mm. This facilitates plugging and unplugging of external connectors, making connections convenient and fast, and saving production costs.

[0013] In some embodiments, the connector includes a high-voltage connection structure, which includes a high-voltage connection positive pole and a high-voltage connection negative pole. The high-voltage connection positive pole is connected to the high-voltage output positive pole, and the high-voltage connection negative pole is connected to the high-voltage output negative pole.

[0014] In the above implementation process, the high-voltage connection positive electrode is directly connected to the high-voltage output positive electrode, and the high-voltage connection negative electrode is directly connected to the high-voltage output negative electrode. Compared with the existing technology, it can save the copper bus, greatly reduce the occupied space, reduce the cost investment, and improve the battery integration space utilization, thereby improving the battery energy density.

[0015] In some embodiments, the high-voltage connection structure also includes a first high-voltage connection soft bus and a second high-voltage connection soft bus, the first high-voltage connection soft bus is respectively connected to the high-voltage connection positive pole and the high-voltage output positive pole, and the second high-voltage connection soft bus is respectively connected to the high-voltage connection negative pole and the high-voltage output negative pole.

[0016] In the above implementation process, the first high-voltage connection soft bus is directly connected to the high-voltage connection positive pole and the high-voltage output positive pole, and the second high-voltage connection soft bus is directly connected to the high-voltage connection negative pole and the high-voltage output negative pole. It has the ability to absorb tolerances and can save copper buses, greatly reducing the occupied space, reducing cost investment, and improving the battery integration space utilization, thereby improving the battery energy density.

[0017] In some embodiments, the connector also includes a fast charging connection structure, which includes a fast charging connection positive pole and a fast charging connection negative pole. The fast charging connection positive pole is connected to the fast charging execution positive pole, and the fast charging connection negative pole is connected to the fast charging execution negative pole.

[0018] In the above implementation process, the fast charging positive electrode is directly connected to the fast charging execution positive electrode, and the fast charging negative electrode is directly connected to the fast charging execution negative electrode. Compared with the existing technology, it can save the copper bus, greatly reduce the occupied space, reduce the cost investment, and improve the battery integration space utilization, thereby improving the battery energy density.

[0019] In some embodiments, the fast charging connection structure also includes a first fast charging connection soft row and a second fast charging connection soft row, the first fast charging connection soft row is respectively connected to the fast charging connection positive pole and the fast charging execution positive pole, and the second fast charging connection soft row is respectively connected to the fast charging connection negative pole and the fast charging execution negative pole.

[0020] In the above implementation process, the first fast charging connection soft bus is directly connected to the fast charging connection positive pole and the fast charging execution positive pole, and the second fast charging connection soft bus is directly connected to the fast charging connection negative pole and the fast charging execution negative pole. It has the ability to absorb tolerances and can save copper busbars, greatly reducing the occupied space, reducing cost investment, and improving the battery integration space utilization, thereby improving the battery energy density.

[0021] In a second aspect, the present application also provides a battery pack comprising a battery management mechanism as described in any one of the above items.

[0022] Since the battery pack provided in the second aspect includes a battery management mechanism, the battery pack has all the technical effects of the battery management mechanism, which will not be described in detail here.

[0023] In a third aspect, the present application also provides an electrical device comprising the battery pack as described above.

[0024] Since the electrical equipment provided in the third aspect includes a battery pack, the electrical equipment has all the technical effects of the battery pack and will not be described in detail here.

[0025] Other features and advantages of the present disclosure will be set forth in the following description, or some features and advantages may be inferred or unambiguously determined from the description, or may be learned by practicing the above-mentioned technology of the present disclosure.

[0026] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 A schematic diagram of the structure of the battery management mechanism provided in an embodiment of the present application;

[0029] Figure 2 A partially enlarged schematic diagram of a battery management mechanism provided in an embodiment of the present application;

[0030] Figure 3 A schematic diagram of a portion of the structure of the battery management mechanism provided in an embodiment of the present application.

[0031] Reference numerals

[0032] 100. Battery case; 200. Battery management assembly; 201. High-voltage execution unit; 2011. High-voltage output positive electrode; 2012. High-voltage output negative electrode; 2013. Fast-charge execution positive electrode; 2014. Fast-charge execution negative electrode; 202. Connector; 2021. High-voltage connection positive electrode; 2022. High-voltage connection negative electrode; 2023. First high-voltage connection flexible platoon; 2024. Second high-voltage connection flexible platoon; 2025. Fast-charge connection positive electrode; 2026. Fast-charge connection negative electrode; 2027. First fast-charge connection flexible platoon; 2028. Second fast-charge connection flexible platoon. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0034] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0035] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0036] Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or point connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0037] Furthermore, the terms "first," "second," etc., are primarily used to distinguish between different devices, elements, or components (which may or may not be of the same type and configuration), and are not intended to indicate or imply the relative importance or quantity of the devices, elements, or components indicated. Unless otherwise specified, "plurality" means two or more.

[0038] Example

[0039] In the battery pack, the high-voltage execution unit is also called BDU. BDU mainly includes components such as relays, fuses, pre-charge resistors and current sensors. It is an electrical assembly responsible for the on-off and detection of the battery's high-voltage output. The connector is also called a high-voltage connector or fast-charging connector, and is mainly responsible for the battery's discharge and charging functions.

[0040] During the design process, the inventors discovered that most existing BDUs are placed directly inside the battery pack box, with a certain gap between them and the connector, and are connected through copper busbars. The use of copper busbars for connection has the following disadvantages: the copper busbars are relatively expensive; the copper busbars occupy a certain amount of space, resulting in low space utilization; and the copper busbars occupy a certain amount of space, which causes the lower and upper shells to be lengthened, resulting in increased weight and reduced energy density of the entire package.

[0041] In view of this, if Figure 1-Figure 3As shown, in the first aspect, an embodiment of the present application provides a battery management mechanism, including: a battery housing 100, which is equipped with a connecting portion; a battery management component 200, including a high-voltage execution unit 201 and a connector 202, the high-voltage execution unit 201 is connected to the connecting portion, the connector 202 is directly connected to the high-voltage execution unit 201, and the connector 202 extends away from the side of the high-voltage execution unit 201 to the outside of the battery housing 100.

[0042] Exemplarily, the high-voltage execution unit 201 is the above-mentioned BDU (Battery Disconnect Unit). The high-voltage execution unit 201 can be fixed on the bracket or beam of the battery housing 100 to ensure that the height of the high-voltage execution unit 201 matches the height of the connector 202. The battery housing 100 is the box of the battery pack. The connector 202 is connected to the high-voltage execution unit 201 and can be used for discharging and charging the battery. The connector 202 is directly connected to the high-voltage execution unit 201 and is fixed by bolts.

[0043] In the above implementation process, the high-voltage execution unit 201 is connected to the connection part of the battery housing 100, and the connector 202 is directly connected to the high-voltage execution unit 201 and extends to the outside of the battery housing 100. Compared with the existing technology, it can directly omit the copper busbar for connecting the connector 202 and the high-voltage execution unit 201, greatly reducing the occupied space, improving the battery integration space utilization, and thus improving the battery's energy density.

[0044] like Figure 3 As shown, the high-voltage execution unit 201 includes a high-voltage output structure, which includes a high-voltage output positive electrode 2011 and a high-voltage output negative electrode 2012 , and the high-voltage output positive electrode 2011 and the high-voltage output negative electrode 2012 are located on the same side of the battery housing 100 .

[0045] For example, the high-voltage output positive electrode 2011 and the high-voltage output negative electrode 2012 are distributed at intervals, and the centers of the high-voltage output positive electrode 2011 and the high-voltage output negative electrode 2012 can be distributed along the same horizontal axis, and the spacing between the high-voltage output positive electrode 2011 and the high-voltage output negative electrode 2012 is not specifically limited and can be set according to actual conditions, which will not be elaborated here.

[0046] In the above implementation process, by arranging the high-voltage output positive electrode 2011 and the high-voltage output negative electrode 2012 on the same side of the battery shell 100, the regularity of the high-voltage output structure arrangement can be ensured, universality can be achieved, which is conducive to improving work efficiency and saving labor costs.

[0047] Please refer to Figure 3 The high-voltage execution unit 201 also includes a fast charge execution structure, which includes a fast charge execution positive electrode 2013 and a fast charge execution negative electrode 2014. The fast charge execution positive electrode 2013 and the fast charge execution negative electrode 2014 are located on the same side of the battery housing 100.

[0048] For example, the fast charging positive electrode 2013 and the fast charging negative electrode 2014 are distributed at intervals, and the centers of the fast charging positive electrode 2013 and the fast charging negative electrode 2014 can be distributed along the same horizontal axis. There is no specific limitation on the spacing between the fast charging positive electrode 2013 and the fast charging negative electrode 2014, and it can be set according to actual conditions, which will not be described here one by one.

[0049] In the above implementation process, by arranging the fast charging execution positive electrode 2013 and the fast charging execution negative electrode 2014 on the same side of the battery shell 100, the regularity of the fast charging execution structure arrangement can be ensured, universality can be achieved, which is conducive to improving work efficiency and saving labor costs.

[0050] In some embodiments, the high-voltage output structure and the fast-charge execution structure are located on the same side of the battery housing 100, and the high-voltage output structure and the fast-charge execution structure are spaced apart. This not only ensures a certain regularity in the arrangement of the high-voltage output structure and the fast-charge execution structure, but also facilitates plugging and unplugging of the external connector 202, making the connection convenient and quick.

[0051] In some embodiments, the distance between the high-voltage output structure and the fast-charge execution structure is set to be no less than 69 mm. This facilitates plugging and unplugging of the external connector 202, making the connection convenient and fast, and saving production costs.

[0052] like Figure 1-Figure 2 As shown, the connector 202 includes a high-voltage connection structure, which includes a high-voltage connection positive pole 2021 and a high-voltage connection negative pole 2022. The high-voltage connection positive pole 2021 is connected to the high-voltage output positive pole 2011, and the high-voltage connection negative pole 2022 is connected to the high-voltage output negative pole 2012.

[0053] In the above implementation process, the high-voltage connection positive electrode 2021 is directly connected to the high-voltage output positive electrode 2011, and the high-voltage connection negative electrode 2022 is directly connected to the high-voltage output negative electrode 2012. Compared with the existing technology, it can save the copper bus, greatly reduce the occupied space, reduce the cost investment, and improve the battery integration space utilization, thereby improving the battery energy density.

[0054] In some embodiments, the high-voltage connection structure also includes a first high-voltage connection soft bus 2023 and a second high-voltage connection soft bus 2024, wherein the first high-voltage connection soft bus 2023 is respectively connected to the high-voltage connection positive pole 2021 and the high-voltage output positive pole 2011, and the second high-voltage connection soft bus 2024 is respectively connected to the high-voltage connection negative pole 2022 and the high-voltage output negative pole 2012.

[0055] In the above implementation process, the first high-voltage connecting soft bus 2023 is directly connected to the high-voltage connecting positive pole 2021 and the high-voltage output positive pole 2011, and the second high-voltage connecting soft bus 2024 is directly connected to the high-voltage connecting negative pole 2022 and the high-voltage output negative pole 2012. It has the ability to absorb tolerances and can save copper busbars, greatly reducing the occupied space, reducing cost investment, and improving the battery integration space utilization, thereby improving the battery energy density.

[0056] In some embodiments, the connector 202 also includes a fast charging connection structure, which includes a fast charging connection positive pole 2025 and a fast charging connection negative pole 2026. The fast charging connection positive pole 2025 is connected to the fast charging execution positive pole 2013, and the fast charging connection negative pole 2026 is connected to the fast charging execution negative pole 2014.

[0057] In the above implementation process, the fast charging connection positive electrode 2025 is directly connected to the fast charging execution positive electrode 2013, and the fast charging connection negative electrode 2026 is directly connected to the fast charging execution negative electrode 2014. Compared with the existing technology, it can save the copper bus, greatly reduce the occupied space, reduce the cost investment, and improve the battery integration space utilization, thereby improving the battery energy density.

[0058] In some embodiments, the fast charging connection structure also includes a first fast charging connection soft row 2027 and a second fast charging connection soft row 2028, the first fast charging connection soft row 2027 is respectively connected to the fast charging connection positive pole 2025 and the fast charging execution positive pole 2013, and the second fast charging connection soft row 2028 is respectively connected to the fast charging connection negative pole 2026 and the fast charging execution negative pole 2014.

[0059] In the above implementation process, the first fast charging connection soft bus 2027 is directly connected to the fast charging connection positive electrode 2025 and the fast charging execution positive electrode 2013, and the second fast charging connection soft bus 2028 is directly connected to the fast charging connection negative electrode 2026 and the fast charging execution negative electrode 2014. It has the ability to absorb tolerances and can save copper buses, greatly reducing the occupied space, reducing cost investment, and improving the battery integration space utilization, thereby improving the battery energy density.

[0060] In a second aspect, the present application also provides a battery pack comprising the battery management mechanism as described above.

[0061] Since the battery pack provided in the second aspect includes a battery management mechanism, the battery pack has all the technical effects of the battery management mechanism, which will not be described in detail here.

[0062] In a third aspect, the present application also provides an electrical device comprising the battery pack as described above.

[0063] Exemplarily, the battery pack is used to provide electrical energy to the electrical device, which may be a vehicle, portable device, ship, spacecraft, electric toy, or electric tool. Vehicles may be fuel-powered vehicles, gas-powered vehicles, or new energy vehicles; new energy vehicles may be pure electric vehicles, hybrid vehicles, or extended-range vehicles; spacecraft include aircraft, rockets, space shuttles, and spacecraft; and electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys. The present application does not impose any particular restrictions on the aforementioned electrical devices.

[0064] For the convenience of description, the following embodiments are described by taking a vehicle as an example of an electrical device according to an embodiment of the present application.

[0065] The vehicle is equipped with a battery pack, which can be located at the bottom, front, or rear of the vehicle. The battery pack can be used to power the vehicle. For example, the battery pack can serve as the vehicle's operating power source and be used in the vehicle's circuit system, such as for starting, navigation, and operating power requirements of the vehicle.

[0066] The vehicle may also include a controller and a motor, where the controller is used to control the battery pack to power the motor, for example, to meet the vehicle's operating power requirements during starting, navigation, and driving.

[0067] In some embodiments of the present application, the battery pack can serve not only as the operating power source of the vehicle, but also as the driving power source of the vehicle, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle.

[0068] Since the electrical equipment provided in the third aspect includes a battery pack, the electrical equipment has all the technical effects of the battery pack and will not be described in detail here.

[0069] In all embodiments of the present application, "big" and "small" are relative, "more" and "less" are relative, and "up" and "down" are relative. The expressions of such relative terms will not be elaborated in the embodiments of the present application.

[0070] It should be understood that the phrases “in this embodiment,” “in an embodiment of the present application,” or “as an optional implementation” mentioned throughout the specification mean that specific features, structures, or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, “in this embodiment,” “in an embodiment of the present application,” or “as an optional implementation” appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in one or more embodiments in any suitable manner. Those skilled in the art should also be aware that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required for the present application.

[0071] In the various embodiments of the present application, it should be understood that the size of the serial numbers of the above-mentioned processes does not necessarily mean the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0072] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included within the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A battery management mechanism, characterized in that: include: a battery housing configured with a connecting portion; The battery management component includes a high-voltage execution unit and a connector, wherein the high-voltage execution unit is connected to the connecting portion, the connector is directly connected to the high-voltage execution unit, and the side of the connector facing away from the high-voltage execution unit extends to the outside of the battery housing.

2. The battery management mechanism according to claim 1, characterized in that: The high-voltage execution unit includes a high-voltage output structure, which includes a high-voltage output positive electrode and a high-voltage output negative electrode. The high-voltage output positive electrode and the high-voltage output negative electrode are located on the same side of the battery housing.

3. The battery management mechanism according to claim 2, characterized in that: The high-voltage execution unit also includes a fast charge execution structure, which includes a fast charge execution positive electrode and a fast charge execution negative electrode. The fast charge execution positive electrode and the fast charge execution negative electrode are located on the same side of the battery housing.

4. The battery management mechanism according to claim 3, characterized in that: The high-voltage output structure and the fast-charge execution structure are located on the same side of the battery housing, and the high-voltage output structure and the fast-charge execution structure are spaced apart.

5. The battery management mechanism according to claim 4, characterized in that: The distance between the high-voltage output structure and the fast-charge execution structure is set to be no less than 69 mm.

6. The battery management mechanism according to claim 3 or 5, characterized in that: The connector includes a high-voltage connection structure, which includes a high-voltage connection positive electrode and a high-voltage connection negative electrode. The high-voltage connection positive electrode is connected to the high-voltage output positive electrode, and the high-voltage connection negative electrode is connected to the high-voltage output negative electrode.

7. The battery management mechanism according to claim 6, characterized in that: The high-voltage connection structure also includes a first high-voltage connection bus and a second high-voltage connection bus, wherein the first high-voltage connection bus is respectively connected to the high-voltage connection positive pole and the high-voltage output positive pole, and the second high-voltage connection bus is respectively connected to the high-voltage connection negative pole and the high-voltage output negative pole.

8. The battery management mechanism according to claim 7, characterized in that: The connector also includes a fast charging connection structure, which includes a fast charging connection positive pole and a fast charging connection negative pole. The fast charging connection positive pole is connected to the fast charging execution positive pole, and the fast charging connection negative pole is connected to the fast charging execution negative pole.

9. The battery management mechanism according to claim 8, characterized in that: The fast charging connection structure also includes a first fast charging connection soft bus and a second fast charging connection soft bus, the first fast charging connection soft bus is respectively connected to the fast charging connection positive pole and the fast charging execution positive pole, and the second fast charging connection soft bus is respectively connected to the fast charging connection negative pole and the fast charging execution negative pole.

10. A battery pack, characterized in that: The invention comprises a battery management mechanism as described in any one of claims 1 to 9.

11. An electrical device, characterized in that: Comprising the battery pack as claimed in claim 10.

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