Battery case, battery, and electric device

Abstract

The application provides a battery box, a battery and an electric device, and belongs to the technical field of batteries. The battery box comprises a box body and a wire harness support. The box body has a containing cavity extending along a first direction, and the box body has a weight-reducing cavity penetrating through a first side surface of the box body, the first side surface intersects the first direction, and the first direction is the same as the height direction of the box body. The wire harness support is located outside the containing cavity, one end of the wire harness support extends into the weight-reducing cavity from the first side surface, and at least part of the wire harness support located outside the weight-reducing cavity is configured to support the wire harness. The wire harness support is installed and fixed through the original weight-reducing cavity of the battery box, so that the fixing of the wire harness support is ensured, the wire harness support does not need to be installed through additional connecting holes on the battery box, the strength of the battery box is not affected, additional manufacturing processes are not increased, and the installation is simpler. The wire harness is supported by the installed and fixed wire harness support, so that the stability of the wire harness is improved, and the possibility of the wire harness falling off and crushing the connector is reduced.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery box, battery, and power supply device. Background Technology

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

[0003] The battery consists of a battery box and individual battery cells located within the battery box. Electrical signals from the individual battery cells are transmitted via a wiring harness. One end of the wiring harness connects to the individual battery cells in the battery box, and the other end connects to a connector. Under the influence of gravity, the wiring harness may sink, causing it to compress the connector and potentially damage it.

[0004] In related technologies, tape is generally used to attach the wire harness to the battery box. However, the tape is not secure, and the wire harness is prone to falling off during battery transportation and vibration conditions, causing the wire harness to squeeze the connector and damage the connector. Summary of the Invention

[0005] This application aims to at least solve one of the technical problems existing in the background art. To this end, one object of this application is to provide a battery box, battery, and power supply device to reduce the compression of the connector by the wiring harness and reduce the possibility of connector damage.

[0006] An embodiment of the first aspect of this application provides a battery box, the battery box comprising: a box body having a receiving cavity extending along a first direction, the box body having a weight-reducing cavity penetrating a first side surface of the box body, the first side surface intersecting the first direction, the first direction being the same as the height direction of the box body; and a wire harness bracket located outside the receiving cavity, one end of the wire harness bracket extending from the first side surface into the weight-reducing cavity, at least a portion of the wire harness bracket located outside the weight-reducing cavity being configured to support a wire harness.

[0007] In the technical solution of this application embodiment, one end of the wire harness bracket extends into the weight reduction cavity from the first side. The wire harness bracket is installed and fixed through the original weight reduction cavity of the battery box to ensure its stability. This eliminates the need for additional connection holes on the battery box to install the wire harness bracket, thus not affecting the strength of the battery box or adding extra manufacturing steps, making the process simpler. The installed and fixed wire harness bracket supports the wire harness, improving its stability and reducing the possibility of the wire harness falling off and damaging the connector.

[0008] In some embodiments, the wire harness bracket includes: a mounting portion, one end of which extends into the weight reduction cavity from a first side; a connecting portion, one end of which is connected to the other end of the mounting portion; and a support portion, which is connected to the other end of the connecting portion and is located outside the weight reduction cavity. The support portion and the mounting portion are both located on the same side of the connecting portion, and the support portion is configured to support the wire harness. The wire harness bracket can be fixedly installed via the mounting portion, and the connection of the support portion to the other side of the housing reduces the swaying of the support portion, thereby improving the overall stability of the wire harness bracket.

[0009] In some embodiments, the support portion includes: a first support arm, one end of which is connected to the other end of the connecting portion; a bent arm, one end of which is connected to the other end of the first support arm; and a second support arm, one end of which is connected to the other end of the bent arm; wherein the second support arm and the first support arm are both located on the same side of the bent arm. The fact that the second support arm and the first support arm are both located on the same side of the bent arm creates a U-shaped support structure when viewed from the side, wherein the bent arm forms the bottom of the U-shaped support structure, and the second support arm and the first support arm are the two sides of the U-shaped support structure. The wire harness can be placed inside the U-shaped support structure, and the U-shaped support structure has an opening, allowing for easy removal of the wire harness from the U-shaped support structure, facilitating the installation and removal of the wire harness.

[0010] In some embodiments, the surface of the first support arm is disposed opposite to the second side, the second side is adjacent to the first side, and the second side is located on the side of the housing away from the receiving cavity. The plane containing the surface of the second support arm intersects the plane containing the second side, and the second support arm is inclined toward the first support arm. The surface of the first support arm is parallel to the second side, allowing the first support arm to approach or even fit against the second side, reducing the volume occupied by the support portion. The plane containing the surface of the second support arm intersects the plane containing the second side, and the second support arm is inclined toward the first support arm, resulting in a smaller opening in the U-shaped support structure, making it less likely for wire harnesses placed within the U-shaped support structure to detach.

[0011] In some embodiments, the wiring harness bracket includes two mounting portions spaced apart along a second direction and two connecting portions connected to each mounting portion in a corresponding manner. The second direction is parallel to the first side and intersects the first direction. A support portion is connected to the other end of the two connecting portions. The two mounting portions extend into different weight-reduction cavities, increasing the number of connection points between the wiring harness bracket and the battery box, resulting in a more stable connection. Similarly, the two connecting portions increase the number of connection points between the support portion and the connecting portions, further enhancing the stability of the connection.

[0012] In some embodiments, the other end of the second support arm is a free end. Having the other end of the second support arm as a free end allows the opening of the U-shaped support structure formed by the support portion to be open, rather than closed, facilitating the placement and removal of the wire harness.

[0013] In some embodiments, the other end of the second support arm is connected to the other end of the connecting portion. The connection between the other end of the second support arm and the other end of the connecting portion ensures that the opening of the U-shaped support structure formed by the support portion is closed, that is, the U-shaped support structure is closed from a perspective parallel to the second direction, making it difficult for the wire harness located within the U-shaped support structure to fall off.

[0014] In some embodiments, the first support arm is connected to the other end of one of the two connecting parts, and the second support arm is connected to the other end of the other connecting part. The first and second support arms are connected to different connecting parts respectively, so they will not interfere with each other.

[0015] In some embodiments, the wiring harness bracket further includes a limiting plate, the surface of which is perpendicular to the second direction. The limiting plate is connected to the connecting portion, and the limiting plate and the mounting portion are located on opposite sides of the connecting portion along the first direction. The limiting plate extends out of the weight reduction cavity. When the wiring harness bracket moves, the limiting plate will abut against other components of the battery, thereby indicating the movement of the wiring harness bracket and improving its stability.

[0016] In some embodiments, the wire harness bracket includes two limiting plates, which are connected to two opposite sides of the two connecting portions. Each of the two opposite sides of the two connecting portions is connected to a limiting plate, allowing the first connector to be placed between the two limiting plates. When the wire harness bracket moves in two opposite directions along the second direction, the limiting plates can restrict the movement of the wire harness bracket.

[0017] In some embodiments, the second side of the housing has a mounting hole, the second side is adjacent to the first side, and the second side is located on the side of the housing away from the receiving cavity. The battery box also includes a wiring harness clip, one end of which is connected to the mounting hole, and the other end of which is located outside the mounting hole. The wiring harness clip is configured to allow the wiring harness to pass through. The wiring harness clip further secures the wiring harness, improving its stability and reducing the possibility of the wiring harness falling off and damaging the connector.

[0018] An embodiment of the second aspect of this application provides a battery that includes the battery case described in the above embodiments.

[0019] An embodiment of the third aspect of this application provides an electrical device that includes the battery described in the above embodiments, the battery being used to provide electrical energy.

[0020] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0021] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0022] Figure 1 This application provides structural schematic diagrams of vehicles for some embodiments;

[0023] Figure 2 This is a schematic diagram of the battery box structure according to some embodiments of this application;

[0024] Figure 3 This is a partial structural diagram of the connection between the housing and the wire harness bracket in some embodiments of this application;

[0025] Figure 4 For this application Figure 3 The front view showing the connection between the housing and the wire harness bracket;

[0026] Figure 5 This is a schematic diagram of the structure of a wire harness bracket according to some embodiments of this application;

[0027] Figure 6 This is a front view of a wire harness bracket according to some embodiments of this application;

[0028] Figure 7 This is a right view of a wire harness bracket according to some embodiments of this application;

[0029] Figure 8 This is a schematic diagram of the battery box structure according to other embodiments of this application;

[0030] Figure 9 This is a partial structural diagram of the connection between the housing and the wire harness bracket in some other embodiments of this application;

[0031] Figure 10 For this application Figure 9 The front view showing the connection between the housing and the wire harness bracket;

[0032] Figure 11 This is a schematic diagram of the structure of a wire harness bracket according to other embodiments of this application;

[0033] Figure 12 This is a front view of a wire harness bracket according to other embodiments of this application;

[0034] Figure 13 This is a right view of a wire harness bracket according to other embodiments of this application.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1000, vehicle; 100, battery; 200, controller; 300, motor;

[0037] 10. Housing; 11. Weight reduction cavity; 12. First side; 13. Second side; 131. Mounting hole; 20. Wire harness bracket; 21. Mounting part; 22. Connecting part; 23. Support part; 231. First support arm; 2311. Branch; 232. Bending arm; 233. Second support arm; 24. Limiting plate; 30. Wire harness buckle; 40. End cap; 50. Wire harness; 51. First wire harness branch; 52. Second wire harness branch; 60. First connector; 70. Second connector. Detailed Implementation

[0038] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0039] 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 terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0040] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0041] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0042] In the description of the embodiments in this application, 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 represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0043] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0044] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0045] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0046] Currently, judging from market trends, the application of power batteries is becoming increasingly widespread. Power batteries are not only used in energy storage systems such as hydropower, thermal power, wind power, and solar power plants, but also extensively used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of power battery applications, market demand is also constantly increasing.

[0047] The battery consists of a battery box and individual battery cells located within the battery box. Electrical signals from the individual battery cells are transmitted via a wiring harness. One end of the wiring harness connects to the individual battery cells in the battery box, and the other end connects to a connector. The connector is used to connect to other components in the electrical device. When the battery is not yet installed in the electrical device, the connector is not fixed and is left to its own devices. The wiring harness will sink under gravity, and during battery transportation and vibration, the wiring harness may compress the connector, causing damage.

[0048] In related technologies, to prevent the wire harness from squeezing the connector, the wire harness needs to be secured, for example, by using tape to adhere it to the battery box. However, tape is not always secure, and it easily comes off during battery transportation and under vibration, causing the wire harness to squeeze the connector. Other solutions in related technologies involve drilling additional holes in the battery box, then using cable ties through these holes to secure the wire harness. After securing the cable ties, excess ties are cut off, and residual ties can easily damage other components in the battery. Furthermore, drilling additional holes in the battery box affects its strength and is a complex process.

[0049] This application provides a battery box, which includes a box body and a wiring harness bracket. The box body has a receiving cavity extending along a first direction and a weight-reducing cavity extending through a first side surface of the box body. The first side surface intersects the first direction, which is the same as the height direction of the box body. The wiring harness bracket is located outside the receiving cavity, with one end of the wiring harness bracket extending into the weight-reducing cavity from the first side surface. At least a portion of the wiring harness bracket located outside the weight-reducing cavity is configured to support the wiring harness. By supporting the wiring harness with the wiring harness bracket, the stability of the wiring harness is ensured. Furthermore, the wiring harness bracket is installed through the original weight-reducing cavity of the box body, eliminating the need for additional connection holes on the box body for installation. This does not affect the strength of the battery box, nor does it add any additional manufacturing steps, making the process simpler.

[0050] The battery box disclosed in this application can be used in batteries, which can be used in electrical devices such as vehicles, ships, or aircraft, but are not limited to those used in such devices. A power system for such an electrical device can be constructed using the batteries disclosed in this application, which helps to reduce the possibility of damage to the connectors in the battery and improves the stability of battery performance.

[0051] This application provides an electrical device that uses a battery as a power source. The electrical device can be, but is not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc. Electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0052] For ease of explanation, the following embodiments will be described using a vehicle 1000 as an example of an electrical device according to an embodiment of this application.

[0053] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle provided in some embodiments of this application. The vehicle 1000 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle, or a range-extended electric vehicle, etc. A battery 100 is disposed inside the vehicle 1000, and the battery 100 can be located at the bottom, front, or rear of the vehicle 1000. The battery 100 can be used to power the vehicle 1000; for example, the battery 100 can serve as the operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300. The controller 200 is used to control the battery 100 to supply power to the motor 300, for example, to meet the power needs of the vehicle 1000 during startup, navigation, and driving.

[0054] In some embodiments of this application, the battery 100 can not only serve as the operating power source for the vehicle 1000, but also as the driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0055] This application provides a battery box. Figure 2 This is a schematic diagram of the battery box structure according to some embodiments of this application. Figure 3 This is a partial structural diagram of the connection between the housing and the wire harness bracket in some embodiments of this application. Figure 4 For this application Figure 3 The front view showing the connection between the housing and the wiring harness bracket. See also... Figures 2 to 4 The battery box includes a housing 10 and a wiring harness bracket 20. The housing 10 has a receiving cavity extending along a first direction X, and a weight-reducing cavity 11 extending through a first side surface 12 of the housing 10, which intersects the first direction X, the same as the height direction of the housing 10. The wiring harness bracket 20 is located outside the receiving cavity, with one end extending from the first side surface 12 into the weight-reducing cavity 11. At least a portion of the wiring harness bracket 20 located outside the weight-reducing cavity 11 is configured to support a wiring harness 50.

[0056] The battery includes a battery case and individual battery cells. The battery cells are housed within the battery case, which provides space for the battery cells. The battery case can have various structures. In some embodiments, the battery case may include a first part and a second part, which overlap each other, together defining a space for accommodating the battery cells. The first part may be a hollow structure open at one end, and the second part may be a plate-like structure, covering the open side of the first part so that the first and second parts together define the space; alternatively, both the first and second parts may be hollow structures open on one side, with the open side of the first part covering the open side of the second part. Of course, the battery case formed by the first and second parts can have various shapes, such as a cylinder, a cuboid, etc. Figure 2 For illustrative purposes only. See also [link to relevant documentation] for some embodiments of this application. Figure 2 The first part mentioned above can be the housing 10, and the second part mentioned above can be the end cap 40. The end cap 40 covers the opening of the receiving cavity of the housing 10, and the battery cell is located inside the receiving cavity, such as... Figure 2 As shown, since the end cap 40 covers the receiving cavity of the box body 10, the receiving cavity is not shown in the accompanying drawings of this embodiment.

[0057] In the embodiments of this application, the first side 12 may be the side facing the opening of the receiving cavity. In this way, when the end cap 40 covers the opening of the receiving cavity, the end cap 40 may also press against the end of the wire harness bracket 20 that extends from the first side 12 into the weight reduction cavity 11, thereby fixing the wire harness bracket 20.

[0058] In an embodiment of this application, a straight line parallel to the height direction of the housing 10 passes through the opening of the receiving cavity.

[0059] In other implementations, the first side 12 can also be located in other positions, and the wire harness bracket 20 can be fixed in other ways, such as by bonding the wire harness bracket 20 to the first side 12, or by making the wire harness bracket 20 interfere with the weight reduction cavity 11, thereby fixing the wire harness bracket 20.

[0060] In a battery, there can be multiple battery cells, which can be connected in series, parallel, or a combination thereof. A combination thereof means that multiple battery cells are connected in both series and parallel. Multiple battery cells can be directly connected in series, parallel, or a combination thereof, and then the entire assembly of the battery cells is housed within a battery case. Alternatively, a battery can consist of multiple battery cells first connected in series, parallel, or a combination thereof to form a battery module, and then multiple battery modules connected in series, parallel, or a combination thereof to form a whole, which is then housed within a battery case. The battery may also include other structures; for example, it may include a busbar component for electrical connection between multiple battery cells. Each battery cell can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited to these. Battery cells can be cylindrical, flat, cuboid, or other shapes.

[0061] The weight reduction cavity 11 is a cavity in the housing 10, which can reduce the weight of the housing 10 and increase the energy density of the battery. Secondly, when the housing 10 is compressed, the weight reduction cavity 11 can slow down the energy transfer, thereby reducing the impact force on the battery cells located in the housing 10 and improving the stability of the battery.

[0062] The number of weight-reducing cavities 11 is unlimited and can be set according to requirements. The shape of the weight-reducing cavities 11 is not limited; for example, the shape of the weight-reducing cavity 11 can be cylindrical, prismatic, or other irregular shapes. In the embodiments of this application, such as... Figure 2 and Figure 3 As shown, the shape of the weight-reducing cavity 11 may include a triangular prism. Compared with other shapes of weight-reducing cavities 11, the triangular prism has a regular shape, is easy to manufacture, and has better stability, which can improve the strength of the battery box.

[0063] Figure 2 The shape of a battery box according to this application is shown. Figure 2 In this embodiment, the battery box is rectangular in shape, and the box body 10 may include two end plates and two side plates. The two end plates and two side plates form a rectangular receiving cavity, and one end of the wire harness bracket 20 extends into the weight-reducing cavity of the end plate. In other implementations, one end of the wire harness bracket 20 may also extend into the weight-reducing cavity of the side plate.

[0064] For example, when one end of the wire harness support 20 extends into the weight-reduction cavity of the end plate, the first side 12 can be one of the surfaces of the end plate.

[0065] like Figure 2As shown, one end of the wiring harness 50 is connected to the first connector 60, and the other end of the wiring harness 50 is connected to the second connector 70. The first connector 60 is used to connect to a battery cell located in the battery box, and the second connector 70 is used to connect to other components in the electrical device, such as the controller 200, allowing the electrical device to know the status of the battery cell and control it. Exemplarily, the first connector 60 can be mounted on the battery box for stability; when the battery is not installed in the electrical device, the second connector 70 is freely placed; when the battery is installed in the electrical device, the second connector 70 can be mounted on the electrical device to ensure stability.

[0066] See Figures 2 to 4 The wire harness 50 includes a first wire harness branch 51 and a second wire harness branch 52. Both the first wire harness branch 51 and the second wire harness branch 52 can be supported by the wire harness bracket 20, or only one of the first wire harness branch 51 and the second wire harness branch 52 can be supported by the wire harness bracket 20. Of course, in other implementations, the wire harness 50 may also include other numbers of wire harness branches, and different numbers of wire harness branches can be placed on the wire harness bracket 20 to support the wire harness as needed.

[0067] In the embodiments of this application, at least a portion of the wire harness bracket 20 located outside the weight reduction cavity 11 is configured to support the wire harness 50. This can be characterized as a portion of the wire harness bracket 20 located outside the weight reduction cavity 11 supporting the wire harness 50, and the other portion of the wire harness bracket 20 located outside the weight reduction cavity 11 may also have other functions, such as being used for connection.

[0068] In the embodiments of this application, one end of the wire harness bracket 20 extends into the weight reduction cavity 11 from the first side 12. The wire harness bracket 20 is installed and fixed through the original weight reduction cavity 11 of the battery box, ensuring the fixation of the wire harness bracket 20. This eliminates the need for additional connection holes on the battery box to install the wire harness bracket, does not affect the strength of the battery box, and does not add extra manufacturing steps, making the process simpler. The installed and fixed wire harness bracket 20 supports the wire harness, improving its stability and reducing the possibility of the wire harness falling off and damaging the connector.

[0069] In the embodiments of this application, it is not necessary to cut the wire harness bracket 20, thereby reducing the possibility of the wire harness bracket 20 damaging other components in the battery and improving the reliability of the battery.

[0070] According to some embodiments of this application, Figure 5 This is a schematic diagram of the structure of a wire harness bracket according to some embodiments of this application. Figure 6 This is a front view of a wire harness bracket according to some embodiments of this application. Figure 7This is a right view of a wire harness bracket according to some embodiments of this application. (In conjunction with...) Figures 2 to 7 The wire harness bracket 20 includes a mounting portion 21, a connecting portion 22, and a support portion 23. One end of the mounting portion 21 extends into the weight-reducing cavity 11 from the first side 12, and the other end of the mounting portion 21 is connected to one end of the connecting portion 22. The other end of the connecting portion 22 is connected to the support portion 23, which is located outside the weight-reducing cavity 11. The support portion 23 and the mounting portion 21 are both located on the same side of the connecting portion 22, and the support portion 23 is configured to support the wire harness.

[0071] In the embodiments of this application, the mounting part 21 is used to fix the wire harness bracket 20. For example, the mounting part 21 can be a strip-shaped support rod, so that one end of the mounting part 21 can extend into the weight reduction cavity 11 from the first side 12.

[0072] In embodiments of this application, the connecting portion 22 is used to connect the mounting portion 21 and the support portion 23. Exemplarily, the connecting portion 22 may be a connecting plate or a connecting rod. The connecting portion 22 may be fitted against the first side surface 12 to reduce the shaking of the connecting portion 22 and improve the stability of the connecting portion 22; in other implementations, the connecting portion 22 may not be fitted against the first side surface 12.

[0073] In the embodiments of this application, the support portion 23 supports the wire harness to reduce the possibility of the wire harness falling off and damaging the connector.

[0074] In the embodiments of this application, see Figure 5 and Figure 7 The support part 23 and the mounting part 21 are both located on the same side of the connecting part 22, so that the support part 23, the mounting part 21 and the connecting part 22 form a hook-shaped structure. The support part 23 is located in the weight reduction cavity 11 and is connected to the other side of the box to reduce the shaking of the support part 23 and improve the stability of the support part 23.

[0075] In the embodiments of this application, the mounting part 21, the connecting part 22 and the supporting part 23 may be integrally formed; or the mounting part 21, the connecting part 22 and the supporting part 23 may be manufactured separately and then connected together. For example, the mounting part 21, the connecting part 22 and the supporting part 23 may be connected together by welding.

[0076] In the embodiments of this application, the wire harness bracket 20 can be fixedly installed by the mounting part 21, and the support part 23 is connected to the other side of the housing, which can reduce the shaking of the support part 23 and thus improve the stability of the entire wire harness bracket 20.

[0077] According to some embodiments of this application, see Figures 5 to 7The support portion 23 includes a first support arm 231, a bent arm 232, and a second support arm 233. One end of the first support arm 231 is connected to the other end of the connecting portion 22, the other end of the first support arm 231 is connected to one end of the bent arm 232, and the other end of the bent arm 232 is connected to one end of the second support arm 233. The second support arm 233 and the first support arm 231 are both located on the same side of the bent arm 232.

[0078] In the embodiments of this application, the first support arm 231, the bent arm 232 and the second support arm 233 may be integrally formed; or the first support arm 231, the bent arm 232 and the second support arm 233 may be manufactured separately and then connected together. For example, the first support arm 231, the bent arm 232 and the second support arm 233 may be connected together by welding.

[0079] In the embodiments of this application, the number of the first support arm 231, the bending arm 232 and the second support arm 233 can be determined according to requirements. For example, the wire harness bracket 20 may include one first support arm 231, two bending arms 232 and two second support arms 233. One end of each of the two bending arms 232 is connected to the first support arm 231, and the other end of each of the two bending arms 232 is connected to the two second support arms 233 in a one-to-one correspondence.

[0080] In the embodiments of this application, the second support arm 233 and the first support arm 231 are both located on the same side of the bent arm 232, such that the support portion 23, when viewed from the side (e.g.) Figure 7 (From the perspective shown) a U-shaped support structure is formed, with the bent arm 232 forming the bottom of the U-shaped support structure, and the second support arm 233 and the first support arm 231 forming the two sides of the U-shaped support structure. The wire harness can be placed inside the U-shaped support structure, which also has an opening to facilitate the removal of the wire harness, making it easy to install and remove the wire harness.

[0081] According to some embodiments of this application, in conjunction with Figures 2 to 7 The surface of the first support arm 231 is disposed opposite to the second side 13. The second side 13 is adjacent to the first side 12 and is located on the side of the housing 10 away from the receiving cavity. The plane on the surface of the second support arm 233 intersects the plane on the second side 13 and the second support arm 233 is inclined toward the first support arm 231.

[0082] In the embodiments of this application, both the first support arm 231 and the second support arm 233 can be plate-like structures. The thickness of the plate-like structure is small, which can reduce the volume occupied by the first support arm 231 and the second support arm 233 and improve the energy density of the battery. For example, the surface of the first support arm 231 is the plate surface of the first support arm 231, and the surface of the second support arm 233 is the plate surface of the second support arm 233.

[0083] In the embodiments of this application, the plane containing the surface of the first support arm 231 is parallel to the plane containing the second side 13, allowing the first support arm 231 to approach or even fit against the second side 13, reducing the volume occupied by the support portion 23. The plane containing the surface of the second support arm 233 intersects with the plane containing the second side 13, and the second support arm 233 is inclined toward the first support arm 231, making the opening of the U-shaped support structure formed by the support portion 23 smaller, and making it less likely for the wire harness placed in the U-shaped support structure to fall off.

[0084] In the embodiments of this application, the support part 23 can be made of an elastic material, so that when placing the wire harness, the opening of the U-shaped support structure can be opened to facilitate the placement of the wire harness.

[0085] According to some embodiments of this application, in conjunction with Figures 5 to 7 The wire harness bracket 20 includes two mounting portions 21 arranged at intervals along the second direction Y and two connecting portions 22 that are connected to the mounting portions 21 one by one. The second direction Y is parallel to the first side 12 and intersects the first direction X. The support portion 23 is connected to the other end of the two connecting portions 22.

[0086] In some embodiments of this application, the second direction Y is perpendicular to the first direction X; in other embodiments of this application, the second direction Y may not be perpendicular to the first direction X.

[0087] In the embodiments of this application, the two mounting parts 21 extend into different weight-reduction cavities 11.

[0088] In some embodiments of this application, see Figure 5 and Figure 6 The support part 23 may include two branches 2311, and the two branches 2311 are respectively connected to the two connecting parts 22 one by one.

[0089] In some other embodiments of this application, the two connecting portions 22 may be connected to the side of the support portion 23 extending in the second direction Y.

[0090] In the embodiments of this application, two mounting portions 21 are provided, each extending into a different weight-reducing cavity 11, resulting in more connection points between the wiring harness bracket 20 and the battery box, and a more stable connection. Simultaneously, two connecting portions 22 are provided, further increasing the number of connection points between the support portion 23 and the connecting portions 22, and making the connection more stable.

[0091] According to some embodiments of this application, in conjunction with Figures 2 to 7 The other end of the second support arm 233 is the free end.

[0092] See Figure 5 and Figure 7 The free end of the second support arm 233 can be rolled inward, so that the side of the second support arm 233 also rolls inward, thereby reducing the possibility of the side of the second support arm 233 damaging other components inside the battery and improving the reliability of the battery.

[0093] In the embodiments of this application, the other end of the second support arm 233 is a free end, which allows the opening of the U-shaped support structure formed by the support part 23 to be open and not closed, making it convenient to place and remove the wire harness.

[0094] Figures 2 to 7 One example of the wire harness bracket in this application is shown. In other implementations, the wire harness bracket may also take other forms.

[0095] Figure 8 This is a schematic diagram of the battery box structure of some other embodiments of this application. Figure 9 This is a partial structural diagram of the connection between the housing and the wire harness bracket in some other embodiments of this application. Figure 10 For this application Figure 9 The front view showing the connection between the housing and the wire harness bracket. Figure 11 This is a schematic diagram of the structure of a wire harness bracket according to other embodiments of this application. Figure 12 This is a front view of a wire harness bracket according to other embodiments of this application. Figure 13 This is a right view of a wire harness bracket according to other embodiments of this application. (In conjunction with...) Figures 6 to 13 The other end of the second support arm 233 is connected to the other end of the connecting part 22.

[0096] In the embodiments of this application, the other end of the second support arm 233 is connected to the other end of the connecting portion 22, such that the opening of the U-shaped support structure formed by the support portion 23 is closed, that is, along a perspective parallel to the second direction Y (e.g. Figure 13 (From the perspective shown) The U-shaped support structure is closed, and the wire harness located inside the U-shaped support structure is not easy to fall off.

[0097] According to some embodiments of this application, in conjunction with Figures 11 to 13The first support arm 231 is connected to the other end of one of the two connecting parts 22, and the second support arm 233 is connected to the other end of the other connecting part 22.

[0098] In the embodiments of this application, the first support arm 231 and the second support arm 233 are respectively connected to different connecting parts 22, and will not interfere with each other.

[0099] According to some embodiments of this application, in conjunction with Figures 2 to 7 as well as Figures 8 to 13 The wire harness bracket 20 also includes a limiting plate 24. The surface of the limiting plate 24 is perpendicular to the second direction Y. The limiting plate 24 is connected to the connecting part 22. The limiting plate 24 and the mounting part 21 are located on opposite sides of the connecting part 22 along the first direction X.

[0100] See Figure 3 and Figure 5 The limiting plate 24 and the mounting part 21 are located on opposite sides of the connecting part 22 along the first direction X. When the wire harness bracket 20 is installed in the battery box, the mounting part 21 extends into the weight reduction cavity 11, and the limiting plate 24 extends out of the weight reduction cavity 11.

[0101] In the embodiments of this application, the limiting plate 24 extends out of the weight reduction cavity 11. When the wire harness bracket 20 moves, the limiting plate 24 will abut against other components of the battery, thereby indicating the movement of the wire harness bracket 20 and improving the stability of the wire harness bracket 20.

[0102] For example, the limiting plate 24 can be set at a position corresponding to the first connector 60, and the movement of the wire harness bracket 20 is restricted by the first connector 60 abutting against the limiting plate 24.

[0103] According to some embodiments of this application, in conjunction with Figures 5 to 7 as well as Figures 11 to 13 The wire harness bracket 20 includes two limiting plates 24, which are respectively connected to the two opposite sides of the two connecting parts 22.

[0104] In the embodiments of this application, the two opposite sides of the two connecting parts 22 are connected to limit plates 24, so that the first connector 60 can be placed between the two limit plates 24. When the wire harness bracket 20 moves in two opposite directions along the second direction Y, the limit plates 24 can restrict the movement of the wire harness bracket 20.

[0105] According to some embodiments of this application, see Figures 2 to 4 as well as Figures 8 to 10The second side 13 of the housing 10 has a mounting hole 131. The second side 13 is adjacent to the first side 12 and is located on the side of the housing 10 away from the receiving cavity. The battery box also includes a wiring harness clip 30, one end of which is connected to the mounting hole 131, and the other end of which is located outside the mounting hole 131. The wiring harness clip 30 is configured to allow a wiring harness to pass through.

[0106] The second side 13 of the housing 10 has multiple mounting holes 131, which can also reduce the weight of the housing. One of the mounting holes 131 can be used as the mounting hole for the wire harness clip 30.

[0107] In the embodiments of this application, one end of the wire harness clip 30 is interference-fitted with the mounting hole 131, making the installation method simpler and eliminating the need for additional connecting parts, thus having a smaller impact on the weight of the battery box.

[0108] In some embodiments of this application, the other end of the wire harness clip 30 may include a through hole for the wire harness to pass through; in other embodiments of this application, the other end of the wire harness clip 30 may include a through groove for the wire harness to pass through.

[0109] In the embodiments of this application, a wire harness clip 30 is provided to further secure the wire harness, thereby improving the stability of the wire harness and reducing the possibility of the wire harness falling off and damaging the connector.

[0110] This application provides a battery, which includes the battery case of any of the above embodiments.

[0111] The battery provided in this application embodiment can improve the stability of the wiring harness, reduce the possibility of the wiring harness falling off and damaging the connector, and improve the stability of the battery.

[0112] This application provides an electrical device, which includes the battery described in the above embodiments, and the battery is used to provide electrical energy.

[0113] The electrical device provided in this application embodiment can improve the stability of the wiring harness, reduce the possibility of the wiring harness falling off and damaging the connector, and improve the stability of the battery.

[0114] Embodiments of this application provide a battery box, which includes a box body 10 and a wiring harness bracket 20. The box body 10 has a receiving cavity extending along a first direction X, and a weight-reducing cavity 11 extending through a first side surface 12 of the box body 10. The first side surface 12 intersects the first direction X, which is the same as the height direction of the box body 10. The wiring harness bracket 20 is located outside the receiving cavity, with one end of the wiring harness bracket 20 extending from the first side surface 12 into the weight-reducing cavity 11. At least a portion of the wiring harness bracket 20 located outside the weight-reducing cavity 11 is configured to support a wiring harness 50.

[0115] The wire harness bracket 20 includes a mounting portion 21, a connecting portion 22, a support portion 23, and a limiting plate 24. One end of the mounting portion 21 extends into the weight-reducing cavity 11 from the first side 12, and the other end of the mounting portion 21 is connected to one end of the connecting portion 22. The other end of the connecting portion 22 is connected to the support portion 23, which is located outside the weight-reducing cavity 11. The support portion 23 and the mounting portion 21 are both located on the same side of the connecting portion 22, and the support portion 23 is configured to support the wire harness. The surface of the limiting plate 24 is perpendicular to the second direction Y. The limiting plate 24 is connected to the connecting portion 22, and the limiting plate 24 and the mounting portion 21 are located on opposite sides of the connecting portion 22 along the first direction X.

[0116] The support portion 23 includes a first support arm 231, a bent arm 232, and a second support arm 233. One end of the first support arm 231 is connected to the other end of the connecting portion 22, the other end of the first support arm 231 is connected to one end of the bent arm 232, and the other end of the bent arm 232 is connected to one end of the second support arm 233. The second support arm 233 and the first support arm 231 are both located on the same side of the bent arm 232. The surface of the first support arm 231 is opposite to the second side surface 13, which is adjacent to the first side surface 12 and located on the side of the housing 10 away from the receiving cavity. The plane containing the surface of the second support arm 233 intersects the plane containing the second side surface 13, and the second support arm 233 is inclined towards the first support arm 231. The wire harness bracket 20 includes two mounting portions 21 spaced apart along a second direction Y and two connecting portions 22 connected to each mounting portion 21 in a corresponding manner. The second direction Y is parallel to the first side surface 12 and intersects the first direction X. The support portion 23 is connected to the other end of the two connecting portions 22. The wire harness bracket 20 includes two limiting plates 24, which are respectively connected to the two opposite sides of the two connecting portions 22.

[0117] The second side 13 of the housing 10 has a mounting hole 131. The second side 13 is adjacent to the first side 12 and is located on the side of the housing 10 away from the receiving cavity. The battery box also includes a wiring harness clip 30, one end of which is connected to the mounting hole 131, and the other end of which is located outside the mounting hole 131. The wiring harness clip 30 is configured to allow a wiring harness to pass through.

[0118] In one implementation of this application, the other end of the second support arm 233 is a free end.

[0119] In another implementation of this application, the other end of the second support arm 233 is connected to the other end of the connecting portion 22. The first support arm 231 is connected to the other end of one of the connecting portions 22, and the second support arm 233 is connected to the other end of the other connecting portion 22.

[0120] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery box, characterized in that, The battery box includes: The box (10) has a receiving cavity extending along a first direction X. The box (10) has a weight-reducing cavity (11). The weight-reducing cavity (11) penetrates a first side (12) of the box (10). The first side (12) intersects with the first direction X. The first direction X is the same as the height direction of the box (10). A wire harness bracket (20) is located outside the receiving cavity, one end of which extends from the first side (12) into the weight reduction cavity (11), and at least a portion of the wire harness bracket (20) located outside the weight reduction cavity (11) is configured to support the wire harness. The wire harness bracket (20) includes: Mounting part (21), one end of which extends from the first side (12) into the weight reduction cavity (11); A connecting part (22), one end of which is connected to the other end of the mounting part (21); A support part (23) is connected to the other end of the connecting part (22), and the support part (23) is located outside the weight reduction cavity (11); The support portion (23) and the mounting portion (21) are both located on the same side of the connecting portion (22), and the support portion (23) is configured to support the wire harness.

2. The battery box according to claim 1, characterized in that, The support portion (23) includes: A first support arm (231) is connected at one end to the other end of the connecting part (22); A bent arm (232), one end of which is connected to the other end of the first support arm (231); A second support arm (233) is connected at one end to the other end of the bent arm (232); The second support arm (233) and the first support arm (231) are both located on the same side of the bent arm (232).

3. The battery box according to claim 2, characterized in that, The surface of the first support arm (231) is disposed opposite to the second side (13), the second side (13) is adjacent to the first side (12), and the second side (13) is located on the side of the box (10) away from the receiving cavity. The plane on the surface of the second support arm (233) intersects the plane on the second side (13), and the second support arm (233) is inclined toward the first support arm (231).

4. The battery box according to claim 2 or 3, characterized in that, The wire harness bracket (20) includes two mounting portions (21) spaced apart along the second direction Y and two connecting portions (22) connected to the mounting portions (21) one-to-one. The second direction Y is parallel to the first side (12) and intersects the first direction X. The support portion (23) is connected to the other end of the two connecting portions (22).

5. The battery box according to claim 4, characterized in that, The other end of the second support arm (233) is a free end.

6. The battery box according to claim 4, characterized in that, The other end of the second support arm (233) is connected to the other end of the connecting part (22).

7. The battery box according to claim 6, characterized in that, The first support arm (231) is connected to the other end of one of the two connecting parts (22), and the second support arm (233) is connected to the other end of the other connecting part (22) of the two connecting parts (22).

8. The battery box according to claim 4, characterized in that, The wire harness bracket (20) also includes: The limiting plate (24) has its surface perpendicular to the second direction Y. The limiting plate (24) is connected to the connecting part (22). The limiting plate (24) and the mounting part (21) are located on opposite sides of the connecting part (22) along the first direction X.

9. The battery box according to claim 8, characterized in that, The wire harness bracket (20) includes two limiting plates (24), which are respectively connected to the two opposite sides of the two connecting parts (22).

10. The battery box according to any one of claims 1 to 3, characterized in that, The second side (13) of the housing (10) has a mounting hole (131), the second side (13) is adjacent to the first side (12), and the second side (13) is located on the side of the housing (10) away from the receiving cavity. The battery box also includes: A wire harness clip (30) has one end connected to the mounting hole (131) and the other end located outside the mounting hole (131). The wire harness clip (30) is configured to allow the wire harness to pass through.

11. A battery, characterized in that, Includes the battery box as described in any one of claims 1 to 10.

12. An electrical appliance, characterized in that, The electrical device includes the battery as described in claim 11, the battery being used to provide electrical energy.

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