Battery case, battery and electrical device

Abstract

A battery case, a battery and an electrical device, which relate to the technical field of batteries. The battery case comprises a case body (10) and a wire harness bracket (20). The case body (10) is provided with an accommodating cavity extending in a first direction, and the case body (10) is provided with a weight-reduction cavity (11), wherein the weight-reduction cavity (11) passes through a first side surface (12) of the case body, the first side surface (12) intersecting the first direction, and the first direction being the same as the height direction of the case body (10). The wire harness bracket (20) is located outside the accommodating cavity, one end of the wire harness bracket (20) extends into the weight-reduction cavity (11) from the first side surface (12), and at least part of the wire harness bracket (20) that is located outside the weight-reduction cavity (11) is configured to support a wire harness. The wire harness bracket (20) is mounted and fixed by means of the existing weight-reduction cavity (11) of the battery case, so as to ensure that the wire harness bracket (20) is fixed, and there is no need to provide an additional connecting hole in the battery case for mounting of the wire harness bracket (20), so that the strength of the battery case is not affected, no additional manufacturing process is added, and the battery case is simpler. The mounted and fixed wire harness bracket (20) supports the wire harness, thereby improving the stability of the wire harness and reducing the possibility of the wire harness falling off and damaging a connector.

Description

Battery boxes, batteries and electrical devices

[0001] Cross-references

[0002] This application refers to Chinese Patent Application No. 202410263603.4 filed on March 7, 2024, entitled “Battery Box, Battery and Electrical Device”, which is incorporated into this application in its entirety by reference. Technical Field

[0003] The present application relates to the field of battery technology, and in particular to a battery box, a battery, and an electrical device. Background Art

[0004] 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.

[0005] The battery consists of a battery box and the battery cells located within it. Electrical signals from the battery cells are transmitted via a wiring harness. One end of the wiring harness is connected to the battery cells in the battery box, and the other end is connected to the connector. The wiring harness can sink under the influence of gravity, squeezing the connector and damaging it.

[0006] In the related art, tape is generally used to adhere the wiring harness to the battery box, but the tape is not firmly fixed, and the wiring harness is easy to fall off during transportation and vibration conditions of the battery, causing the wiring harness to squeeze the connector and cause damage to the connector.

[0007] Summary of the Invention

[0008] The present application aims to solve at least one of the technical problems in the background art. To this end, one purpose of the present application is to provide a battery box, a battery, and an electrical device to reduce the compression of the wiring harness on the connector and reduce the possibility of damage to the connector.

[0009] An embodiment of the first aspect of the present application provides a battery box, comprising: a box body, having a accommodating cavity extending along a first direction, the box body having a weight-reducing cavity, the weight-reducing cavity passing through a first side surface of the box body, the first side surface intersecting with the first direction, and the first direction being the same as the height direction of the box body; a wiring harness bracket, located outside the accommodating cavity, one end of the wiring harness bracket extending from the first side surface into the weight-reducing cavity, and at least a portion of the wiring harness bracket located outside the weight-reducing cavity is configured to support the wiring harness.

[0010] In the technical solution of the embodiment of the present application, one end of the wiring harness bracket extends from the first side into the weight-reducing cavity. The wiring harness bracket is installed and fixed through the original weight-reducing cavity of the battery box to ensure the fixation of the wiring harness bracket. At the same time, no additional connection holes are required on the battery box to install the wiring harness bracket, which does not affect the strength of the battery box and does not add additional manufacturing steps, making it simpler. After installation, the wiring harness bracket supports the wiring harness to improve the stability of the wiring harness and reduce the possibility of the wiring harness falling off and damaging the connector.

[0011] In some embodiments, the wire harness bracket includes: a mounting portion, one end of which extends from a first side into the weight-reducing cavity; a connecting portion, one end of which is connected to the other end of the mounting portion; and a supporting portion, which is connected to the other end of the connecting portion and is located outside the weight-reducing cavity. The supporting portion and the mounting portion are located on the same side of the connecting portion, and the supporting portion is configured to support the wire harness. The mounting portion securely mounts the wire harness bracket, and the supporting portion is connected to the other side of the housing, reducing shaking of the supporting portion and thereby improving the stability of the entire wire harness bracket.

[0012] In some embodiments, the support portion includes: a first support arm, one end of the first support arm is connected to the other end of the connecting portion; a bending arm, one end of the bending arm is connected to the other end of the first support arm; a second support arm, one end of the second support arm is connected to the other end of the bending arm; wherein the second support arm and the first support arm are both located on the same side of the bending arm. The second support arm and the first support arm are both located on the same side of the bending arm, so that the support portion forms a U-shaped support structure when viewed from the side, wherein the bending arm is the bottom of the U-shaped support structure, and the second support arm and the first support arm are respectively two side portions of the U-shaped support structure. The wiring harness can be placed in the U-shaped support structure, and the U-shaped support structure has an opening, so that the wiring harness can be easily removed from the U-shaped support structure, which facilitates the installation and removal of the wiring harness.

[0013] In some embodiments, the surface of the first support arm is arranged opposite to the second side surface, the second side surface is adjacent to the first side surface, and the second side surface is located on the side of the box body away from the accommodating cavity, the plane where the surface of the second support arm is located intersects with the plane where the second side surface is located, 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 surface, so that the first support arm can be close to or even fit with the second side surface, reducing the volume occupied by the support portion. The plane where the surface of the second support arm is located intersects with the plane where the second side surface is located, and the second support arm is inclined toward the first support arm, so that the opening of the U-shaped support structure formed by the support portion is smaller, and the wiring harness placed in the U-shaped support structure is less likely to fall off.

[0014] In some embodiments, the wiring harness bracket includes two mounting portions spaced apart along a second direction and two connecting portions connected to the mounting portions in a one-to-one correspondence. The second direction is parallel to the first side surface and intersects the first direction. The support portion is connected to the other ends of the two connecting portions. Providing two mounting portions, each extending into a different weight-reducing cavity, increases the number of connection points between the wiring harness bracket and the battery box, making the connection more stable. Providing two connecting portions simultaneously increases the number of connection points between the support portion and the connecting portion, making the connection more stable.

[0015] In some embodiments, the other end of the second support arm is a free end, which allows the opening of the U-shaped support structure formed by the support portion to be open and not closed, making it easier to place and remove the wiring harness.

[0016] In some embodiments, the other end of the second support arm is connected to the other end of the connecting portion. The other end of the second support arm is connected to the other end of the connecting portion, so 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 along a viewing angle parallel to the second direction, and the wiring harness located within the U-shaped support structure is not easily detached.

[0017] 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 of the two connecting parts. The first support arm and the second support arm are respectively connected to different connecting parts and do not interfere with each other.

[0018] In some embodiments, the wiring harness bracket further comprises a limiting plate, wherein the limiting plate has a surface perpendicular to the second direction and is connected to the connecting portion, with the limiting plate and the mounting portion being located on opposite sides of the connecting portion along the first direction. The limiting plate extends outside the weight-reducing cavity. When the wiring harness bracket moves, the limiting plate abuts against other components of the battery, thereby indicating movement of the wiring harness bracket and improving the stability of the wiring harness bracket.

[0019] In some embodiments, the wiring harness bracket includes two limit plates connected to two opposite sides of the two connecting portions, respectively. The limit plates are connected to two opposite sides of the two connecting portions, so that the first connector can be placed between the two limit plates. When the wiring harness bracket moves in two opposite directions along the second direction, the limit plates can limit the movement of the wiring harness bracket.

[0020] In some embodiments, the second side of the box body has a mounting hole, the second side being adjacent to the first side and located on a side of the box body away from the accommodating cavity. The battery box further comprises a wire 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 wire harness clip being configured to pass the wire harness through. The wire harness clip is provided to further secure the wire harness, thereby improving its stability and reducing the possibility of the wire harness falling off and damaging the connector.

[0021] An embodiment of the second aspect of the present application provides a battery, which includes the battery box in the above embodiment.

[0022] An embodiment of the third aspect of the present application provides an electrical device, which includes the battery in the above embodiment, and the battery is used to provide electrical energy.

[0023] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on the drawings without paying creative work.

[0025] FIG1 is a schematic structural diagram of a vehicle provided in some embodiments of the present application;

[0026] FIG2 is a schematic structural diagram of a battery box according to some embodiments of the present application;

[0027] FIG3 is a schematic diagram of a partial structure of the connection between a box and a wiring harness bracket in some embodiments of the present application;

[0028] FIG4 is a front view of the connection between the box and the wiring harness bracket shown in FIG3 of the present application;

[0029] FIG5 is a schematic structural diagram of a wiring harness support according to some embodiments of the present application;

[0030] FIG6 is a front view of a wiring harness bracket according to some embodiments of the present application;

[0031] FIG7 is a right side view of a wiring harness bracket according to some embodiments of the present application;

[0032] FIG8 is a schematic structural diagram of a battery box according to some other embodiments of the present application;

[0033] FIG9 is a partial structural diagram of the connection between the box and the harness bracket in some other embodiments of the present application;

[0034] FIG10 is a front view of the connection between the box and the wiring harness bracket shown in FIG9 of the present application;

[0035] FIG11 is a schematic structural diagram of a wiring harness bracket according to some other embodiments of the present application;

[0036] FIG12 is a front view of a wiring harness bracket according to some other embodiments of the present application;

[0037] FIG13 is a right side view of a wiring harness bracket according to some other embodiments of the present application.

[0038] Explanation of the accompanying drawings: 1000, vehicle; 100, battery; 200, controller; 300, motor; 10, housing; 11, weight reduction cavity; 12, first side; 13, second side; 131, mounting hole; 20, wiring harness bracket; 21, mounting portion; 22, connecting portion; 23, supporting portion; 231, first support arm; 2311, branch; 232, bending arm; 233, second support arm; 24, limiting plate; 30, wiring harness buckle; 40, end cover; 50, wiring harness; 51, first wiring harness branch; 52, second wiring harness branch; 60, first connector; 70, second connector. DETAILED DESCRIPTION

[0039] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0041] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0042] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0043] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0044] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0045] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limiting the embodiments of the present application.

[0046] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0047] Currently, market developments indicate that power batteries are becoming increasingly widely used. They are not only used in energy storage systems such as hydropower, thermal, wind, and solar power plants, but are also widely used in electric vehicles like electric bicycles, electric motorcycles, and electric vehicles, as well as in military equipment and aerospace. As power battery applications continue to expand, market demand is also growing.

[0048] The battery consists of a battery box and the battery cells located within it. The electrical signals from the battery cells are transmitted via a wiring harness. One end of the wiring harness connects to the battery cells in the battery box, and the other end connects to a connector, which in turn connects to other components in the power-consuming device. When the battery is not yet installed in the power-consuming device, the connector is not fixed and is free-standing. The wiring harness sinks under the influence of gravity, and during transportation and vibration of the battery, the wiring harness may squeeze the connector, causing damage.

[0049] In the related art, to prevent the wiring harness from squeezing the connector, it is necessary to secure the wiring harness, for example by gluing it to the battery case with tape. However, the tape is not securely fixed and can easily fall off during transportation and vibration conditions, causing the wiring harness to squeeze the connector. In other related art solutions, additional holes are punched in the battery case, and then cable ties are passed through the holes to secure the wiring harness. After the cable ties are secured, the excess is cut off, and the remaining cable ties can easily damage other components in the battery. Furthermore, punching additional holes in the battery case can reduce its strength and complicate the process.

[0050] An embodiment of the present application provides a battery box, which includes a box body and a wire harness bracket. The box body has a accommodating cavity extending along a first direction, and the box body has a weight-reducing cavity. The weight-reducing cavity runs through a first side surface of the box body, and the first side surface intersects with the first direction, and the first direction is the same as the height direction of the box body. The wire harness bracket is located outside the accommodating cavity, and one end of the wire harness bracket extends into the weight-reducing cavity from the first side surface. At least a portion of the wire harness bracket located outside the weight-reducing cavity is configured to support the wire harness. Supporting the wire harness by the wire harness bracket ensures the stability of the wire harness. At the same time, the wire harness bracket is installed through the original weight-reducing cavity of the box body, and there is no need to set additional connection holes on the box body to install the wire harness bracket. It will not affect the strength of the battery box, and will not add additional manufacturing processes, which is simpler.

[0051] The battery box disclosed in the embodiments of this application can be used in batteries, which can be used in, but are not limited to, electrical devices such as vehicles, ships, or aircraft. The battery disclosed in this application can be used to form a power supply system for such an electrical device, thereby reducing the possibility of damage to the battery connector and improving the stability of battery performance.

[0052] The present invention provides an electric device that uses a battery as a power source. The electric device may be, but is not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, a battery-powered vehicle, an electric car, a ship, a spacecraft, etc. The electric toy may include a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy, etc. The spacecraft may include an airplane, a rocket, a space shuttle, and a spacecraft, etc.

[0053] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of an electrical device according to an embodiment of the present application.

[0054] Please refer to Figure 1, which is a schematic diagram of the structure of the vehicle provided in some embodiments of the present application. The vehicle 1000 can be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 100 is provided inside the vehicle 1000, and the battery 100 can be provided at the bottom, head or tail of the vehicle 1000. The battery 100 can be used to power the vehicle 1000. For example, the battery 100 can serve as an 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 power the motor 300, for example, for starting, navigating and driving the vehicle 1000.

[0055] In some embodiments of the present application, the battery 100 can serve not only as an operating power source for the vehicle 1000, but also as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0056] An embodiment of the present application provides a battery box, and FIG2 is a schematic structural diagram of a battery box in some embodiments of the present application. FIG3 is a schematic structural diagram of a portion of the connection between the box body and the wiring harness bracket in some embodiments of the present application. FIG4 is a front view of the connection between the box body and the wiring harness bracket shown in FIG3 of the present application. Referring to FIG2 to FIG4, the battery box includes a box body 10 and a wiring harness bracket 20. The box body 10 has a accommodating cavity extending along a first direction X, and the box body 10 has a weight reduction cavity 11. The weight reduction cavity 11 passes through a first side surface 12 of the box body 10. The first side surface 12 intersects with the first direction X, and the first direction X is the same as the height direction of the box body 10. The wiring harness bracket 20 is located outside the accommodating cavity, and one end of the wiring harness bracket 20 extends from the first side surface 12 into the weight reduction cavity 11. At least the portion of the wiring harness bracket 20 located outside the weight reduction cavity 11 is configured to support the wiring harness 50.

[0057] The battery includes a battery box and a battery cell. The battery cell is housed in the battery box, and the battery box is used to provide a storage space for the battery cell. The battery box can adopt a variety of structures. In some embodiments, the battery box may include a first part and a second part, the first part and the second part covering each other, and the first part and the second part jointly define a storage space for accommodating the battery cell. The first part may be a hollow structure with one end open, and the second part may be a plate-like structure, and the second part covers the open side of the first part, so that the first part and the second part jointly define a storage space; or the first part and the second part may also be hollow structures with one side open, and the open side of the first part covers the open side of the second part. Of course, the battery box formed by the first part and the second part can be of various shapes, such as a cylinder, a cuboid, etc. Figure 2 is only an example. In some embodiments of the present application, referring to FIG2 , the first part may be a box body 10, and the second part may be an end cover 40. The end cover 40 covers the opening of the accommodating cavity of the box body 10, and the battery cell is located in the accommodating cavity. As shown in FIG2 , since the end cover 40 covers the accommodating cavity of the box body 10, the accommodating cavity is not shown in the drawings of the embodiments of the present application.

[0058] In an embodiment of the present application, the first side 12 can be a side facing the opening of the accommodating cavity, so that when the end cover 40 covers the opening of the accommodating cavity, the end cover 40 can also be pressed on the end of the wiring harness bracket 20 extending from the first side 12 into the weight reduction cavity 11 to fix the wiring harness bracket 20.

[0059] In the embodiment of the present application, a straight line parallel to the height direction of the box body 10 passes through the opening of the accommodating cavity.

[0060] In other implementations, the first side 12 may also be located at other positions, and then the wiring harness bracket 20 may be fixed by other means, for example, bonding the wiring harness bracket 20 to the first side 12, or making the wiring harness bracket 20 interference fit with the weight reduction cavity 11, thereby fixing the wiring harness bracket 20.

[0061] In a battery, there can be multiple battery cells, and the multiple battery cells can be connected in series, in parallel, or in a mixed connection. Mixed connection means that multiple battery cells are connected in series and in parallel. Multiple battery cells can be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the multiple battery cells is accommodated in a battery box; of course, the battery can also be a battery module formed by first connecting multiple battery cells in series, in parallel, or in a mixed connection, and then the multiple battery modules are connected in series, in parallel, or in a mixed connection to form a whole, and accommodated in a battery box. The battery can also include other structures. For example, the battery can also include a busbar component for achieving 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 thereto. The battery cell can be cylindrical, flat, rectangular, or in other shapes.

[0062] The weight-reducing cavity 11 is a cavity in the box body 10, which can reduce the weight of the box body 10 and increase the energy density of the battery. Secondly, when the box body 10 is squeezed, the weight-reducing cavity 11 can slow down the transfer of energy, thereby reducing the impact force on the battery cells located in the box body 10 and improving the stability of the battery.

[0063] The number of weight-reducing cavities 11 is not limited and can be set according to demand. The shape of the weight-reducing cavity 11 is not limited. For example, the shape of the weight-reducing cavity 11 can be a cylinder, a prism, or other irregular shapes. In the embodiment of the present application, as shown in Figures 2 and 3, the shape of the weight-reducing cavity 11 can include a triangular prism. Compared with weight-reducing cavities 11 of other shapes, the triangular prism weight-reducing cavity 11 has a regular shape and is easy to manufacture. The triangular prism has better stability, which can improve the strength of the battery box.

[0064] Figure 2 illustrates the shape of a battery box according to the present application. In Figure 2 , the battery box is rectangular in shape. The box body 10 may include two end panels and two side panels, which together form a similarly rectangular accommodating cavity. One end of the wiring harness bracket 20 extends into the weight-reducing cavity of the end panels. In other implementations, one end of the wiring harness bracket 20 may also extend into the weight-reducing cavity of the side panels.

[0065] For example, when one end of the wiring harness bracket 20 extends into the weight-reducing cavity of the end plate, the first side surface 12 may be one of the surfaces of the end plate.

[0066] As shown in Figure 2, 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 the battery cells located in the battery box, and the second connector 70 is used to connect to other components in the power-consuming device. For example, the second connector 70 is connected to the controller 200, so that the power-consuming device can understand the status of the battery cells and control the battery cells. For example, the first connector 60 can be installed on the battery box to ensure the stability of the first connector 60; when the battery is not installed in the power-consuming device, the second connector 70 is free to place. When the battery is installed in the power-consuming device, the second connector 70 can be installed on the power-consuming device to ensure the stability of the second connector 70.

[0067] 2 to 4 , the wiring harness 50 includes a first wiring harness branch 51 and a second wiring harness branch 52. Both the first wiring harness branch 51 and the second wiring harness branch 52 may be supported by the wiring harness support 20, or only one of the first wiring harness branch 51 and the second wiring harness branch 52 may be supported by the wiring harness support 20. Of course, in other implementations, the wiring harness 50 may also include other numbers of wiring harness branches, and different numbers of wiring harness branches may be placed on the wiring harness support 20 as needed to support the wiring harness.

[0068] In an embodiment of the present 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, which can be characterized as one portion of the wire harness bracket 20 located outside the weight reduction cavity 11 can support the wire harness 50, and another portion of the wire harness bracket 20 located outside the weight reduction cavity 11 can also have other functions, such as being used for connection.

[0069] In the embodiment of the present application, one end of the wiring harness bracket 20 extends from the first side surface 12 into the weight-reducing cavity 11. The wiring harness bracket 20 is installed and fixed through the original weight-reducing cavity 11 of the battery box to ensure the fixation of the wiring harness bracket 20. At the same time, no additional connection holes are required on the battery box to install the wiring harness bracket, which does not affect the strength of the battery box and does not add additional manufacturing steps, making it simpler. After being installed and fixed, the wiring harness bracket 20 supports the wiring harness to improve the stability of the wiring harness and reduce the possibility of the wiring harness falling off and damaging the connector.

[0070] In the embodiment of the present application, the wire harness bracket 20 does not need to be cut off, thereby reducing the possibility of the wire harness bracket 20 damaging other components in the battery and improving the reliability of the battery.

[0071] According to some embodiments of the present application, FIG5 is a schematic structural diagram of a wiring harness bracket according to some embodiments of the present application.

[0072] Figure 6 is a front view of the wire harness bracket of some embodiments of the present application. Figure 7 is a right view of the wire harness bracket of some embodiments of the present application. In combination with Figures 2 to 7, the wire harness bracket 20 includes a mounting portion 21, a connecting portion 22 and a supporting portion 23. One end of the mounting portion 21 extends into the weight reduction cavity 11 from the first side surface 12, the other end of the mounting portion 21 is connected to one end of the connecting portion 22, and the other end of the connecting portion 22 is connected to the supporting portion 23, and the supporting portion 23 is located outside the weight reduction cavity 11. Among them, the supporting portion 23 and the mounting portion 21 are both located on the same side of the connecting portion 22, and the supporting portion 23 is configured to support the wire harness.

[0073] In an embodiment of the present application, the mounting portion 21 is used to fix the wiring harness bracket 20 . Exemplarily, the mounting portion 21 may be a strip-shaped support rod, so that one end of the mounting portion 21 may extend into the weight reduction cavity 11 from the first side 12 .

[0074] In the embodiment of the present application, the connecting portion 22 is used to connect the mounting portion 21 and the supporting portion 23. For example, the connecting portion 22 can be a connecting plate or a connecting rod. The connecting portion 22 can be aligned with the first side surface 12 to reduce shaking of the connecting portion 22 and improve the stability of the connecting portion 22. In other implementations, the connecting portion 22 can also not be aligned with the first side surface 12.

[0075] In the embodiment of the present application, the support portion 23 supports the wire harness to reduce the possibility of the wire harness falling off and damaging the connector.

[0076] In an embodiment of the present application, referring to Figures 5 and 7, the support portion 23 and the mounting portion 21 are both located on the same side of the connecting portion 22, so that the support portion 23, the mounting portion 21 and the connecting portion 22 form a hook-shaped structure, the support portion 23 is located in the weight reduction cavity 11, and the support portion 23 is connected to the other side of the box body to reduce the shaking of the support portion 23 and improve the stability of the support portion 23.

[0077] In an embodiment of the present application, the mounting portion 21, the connecting portion 22 and the supporting portion 23 may be integrally formed; or the mounting portion 21, the connecting portion 22 and the supporting portion 23 may be separately manufactured and then connected together. For example, the mounting portion 21, the connecting portion 22 and the supporting portion 23 may be connected together by welding.

[0078] In an embodiment of the present application, the wiring harness bracket 20 can be fixedly installed through the mounting portion 21, and the support portion 23 is connected to the other side of the box body, which can reduce the shaking of the support portion 23, thereby improving the stability of the entire wiring harness bracket 20.

[0079] According to some embodiments of the present application, referring to Figures 5 to 7 , 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.

[0080] In an embodiment of the present application, the first support arm 231, the bending arm 232 and the second support arm 233 can be integrally formed; or the first support arm 231, the bending arm 232 and the second support arm 233 can be made separately and then connected together. For example, the first support arm 231, the bending arm 232 and the second support arm 233 can be connected together by welding.

[0081] In an embodiment of the present application, the number of the first support arm 231, the bending arm 232 and the second support arm 233 can be set according to requirements. For example, the wiring harness bracket 20 may include a first support arm 231, two bending arms 232 and two second support arms 233, one end of the two bending arms 232 is connected to the first support arm 231, and the other end of the two bending arms 232 is connected to the two second support arms 233 one by one.

[0082] In the embodiment of the present application, the second support arm 233 and the first support arm 231 are both located on the same side of the bent arm 232, so that the support portion 23 forms a U-shaped support structure when viewed from the side (for example, the perspective shown in FIG7 ), 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 side portions of the U-shaped support structure. A wiring harness can be placed within the U-shaped support structure, and the U-shaped support structure has an opening that allows the wiring harness to be easily removed from the U-shaped support structure, facilitating installation and removal of the wiring harness.

[0083] According to some embodiments of the present application, in combination with Figures 2 to 7, the surface of the first support arm 231 is arranged opposite to the second side surface 13, the second side surface 13 is adjacent to the first side surface 12, and the second side surface 13 is located on the side of the box body 10 away from the accommodating cavity, the plane where the surface of the second support arm 233 is located intersects with the plane where the second side surface 13 is located, and the second support arm 233 is inclined toward the first support arm 231.

[0084] In the embodiment of the present application, both the first support arm 231 and the second support arm 233 may be plate-like structures. The plate-like structures are relatively thin, which can reduce the volume occupied by the first support arm 231 and the second support arm 233, thereby increasing 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.

[0085] In the embodiment of the present application, the plane on which the surface of the first support arm 231 lies is parallel to the plane on which the second side surface 13 lies, allowing the first support arm 231 to approach or even fit closely with the second side surface 13, thereby reducing the volume occupied by the support portion 23. The plane on which the surface of the second support arm 233 lies intersects with the plane on which the second side surface 13 lies, and the second support arm 233 is tilted toward the first support arm 231, resulting in a smaller opening in the U-shaped support structure formed by the support portion 23, making it less likely that a wiring harness placed within the U-shaped support structure will fall out.

[0086] In the embodiment of the present application, the support portion 23 may be made of an elastic material, so that when placing the wiring harness, the opening of the U-shaped support structure may be opened to facilitate placement of the wiring harness.

[0087] According to some embodiments of the present application, in combination with Figures 5 to 7, the wiring harness bracket 20 includes two mounting portions 21 arranged at intervals along the second direction Y and two connecting portions 22 connected to the mounting portions 21 in a one-to-one correspondence. The second direction Y is parallel to the first side surface 12, and the second direction Y intersects with the first direction X. The support portion 23 is connected to the other ends of the two connecting portions 22.

[0088] In some embodiments of the present application, the second direction Y is perpendicular to the first direction X. In other embodiments of the present application, the second direction Y may not be perpendicular to the first direction X.

[0089] In the embodiment of the present application, the two mounting portions 21 extend into different weight-reducing cavities 11 respectively.

[0090] In some embodiments of the present application, referring to FIG. 5 and FIG. 6 , the support portion 23 may include two branches 2311 , and the two branches 2311 are respectively connected to the two connection portions 22 in a one-to-one correspondence.

[0091] In other embodiments of the present application, the two connecting portions 22 may be connected to the side edges of the supporting portion 23 extending along the second direction Y.

[0092] In the embodiment of the present application, two mounting portions 21 are provided, each extending into a different weight-reducing cavity 11, thereby increasing the number of connection points between the wiring harness bracket 20 and the battery box, and making the connection more stable. Furthermore, two connecting portions 22 are provided, thereby increasing the number of connection points between the support portion 23 and the connecting portion 22, and making the connection more stable.

[0093] According to some embodiments of the present application, with reference to FIG. 2 to FIG. 7 , the other end of the second support arm 233 is a free end.

[0094] 5 and 7 , the free end of the second support arm 233 can be curled inward, so that the side of the second support arm 233 is also curled inward, thereby reducing the possibility of the side of the second support arm 233 damaging other components in the battery and improving the reliability of the battery.

[0095] In the embodiment of the present application, the other end of the second support arm 233 is a free end, so that the opening of the U-shaped support structure formed by the support portion 23 is open and not closed, which is convenient for placing and removing the wire harness.

[0096] FIG2 to FIG7 show one of the wiring harness brackets of the present application. In other implementations, the wiring harness bracket may also be in other forms.

[0097] Figure 8 is a schematic diagram of the structure of the battery box of other embodiments of the present application. Figure 9 is a schematic diagram of the partial structure of the connection between the box body and the wiring harness bracket of other embodiments of the present application. Figure 10 is a front view of the connection between the box body and the wiring harness bracket shown in Figure 9 of the present application. Figure 11 is a schematic diagram of the structure of the wiring harness bracket of other embodiments of the present application. Figure 12 is a front view of the wiring harness bracket of other embodiments of the present application. Figure 13 is a right view of the wiring harness bracket of other embodiments of the present 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 portion 22.

[0098] In an embodiment of the present application, the other end of the second support arm 233 is connected to the other end of the connecting portion 22, so that the opening of the U-shaped support structure formed by the support portion 23 is closed, that is, the U-shaped support structure is closed along a perspective parallel to the second direction Y (for example, the perspective shown in Figure 13), and the wiring harness located in the U-shaped support structure is not easy to fall off.

[0099] According to some embodiments of the present application, in conjunction with Figures 11 to 13, the first support arm 231 is connected to the other end of one connection part 22 of the two connection parts 22, and the second support arm 233 is connected to the other end of the other connection part 22 of the two connection parts 22.

[0100] In the embodiment of the present application, the first support arm 231 and the second support arm 233 are respectively connected to different connecting parts 22 and do not interfere with each other.

[0101] According to some embodiments of the present application, in combination with Figures 2 to 7 and Figures 8 to 13, the wiring harness bracket 20 also includes a limit plate 24, the plate surface of the limit plate 24 is perpendicular to the second direction Y, the limit plate 24 is connected to the connecting portion 22, and the limit plate 24 and the mounting portion 21 are respectively located on opposite sides of the connecting portion 22 along the first direction X.

[0102] 3 and 5 , the limiting plate 24 and the mounting portion 21 are respectively located on opposite sides of the connecting portion 22 along the first direction X. When the wiring harness bracket 20 is installed in the battery box, the mounting portion 21 extends into the weight reduction cavity 11 and the limiting plate 24 extends out of the weight reduction cavity 11 .

[0103] In an embodiment of the present application, the limiting plate 24 extends out of the weight reduction cavity 11 . When the wiring harness bracket 20 moves, the limiting plate 24 will counteract other components of the battery, thereby indicating the movement of the wiring harness bracket 20 and improving the stability of the wiring harness bracket 20 .

[0104] For example, the limiting plate 24 may be provided at a position corresponding to the first connector 60 , and the movement of the harness bracket 20 is limited by the first connector 60 abutting against the limiting plate 24 .

[0105] According to some embodiments of the present application, in conjunction with FIG. 5 to FIG. 7 and FIG. 11 to FIG. 13 , the wiring harness bracket 20 includes two limiting plates 24 , and the two limiting plates 24 are respectively connected to two opposite sides of the two connecting portions 22 .

[0106] In an embodiment of the present application, the two opposite sides of the two connecting parts 22 are connected to the limiting plates 24, so that the first connector 60 can be placed between the two limiting plates 24. When the wiring harness bracket 20 moves in two opposite directions along the second direction Y, the limiting plates 24 can limit the movement of the wiring harness bracket 20.

[0107] According to some embodiments of the present application, referring to Figures 2 to 4 and 8 to 10 , 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 accommodating cavity. The battery case 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.

[0108] The second side surface 13 of the box body 10 has a plurality of mounting holes 131 , which can also reduce the weight of the box body. One of the mounting holes 131 can be used as a mounting hole for the wire harness buckle 30 .

[0109] In the embodiment of the present application, one end of the wiring harness buckle 30 is interference fit with the mounting hole 131, which makes the installation method simpler and does not require additional connecting components, thereby having little impact on the weight of the battery box.

[0110] In some embodiments of the present application, the other end of the wire harness buckle 30 may include a through hole for the wire harness to pass through; in other embodiments of the present application, the other end of the wire harness buckle 30 may include a through slot for the wire harness to pass through.

[0111] In the embodiment of the present application, a wire harness buckle 30 is provided to fix the wire harness again, thereby improving the stability of the wire harness and reducing the possibility of the wire harness falling off and damaging the connector.

[0112] An embodiment of the present application provides a battery, which includes the battery box of any one of the above embodiments.

[0113] The battery provided in the embodiment of the present application 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] An embodiment of the present application provides an electrical device, which includes the battery in the above embodiment, and the battery is used to provide electrical energy.

[0115] The electrical device provided in the embodiment of the present application 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.

[0116] An embodiment of the present application provides a battery box, comprising a box body 10 and a wiring harness support 20. The box body 10 has a housing 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 support 20 is located outside the housing cavity, with one end of the wiring harness support 20 extending from the first side surface 12 into the weight-reducing cavity 11. At least the portion of the wiring harness support 20 located outside the weight-reducing cavity 11 is configured to support a wiring harness 50.

[0117] 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 reduction cavity 11 from the first side surface 12, 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, and the support portion 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. The plate 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 respectively located on opposite sides of the connecting portion 22 along the first direction X.

[0118] 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 disposed opposite the second side surface 13, which is adjacent to the first side surface 12 and is located on the side of the housing 10 away from the accommodating cavity. The plane on which the surface of the second support arm 233 lies intersects with the plane on which the second side surface 13 lies, and the second support arm 233 is inclined toward the first support arm 231. The harness bracket 20 includes two mounting portions 21 spaced apart along a second direction Y and two connecting portions 22 connected one-to-one with the mounting portions 21. 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 ends of the two connecting portions 22. The harness bracket 20 includes two limiting plates 24, which are respectively connected to two opposite sides of the two connecting portions 22.

[0119] The second side 13 of the case 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 case 10 away from the accommodating cavity. The battery case 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 pass the wiring harness through.

[0120] In one implementation of the present application, the other end of the second support arm 233 is a free end.

[0121] In another embodiment of the present invention, 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 connecting portion 22, and the second support arm 233 is connected to the other end of the other connecting portion 22.

[0122] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A battery box, comprising: A 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) passes through a first side surface (12) of the box (10), the first side surface (12) intersects with the first direction X, and the first direction X is the same as the height direction of the box (10); A wiring harness bracket (20) is located outside the accommodating cavity, one end of the wiring harness bracket (20) extends from the first side surface (12) into the weight reduction cavity (11), and at least a portion of the wiring harness bracket (20) located outside the weight reduction cavity (11) is configured to support the wiring harness.

2. The battery box according to claim 1, wherein: The wiring harness support (20) comprises: a mounting portion (21), one end of the mounting portion (21) extending from the first side surface (12) into the weight-reducing cavity (11); a connecting portion (22), one end of the connecting portion (22) being connected to the other end of the mounting portion (21); a supporting portion (23), the supporting portion (23) being connected to the other end of the connecting portion (22), and the supporting portion (23) being located outside the weight-reducing cavity (11); The supporting portion (23) and the mounting portion (21) are both located on the same side of the connecting portion (22), and the supporting portion (23) is configured to support a wiring harness.

3. The battery box according to claim 2, wherein: The support portion (23) comprises: a first supporting arm (231), one end of the first supporting arm (231) being connected to the other end of the connecting portion (22); a bending arm (232), one end of the bending arm (232) being connected to the other end of the first supporting arm (231); a second supporting arm (233), one end of the second supporting arm (233) being connected to the other end of the bending arm (232); Wherein, the second support arm (233) and the first support arm (231) are both located on the same side of the bending arm (232).

4. The battery box according to claim 3, wherein: The surface of the first support arm (231) is arranged opposite to the second side surface (13), the second side surface (13) is adjacent to the first side surface (12), and the second side surface (13) is located on the side of the box body (10) away from the accommodating cavity, the plane where the surface of the second support arm (233) is located intersects with the plane where the second side surface (13) is located, and the second support arm (233) is arranged to be inclined toward the first support arm (231).

5. The battery box according to claim 3 or 4, wherein: The wiring harness bracket (20) includes two mounting portions (21) spaced apart along a second direction Y and two connecting portions (22) connected to the mounting portions (21) in a one-to-one correspondence. The second direction Y is parallel to the first side surface (12), and the second direction Y intersects with the first direction X. The supporting portion (23) is connected to the other ends of the two connecting portions (22).

6. The battery box according to any one of claims 3 to 5, wherein: The other end of the second supporting arm (233) is a free end.

7. The battery box according to claim 5, wherein: The other end of the second supporting arm (233) is connected to the other end of the connecting portion (22).

8. The battery box according to claim 7, wherein: The first support arm (231) is connected to the other end of one connection part (22) of the two connection parts (22), and the second support arm (233) is connected to the other end of the other connection part (22) of the two connection parts (22).

9. The battery box according to any one of claims 5 to 8, wherein: The wiring harness support (20) further comprises: A limiting plate (24), the plate 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 respectively located on opposite sides of the connecting portion (22) along the first direction X.

10. The battery box according to claim 9, wherein: The wiring harness bracket (20) comprises two limiting plates (24), and the two limiting plates (24) are respectively connected to two opposite side edges of the two connecting parts (22).

11. The battery box according to any one of claims 1 to 10, wherein: The second side surface (13) of the box body (10) has a mounting hole (131), the second side surface (13) is adjacent to the first side surface (12), and the second side surface (13) is located on a side of the box body (10) away from the accommodating cavity, and the battery box further comprises: A wire harness buckle (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), and the wire harness buckle (30) is configured to allow the wire harness to pass through.

12. A battery comprising the battery case according to any one of claims 1 to 11.

13. An electrical device comprising the battery according to claim 12, wherein the battery is used to provide electrical energy.

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