Battery box body, battery and power utilization device

Abstract

The utility model relates to the technical field of batteries, in particular to a battery box body, a battery and an electric device. The battery box body comprises a lower box body and a plurality of connecting pieces, the plurality of connecting pieces are arranged on the peripheral side of the lower box body at intervals, the connecting pieces are arranged on the lower box body in a penetrating manner, are in threaded connection with the bracket through first fastening pieces, and are made of steel materials. By arranging the connecting piece made of the steel material, the torque transmission efficiency can be remarkably improved, torque attenuation is avoided, plastic deformation and thread abrasion of the lower box body at the bolt fastening position are reduced, and the service life is prolonged; the structure is simple, and the production cost is reduced; disassembly, assembly and maintenance are convenient, and the maintenance cost is reduced. According to the battery, by applying the battery box body, plastic deformation and thread abrasion of the lower box body at the bolt fastening position can be avoided, the service life of the battery is prolonged, and the maintenance and production cost is reduced. By applying the battery, the service life of the power utilization device is ensured, and the maintenance and production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a battery box, a battery, and an electrical device. Background Technology

[0002] Electric vehicles are vehicles powered by batteries, which provide electrical energy. A power regulator controls the current to drive an electric motor, which in turn drives the wheels via a power transmission system. These vehicles meet all road traffic and safety regulations. Compared to internal combustion engine vehicles, electric vehicles are characterized by simpler structure, environmental friendliness and energy efficiency, smoother driving, lower noise, and lower operating costs.

[0003] Electric vehicles consist of a frame and a battery. The battery includes a battery housing, which is bolted to the frame's support. Due to the large torque and stress exerted on the bolts, the fastening points are prone to plastic deformation and thread wear, leading to torque attenuation and affecting the battery housing's robustness and lifespan.

[0004] Therefore, there is an urgent need for a battery housing, battery, and power supply device to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a battery box, a battery, and an electrical device to solve the problem in the prior art where thread wear easily occurs at the bolt fastening position between the battery box and the bracket, leading to torque attenuation.

[0006] To achieve the above objectives, the following technical solution is provided:

[0007] A battery housing, comprising:

[0008] lower box;

[0009] Multiple connectors are spaced apart on the periphery of the lower housing. The connectors pass through the lower housing and are threadedly connected to the bracket via a first fastener. The connectors are made of steel.

[0010] As an optional solution, the connector includes:

[0011] The abutting part abuts against the lower housing;

[0012] The first connecting part is connected to the abutting part. The lower housing is provided with a through hole. The first connecting part passes through the through hole and is connected to the bracket by the first fastener.

[0013] As an optional solution, the through hole is a non-circular hole, and the first connecting part is adapted to the through hole.

[0014] As an optional solution, the lower housing is provided with a sinkhole, and the abutment part is located in the sinkhole.

[0015] As an optional solution, the settling tank is a non-circular tank, and the abutting part is adapted to the settling tank.

[0016] As an optional solution, the battery housing also includes:

[0017] The upper housing and multiple second fasteners are provided. Multiple second connecting parts are provided at intervals on the periphery of the lower housing. The second fasteners pass through the upper housing and are connected to the corresponding second connecting parts.

[0018] As an optional solution, part of the second connecting portion is located within the settling trough, and the abutting portion is provided with a plurality of clearance holes, with the second connecting portion located within the settling trough passing through the corresponding clearance holes.

[0019] As an optional option, the lower housing is made of aluminum alloy.

[0020] A battery includes a battery cell and a battery housing as described above, wherein the battery cell is disposed within the battery housing.

[0021] An electrical device includes a device body and the aforementioned battery, the battery being configured to supply power to the device body.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] The battery box provided by this utility model, by setting a connector made of steel to connect to the bracket of the vehicle frame, can significantly improve torque transmission efficiency and avoid torque attenuation; reduce plastic deformation and thread wear of the aluminum alloy lower box at the bolt fastening position, and extend service life; the structure is simple, without increasing the wall thickness of the lower box or adopting complex heat treatment processes, thus reducing production costs; the connector is threaded to the bracket through the first fastener, which is convenient for disassembly and assembly, and thus convenient for maintenance and replacement, reducing maintenance costs.

[0024] The battery provided by this utility model, by applying the above-mentioned battery housing, can avoid plastic deformation and thread wear of the lower housing at the bolt fastening position, thereby improving the battery's service life and reducing maintenance and production costs.

[0025] The electrical device provided by this utility model, by using the aforementioned battery, ensures the service life of the electrical device and reduces maintenance and production costs. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0027] Figure 1 This is a structural schematic diagram of the lower housing provided in an embodiment of the present utility model;

[0028] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0029] Figure 3 This is a partial structural diagram of the lower housing provided in an embodiment of the present utility model;

[0030] Figure 4 A first view of the first connector provided in an embodiment of this utility model;

[0031] Figure 5 A second view of the first connector provided in an embodiment of this utility model;

[0032] Figure 6 A first view of the second connector provided in an embodiment of this utility model;

[0033] Figure 7 A second view of the second connector provided in an embodiment of the present utility model.

[0034] Figure label:

[0035] 100. Battery casing;

[0036] 10. Lower housing; 11. Through hole; 12. Settlement trough; 13. Second connecting part; 131. Second connecting hole;

[0037] 20. Connector; 21. Abutment part; 211. Clearance hole; 22. First connecting part; 221. First connecting hole. Detailed Implementation

[0038] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0039] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0040] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0042] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0043] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0044] This embodiment provides an electrical device, which includes a main body and a battery. The battery provides electrical energy to the main body, enabling the main body to automatically complete preset actions using electrical energy, ensuring good performance of the main body, and guaranteeing the service life and safety performance of the device.

[0045] Specifically, the main body of the electrical device can be a vehicle, mobile phone, portable device, laptop, ship, spacecraft, electric toy, or power tool, etc. Vehicles can be gasoline-powered cars, natural gas-powered cars, or new energy vehicles; new energy vehicles can be pure electric vehicles or hybrid electric vehicles, etc.; spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc.; electric toys include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc.; power tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, or electric planers, etc. This embodiment does not limit the main body of the aforementioned electrical device.

[0046] For ease of explanation, an embodiment of the electrical device described herein is a vehicle. The vehicle includes a frame and a battery. The battery includes a battery housing and battery cells. The battery cells are disposed within the battery housing, and the battery housing provides support and protection for the battery cells. The battery housing is mounted on a bracket of the frame using a first fastener to achieve a stable connection between the battery housing and the frame.

[0047] Optionally, the first fastener is a bolt, which passes through the battery box and is threadedly connected to the bracket.

[0048] Optionally, such as Figures 1-2 As shown, the battery housing 100 includes a lower housing 10, an upper housing (not shown in the figure), and a plurality of second fasteners. The lower housing 10 has a plurality of second connecting parts 13 spaced apart on its periphery. The second fasteners pass through the upper housing and are connected to the corresponding second connecting parts 13 to ensure a stable connection between the lower housing 10 and the upper housing.

[0049] Optionally, the second fastener is a bolt, and the second connecting part 13 is provided with a second connecting hole 131. The second connecting hole 131 is provided with an internal thread, and the bolt is threadedly connected to the second connecting part 13, which makes the connection stable and easy to disassemble and assemble.

[0050] To reduce the weight of the battery box 100 and ensure the vehicle's lightweight design, both the lower box 10 and the upper box are made of aluminum alloy, which has advantages such as being lightweight, high-strength, and having good corrosion resistance. Optionally, both the lower box 10 and the upper box are manufactured by casting, which has advantages such as low production cost and high dimensional accuracy.

[0051] During use, existing battery enclosures are prone to plastic deformation and thread wear at bolt fastening points due to the large torque and stress they bear, resulting in torque attenuation and affecting the robustness and service life of the battery enclosure.

[0052] To solve the above problems, such as Figures 1-3 As shown, the battery box 100 provided in this embodiment also includes a plurality of connectors 20. The plurality of connectors 20 are spaced apart on the periphery of the lower box 10. The connectors 20 pass through the lower box 10 and are threadedly connected to the bracket by a first fastener. The connectors 20 are made of steel.

[0053] By setting a steel connector 20 to connect to the frame bracket, torque transmission efficiency can be significantly improved and torque attenuation can be avoided; plastic deformation and thread wear of the aluminum alloy lower housing 10 at the bolt fastening position can be reduced, thus extending service life; the structure is simple, without increasing the wall thickness of the lower housing 10 or using complex heat treatment processes, thus reducing production costs; the connector 20 is threaded to the bracket through the first fastener, which is convenient for disassembly and assembly, and thus convenient for maintenance and replacement, reducing maintenance costs.

[0054] Specifically, such as Figure 4 and Figure 5 As shown, the connector 20 includes a first connector, which includes an abutment portion 21 and a first connecting portion 22. The abutment portion 21 abuts against the lower housing 10, and the first connecting portion 22 is connected to the abutment portion 21. The lower housing 10 is provided with a through hole 11, and the first connecting portion 22 passes through the through hole 11. The first connecting portion 22 is connected to the bracket through a first fastener to facilitate the quick installation of the lower housing 10 and the bracket.

[0055] like Figure 6 and Figure 7As shown, the connector 20 further includes a second connector, which includes an abutment portion 21 and two first connecting portions 22. The two first connecting portions 22 are arranged at intervals along the length direction of the abutment portion 21 to improve the connection effect between the second connector and the bracket. In other embodiments, the number of first connecting portions 22 may be three, four, or more.

[0056] like Figure 1 As shown, multiple first connectors are arranged at intervals along the length of the lower housing 10, and second connectors are arranged on both sides of the multiple first connectors along the length of the lower housing 10, so as to reduce the amount of second connectors as much as possible while ensuring the connection strength between the lower housing 10 and the bracket, thereby reducing costs.

[0057] Specifically, the first connecting part 22 is provided with a first connecting hole 221, the first connecting hole 221 is provided with an internal thread, the first fastener is provided with an external thread, and the first fastener passes through the bracket of the frame and is threadedly connected to the first connecting part 22, so that the connection is stable and easy to disassemble and assemble.

[0058] Optionally, the abutment portion 21 and the first connecting portion 22 are integrally formed to improve the overall strength of the connector 20.

[0059] Optionally, the through hole 11 is a non-circular hole, and the first connecting part 22 is adapted to the through hole 11 to improve the torsional strength of the first connecting part 22 and prevent the first connecting part 22 from rotating relative to the axis of the through hole 11.

[0060] Optionally, the lower housing 10 is provided with a recess 12, and the abutment part 21 is located in the recess 12. By providing the recess 12 and placing the abutment part 21 in the recess 12, the abutment part 21 is prevented from occupying the space in the height direction of the battery housing 100, which helps to miniaturize the design of the battery housing 100.

[0061] Optionally, the sink 12 is a non-circular sink, and the abutment portion 21 is adapted to the sink 12 to improve the torsional strength of the abutment portion 21 and prevent the abutment portion 21 from rotating relative to the axis of the sink 12.

[0062] Optionally, some of the second connecting parts 13 are located in the sink 12, and the abutting part 21 is provided with a plurality of clearance holes 211. The second connecting parts 13 located in the sink 12 pass through the corresponding clearance holes 211. The clearance holes 211 realize the clearance function of the second connecting parts 13, so as to avoid interference between the second connecting parts 13 and the abutting part 21.

[0063] Note that in the description of this specification, the references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0064] The above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention. The scope of the present invention is determined by the scope of the appended claims.

Claims

1. A battery housing, characterized in that, include: Lower box (10); Multiple connectors (20) are spaced apart on the periphery of the lower housing (10). The connectors (20) pass through the lower housing (10) and are threadedly connected to the bracket by a first fastener. The connectors (20) are made of steel. The connector (20) includes: The abutting part (21) abuts against the lower housing (10); The first connecting part (22) is connected to the abutting part (21). The lower box (10) is provided with a through hole (11). The first connecting part (22) passes through the through hole (11). The first connecting part (22) is connected to the bracket through the first fastener. The lower housing (10) is provided with a sinkhole (12), and the abutment part (21) is located in the sinkhole (12); The sink (12) is a non-circular sink, and the abutment part (21) is adapted to the sink (12).

2. The battery housing according to claim 1, characterized in that, The through hole (11) is a non-circular hole, and the first connecting part (22) is adapted to the through hole (11).

3. The battery housing according to claim 1, characterized in that, The battery housing also includes: The upper housing and multiple second fasteners are provided. Multiple second connecting parts (13) are provided at intervals on the periphery of the lower housing (10). The second fasteners pass through the upper housing and are connected to the corresponding second connecting parts (13).

4. The battery housing according to claim 3, characterized in that, Part of the second connecting part (13) is located in the sink (12), and the abutting part (21) is provided with a plurality of clearance holes (211). The second connecting part (13) located in the sink (12) passes through the corresponding clearance hole (211).

5. The battery housing according to any one of claims 1-4, characterized in that, The lower housing (10) is made of aluminum alloy.

6. A battery, comprising a cell, characterized in that, It also includes a battery housing as described in any one of claims 1-5, wherein the battery cell is disposed within the battery housing.

7. An electrical appliance, comprising an electrical appliance body, characterized in that, It also includes the battery as described in claim 6, the battery being configured to supply power to the main body of the electrical device.

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