Battery box body, battery and electric device

Abstract

The utility model provides a battery box body, and belongs to the technical field of batteries. The battery box comprises a box body and a mounting beam, the box body is provided with an accommodating cavity for accommodating a battery monomer and a box outer wall surface positioned at one end of the accommodating cavity along the first direction; the mounting beam is used for connecting the box body to the mounting chassis, and the mounting beam is connected with the outer wall surface of the box body. Wherein the connecting position of the mounting beam and the outer wall surface of the box body is configured to be adjustable in the vertical direction, and the first direction is perpendicular to the vertical direction. Therefore, the mounting beam which is independently and integrally formed is connected with the outer wall surface of the box body of the battery box body, so that the connecting position of the mounting beam and the outer wall surface of the box body can be adjusted in the vertical direction, the battery box body can be suitable for more types of mounting chassis, and the universality of the battery box body is improved.

Description

Technical Field

[0001] 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

[0002] Energy conservation and emission reduction are the key to the sustainable development of the automobile industry. Electric vehicles have become an important part of the sustainable development of the automobile industry due to their advantages in energy conservation and environmental protection. For electric vehicles, battery technology is an important factor in their development.

[0003] Mounting beams are generally provided on both sides of the battery box and connected to the mounting chassis through the mounting beams. However, since the mounting beams and the battery box body are integrally formed, the relative position between the mounting beams and the box body is fixed, resulting in the inability to adjust the mounting beams according to the different positions of the mounting points of different mounting chassis, which limits the versatility of the battery box to a certain extent and is not conducive to reducing the mold opening cost of the battery box. Utility Model Content

[0004] The present application aims to solve at least one of the technical problems existing in the background technology. To this end, one purpose of the present application is to provide a battery box to improve the problems in the related technology.

[0005] An embodiment of the first aspect of the present application provides a battery case. The battery case includes a case body and a mounting beam. The case body has a housing cavity for accommodating a battery cell and an outer wall surface of the case body at one end of the housing cavity along a first direction. The mounting beam is used to connect the case body to a mounting chassis, and the mounting beam is connected to the outer wall surface of the case body. The connection position of the mounting beam and the outer wall surface of the case body is configured to be adjustable in a vertical direction, and the first direction is perpendicular to the vertical direction.

[0006] In the technical solution of the embodiment of the present application, by connecting a separately integrally formed mounting beam and the outer wall surface of the battery box, the connection position of the mounting beam and the outer wall surface of the box can be adjusted in the vertical direction according to the requirements of different mounting chassis for the assembly space of the battery box, so that the battery box can be suitable for more types of mounting chassis, thereby increasing the versatility of the battery box and helping to reduce the mold opening cost of the battery box.

[0007] In some embodiments, the box body includes an upper cover and a lower box body, and the outer wall surface of the box body is the outer wall surface of one end of the lower box body along the first direction. Therefore, selecting the box body as a configuration consisting of an upper cover and a lower box body is conducive to defining a relatively flat outer wall surface on the lower box body, thereby facilitating connecting the mounting beam to the box body through the outer wall surface of the lower box body.

[0008] In some embodiments, the connection between the mounting beam and the outer wall of the box body is a detachable connection. Therefore, by setting the connection between the mounting beam and the outer wall of the box body to be a detachable connection, when the battery box body is connected to the mounting chassis, the connection position can be adjusted in time according to the specific shape of the mounting chassis, so that mounting chassis of different sizes or structures can be applied, thereby increasing the applicable scope of the battery box body installation.

[0009] In some embodiments, the mounting beam is connected to the outer wall of the box body by flow drill screw connection. Thus, setting the mounting beam to the outer wall of the box body by flow drill screw connection avoids pre-screw holes on the outer wall of the box body and / or the mounting beam, which is conducive to reducing the processing time of the outer wall of the box body and / or the mounting beam.

[0010] In some embodiments, the battery box further includes a leveling member, which is located on the side of the mounting beam facing the mounting chassis, and is used to adjust the flatness of the surface where the mounting beam contacts the mounting chassis. Thus, the flatness of the surface where the mounting beam contacts the mounting chassis can be adjusted by the leveling member.

[0011] In some embodiments, the mounting beam is connected to the mounting chassis via a connecting member. The mounting beam is provided with at least one through hole, the leveling member includes a first leveling member arranged corresponding to the through hole, and the connecting member passes through the through hole and the first leveling member at the same time to connect the mounting beam to the mounting chassis. Thus, by providing the first leveling member with a through hole for the connecting member to pass through, the connecting member can be isolated from the external environment, preventing the connecting member from being corroded and damaged by the external environment, which is conducive to preventing the strength of the connecting member from being reduced due to the external environment, and is conducive to maintaining the connection strength between the mounting beam and the mounting chassis to a certain extent.

[0012] In some embodiments, the first leveling member includes a first sleeve section and a second sleeve section extending in the vertical direction, the first sleeve section is located inside the through hole and fixedly connected to the through hole, the second sleeve section is located outside the through hole, and the top surface of the second sleeve section in the vertical direction is in contact with the mounting chassis. Thus, the first sleeve section is arranged inside the through hole and fixedly connected to the through hole to prevent the first leveling member from shifting, and at the same time, the height of the second sleeve section is matched with the gap between the mounting chassis and the mounting beam, so as to facilitate positioning the mounting beam to a preset installation position in the vertical direction.

[0013] In some embodiments, the maximum dimension of the cross section of the first sleeve segment is smaller than the minimum dimension of the cross section of the second sleeve segment, so that a step surface is formed at the junction of the first sleeve segment and the second sleeve segment, and the step surface is in contact with the surface of the mounting beam facing the mounting chassis. Thus, through the step surface formed at the junction of the first sleeve segment and the second sleeve segment, a greater fastening force can be borne in the vertical direction, preventing the battery box from deviating from the preset installation position due to deformation of the first leveling member.

[0014] In some embodiments, the leveling member further includes at least one second leveling member, and the second leveling member is staggered with the through hole on the mounting beam. Thus, by adding the second leveling member, it is helpful to adjust the flatness of the surface of the mounting beam in contact with the mounting chassis at a position other than the through hole.

[0015] An embodiment of a second aspect of the present application provides a battery, which includes the battery case in the above embodiment, and the battery cells are arranged in the accommodating cavity of the battery case.

[0016] 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.

[0017] 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

[0018] 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.

[0019] Figure 1 A schematic diagram of the structure of a vehicle according to some embodiments of the present application;

[0020] Figure 2 A schematic diagram of the exploded structure of a battery according to some embodiments of the present application;

[0021] Figure 3 This is a schematic diagram of the exploded structure of a battery box in some embodiments of the present application;

[0022] Figure 4 A schematic diagram of the connection between the mounting beam and the mounting chassis through the leveling member in some embodiments of the present application;

[0023] Figure 5 for Figure 3 A cross-sectional view of section AA in FIG.

[0024] Figure 6 A schematic diagram of a first leveling member according to some embodiments of the present application;

[0025] Figure 7 for Figure 3 Cross-sectional view of the BB section in

[0026] Description of reference numerals:

[0027] Vehicles 1000;

[0028] Battery 100, controller 200, motor 300;

[0029] Box body 10, box body 11, upper cover 111, lower box body 112, box outer wall surface 13, mounting beam 14, through hole 141, leveling member 16, first leveling member 161, second leveling member 162, first sleeve section 1611, second sleeve section 1612, step surface 1613;

[0030] Battery cell 20, mounting chassis 30;

[0031] A first direction D1, a second direction D2, and a vertical direction D3. DETAILED DESCRIPTION

[0032] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field 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" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0034] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0035] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0036] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0037] 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).

[0038] 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, which 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, and therefore should not be understood as a limitation on the embodiments of the present application.

[0039] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0040] At present, from the perspective of market development, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0041] As mentioned above, mounting beams are generally provided on both sides of the battery box and connected to the mounting chassis through the mounting beams. However, since the mounting beams and the battery box body are integrally formed, the relative position between the mounting beams and the box body is fixed, resulting in the inability to adjust the mounting beams according to the different positions of the mounting points of different mounting chassis, which limits the versatility of the battery box to a certain extent and is not conducive to reducing the mold opening cost of the battery box.

[0042] In order to make the battery box adaptable to a variety of mounting chassis of different specifications, a battery box with a separately formed mounting beam is designed, and the battery box includes a box body and a mounting beam. The box body has a receiving cavity for accommodating a battery cell and an outer wall surface of the box body at one end of the receiving cavity in a first direction. The mounting beam is used to connect the box body to the mounting chassis, and the mounting beam is connected to the outer wall surface of the box body. Among them, the connection position of the mounting beam and the outer wall surface of the box body is constructed to be adjustable in the vertical direction, and the first direction is perpendicular to the vertical direction.

[0043] By using such a battery case, since the mounting beam is formed separately as one piece, the connection position of the mounting beam and the outer wall of the case can be adjusted in the vertical direction according to the requirements of different mounting chassis for the assembly space of the battery case, so that the battery case can be suitable for more types of mounting chassis, thereby increasing the versatility of the battery case and helping to reduce the mold opening cost of the battery case.

[0044] The battery cells disclosed in the embodiments of the present application can be used in, but are not limited to, electric devices such as vehicles, ships or aircraft. A power supply system of the electric device can be composed of a battery box and a battery disclosed in the present application, which is conducive to making the battery box suitable for mounting chassis of more electric devices, thereby increasing the versatility of the battery box and helping to reduce the mold opening cost of the battery box.

[0045] The embodiment of the present application provides an electric device using a battery as a power source, and the electric device may be, but is not limited to, a mobile phone, a tablet, a laptop, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, etc. Among them, 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., and the spacecraft may include an airplane, a rocket, a space shuttle, and a spacecraft, etc.

[0046] 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.

[0047] Please refer to Figure 1 , Figure 1A schematic diagram of the structure of a vehicle provided for some embodiments of the present application. Vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may 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 may be provided at the bottom, head or tail of the vehicle 1000. The battery 100 may be used to power the vehicle 1000, for example, the battery 100 may be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, and 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.

[0048] In some embodiments of the present application, the battery 100 can not only serve as an operating power source for the vehicle 1000, but also serve 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.

[0049] Please refer to Figure 2 , Figure 2 Schematic diagram of the exploded structure of the battery provided in some embodiments of the present application. The battery 100 includes a box body 10 and a battery cell 20, and the battery cell 20 is contained in the box body 10. Among them, the box body 10 is used to provide a storage space for the battery cell 20, and the box body 10 can adopt a variety of structures. In some embodiments, the box body 10 may include a box body 11, and the box body may include an upper cover 111 and a lower box body 112, and the upper cover 111 and the lower box body 112 cover each other, and the upper cover 111 and the lower box body 112 jointly define a storage space for accommodating the battery cell 20. The lower box body 112 can be a hollow structure with one end open, and the upper cover 111 can be a plate-like structure, and the upper cover 111 covers the open side of the lower box body 112, so that the upper cover 111 and the lower box body 112 jointly define a storage space; the upper cover 111 and the lower box body 112 can also be hollow structures with one side open, and the open side of the upper cover 111 covers the open side of the lower box body 112. Of course, the box body 10 formed by the upper cover 111 and the lower box body 112 can be in various shapes, such as a cylinder, a cuboid, etc.

[0050] In the battery 100, there may be multiple battery cells 20, and the multiple battery cells 20 may be connected in series, in parallel, or in a mixed connection. A mixed connection means that the multiple battery cells 20 are both connected in series and in parallel. The multiple battery cells 20 may be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the multiple battery cells 20 is accommodated in the box 10; of course, the battery 100 may also be a battery module formed by connecting multiple battery cells 20 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 the box 10. The battery 100 may also include other structures, for example, the battery 100 may also include a busbar component for realizing electrical connection between the multiple battery cells 20.

[0051] Figure 3 This is a schematic diagram of the exploded structure of the battery box of some embodiments of the present application. Figure 3 As shown, an embodiment of the present application provides a battery case 10. The battery case 10 includes a case body 11 and a mounting beam 14. The case body 11 has a receiving cavity for receiving a battery cell and an outer wall surface of the case body at one end of the receiving cavity in a first direction D1. The mounting beam 14 is used to connect the case body 11 to the mounting chassis 30, and the mounting beam 14 is connected to the outer wall surface 13 of the case body. The connection position of the mounting beam 14 and the outer wall surface 13 of the case body is configured to be adjustable along the vertical direction D3, and the first direction D1 is perpendicular to the vertical direction D3.

[0052] The box body 11 may be a substantially rectangular box structure, and the outer wall surface 13 of the box body 11 is the outer surface of the wall surface except the bottom surface and the top surface.

[0053] The mounting beam 14 is a single integrally formed structure, which is located outside the battery case in the first direction D1 and connected to the outer wall surface 13 of the case body 11. The number of mounting beams 14 can be one or more. In some embodiments, there are two mounting beams 14, which are respectively arranged at both ends of the battery case along the first direction D1.

[0054] The mounting chassis 30 may be a structure in an electrical device for connecting to a battery box. In some embodiments, the mounting chassis 30 may be a chassis of a vehicle or a part of a chassis, such as a longitudinal beam extending in the length direction of the vehicle body. The number of mounting chassis 30 may be adapted to the mounting beam 14, such as two mounted chassis 30 spaced apart in the first direction D1 to be connected to two mounting beams 14 respectively.

[0055] In some embodiments, the mounting beam 14 is located at the lower side of the mounting chassis 30 in the vertical direction and is connected to the mounting chassis 30. The connection described above includes a detachable connection and a non-detachable connection. It can be understood that the present application does not limit whether the connection between the mounting beam 14 and the mounting chassis 30 is detachable.

[0056] Figure 4 This is a schematic diagram of the connection between the mounting beam and the mounting chassis through the leveling member in some embodiments of the present application. Figure 4 As shown, the connection position of the mounting beam 14 and the outer wall surface 13 of the box body is configured to be adjustable along the vertical direction D3, which means that the connection height of the mounting beam 14 and the outer wall surface 13 of the box body can be adjusted according to actual connection needs, so as to better match the connection surface of the mounting chassis 30. In some embodiments, a plurality of mounting holes or mounting grooves extending along the vertical direction D3 can be provided on the outer wall surface 13 of the box body along the vertical direction, and the mounting beam 14 can be connected to the mounting holes or mounting grooves at different positions to achieve the adjustment of the connection position in the vertical direction D3.

[0057] In some embodiments, the connection position between the mounting beam 14 and the outer wall surface 13 of the box body is constructed to be adjustable along a second direction D2, and the second direction D2 is the extension direction of the mounting beam 14, so that the battery box body 10 can be installed at a suitable relative position along the second direction D2 according to assembly requirements, thereby increasing the versatility of the battery box body 10 to a certain extent.

[0058] Thanks to the structure of the mounting beam 14 being formed as a single piece, the mounting beam 14 can be connected to the outer wall surface 13 of the box body at different heights in the vertical direction D3, so that the battery box body 10 can be installed at a suitable relative height according to assembly requirements.

[0059] Therefore, by connecting the separately integrally formed mounting beam 14 and the outer wall surface 13 of the battery box 10, the connection position of the mounting beam 14 and the outer wall surface 13 of the box body 10 can be adjusted in the vertical direction D3 according to the requirements of different mounting chassis 30 for the assembly space of the battery box 10, so that the battery box 10 can be suitable for more types of mounting chassis 30, thereby increasing the versatility of the battery box 10 and helping to reduce the mold opening cost of the battery box 10.

[0060] According to some embodiments of the present application, the box body 11 includes an upper cover 111 and a lower box body 112 , and the outer box body wall 13 is the outer wall surface of the lower box body 112 at one end in the first direction D1 .

[0061] like Figure 3 As shown, the box body 11 includes an upper cover 111 and a lower box body 112, and the upper cover 111 and the lower box body 112 can be connected in a detachable manner, and the two together define a receiving cavity for receiving the battery monomer. In some embodiments, the lower box body 112 includes a bottom plate and a side plate connected to the bottom plate, and the bottom plate and the side plate together form the main part of the receiving cavity, the upper cover 111 is generally a flat plate and is used to cover the opening of the lower box body 112 in the vertical direction to close the receiving cavity, and the outer wall surface 13 of the box body is the outer wall surface of any one of the two side plates of the lower box body 112 that are arranged opposite to each other along the first direction D1.

[0062] Therefore, selecting the box body 11 as a configuration consisting of an upper cover 111 and a lower box body 112 is conducive to defining a relatively flat outer wall surface on the lower box body 112, thereby facilitating connecting the mounting beam 14 to the box body 11 through the outer wall surface of the lower box body 112.

[0063] According to some embodiments of the present application, the mounting beam 14 is connected to the outer wall surface 13 of the box body in a detachable manner.

[0064] The mounting beam 14 and the box body are separately manufactured and formed, and can be connected by any detachable connection method, such as bolt connection, clamping, etc.

[0065] Therefore, by setting the connection method between the mounting beam 14 and the outer wall surface 13 of the box body to be a detachable connection, when the battery box body is connected to the mounting chassis 30, the connection position can be adjusted in time according to the specific shape of the mounting chassis 30. In this way, mounting chassis of different sizes or structural forms can be used to improve the applicability of the battery box installation.

[0066] According to some embodiments of the present application, the mounting beam 14 is connected to the outer wall surface 13 of the box body by flow drill screw connection.

[0067] Flow Drill Screw, also known as hot melt rotary tapping riveting or hot melt self-tapping, is a cold forming connection method that uses the high-speed rotation of the screw to generate heat and soften the plate, and then self-taps under the action of axial load to form a tight threaded connection.

[0068] The flow drill screw connection includes six stages: rotary heating, penetration, through hole, tapping, threading, and tightening. Specifically, first, the flow drill screw contacts the surface of the plate at low speed and low pressure to heat it; then, the plate undergoes plastic deformation and is penetrated under the high speed and high pressure of the flow drill screw; then, the flow drill screw drills a cylindrical through hole in the plate; after that, the plate is drilled through by the flow drill screw, and the speed and pressure are reduced, so that the flow drill screw can self-tap the thread in the hole; then the normal screw tightening process is carried out; finally, the plate cools and fits tightly with the flow drill screw, forming an extremely airtight and watertight connection.

[0069] Therefore, the connection method between the mounting beam 14 and the outer wall surface 13 of the box body is set to a flow drill screw connection, which avoids pre-screw holes on the outer wall surface 13 of the box body and / or the mounting beam 14, is beneficial to reducing the processing time of the outer wall surface 13 of the box body and / or the mounting beam 14, and the connection position is also more flexible, thereby improving the scope of application.

[0070] Figure 4This is a schematic diagram of the connection between the mounting beam and the mounting chassis through the leveling member in some embodiments of the present application. Figure 4 As shown, the battery box 10 may further include a leveling member 16 , which is located on a side of the mounting beam 14 facing the mounting chassis 30 , so as to adjust the flatness of the surface where the mounting beam 14 contacts the mounting chassis 30 .

[0071] like Figure 4 As shown, there may be a certain gap between the mounting beam 14 and the mounting chassis 30, and a leveling member 16 is provided in the gap, and the flatness of the surface where the mounting beam contacts the mounting chassis can be adjusted by the leveling member 16. The leveling member 16 can be fixedly connected to the side of the mounting beam 14 facing the mounting chassis 30, and the upper surface of the leveling member 16 away from the mounting beam 14 is used to contact the mounting chassis 30, so that when the battery box is connected to the mounting chassis 30, the height and flatness of the leveling member 16 can be processed according to the gaps corresponding to different positions between the mounting beam 14 and the mounting chassis 30 to meet the installation requirements of the gap. In some embodiments, the leveling member 16 can be first fixedly connected to the surface of the side of the mounting beam 14 facing the mounting chassis 30, and then the upper surface of the leveling member 16 can be polished or otherwise processed according to the specific gap size during assembly to achieve the purpose of meeting the installation requirements.

[0072] Therefore, by providing the leveling member 16 on the mounting beam 14 , the flatness of the surface where the mounting beam 14 contacts the mounting chassis 30 can be adjusted more flexibly, thereby meeting the connection requirements of different mounting chassis 30 and improving the scope of application.

[0073] Figure 5 for Figure 3 The sectional view of section AA in FIG. Figure 5 The mounting beam 14 is connected to the mounting chassis 30 via a connecting member. The mounting beam 14 is provided with at least one through hole 141, and the leveling member 16 includes a first leveling member 161 corresponding to the through hole 141. The connecting member passes through the through hole 141 and the first leveling member 161 to connect the mounting beam 14 to the mounting chassis 30.

[0074] like Figure 5 As shown, the first leveling member 161 has a through hole inside for the connecting member to pass through, so that the connecting member passes through the mounting beam 14 and the first leveling member 161 in the vertical direction in sequence to achieve the connection between the mounting beam 14 and the mounting chassis 30. The specific form of the through hole inside the first leveling member 161 can be a circular hole or a polygonal hole, as long as it allows the connecting member to pass through and connect to the mounting chassis 30.

[0075] It is understandable that the specific form of the connecting piece can be a screw, a stud, a rivet or a pin, etc. At the same time, in order to increase the strength of the connecting piece itself, the material of the connecting piece can be selected as metal. By providing the first leveling piece 161, the connecting piece is completely wrapped around the periphery of the connecting piece in the circumferential direction, which can prevent the connecting piece from being corroded and damaged due to contact with the external environment to a certain extent.

[0076] Therefore, by providing the first leveling member 161 with a through hole for the connecting member 151 to pass through, the connecting member 151 can be isolated from the external environment to prevent the connecting member 151 from being corroded and damaged by the external environment, which is beneficial to preventing the strength of the connecting member 151 from being reduced due to the external environment, and is beneficial to maintaining the connection strength between the mounting beam 14 and the mounting chassis 30 to a certain extent.

[0077] Figure 7 Schematic diagram of the first leveling member 161 of some embodiments of the present application. Figure 7 As shown, the first leveling member 161 includes a first sleeve segment 1611 and a second sleeve segment 1612 extending in the vertical direction D3. The first sleeve segment 1611 is located inside the through hole 141 and fixedly connected to the through hole 141, and the second sleeve segment 1612 is located outside the through hole 141. The top surface of the second sleeve segment 1612 in the vertical direction D3 is in contact with the mounting chassis 30.

[0078] like Figure 7 and Figure 5 As shown, according to whether the first leveling member 161 protrudes from the surface of the mounting beam 14 in the vertical direction, the first sleeve section 161 can be divided into a first sleeve section 1611 and a second sleeve section 1612. The first sleeve section 1611 is located inside the through hole 141 and is fixedly connected to the through hole 141; the second sleeve section 1612 protrudes from the surface of the mounting beam 14 and continues to extend upward in the vertical direction for a certain height before being fitted with the mounting chassis 30, so that the second sleeve section 1612 can match the gap between the mounting beam 14 and the mounting chassis 30.

[0079] In some embodiments, the first sleeve segment 1611 has a connection portion that matches the size of the through hole 141, so that the first sleeve segment 1611 can be inserted into the through hole 141 to be connected with the through hole 141. The first sleeve segment 1611 can be connected to the through hole 141 by threaded connection, welding, or clamping.

[0080] Therefore, disposing the first sleeve segment 1611 inside the through hole 141 and fixedly connecting it to the through hole 141 can prevent the first sleeve segment 1611 from shifting. At the same time, the height of the second sleeve segment 1612 is matched with the gap between the mounting chassis 30 and the mounting beam 14, so as to facilitate positioning the mounting beam 14 to a preset installation position in the vertical direction D3.

[0081] Figure 7 Schematic diagram of the first leveling member 161 of some embodiments of the present application. Figure 7 As shown, the maximum dimension of the cross section of the first sleeve section 1611 is smaller than the minimum dimension of the cross section of the second sleeve section 1612, so that a step surface 1613 is formed at the junction of the first sleeve section 1611 and the second sleeve section 1612, and the step surface 1613 is in contact with the surface of the mounting beam 14 facing the mounting chassis 30.

[0082] like Figure 7 As shown, the cross section of the first sleeve segment 1611 and the cross section of the second sleeve segment 1612 refer to the cross sections of the two along the horizontal direction. In some embodiments, the cross section of the first sleeve segment 1611 and the cross section of the second sleeve segment 1612 are both circular, and the maximum diameter of the second sleeve segment 1612 is greater than the maximum diameter of the first sleeve segment 1611, so that the cross-sectional area of ​​the second sleeve segment 1612 is greater than the cross-sectional area of ​​the first sleeve segment, thereby forming an annular step surface 1613. Figure 5 As shown, after the mounting beam 14 is connected to the mounting chassis 30 , the step surface 1613 is in contact with the surface of the mounting beam 14 facing the mounting chassis 30 , so that the step surface can share the fastening force acting on the first leveling member 161 along the vertical direction D3 to a certain extent.

[0083] Therefore, the contact area between the second sleeve section 1612 and the surface of the mounting beam 14 can be increased by forming the step surface 1613, so that a greater fastening force can be withstood in the vertical direction D3, thereby achieving a more reliable fastening connection.

[0084] According to some embodiments of the present application, the leveling member 16 further includes at least one second leveling member 162 , and the second leveling member 162 is disposed in a staggered manner with respect to the through hole on the mounting beam 14 .

[0085] like Figure 7 As shown, the leveling member 16 further includes a second leveling member 162, which is disposed on the surface of the mounting beam 14 facing the mounting chassis 30, and the second leveling member 162 can be fixedly connected to the mounting beam 14 by welding, bonding or threaded connection. In some embodiments, the second leveling member 162 can also be a portion that is integrally formed with the mounting beam 14 and protrudes from the surface facing the mounting chassis 30. The second leveling member 162 can be staggered with the through hole on the mounting beam 14, which is actually also staggered with the first leveling member 161, thereby supporting the portion between the two first leveling members 161.

[0086] Therefore, by adding the second leveling member 162, the contact points when the mounting beam 14 is connected to the mounting chassis 30 can be increased, which can better adapt to the shape and size of different positions of the mounting chassis 30, and is conducive to further improving the surface adaptation degree of the mounting beam and the mounting chassis, and improving the reliability of the connection.

[0087] The embodiment of the present application provides a battery 100, which includes the battery case 10 in the above embodiment, and the battery cell 20 is arranged in the accommodating cavity of the battery case.

[0088] An embodiment of the present application provides an electrical device, which includes the battery 100 in the above embodiment, and the battery 100 is used to provide electrical energy.

[0089] Figure 3 Schematic diagram of the exploded structure of the battery box 10 of some embodiments of the present application. Figure 3 As shown, the mounting beam 14 is a single integrally formed structure, which is located outside the battery box in the first direction D1 and connected to the battery box through the outer wall surface 13. At the same time, the mounting beam 14 is located at the lower side of the mounting chassis 30 in the vertical direction and connected to the mounting chassis 30.

[0090] The connection between the mounting beam 14 and the outer wall 13 of the box body is specifically a flow drill screw connection, which avoids pre-screw holes on the outer wall 13 of the box body and / or the mounting beam 14, and is beneficial to reducing the processing time of the outer wall 13 of the box body and / or the mounting beam 14.

[0091] The connection between the mounting beam 14 and the mounting chassis 30 is achieved through the through hole 141, the connecting piece and the first leveling piece 161. The through hole 141 passes through the mounting beam 14 along the vertical direction D3. The function of the through hole 141 is to allow the connecting piece to pass through. The specific form of the connecting piece is a screw, which facilitates the assembly of the mounting beam 14 and the mounting chassis 30. The first leveling piece 161 has a through hole for the connecting piece to pass through, so that the connecting piece passes through the mounting beam 14 and the first leveling piece 161 in the vertical direction D3 in sequence to achieve the connection between the mounting beam 14 and the mounting chassis 30, so that the connecting piece can be isolated from the external environment, preventing the connecting piece from being eroded and damaged by the external environment, which is conducive to preventing the strength of the connecting piece from being reduced due to the external environment, and to a certain extent, it is conducive to maintaining the connection strength between the mounting beam 14 and the mounting chassis 30.

[0092] like Figure 6As shown in FIG. 1 and FIG. 2 , the first leveling member 161 can be divided into a first sleeve section 1611 and a second sleeve section 1612 according to whether it protrudes from the surface of the mounting beam 14 in the vertical direction D3. The first sleeve section 1611 is located inside the through hole 141 and is fixedly connected to the through hole 141; the second sleeve section 1612 protrudes from the surface of the mounting beam 14 and continues to extend upward along the vertical direction D3 to a certain height and then fits with the mounting chassis 30, so that the second sleeve section 1612 can match the gap between the mounting beam 14 and the mounting chassis 30. Therefore, the first sleeve section 1611 is located inside the through hole 141 and is fixedly connected to the through hole 141 to prevent the first sleeve section 1611 from shifting, and at the same time, the height of the second sleeve section 1612 is matched with the gap between the mounting chassis 30 and the mounting beam 14, so as to facilitate the positioning of the mounting beam 14 to a preset installation position in the vertical direction.

[0093] The diameter of the second sleeve section 1612 is greater than the diameter of the first sleeve section 1611, so that the second sleeve section 1612 has a step surface 1613 at the bottom in the vertical direction D3 that fits with the upper surface of the mounting beam 14. The step surface 1613 can increase the contact area between the second sleeve section 1612 and the mounting beam 14, thereby improving the reliability of the fastening connection to a certain extent.

[0094] A second leveling member 162 can also be set between the mounting beam 14 and the mounting chassis 30. The second leveling member 162 can be staggered with the through hole 141 and the first leveling member 161. This can better adapt the connection contact point between the mounting beam 14 and the mounting chassis 30, better adapt to the shape and size of different positions of the mounting chassis 30, and improve the reliability of the connection.

[0095] 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 replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate 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, characterized in that: include: A box body, the box body having a receiving cavity for receiving a battery cell and a box body outer wall surface located at one end of the receiving cavity in the first direction; A mounting beam is used to connect the box body to a mounting chassis, and the mounting beam is connected to the outer wall of the box body. Wherein, the connection position between the mounting beam and the outer wall of the box body is constructed to be adjustable along the vertical direction, and the first direction is perpendicular to the vertical direction.

2. The battery case according to claim 1, wherein the case body comprises an upper cover and a lower case that are detachably connected, the upper cover and the lower case together define the accommodating cavity, and the outer wall surface of the case body is the outer wall surface of the lower case at one end in the first direction.

3. The battery box according to claim 1 or 2, wherein the mounting beam is connected to the outer wall of the box in a detachable manner.

4. The battery box according to claim 3, wherein the mounting beam is connected to the outer wall of the box body by flow drill screw connection.

5. The battery case according to claim 1 or 2, characterized in that: Also includes A leveling member is located on a side of the mounting beam facing the mounting chassis, and is used to adjust the flatness of the surface where the mounting beam contacts the mounting chassis.

6. The battery box according to claim 5, characterized in that: The mounting beam is connected to the mounting chassis via a connecting piece; The mounting beam is provided with at least one through hole, the leveling member includes a first leveling member arranged corresponding to the through hole, and the connecting member passes through the through hole and the first leveling member at the same time to connect the mounting beam to the mounting chassis.

7. The battery case according to claim 6, characterized in that: The first leveling member includes a first sleeve segment and a second sleeve segment extending in the vertical direction, the first sleeve segment is located inside the through hole and fixedly connected to the through hole, the second sleeve segment is located outside the through hole, and the top surface of the second sleeve segment in the vertical direction is in contact with the mounting chassis.

8. The battery case according to claim 7, characterized in that: The maximum dimension of the cross section of the first sleeve segment is smaller than the minimum dimension of the cross section of the second sleeve segment, so that a step surface is formed at the junction of the first sleeve segment and the second sleeve segment, and the step surface is in contact with the surface of the mounting beam facing the mounting chassis.

9. The battery case according to claim 6, characterized in that: The leveling member further includes at least one second leveling member, and the second leveling member is staggered with the through hole on the mounting beam.

10. A battery, characterized in that: It comprises a battery cell and a battery case as claimed in any one of claims 1 to 9, wherein the battery cell is arranged in a receiving cavity of the battery case.

11. An electrical device, characterized in that: The electrical device comprises the battery as claimed in claim 10, and the battery is used to provide electrical energy.

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