Box body, battery and electric equipment

Abstract

The utility model discloses a box body, a battery and electric equipment, and belongs to the technical field of batteries. The utility model provides a box body which comprises a frame and a heat management component, and the frame is integrally cast and formed. The edge of the heat management part is embedded into the frame and is fixed with the frame, the heat management part and the frame jointly define a containing space with an opening, and the containing space is used for containing the single battery. After the frame is formed by adopting an integrated casting mode, the thermal management component and the frame are formed into the box body by adopting an embedded casting mode, so that the number of welding seams and the use amount of fasteners are reduced, the risks of box body deformation and sealing failure in the assembly process are reduced, and the reliability of the battery is favorably improved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a 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] How to improve battery reliability is an urgent problem to be solved in battery technology. Utility Model Content

[0004] In view of the above problems, the present application provides a box, a battery and an electrical device, which can improve the reliability of the battery.

[0005] In a first aspect, the present application provides a box body, the box body includes a frame and a thermal management component, the frame is integrally cast, the edge of the thermal management component is embedded in the frame and fixed to the frame, the thermal management component and the frame together define a receiving space with an opening, and the receiving space is used to receive a battery cell.

[0006] In the technical solution of the embodiment of the present application, after the frame is formed by an integrated casting method, the thermal management component and the frame are formed into a box body by an embedded casting method, which reduces the number of welds and the amount of fasteners used, reduces the risk of box deformation and sealing failure during assembly, and is beneficial to improving the reliability of the battery.

[0007] In one or more embodiments of the first aspect, the melting point of the frame is lower than the melting point of the thermal management component.

[0008] In the above scheme, since the melting point of the frame is lower than the melting point of the thermal management component, when the frame and the thermal management component are embedded in the casting, the risk of deformation of the thermal management component during molding of the frame is reduced, which is beneficial to improving the structural stability of the box.

[0009] In one or more embodiments of the first aspect, the material of the frame includes aluminum, and the material of the thermal management component includes steel.

[0010] In the above scheme, using steel to manufacture the thermal management component can improve the structural strength of the thermal management component on the one hand, and reduce the production cost of the thermal management component on the other hand. Using aluminum to manufacture the frame is conducive to reducing the overall weight of the box and improving the mass energy density of the battery.

[0011] In one or more embodiments of the first aspect, the thermal management component includes a first plate body and a second plate body that are stacked, the first plate body includes a main body and an edge portion, the edge portion is arranged around the main body, the edge portion is embedded in a frame and fixed to the frame, the second plate body is arranged on the side of the main body facing the accommodating space, and a flow channel for heat exchange medium to flow is arranged between the main body and the second plate body.

[0012] In the above solution, only the edge of the first plate of the thermal management component is embedded in the frame, which makes the molding of the box body relatively easy and helps to improve the structural stability of the connection position between the thermal management component and the frame.

[0013] In one or more embodiments of the first aspect, the first plate body further includes a transition portion connecting the main body and the edge portion, the main body has a first surface facing the second plate body, and the transition portion and the edge portion both protrude from the first surface.

[0014] In the above solution, the transition portion and the edge portion both protrude from the first surface, which means that there is a height difference between the edge portion and the main body portion, which is beneficial to reducing the difficulty of combining the edge portion with the frame, and at the same time can also simplify the sealing difficulty of the connection position between the thermal management component and the frame.

[0015] In one or more embodiments of the first aspect, the edge portion includes a first section and a second section, the first section extends from the transition portion in a direction away from the main body, and the second section extends from the first section in a direction close to the opening, and the first section and the second section are both embedded in the frame.

[0016] In the above solution, the first section and the second section are both embedded in the frame, which means that at least part of the frame supports the edge portion, further improving the structural strength of the connection between the thermal management component and the frame. At the same time, the second end and the first section extend in different directions, which is conducive to further improving the structural strength of the edge portion and the front and rear of the frame.

[0017] In one or more embodiments of the first aspect, a gap is formed between the side of the transition portion facing away from the accommodating space and the frame, and the gap is filled with colloid.

[0018] In the above solution, the existence of the gap can limit the shape of the filling colloid, reducing the risk of sealing failure at the connection position between the thermal management component and the frame due to the disorderly distribution of the colloid, which is beneficial to improving the reliability of the battery.

[0019] In one or more embodiments of the first aspect, the frame has a second surface away from the opening, the body has a third surface away from the opening, and the second surface is flush with the third surface.

[0020] In the above solution, the second surface is flush with the third surface, which means that the surface of the frame and the surface of the body away from the opening are basically located in the same plane, which is beneficial to improving the volume energy density of the battery.

[0021] In one or more embodiments of the first aspect, a first groove is provided on a side of the main body facing the second plate body, and the second plate body covers the first groove to form a flow channel.

[0022] In the above solution, the flow channel is formed by setting the first groove, which has low processing difficulty and low cost.

[0023] In a second aspect, the present application provides a battery, which includes a box body, a battery cell and a cover body in one or more embodiments of the first aspect, wherein the battery cell is accommodated in the box body. The cover body is connected to the frame and closes the opening.

[0024] In the above scheme, since the housing in one or more embodiments of the first aspect has high reliability, the battery including the housing in one or more embodiments of the first aspect also has high reliability.

[0025] In one or more embodiments of the second aspect, the frame includes a first wing plate, a second wing plate and a web, the web connects the first wing plate and the second wing plate, and the cover is connected to the first wing plate.

[0026] In the above solution, under the premise that the battery has a high energy density, the provision of the first wing plate can increase the area of ​​the region where the frame can be connected to the cover body, which is conducive to reducing the difficulty of connecting the cover body and the frame.

[0027] In one or more embodiments of the second aspect, the frame includes a first boss, the first boss is arranged on the side of the first wing plate facing the cover body, the first boss is provided with a first threaded hole, the first threaded hole passes through the first boss and the first wing plate, and the cover body is connected to the first threaded hole through a first fastener.

[0028] In the above solution, the provision of the first boss can increase the length of the first threaded hole, which is beneficial to improving the connection strength after the cover body is connected to the frame through the first fastener.

[0029] In one or more embodiments of the second aspect, the battery further includes a seal, which is disposed between the cover and the first wing plate. A positioning hole is disposed on the seal, and at least a portion of the first boss is located in the positioning hole.

[0030] In the above solution, when the first boss is provided to increase the connection strength between the cover and the frame, at least part of the first boss is located in the positioning hole, which means that the seal does not occupy additional space of the battery, which is conducive to improving the volume energy density of the battery. At the same time, the cooperation between the positioning hole and the first boss can also simplify the assembly process of the seal and reduce the difficulty of assembling the seal.

[0031] In one or more embodiments of the second aspect, a plurality of first bosses are provided, and the plurality of first bosses are spaced apart along the circumference of the frame.

[0032] In the above solution, the provision of multiple first bosses is conducive to further improving the connection strength between the cover body and the frame.

[0033] In one or more embodiments of the second aspect, the battery further includes a bottom guard plate, which is disposed on a side of the thermal management component away from the accommodating space, and the bottom guard plate is connected to the second wing plate.

[0034] In the above solution, the bottom guard plate can reduce the risk of damage to the thermal management components, which is beneficial to improving the reliability of the battery. At the same time, under the premise that the battery has a high energy density, the provision of the second wing plate can increase the area of ​​the area where the frame can be connected to the bottom guard plate, which is beneficial to reducing the difficulty of connecting the bottom guard plate and the frame.

[0035] In one or more embodiments of the second aspect, the frame also includes a second boss, which is arranged on the side of the second wing plate away from the bottom guard plate, and the second boss is provided with a second threaded hole, which passes through the second boss and the second wing plate, and the bottom guard plate is connected to the second threaded hole through a second fastener.

[0036] In the above solution, the second boss can increase the length of the second threaded hole, which is beneficial to improve the connection strength after the bottom guard plate is connected to the frame through the second fastener. At the same time, the second boss is arranged on the side of the second wing plate away from the bottom guard plate, which will not occupy additional height space of the battery, which is beneficial to improve the volume energy density of the battery.

[0037] In one or more embodiments of the second aspect, a plurality of second bosses are provided, and the plurality of second bosses are spaced apart along the circumference of the frame.

[0038] In the above solution, the provision of multiple second bosses is beneficial to further improve the connection strength between the bottom guard plate and the frame.

[0039] In one or more embodiments of the second aspect, the frame further includes a reinforcing rib, which is disposed on an outer surface of the web and connects the first wing panel and the second wing panel.

[0040] In the above solution, the provision of the reinforcing ribs is beneficial to improving the structural strength of the frame. At the same time, since the reinforcing ribs are located between the first wing plate and the second wing plate, they will not occupy additional space in the height direction of the battery, which is beneficial to improving the volume energy density of the battery.

[0041] In one or more embodiments of the second aspect, the frame further includes a mounting portion, and the mounting portion is used to mount the battery on a body of the electrical device.

[0042] In the above solution, the structural strength of the frame is relatively high, and the structural strength of the mounting portion of the frame is also relatively high, which is beneficial to improving the stability of the battery after it is mounted on the main body of the electrical equipment.

[0043] In a third aspect, the present application provides an electrical device, which includes the battery in one or more embodiments of the second aspect, and the battery is used to provide electrical energy.

[0044] In the above scheme, since the battery in one or more embodiments of the second aspect has high reliability, the electrical equipment including the battery in one or more embodiments of the second aspect also has high reliability.

[0045] 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, which can be implemented in accordance with the contents of the specification, and to make 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

[0046] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0047] Figure 1 A schematic diagram of the structure of a vehicle according to some embodiments of the present application;

[0048] Figure 2 An exploded view of a battery according to some embodiments of the present application;

[0049] Figure 3 An isometric view of a battery according to some embodiments of the present application;

[0050] Figure 4 An exploded view of a portion of the structure of a battery according to some embodiments of the present application;

[0051] Figure 5 An exploded view of a box body according to some embodiments of the present application;

[0052] Figure 6 A cross-sectional view of a portion of the structure of a battery according to some embodiments of the present application;

[0053] Figure 7 for Figure 3 A partial enlarged view of the middle A;

[0054] Figure 8 for Figure 5 A partial enlarged view of point B in the middle;

[0055] Fig. 9 An exploded view of a thermal management component according to some embodiments of the present application.

[0056] The reference numerals in the specific implementation manner are as follows:

[0057] 1000-vehicle; 200-controller; 300-motor; 100-battery; 10-box; 11-box assembly; 111-first part; 112-second part; 12-battery cell; 13-frame; 130-second surface; 131-first wing plate; 132-second wing plate; 133-web plate; 134-first boss; 135-second boss; 136-reinforcement rib; 137-mounting part; 14-thermal management component; 141-first plate ;1411-edge portion;14111-first section;14112-second section;1412-main body;14121-first surface;14122-first groove;14123-third surface;1413-transition portion;142-second plate body;15-cover body;16-accommodating space;161-opening;17-flow channel;18-gap;19-bottom guard plate;20-seal;201-positioning hole;21-first fastener;22-second fastener. DETAILED DESCRIPTION

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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).

[0063] 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", "circumferential", "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.

[0064] In the present application, battery cells may include but are not limited to lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries or magnesium-ion batteries, etc. The shape of the battery cell may include but is not limited to a cylinder, a flat body, a rectangular parallelepiped or other shapes, etc. The battery cell may include but is not limited to a cylindrical battery cell, a square battery cell, a soft-pack battery cell and a blade battery cell according to the packaging method.

[0065] In some high-power applications such as electric vehicles, the application of batteries includes three levels: battery cells, battery modules and batteries. The battery module is formed by electrically connecting a certain number of battery cells together and placing them in a frame in order to protect the battery cells from external impact, heat, vibration, etc. The battery refers to the final state of the battery system installed in the electric vehicle. The battery mentioned in the embodiments of the present application refers to a single physical module that includes one or more battery cells to provide higher voltage and capacity. The battery generally includes a casing for encapsulating one or more battery cells. The casing can reduce the risk of liquid or other foreign matter affecting the charging or discharging of the battery cells.

[0066] In order to improve the working reliability and stability of the battery, a thermal management component is usually installed in the box. In some cases, the thermal management component is located at the bottom of the box and fixedly installed on the frame of the box. In other cases, the thermal management component is located between adjacent battery cells and fits the large surface of the battery cell. The battery cell is generally connected to the thermal management component through a thermally conductive adhesive to facilitate heat exchange between the battery cell and the thermal management component. When the temperature of the thermal management component changes, the temperature of the battery cell in contact with it changes accordingly.

[0067] The following will mainly focus on the rectangular battery cell. It should be understood that the embodiments described below are also applicable to cylindrical battery cells, soft-pack battery cells, or blade battery cells in some aspects.

[0068] The development of battery technology must take into account many design factors at the same time, such as energy density, cycle life, discharge capacity, charge and discharge rate and other performance parameters. In addition, battery reliability must also be considered.

[0069] The box body generally includes a frame and a bottom plate, and the bottom plate is used to carry the battery cells. The frame generally adopts a splicing structure, and the parts of the frame are connected together by welding after being spliced. During the welding process, there is a high risk of deformation of the frame, and the risk of sealing failure at the connection points of the frame parts is also high. At the same time, the bottom plate is connected to the bottom of the frame through a large number of fasteners, and the risk of sealing failure is also relatively high, and the reliability of the battery is poor.

[0070] In view of this, the present application provides a box body, which includes a frame and a thermal management component, and the frame is integrally cast. The edge of the thermal management component is embedded in the frame and fixed to the frame, and the thermal management component and the frame together define a receiving space with an opening, and the receiving space is used to accommodate battery cells. After the frame is formed by integral casting, the thermal management component and the frame are formed into a box body by embedded casting, which reduces the number of welds and the amount of fasteners used, reduces the risk of box deformation and sealing failure during assembly, and is conducive to improving the reliability of the battery.

[0071] The technical solutions described in the embodiments of the present application are applicable to batteries and electrical equipment using batteries.

[0072] Electrical equipment includes, but is not limited to: battery vehicles, electric vehicles, ships, and spacecraft, etc. For example, spacecraft include airplanes, rockets, space shuttles, and spacecraft, etc.

[0073] For the convenience of description, the following embodiments are described by taking a vehicle as an example of an electrical device in an embodiment of the present application.

[0074] For example, Figure 1The schematic diagram of the structure of the vehicle 1000 of some embodiments of the present application, the vehicle 1000 can be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. The motor 300, the controller 200 and the battery 100 can be arranged inside the vehicle 1000, and the controller 200 is used to control the battery 100 to power the motor 300. For example, the battery 100 can be arranged at the bottom or the front or the rear of the vehicle 1000. The battery 100 can be used for powering the vehicle 1000, for example, the battery 100 can be used as the operating power supply of the vehicle 1000, for the circuit system of the vehicle 1000, for example, for the working power demand of the vehicle 1000 during startup, navigation and operation. In another embodiment of the present application, the battery 100 can not only be used as the operating power supply of the vehicle 1000, but also as the driving power supply of the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0075] In order to meet different power requirements, the battery 100 may include a plurality of battery cells 12, wherein the plurality of battery cells 12 may be connected in series, in parallel, or in a hybrid connection, wherein the hybrid connection refers to a mixture of series and parallel connections. The battery 100 may also be referred to as a battery pack. Optionally, a plurality of battery cells 12 may first be connected in series, in parallel, or in a hybrid connection to form a battery module, and a plurality of battery modules may then be connected in series, in parallel, or in a hybrid connection to form the battery 100. In other words, a plurality of battery cells 12 may directly form the battery 100, or they may first form a battery module, and then the battery module may form the battery 100.

[0076] For example, see Figure 2 , Figure 2 FIG. 1 is an exploded view of a battery 100 in some embodiments of the present application. The battery 100 may include a plurality of battery cells 12. The battery 100 may also include a box assembly 11, and the plurality of battery cells 12 are accommodated in the box assembly 11. Figure 2As shown, the box assembly 11 may include two parts, which are respectively referred to as the first part 111 and the second part 112, and the first part 111 and the second part 112 are buckled together. The shapes of the first part 111 and the second part 112 may be determined according to the shapes of the combination of multiple battery cells 12, and the first part 111 and the second part 112 may each have an opening 161. For example, the first part 111 and the second part 112 may both be hollow cuboids and each have only one open face, the open face of the first part 111 and the open face of the second part 112 are arranged opposite to each other, and the first part 111 and the second part 112 are buckled together to form a box assembly 11 with a closed chamber. After the multiple battery cells 12 are connected in parallel, in series or in a mixed combination, they are placed in the box assembly 11 formed by buckling the first part 111 and the second part 112. In some embodiments, the thermal management component 14 for adjusting the temperature of the battery cell 12 may be used as a part of the second part 112.

[0077] Optionally, the battery 100 may also include other structures, which are not described one by one here. For example, the battery 100 may also include a busbar component, which is used to realize electrical connection between multiple battery cells 12, such as parallel connection, series connection or mixed connection. Specifically, the busbar component can realize electrical connection between the battery cells 12 by connecting the electrode terminals of the battery cells 12. Furthermore, the busbar component can be fixed to the electrode terminals of the battery cells 12 by welding. The electrical energy of multiple battery cells 12 can be further led out through the box assembly 11 through a conductive mechanism. For example, the battery 100 may also include a bottom guard plate 19, which is arranged on the side of the box assembly 11 away from the closed chamber, which helps to reduce the risk of damage to the bottom of the box assembly 11 by impact of foreign objects.

[0078] According to different power requirements, the number of battery cells 12 can be set to any value. Multiple battery cells 12 can be connected in series, parallel or hybrid to achieve a larger capacity or power. Since the number of battery cells 12 included in each battery 100 may be large, for ease of installation, the battery cells 12 can be grouped, and each group of battery cells 12 constitutes a battery module. The number of battery cells 12 included in the battery module is not limited and can be set according to demand. The battery 100 may include multiple battery modules, which can be connected in series, parallel or hybrid.

[0079] According to some embodiments of this application, please refer to Figure 3-Figure 6 The present application provides a box 10, which includes a frame 13 and a heat management component 14, and the frame 13 is integrally cast. The edge of the heat management component 14 is embedded in the frame 13 and fixed to the frame 13, and the heat management component 14 and the frame 13 jointly define a receiving space 16 with an opening 161, and the receiving space 16 is used to receive the battery cell 12.

[0080] The thermal management component 14 is used to adjust the temperature of the battery cell 12, and generally has a channel for accommodating a heat exchange medium inside. The heat exchange medium is generally a fluid that adjusts the temperature of the battery cell 12. The fluid here can be a liquid or a gas, and adjusting the temperature refers to heating or dissipating heat from multiple battery cells 12. In the case of dissipating heat or cooling the battery cell 12, the heat exchange medium can also be called a cooling medium or a cooling fluid, and more specifically, it can be called a coolant or a cooling gas. In addition, the heat exchange medium can also heat the battery cell 12. Optionally, the fluid can be circulating to achieve a better temperature regulation effect. Optionally, the fluid can be water, a mixture of water and ethylene glycol, or air, etc.

[0081] The material of the frame 13 can be non-metal or metal. In the embodiment where the material of the frame 13 is metal, the material of the frame 13 can include but is not limited to aluminum, aluminum alloy, magnesium alloy, titanium alloy, steel, etc. In the embodiment where the material of the frame 13 is non-metal, the material of the frame 13 can include but is not limited to carbon fiber, plastic, etc.

[0082] The material of the thermal management component 14 can be non-metal or metal. In the embodiment where the material of the thermal management component 14 is metal, the material of the frame 13 can include but is not limited to aluminum, aluminum alloy, magnesium alloy, titanium alloy, steel, etc. In the embodiment where the material of the thermal management component 14 is non-metal, the material of the thermal management component 14 can include but is not limited to carbon fiber, plastic, etc.

[0083] The heat management component 14 and the frame 13 can be formed into the box body 10 by embedded casting. Embedded casting can also be called inlay casting, and the component formed by inlay casting can be called inlay casting. The embedded casting method can make the edge of the heat management component 14 embedded in the frame 13 and fixed to the frame 13. Such a design means that the heat management component 14 does not need to be locked with fasteners when connected to the frame 13.

[0084] The frame 13 is integrally cast, which means that there is no welding seam inside the frame 13 .

[0085] When molding the box body 10, the thermal management component 14 can be manufactured in advance, and then the thermal management component 14 is placed in the concave-convex mold, and liquid material is poured into the concave-convex mold. After the liquid material is cooled, an integrated frame 13 is formed and the connection between the frame 13 and the thermal management component 14 is completed.

[0086] The accommodation space 16 is used to accommodate the battery cell 12 . The thermal management component 14 is used to support the battery cell 12 . The battery cell 12 can be placed in the accommodation cavity through the opening 161 .

[0087] In some embodiments, at least a portion of the surface of the battery cell 12 is in contact with the thermal management component 14 .

[0088] In some embodiments, the battery cell 12 is bonded to the surface of the thermal management component 14 by thermally conductive adhesive.

[0089] In some embodiments, the battery cells 12 are connected to the thermal management component 14 via fasteners.

[0090] In the technical solution of the embodiment of the present application, after the frame 13 is formed by an integral casting method, the thermal management component 14 and the frame 13 are formed into a box body 10 by an embedded casting method, which reduces the number of welds and the amount of fasteners used, reduces the risk of deformation of the box body 10 and sealing failure during assembly, and is beneficial to improving the reliability of the battery 100.

[0091] According to some embodiments of the present application, the melting point of the frame 13 is lower than the melting point of the thermal management component 14 .

[0092] The melting point of the frame 13 is lower than the melting point of the thermal management component 14 , which means that the thermal management component 14 will not melt when the liquid material is poured.

[0093] In the above scheme, since the melting point of the frame 13 is lower than the melting point of the thermal management component 14, when the frame 13 and the thermal management component 14 are embedded in the casting, the risk of deformation of the thermal management component 14 when the frame 13 is formed is reduced, which is beneficial to improving the structural stability of the box 10.

[0094] According to some embodiments of this application, please refer to Figure 3-Figure 6 The material of the frame 13 includes aluminum, and the material of the thermal management component 14 includes steel.

[0095] The steel heat management component 14 generally still has a high structural strength after the molding process, while the frame 13 formed by pouring aluminum liquid is relatively light.

[0096] The energy density of the battery 100 refers to the electrical energy released per unit volume or mass of the battery 100. The greater the energy density of the battery 100, the more energy is stored per unit volume or weight. For example, under the premise that the total space occupied by the battery 100 remains unchanged, the larger the internal space of the battery 100 used to accommodate the battery cells 12, the greater the volume energy density of the battery 100. For example, under the premise that the internal space of the battery 100 used to accommodate the battery cells 12 remains unchanged, the smaller the total space occupied by the battery 100, the greater the volume energy density of the battery 100. For example, under the premise that the total mass of the battery 100 remains unchanged, the greater the mass of the battery cells 12, the greater the mass energy density of the battery 100. For example, under the premise that the mass of the battery cells 12 remains unchanged, the smaller the total mass of the battery 100, the greater the mass energy density of the battery 100.

[0097] In the above solution, using steel to manufacture the thermal management component 14 can improve the structural strength of the thermal management component 14 on the one hand, and reduce the production cost of the thermal management component 14 on the other hand. Using aluminum to manufacture the frame 13 is conducive to reducing the overall weight of the box 10 and improving the mass energy density of the battery 100.

[0098] According to some embodiments of this application, please refer to Figure 3-Figure 6 The thermal management component 14 includes a first plate body 141 and a second plate body 142 which are stacked. The first plate body 141 includes a main body 1412 and an edge portion 1411. The edge portion 1411 is arranged around the main body 1412. The edge portion 1411 is embedded in the frame 13 and fixed to the frame 13. The second plate body 142 is arranged on the side of the main body 1412 facing the accommodating space 16. A flow channel 17 for the flow of heat exchange medium is arranged between the main body 1412 and the second plate body 142.

[0099] The edge portion 1411 is the portion of the first plate body 141 embedded in the frame 13 .

[0100] The first plate body 141 may be in a flat plate shape or in a basin shape.

[0101] The first plate body 141 and the second plate body 142 can be formed by welding or bonding, or can be connected by fasteners.

[0102] The material of the first plate 141 may be the same as or different from the material of the second plate 142 .

[0103] The second plate 142 can be used to support the battery cells 12 .

[0104] The flow channel 17 may be formed by a pipeline disposed between the first plate body 141 and the second plate body 142 , or may be formed by a groove disposed in the first plate body 141 and / or a groove in the second plate body 142 .

[0105] In the above solution, only the edge 1411 of the first plate 141 of the thermal management component 14 is embedded in the frame 13 , which makes the molding difficulty of the box 10 relatively low and helps to improve the structural stability of the connection position between the thermal management component 14 and the frame 13 .

[0106] According to some embodiments of this application, please refer to Figure 3-Figure 6 The first plate body 141 also includes a transition portion 1413 , which connects the main body 1412 and the edge portion 1411 . The main body 1412 has a first surface 14121 facing the second plate body 142 . The transition portion 1413 and the edge portion 1411 both protrude from the first surface 14121 .

[0107] The transition portion 1413 connects the body 1412 and the edge portion 1411. The body 1412 has a first surface 14121 facing the second plate 142. The transition portion 1413 and the edge portion 1411 are both protruding from the first surface 14121, which means that the first plate 141 is in a basin shape, and there is a height difference between the edge portion 1411 and the body 1412. In the process of embedded casting of the thermal management component 14 and the frame 13, the existence of the height difference can make the positioning of the edge portion 1411 and the concave and convex molds more convenient. At the same time, the position where the height difference exists in the first plate 141 can provide a certain sealing surface thickness when sealing the thermal management component 14 and the frame 13, and provide a certain space for setting the sealing structure.

[0108] In the above scheme, the transition portion 1413 and the edge portion 1411 both protrude from the first surface 14121, which means that there is a height difference between the edge portion 1411 and the main body 1412, which is beneficial to reduce the difficulty of combining the edge portion 1411 with the frame 13, and at the same time can also simplify the sealing difficulty of the connection position between the thermal management component 14 and the frame 13.

[0109] According to some embodiments of this application, please refer to Figure 3-Figure 6 The edge portion 1411 includes a first section 14111 and a second section 14112. The first section 14111 extends from the transition portion 1413 in a direction away from the main body 1412, and the second section 14112 extends from the first section 14111 in a direction close to the opening 161. The first section 14111 and the second section 14112 are both embedded in the frame 13.

[0110] Please refer to Figure 6 The first section 14111 and the second section 14112 are L-shaped, and the L-shaped edge portion 1411 has a certain angle, so that the edge portion 1411 and the frame 13 are more stably embedded. The first section 14111 and the second section 14112 are both embedded in the frame 13, which means that at least part of the frame 13 will be located on the side of the edge portion 1411 away from the opening 161, and this part of the frame 13 can support the edge portion 1411.

[0111] In the above solution, the first section 14111 and the second section 14112 are both embedded in the frame 13, which means that at least part of the frame 13 is supported by the edge portion 1411, further improving the structural strength of the connection between the thermal management component 14 and the frame 13. At the same time, the second end and the first section 14111 extend in different directions, which is conducive to further improving the structural strength of the edge portion 1411 and the front and rear of the frame 13.

[0112] According to some embodiments of this application, please refer to Figure 3-Figure 6 A gap 18 is formed between the side of the transition portion 1413 away from the accommodating space 16 and the frame 13 , and the gap 18 is filled with colloid.

[0113] When filling the colloid, the existence of the gap 18 can limit the flow of the colloid, so that the thickness of the colloid is basically maintained at the designed value, thereby maintaining the thickness of the sealing structure at the designed thickness.

[0114] In the above solution, the existence of the gap 18 can limit the shape of the filling colloid, reducing the risk of sealing failure at the connection position between the thermal management component 14 and the frame 13 due to the disorderly distribution of the colloid, which is beneficial to improving the reliability of the battery 100.

[0115] According to some embodiments of this application, please refer to Figure 3-Figure 6 The frame 13 has a second surface 130 away from the opening 161 , the body 1412 has a third surface 14123 away from the opening 161 , and the second surface 130 is flush with the third surface 14123 .

[0116] Please refer to Figure 6 The second surface 130 is flush with the third surface 14123, which means that, at the bottom of the battery 100, the frame 13 will not protrude from the thermal management component 14, and the thermal management component 14 will not protrude from the frame 13. Under the premise that the volume of the accommodating space 16 for accommodating the battery cell 12 is certain and the thermal management component 14 is connected to the frame 13, it is beneficial to reduce the space occupied by the box 10 on the lower side of the battery 100.

[0117] In the above solution, the second surface 130 is flush with the third surface 14123 , which means that the surface of the frame 13 and the body 1412 away from the opening 161 are basically located in the same plane, which is beneficial to improving the volume energy density of the battery 100 .

[0118] According to some embodiments of this application, please refer to Figure 3-Figure 6 and Fig. 9 A first groove 14122 is provided on the side of the main body 1412 facing the second plate body 142 , and the second plate body 142 covers the first groove 14122 to form a flow channel 17 .

[0119] The first groove 14122 may be formed by machining, or the first groove 14122 may be formed together with the first plate 141 by stamping.

[0120] In the above solution, the flow channel 17 is formed by setting the first groove 14122, which has low processing difficulty and low cost.

[0121] According to some embodiments of this application, please refer to Figure 2-Figure 6 The present application provides a battery 100, which includes a box body 10, a battery cell 12 and a cover body 15 in one or more embodiments of the first aspect, wherein the battery cell 12 is accommodated in the box body 10. The cover body 15 is connected to the frame 13 and closes the opening 161.

[0122] In some embodiments, a plurality of battery cells 12 are provided.

[0123] The cover 15 can be a flat plate structure or a basin-shaped structure.

[0124] The cover body 15 can be connected to the frame 13 by welding, or by fasteners.

[0125] In the above scheme, since the housing 10 in one or more embodiments of the first aspect has high reliability, the battery 100 including the housing 10 in one or more embodiments of the first aspect also has high reliability.

[0126] According to some embodiments of this application, please refer to Figure 2-Figure 6 The frame 13 includes a first wing plate 131 , a second wing plate 132 and a web 133 , the web 133 connects the first wing plate 131 and the second wing plate 132 , and the cover body 15 is connected to the first wing plate 131 .

[0127] The frame 13 includes a first wing plate 131, a second wing plate 132 and a web 133. It can be understood that the cross-sectional shape of one side of the frame 13 is an inverted U-shape. When the height and mass of the frame 13 are constant, the above arrangement increases the area of ​​the cover 15 for connecting with the frame 13.

[0128] In the above solution, under the premise that the battery 100 has a high energy density, the provision of the first wing plate 131 can increase the area of ​​the region where the frame 13 can be connected to the cover 15, which is conducive to reducing the difficulty of connecting the cover 15 to the frame 13.

[0129] According to some embodiments of this application, please refer to Figure 3-Figure 8 The frame 13 includes a first boss 134, which is arranged on the side of the first wing plate 131 facing the cover body 15. The first boss 134 is provided with a first threaded hole, which passes through the first boss 134 and the first wing plate 131. The cover body 15 is connected to the first threaded hole through the first fastener 21.

[0130] The first fastener 21 may include, but is not limited to, a bolt assembly, a self-tapping screw, and the like.

[0131] In some embodiments, the first boss 134 , the first wing plate 131 , the second wing plate 132 and the web 133 are integrally formed.

[0132] In the above solution, the provision of the first boss 134 can increase the length of the first threaded hole, which is beneficial to improving the connection strength after the cover body 15 is connected to the frame 13 through the first fastener 21 .

[0133] According to some embodiments of this application, please refer to Figure 3-Figure 8 The battery 100 further includes a seal 20 , which is disposed between the cover 15 and the first wing plate 131 . A positioning hole 201 is disposed on the seal 20 , and at least a portion of the first boss 134 is located in the positioning hole 201 .

[0134] Please refer to Figure 4 and Figure 6 Due to the cooperation between the positioning hole 201 of the seal 20 and the first boss 134 , the provision of the first boss 134 does not increase the height dimension of the battery 100 .

[0135] In the above solution, when the first boss 134 is provided to increase the connection strength between the cover 15 and the frame 13, at least a portion of the first boss 134 is located in the positioning hole 201, which means that the seal 20 does not occupy additional space of the battery 100, which is beneficial to improving the volume energy density of the battery 100. At the same time, the cooperation between the positioning hole 201 and the first boss 134 can also simplify the assembly process of the seal 20 and reduce the difficulty of assembling the seal 20.

[0136] According to some embodiments of this application, please refer to Figure 3-Figure 8 A plurality of first bosses 134 are provided, and the plurality of first bosses 134 are distributed at intervals along the circumference of the frame 13 .

[0137] In the embodiment where the battery 100 includes the seal 20 , a plurality of first bosses 134 spaced apart circumferentially along the frame 13 may further limit the rotation of the seal 20 , thereby improving the assembly accuracy of the seal 20 and simplifying the assembly process of the seal 20 .

[0138] In some embodiments, the distances between two adjacent first bosses 134 are the same.

[0139] In the above solution, the provision of a plurality of first bosses 134 is beneficial to further improve the connection strength between the cover body 15 and the frame 13 .

[0140] According to some embodiments of this application, please refer to Figure 3-Figure 8 The battery 100 further includes a bottom guard plate 19 , which is disposed on a side of the thermal management component 14 away from the accommodating space 16 , and is connected to the second wing plate 132 .

[0141] When the height and mass of the frame 13 are constant, the provision of the second wing plate 132 increases the area of ​​the frame 13 used for connection with the bottom guard plate 19 .

[0142] Please refer to Figure 6 The bottom guard plate 19 can be connected to the second wing plate 132 by welding or bonding, or by fasteners.

[0143] The bottom guard plate 19 is disposed on the side of the thermal management component 14 away from the accommodating space 16 , which means that when foreign matter impacts the battery 100 , it will contact the bottom guard plate 19 first and will not directly impact the thermal management component 14 .

[0144] In the above solution, the bottom guard plate 19 can reduce the risk of damage to the thermal management component 14, which is beneficial to improving the reliability of the battery 100. At the same time, under the premise that the battery 100 has a high energy density, the second wing plate 132 can increase the area of ​​the region where the frame 13 can be connected to the bottom guard plate 19, which is beneficial to reducing the difficulty of connecting the bottom guard plate 19 to the frame 13.

[0145] According to some embodiments of this application, please refer to Figure 3-Figure 8 The frame 13 also includes a second boss 135, which is arranged on the side of the second wing plate 132 away from the bottom guard plate 19. The second boss 135 is provided with a second threaded hole, which passes through the second boss 135 and the second wing plate 132. The bottom guard plate 19 is connected to the second threaded hole through a second fastener 22.

[0146] The second fastener 22 may include, but is not limited to, a bolt assembly, a self-tapping screw, and the like.

[0147] In some embodiments, the first boss 134 , the second boss 135 , the first wing plate 131 , the second wing plate 132 , and the web 133 are integrally formed.

[0148] In some embodiments, the first boss 134 and the second boss 135 are spaced apart from each other along the circumference of the frame 13. Such a configuration is conducive to arranging longer first fasteners 21 and second fasteners 22 in a limited space, thereby reducing the risk of interference between the first fasteners 21 and the second fasteners 22 during assembly, and is conducive to improving the structural strength of the battery 100.

[0149] The second boss 135 is disposed on the side of the second wing plate 132 away from the bottom guard plate 19 , which means that when the first wing plate 131 and the second wing plate 132 exist, the second boss 135 will not occupy additional space under the battery 100 .

[0150] In the above solution, the second boss 135 is provided to increase the length of the second threaded hole, which is beneficial to improving the connection strength after the bottom guard plate 19 is connected to the frame 13 through the second fastener 22. At the same time, the second boss 135 is provided on the side of the second wing plate 132 away from the bottom guard plate 19, which will not occupy additional height space of the battery 100, which is beneficial to improving the volume energy density of the battery 100.

[0151] According to some embodiments of this application, please refer to Figure 3-Figure 8 A plurality of second bosses 135 are provided, and the plurality of second bosses 135 are distributed at intervals along the circumference of the frame 13 .

[0152] In some embodiments, the distances between two adjacent second bosses 135 are the same.

[0153] In the above solution, the provision of multiple second bosses 135 is beneficial to further improve the connection strength between the bottom guard plate 19 and the frame 13 .

[0154] In one or more embodiments of the second aspect, the frame 13 further includes a reinforcing rib 136 , which is disposed on an outer surface of the web 133 and connects the first wing plate 131 and the second wing plate 132 .

[0155] In some embodiments, the first boss 134 , the second boss 135 , the reinforcing rib 136 , the first wing plate 131 , the second wing plate 132 and the web 133 are integrally formed.

[0156] In some embodiments, a plurality of reinforcing ribs 136 are provided, and the plurality of reinforcing ribs 136 are spaced apart along the circumference of the frame 13 .

[0157] In the above solution, the provision of the reinforcing rib 136 is beneficial to improving the structural strength of the frame 13. At the same time, since the reinforcing rib 136 is located between the first wing plate 131 and the second wing plate 132, it will not occupy additional space in the height direction of the battery 100, which is beneficial to improving the volume energy density of the battery 100.

[0158] According to some embodiments of this application, please refer to Figure 1 , Figure 3-Figure 8 The frame 13 also includes a mounting portion 137, and the mounting portion 137 is used to mount the battery 100 on the electrical device body.

[0159] In some embodiments, the first boss 134 , the second boss 135 , the reinforcing rib 136 , the mounting portion 137 , the first wing plate 131 , the second wing plate 132 and the web 133 are integrally formed.

[0160] In some embodiments, a plurality of mounting portions 137 may be provided, and the plurality of mounting portions 137 are spaced apart along the circumference of the frame 13 .

[0161] In some embodiments, the mounting portion 137 , the reinforcing rib 136 , and the second boss 135 may partially overlap, which is beneficial for saving space.

[0162] In some embodiments, the electrical equipment body may be a frame of the vehicle 1000 .

[0163] In the above solution, the frame 13 has a relatively high structural strength, and the mounting portion 137 of the frame 13 also has a relatively high structural strength, which is beneficial to improving the stability of the battery 100 after being mounted on the electrical equipment body.

[0164] According to some embodiments of this application, please refer to Figure 1 The present application provides an electrical device, which includes the battery 100 in one or more of the above embodiments, and the battery 100 is used to provide electrical energy.

[0165] In the above scheme, since the battery 100 in one or more of the above embodiments has high reliability, the electrical equipment including the battery 100 in one or more of the above embodiments also has high reliability.

[0166] According to some embodiments of the present application, referring to Figure 3-Figure 6 and Fig. 9 The present application provides a box 10, which includes a frame 13 and a thermal management component 14, and the frame 13 is integrally cast. The edge of the thermal management component 14 is embedded in the frame 13 and fixed to the frame 13, and the thermal management component 14 and the frame 13 together define a receiving space 16 with an opening 161, and the receiving space 16 is used to receive the battery cell 12. The frame 13 is an aluminum frame, and the thermal management component 14 is a steel thermal management component.

[0167] The heat management component 14 includes a first plate body 141 and a second plate body 142 which are stacked. The first plate body 141 includes a main body 1412 and an edge portion 1411. The edge portion 1411 is arranged around the main body 1412. The edge portion 1411 is embedded in the frame 13 and fixed to the frame 13. The second plate body 142 is arranged on the side of the main body 1412 facing the accommodation space 16. A flow channel 17 for the flow of heat exchange medium is arranged between the main body 1412 and the second plate body 142. The first plate body 141 also includes a transition portion 1413, which connects the main body 1412 and the edge portion 1411. The main body 1412 has a first surface 14121 facing the second plate body 142. The transition portion 1413 and the edge portion 1411 both protrude from the first surface 14121. The edge portion 1411 includes a first section 14111 and a second section 14112. The first section 14111 extends from the transition portion 1413 in a direction away from the body 1412. The second section 14112 extends from the first section 14111 in a direction close to the opening 161. The first section 14111 and the second section 14112 are both embedded in the frame 13. A gap 18 is formed between the transition portion 1413 and the frame 13 on the side away from the accommodating space 16. The gap 18 is filled with colloid. The frame 13 has a second surface 130 away from the side of the opening 161. The body 1412 has a third surface 14123 away from the side of the opening 161. The second surface 130 is flush with the third surface 14123. A first groove 14122 is provided on the side of the body 1412 facing the second plate 142. The second plate 142 covers the first groove 14122 to form a flow channel 17.

[0168] When manufacturing the box 10, the first plate 141 is first processed into a predetermined shape and the first groove 14122 is punched out, and then the second plate 142 covers the first groove 14122 to form the flow channel 17, completing the processing of the thermal management component 14. Finally, the thermal management component 14 is placed in a concave-convex mold and aluminum liquid is poured into the concave-convex mold to form the frame 13 while completing the embedded casting of the frame 13 and the thermal management component 14 to form the box 10.

[0169] According to some embodiments of the present application, referring to Figure 3-Figure 9 The present application provides a battery 100, which includes a box body 10, a battery cell 12, a cover body 15, a seal 20, a bottom guard plate 19, a first fastener 21 and a second fastener 22. The battery cell 12 is accommodated in the box body 10. The cover body 15 is connected to the frame 13 and closes the opening 161. The box body 10 includes a frame 13 and a thermal management component 14. The edge of the thermal management component 14 is embedded in the frame 13 and fixed to the frame 13. The thermal management component 14 and the frame 13 jointly define a receiving space 16 with an opening 161. The receiving space 16 is used to accommodate the battery cell 12. The frame 13 is an aluminum frame, and the thermal management component 14 is a steel thermal management component.

[0170] The frame 13 includes a first wing plate 131, a second wing plate 132, a web 133, a first boss 134, a second boss 135, a reinforcing rib 136 and a mounting portion 137. The web 133 connects the first wing plate 131 and the second wing plate 132. The cover 15 is connected to the first wing plate 131. The first boss 134 is arranged on the side of the first wing plate 131 facing the cover 15. The first boss 134 is provided with a first threaded hole. The first threaded hole penetrates the first boss 134 and the first wing plate 131. The cover 15 is connected to the first threaded hole through a first fastener 21. The sealing member 20 is arranged between the cover 15 and the first wing plate 131. The sealing member 20 is provided with a positioning hole 201. At least part of the first boss 134 is located in the positioning hole 201. A plurality of first bosses 134 are provided, and the plurality of first bosses 134 are distributed at intervals along the circumference of the frame 13. The bottom guard plate 19 is arranged on the side of the heat management component 14 away from the accommodating space 16, and the bottom guard plate 19 is connected to the second wing plate 132. The second boss 135 is arranged on the side of the second wing plate 132 away from the bottom guard plate 19, and the second boss 135 is provided with a second threaded hole, and the second threaded hole penetrates the second boss 135 and the second wing plate 132, and the bottom guard plate 19 is connected to the second threaded hole through the second fastener 22. There are multiple second bosses 135, and the multiple second bosses 135 are distributed at intervals along the circumference of the frame 13. The reinforcing rib 136 is arranged on the outer surface of the web 133 and connects the first wing plate 131 and the second wing plate 132. The mounting portion 137 is used to mount the battery 100 on the electrical equipment body. Among them, the first wing plate 131, the second wing plate 132, the web 133, the first boss 134, the second boss 135, the reinforcing rib 136 and the mounting portion 137 are integrally cast. The heat management component 14 includes a first plate body 141 and a second plate body 142 which are stacked. The first plate body 141 includes a main body 1412 and an edge portion 1411. The edge portion 1411 is arranged around the main body 1412. The edge portion 1411 is embedded in the frame 13 and fixed to the frame 13. The second plate body 142 is arranged on the side of the main body 1412 facing the accommodation space 16. A flow channel 17 for the flow of heat exchange medium is arranged between the main body 1412 and the second plate body 142. The first plate body 141 also includes a transition portion 1413, which connects the main body 1412 and the edge portion 1411. The main body 1412 has a first surface 14121 facing the second plate body 142. The transition portion 1413 and the edge portion 1411 both protrude from the first surface 14121. The edge portion 1411 includes a first section 14111 and a second section 14112. The first section 14111 extends from the transition portion 1413 in a direction away from the body 1412, and the second section 14112 extends from the first section 14111 in a direction close to the opening 161. The first section 14111 and the second section 14112 are both embedded in the frame 13. A gap 18 is formed between the transition portion 1413 and the frame 13 on the side away from the accommodation space 16, and the gap 18 is filled with colloid.The frame 13 has a second surface 130 away from the opening 161, and the body 1412 has a third surface 14123 away from the opening 161. The second surface 130 is flush with the third surface 14123. The body 1412 is provided with a first groove 14122 on the side facing the second plate 142, and the second plate 142 covers the first groove 14122 to form a flow channel 17.

[0171] 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 box, characterized in that: include: A frame, the frame is integrally cast; A heat management component, the edge of which is embedded in the frame and fixed to the frame, the heat management component and the frame together define a receiving space with an opening, and the receiving space is used to receive a battery cell.

2. The box according to claim 1, characterized in that: The melting point of the frame is lower than the melting point of the heat management component.

3. The box according to claim 1, characterized in that: The frame is made of aluminum, and the thermal management component is made of steel.

4. The box according to claim 1, characterized in that: The thermal management component includes a first plate body and a second plate body which are stacked, the first plate body includes a main body and an edge portion, the edge portion is arranged around the main body, the edge portion is embedded in the frame and fixed to the frame, the second plate body is arranged on the side of the main body facing the accommodating space, and a flow channel for heat exchange medium to flow is arranged between the main body and the second plate body.

5. The box according to claim 4, characterized in that: The first plate body further includes a transition portion, which connects the main body and the edge portion. The main body has a first surface facing the second plate body. Both the transition portion and the edge portion protrude from the first surface.

6. The box according to claim 5, characterized in that: The edge portion includes a first section and a second section, the first section extends from the transition portion in a direction away from the body, the second section extends from the first section in a direction close to the opening, and the first section and the second section are both embedded in the frame.

7. The box according to claim 5, characterized in that: A gap is formed between the side of the transition portion facing away from the accommodating space and the frame, and the gap is filled with colloid.

8. The box according to claim 4, characterized in that: The frame has a second surface away from the opening, the body has a third surface away from the opening, and the second surface is flush with the third surface.

9. The box according to claim 4, characterized in that: A first groove is disposed on a side of the main body facing the second plate body, and the second plate body covers the first groove to form the flow channel.

10. A battery, characterized in that: include: The box as claimed in any one of claims 1 to 9; A battery cell is contained in the box; The cover body is connected to the frame and closes the opening.

11. The battery according to claim 10, characterized in that The frame includes a first wing plate, a second wing plate and a web plate, the web plate connects the first wing plate and the second wing plate, and the cover body is connected to the first wing plate.

12. The battery according to claim 11, characterized in that The frame includes a first boss, which is arranged on the side of the first wing plate facing the cover body. The first boss is provided with a first threaded hole, which passes through the first boss and the first wing plate. The cover body is connected to the first threaded hole through a first fastener.

13. The battery according to claim 12, characterized in that The battery further comprises a sealing member, wherein the sealing member is disposed between the cover body and the first wing plate, and a positioning hole is disposed on the sealing member, and at least a portion of the first boss is located in the positioning hole.

14. The battery according to claim 12, characterized in that A plurality of the first bosses are provided, and the plurality of the first bosses are distributed at intervals along the circumference of the frame.

15. The battery according to claim 11, characterized in that The battery further includes a bottom guard plate, which is disposed on a side of the thermal management component away from the accommodating space, and the bottom guard plate is connected to the second wing plate.

16. The battery according to claim 15, characterized in that The frame also includes a second boss, which is arranged on the side of the second wing plate away from the bottom guard plate. The second boss is provided with a second threaded hole, which passes through the second boss and the second wing plate. The bottom guard plate is connected to the second threaded hole through a second fastener.

17. The battery according to claim 16, characterized in that A plurality of the second bosses are provided, and the plurality of the second bosses are distributed at intervals along the circumference of the frame.

18. The battery according to claim 11, characterized in that The frame further includes a reinforcing rib, which is disposed on an outer surface of the web and connects the first wing plate and the second wing plate.

19. The battery according to any one of claims 10 to 18, characterized in that The frame also includes a mounting portion, and the mounting portion is used to mount the battery on a body of an electrical device.

20. An electrical equipment, characterized in that: The invention comprises a battery as claimed in any one of claims 10 to 19, wherein the battery is used to provide electrical energy.

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