Case, battery and electric device

Abstract

The present application relates to the field of batteries, and provides a case, a battery and an electric device. The case comprises an end plate, a panel and a medium flow channel, and the panel is connected to one end of the end plate. The medium flow channel is used for accommodating a heat exchange medium. The medium flow channel is at least partially located on the end plate. The medium flow channel is provided with a medium inlet and a medium outlet, and the medium inlet and / or the medium outlet are / is arranged on the panel. The case is provided with the medium flow channel for the heat exchange medium to pass therethrough to carry out thermal management on a device in the case. The medium flow channel is at least partially located on the end plate, the medium inlet and / or the medium outlet of the medium flow channel are / is arranged on the panel, and the heat exchange medium can directly enter and / or flow out of the medium flow channel through the medium inlet and / or the medium outlet on the panel, so that a reduced amount of pipeline or no pipeline can be used to connect the end plate and the panel, thereby reducing the occupancy of the internal space of the case by the pipeline, and helping to increase the energy density of the battery.

Description

Box, battery and electrical equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application entitled “Box, Battery and Electrical Equipment” filed on June 12, 2023 (Application Number: 2023214785971), the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the field of batteries, and more specifically, to a box, a battery, and an electrical device. Background Art

[0004] Batteries are widely used in new energy applications, such as electric vehicles and new energy vehicles. These have become a new trend in the automotive industry. The development of battery technology requires consideration of multiple design factors, including performance parameters such as battery life, discharge capacity, and charge / discharge rate. Furthermore, the battery's energy density must be considered. However, current batteries have a relatively low energy density.

[0005] Summary of the Invention

[0006] The purpose of the embodiments of the present application is to provide a box, a battery and an electrical device, which are intended to improve the problem of low energy density of batteries in related technologies.

[0007] In a first aspect, an embodiment of the present application provides a box body, which includes an end plate, a panel and a medium flow channel, wherein the panel is connected to one end of the end plate; the medium flow channel is used to accommodate a heat exchange medium, and the medium flow channel is at least partially located on the end plate. The medium flow channel has a medium inlet and a medium outlet, and the medium inlet and / or the medium outlet are arranged on the panel.

[0008] In the above technical solution, the housing is provided with a medium flow channel for passing a heat exchange medium to thermally manage the equipment within the housing. The medium flow channel is at least partially located in the end plate, and the medium inlet and / or medium outlet of the medium flow channel are provided on the face plate. The heat exchange medium can directly enter and / or exit the medium flow channel through the medium inlet and / or medium outlet on the face plate. This reduces or eliminates the need for piping connecting the end plate and the face plate, thereby reducing the internal space occupied by the piping within the housing and facilitating improved battery energy density.

[0009] As an optional technical solution of an embodiment of the present application, the medium flow channel includes a first flow channel and a second flow channel, the first flow channel is arranged on the end plate, the second flow channel is arranged on the panel, the second flow channel is connected to the first flow channel, and the second flow channel is formed with the medium inlet or the medium outlet on the panel.

[0010] In the above technical solution, a first flow channel is provided on the end plate, and a second flow channel is provided on the panel, and the first flow channel and the second flow channel are connected. In this way, the heat exchange medium can be supplied to the first flow channel on the end plate through the second flow channel on the panel, or the heat exchange medium in the first flow channel can be made to flow out through the second flow channel. The use of pipelines to connect the end plate and the panel can be reduced or eliminated, thereby reducing the occupation of the internal space of the box by the pipelines, which is beneficial to improving the energy density of the battery.

[0011] As an optional technical solution of an embodiment of the present application, the end plate includes a first surface, the first flow channel forms a first opening on the first surface, the panel includes a second surface, the second flow channel forms a second opening on the second surface, the first surface and the second surface are in contact with each other, and the first opening is at least partially opposite to the second opening, so that the first flow channel is connected to the second flow channel.

[0012] In the above technical solution, the first surface is bonded to the second surface so that the first opening of the first flow channel and the second opening of the second flow channel are at least partially opposite each other, thereby directly connecting the first flow channel and the second flow channel. This eliminates the need for piping to connect the first and second flow channels, reducing the internal space occupied by piping in the box and facilitating improved battery energy density.

[0013] As an optional technical solution of the embodiment of the present application, the second flow channel forms the medium inlet or the medium outlet on the surface of the panel facing away from the end plate.

[0014] In the above technical solution, the surface area of ​​the panel facing away from the end plate is relatively large, making it easier to install a medium inlet or outlet. Furthermore, the medium inlet has a large clearance when connected to the medium supply pipeline, and the medium outlet has a large clearance when connected to the medium outflow pipeline. This makes the medium supply pipeline or the medium outflow pipeline less likely to interfere with other components, simplifying installation and improving production efficiency.

[0015] As an optional technical solution of an embodiment of the present application, along a first direction, the panel is connected to one end of the end plate, and the second flow channel passes through two oppositely arranged surfaces of the panel along the first direction.

[0016] In the above technical solution, by having the second flow channel extend along the first direction through two opposing surfaces of the panel, manufacturing is facilitated. Furthermore, the second flow channel is shorter, allowing the heat exchange medium to enter the first flow channel more quickly for heat exchange with the equipment within the enclosure, resulting in more sensitive thermal management of the equipment within the enclosure, or allowing the heat exchange medium to exit the medium flow channel more quickly.

[0017] As an optional technical solution of an embodiment of the present application, the second flow channel includes a first section and a second section, the first section is connected to the second section, the end of the first section facing away from the second section forms the medium inlet or the medium outlet, the second section is connected to the first flow channel, the cross-section of the first section is circular, and the cross-sections of the second section and the first flow channel are both square.

[0018] In the above technical solution, the first section forms the medium inlet or outlet on the panel and is used to connect to the medium supply pipeline or the medium outlet pipeline. Therefore, the first section is designed with a circular cross-section to facilitate connection with the medium supply pipeline or the medium outlet pipeline. The second section is used to connect to the first flow channel. The cross-sections of the second section and the first flow channel are designed to be square, which helps reduce the flow rate of the heat exchange medium, allowing the heat exchange medium to more effectively exchange heat with the equipment within the box. In addition, during manufacturing, the cross-section of the first flow channel is designed to be square to reduce manufacturing difficulty and cost, thereby improving manufacturing efficiency. The cross-section of the second section is compatible with the cross-section of the first flow channel.

[0019] As an optional technical solution of an embodiment of the present application, the medium flow channel includes two second flow channels, the first flow channel connects the two second flow channels, one second flow channel forms the medium inlet on the panel, and the other second flow channel forms the medium outlet on the panel.

[0020] In the above technical solution, a first flow channel is provided on the end plate, and two independent second flow channels are provided on the panel. The first flow channel connects the two second flow channels. In this way, the heat exchange medium can be supplied to the first flow channel on the end plate through a second flow channel on the panel, and the heat exchange medium in the first flow channel can flow out through the other second flow channel. This can further reduce or eliminate the use of pipelines connecting the end plate and the panel, thereby reducing the occupation of the internal space of the box by the pipelines, which is beneficial to improving the energy density of the battery.

[0021] As an optional technical solution of an embodiment of the present application, along a first direction, the panel is connected to one end of the end plate, the panel includes a plate body and a connecting portion, the connecting portion protrudes from the plate body along the first direction, the connecting portion connects the end plate and the plate body, and the medium flow channel portion is formed in the connecting portion.

[0022] In the above technical solution, the connecting portion protrudes from the plate body in a first direction, thereby facilitating connection of the panel to the end plate via the connecting portion, for example, facilitating welding of the connecting portion to the end plate. The plate body is a wall that encloses the storage space of the box, and the medium flow channel is formed in the connecting portion. After the connecting portion is connected to the end plate, the medium flow channel is located outside the storage space, and the heat exchange medium in the medium flow channel is less likely to damage the equipment in the storage space.

[0023] As an optional technical solution of the embodiment of the present application, the connecting portion is provided with a mounting structure, and the mounting structure is used to install internal equipment, and the internal equipment is accommodated in the box.

[0024] In the above technical solution, by providing a mounting structure on the connecting portion, that is, integrating the mounting structure into the panel, it is easier to install and secure the internal equipment to the connecting portion. This reduces the number of equipment mounting beams, further simplifying the box components. Furthermore, the reduced number of equipment mounting beams also reduces the number of locations requiring welding, which helps simplify production and improve production efficiency.

[0025] As an optional technical solution of an embodiment of the present application, the mounting structure includes a mounting hole, and the mounting hole is provided with an internal thread.

[0026] In the above technical solution, the mounting structure is a mounting hole provided on the connecting portion, which helps simplify the structure of the box and reduce its weight. The mounting hole is provided with an internal thread, so that the internal device can mate with the mounting hole thread, thereby connecting the box body and the internal device. The connection method is simple, convenient and stable.

[0027] As an optional technical solution of the embodiment of the present application, the mounting hole is a blind hole.

[0028] In the above technical solution, the mounting hole is a blind hole, which means that the mounting hole will not pass through the connecting part, reducing the impact of the setting of the mounting hole on the structural strength of the connecting part. It is also unnecessary to perform sealing treatment at the mounting hole, reducing the manufacturing difficulty of the box.

[0029] As an optional technical solution of an embodiment of the present application, the connecting portion is provided with a plurality of the mounting structures, and the plurality of the mounting structures are arranged at intervals.

[0030] In the above technical solution, the connecting part is provided with a plurality of spaced-apart mounting structures, and a plurality of mounting positions can be formed between the connecting part and the internal equipment, which not only makes the connection between the box body and the internal equipment more stable, but also reduces the load borne by each mounting position.

[0031] As an optional technical solution of the embodiment of the present application, the connecting portion is provided with a mounting structure, and the mounting structure is used to connect the box body with an external device, and the external device is located outside the box body.

[0032] In the above technical solution, by providing a mounting structure on the connecting portion, that is, integrating both the mounting structure and the mounting structure into the panel, it is easier to mount and secure external devices to the connecting portion. This reduces the number of mounting beams, further simplifying the box components. Furthermore, the reduced number of mounting beams also reduces the number of locations requiring welding, which helps simplify production and improve production efficiency.

[0033] As an optional technical solution of an embodiment of the present application, the mounting structure includes a mounting hole, and the mounting hole is provided with an internal thread.

[0034] In the above technical solution, the mounting structure is a mounting hole provided on the connecting portion, which helps simplify the structure of the box and reduce its weight. The mounting hole is provided with an internal thread, so that the external device can mate with the mounting hole thread, thereby connecting the box body and the external device. The connection method is simple, convenient and stable.

[0035] As an optional technical solution of an embodiment of the present application, the mounting hole is a blind hole.

[0036] In the above technical solution, the mounting hole is a blind hole, which means that the mounting hole will not pass through the connecting part, reducing the impact of the setting of the mounting hole on the structural strength of the connecting part. It is also unnecessary to perform sealing treatment at the mounting hole, reducing the manufacturing difficulty of the box.

[0037] As an optional technical solution of an embodiment of the present application, the box body includes a mounting member arranged at the connecting portion, and the mounting structure is arranged on the mounting member.

[0038] In the above technical solution, the mounting structure is provided on the mounting part, and the box body and the external device can be connected through the mounting part, making the connection between the box body and the external device more convenient.

[0039] As an optional technical solution of the embodiment of the present application, the mounting part is welded to the connecting portion.

[0040] In the above technical solution, the mounting part and the connecting part are welded, which not only provides a convenient connection method, but also improves the connection strength between the mounting part and the connecting part, and has a greater load-bearing capacity.

[0041] As an optional technical solution of an embodiment of the present application, the mounting part is a sleeve having an internal thread.

[0042] In the above technical solution, the mounting part is a sleeve and an internal thread is provided in the sleeve. The mounting part cooperates with the thread of the external device to mount the box on the external device. The mounting method is simple, convenient and stable.

[0043] As an optional technical solution of an embodiment of the present application, the connecting portion is provided with a plurality of the mounting structures, and the plurality of the mounting structures are arranged at intervals.

[0044] In the above technical solution, the box includes multiple mounting structures arranged at intervals, and multiple mounting positions can be formed between the box and the external device, which not only makes the connection between the box and the external device more stable, but also reduces the load borne by each mounting position.

[0045] As an optional technical solution of the embodiment of the present application, the plate body and the connecting portion are integrally formed.

[0046] In the above technical solution, by forming the plate body and the connecting portion as one piece, the integrity is better and the strength of the panel is higher.

[0047] As an optional technical solution of the embodiment of the present application, the box body includes a side panel, which is arranged opposite to the panel and connected to the other end of the end panel.

[0048] In the above technical solution, a panel and a side panel opposite to the panel are arranged on the end wall. On the one hand, the structural strength of the box can be improved, and on the other hand, the accommodating space for internal equipment can be limited so that the internal equipment can be stably assembled in the box. On still another hand, the panel and the side panel protrude from the surface of the end plate. When the internal equipment is bonded to the end plate with glue, the glue overflow space can be effectively controlled, thereby reducing the risk of waste and environmental pollution caused by glue overflow.

[0049] As an optional technical solution of an embodiment of the present application, the box body includes a first box body and a second box body, and the first box body and the second box body are separately arranged and connected; wherein, the second box body includes the end plate, the panel and the side plate, and the first box body, the end plate, the panel and the side plate jointly define a accommodating space.

[0050] In the above technical solution, by providing the first box body and the second box body, it is convenient to manufacture and assemble the box body separately. The end plate, the panel and the side plate are all located in the second box body.

[0051] In a second aspect, an embodiment of the present application further provides a battery, comprising a battery cell and the above-mentioned box body, wherein the battery cell is accommodated in the box body.

[0052] In a third aspect, an embodiment of the present application further provides an electric device, which includes the above-mentioned battery, and the battery is used to provide electrical energy to the electric device. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0054] FIG1 is a schematic structural diagram of a vehicle provided in some embodiments of the present application;

[0055] FIG2 is a schematic structural diagram of a box provided in some embodiments of the present application;

[0056] FIG3 is an exploded view of a box provided in some embodiments of the present application;

[0057] FIG4 is a schematic structural diagram of a second box provided in some embodiments of the present application;

[0058] FIG5 is a cross-sectional view of a second box provided in some embodiments of the present application;

[0059] FIG6 is a schematic structural diagram of a second box provided in some other embodiments of the present application;

[0060] FIG7 is a cross-sectional view of a second box provided in some other embodiments of the present application;

[0061] FIG8 is a schematic structural diagram of a second box provided in some other embodiments of the present application;

[0062] FIG9 is a cross-sectional view of a second box provided in some other embodiments of the present application;

[0063] FIG10 is a schematic top view of a second box provided in some embodiments of the present application;

[0064] FIG11 is a cross-sectional view taken along line AA in FIG10 ;

[0065] FIG12 is a bottom view of a second housing provided in some embodiments of the present application;

[0066] FIG13 is a cross-sectional view taken along line BB in FIG12 ;

[0067] FIG14 is a bottom view of a second box provided in some other embodiments of the present application;

[0068] FIG15 is a cross-sectional view taken along the CC axis in FIG14 ;

[0069] FIG16 is an enlarged view of position D in FIG15 .

[0070] Icons: 10-box; 11-first box; 12-second box; 121-end plate; 1211-first surface; 122-panel; 1221-plate; 1222-connecting part; 12221-second surface; 1231-second flow channel; 12311-first section; 12312-second section; 1232-first flow channel; 1234-medium inlet; 1235-medium outlet; 124-installation structure; 125-mounting structure; 126-mounting part; 127-side panel; 13-seal; 100-battery; 200-controller; 300-motor; 1000-vehicle. DETAILED DESCRIPTION

[0071] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0072] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first" and "second" in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary-secondary relationship.

[0073] References to "embodiments" in this application mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments.

[0074] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "attached" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0075] The term "and / or" in this application simply describes an association between related objects, indicating that three possible relationships exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects are in an "or" relationship.

[0076] In the embodiments of this application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components in different embodiments are omitted. It should be understood that the thickness, length, width, and other dimensions of the various components in the embodiments of this application, as well as the overall thickness, length, width, and other dimensions of the integrated device shown in the drawings are merely illustrative and should not constitute any limitation on this application.

[0077] The term "plurality" used in this application refers to two or more (including two).

[0078] 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. For example, the battery mentioned in the present application may include a battery module or a battery pack, etc. The battery generally includes a casing for encapsulating one or more battery cells. The casing can prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells to a certain extent. The battery cells may include lithium-ion secondary battery cells, lithium-ion primary battery cells, lithium-sulfur battery cells, sodium-lithium-ion battery cells, sodium-ion battery cells or magnesium-ion battery cells, etc.

[0079] Currently, market developments indicate that batteries are increasingly being used. They are not only used in energy storage systems such as hydropower, thermal, wind, and solar power plants, but are also widely used in electric vehicles like electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. As battery applications continue to expand, market demand is also growing.

[0080] The development of battery technology requires simultaneous consideration of multiple design factors, including performance parameters such as battery life, discharge capacity, and charge / discharge rate. Furthermore, the battery's energy density must be considered. However, current batteries have a relatively low energy density.

[0081] Battery cells generate a significant amount of heat during operation, causing their temperature to rise. When the temperature rises to a certain level, it can affect their performance. If the temperature continues to rise, thermal runaway can occur, causing fire or even explosion. Related technologies use water-cooled plates to dissipate heat from battery cells. However, placing the water-cooled plates inside the battery box takes up space inside the box and reduces the battery's energy density.

[0082] To increase the energy density of the battery, the related art sets a water-cooling channel inside the base plate, and forms a water-cooling inlet and a water-cooling outlet by opening two first through-holes on the upper surface of the base plate. In order to introduce water into and out of the water-cooling channel, two pipes are provided, connecting the water-cooling inlet and the water-cooling outlet respectively, and a second through-hole for the pipe to pass through the box body is opened on the panel connected to one end of the base plate. Although this can improve the energy density of the battery to a certain extent, the pipes will still occupy a portion of the internal space of the box body, resulting in a lower energy density of the battery.

[0083] In view of this, embodiments of the present application provide a housing comprising an end plate, a panel, and a medium flow channel, wherein the panel is connected to one end of the end plate. The medium flow channel is used to accommodate a heat exchange medium. The medium flow channel is at least partially located in the end plate. The medium flow channel has a medium inlet and a medium outlet, and the medium inlet and / or the medium outlet are disposed on the panel.

[0084] The housing is provided with a medium flow channel for passing a heat exchange medium to thermally manage the equipment within the housing. The medium flow channel is at least partially located in the end plate, with the medium inlet and / or outlet of the medium flow channel provided on the panel. The heat exchange medium can be directly introduced into and / or exited from the medium flow channel through the medium inlet and / or outlet on the panel, thereby reducing or eliminating the need for piping connecting the end plate and the panel, thereby reducing the internal space occupied by the piping within the housing and facilitating improved battery energy density.

[0085] The technical solutions described in the embodiments of the present application are applicable to batteries and electrical devices using batteries.

[0086] Electrically powered devices may include vehicles, mobile phones, portable devices, laptop computers, ships, spacecraft, electric toys, and electric tools. Spacecraft include airplanes, rockets, space shuttles, and spacecraft. Electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys. Electric tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers. The embodiments of the present application do not impose any special restrictions on the above-mentioned electrical devices.

[0087] For the convenience of description, the following embodiments are described by taking the electric device as a vehicle as an example.

[0088] Please refer to Figure 1, which is a schematic structural diagram of a vehicle 1000 provided in some embodiments of the present application. The vehicle 1000 can be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 100 is provided inside the vehicle 1000, and the battery 100 can be provided at the bottom, head or tail of the vehicle 1000. The battery 100 can be used to power the vehicle 1000. For example, the battery 100 can serve as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300. The controller 200 is used to control the battery 100 to power the motor 300, for example, for starting, navigating and driving the vehicle 1000.

[0089] In some embodiments of the present application, the battery 100 can serve not only as an operating power source for the vehicle 1000, but also as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0090] Please refer to Figures 2 and 3. Figure 2 is a schematic diagram of the structure of the housing 10 provided in some embodiments of the present application. Figure 3 is an exploded view of the housing 10 provided in some embodiments of the present application. The battery 100 includes a housing 10 and battery cells, which are housed within the housing 10. The housing 10 is used to provide a storage space for the battery cells, and the housing 10 can adopt various structures. In some embodiments, the housing 10 can include a first housing 11 and a second housing 12, which cover each other and together define a storage space for the battery cells. The second housing 12 can be a hollow structure with one end open. The first housing 11 can be a plate-like structure, which covers the open side of the second housing 12, so that the first housing 11 and the second housing 12 jointly define a storage space. The first housing 11 and the second housing 12 can also be hollow structures with one end open, with the open side of the first housing 11 covering the open side of the second housing 12. Referring to Figures 2 and 3 , in the embodiment shown in the figures, the first housing 11 and the second housing 12 are both U-shaped. The open end of the first housing 11 covers the open end of the second housing 12. Of course, the housing 10 formed by the first housing 11 and the second housing 12 can have various shapes, such as a cylinder, a rectangular parallelepiped, etc.

[0091] In the battery 100, there may be multiple battery cells, which may be connected in series, in parallel, or in a hybrid connection. A hybrid connection refers to a combination of series and parallel connections. Multiple battery cells may be directly connected in series, in parallel, or in a hybrid connection, and then the entire battery cell structure may be housed within the housing 10. Of course, the battery 100 may also be a battery module structure formed by first connecting multiple battery cells in series, in parallel, or in a hybrid connection, and then the multiple battery modules may be connected in series, in parallel, or in a hybrid connection to form a single unit, which is then housed within the housing 10. The battery 100 may also include other structures, such as a busbar assembly for electrically connecting the multiple battery cells.

[0092] Each battery cell can be a secondary battery cell or a primary battery cell; it can also be a lithium-sulfur battery cell, a sodium-ion battery cell, or a magnesium-ion battery cell, but is not limited thereto. The battery cell can be cylindrical, flat, rectangular, or in other shapes.

[0093] Please refer to Figures 2, 3, 4 and 5. Figure 4 is a schematic structural diagram of the second box body 12 provided in some embodiments of the present application. Figure 5 is a cross-sectional view of the second box body 12 provided in some embodiments of the present application. The embodiment of the present application provides a box body 10, which includes an end plate 121, a panel 122 and a medium flow channel, and the panel 122 is connected to one end of the end plate 121. The medium flow channel is used to accommodate a heat exchange medium, and the medium flow channel is at least partially located on the end plate 121. The medium flow channel has a medium inlet 1234 and a medium outlet 1235, and the medium inlet 1234 and / or the medium outlet 1235 are provided on the panel 122.

[0094] End plate 121 can be any wall of the enclosure 10. To enhance the heat exchange between the heat exchange medium in the medium flow channel and the equipment within the enclosure 10, end plate 121 can be the wall with the largest area within the enclosure 10. Alternatively, end plate 121 can be the bottom plate of the enclosure 10. This allows end plate 121 to conform to the equipment within the enclosure 10, thereby enhancing heat exchange.

[0095] The panel 122 is a wall connected to one end of the end plate 121. When the end plate 121 is the bottom plate of the box body 10, the panel 122 can be a wall for setting high-pressure output and low-pressure output.

[0096] The medium flow channel is a passage for the flow of a heat exchange medium. The heat exchange medium exchanges heat with the equipment within the housing 10, thereby managing the temperature of the equipment within the housing 10. The heat exchange medium can be a liquid medium, such as water or oil. Alternatively, the heat exchange medium can be a gaseous medium, such as air.

[0097] The medium flow channel may be partially provided on the end plate 121 and partially provided on the panel 122. The medium flow channel may also be entirely located within the end plate 121. In this case, a pipeline may be connected to the medium flow channel to supply heat exchange medium to the medium flow channel or to allow the heat exchange medium in the medium flow channel to flow out.

[0098] The medium inlet 1234 is an opening for heat exchange medium to flow into the medium flow channel. The medium outlet 1235 is an opening for heat exchange medium to flow out of the medium flow channel. Generally, the medium flow channel is provided with one medium inlet 1234 and one medium outlet 1235, with the medium inlet 1234 and the medium outlet 1235 located at either end of the medium flow channel. Of course, multiple medium inlets 1234 and / or multiple medium outlets 1235 may also be provided.

[0099] In the present application, the panel 122 may be provided with only a medium inlet 1234 , only a medium outlet 1235 , or both a medium inlet 1234 and a medium outlet 1235 , and the number of the medium inlets 1234 and the medium outlets 1235 is not limited.

[0100] The housing 10 is provided with a medium flow channel for passing a heat exchange medium to thermally manage the equipment within the housing 10. The medium flow channel is at least partially located on the end plate 121. The medium inlet 1234 and / or medium outlet 1235 of the medium flow channel are provided on the panel 122. The heat exchange medium can directly enter and / or exit the medium flow channel through the medium inlet 1234 and / or medium outlet 1235 on the panel 122. This reduces or eliminates the need for pipelines connecting the end plate 121 and the panel 122, thereby reducing the internal space occupied by the pipelines in the housing 10 and facilitating an increase in the energy density of the battery 100.

[0101] 4 and 5 , in some embodiments, the medium flow channel includes a first flow channel 1232 and a second flow channel 1231. The first flow channel 1232 is disposed on the end plate 121, and the second flow channel 1231 is disposed on the panel 122. The second flow channel 1231 is connected to the first flow channel 1232. The second flow channel 1231 has a medium inlet 1234 or a medium outlet 1235 formed on the panel 122.

[0102] The first flow channel 1232 is a portion of the medium flow channel disposed on the end plate 121. The second flow channel 1231 is a portion of the medium flow channel disposed on the panel 122. One end of the second flow channel 1231 forms a medium inlet 1234 or a medium outlet 1235 on the panel 122, and the other end of the second flow channel 1231 is connected to the first flow channel 1232.

[0103] “The second flow channel 1231 is connected to the first flow channel 1232 ” may mean that the second flow channel 1231 is directly connected to the first flow channel 1232 , or the second flow channel 1231 is indirectly connected to the first flow channel 1232 , for example, the second flow channel 1231 is indirectly connected to the first flow channel 1232 through a pipeline.

[0104] Please refer to Figures 4 and 5. In the embodiments shown in Figures 4 and 5, the second flow channel 1231 is directly connected to the first flow channel 1232, and no pipeline is required between the second flow channel 1231 and the first flow channel 1232, thereby reducing the occupation of the internal space of the box 10 by the pipeline, which is beneficial to improving the energy density of the battery 100.

[0105] A first flow channel 1232 is provided on the end plate 121, and a second flow channel 1231 is provided on the panel 122. The first flow channel 1232 and the second flow channel 1231 are connected. In this way, the heat exchange medium can be supplied to the first flow channel 1232 on the end plate 121 through the second flow channel 1231 on the panel 122, or the heat exchange medium in the first flow channel 1232 can flow out through the second flow channel 1231. The use of pipelines to connect the end plate 121 and the panel 122 can be reduced or eliminated, thereby reducing the occupation of the internal space of the box body 10 by the pipelines, which is beneficial to improving the energy density of the battery 100.

[0106] 4 and 5 , in some embodiments, the end plate 121 includes a first surface 1211, and the first flow channel 1232 forms a first opening on the first surface 1211. The panel 122 includes a second surface 12221, and the second flow channel 1231 forms a second opening on the second surface 12221. The first surface 1211 and the second surface 12221 are aligned, and the first opening and the second opening are at least partially opposed to each other, so that the first flow channel 1232 and the second flow channel 1231 are connected.

[0107] The first surface 1211 refers to the surface of the end plate 121 facing the panel 122 , and the second surface 12221 refers to the surface of the panel 122 facing the end plate 121 .

[0108] The first flow channel 1232 extends to the first surface 1211, forming a first opening on the first surface 1211. The second flow channel 1231 extends to the second surface 12221, forming a second opening on the second surface 12221. Optionally, one end of the second flow channel 1231 forms a medium inlet 1234 or a medium outlet 1235 on the panel 122, and the other end of the second flow channel 1231 forms a second opening on the second surface 12221.

[0109] When the panel 122 is connected to the end plate 121, the first surface 1211 and the second surface 12221 are in contact with each other, and the first opening and the second opening are at least partially opposite to each other, so that the first flow channel 1232 and the second flow channel 1231 are connected, and the heat exchange medium can enter the first flow channel 1232 from the second flow channel 1231 through the second opening and the first opening, or the heat exchange medium can enter the second flow channel 1231 from the first flow channel 1232 through the first opening and the second opening.

[0110] It should be noted that "the first opening and the second opening are at least partially opposite" include both partial and complete opposite scenarios. When the first opening and the second opening are completely opposite, the projections of the first opening and the second opening may completely overlap, or the projection of one may fall within the projection of the other.

[0111] The first surface 1211 is aligned with the second surface 12221, so that the first opening of the first flow channel 1232 and the second opening of the second flow channel 1231 are at least partially opposite each other, thereby directly connecting the first flow channel 1232 and the second flow channel 1231. In this way, there is no need to use a pipeline to connect the first flow channel 1232 and the second flow channel 1231, which reduces the internal space occupied by the pipeline in the box 10 and helps to improve the energy density of the battery 100.

[0112] 4 and 5 , in some embodiments, the second flow channel 1231 forms a medium inlet 1234 or a medium outlet 1235 on a surface of the panel 122 facing away from the end plate 121 .

[0113] Along the first direction, the panel 122 is connected to one end of the end plate 121. Referring to Figures 4 and 5, the first direction may be the x direction shown in the figures.

[0114] Along the first direction, the panel 122 has a second surface 12221 and a third surface opposite to each other, wherein the second surface 12221 faces the end plate 121 and the third surface faces away from the end plate 121 . The medium inlet 1234 or the medium outlet 1235 is formed on the third surface.

[0115] The surface area of ​​panel 122 facing away from end plate 121 is relatively large, making it convenient to arrange medium inlet 1234 or medium outlet 1235. Furthermore, medium inlet 1234 has a large clearance when connected to a medium supply line, and medium outlet 1235 has a large clearance when connected to a medium outlet line. This makes it less likely for the medium supply line or the medium outlet line to interfere with other components, simplifying installation and improving production efficiency.

[0116] In other embodiments, referring to FIG. 4 and FIG. 5 , a sink may be provided on a side of the panel 122 away from the end plate 121 , and the medium inlet 1234 or the medium outlet 1235 may be provided on the bottom wall of the sink.

[0117] 4 and 5 , in some embodiments, the panel 122 is connected to one end of the end plate 121 along a first direction, and the second flow channel 1231 penetrates two oppositely disposed surfaces of the panel 122 along the first direction.

[0118] Along the first direction, the panel 122 is connected to one end of the end plate 121. Referring to Figures 4 and 5, the first direction may be the x direction shown in the figures.

[0119] The second flow channel 1231 extends along the first direction and can extend from the surface of the panel 122 facing away from the end plate 121 to the surface of the panel 122 facing the end plate 121, that is, from the third surface to the second surface 12221. In this case, the second flow channel 1231 is a straight flow channel.

[0120] By having the second flow channel 1231 pass through two oppositely disposed surfaces of the panel 122 along the first direction, on the one hand, processing and manufacturing are facilitated. On the other hand, the second flow channel 1231 is shorter, allowing the heat exchange medium to enter the first flow channel 1232 more quickly to exchange heat with the equipment inside the housing 10, thereby increasing the sensitivity of thermal management of the equipment inside the housing 10, or allowing the heat exchange medium to leave the medium flow channel more quickly.

[0121] In other embodiments, the second flow channel 1231 may be a curved or zigzag flow channel. For example, the second flow channel 1231 may include a first portion, a second portion, and a third portion, wherein the first portion extends along a first direction, the second portion extends in a direction perpendicular to the first direction, and the third portion further extends along the first direction. The second portion connects the first and second portions. The first portion forms a medium inlet 1234 or a medium outlet 1235 on the panel 122, and the third portion forms a second opening on the panel 122.

[0122] 4 and 5 , in some embodiments, the second flow channel 1231 includes a first section 12311 and a second section 12312, with the first section 12311 communicating with the second section 12312. The end of the first section 12311 facing away from the second section 12312 forms a medium inlet 1234 or a medium outlet 1235, and the second section 12312 communicates with the first flow channel 1232. The first section 12311 has a circular cross-section, while the second section 12312 and the first flow channel 1232 both have square cross-sections.

[0123] The first section 12311 and the second section 12312 are respectively two parts of the second flow channel 1231, wherein the first section 12311 is further away from the first flow channel 1232 than the second section 12312. One end of the first section 12311 forms a medium inlet 1234 or a medium outlet 1235 on the panel 122, and the other end of the first section 12311 can be connected to the second section 12312. The second section 12312 connects the first section 12311 and the first flow channel 1232. Optionally, one end of the second section 12312 is connected to the first section 12311, and the other end of the second section 12312 forms a second opening on the panel 122.

[0124] The term "cross section of the first segment 12311" refers to a cross section of the first segment 12311 perpendicular to its extension direction. Similarly, the term "cross section of the second segment 12312 and the first flow channel 1232" refers to a cross section of the second segment 12312 and the first flow channel 1232 perpendicular to their extension directions.

[0125] The first section 12311 forms a medium inlet 1234 or a medium outlet 1235 on the panel 122. The first section 12311 is used to communicate with the medium supply pipeline or the medium outlet pipeline. Therefore, the cross-section of the first section 12311 is set to a circular shape to facilitate connection with the medium supply pipeline or the medium outlet pipeline. The second section 12312 is used to communicate with the first flow channel 1232. The cross-sections of the second section 12312 and the first flow channel 1232 are set to a square shape. This helps reduce the flow rate of the heat exchange medium, allowing the heat exchange medium to more fully exchange heat with the equipment within the housing 10. In addition, during manufacturing, the cross-section of the first flow channel 1232 is set to a square shape to reduce manufacturing difficulty and cost and improve manufacturing efficiency. The cross-section of the second section 12312 is compatible with the cross-section of the first flow channel 1232.

[0126] 4 and 5 , in some embodiments, the medium flow channel includes two second flow channels 1231 , and the first flow channel 1232 connects the two second flow channels 1231 . One second flow channel 1231 has a medium inlet 1234 formed on the panel 122 , and the other second flow channel 1231 has a medium outlet 1235 formed on the panel 122 .

[0127] A first flow channel 1232 is provided on the end plate 121, and two independent second flow channels 1231 are provided on the panel 122. The first flow channel 1232 connects the two second flow channels 1231. In this way, the heat exchange medium can be supplied to the first flow channel 1232 on the end plate 121 through a second flow channel 1231 on the panel 122, and the heat exchange medium in the first flow channel 1232 flows out through the other second flow channel 1231. The connection between the end plate 121 and the panel 122 can be further reduced or eliminated, thereby reducing the occupation of the internal space of the box body 10 by the pipeline, which is beneficial to improving the energy density of the battery 100.

[0128] Please refer to Figures 6 and 7. Figure 6 is a schematic structural diagram of the second housing 12 provided in other embodiments of the present application. Figure 7 is a cross-sectional view of the second housing 12 provided in other embodiments of the present application. In other embodiments, only one second flow channel 1231 is provided on the panel 122, and the second flow channel 1231 has a medium inlet 1234 formed on the panel 122.

[0129] Please refer to Figures 8 and 9. Figure 8 is a schematic structural diagram of the second housing 12 provided in some further embodiments of the present application. Figure 9 is a cross-sectional view of the second housing 12 provided in some further embodiments of the present application. In some further embodiments, only one second flow channel 1231 is provided on the panel 122, and the second flow channel 1231 has a medium outlet 1235 formed on the panel 122.

[0130] Referring to Figures 8 and 9, in some embodiments, panel 122 is connected to one end of end plate 121 along a first direction. Panel 122 includes a plate body 1221 and a connecting portion 1222. Connecting portion 1222 protrudes from plate body 1221 along the first direction and connects end plate 121 and plate body 1221. A medium flow channel is formed in connecting portion 1222.

[0131] The plate body 1221 is a plate-shaped structure and is used to enclose together with other walls of the box body 10 to form a receiving space.

[0132] The connecting portion 1222 is a portion of the panel 122 for connecting to the end plate 121. Along the first direction, the connecting portion 1222 protrudes from the plate body 1221. Optionally, the plate body 1221 and the connecting portion 1222 are connected to form an L-shaped structure.

[0133] A portion of the medium flow channel is formed in the end plate 121, and a portion of the medium flow channel is formed in the connecting portion 1222. The medium flow channel may be partially located in the plate body 1221, or may not be located in the plate body 1221.

[0134] By having the connection portion 1222 protrude from the plate body 1221 in a first direction, the panel 122 can be connected to the end plate 121 via the connection portion 1222, for example, by welding the connection portion 1222 to the end plate 121. The plate body 1221 is a wall that encloses the storage space of the housing 10. The medium flow channel is formed in the connection portion 1222. After the connection portion 1222 is connected to the end plate 121, the medium flow channel is located outside the storage space, and the heat exchange medium in the medium flow channel is unlikely to damage the equipment in the storage space.

[0135] Please refer to Figures 10 and 11. Figure 10 is a schematic top view of the second housing 12 provided in some embodiments of the present application. Figure 11 is a cross-sectional view taken along line AA in Figure 10. In some embodiments, the connection portion 1222 is provided with a mounting structure 124 for mounting internal equipment. The internal equipment is housed within the housing 10.

[0136] The mounting structure 124 is a structure for mounting and fixing the internal device to the box body 10. The internal device may be a battery cell, a battery module, or the like.

[0137] The mounting structure 124 may be a through hole, a blind hole, a threaded hole, a hook, a slide rail, a guide rail, a lock, or the like. The mounting structure 124 may be formed directly on the connecting portion 1222, or may be integrally formed with the connecting portion 1222. For example, the mounting structure 124 may be a threaded hole machined into the connecting portion 1222, or the mounting structure 124 may be a track extruded integrally with the connecting portion 1222. The mounting structure 124 may also be formed on another component connected to the connecting portion 1222, such as a threaded hole in a component such as a sleeve or nut, or the mounting structure 124 may be a track on a guide rail.

[0138] By providing mounting structure 124 on connecting portion 1222, that is, integrating mounting structure 124 into panel 122, internal equipment can be easily mounted and secured to connecting portion 1222. This reduces the number of equipment mounting beams, further simplifying the components of cabinet 10. Furthermore, the reduced number of equipment mounting beams also reduces the number of locations requiring welding, simplifying production and improving production efficiency.

[0139] 10 and 11 , in some embodiments, the mounting structure 124 includes a mounting hole.

[0140] The mounting hole can be directly provided in the connection portion 1222. Along the thickness direction of the connection portion 1222, the mounting hole is recessed from the surface of the connection portion 1222 facing the inner side of the box body 10 to the surface away from the inner side of the box body 10. The mounting hole can be a round hole, a square hole, a hexagonal hole, etc.

[0141] The number of the mounting holes can be one or more, where "more" means two or more. In an embodiment where there are multiple mounting holes, the multiple mounting holes are arranged at intervals.

[0142] The mounting structure 124 is a mounting hole provided on the connecting portion 1222 , which is helpful in simplifying the structure of the box body 10 and reducing the weight of the box body 10 .

[0143] In some embodiments, the mounting hole is provided with internal threads.

[0144] The mounting hole is provided with an internal thread, and the internal device can cooperate with the mounting hole thread, thereby realizing the connection between the box body and the internal device. The connection method is simple and convenient, and has good stability.

[0145] In other embodiments, the wall surface of the mounting hole is a smooth plane or a curved surface.

[0146] 10 and 11 , in some embodiments, the mounting hole is a blind hole.

[0147] The mounting hole is a blind hole, which means that the mounting hole will not pass through the connecting portion 1222, reducing the impact of the setting of the mounting hole on the structural strength of the connecting portion 1222. It also does not require sealing treatment at the mounting hole, reducing the manufacturing difficulty of the box 10.

[0148] In other embodiments, the mounting hole may also be a through hole.

[0149] 10 and 11 , in some embodiments, the connection portion 1222 is provided with a plurality of mounting structures 124 , and the plurality of mounting structures 124 are arranged at intervals.

[0150] The plurality of mounting structures 124 may be arranged at intervals along a direction perpendicular to the first direction or in a matrix arrangement.

[0151] The connecting portion 1222 is provided with a plurality of spaced apart mounting structures 124, and a plurality of mounting positions can be formed between the connecting portion 1222 and the internal equipment, which not only makes the connection between the box body 10 and the internal equipment more stable, but also reduces the load borne by each mounting position.

[0152] Please refer to Figures 12 and 13. Figure 12 is a bottom view of the second housing 12 provided in some embodiments of the present application. Figure 13 is a cross-sectional view taken along line BB in Figure 12. The connection portion 1222 is provided with a mounting structure 125, which is used to connect the housing 10 to an external device. The external device is located outside the housing 10.

[0153] The mounting structure 125 is a structure for mounting and fixing the housing 10 to an external device. The external device may be an electrical device, a transportation device, a storage device, or the like.

[0154] The mounting structure 125 can be a through hole, a blind hole, a threaded hole, a hook, a slide rail, a guide rail, a lock, or other structures. The mounting structure 125 can be a structure formed directly on the connecting portion 1222, and can be integrally formed with the connecting portion 1222. For example, the mounting structure 125 is a threaded hole machined into the connecting portion 1222, or the mounting structure 125 is a track extruded integrally with the connecting portion 1222. The mounting structure 125 can also be formed on other parts connected to the connecting portion 1222, for example, the mounting structure 125 is a threaded hole on a part such as a sleeve or nut, or the mounting structure 125 is a track on a guide rail.

[0155] By providing mounting structure 125 on connecting portion 1222, that is, integrating mounting structure 124 and mounting structure 125 into panel 122, it is easier to mount and secure external devices to connecting portion 1222. This reduces the number of mounting beams, further simplifying the components of housing 10. Furthermore, the reduced number of mounting beams also reduces the number of locations requiring welding, simplifying production and improving production efficiency.

[0156] In some embodiments, the mounting structure 125 includes a mounting hole.

[0157] The mounting hole can be directly provided on the connecting portion 1222. Along the thickness direction of the connecting portion 1222, the mounting hole is recessed from the surface of the connecting portion 1222 facing away from the inner side of the box body 10 to the surface facing the inner side of the box body 10. The mounting hole can be a round hole, a square hole, a hexagonal hole, etc.

[0158] The number of the mounting holes can be one or more, where "more" means two or more. In an embodiment where there are multiple mounting holes, the multiple mounting holes are arranged at intervals.

[0159] The mounting structure 125 is a mounting hole provided on the connecting portion 1222 , which is helpful in simplifying the structure of the box body 10 and reducing the weight of the box body 10 .

[0160] In some embodiments, the mounting hole is provided with an internal thread.

[0161] The mounting hole is provided with an internal thread, so the external device can cooperate with the mounting hole thread, thereby realizing the connection between the box body and the external device. The connection method is simple and convenient, and has good stability.

[0162] In other embodiments, the wall surface of the mounting hole is a smooth plane or a curved surface.

[0163] In some embodiments, the mounting hole is a blind hole.

[0164] The mounting hole is a blind hole, which means that the mounting hole will not pass through the connecting portion 1222, reducing the impact of the setting of the mounting hole on the structural strength of the connecting portion 1222. It is also unnecessary to perform sealing treatment at the mounting hole, reducing the manufacturing difficulty of the box body 10.

[0165] Please refer to Figures 14, 15, and 16. Figure 14 is a bottom view of the second housing 12 provided in other embodiments of the present application. Figure 15 is a cross-sectional view taken at position CC in Figure 14. Figure 16 is an enlarged view taken at position D in Figure 15. In other embodiments, the housing 10 includes a mounting member 126 disposed on the connecting portion 1222, and the mounting structure 125 is disposed on the mounting member 126.

[0166] The mounting part 126 and the connecting part 1222 can be fixedly connected, such as by bonding, welding, etc. The mounting part 126 and the connecting part 1222 can also be detachably connected, such as by bolts, screws, etc. The external device is connected to the connecting part 1222 through the mounting part 126. The mounting structure 125 is indirectly arranged on the connecting part 1222 through the mounting part 126. The mounting part 126 can be a structural part such as a mounting beam, an angle part, a reinforcing plate, etc. The mounting part 126 can also be a standard industrial part such as a sleeve, a nut, and a slide rail. The mounting structure 125 such as a through hole, a threaded hole, and a slot can be formed on the mounting part 126 by processing. The mounting part 126 can also be a connection structure that comes with a standard industrial part. For example, when the mounting part 126 is a nut, the mounting structure 125 is a threaded hole on the nut.

[0167] The connecting portion 1222 may include one mounting member 126 or may include multiple mounting members 126. In the embodiment where the connecting portion 1222 includes multiple mounting members 126, the multiple mounting members 126 are arranged on the connecting portion 1222 at intervals.

[0168] One mounting structure 125 or multiple mounting structures 125 may be provided on one mounting member 126 .

[0169] The mounting structure 125 is provided on the mounting part 126 , and the housing 10 can be connected to an external device through the mounting part 126 , making the connection between the housing 10 and the external device more convenient.

[0170] In some embodiments, the mounting component 126 and the connecting portion 1222 are welded.

[0171] The mounting member 126 and the connecting portion 1222 can be welded together by laser welding, ultrasonic welding, resistance welding, gas welding, or the like.

[0172] The mounting member 126 is welded to the connecting portion 1222 , which not only provides a convenient connection method, but also improves the connection strength between the mounting member 126 and the connecting portion 1222 and provides a greater load-bearing capacity.

[0173] 14 , 15 and 16 , in some embodiments, the mounting member 126 is a sleeve having an internal thread.

[0174] The mounting member 126 is a sleeve and is provided with an internal thread in the sleeve. The mounting member 126 cooperates with the thread of the external device to achieve the mounting of the box body 10 on the external device. The mounting method is simple, convenient and stable.

[0175] 14 , 15 and 16 , in some embodiments, the connection portion 1222 is provided with a plurality of mounting structures 125 , and the plurality of mounting structures 125 are arranged at intervals.

[0176] The plurality of mounting structures 125 may be arranged at intervals along a direction perpendicular to the first direction, or may be arranged in a matrix.

[0177] The box body 10 includes a plurality of mounting structures 125 arranged at intervals, and a plurality of mounting positions can be formed between the box body 10 and the external device, which not only makes the connection between the box body 10 and the external device more stable, but also reduces the load borne by each mounting position.

[0178] In some embodiments, the plate body 1221 and the connecting portion 1222 are integrally formed.

[0179] The plate body 1221 and the connecting portion 1222 are integrally formed, which means that the plate body 1221 and the connecting portion 1222 are an integral structure during manufacture. The plate body 1221 and the connecting portion 1222 can be integrally formed by die casting, or can be integrally formed by casting.

[0180] By integrally forming the plate body 1221 and the connecting portion 1222 , the integrity is improved and the strength of the panel 122 is higher.

[0181] In some embodiments, the housing 10 includes a side panel 127 , which is disposed opposite to the panel 122 . The side panel 127 is connected to the other end of the end panel 121 .

[0182] The panel 122 and the side panels 127 are respectively connected to the two ends of the end panel 121. Along the first direction, the panel 122 and the side panels 127 are arranged opposite to each other. The panel 122, the end panel 121 and the side panels 127 are connected to form a U-shaped structure.

[0183] A panel 122 and a side panel 127 opposite to the panel 122 are provided on the end wall. On the one hand, the structural strength of the box body 10 can be improved. On the other hand, the accommodating space for internal equipment can be limited so that the internal equipment can be stably assembled in the box body 10. On the other hand, the panel 122 and the side panel 127 protrude from the surface of the end panel 121. When the internal equipment is bonded to the end panel 121 by glue, the glue overflow space can be effectively controlled, thereby reducing the risk of waste and environmental pollution caused by glue overflow.

[0184] In some embodiments, the housing 10 includes a first housing 11 and a second housing 12, which are separately disposed and connected. The second housing 12 includes an end plate 121, a panel 122, and a side plate 127, which together define a storage space.

[0185] “The first box body 11 and the second box body 12 are separately provided and connected” means that during manufacturing, the first box body 11 and the second box body 12 are provided separately, and the first box body 11 and the second box body 12 are subsequently connected together. For example, the first box body 11 can be bolted to the second box body 12.

[0186] The end plate 121, the panel 122 and the side plate 127 are all part of the second box body 12. The second box body 12 may also include other walls. In this embodiment, the second box body 12 is connected to the first box body 11 to form a storage space of the box body 10.

[0187] By providing the first box body 11 and the second box body 12 , it is convenient to manufacture and assemble them separately to form the box body 10 . The end plate 121 , the panel 122 and the side plate 127 are all located in the second box body 12 .

[0188] Optionally, a seal 13 is provided between the first box body 11 and the second box body 12 , and the seal 13 is used to seal the first box body 11 and the second box body 12 to reduce the risk of external water vapor entering the box body 10 .

[0189] The embodiment of the present application further provides a battery 100 , which includes a battery cell and the aforementioned box body 10 , wherein the battery cell is accommodated in the box body 10 .

[0190] An embodiment of the present application further provides an electric device, which includes the above-mentioned battery 100, and the battery 100 is used to provide electric energy to the electric device.

[0191] According to some embodiments of the present application, please refer to Figures 2 to 16.

[0192] The present embodiment provides a housing 10, comprising an end plate 121, a panel 122, and a medium flow channel. The panel 122 is connected to one end of the end plate 121. The medium flow channel is used to accommodate a heat exchange medium and is at least partially located on the end plate 121. The medium flow channel has a medium inlet 1234 and a medium outlet 1235. The medium inlet 1234 and / or the medium outlet 1235 are provided on the panel 122.

[0193] The housing 10 is provided with a medium flow channel for passing a heat exchange medium to thermally manage the equipment within the housing 10. The medium flow channel is at least partially located on the end plate 121. The medium inlet 1234 and / or medium outlet 1235 of the medium flow channel are provided on the panel 122. The heat exchange medium can directly enter and / or exit the medium flow channel through the medium inlet 1234 and / or medium outlet 1235 on the panel 122. This reduces or eliminates the need for pipelines connecting the end plate 121 and the panel 122, thereby reducing the internal space occupied by the pipelines in the housing 10 and facilitating an increase in the energy density of the battery 100.

[0194] The medium flow channel includes a first flow channel 1232 and a second flow channel 1231. The first flow channel 1232 is provided on the end plate 121, and the second flow channel 1231 is provided on the panel 122. The second flow channel 1231 communicates with the first flow channel 1232, and the second flow channel 1231 is formed with a medium inlet 1234 or a medium outlet 1235 on the panel 122. The first flow channel 1232 is provided on the end plate 121, and the second flow channel 1231 is provided on the panel 122. The first flow channel 1232 and the second flow channel 1231 communicate with each other. In this way, heat exchange medium can be supplied to the first flow channel 1232 on the end plate 121 through the second flow channel 1231 on the panel 122, or the heat exchange medium in the first flow channel 1232 can be discharged through the second flow channel 1231. This reduces or eliminates the need for pipelines connecting the end plate 121 and the panel 122, thereby reducing the internal space occupied by pipelines in the housing 10, which helps to improve the energy density of the battery 100.

[0195] The medium flow channel includes two second flow channels 1231, and a first flow channel 1232 connects the two second flow channels 1231. One second flow channel 1231 has a medium inlet 1234 formed on the panel 122, and the other second flow channel 1231 has a medium outlet 1235 formed on the panel 122. The end plate 121 is provided with a first flow channel 1232, and the panel 122 is provided with two independent second flow channels 1231. The first flow channel 1232 connects the two second flow channels 1231. In this way, heat exchange medium can be supplied to the first flow channel 1232 on the end plate 121 through one second flow channel 1231 on the panel 122, and the heat exchange medium in the first flow channel 1232 can be discharged through the other second flow channel 1231. This can further reduce or eliminate the need for pipelines connecting the end plate 121 and the panel 122, thereby reducing the internal space occupied by the pipelines in the housing 10, which is beneficial for improving the energy density of the battery 100.

[0196] Along a first direction, the panel 122 is connected to one end of the end plate 121. The panel 122 includes a plate body 1221 and a connecting portion 1222. The connecting portion 1222 protrudes from the plate body 1221 along the first direction. The connecting portion 1222 connects the end plate 121 and the plate body 1221, and the medium flow channel is formed in the connecting portion 1222. By having the connecting portion 1222 protrude from the plate body 1221 along the first direction, it is convenient to connect the panel 122 to the end plate 121 via the connecting portion 1222, for example, to facilitate welding the connecting portion 1222 to the end plate 121. The plate body 1221 is a wall that encloses the storage space of the housing 10. The medium flow channel is formed in the connecting portion 1222. After the connecting portion 1222 is connected to the end plate 121, the medium flow channel is located outside the storage space, and the heat exchange medium in the medium flow channel is unlikely to damage the equipment in the storage space.

[0197] Connecting portion 1222 is provided with a mounting structure 124 for mounting internal equipment housed within housing 10. Providing mounting structure 124 on connecting portion 1222, i.e., integrating mounting structure 124 with panel 122, facilitates mounting and securing internal equipment to connecting portion 1222. This reduces the number of equipment mounting beams, further simplifying the components of housing 10. Furthermore, the reduced number of equipment mounting beams also reduces the number of locations requiring welding, simplifying production and improving efficiency.

[0198] Connecting portion 1222 is provided with a mounting structure 125, which is used to connect the housing 10 to an external device located outside the housing 10. By providing mounting structure 125 on connecting portion 1222, i.e., integrating both mounting structure 124 and mounting structure 125 into panel 122, it is easier to mount and secure the external device to connecting portion 1222. This reduces the number of mounting beams, further simplifying the components of housing 10. Furthermore, the reduced number of mounting beams also reduces the number of locations requiring welding, which helps simplify production and improve production efficiency.

[0199] The plate body 1221 and the connecting portion 1222 are integrally formed. By integrally forming the plate body 1221 and the connecting portion 1222, the integrity is improved and the strength of the panel 122 is higher.

[0200] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A box, wherein: include: End plate; A panel connected to one end of the end plate; The medium flow channel is used to accommodate the heat exchange medium. The medium flow channel is at least partially located on the end plate. The medium flow channel has a medium inlet and a medium outlet. The medium inlet and / or the medium outlet are arranged on the panel.

2. The box according to claim 1, wherein: The medium flow channel includes a first flow channel and a second flow channel, the first flow channel is arranged on the end plate, the second flow channel is arranged on the panel, the second flow channel is communicated with the first flow channel, and the second flow channel is formed with the medium inlet or the medium outlet on the panel.

3. The box according to claim 2, wherein: The end plate includes a first surface, the first flow channel forms a first opening on the first surface, the panel includes a second surface, the second flow channel forms a second opening on the second surface, the first surface and the second surface are in contact with each other, and the first opening is at least partially opposite to the second opening so that the first flow channel is connected to the second flow channel.

4. The box according to claim 2 or 3, wherein: The second flow channel forms the medium inlet or the medium outlet on the surface of the panel facing away from the end plate.

5. The box according to any one of claims 2 to 4, wherein: Along a first direction, the panel is connected to one end of the end plate, and the second flow channel penetrates two oppositely disposed surfaces of the panel along the first direction.

6. The box according to any one of claims 2 to 5, wherein: The second flow channel includes a first section and a second section, the first section is connected to the second section, an end of the first section facing away from the second section forms the medium inlet or the medium outlet, the second section is connected to the first flow channel, the cross-section of the first section is circular, and the cross-sections of the second section and the first flow channel are both square.

7. The box according to any one of claims 2 to 6, wherein: The medium flow channel includes two second flow channels, the first flow channel is connected to the two second flow channels, one of the second flow channels is formed with the medium inlet on the panel, and the other of the second flow channels is formed with the medium outlet on the panel.

8. The box according to any one of claims 1 to 7, wherein: Along the first direction, the panel is connected to one end of the end plate, the panel includes a plate body and a connecting portion, the connecting portion protrudes from the plate body along the first direction, the connecting portion connects the end plate and the plate body, and the medium flow channel is partially formed in the connecting portion.

9. The box according to claim 8, wherein: The connection portion is provided with a mounting structure, and the mounting structure is used to mount internal equipment, and the internal equipment is accommodated in the box.

10. The box according to claim 9, wherein: The mounting structure comprises a mounting hole, and the mounting hole is provided with an internal thread.

11. The box according to claim 10, wherein: The mounting hole is a blind hole.

12. The box according to any one of claims 9 to 11, wherein: The connection portion is provided with a plurality of the mounting structures, and the plurality of the mounting structures are arranged at intervals.

13. The box according to any one of claims 8 to 12, wherein: The connecting portion is provided with a mounting structure, and the mounting structure is used to connect the box body with an external device, and the external device is located outside the box body.

14. The housing according to claim 13, wherein: The mounting structure comprises a mounting hole, and the mounting hole is provided with an internal thread.

15. The housing according to claim 14, wherein: The mounting hole is a blind hole.

16. The box according to any one of claims 13 to 15, wherein: The box body includes a mounting member arranged on the connecting portion, and the mounting structure is arranged on the mounting member.

17. The housing according to claim 16, wherein: The mounting component is welded to the connecting portion.

18. The housing according to claim 16 or 17, wherein: The mounting component is a sleeve having an internal thread.

19. The box according to any one of claims 13 to 18, wherein: The connecting portion is provided with a plurality of the mounting structures, and the plurality of the mounting structures are arranged at intervals.

20. The box according to any one of claims 8 to 19, wherein: The plate body and the connecting portion are integrally formed.

21. The box according to any one of claims 1 to 20, wherein: The box body comprises a side plate, the side plate is arranged opposite to the panel, and the side plate is connected to the other end of the end plate.

22. The housing according to claim 21, wherein: The box body comprises a first box body and a second box body, and the first box body and the second box body are separately arranged and connected; The second box body includes the end plate, the panel and the side plate, and the first box body, the end plate, the panel and the side plate jointly define a containing space.

23. A battery, wherein: include: Battery cells; According to the box body according to any one of claims 1 to 22, the battery cell is accommodated in the box body.

24. An electrical device, wherein: The battery according to claim 23 is used to provide electrical energy to the electrical device.

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