Battery box, battery device and power utilization device

Abstract

The invention relates to a battery box, a battery device and a power utilization device. The battery box comprises a box body, single batteries and mucilage glue, the box body comprises a bottom wall, a glue containing groove is formed in the bottom wall, and the single batteries are installed on the bottom wall. Wherein the glue containing groove is provided with a glue injection port communicated with the outside, and the glue containing groove is formed in at least part of the area, where the battery monomers are mounted, of the bottom wall. And the glue containing groove is filled with the glue from the glue injection port, and the battery monomers and the bottom wall are bonded. According to the battery box, each battery monomer can be opposite to the glue containing groove in the bottom wall, so that the glue in the glue containing groove can be used for bonding and fixing all the battery monomers. According to the battery box, the glue containing groove is provided with the glue injection opening communicated with the outside, when the battery box is assembled, the single battery can be firstly placed on the bottom wall, and then the glue is injected into the glue containing groove through the external glue injection opening, so that the problems of inconvenience in placement of the single battery, glue overflow and the like caused by the fact that the single battery is placed on the glue which is coated in advance are greatly solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, in particular to a battery box, a battery device and a power consumption device. BACKGROUND

[0002] When assembling the battery box, a large amount of structural adhesive is generally applied on the bottom plate of the box body, and then the battery monomer is placed in the box body, and the structural adhesive is used to bond and fix the battery monomer. When placing the battery monomer, the battery monomer needs to be lifted and placed vertically on the bottom plate of the box body, which is relatively inconvenient to operate. After placing the battery monomer, the problem of glue overflow often occurs, which needs to be cleaned later, increasing the complexity of the process. SUMMARY

[0003] In view of the above problems, the present application provides a battery box, a battery device and a power consumption device, which can solve the problems of inconvenient operation and easy glue overflow during assembly of the battery monomer.

[0004] In a first aspect, the present application provides a battery box, which comprises:

[0005] a box body comprising a bottom wall, wherein a glue containing groove is formed on the bottom wall;

[0006] a battery monomer installed on the bottom wall;

[0007] wherein the glue containing groove has an injection port in communication with the outside, and the glue containing groove is arranged in at least part of the region of the bottom wall where the battery monomer is installed;

[0008] an adhesive filled in the glue containing groove from the injection port and bonded to the battery monomer and the bottom wall.

[0009] The battery box provided by the embodiment of the present application supports and installs the battery monomer through the bottom wall of the box body. By forming the glue containing groove on the bottom wall and arranging the glue containing groove in at least part of the region of the bottom wall where the battery monomer is installed, each battery monomer can be opposite to the glue containing groove, so that the adhesive in the glue containing groove can bond and fix all the battery monomers. By arranging the glue containing groove to have an injection port in communication with the outside, the battery monomer can be placed on the bottom wall during assembly of the battery box, and then the adhesive can be injected into the glue containing groove through the external injection port. After the adhesive solidifies, the battery monomer is firmly bonded to the bottom wall, which greatly alleviates the problems of inconvenient placement of the battery monomer and glue overflow caused by placing the battery monomer on the adhesive applied in advance.

[0010] In other embodiments, the battery monomers are arranged along a first direction, and the glue containing groove is arranged in a region on the bottom wall corresponding to at least one end of the battery monomers along a second direction; the second direction is perpendicular to the first direction.

[0011] The battery box provided by the embodiments of the present application is configured as above, so that the adhesive in the adhesive groove is used to bond one end or both ends of the battery monomer, thereby improving the bonding firmness of the battery monomer.

[0012] In some other embodiments, one side of the battery monomer is provided with a glue overflow gap in communication with the adhesive groove, and the glue overflow gap forms a glue injection opening on the surface of the battery monomer away from the bottom wall.

[0013] The battery box provided by the embodiments of the present application is configured as above, so that the glue injection operation is relatively convenient. During the glue injection, the glue injection amount can be conveniently observed and controlled, so as to control the liquid level of the glue injection below the surface of the battery monomer, thereby effectively alleviating the problem of adhesive overflow from the glue overflow gap.

[0014] In some other embodiments, the battery monomers are arranged in a first direction to form a battery monomer group; the battery monomer group is provided with at least two groups, and adjacent two groups of battery monomer groups are arranged in a second direction to form a glue overflow gap; wherein the second direction is perpendicular to the first direction.

[0015] The battery box provided by the embodiments of the present application is configured as above, so that the installation gap between the battery monomer groups is reasonably utilized, and the glue overflow gap does not need to be additionally processed, which is beneficial to save the processing procedure, improve the processing efficiency, and reduce the processing cost.

[0016] In some other embodiments, the adhesive groove is arranged at one end of the battery monomer located on both sides of the glue overflow gap in the second direction; and the glue overflow gap is in communication with the adhesive grooves at both ends on both sides of the glue overflow gap.

[0017] The battery box provided by the embodiments of the present application is configured as above, so that the adhesive can be injected into the corresponding adhesive grooves of the two adjacent battery monomers in the second direction through the glue overflow gap, thereby uniformly bonding the two battery monomer groups installed on the adhesive grooves.

[0018] In some other embodiments, the bottom wall is further provided with a water cooling member, and the water cooling member is arranged in a staggered manner with the adhesive groove and used to cool the battery monomer.

[0019] The battery box provided by the embodiments of the present application is configured as above, so that the water cooling member is used to cool and cool the battery monomer, and the water cooling member is arranged in a staggered manner with the adhesive groove, thereby simultaneously considering the cooling and fixing of the battery monomer.

[0020] In some other embodiments, a heat-conducting pad is arranged between the water cooling member and the battery monomer.

[0021] The battery box provided by the embodiments of the present application is configured as above, so that the heat-conducting pad is used to transmit the heat generated by the battery monomer to the water cooling member, thereby achieving rapid heat dissipation of the battery monomer.

[0022] In some other embodiments, the battery box further comprises:

[0023] The pressing strip is arranged on the side of the battery monomer away from the bottom wall, and is used for applying pressure to the battery monomer towards the bottom wall.

[0024] The battery box provided by the embodiments of the present application fixes the battery monomer by arranging the pressing strip to press the battery monomer against the bottom wall.

[0025] In some other embodiments, the projection of the pressing strip on the bottom wall covers the glue accommodating groove.

[0026] The battery box provided by the embodiments of the present application can make the force of the pressing strip on the battery monomer and the force of the adhesive on the battery monomer act in the same direction, which is beneficial to improving the synergy of the two to improve the fixing effect on the battery monomer.

[0027] In some other embodiments, the battery box further comprises:

[0028] The cover body is arranged on the opening of the box body away from the bottom wall.

[0029] The battery box provided by the embodiments of the present application covers the opening of the box body by arranging the cover body, so as to improve the protection effect on the battery monomer.

[0030] In some other embodiments, the pressing strip is connected to the cover body and forms a box cover with the cover body.

[0031] The battery box provided by the embodiments of the present application integrates the pressing strip on the cover body, which is more convenient for storage and assembly.

[0032] In some other embodiments, the box body further comprises:

[0033] The second wall is arranged around the bottom wall and cooperates with the bottom wall to form a containing space for accommodating the battery monomer; at least one second wall in the arrangement direction of the battery monomer is detachably arranged, and when the battery monomer is installed to the bottom wall, one second wall is removed to form an opening, so that the battery monomer can be placed on the bottom wall from the opening.

[0034] The battery box provided by the embodiments of the present application cooperates with the bottom wall to form a containing space for accommodating the battery monomer by arranging the second wall, so as to improve the protection of the battery monomer. By detachably arranging the second wall in the arrangement direction of the battery monomer and removing it to form an opening, the battery monomer can be placed on the bottom wall in the state that the bottom side of the battery monomer is flush with the bottom wall, without the need to make the battery monomer pass over the second wall, which improves the speed of assembling the battery monomer. Moreover, since the bottom wall has not been coated with adhesive when the battery monomer is assembled, the battery monomer can be pushed along the bottom wall, which greatly improves the operation convenience.

[0035] In some other embodiments, the second detachable wall is fixedly connected to the bottom wall after all the battery cells are installed.

[0036] The battery box provided by the embodiments of the present application provides the second wall to block and protect the battery cells, thereby improving the protection effect of the box body on the battery cells.

[0037] In some other embodiments, the second detachable wall is welded or bonded to the bottom wall.

[0038] The battery box provided by the embodiments of the present application firmly connects the second wall to the bottom wall.

[0039] In the second aspect, the present application provides a battery device comprising the battery box in the above embodiments.

[0040] In the third aspect, the present application provides a power consumption device comprising the battery device in the above embodiments, and the battery device is used to provide electric energy.

[0041] The above description is only a summary of the technical solutions of the present application. In order to make the technical means of the present application more clear and understandable, the specific embodiments of the present application can be implemented according to the content of the description, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0042] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are included to provide a description of the preferred embodiments and are not meant to limit the present application. Moreover, the same reference numerals in all the drawings represent the same elements. In the drawings:

[0043] Figure 1 Structure schematic diagram of a vehicle of some embodiments of the present application;

[0044] Figure 2 Structure schematic diagram of a battery box of some embodiments of the present application when the box cover is removed;

[0045] Figure 3 Internal structure schematic diagram of a battery box of some embodiments of the present application;

[0046] Figure 4 Sectional structure schematic diagram of a battery box of some embodiments of the present application along the X direction;

[0047] Figure 5 Structure schematic diagram of a box body of some embodiments of the present application;

[0048] Figure 6 Structure schematic diagram of a battery box of some embodiments of the present application.

[0049] The reference signs in the detailed description of the embodiments are listed below:

[0050] 1000, vehicle; 100, battery device; 200, controller; 300, motor;

[0051] 10, box body; 11, bottom wall; 111, glue containing groove; 1111, partition protrusion; 112, water cooling piece; 113, heat conduction pad; 12, second wall; 13, notch;

[0052] 20, battery monomer; 2, battery monomer group; 21, glue gap;

[0053] 30, adhesive glue;

[0054] 40, box cover; 41, cover body; 42, pressing strip; 43, protective layer. DETAILED DESCRIPTION

[0055] The embodiments of the technical scheme of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0056] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0057] 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 "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0058] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0059] In the description of the embodiments of the present application, the term "and / or" is merely an association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after it.

[0060] In the description of the embodiments of the present application, the term "a plurality of" refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces).

[0061] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and 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 devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0062] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0063] At present, from the development of market situation, the application of battery is more and more extensive. The battery is not only applied to energy storage power supply systems such as hydroelectric, thermal, wind and solar power stations, but also widely used in electric bicycles, electric motorcycles, electric vehicles and other electric vehicles and other fields. With the continuous expansion of the application field of battery, the demand of its market is also increasing.

[0064] The battery box is an energy storage structure in which a plurality of series and parallel connected battery monomers are installed in the box body and fixed in the box body. When assembling the battery box, a large amount of structural adhesive is first applied on the bottom plate of the box body, and then the battery monomers are placed in the box body, and the structural adhesive is used to bond and fix the battery monomers.

[0065] The inventors of this application noted that after applying structural adhesive to the base plate, the battery cells cannot be pushed on the base plate; otherwise, the structural adhesive will be pushed up, resulting in uneven application and even excessive overflow from between the battery cells. Therefore, when installing the battery cells into the casing, the battery cells need to be raised and placed vertically on the casing base plate, and they need to be placed in the correct position in one go. This operation is inconvenient and requires high precision. Furthermore, overflow of adhesive often occurs after the battery cells are placed, requiring subsequent cleaning and increasing the complexity of the process.

[0066] Based on the above considerations, and to address the inconvenience of assembling individual battery cells into the battery box, the inventors, after in-depth research, designed a battery box comprising a box body and individual battery cells, with the battery cells mounted on the bottom wall of the box body. An adhesive-containing groove is created in the bottom wall to hold the adhesive used to bond the battery cells. Furthermore, the adhesive-containing groove has an external injection port and is located in at least a portion of the area on the bottom wall where the battery cells are mounted. During battery box assembly, the battery cells are first placed inside the box body, and then adhesive is injected into the adhesive-containing groove through the external injection port. After the adhesive solidifies, the battery cells are firmly bonded to the bottom wall, greatly alleviating the problems of inconvenient battery cell placement and adhesive overflow caused by placing the battery cells on pre-applied adhesive.

[0067] This application also provides a battery device, including the battery box described above.

[0068] This application also provides an electrical device that provides electrical energy through the aforementioned battery device. The electrical device can be, but is not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc. Electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0069] In some embodiments, the electrical device can be a vehicle. The vehicle can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle; a new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle, or a range-extended electric vehicle, etc. A battery device is installed inside the vehicle, and the battery device can be located at the bottom, front, or rear of the vehicle. The battery device can be used to power the vehicle; for example, the battery device can serve as the vehicle's operating power source. The vehicle may also include a controller and a motor, and the controller can be used to control the battery device to power the motor. For example, the battery device can be used to meet the vehicle's power needs during starting, navigation, and driving.

[0070] For ease of explanation, the following embodiments will be described using a vehicle 1000 as an example of an electrical device according to an embodiment of this application.

[0071] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle 1000 provided in some embodiments of this application. Taking the vehicle 1000 as an example, the vehicle 1000 can be a gasoline vehicle, a natural gas vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A battery device 100 is installed inside the vehicle 1000, and the battery device 100 can be located at the bottom, front, or rear of the vehicle 1000. The battery device 100 can be used to power the vehicle 1000; for example, the battery device 100 can serve as the 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 device 100 to supply power to the motor 300, for example, to meet the power needs of the vehicle 1000 during starting, navigation, and driving.

[0072] In some embodiments, the battery device 100 can not only serve as the operating power source for the vehicle 1000, but also as the driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0073] Please see Figure 2 and Figure 3 , Figure 2 This is a schematic diagram of the structure of the battery box when the cover 40 is removed, as provided in some embodiments of this application; Figure 3 This is a schematic diagram of the internal structure of the battery box according to some embodiments of this application.

[0074] This application provides a battery box, which includes a box body 10, battery cells 20, and adhesive 30. The box body 10 includes a bottom wall 11, on which an adhesive-containing groove 111 is formed. The battery cells 20 are mounted on the bottom wall 11. The adhesive-containing groove 111 has an injection port communicating with the outside, and the adhesive-containing groove 111 is located in at least a portion of the area on the bottom wall 11 where the battery cells 20 are mounted. The adhesive 30 is filled into the adhesive-containing groove 111 through the injection port and bonds the battery cells 20 to the bottom wall 11.

[0075] The battery box provided in this application embodiment supports and installs battery cells 20 via the bottom wall 11 of the box body 10. By creating an adhesive groove 111 on the bottom wall 11 and positioning the groove 111 within at least a portion of the area where the battery cells 20 are installed, each battery cell 20 can be positioned opposite the groove 111, thus achieving adhesive bonding and fixing of all battery cells 20 by the adhesive 30 within the groove 111. By configuring the adhesive groove 111 with an external injection port, during battery box assembly, the battery cells 20 can be placed on the bottom wall 11 first, and then adhesive can be injected into the groove 111 through the external injection port. After the adhesive 30 solidifies, the battery cells 20 are firmly bonded to the bottom wall 11, greatly alleviating problems such as inconvenience in placing the battery cells 20 and adhesive overflow caused by placing them on pre-applied adhesive.

[0076] In this embodiment of the application, when the battery box is assembled in the electrical device, the bottom wall 11 can serve as the bottom plate of the box body 10, with the bottom wall 11 facing downwards and the battery cell 20 located on the upper side of the bottom wall 11.

[0077] In some other embodiments, when the battery box is assembled in the electrical device, the bottom wall 11 can also serve as the top plate of the box 10, with the bottom wall 11 facing upwards and the battery cell 20 located on the lower side of the bottom wall 11.

[0078] It is understood that after the housing 10 and the battery cell 20 are assembled into a finished battery box, the installation method of the battery box in the battery device or electrical device is not limited by the orientation of the bottom wall 11. The battery box provided in any embodiment of this application can be applied to the battery device or electrical device in any way.

[0079] See Figure 4 , Figure 4 This is a cross-sectional structural diagram of the battery box along the X direction according to some embodiments of this application. In some embodiments, after the battery cell 20 is placed on the bottom wall 11, adhesive 30 is poured into the adhesive reservoir 111 through the adhesive injection port located outside the battery cell 20. After the adhesive 30 solidifies, it firmly adheres the battery cell 20 to the bottom wall 11.

[0080] In some other embodiments, when other fixing structures are used to fix the battery cell 20 to the bottom wall 11, the adhesive 30 can be omitted. In this case, the housing 10 with the adhesive reservoir 111 proposed in this application embodiment can still be used, and the adhesive reservoir 111 is kept empty. Since the adhesive reservoir 111 is connected to the outside through the glue injection port, it can also form a heat dissipation channel, which can dissipate heat from the battery cell 20.

[0081] Reference Figure 2 and Figure 3In some embodiments, the battery cells 20 are arranged along a first direction, and the adhesive groove 111 is disposed on the bottom wall 11 in a region corresponding to at least one end of the battery cell 20 along a second direction; the second direction is perpendicular to the first direction. Specifically, the first direction is the Y direction as shown in the figure, and the second direction is the X direction as shown in the figure. With the above arrangement, the adhesive 30 in the adhesive groove 111 bonds one or both ends of the battery cell 20, thereby improving the bonding strength of the battery cell 20.

[0082] Optionally, adjacent battery cells 20 are bonded together along the Y direction to improve the utilization of installation space and enhance the stability of the installation by abutting against each other.

[0083] In some embodiments, a glue-passing gap 21 communicating with the glue-filling tank 111 is provided on one side of the battery cell 20, and the glue-passing gap 21 forms a glue-filling port on the surface of the battery cell 20 opposite to the bottom wall 11. With this arrangement, glue can be filled from the side of the battery cell 20 opposite to the bottom wall 11, making the glue-filling operation more convenient. During glue filling, it is convenient to observe and control the amount of glue filled, so as to keep the glue level below the surface of the battery cell 20, which can effectively alleviate the problem of glue 30 overflowing from the glue-passing gap 21.

[0084] In other embodiments, the glue injection port can be set at other positions in the housing 10, and a glue-filling channel connecting the glue injection port and the glue-filling tank 111 can be provided, which can also fill the glue 30 into the glue-filling tank 111.

[0085] In some embodiments, the adhesive groove 111 is configured as a straight groove extending along the Y direction, with both ends extending along the Y direction to the edge of the bottom wall 11, so as to provide an adhesive effect on all battery cells 20 arranged along the Y direction.

[0086] In some embodiments, multiple adhesive grooves 111 are provided along the X direction, and the multiple adhesive grooves 111 cover most of the area of ​​the bottom wall 11 to increase the installation space of the battery cells 20 inside the housing 10.

[0087] In some embodiments, the battery cells 20 are arranged along the Y direction to form a battery cell group 2. At least two groups of battery cell groups 2 are provided, and these at least two groups of battery cell groups 2 are spaced apart along the X direction to form an adhesive gap 21. This arrangement makes efficient use of the mounting gaps between the battery cell groups 2, eliminating the need for additional processing of the adhesive gap 21, thus saving processing steps, improving processing efficiency, and reducing processing costs.

[0088] In some embodiments, the adhesive reservoir 111 is disposed at one end of the battery cell 20 located on both sides of the adhesive passage gap 21 along the X direction; the adhesive passage gap 21 is connected to the adhesive reservoir 111 on both sides of the adhesive passage gap 21. With this arrangement, adhesive 30 can be poured into the adhesive reservoir 111 corresponding to two adjacent battery cells 20 along the X direction through the adhesive passage gap 21, so as to uniformly bond the two battery cell groups 2 installed on the adhesive reservoir 111.

[0089] In some embodiments, a water-cooling component 112 is also provided on the bottom wall 11. The water-cooling component 112 is offset from the adhesive tank 111 and is used to cool the battery cell 20. By providing the water-cooling component 112 to cool the battery cell 20, and by offsetting the water-cooling component 112 from the adhesive tank 111, both cooling and fixing of the battery cell 20 are achieved.

[0090] Optionally, the water-cooling component 112 is located at the midpoint of the bottom wall 11 relative to the battery cell 20 along the X direction, and adhesive-containing grooves 111 are respectively provided on both sides of the water-cooling component 112 along the X direction. The water-cooling component 112 is configured as an S-shaped water-cooling plate with multiple bends, which is wound between multiple adhesive-containing grooves 111 to provide cooling for all battery cells 20.

[0091] In some embodiments, a thermal pad 113 is sandwiched between the water-cooling component 112 and the battery cell 20. By providing the thermal pad 113, the heat generated by the battery cell 20 is transferred to the water-cooling component 112, thereby achieving rapid heat dissipation from the battery cell 20.

[0092] Please see Figure 5 , Figure 5 This is a schematic diagram of the structure of the housing 10 according to some embodiments of this application. In some embodiments, the housing 10 further includes a second wall 12, which surrounds the bottom wall 11 and together with the bottom wall 11, encloses an accommodating space for accommodating the battery cell 20. At least one second wall 12 along the arrangement direction of the battery cell 20 is detachably provided. When the battery cell 20 is installed on the bottom wall 11, one second wall 12 is removed to form a notch 13, so that the battery cell 20 can be placed on the bottom wall 11 through the notch 13. By providing the second wall 12, which cooperates with the bottom wall 11 to enclose an accommodating space for accommodating the battery cell 20, the protection of the battery cell 20 is improved. By making the second wall 12 along the arrangement direction of the battery cell 20 detachable and removing it to form the notch 13, the battery cell 20 can be lifted to a state where its bottom side is flush with the bottom wall 11, and then placed on the bottom wall 11 through the notch 13, without having the battery cell 20 pass over the second wall 12, thus improving the speed of battery cell 20 assembly. Moreover, since the bottom wall 11 of the battery cell 20 has not yet been coated with adhesive 30 during assembly, it can be pushed along the bottom wall 11, which greatly improves the ease of operation.

[0093] In some embodiments, a conveyor belt or robotic arm can be provided on one side of the notch 13 to directly transfer the battery cells 20 sequentially to the bottom wall 11, which improves the assembly cycle and is more conducive to improving assembly efficiency.

[0094] In some embodiments, after all battery cells 20 are installed, a detachable second wall 12 is fixedly connected to the bottom wall 11. This arrangement allows the second wall 12 to provide obstruction and protection for the battery cells 20, improving the protective effect of the housing 10 on the battery cells 20.

[0095] In some embodiments, the detachable second wall 12 is welded or bonded to the bottom wall 11 to securely connect the second wall 12 to the bottom wall 11. The detachable second wall 12 can also be connected to an adjacent fixed second wall 12 by welding or bonding to improve the connection stability of the detachable second wall 12.

[0096] Please see Figure 6 , Figure 6 This is a schematic diagram of the battery box structure according to some embodiments of this application.

[0097] In some embodiments, the battery box further includes a pressure strip 42, which is disposed on the side of the battery cell 20 away from the bottom wall 11, for applying pressure to the battery cell 20 toward the bottom wall 11. By providing the pressure strip 42, the battery cell 20 is pressed against the bottom wall 11 to fix the battery cell 20.

[0098] In some embodiments, one of the adhesive 30 and the pressure strip 42 can be selected to fix the battery cell 20, or both adhesive 30 and pressure strip 42 can be provided at the same time, so that the two work together to provide a more reliable fixing effect on the battery cell 20.

[0099] In some embodiments, the projection of the pressure strip 42 onto the bottom wall 11 covers the adhesive groove 111. This arrangement allows the force exerted by the pressure strip 42 on the battery cell 20 and the force exerted by the adhesive 30 on the battery cell 20 to act in the same direction, which helps to improve the synergistic effect of the two and thus improve the fixing effect on the battery cell 20.

[0100] In this embodiment, the pressure strip 42 extends along the Y direction and applies pressure to both ends of the entire battery cell pack 2 along the X direction.

[0101] In some embodiments, the two ends of the pressure strip 42 can be fixed to the outside of the second wall 12, so that the pressure strip 42 has a certain tension, thereby providing resistance to the battery cell 20.

[0102] In some embodiments, the pressure strip 42 is made of steel or aluminum alloy.

[0103] In some embodiments, the battery box further includes a cover body 41, which covers the opening on the side of the box 10 away from the bottom wall 11. By providing the cover body 41 to cover the opening of the box 10, the protection effect on the battery cells 20 is improved.

[0104] In some embodiments, the pressure strip 42 is connected to the lid body 41 and assembled with the lid body 41 to form the box lid 40. By integrating the pressure strip 42 onto the lid body 41, it is easier to store and assemble.

[0105] Optionally, the cover body 41 is provided with a mounting groove on the side opposite to the bottom wall 11, and the pressure strip 42 is disposed in the mounting groove to provide positioning for the pressure strip 42 through the mounting groove, thereby ensuring the accuracy of the installation position of the pressure strip 42 so that the pressure strip 42 can provide uniform pressure on two adjacent battery cell groups 2.

[0106] In some embodiments, the lid 40 further includes a protective layer 43, which is disposed on the side of the lid body 41 opposite to the bottom wall 11, and is used to cover and protect the flap structure on the lid body 41. The protective layer 43 is generally configured as an insulating adhesive layer.

[0107] The battery box provided in this application embodiment includes a box body 10, battery cells 20, and a box cover 40. The box body 10 includes a bottom wall 11 and a second wall 12. The second wall 12 surrounds the bottom wall 11 and together with the bottom wall 11, forms an accommodating space for accommodating the battery cells 20. The box cover 40 covers the opening of the box body 10. A glue-receiving groove 111 is formed on the bottom wall 11, and the battery cells 20 are mounted on the bottom wall 11. Adhesive-filling gaps 21 are provided between adjacent battery cells 20 along the X direction. The adhesive-filling gaps 21 connect the glue-receiving groove 111 and the surface of the battery cell 20 facing away from the bottom wall 11, and an injection port is formed on the surface of the battery cell 20 facing away from the bottom wall 11. During battery box assembly, the battery cells 20 can be placed on the bottom wall 11 first, and then adhesive 30 can be injected into the adhesive reservoir 111 through the adhesive gap 21 between the battery cells 20. This greatly alleviates the problems of inconvenient placement and adhesive overflow caused by placing the battery cells 20 on pre-coated adhesive. Furthermore, at least one second wall 12 along the Y direction is detachable and can be removed to form a notch 13. The battery cells 20 can be lifted until their bottom side is flush with the bottom wall 11, and then placed on the bottom wall 11 through the notch 13 without having to pass over the second wall 12, thus improving the speed of battery cell assembly. Moreover, since the bottom wall 11 is not yet coated with adhesive 30 during battery cell assembly, it can be pushed along the bottom wall 11, greatly improving operational convenience.

[0108] This application also provides a battery device 100, including the battery box as described in any of the above embodiments.

[0109] This application also provides an electrical device, including a battery device 100 as described in any of the above embodiments, the battery device 100 being used to provide electrical energy.

[0110] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery box, characterized in that, The battery box includes: The box body (10) includes a bottom wall (11), on which a glue-containing groove (111) is provided. A battery cell (20) is mounted on the bottom wall (11); The adhesive reservoir (111) has an adhesive inlet communicating with the outside, and the adhesive reservoir (111) is disposed in at least a portion of the area on the bottom wall (11) where the battery cell (20) is installed; and Adhesive (30) is poured into the adhesive reservoir (111) from the adhesive injection port and used to bond the battery cell (20) and the bottom wall (11).

2. The battery box according to claim 1, characterized in that, The battery cells (20) are arranged along a first direction, and the adhesive groove (111) is disposed on the bottom wall (11) in a region corresponding to at least one end of the battery cells (20) along a second direction; the second direction is perpendicular to the first direction.

3. The battery box according to claim 1, characterized in that, One side of the battery cell (20) is provided with a glue passage gap (21) that communicates with the glue tank (111). The glue passage gap (21) forms the glue injection port on the surface of the battery cell (20) away from the bottom wall (11).

4. The battery box according to claim 3, characterized in that, The battery cells (20) are arranged along a first direction to form a battery cell group (2); the battery cell group (2) is provided in at least two groups, and the adjacent two groups of battery cell groups (2) are spaced apart along a second direction to form the glue gap (21); wherein, the second direction is perpendicular to the first direction.

5. The battery box according to claim 4, characterized in that, The adhesive-containing groove (111) is disposed at one end of the battery cell (20) located on both sides of the adhesive-filling gap (21) along the second direction; the adhesive-filling gap (21) is connected to the adhesive-containing groove (111) on both sides of the adhesive-filling gap (21).

6. The battery box according to claim 1, characterized in that, A water-cooling component (112) is also provided on the bottom wall (11). The water-cooling component (112) is offset from the adhesive tank (111) and is used to cool the battery cell (20).

7. The battery box according to claim 6, characterized in that, A thermal pad (113) is sandwiched between the water-cooled component (112) and the battery cell (20).

8. The battery box according to any one of claims 1 to 7, characterized in that, The battery box also includes: A pressure strip (42) is disposed on the side of the battery cell (20) away from the bottom wall (11) to apply pressure to the battery cell (20) toward the bottom wall (11).

9. The battery box according to claim 8, characterized in that, The projection of the pressure strip (42) on the bottom wall (11) covers the adhesive groove (111).

10. The battery box according to claim 8, characterized in that, The battery box also includes: Cover body (41), covering the opening on the side of the box body (10) away from the bottom wall (11).

11. The battery box according to claim 10, characterized in that, The pressure strip (42) is connected to the cover body (41) and is assembled with the cover body (41) to form a box cover (40).

12. The battery box according to any one of claims 1 to 7, characterized in that, The housing (10) also includes: The second wall (12) is provided on the bottom wall (11) and together with the bottom wall (11) forms an accommodating space for the battery cell (20); at least one of the second walls (12) along the arrangement direction of the battery cell (20) is detachably provided. When the battery cell (20) is installed on the bottom wall (11), one of the second walls (12) is removed to form a notch (13) so that the battery cell (20) can be placed on the bottom wall (11) through the notch (13).

13. The battery box according to claim 12, characterized in that, The detachable second wall (12) is welded or bonded to the bottom wall (11).

14. A battery device, characterized in that, Includes the battery box as described in any one of claims 1 to 13.

15. An electrical appliance, characterized in that, Includes the battery device as described in claim 14, the battery device being used to provide electrical energy.

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