Battery box, battery with same and electric equipment

Abstract

The utility model discloses a battery box, a battery with the same and electric equipment, the battery box comprises a box body, a deformable sealing element and a controller, the box body comprises a box body and a box cover, and the box cover is used for sealing an opening of the box body; the sealing piece is arranged between the box body and the box cover and used for sealing an assembly gap between the box body and the box cover, a containing channel extending in the length direction of the sealing piece is formed in the sealing piece, and the containing channel is used for containing gas or liquid media; the controller is used for controlling the filling amount of the medium in the containing channel and adjusting the pressure value in the containing channel so as to adjust the volume expansion rate of the sealing piece. According to the battery box disclosed by the embodiment of the utility model, the sealing element with the adjustable volume expansion rate is arranged between the box body and the box cover, so that the pressure in the accommodating channel can be adjusted according to actual conditions, the sealing capability of the sealing element is adjusted, the assembly gap between the box body and the box cover is reliably sealed, and the battery box is high in flexibility and high in reliability. The sealing effect is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic batteries, in particular to a battery box and a battery and electrical equipment having the same. Background Art

[0002] With the continuous advancement of batteries, batteries are gradually applied to various fields in life, and the sealing performance of batteries has a great influence on batteries. In the relevant technology, as shown in Patent No. CN201910926156.5 (Name: Battery Pack Shell, Battery Pack and Vehicle), the main sealing structure consists of a tray, a sealing cover, and a glue groove. The tray is first fixed on a special workbench, and then a gluing device is used on the tray to evenly apply sealant along the glue groove. The sealing cover is further placed on the pallet, and the lower surface of the sealing edge of the sealing cover is aligned and pressed with the sealing surface plane of the sealing seat of the pallet to make the sealing edge and the sealing surface fit tightly. The sealant will fill the glue groove, or a small amount will overflow. Most of the sealant is stored in the glue groove, and a complete sealing structure is formed between the sealing cover and the pallet. Since glue is prone to aging and debonding, the glue groove needs to be processed in advance. At the same time, the curing of the glue takes a relatively long time. Gluing requires high-precision automated equipment, and the equipment investment is high. After the glue is cured, the battery pack may debond due to external force vibration during use. At the same time, for thermal runaway protection inside the battery pack, additional design structures are needed to take fire extinguishing, cooling and other protective measures. These structures not only take up space and reduce the grouping rate of the battery pack, but also require more design costs and assembly labor costs.

[0003] As shown in patent number CN202220563766.0, the main sealing structure consists of a tray, a sealing cover, a sealing foam, and a pressure strip. The sealing cover is pressed by the pressure strip to compress the sealing foam. The sealing foam has high requirements on the flatness of the sealing surface of the tray. At the same time, the sealing foam will produce stress attenuation, resulting in the risk of sealing failure in the later stage of use of the sealing foam. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a battery box, wherein the volume expansion rate of the sealing member of the battery box is adjustable, the sealing effect is good, and the flexibility is strong.

[0005] According to an embodiment of the utility model, the battery box includes: a box body, the box body includes a box body and a box cover, the box cover is used to close the opening of the box body; a deformable seal, the seal is arranged between the box body and the box cover, and is used to seal the assembly gap between the box body and the box cover, wherein the seal has a accommodating channel extending along its length direction, and the accommodating channel is used to accommodate a gas or liquid medium; a controller, the controller is used to control the filling amount of the medium in the accommodating channel, and adjust the pressure value in the accommodating channel to adjust the volume expansion rate of the seal.

[0006] According to the battery box of the embodiment of the utility model, by arranging a seal with an adjustable volume expansion rate between the box body and the box cover, the pressure in the accommodating channel can be adjusted according to actual conditions, thereby adjusting the sealing ability of the seal, so that the assembly gap between the box body and the box cover can be reliably sealed, with strong flexibility and stable sealing effect.

[0007] In addition, the battery box according to the utility model may also have the following additional technical features:

[0008] In some embodiments of the present invention, a first positioning portion is provided on the box body and / or the box cover, and the first positioning portion is used to limit the position of the sealing element.

[0009] In some embodiments of the present invention, a second positioning portion is provided on the sealing member, and the second positioning portion is positioned and matched with the first positioning portion.

[0010] In some embodiments of the present invention, a plurality of second positioning portions are spaced apart along the length direction of the seal, a plurality of first positioning portions are provided, and the plurality of first positioning portions correspond to the plurality of second positioning portions in a one-to-one manner.

[0011] In some embodiments of the present invention, the first positioning portion is a positioning groove, and the second positioning portion is a positioning block, and the positioning block is positioned and fitted in the positioning groove.

[0012] In some embodiments of the present invention, the positioning block includes a first leg and a second leg, and an angle is formed between the first leg and the second leg.

[0013] In some embodiments of the present invention, the positioning groove includes a first groove body and a second groove body, the first groove body extends along the length direction of the first leg, the second groove body extends along the length direction of the second leg, the first leg is positioned and fitted in the first groove body, and the second leg is positioned and fitted in the second groove body.

[0014] In some embodiments of the utility model, the battery box also includes a sensor, an assembly groove is provided on the positioning block, at least a portion of the sensor is embedded in the assembly groove, the sensor is used to obtain the pressure value in the accommodating channel, and the controller is used to control the filling amount of the medium in the accommodating channel according to the pressure value, wherein, when there are multiple positioning blocks, at least one of the positioning blocks is provided with a sensor.

[0015] In some embodiments of the utility model, the battery box also includes a medium storage device, which is connected to the accommodating channel. The controller is used to control the connection state between the medium storage device and the accommodating channel, and control the flow direction of the medium between the medium storage device and the accommodating channel.

[0016] In some embodiments of the present invention, the medium includes: air, CO 2 ,、N 2 , inert gas, perfluorohexanone, and one of heptafluoropropane.

[0017] In some embodiments of the present invention, the box body and the box cover are fixedly connected by screws.

[0018] In some embodiments of the present invention, the sealing component is an integral injection molded component.

[0019] In some embodiments of the present invention, a sealing groove is provided on the box body and / or the box cover, and a portion of the sealing element is located in the sealing groove.

[0020] In some embodiments of the utility model, the box body includes a bottom plate and a surrounding plate connected to the outer periphery of the bottom plate, the bottom plate and the surrounding plate define a accommodating cavity for accommodating the battery cell, the surrounding plate is fixedly connected to the box cover, and the sealing groove is provided at the end of the surrounding plate facing the box cover, and the sealing groove is constructed by being recessed on the inner side surface of the surrounding plate toward a direction away from the accommodating cavity.

[0021] The utility model also provides a battery having the battery box of the above embodiment.

[0022] According to the battery of the utility model, by providing the battery box of the above embodiment, the battery can have better sealing performance. In addition, when the accommodating channel is filled with gas or liquid with fire extinguishing properties, the effect of automatic fire extinguishing can be achieved.

[0023] The utility model also provides a battery having the electrical equipment of the above embodiment.

[0024] According to the electric equipment of the embodiment of the utility model, by being provided with the battery of the above embodiment, the electric power consumption stability and safety of the electric equipment can be better ensured.

[0025] Optionally, the electrical equipment may be a vehicle. When the battery of the present application is applied to a vehicle, it can not only better protect the battery cells in the battery box, but also better realize automatic fire extinguishing for the vehicle. Moreover, since the battery box can be equipped with a medium storage device with fire extinguishing performance, the automatic fire extinguishing capability of the vehicle can be further improved.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0028] Figure 1 It is a structural schematic diagram of a battery box according to an embodiment of the utility model.

[0029] Figure 2 is an exploded diagram of a battery according to an embodiment of the utility model.

[0030] Figure 3 yes Figure 2 Magnified view of area A.

[0031] Figure 4 yes Figure 2 Magnified view of area B.

[0032] Figure 5 It is a schematic structural diagram of a battery box body according to an embodiment of the utility model.

[0033] Figure 6 yes Figure 5 Magnified view of area C.

[0034] Figure 7 It is a cross-sectional view of a battery box according to an embodiment of the utility model.

[0035] Figure 8 yes Figure 7 Magnified view of area D in the middle.

[0036] Reference numerals:

[0037] Battery box 10,

[0038] Box body 1, box body 11, positioning groove 111, first slot body 1111, second slot body 1112, sealing groove 112, bottom plate 113, enclosure plate 114, box cover 12,

[0039] Sealing member 2, accommodating channel 21, positioning block 22, first leg 221, second leg 222,

[0040] Battery cell 20. DETAILED DESCRIPTION

[0041] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0042] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0043] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0044] Reference below Figure 1-Figure 8 A battery box 10 according to an embodiment of the present invention is described.

[0045] like Figure 1-Figure 8As shown, the battery box 10 according to the embodiment of the utility model includes a box body 1, a sealing member 2 and a controller (not shown in the figure), the box body 1 includes a box body 11 and a box cover 12, and the box cover 12 is used to close the opening of the box body 11, that is, the battery cell 20 can be placed in the box body 11. When the battery cell 20 is placed in the box body 11, the opening of the box body 11 can be closed by the box cover 12 to seal the battery cell 20 in the box body 1. After the box cover 12 is connected to the box body 11, in order to further improve the sealing between the box cover 12 and the box body 11, the assembly gap between the box cover 12 and the box body 11 can be sealed by the sealing member 2.

[0046] Regarding the seal 2, the seal 2 of the present application is a deformable seal 2, and the seal 2 is arranged between the box body 11 and the box cover 12 to seal the assembly gap between the box body 11 and the box cover 12, wherein the seal 2 has a accommodating channel 21 extending along its length direction, and the accommodating channel 21 is used to accommodate a gas or liquid medium, and the controller is used to control the filling amount of the medium in the accommodating channel 21 to adjust the volume expansion rate of the seal 2.

[0047] That is to say, the seal 2 of the present application is a hollow seal 2, which is light in weight and has a good lightweight effect. The accommodating channel 21 is provided in the seal 2, and the volume expansion rate of the seal 2 can be changed by changing the volume of the accommodating channel 21, thereby adjusting the sealing ability of the seal 2 to the assembly gap. Compared with the sealing structure of the battery box 10 in the prior art, the sealing structure is often a sealing ring, foam, sealing glue, etc., and these sealing structures are often solid. After the seal 2 is assembled, as the stress of the sealing structure decays or the sealing structure gradually ages, the problem of sealing failure often occurs, which directly makes the assembly gap unable to be fully sealed, thereby affecting the sealing space of the box body 1, and then affecting the battery in the sealed space, so that the battery is eroded by the external environment. As long as the sealing property of the accommodating channel 21 is not affected, the seal 2 of the present application can still change the volume expansion rate of the seal 2 by changing the pressure value in the accommodating channel 21, thereby adjusting the volume of the seal 2, thereby more flexibly ensuring the sealing performance of the seal 2. Furthermore, since the volume expansion rate of the seal 2 of the present application can be changed, the flatness requirement at the assembly position is relatively low, so the flatness accuracy of the box body 11 or the box cover 12 can be reduced, thereby reducing the production cost of the box body 11 or the box cover 12.

[0048] For example, when the temperature is too low, the gas or liquid in the receiving channel 21 decreases due to the decrease in temperature, so that the pressure value of the receiving channel 21 decreases, and the seal 2 shrinks and deforms, so that the volume of the seal 2 decreases accordingly. At this time, the controller can be used to add gas or liquid to the receiving channel 21, so that the pressure value of the receiving channel 21 increases, so that the volume of the seal 2 increases again, and then the assembly space is fully sealed. Further, when the temperature is too high, the gas or liquid in the receiving channel 21 increases due to the change in temperature, so that the pressure value in the receiving channel 21 increases, and the seal 2 expands and deforms, so that the volume of the seal 2 increases accordingly. At this time, the transitional expansion of the seal 2 is easy to squeeze the box body 11 or the box cover 12, and it is easy to cause the box body 11 or the box cover 12 to deform, or cause certain damage to the seal 2. The gas or liquid in the receiving channel 21 can be discharged partially through the controller, so that the seal 2 can reliably seal the assembly gap without causing damage to the box body 11, the box cover 12 or itself, with strong flexibility and stable and reliable sealing effect.

[0049] For the above example, it can be understood that the volume of the seal 2 and the gas or liquid medium in the accommodating channel 21 can also be changed by other factors. When the changes occur, the seal 2 of the present application can adjust the pressure in the accommodating channel 21 according to actual conditions, thereby adjusting the sealing ability of the seal 2, so that the assembly gap between the box body 11 and the box cover 12 can be reliably sealed.

[0050] According to the battery box 10 of the embodiment of the utility model, by setting a seal 2 with an adjustable volume expansion rate between the box body 11 and the box cover 12, the pressure in the accommodating channel 21 can be adjusted according to actual conditions, thereby adjusting the sealing ability of the seal 2, so that the assembly gap between the box body 11 and the box cover 12 can be reliably sealed, with strong flexibility and stable sealing effect.

[0051] In some embodiments of the present invention, Figure 1-Figure 2 As shown, a first positioning portion is provided on the box body 11 and / or the box cover 12, and the first positioning portion is used to limit the position of the seal 2. That is to say, through the first positioning portion, the assembly of the seal 2 can be positioned relatively quickly, the assembly efficiency of the seal 2 can be improved, and after the seal 2 is assembled, the position of the seal 2 can also be limited, so that when the box body 11 and the box cover 12 are fixedly connected, the position of the seal 2 can be prevented from changing, thereby affecting the sealing effect of the seal 2.

[0052] like Figure 1-Figure 2As shown, in one example, a first positioning portion can be provided on the box body 11, or on the box cover 12, or on both the box body 11 and the box cover 12, and when the first positioning portion is provided on both the box body 11 and the box cover 12, the first positioning portion on the box body 11 can be arranged opposite to the first positioning portion on the box cover 12. The relative arrangement here means that the first positioning portion on the box body 11 can position the two sides of the same position of the seal 2 together with the first positioning portion on the box cover 12. In another example, when the first positioning portion is provided on both the box body 11 and the box cover 12, the first positioning portion on the box body 11 can be arranged opposite to the first positioning portion on the box cover 12, that is, the first positioning portion on the box body 11 can position the seal 2 at different positions together with the first positioning portion on the box cover 12. The above is not limited and can be arranged according to specific work and design conditions.

[0053] In some embodiments of the present invention, Figure 1-Figure 2 As shown, the seal 2 is provided with a second positioning portion, and the second positioning portion is positioned and matched with the first positioning portion. Thus, the mutual cooperation between the first positioning portion and the second positioning portion can facilitate the positioning and assembly of the seal 2, and when the box body 11 and the box cover 12 are fixedly connected, it is helpful to limit the position of the seal 2.

[0054] In some embodiments of the present invention, Figure 1-Figure 2 As shown, a plurality of second positioning parts are provided at intervals along the length direction of the sealing member 2, a plurality of first positioning parts are provided, and the plurality of first positioning parts are matched with the plurality of second positioning parts in a one-to-one correspondence. Thus, it is more convenient to position and assemble the sealing member 2, and it is more convenient to limit the position of the sealing member 2 when the box body 11 and the box cover 12 are fixedly connected.

[0055] In some embodiments of the present invention, Figure 1-Figure 8 As shown, the first positioning portion is a positioning groove 111, and the second positioning portion is a positioning block 22, and the positioning block 22 is positioned and matched in the positioning groove 111. Here, the positioning groove 111 can be a square groove, a circular groove, or a groove of other shapes, which is not limited here, and the shape of the positioning block 22 can be cylindrical, square column, etc., which is not limited here. The present application not only facilitates the assembly of the seal 2 through the cooperation of the positioning groove 111 and the positioning block 22, but also because the structure of the positioning groove 111 and the positioning block 22 is relatively simple, it can better reduce the production cost of the battery box 10 of the present application.

[0056] In some embodiments of the present invention, Figure 2-Figure 6As shown, the positioning block 22 includes a first leg 221 and a second leg 222, and an angle is formed between the first leg 221 and the second leg 222. Therefore, after the first leg 221 and the second leg 222, which form an angle with each other, are positioned and matched with the positioning groove 111, the seal 2 can be limited in multiple directions, so that the seal 2 can be stably maintained in the sealing position, thereby improving the sealing effect of the seal 2.

[0057] Optionally, the positioning groove 111 includes a first groove body 1111 and a second groove body 1112, the first groove body 1111 extends along the length direction of the first leg 221, the second groove body 1112 extends along the length direction of the second leg 222, the first leg 221 is positioned and fitted in the first groove body 1111, and the second leg 222 is positioned and fitted in the second groove body 1112.

[0058] Reference Figure 3 In a specific example shown, the first leg 221 and the second leg 222 are both long strips of square blocks, the first leg 221 and the second leg 222 are perpendicular to each other, one end of the first leg 221 is connected to the body of the seal 2, and the other end of the first leg 221 is connected to the middle of the second leg 222, thereby, the first leg 221 and the second leg 222 form a "T"-shaped structure, the positioning groove 111 includes a first groove body 1111 and a second groove body 1112 whose extension directions are perpendicular to each other, the first groove body 1111 is connected between the second groove body 1112 and the sealing groove 112, that is, the positioning groove 111 can also be set to a "T"-shaped structure, when the positioning block 22 of the "T"-shaped structure is positioned and matched with the positioning groove 111 of the "T"-shaped structure, the positioning block 22 is not easy to detach from the positioning groove 111, so that the position of the seal 2 can be better positioned with good stability.

[0059] Optionally, the angle between the first leg 221 and the second leg 222 can be a right angle or an acute angle. The present application does not limit the angle between the first leg 221 and the second leg 222. Specifically, the angle between the first leg 221 and the second leg 222 can be, for example, 30°, 40°, 50°, 60°, 70°, 80°, 90°, etc.

[0060] Furthermore, Figure 3 In the specific example shown, the positioning block 22 is located at the outer periphery of the seal 2. In other examples, the positioning block 22 may also be located at the inner periphery of the seal 2, or the positioning block 22 may be provided on both the outer periphery and the inner periphery of the seal 2. The present application does not impose any restrictions on this.

[0061] In some embodiments of the utility model, the battery box 10 also includes a sensor, and an assembly groove is provided on the positioning block 22. At least a part of the sensor is embedded in the assembly groove. The sensor is used to obtain the pressure value in the accommodating channel 21, and the controller is used to control the filling amount of the medium in the accommodating channel 21 according to the pressure value. When there are multiple positioning blocks 22, at least one positioning block 22 is provided with a sensor.

[0062] Reference Figure 2 As shown, the box body 1 is a rectangular box body 1, and positioning grooves 111 are provided at the four corners of the box body 11. Four sensors can be provided, and the four sensors are respectively installed in the assembly grooves of the four positioning blocks 22 in a one-to-one correspondence. Therefore, the pressure in the accommodating channel 21 can be better detected, so that the controller can control the pressure value of the accommodating channel 21, thereby ensuring the sealing performance of the seal 2.

[0063] In some embodiments of the present invention, the battery box 10 further includes a medium storage device, which is connected to the receiving channel 21. The controller is used to control the connection state between the medium storage device and the receiving channel 21, and to control the flow direction of the medium between the medium storage device and the receiving channel 21. By providing the medium storage device, not only can the medium in the receiving channel 21 be better provided, but also the medium discharged from the receiving channel 21 can be better stored, so that the medium in the receiving channel 21 can be replenished or discharged at any time.

[0064] In some embodiments of the present invention, the medium includes: air, CO 2 ,、N 2 , inert gas, perfluorohexanone, heptafluoropropane. Of course, the medium can also be other gases or liquids, which are not limited here.

[0065] For the gases or liquids listed above, CO 2 ,、N 2 , inert gas, perfluorohexanone, heptafluoropropane as examples, such as Figure 1 and Figure 2 As shown, when the battery cell 20 in the battery box 10 undergoes thermal runaway, the seal 2 is easily melted, causing the CO 2 ,、N 2 , inert gas, perfluorohexanone, and heptafluoropropane are discharged. When such gases are released into the battery box 10, they can effectively extinguish the high-temperature flames generated by thermal runaway of the battery cells 20 in the battery box 10, thereby playing the role of automatic fire extinguishing. In addition, when the gas or liquid in the accommodating channel 21 is discharged due to fire extinguishing, the controller can also control the gas or liquid in the medium storage to be replenished, thereby further improving the effect of automatic fire extinguishing.

[0066] In some embodiments of the utility model, the box body 11 and the box cover 12 are fixedly connected by screws, thereby facilitating the disassembly and assembly of the box body 11 and the box cover 12, and facilitating the adjustment of the gap in the assembly space between the box body 11 and the box cover 12. In addition, with the seal 2 having an adjustable volume expansion rate, the connection between the box body 11 and the box cover 12 is more flexible, and the sealing can also be more reliable.

[0067] In one example, the seal 2 can be made of a rubber material, and the seal 2 made of a rubber material can be manufactured by an integral injection molding method, with a simple structure and convenient operation. Optionally, the cross-sectional shape of the accommodating channel 21 in the seal 2 can be circular, square or other shapes, which are not limited here. Taking the circular cross-sectional shape of the accommodating channel 21 as an example, when the pressure in the accommodating channel 21 changes, the volume of the seal 2 can be more uniformly increased or decreased in the circumferential direction, and the square cross-sectional shape of the accommodating channel 21 can better make the volume of the seal 2 expand or shrink in a better direction. Therefore, the cross-sectional shape of the accommodating channel 21 can be designed according to actual work requirements, and this application can be not limited.

[0068] In some embodiments of the present invention, Figure 3-Figure 6 As shown, a sealing groove 112 is provided on the box body 11 and / or the box cover 12, and part of the sealing member 2 is located in the sealing groove 112. In one example, the sealing groove 112 can be provided on the box body 11. By providing the sealing groove 112, the position of the sealing member 2 can be better restricted, and the expansion direction of the sealing member 2 can also be better controlled, thereby facilitating the improvement of the sealing performance of the sealing member 2. In addition, a part of the sealing member 2 can be located in the sealing groove 112, and another part can be exposed from the sealing groove 112. The exposed part of the sealing member 2 can be filled in the assembly gap between the box body 11 and the box cover 12, thereby achieving the sealing of the assembly gap.

[0069] In some embodiments of the present invention, Figure 3-Figure 6 As shown, the box body 11 includes a bottom plate 113 and a surrounding plate 114 connected to the outer periphery of the bottom plate 113. The bottom plate 113 and the surrounding plate 114 define a receiving cavity for receiving the battery cell 20. The surrounding plate 114 is fixedly connected to the box cover 12. The end of the surrounding plate 114 facing the box cover 12 is provided with a sealing groove 112. The sealing groove 112 is formed by the inner side surface of the surrounding plate 114 being concave in the direction away from the receiving cavity. Therefore, when the battery cell 20 has thermal runaway, the sealing member 2 can be baked more easily, so that the sealing member 2 is broken, and then the gas or liquid with fire extinguishing characteristics in the receiving channel 21 is released, thereby playing the role of automatic fire extinguishing.

[0070] The utility model also provides a battery having the battery box 10 of the above embodiment.

[0071] According to the battery of the utility model, by providing the battery box 10 of the above embodiment, the battery can have better sealing performance. In addition, when the accommodating channel 21 is filled with gas or liquid with fire extinguishing properties, the effect of automatic fire extinguishing can be achieved.

[0072] The utility model also provides a battery having the electrical equipment of the above embodiment.

[0073] According to the electric equipment of the embodiment of the utility model, by being provided with the battery of the above embodiment, the electric power consumption stability and safety of the electric equipment can be better ensured.

[0074] Optionally, the electrical equipment may be a vehicle. When the battery of the present application is applied to a vehicle, it can not only better protect the battery cells 20 in the battery box 10, but also better realize automatic fire extinguishing for the vehicle. Moreover, since the battery box 10 can be equipped with a medium storage device with fire extinguishing performance, the automatic fire extinguishing capability of the vehicle can be further improved.

[0075] Other structures and operations of the battery box 10, batteries and electrical equipment according to the embodiment of the utility model are well known to ordinary technicians in the field and will not be described in detail here.

[0076] In the description of this specification, the description with reference to the terms "some embodiments", "optionally", "further" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0077] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A battery box, characterized in that: include: A box body, the box body comprising a box body and a box cover, the box cover is used to close the opening of the box body; A deformable sealing member, which is arranged between the box body and the box cover to seal the assembly gap between the box body and the box cover, wherein the sealing member has a receiving channel extending along its length direction, and the receiving channel is used to receive a gas or liquid medium; A controller is used to control the filling amount of the medium in the accommodating channel and adjust the pressure value in the accommodating channel to adjust the volume expansion rate of the sealing element.

2. The battery box according to claim 1, characterized in that: The box body and / or the box cover is provided with a first positioning portion, and the first positioning portion is used to limit the position of the sealing element.

3. The battery box according to claim 2, characterized in that: The sealing member is provided with a second positioning portion, and the second positioning portion is positioned and matched with the first positioning portion.

4. The battery box according to claim 3, characterized in that: A plurality of the second positioning portions are provided at intervals along the length direction of the seal, a plurality of the first positioning portions are provided, and the plurality of the first positioning portions are matched with the plurality of the second positioning portions in a one-to-one correspondence.

5. The battery box according to claim 3 or 4, characterized in that: The first positioning portion is a positioning groove, and the second positioning portion is a positioning block, and the positioning block is positioned and matched in the positioning groove.

6. The battery box according to claim 5, characterized in that: The positioning block includes a first leg and a second leg, and an angle is formed between the first leg and the second leg.

7. The battery box according to claim 6, characterized in that: The positioning groove includes a first groove body and a second groove body, the first groove body extends along the length direction of the first leg, the second groove body extends along the length direction of the second leg, the first leg is positioned and fitted in the first groove body, and the second leg is positioned and fitted in the second groove body.

8. The battery box according to claim 5, characterized in that: It also includes a sensor, the positioning block is provided with an assembly groove, at least part of the sensor is embedded in the assembly groove, the sensor is used to obtain the pressure value in the accommodating channel, and the controller is used to control the filling amount of the medium in the accommodating channel according to the pressure value, wherein, when multiple positioning blocks are provided, at least one of the positioning blocks is provided with a sensor.

9. The battery box according to claim 1, characterized in that: It also includes a medium storage device, which is connected to the accommodating channel. The controller is used to control the communication state between the medium storage device and the accommodating channel, and control the flow direction of the medium between the medium storage device and the accommodating channel.

10. The battery box according to claim 1, characterized in that: The medium includes: one of air, CO2, N2, inert gas, perfluorohexanone and heptafluoropropane.

11. The battery box according to claim 1, characterized in that: The box body and the box cover are fixedly connected by screws.

12. The battery box according to claim 1, characterized in that: The sealing member is an integral injection-molded member.

13. The battery box according to any one of claims 1 to 12, characterized in that: The box body and / or the box cover are provided with a sealing groove, and part of the sealing element is located in the sealing groove.

14. The battery box according to claim 13, characterized in that: The box body includes a bottom plate and a surrounding plate connected to the outer periphery of the bottom plate, the bottom plate and the surrounding plate define a accommodating cavity for accommodating the battery cell, the surrounding plate is fixedly connected to the box cover, the sealing groove is provided at the end of the surrounding plate facing the box cover, and the sealing groove is constructed by being recessed from the inner side surface of the surrounding plate in a direction away from the accommodating cavity.

15. A battery, characterized in that: A battery box comprising any one of claims 1-14.

16. An electrical equipment, characterized in that: Comprising the battery of claim 15.

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