Battery device and electric equipment

Abstract

The utility model discloses a battery device and electric equipment, and relates to the technical field of power batteries, the battery device comprises a box body and a plurality of battery monomers, the box body comprises a box body and an upper cover, the box body comprises a mounting plate and a frame, the mounting plate comprises a plate body and a reinforcing member arranged on the plate body, the plate body is also provided with an exhaust hole, and the exhaust hole is communicated with the upper cover. The exhaust holes and the reinforcers are arranged at intervals; the mounting plate is mounted on the frame, the mounting plate and the frame jointly define a containing groove for containing the battery monomers, and the upper cover covers an opening of the containing groove. The structural strength of the battery device can be improved.

Description

TECHNICAL FIELD

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

[0002] For the battery device designed according to the bottom spray scheme, the exhaust valve of the battery monomer is arranged towards the mounting plate. In order to timely discharge the exhaust of the exhaust valve, an exhaust hole needs to be arranged on the mounting plate, which causes the weak structure rigidity of the box body. CONTENT OF THE UTILITY MODEL

[0003] The main purpose of the present application is to provide a battery device and an electric equipment, which aims to at least improve the technical problem of weak structure rigidity of the box body of the battery device.

[0004] According to some embodiments of the present application, the present application provides a battery device, comprising a box body and a plurality of battery monomers, the box body comprising a box body and an upper cover, the box body comprising a mounting plate and a reinforcing member arranged on the plate body, the plate body further comprising an exhaust hole, the exhaust hole being arranged apart from the reinforcing member; the mounting plate is mounted on the frame, and the mounting plate and the frame jointly define a containing groove for containing a plurality of battery monomers, and the upper cover covers the opening of the containing groove.

[0005] By arranging the reinforcing member on the plate body of the mounting plate, the structure of the mounting plate can be strengthened, the structure strength of the mounting plate caused by the arrangement of the exhaust hole can be compensated, and the structure strength of the battery device can be improved.

[0006] In some embodiments, the plate body is provided with a plurality of rows of exhaust hole groups, each row of exhaust hole groups comprises a plurality of exhaust holes, the number of reinforcing members is a plurality, and the plurality of reinforcing members are arranged along the arrangement direction of the plurality of rows of exhaust hole groups, and each reinforcing member is arranged along the arrangement direction of the exhaust hole.

[0007] By arranging the reinforcing member on the plate body of the mounting plate, the plurality of reinforcing members are arranged along the arrangement direction of the plurality of rows of exhaust hole groups, and each reinforcing member is arranged along the arrangement direction of the exhaust hole. The structure of the plate body can be strengthened at the positions where the structure strength is weak due to the arrangement of the exhaust hole, and the structure strength of the battery device can be better strengthened.

[0008] In some embodiments, the reinforcing member and the exhaust hole group are alternately and separately arranged.

[0009] By alternately and separately arranging the reinforcing member and the exhaust hole group, the mounting plate can be strengthened from various positions, and the influence of the arrangement of the reinforcing member on the exhaust hole can be reduced.

[0010] The mounting plate has the following specific embodiments:

[0011] In the first embodiment, the mounting plate is a profiled plate, the plate body comprises an aluminum plate, and the reinforcing member comprises a plurality of fins arranged on the aluminum plate, the fins being alternately and spacedly arranged with the groups of exhaust holes.

[0012] By adopting the profiled plate as the mounting plate, the mounting plate comprises the aluminum plate and the fins arranged on the aluminum plate, which can not only strengthen the structural strength of the battery device, but also simplify the manufacturing process, and the manufactured box body is light in weight and good in heat dissipation.

[0013] In some embodiments, each fin comprises a plurality of sub-fins, the plurality of sub-fins being arranged in parallel and spacedly, and each sub-fin extends along the arrangement direction of a row of exhaust holes.

[0014] By arranging the fins to comprise the plurality of sub-fins, the structural strength of the plate body can be strengthened from multiple position points, and the structural strength of the battery device is improved.

[0015] In some embodiments, the plate body is a steel plate, the reinforcing member comprises a plurality of strip steels, the plurality of strip steels are welded with the steel plate, and the strip steels are alternately and spacedly arranged with the groups of exhaust holes.

[0016] In some embodiments, each strip steel comprises at least two square steels, the at least two square steels are arranged in parallel and spacedly, each square steel extends along the arrangement direction of a row of exhaust holes, and each square steel is arranged close to the adjacent group of exhaust holes.

[0017] By arranging the strip steel to comprise the at least two square steels, the structural strength of the plate body can be strengthened from multiple position points, and the structural strength of the battery device is improved.

[0018] In some embodiments, the plate body is a steel plate, the reinforcing member comprises a reinforcing support, and the reinforcing support is mounted on the steel plate.

[0019] By adopting the steel plate to manufacture the plate body, and arranging the reinforcing support on the plate body, the structural strength of the battery device can be further improved.

[0020] In some embodiments, the plate body is a steel plate, the reinforcing member comprises a stamping groove, the stamping groove is stamped from the steel plate, the stamping groove is alternately and spacedly arranged with the groups of exhaust holes, and each stamping groove extends along the arrangement direction of a row of exhaust holes.

[0021] By adopting the stamping groove to form the reinforcing member, the structural strength can be effectively strengthened, and the stamping forming has high manufacturing efficiency.

[0022] In some embodiments, the reinforcing member is arranged on a side of the plate body away from the accommodating groove.

[0023] By arranging the reinforcing member on the side of the plate body away from the accommodating groove, the occupancy of the battery cell installation space can be reduced.

[0024] In some embodiments, the frame is welded or riveted to the mounting plate.

[0025] By using the welding or riveting connection method, the installation is simple, and both have a certain installation strength.

[0026] In some embodiments, the battery device further comprises a bottom guard plate, a locking member, a sealing gasket, and a sealing adhesive layer, the bottom guard plate is arranged on a side of the mounting plate away from the battery cell; the bottom guard plate, the sealing gasket, and the frame are sequentially stacked and connected by the locking member; the sealing adhesive layer is arranged around the outer periphery of the sealing gasket, and the two sides of the sealing adhesive layer are respectively in abutment with the bottom guard plate and the frame.

[0027] By arranging the sealing gasket layer between the bottom guard plate and the frame, and firmly connecting them together by the locking member, and further sealing the edge position of the bottom guard plate and the frame by arranging the sealing adhesive layer around the outer periphery of the sealing gasket, the sealing structure formed is beneficial to improving the reliability of the sealing between the bottom guard plate and the frame.

[0028] In some embodiments, the locking member comprises a bolt and a rivet, and the bottom guard plate is a square plate.

[0029] The bolts are arranged in sequence on the four edges of the bottom guard plate, and sequentially connect the bottom guard plate, the sealing gasket, and the frame.

[0030] The rivet comprises a rivet nut and a screw rod mounted on the rivet nut, the rivet nut sequentially penetrates the bottom guard plate, the sealing gasket, and the frame, and the rivet nut is arranged at the top corner position of the bottom guard plate.

[0031] By arranging the bolts in sequence on the four edges of the square plate, the rivet comprises a rivet nut and a screw rod mounted on the rivet nut, the rivet nut sequentially penetrates the bottom guard plate, the sealing gasket, and the frame, and the rivet nut is arranged at the top corner position of the bottom guard plate, and in cooperation with the use of the sealing adhesive layer, a triple sealing structure is used for sealing, which can improve the sealing effect of the bottom guard plate.

[0032] The above description is only a summary of the technical solutions of the present application, in order to more clearly understand the technical means of the present application, which can be implemented in accordance with the content of the specification, and in order to make the above and other purposes, features 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

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from the structures shown in the drawings without creative labor.

[0034] Figure 1 Structure diagram of a vehicle according to some embodiments of the present application;

[0035] Figure 2 Structure diagram of a battery according to some embodiments of the present application;

[0036] Figure 3 Structure diagram of a part of a box of a battery device according to some embodiments of the present application;

[0037] Figure 4 Structure diagram of a part of a box of a battery device according to some embodiments of the present application;

[0038] Figure 5 Structure diagram of a mounting plate of a battery device according to some embodiments of the present application;

[0039] Figure 6 Structure diagram of a mounting plate of a battery device according to some embodiments of the present application; Figure 5 Structure diagram of a mounting plate of a battery device according to some embodiments of the present application;

[0040] Figure 7 Structure diagram of a mounting plate of a battery device according to some embodiments of the present application;

[0041] Figure 8 Structure diagram of a mounting plate of a battery device according to some embodiments of the present application;

[0042] Figure 9 Structure diagram of a box of a battery device according to some embodiments of the present application;

[0043] Figure 10 Structure diagram of a part of a box of a battery device according to some embodiments of the present application.

[0044] BRIEF DESCRIPTION OF DRAWINGS

[0045] 1000, vehicle;

[0046] 100, battery device; 200, controller; 300, motor;

[0047] 10, box; 11, upper cover; 12, box body;

[0048] 20, battery cell;

[0049] 1, frame; 2, mounting plate; 21, plate body; 211, aluminum plate; 212, steel plate; 22, reinforcing member; 221, fin; 2211, sub-fin; 222, strip steel; 2221, square steel; 223, punched groove; 23, exhaust hole group; 231, exhaust hole; 3, accommodating groove; 4, bottom guard plate; 5, gasket; 6, bolt; 7, pull-rivet nut; 8, sealing glue layer.

[0050] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments will be described clearly and completely below with reference to the drawings in the embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0052] It should be noted that all directional indications, such as up, down, left, right, front, back, etc., in the embodiments are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0053] In addition, the description such as "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0054] In the present application, unless otherwise specifically defined and limited, the terms "connection", "fixation" and the like should be understood broadly, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0055] In addition, the technical solutions among the various embodiments of the present application can be combined with each other, but it must be based on the implementation by the ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection required by the present application. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0056] The description of "up", "down", "front", "back", "left", "right" and the like in the present application is based on the orientation shown in the drawings, and is only used to explain the relative positional relationship between the components in the posture shown in the drawings. If the specific posture changes, the directional indication also changes accordingly.

[0057] At present, from the development of market situation, the application of power battery is more and more widely. Power battery is not only applied to energy storage power supply system of water power, fire power, wind power and solar power station, but also widely used in electric bicycles, electric motorcycles, electric vehicles and other electric vehicles, military equipment, aerospace and other fields. With the continuous expansion of the application field of power battery, the market demand is also increasing.

[0058] The battery monomer is provided with an exhaust valve, and when some battery devices adopt the bottom spray scheme of the upright battery monomer, the exhaust valve of the battery monomer is arranged towards the mounting plate, so that an exhaust hole needs to be opened on the mounting plate for timely discharging the exhaust of the exhaust valve, and the number of battery monomers of one battery device is multiple, so that multiple exhaust holes need to be opened on the mounting plate, which reduces the structural strength of the mounting plate and the box, and further reduces the structural strength of the whole battery device.

[0059] In the technical solution of the present application, the battery device comprises a box and a plurality of battery monomers, the box comprises a box body and an upper cover, the box body comprises a mounting plate, the mounting plate comprises a plate body and a plurality of reinforcing members arranged on the plate body, the plurality of reinforcing members are arranged along the arrangement direction of the plurality of exhaust hole groups, and each reinforcing member is arranged along the arrangement direction of an exhaust hole. By adding reinforcing members on the mounting plate, the structural rigidity of the mounting plate can be improved, and thus the structural rigidity of the whole box and battery device can be improved.

[0060] Please refer to Figure 1 , Figure 1A structural schematic diagram of a vehicle 1000 is provided for some embodiments of the present application. The vehicle 1000 can be an electric device, which can be a fuel vehicle, a gas vehicle, or a new energy vehicle, such as a pure electric vehicle, a hybrid vehicle, or a range extended vehicle. The vehicle 1000 is internally provided with a battery device 100, which can be arranged at the bottom, head, or tail of the vehicle 1000. The battery device 100 can be used for power supply of the vehicle 1000, for example, the battery device 100 can be used as an operating power source of the vehicle 1000. The vehicle 1000 can further include a controller 200 and a motor 300, and the controller 200 is used to control the battery device 100 to supply power to the motor 300, for example, to meet the power demand of the vehicle 1000 during starting, navigation, and driving.

[0061] In some embodiments of the present application, the battery device 100 can not only be used as an operating power source of the vehicle 1000, but also be used as a driving power source of the vehicle 1000, to replace or partially replace fuel or natural gas to provide driving power for the vehicle 1000.

[0062] Please refer to Figure 2 , Figure 2 A disassembled structural schematic diagram of the battery device 100 is provided for some embodiments of the present application. The battery device 100 includes a box body 10 and a battery cell 20, and the battery cell 20 is contained in the box body 10. The box body 10 is used to provide a containing space for the battery cell 20, and the box body 10 can adopt various structures. In some embodiments, the box body 10 can include a box body 12 and an upper cover 11, and the box body 12 and the upper cover 11 are mutually covered to jointly define a containing space for containing the battery cell 20. The upper cover 11 can be a hollow structure with one end open, and the box body 12 can be a plate structure, which is covered on the open side of the upper cover 11 to jointly define the containing space with the upper cover 11; or the box body 12 and the upper cover 11 can both be hollow structures with one side open, and the open side of the box body 12 is covered on the open side of the upper cover 11. Of course, the box body 10 formed by the box body 12 and the upper cover 11 can have various shapes, such as a cylinder, a cuboid, etc.

[0063] The battery device 100 mentioned in the embodiments of the present application can include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly can include a plurality of battery cells 20, which are connected in series, in parallel, or in a mixed manner through a busbar component.

[0064] In some embodiments, the battery cell assembly is generally formed by arranging a plurality of battery cells 20.

[0065] As an example, the battery cell assembly can be a battery module, and the battery module is formed by arranging and fixing a plurality of battery cells 20 into one independent module. As an example, the battery module can be formed by bundling a plurality of battery cells 20 by a cable tie.

[0066] In some embodiments, the battery device 100 can be a battery pack, and the battery pack includes the box 10 and one or more battery cell assemblies, and the battery cell assemblies are accommodated in the box 10.

[0067] As an example, the battery cell assembly can be a battery module, and the battery cell assembly can be accommodated in the box 10 by fixing the battery module in the box 10.

[0068] As an example, the battery cell assembly can also be accommodated in the box 10 by directly fixing a plurality of battery cells 20 to the box.

[0069] In the battery device 100, the battery cells 20 can be a plurality of, and the plurality of battery cells 20 can be connected in series, in parallel, or in a mixed connection, where the mixed connection means that the plurality of battery cells 20 are connected in series and in parallel. The plurality of battery cells 20 can be directly connected in series, in parallel, or in a mixed connection, and the whole of the plurality of battery cells 20 is accommodated in the box 10; of course, the battery device 100 can also be that the plurality of battery cells 20 are first connected in series, in parallel, or in a mixed connection to form a battery module, and a plurality of battery modules are connected in series, in parallel, or in a mixed connection to form a whole, and the whole is accommodated in the box 10. The battery device 100 can also include other structures, for example, the battery device 100 can also include a current combiner for realizing the electrical connection between the plurality of battery cells 20.

[0070] Each battery cell 20 can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 20 can be in the shape of a cylinder, a flat body, a cuboid, or other shapes.

[0071] Reference Figures 2-4 According to some embodiments of the present application, the present application provides a battery device 100, which includes a box 10 and a plurality of battery cells 20, and the box 10 includes a box body 12 and an upper cover 11, the box body 12 includes a mounting plate 2 and a frame 1, the mounting plate 2 includes a plate body 21 and a plurality of reinforcing members 22 arranged on the plate body 21, and a plurality of exhaust hole groups 23 are arranged on the plate body 21, each exhaust hole group 23 includes a plurality of exhaust holes 231, and each exhaust hole 231 corresponds to an exhaust valve of a battery cell 20, and the plurality of reinforcing members 22 are arranged along the arrangement direction of the plurality of exhaust hole groups 23, and each reinforcing member 22 extends along the arrangement direction of an exhaust hole group 23; the mounting plate 2 is mounted on the frame 1, and the mounting plate 2 and the frame 1 jointly define an accommodation groove 3 for accommodating the plurality of battery cells 20, and the upper cover 11 covers the opening of the accommodation groove 3.

[0072] The box 10 is a rolling box, the box 10 comprises a box body 12 and an upper cover 11, the upper cover 11 covers the box body 12, the box body 12 comprises a frame 1 and a mounting plate 2 mounted on the frame 1, specifically, the mounting plate 2 is mounted on the side of the frame 1 away from the upper cover 11, the mounting plate 2 cooperates with the frame 1 to form a containing groove 3 for containing a plurality of battery monomers 20, and the mounting plate 2 is used for providing support for the battery monomers 20. At the same time, for the battery device 100 of the bottom spray scheme, it is necessary to provide an exhaust hole 231 for mounting the exhaust valve of the battery monomer 20 on the mounting plate 2. Specifically, the mounting plate 2 comprises a plate body 21 and a reinforcing piece 22 provided on the plate body 21, the plate body 21 is provided with the exhaust hole 231 for mounting the exhaust valve of the battery monomer 20, and the provision of the exhaust hole 231 reduces the structural strength of the mounting plate 2, and further reduces the structural strength of the box 10. Therefore, the reinforcing piece 22 provided on the plate body 21 plays a reinforcing role on the mounting plate 2.

[0073] By providing the reinforcing piece 22 on the plate body 21 of the mounting plate 2, the structural strength of the mounting plate 2 weakened due to the provision of the exhaust hole 231 is compensated, and the structural strength of the battery device 100 is improved.

[0074] Referring to the Figures 3-5 In some embodiments, a plurality of exhaust hole groups 23 are provided on the plate body 21, each exhaust hole group 23 comprises a plurality of exhaust holes 231, each exhaust hole 231 corresponds to an exhaust valve of a battery monomer 20, the number of reinforcing pieces 22 is a plurality, and the plurality of reinforcing pieces 22 are arranged along the arrangement direction of the plurality of exhaust hole groups 23, and each reinforcing piece 22 is arranged along the arrangement direction of an exhaust hole group 23.

[0075] The plate body 21 is provided with a plurality of exhaust hole groups 23 arranged along a first direction, each exhaust hole group 23 comprises a plurality of exhaust holes 231 arranged along a second direction, each exhaust hole 231 can correspond to an exhaust valve of a battery monomer 20, and the first direction and the second direction are both in the plane of the plate body 21 and perpendicular to each other. Specifically, the first direction is the length direction of the plate body 21, and the second direction is the width direction of the plate body 21. In Figures 4-7In the illustrated embodiment, the first direction is the direction indicated by Y, and the second direction is the direction indicated by X. Since a plurality of battery cells 20 are generally arranged in the case 10, the number of exhaust holes 231 and exhaust hole groups 23 is also generally plural, which reduces the structural strength of the mounting plate 2 and further reduces the structural strength of the case 10. Therefore, the reinforcing member 22 is arranged on the plate body 21 to reinforce the mounting plate 2. Specifically, the number of reinforcing members 22 can be plural, and the plurality of reinforcing members 22 are arranged along the arrangement direction of the plurality of exhaust hole groups 23, i.e., the first direction. In addition, each reinforcing member 22 can also extend along the arrangement direction of the exhaust holes 231 in each exhaust hole group 23, i.e., along the second direction. In this way, the reinforcing member 22 is arranged adjacent to the exhaust hole 231, which can reinforce the plate body 21 at the position where the structural strength of the plate body 21 is weak due to the arrangement of the exhaust hole 231, and better play the role of reinforcing the structural strength of the battery device 100.

[0076] By arranging the reinforcing member 22 on the plate body 21 of the mounting plate 2, the plurality of reinforcing members 22 are arranged along the arrangement direction of the plurality of exhaust hole groups 23, and each reinforcing member 22 extends along the arrangement direction of the exhaust hole group 23, which can reinforce the plate body 21 at the position where the structural strength of the plate body 21 is weak due to the arrangement of the exhaust hole 231, and better play the role of reinforcing the structural strength of the battery device 100.

[0077] In some embodiments, the reinforcing member 22 is alternately and spacedly arranged with the exhaust hole group 23.

[0078] The reinforcing member 22 is alternately arranged with the exhaust hole group 23, which can arrange the reinforcing member 22 near each position where the exhaust hole group 23 is arranged, and reinforce the mounting plate 2 from each position. In addition, in order to reduce the influence of the arrangement of the reinforcing member 22 on the exhaust hole group 23, such as the deformation of the exhaust hole 231 of the exhaust hole group 23 caused by the close arrangement during the manufacturing process, which causes the exhaust valve of the battery cell 20 to be unable to be normally installed, the reinforcing member 22 needs to be arranged at a distance from the exhaust hole group 23. The distance can be set according to actual needs.

[0079] By alternately and spacedly arranging the reinforcing member 22 with the exhaust hole group 23, the reinforcing member 22 can reinforce the mounting plate 2 from each position, and also reduce the influence of the arrangement of the reinforcing member 22 on the exhaust hole 231.

[0080] Regarding the specific structural form and material of the mounting plate 2, at least the following four specific embodiments are included:

[0081] For reference Figure 5In the first embodiment, the mounting plate 2 is a profiled plate, the plate body 21 comprises an aluminum plate 211, and the reinforcing member 22 comprises a plurality of fins 221 arranged on the aluminum plate 211, the fins 221 are alternately and spacedly arranged with the exhaust hole group 23.

[0082] The profiled plate refers to that the mounting plate 2 is an integrally formed plate, and the specific profiled plate is an aluminum profiled plate, that is, the plate body 21 and the reinforcing member 22 are both aluminum parts. The plate body 21 is an aluminum plate 211, and the reinforcing member 22 comprises fins 221 arranged on the aluminum plate 211. The fins 221 can be in the shape of a strip, a sawtooth, a wave, or other shapes. The fins 221 are arranged to strengthen the structural strength of the plate body 21, and thus strengthen the structural strength of the battery device 100. Moreover, the aluminum material is used to manufacture the integrally formed aluminum part, the manufacturing process is simple, the weight of the manufactured box body 10 is light, and the heat dissipation is good.

[0083] By adopting the profiled plate as the mounting plate 2, the mounting plate 2 comprises the aluminum plate 211 and the fins 221 arranged on the aluminum plate 211. Not only can the structural strength of the battery device 100 be strengthened, but also the manufacturing process is simple, the mass of the manufactured box body 10 is light, and the heat dissipation is good.

[0084] Referring to Figure 5 and Figure 6 In some embodiments, each fin 221 comprises a plurality of sub-fins 2211, and the plurality of sub-fins 2211 are arranged in parallel and spacedly. Each sub-fin 2211 extends along the arrangement direction of a row of exhaust holes 231.

[0085] The sub-fin 2211 is a protrusion arranged on the plate body 21, and the plurality of sub-fins 2211 are also arranged in the first direction, that is, arranged along the arrangement direction of a row of exhaust hole groups 23. By arranging each fin 221 to comprise a plurality of sub-fins 2211 arranged in parallel and spacedly, the lengths of the sub-fins 2211 are the same, and each sub-fin 2211 can extend from one end of the exhaust hole group 23 to the other end along the second direction.

[0086] By arranging the fin 221 to comprise a plurality of sub-fins 2211, the structural strength of the plate body 21 can be strengthened from multiple position points, and the structural strength of the battery device 100 is improved.

[0087] Referring to Figure 7 In the second embodiment, the plate body 21 is a steel plate 212, and the reinforcing member 22 comprises a plurality of strip steels 222, the plurality of strip steels 222 are welded with the steel plate 212, and the strip steels 222 are alternately and spacedly arranged with the exhaust hole group 23.

[0088] The plate body 21 is made of a steel plate 212, and the reinforcing member 22 is also made of a strip-shaped steel 222. The strip-shaped steel 222 is connected to the steel plate 212 by welding, and the strip-shaped steel 222 is arranged alternately and spaced apart from the exhaust hole group 23 to reinforce the plate body 21 from different positions. The thickness of the steel plate 212 can be 0.7 mm to 1.5 mm, such as 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, or 1.5 mm. Those skilled in the art can select the strength of the mounting plate 2 according to the actual needs. The plate body 21 made of the steel plate 212 has high strength, and the strip-shaped steel 222 can further improve the structural strength of the battery device 100.

[0089] Referring to Figure 7 In some embodiments, each strip-shaped steel 222 includes at least two square steels 2221 arranged in parallel and spaced apart. Each square steel 2221 extends along the arrangement direction of a row of exhaust holes 231, and each square steel 2221 is arranged close to an adjacent exhaust hole group 23.

[0090] The plurality of square steels 2221 are also arranged along the first direction, that is, arranged along the arrangement direction of a row of exhaust hole groups 23. Each strip-shaped steel 222 is arranged to include at least two square steels 2221 arranged in parallel and spaced apart. The lengths of the square steels 2221 are the same, and each square steel 2221 can extend from one end of the exhaust hole group 23 to the other end along the second direction.

[0091] By arranging the strip-shaped steel 222 to include at least two square steels 2221, the plate body 21 can be reinforced from multiple positions, and the structural strength of the battery device 100 can be improved.

[0092] In a third embodiment, the plate body 21 is a steel plate 212, and the reinforcing member 22 includes a reinforcing bracket mounted on the steel plate 212.

[0093] The reinforcing bracket has a similar effect to the strip-shaped steel 222, and also reinforces the plate body 21. The specific structure of the reinforcing bracket is not limited in the present application, and can be plate-shaped, strip-shaped, or other structures. The reinforcing bracket can be arranged at a position where the plate body 21 has relatively weak structural strength, such as a position close to the exhaust hole 231. Those skilled in the art can set the reinforcing bracket according to actual needs. The reinforcing bracket can also be made of steel and welded to the plate body 21.

[0094] By arranging the plate body 21 to be made of a steel plate 212 and arranging a reinforcing bracket on the plate body 21, the structural strength of the battery device 100 can be further improved.

[0095] Referring to Figure 8 In a fourth embodiment, the plate body 21 is a steel plate 212, and the reinforcing member 22 includes a punched groove 223 punched from the steel plate 212, the punched groove 223 being arranged alternately with the exhaust hole group 23, and each punched groove 223 extending along the arrangement direction of the exhaust hole group 23.

[0096] Here, the punched groove 223 refers to a groove provided on the plate body 21, and the punched groove 223 does not penetrate the plate body 21. The punched groove 223 can be punched from the plate body 21 on a punching machine, and can be punched synchronously with the formation of the exhaust hole 231. For example, the punched groove 223 and the exhaust hole 231 can be punched simultaneously in one punching process by designing a punching die. Such one-time punching of the reinforcing member 22 and the exhaust hole 231 can improve the manufacturing efficiency. Of course, the punched groove 223 can be punched first, and then the exhaust hole 231 can be punched in a second punching process. Alternatively, the exhaust hole 231 can be punched first, and then the punched groove 223 can be punched in a second punching process. Those skilled in the art can make settings according to actual needs. However, no matter how the punched groove 223 is punched, the reinforcing member 22 is formed by punching, which can improve the manufacturing efficiency of the mounting plate 2. Meanwhile, the punched groove 223 is arranged alternately with the exhaust hole group 23, and each punched groove 223 extends along the arrangement direction of the exhaust hole group 23. In this way, the reinforcing member 22 can be arranged at a position with relatively weak structural strength, thereby improving the effect of reinforcing the structure of the battery device 100.

[0097] By using the punched groove 223 to form the reinforcing member 22, the effect of reinforcing the structural strength is good, and the manufacturing efficiency of punching is high.

[0098] In some embodiments, the reinforcing member 22 is arranged on the side of the plate body 21 away from the accommodation groove 3.

[0099] The accommodation groove 3 is used to accommodate the battery monomer 20, and the reinforcing member 22 is arranged on the side of the plate body 21 away from the accommodation groove 3. The arrangement of the reinforcing member 22 does not occupy the space of the accommodation groove 3, thereby reducing the influence of the arrangement of the reinforcing member 22 on the volume energy density of the battery device 100.

[0100] By arranging the reinforcing member 22 on the side of the plate body 21 away from the accommodation groove 3, the installation space for the battery monomer 20 can be reduced.

[0101] In some embodiments, the frame 1 is welded or riveted to the mounting plate 2.

[0102] The welding structure has high strength, the riveting has high production efficiency, of course, the detachable connection can also be achieved by screw connection, and the detachable connection is convenient. The connection mode of the frame 1 and the mounting plate 2 can be set by the person skilled in the art according to actual needs. Further, the frame 1 is connected with the plate body 21 of the mounting plate 2.

[0103] By adopting the welding or riveting connection mode, the installation is simple, and both have certain installation strength.

[0104] Referring to Figure 9 and Figure 10 In some embodiments, the battery device 100 further comprises a bottom guard plate 4, a locking piece, a sealing gasket 5, and a sealing adhesive layer 8. The bottom guard plate 4 is arranged on the side of the mounting plate 2 away from the battery monomer 20. The bottom guard plate 4, the sealing gasket 5, and the frame 1 are sequentially stacked and connected by the locking piece. The sealing adhesive layer 8 is arranged around the outer periphery of the sealing gasket 5, and the two sides of the sealing adhesive layer 8 respectively abut against the bottom guard plate 4 and the frame 1.

[0105] It should be noted that when the battery device 100 adopts the bottom spray scheme of the upright battery monomer 20, the bottom guard plate 4 will bear the pressure when the battery monomer 20 is sprayed due to thermal runaway. Therefore, the sealing requirement for the bottom guard plate 4 is more stringent. The bottom guard plate 4 is arranged on the side of the mounting plate 2 away from the battery monomer 20, that is, on the bottom of the mounting plate 2. The locking piece is used to connect the bottom guard plate 4, the sealing gasket 5, and the frame 1 together. The two sides of the sealing gasket 5 respectively abut against the bottom guard plate 4 and the frame 1, and are tightly locked together with the bottom guard plate 4 and the frame 1 by the threaded piece, and the sealing effect is better. The locking piece here can be a threaded piece, such as a bolt 6 or a screw. In addition, in order to further improve the sealing between the frame 1 and the bottom guard plate 4, a layer of adhesive can also be coated between the frame 1 and the bottom guard plate 4 to form a sealing adhesive layer 8. Specifically, the sealing adhesive layer 8 can be arranged at the edge position between the frame 1 and the bottom guard plate 4, that is, around the outer periphery of the sealing gasket 5. As another re-sealing between the bottom guard plate 4 and the frame 1, it can further play a sealing role.

[0106] By arranging the sealing gasket 5 layer between the bottom guard plate 4 and the frame 1, and firmly connecting them together by the locking piece, and further sealing the edge position of the bottom guard plate 4 and the frame 1 by arranging the sealing adhesive layer 8 around the outer periphery of the sealing gasket 5, the sealing structure formed is conducive to improving the reliability of the sealing between the bottom guard plate 4 and the frame 1.

[0107] Referring to Figure 9 and Figure 10In some embodiments, the locking member includes a bolt 6 and a rivet 7, the bottom guard plate 4 is a square plate, the bolt 6 is arranged in sequence on the four edges of the square plate, and is sequentially connected to the bottom guard plate 4, the sealing gasket 5 and the frame 1, the rivet 7 includes a rivet nut and a screw rod installed on the rivet nut, the rivet nut sequentially penetrates the bottom guard plate 4, the sealing gasket 5 and the frame 1, and the rivet nut is arranged at the top corner position of the bottom guard plate 4.

[0108] The bolt 6 can be arranged on the four edges of the square bottom guard plate 4, which is convenient for installation and disassembly. The rivet 7 can be arranged near the top corner position of the bottom plate, that is, the rivet 7 can be arranged at all four top corner positions or at part of the top corner positions. Specifically, the rivet nut sequentially penetrates the bottom guard plate 4, the sealing gasket 5 and the frame 1 and extends into the cavity of the frame 1, and the screw rod is installed on the rivet nut. The rivet 7 has higher connection strength, and can also be connected to other components of the battery device 100 through the extended screw rod. Specifically, the present application includes a triple sealing structure, the bottom guard plate 4, the sealing gasket 5 and the frame 1 are sequentially stacked and connected by the bolt 6 to form a first sealing structure, a sealing glue layer 8 is arranged on the outer periphery of the sealing gasket 5, and the two sides of the sealing glue layer 8 abut against the bottom guard plate 4 and the frame 1 respectively to form a second sealing structure, and the bottom guard plate 4, the sealing gasket 5 and the frame 1 are sequentially stacked and connected by the rivet 7 to form a third sealing structure. The triple sealing structure can enhance the sealing performance between the bottom guard plate 4 and the frame 1 in the case of the bottom spray scheme of arranging the exhaust hole 231 on the mounting plate 2.

[0109] By arranging the bolt 6 in sequence on the four edges of the square plate, the rivet 7 includes a rivet nut and a screw rod installed on the rivet nut, the rivet nut sequentially penetrates the bottom guard plate 4, the sealing gasket 5 and the frame 1, and the rivet nut is arranged at the top corner position of the bottom guard plate 4, and in cooperation with the use of the sealing glue layer 8, a triple sealing structure is used for sealing, which can improve the sealing effect of the bottom guard plate 4.

[0110] According to some embodiments of the present application, the present application provides a battery device 100, the battery device 100 comprising a box 10 and a plurality of battery monomers 20, the box 10 comprising a box body 12 and an upper cover 11, the box body 12 comprising a mounting plate 2 and a frame 1, the mounting plate 2 comprising a plate body 21 and a plurality of reinforcing members 22 arranged on the plate body 21, a plurality of rows of exhaust hole groups 23 are arranged on the plate body 21, each row of exhaust hole groups 23 comprises a plurality of exhaust holes 231, each exhaust hole 231 corresponds to an exhaust valve of a battery monomer 20 arranged thereon, the plurality of reinforcing members 22 are arranged along the arrangement direction of the plurality of rows of exhaust hole groups 23, and each reinforcing member 22 is arranged along the arrangement direction of a row of exhaust hole groups 23; the mounting plate 2 is mounted on the frame 1 to form a containing groove 3 for containing the plurality of battery monomers 20, and the upper cover 11 covers the opening of the containing groove 3. As to the specific structural form and material of the mounting plate 2, at least four specific embodiments are included: in the first embodiment, the mounting plate 2 is a profiled plate, the plate body 21 comprises an aluminum plate 211, and the reinforcing member 22 comprises a plurality of fins 221 arranged on the aluminum plate 211, the fins 221 being alternately and spacedly arranged with the exhaust hole groups 23. Specifically, each fin 221 comprises a plurality of sub-fins 2211, the plurality of sub-fins 2211 being arranged in parallel and spacedly, and each sub-fin 2211 is arranged along the arrangement direction of a row of exhaust hole groups 23. In the second embodiment, the plate body 21 is a steel plate 212, and the reinforcing member 22 comprises a plurality of strip steels 222, the plurality of strip steels 222 being welded with the steel plate 212, and the strip steels 222 being alternately and spacedly arranged with the exhaust hole groups 23. Specifically, each strip steel 222 comprises at least two square steels 2221, the at least two square steels 2221 being arranged in parallel and spacedly, each square steel 2221 being arranged along the arrangement direction of a row of exhaust hole groups 23, and each square steel 2221 being arranged close to the adjacent exhaust hole groups 23. In the third embodiment, the plate body 21 is a steel plate 212, and the reinforcing member 22 comprises a reinforcing bracket mounted on the steel plate 212. In the fourth embodiment, the plate body 21 is a steel plate 212, and the reinforcing member 22 comprises a punched groove 223, the punched groove 223 being punched from the steel plate 212, and the punched groove 223 being alternately and spacedly arranged with the exhaust hole groups 23, and each punched groove 223 being arranged along the arrangement direction of a row of exhaust hole groups 23. The mounting plate 2 made of the above-mentioned embodiments can improve the structural strength of the battery device 100.And, the application also adopts a triple sealing structure, specifically, the battery device 100 further comprises a bottom guard plate 4, a pull rivet 7, a bolt 6, a sealing gasket 5 and a sealing glue layer 8, the bottom guard plate 4 is arranged on the side of the mounting plate 2 away from the battery monomer 20; the bottom guard plate 4 is a square plate, the bolt 6 is arranged on the four sides of the square plate in sequence, and sequentially passes through the bottom guard plate 4, the sealing gasket 5 and the frame 1, the pull rivet 7 comprises a pull rivet nut and a screw rod arranged on the pull rivet nut, the pull rivet nut sequentially passes through the bottom guard plate 4, the sealing gasket 5 and the frame 1, and the pull rivet nut is arranged at the top corner position of the bottom guard plate 4, the sealing glue layer 8 is arranged around the outer periphery of the sealing gasket 5, and the two sides of the sealing glue layer 8 are respectively in abutment with the bottom guard plate 4 and the frame 1. Thus, a triple sealing structure is formed, which can improve the sealing performance of the bottom guard plate 4.

[0111] According to some embodiments of the application, the application provides a power utilization device, which comprises a device body and the battery device 100, and the battery device 100 is arranged on the device body. The power utilization device can be a vehicle 1000. Since the power utilization device comprises any one of the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by any one of the above technical solutions, which will not be repeated here.

[0112] The above is only an optional embodiment of the application, and does not limit the patent scope of the application, any equivalent structural transformation made by using the content of the application specification and drawings, or direct / indirect application in other related technical fields under the application concept of the application is included in the patent protection scope of the application.

Claims

1. A battery device, characterized by, The battery device comprises a box body and a plurality of battery cells, the box body comprises a box main body and an upper cover, the box main body comprises: A mounting plate, the mounting plate comprises a plate main body and a reinforcing member arranged on the plate main body, and a plurality of exhaust holes are arranged on the plate main body and are spaced apart from the reinforcing member; A frame, the mounting plate is mounted on the frame, and the mounting plate and the frame jointly define a receiving groove for accommodating a plurality of battery cells, and the upper cover covers the opening of the receiving groove.

2. The battery device of claim 1, wherein A plurality of rows of exhaust hole groups are arranged on the plate main body, each row of exhaust hole groups comprises a plurality of exhaust holes, and a plurality of reinforcing members are arranged along the arrangement direction of the rows of exhaust hole groups, and each reinforcing member extends along the arrangement direction of one row of exhaust holes.

3. The battery device of claim 2, wherein The reinforcing members are alternately and spacedly arranged with the exhaust hole groups.

4. The battery device of claim 3, wherein The mounting plate is a profiled plate, the plate main body comprises an aluminum plate, the reinforcing member comprises a plurality of fins arranged on the aluminum plate, and the fins are alternately and spacedly arranged with the exhaust hole groups.

5. The battery device of claim 4, wherein Each fin comprises a plurality of sub-pieces, and the plurality of sub-pieces are arranged in parallel and spaced apart, and each sub-piece extends along the arrangement direction of one row of exhaust holes.

6. The battery device of claim 3, wherein The plate main body is a steel plate, the reinforcing member comprises a plurality of strip steels, the plurality of strip steels are welded to the steel plate, and the strip steels are alternately and spacedly arranged with the exhaust hole groups.

7. The battery device of claim 6, wherein Each strip steel comprises at least two square steels, the at least two square steels are arranged in parallel and spaced apart, each square steel extends along the arrangement direction of one row of exhaust holes, and each square steel is arranged close to the adjacent exhaust hole group.

8. The battery device of claim 3, wherein The plate main body is a steel plate, the reinforcing member comprises a reinforcing support, and the reinforcing support is mounted on the steel plate.

9. The battery device of claim 3, wherein The plate main body is a steel plate, the reinforcing member comprises a stamping groove, the stamping groove is made of the steel plate by stamping, the stamping groove is alternately and spacedly arranged with the exhaust hole groups, and each stamping groove extends along the arrangement direction of one row of exhaust holes.

10. The battery device according to any one of claims 1 to 9, wherein The reinforcing member is arranged on the side of the plate main body away from the receiving groove.

11. The battery device of any one of claims 1 to 9, wherein, The frame is welded or riveted to the mounting plate.

12. The battery device of any one of claims 1 to 9, wherein, The battery device further comprises a bottom guard plate, a locking member, a sealing gasket, and a sealing adhesive layer, the bottom guard plate is arranged on the side of the mounting plate away from the battery cells; The bottom guard plate, the sealing gasket, and the frame are sequentially stacked and connected by the locking member; The sealing adhesive layer is arranged around the outer periphery of the sealing gasket, and the two sides of the sealing adhesive layer respectively abut against the bottom guard plate and the frame.

13. The battery device of claim 12, wherein, The locking member comprises a bolt and a pull rivet, and the bottom guard plate is a square plate; The bolt is arranged in sequence on the four edges of the bottom guard plate, and sequentially connects the bottom guard plate, the sealing gasket, and the frame; The pull rivet comprises a pull rivet nut and a screw rod mounted on the pull rivet nut, the pull rivet nut sequentially penetrates the bottom guard plate, the sealing gasket, and the frame, and the pull rivet nut is arranged at the top corner position of the bottom guard plate.

14. An electrical device, characterized by The electrical equipment comprises an equipment main body and the battery device of any one of claims 1-13, and the battery device is arranged in the equipment main body.

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