Battery and electric equipment

Abstract

The utility model discloses a battery and electric equipment. The battery comprises a box body, a battery module and a positioning component, and a structural beam is arranged in the box body. The battery module is arranged in the box body. And the positioning component is connected with the structural beam and is used for positioning the battery module. According to the technical scheme provided by the invention, the manufacturing cost of the battery can be reduced.

Description

TECHNICAL FIELD

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

[0002] Energy saving and emission reduction is the key to the sustainable development of the automobile industry. Electric vehicles have become an important part of the sustainable development of the automobile industry due to their energy saving and environmental protection advantages. For electric vehicles, battery technology is an important factor for their development.

[0003] In the development process of battery technology, how to reduce the manufacturing cost of the battery is a technical problem to be solved. SUMMARY

[0004] The present application provides a battery and a power consumption device, which can reduce the manufacturing cost of the battery.

[0005] The present application is achieved by the following technical solutions:

[0006] In a first aspect, the present application provides a battery, comprising: a box body, an internal structure beam of the box body; a battery module, arranged in the box body; a positioning member, connected with the structure beam, used for positioning the battery module.

[0007] According to the battery of the present application, when the specification of the battery module changes, the positioning member can be replaced (based on the battery module after the specification change, the positioning member is redesigned), so that the battery module after the specification change is effectively positioned at a suitable position of the box body. Compared with the scheme of redesigning the size of the box body to avoid the positioning of the battery module in the box body, the cost of the box body can be effectively saved, and the manufacturing cost of the battery is reduced.

[0008] According to some embodiments of the present application, the positioning member is provided with a first positioning part, and the battery module is provided with a first positioning matching part, and the first positioning part cooperates with the first positioning matching part.

[0009] In the above scheme, the first positioning part of the positioning member cooperates with the first positioning matching part of the battery module, so that the positioning member effectively positions the battery module in the box body.

[0010] According to some embodiments of the present application, the first positioning part is a first positioning pin, and the first positioning matching part is a first positioning hole; or, the first positioning part is a first positioning hole, and the first positioning matching part is a first positioning pin.

[0011] In the above scheme, the first positioning pin and the first positioning hole cooperate with each other, which can conveniently and quickly realize the positioning of the battery module and improve the assembly efficiency of the battery.

[0012] According to some embodiments of the present application, the battery module comprises a pair of end plates and a plurality of battery monomers, the plurality of battery monomers are arranged in layers between the pair of end plates, and the first positioning fitting part is arranged on the end plate.

[0013] In the above scheme, the first positioning fitting part is arranged on the end plate, thereby without the need to modify the battery monomers in the battery module, reducing the manufacturing cost of the battery module, and ensuring that the cooperation between the battery module and the positioning member is realized under the condition of low cost.

[0014] According to some embodiments of the present application, the box comprises a bottom wall and a side wall, the side wall is arranged around the bottom wall, and the structural beam is arranged on the bottom wall, and the two ends of the structural beam are connected with the side wall.

[0015] In the above scheme, the structural beam is arranged on the bottom wall and the two ends thereof are connected with the side wall, which can effectively improve the structural strength of the box and make the battery structure stable.

[0016] According to some embodiments of the present application, the structural beam divides the internal space of the box into two chambers, and at least one of the chambers is provided with at least one battery module.

[0017] In the above scheme, on the one hand, the structural beam plays a role in improving the structural strength of the box, and on the other hand, the structural beam reasonably divides the internal space of the box into two chambers to separate the battery modules or separate the battery modules and other devices of the battery (such as a battery management system for detecting the working state of the battery).

[0018] According to some embodiments of the present application, the structural beam divides the internal space of the box into a first chamber and a second chamber, and the first chamber and the second chamber are each provided with at least one battery module.

[0019] In the above scheme, the structural beam divides the internal space of the box into a first chamber and a second chamber, so that a plurality of battery modules are arranged separately to reduce the risk of heat spread (heat spread refers to that when one battery module occurs thermal runaway, it affects the adjacent battery modules) and improve the safety of the battery.

[0020] According to some embodiments of the present application, the positioning member bypasses the structural beam to position the battery module arranged in the first chamber and the battery module arranged in the second chamber.

[0021] In the above scheme, the positioning member bypasses the structural beam to position the battery module in the first chamber and the battery module in the second chamber respectively, so as to ensure that each battery module is in a suitable position of the box.

[0022] According to some embodiments of the present application, the positioning member comprises a first sub-positioning member and a second sub-positioning member which are arranged separately and connected to each other, the first sub-positioning member is used for positioning the battery module arranged in the first cavity, the second sub-positioning member is used for positioning the battery module arranged in the second cavity, and the first sub-positioning member and the second sub-positioning member are both connected to the structural beam.

[0023] In the above scheme, the first sub-positioning member and the second sub-positioning member are arranged separately and used for positioning the battery module arranged in the first cavity and the battery module arranged in the second cavity respectively, so that when the specifications of the battery module change, the first sub-positioning member and the second sub-positioning member can be designed and replaced respectively, thereby reducing the cost of the positioning member.

[0024] According to some embodiments of the present application, the first sub-positioning member and the second sub-positioning member are structurally identical.

[0025] In the above scheme, the first sub-positioning member and the second sub-positioning member are structurally identical, so that the first positioning matching part on the battery module in the first cavity and the second cavity is structurally identical, the manufacturing cost caused by different designs is reduced, and since the structures are identical, the assembly action is consistent, thereby improving the assembly efficiency.

[0026] According to some embodiments of the present application, the structural beam has a top surface facing away from the bottom wall and a first side surface facing the first cavity; the first sub-positioning member comprises a first wall, a second wall and a third wall, the first wall is connected to the top surface, the second wall extends from the first wall to a direction close to the bottom wall and covers at least a part of the first side surface, and the third wall is connected to the second wall; wherein the first positioning part is arranged on the third wall.

[0027] In the above scheme, the first wall is connected to the top surface, and the second wall covers at least a part of the first side surface, so that the first sub-positioning member and the structural beam have a stable connection relationship, thereby ensuring that the first positioning part on the third wall can effectively position the battery module arranged in the first cavity.

[0028] According to some embodiments of the present application, the structural beam has a second side surface facing the second cavity; the second sub-positioning member comprises a fourth wall, a fifth wall and a sixth wall, the fourth wall is connected to the top surface, the fifth wall extends from the fourth wall to a direction close to the bottom wall and covers at least a part of the second side surface, and the sixth wall is connected to the fifth wall; wherein the first positioning part is arranged on the sixth wall.

[0029] In the above scheme, the fourth wall is connected to the top surface, and the fifth wall covers at least a part of the second side surface, so that the second sub-positioning member has a stable connection relationship with the structural beam, and the first positioning part on the sixth wall can effectively position the battery module arranged in the second cavity.

[0030] According to some embodiments of the present application, the first wall and the third wall extend in opposite directions from two ends of the second wall, and the fourth wall and the sixth wall extend in opposite directions from two ends of the fifth wall.

[0031] In the above scheme, the first wall and the third wall extend in opposite directions, i.e., the first wall can be placed on the top surface of the structural beam, and the third wall can be placed on the upper surface or the lower surface of the battery module (the upper surface of the battery module is the surface of the battery module away from the bottom wall, and the lower surface of the battery module is the surface of the battery module facing the bottom wall), so as to effectively position the battery module in the first cavity; similarly, the fourth wall and the sixth wall extend in opposite directions, i.e., the fourth wall can be placed on the top surface of the structural beam, and the sixth wall can be placed on the top surface or the bottom surface of the battery module, so as to effectively position the battery module in the first cavity.

[0032] According to some embodiments of the present application, the battery module has a first surface facing the bottom wall and a second surface away from the bottom wall, and the first positioning part is arranged on the first surface or the second surface.

[0033] In the above scheme, when the first positioning part is arranged on the first surface, the positioning member can be arranged on the structural beam first, so that the third wall and the sixth wall are arranged on the bottom wall, and then the battery module is placed in the box based on the first positioning part until the first positioning part and the first positioning part are matched in place, and the positioning of the battery module is completed. When the first positioning part is arranged on the second surface, the battery module can be placed in the box first, and then the positioning member is arranged on the structural beam. Since there is a gap between the battery module and the box, the position of the battery module can be adjusted so that the first positioning part and the first positioning part are matched with each other, and the positioning is completed.

[0034] According to some embodiments of the present application, the first cavity and the second cavity are arranged along a first direction, each of the battery modules is spaced apart from at least two first positioning parts along a second direction, and the first direction, the second direction, and the thickness direction of the bottom wall are perpendicular to each other.

[0035] In the above scheme, along the second direction, arranging a plurality of first positioning parts can improve the positioning accuracy of the positioning member and the battery module, and ensure that the battery module is in a suitable position in the box.

[0036] According to some embodiments of the present application, the first chamber and the second chamber are arranged along a first direction, the battery module has two third surfaces opposite along a second direction, the first positioning fitting part is arranged on the third surface, and the first direction, the second direction and a thickness direction of the bottom wall are perpendicular to each other.

[0037] In the above scheme, the third surface of the battery module can be an end surface of the battery module, i.e., a surface of the end surface along the stacking direction of the battery monomer. The planes where the third wall and the sixth wall are located can be parallel to the third surface to be positioned and matched with the first positioning fitting part arranged on the third surface.

[0038] According to some embodiments of the present application, the first sub-positioning member and the second sub-positioning member are detachably connected with the structural beam, respectively.

[0039] In the above scheme, since the first sub-positioning member and the second sub-positioning member are in a detachable relationship with the structural beam, the first sub-positioning member and the second sub-positioning member can be conveniently replaced at any time to save the time for replacing the positioning member.

[0040] According to some embodiments of the present application, a second positioning pin is arranged on the top surface, the first wall and the fourth wall are arranged in a stack, a second positioning hole for inserting the second positioning pin is arranged on the first wall, and a third positioning hole for inserting the second positioning pin is arranged on the fourth wall.

[0041] In the above scheme, the second positioning pin on the top surface of the structural beam can be matched with the second positioning hole on the first sub-positioning member and the third positioning hole on the second sub-positioning member, thereby conveniently realizing the detachable assembly of the positioning member and the structural beam. Meanwhile, in some embodiments, the structural beam itself has a positioning pin for positioning and assembling with the vehicle, so the positioning pin can be reasonably used as the second positioning pin to be matched with the positioning member.

[0042] According to some embodiments of the present application, the battery further comprises a partition plate arranged on the bottom wall and perpendicular to the structural beam to divide the first chamber into two first sub-chambers and divide the second chamber into two second sub-chambers.

[0043] In the above scheme, by arranging the partition plate to divide the first chamber into two first sub-chambers and divide the second chamber into two second sub-chambers, the interior of the box body is further divided into four, thereby reasonably isolating multiple battery modules to ensure the safety of each battery module.

[0044] According to some embodiments of the present application, the positioning member is formed with a avoiding groove to avoid the partition plate.

[0045] In the above scheme, the positioning member is provided with an avoiding groove to avoid the partition plate, so that the positioning member can position each battery module arranged in the first sub-chamber and the second sub-chamber in the box.

[0046] In a second aspect, the application further provides a power utilization device, comprising the battery of any one of the first aspect, wherein the battery is used to provide electric energy.

[0047] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following and / or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0048] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the application, and therefore should not be considered as limiting the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0049] Figure 1 Structure schematic diagram of vehicle in some embodiments of the application;

[0050] Figure 2 Perspective view of battery in some embodiments of the application;

[0051] Figure 3 Schematic diagram of box in some embodiments of the application;

[0052] Figure 4 Schematic diagram of battery module in some embodiments of the application;

[0053] Figure 5 Schematic diagram of positioning member in some embodiments of the application;

[0054] Figure 6 Schematic diagram of end plate and battery cell in some embodiments of the application;

[0055] Figure 7 Cross-sectional view of positioning member and structural beam in some embodiments of the application;

[0056] Figure 8 Schematic diagram of first sub-positioning member in some embodiments of the application;

[0057] Figure 9 Schematic diagram of second sub-positioning member in some embodiments of the application;

[0058] Figure 10 Schematic diagram of battery module and first sub-positioning member in some embodiments of the application;

[0059] Figure 11 This is a schematic diagram of the battery module and the first sub-positioning member in other embodiments of this application;

[0060] Figure 12 This is a schematic diagram of the battery module in some other embodiments of this application;

[0061] Figure 13 This is a schematic diagram of the positioning component in some other embodiments of this application.

[0062] Icons: 100-Battery; 10-Box; 11-Bottom wall; 12-Side wall; 13-First chamber; 130-First sub-chamber; 14-Second chamber; 140-Second sub-chamber; 20-Battery module; 21-First positioning mating part; 22-End plate; 23-Battery cell; 220-First surface; 221-Second surface; 30-Positioning component; 31-First positioning part; 32-First sub-positioning component; 320-First Wall; 3200-Second positioning hole; 321-Second wall; 322-Third wall; 33-Second sub-positioning component; 330-Fourth wall; 3300-Third positioning hole; 331-Fifth wall; 332-Sixth wall; 34-Allowing groove; 40-Structural beam; 41-Top surface; 42-First side surface; 43-Second side surface; 44-Second positioning pin; 50-Partition plate; 1000-Vehicle; 200-Controller; 300-Motor. Detailed Implementation

[0063] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0064] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0065] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0066] Reference to“an embodiment” herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase“in an embodiment” in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily all directed to the same embodiment, or to a common embodiment.

[0067] In the description of the embodiments of the present application, the term“and / or” is merely an association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A existing, A and B existing, and B existing. In addition, the character“ / ” herein generally represents that the front and rear associated objects are in an“or” relationship.

[0068] In the description of the embodiments of the present application, the term“a plurality of” refers to two or more (including two), and similarly, “a plurality of groups” refers to two or more groups (including two groups), and “a plurality of pieces” refers to two or more pieces (including two pieces).

[0069] In the description of the embodiments of the present application, the technical terms“center”,“longitudinal”,“transverse”,“length”,“width”,“thickness”,“upper”,“lower”,“front”,“rear”,“left”,“right”,“vertical”,“horizontal”,“top”,“bottom”,“inner”,“outer”,“clockwise”,“counterclockwise”,“axial”,“radial”,“circumferential” and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0070] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms“mounting”,“connection”,“connection”,“fixing” and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0071] In the present application, the battery monomer can include a lithium ion secondary battery, a lithium ion primary battery, a lithium-sulfur battery, a sodium lithium ion battery, a sodium ion battery or a magnesium ion battery, etc., and the embodiments of the present application are not limited thereto. The battery monomer can be in the shape of a rectangular parallelepiped or other shapes, and the embodiments of the present application are described by taking the battery monomer as a rectangular parallelepiped.

[0072] A battery cell includes an electrode assembly and an electrolyte, the electrode assembly is composed of a positive electrode sheet, a negative electrode sheet and a separator. The battery cell mainly relies on the movement of metal ions between the positive electrode sheet and the negative electrode sheet to work. The positive electrode sheet includes a positive electrode current collector and a positive electrode active material layer, the positive electrode active material layer is coated on the surface of the positive electrode current collector, the positive electrode current collector without the positive electrode active material layer protrudes from the positive electrode current collector with the positive electrode active material layer, and the positive electrode current collector without the positive electrode active material layer serves as a positive electrode tab. Taking a lithium ion battery as an example, the material of the positive electrode current collector can be aluminum, and the positive electrode active material can be lithium cobaltate, lithium iron phosphate, ternary lithium or lithium manganate, etc. The negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer, the negative electrode active material layer is coated on the surface of the negative electrode current collector, the negative electrode current collector without the negative electrode active material layer protrudes from the negative electrode current collector with the negative electrode active material layer, and the negative electrode current collector without the negative electrode active material layer serves as a negative electrode tab. The material of the negative electrode current collector can be copper, and the negative electrode active material can be carbon or silicon, etc. In order to ensure that the fuse does not occur when passing a large current, the number of positive electrode tabs is multiple and stacked together, and the number of negative electrode tabs is multiple and stacked together. The material of the separator can be PP (polypropylene) or PE (polyethylene) or the like.

[0073] The battery module mentioned in the embodiments of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity. The battery module also includes end plates, the end plates are arranged in pairs, and a plurality of stacked battery cells are located between the two end plates to be fastened by the two end plates.

[0074] The battery mentioned in the embodiments of the present application refers to a single physical module including one or more battery modules to provide higher voltage and capacity. In the prior art, the battery also includes a box, the box is provided with a structural beam, one or more battery modules are arranged inside the box and are fixed in the box based on the structural beam, for example, the structural beam is provided with a screw hole / bolt, the battery module is positioned and fixed on the structural beam through the bolt / screw hole, and the box protects the battery module, i.e. the battery cell, from external objects. Generally, in the assembly of the battery, there is a gap between the battery module and the box, and the size range of the gap needs to meet the design requirements, so that the battery module is in the appropriate position of the box to meet the heat dissipation of the battery module and the assembly of other structures of the battery (such as a water cooling plate, etc.).

[0075] The development of battery technology needs to consider various design factors, such as performance parameters such as energy density, cycle life, discharge capacity, and charge / discharge rate, and the manufacturing cost of the battery. The inventors found that the box and the battery module are separately provided (for example, the box is provided by one supplier, and the battery module is provided by another supplier), but as the demand for battery capacity changes, the specifications of the battery module will change accordingly (for example, the number of battery monomers in the battery module changes, or the size of the battery monomer changes), but the position of the screw hole / bolt on the structural beam of the box is fixed, causing the battery module after the specification change to be unable to cooperate with the structural beam, resulting in the battery module being unable to be positioned. Therefore, in order to enable the battery monomer after the specification change to be positioned at the appropriate position, the box is usually redesigned, and the box is manufactured by re-opening the mold, causing the manufacturing period of the battery to be prolonged, and the manufacturing cost of the battery is increased.

[0076] Therefore, in view of the frequent changes in the specifications of the battery module, in order to avoid redesigning the box and re-opening the mold for manufacturing the box, and to reduce the manufacturing cost of the battery, the inventors provide a battery, which includes a positioning member connected to a structural beam, and the battery module is positioned in the box through the positioning member. Wherein, the box, the positioning member and the battery module are separately provided, when the specifications of the battery module change, only the low-cost positioning member needs to be replaced, and the positioning of the battery module is realized without the need to redesign the entire box, thereby effectively reducing the manufacturing cost of the battery.

[0077] The technical solutions described in the embodiments of the present application are applicable to batteries and electric equipment using batteries.

[0078] The electric equipment can be a vehicle, a mobile phone, a portable device, a notebook computer, a ship, a spacecraft, an electric toy, and an electric tool, etc. The vehicle can be a new energy vehicle, which can be a pure electric vehicle, a hybrid electric vehicle, or an extended range vehicle, etc. The spacecraft includes an airplane, a rocket, a space shuttle, and a spacecraft, etc. The electric toy includes a fixed or mobile electric toy, for example, a game console, an electric car toy, an electric ship toy, and an electric plane toy, etc. The electric tool includes a metal cutting electric tool, a grinding electric tool, an assembly electric tool, and a railway electric tool, for example, an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an impact drill, a concrete vibrator, and an electric planer, etc. The embodiments of the present application do not specially limit the above electric equipment.

[0079] The following embodiments take the vehicle 1000 as an example for convenience of description.

[0080] Figure 1 The following embodiments take the vehicle 1000 as an example for convenience of description.

[0081] The inside of the vehicle 1000 can be provided with the controller 200, the motor 300 and the battery 100, the controller 200 being used to control the battery 100 to supply power to the motor 300. For example, the battery 100 can be provided at the bottom or the front or the rear of the vehicle 1000. The battery 100 can be used to supply power to the vehicle 1000, for example, the battery 100 can be used as the operating power source of the vehicle 1000, for example, used for the circuit system of the vehicle 1000, for example, used for the starting, navigation and working power demand of the vehicle 1000. In another embodiment of the present application, the battery 100 can not only be used as the operating power source of the vehicle 1000, but also be used as the driving power source of the vehicle 1000, instead of or partially instead of fuel or natural gas to provide driving power for the vehicle 1000.

[0082] According to some embodiments of the present application, please refer to Figure 2 Figure 5 , Figure 2 is a perspective view of the battery 100 in some embodiments of the present application, Figure 3 is a schematic view of the box 10 in some embodiments of the present application, Figure 4 is a schematic view of the battery module 20 in some embodiments of the present application, Figure 5 is a schematic view of the positioning member 30 in some embodiments of the present application.

[0083] The battery 100 comprises the box 10, the battery module 20 and the positioning member 30. The box 10 is internally provided with the structural beam 40. The battery module 20 is arranged in the box 10. The positioning member 30 is connected with the structural beam 40 and used to position the battery module 20.

[0084] The box 10 is a component for protecting the battery module 20 and preventing the battery cell 23 from being affected by external objects. In some embodiments, the box 10 has an opening, and the battery module 20 can be placed in the box 10 through the opening, and then the opening is closed by a cover plate (not shown in the figure). In other embodiments, the box 10 does not have a cover plate, and the box is directly assembled on the chassis of the vehicle, and the opening of the box 10 is closed by the chassis of the vehicle. The structural beam 40 is arranged inside the box 10, which can improve the structural strength of the box 10 and serve as a positioning reference between the box 10 and the battery module 20.

[0085] The positioning member 30 is arranged on the structural beam 40 and used to position the battery module 20, so that the battery module 20 is positioned in the box 10 with the structural beam 40 as the reference, so that the battery module 20 is in the appropriate position. The design cost, mold cost and manufacturing cost of the positioning member 30 are lower than those of the box 10.

[0086] In actual production, the box 10 and the positioning member 30 are separately provided, and the positioning member 30 is connected with the structural beam 40 when the battery 100 is assembled, thereby meeting the condition of redesigning the positioning member 30.

[0087] In the above scheme, when the specification of the battery module 20 changes, the box 10 does not need to be redesigned, and based on the specification of the battery module 20 and the size of the box 10, in combination with the appropriate position of the battery module 20 relative to the box 10, only the positioning member 30 is redesigned, and the redesigned positioning member 30 can effectively position the battery module 20 in the box 10, thereby meeting the dynamic assembly condition due to the change of the specification of the battery module 20 at low cost.

[0088] According to some embodiments of the present application, the positioning member 30 is provided with a first positioning part 31, and the battery module 20 is provided with a first positioning matching part 21, and the first positioning part 31 matches with the first positioning matching part 21.

[0089] The first positioning part 31 is a part provided on the positioning member 30 for positioning matching with the first positioning matching part 21. The first positioning matching part 21 is a part provided on the battery module 20 for positioning matching with the first positioning part 31.

[0090] Positioning matching means that when the first positioning part 31 and the first positioning matching part 21 match with each other, the battery module 20 can be positioned and fixed by the positioning member 30 to be in a stable state in the box 10, and the position of the battery module 20 in the box 10 is a designed appropriate position.

[0091] In some embodiments, when the specification of the battery module 20 changes, the redesign of the positioning member 30 can mean redesigning the position of the first positioning part 31 in the positioning member 30.

[0092] In the above scheme, the first positioning part 31 of the positioning member 30 matches with the first positioning matching part 21 of the battery module 20, so that the positioning member 30 effectively positions the battery module 20 in the box 10.

[0093] According to some embodiments of the present application, the first positioning part 31 is a first positioning pin, and the first positioning matching part 21 is a first positioning hole; or, the first positioning part 31 is a first positioning hole, and the first positioning matching part 21 is a first positioning pin.

[0094] In some embodiments, referring to Figure 4 and Figure 5In some embodiments, the first positioning matching part 21 is a first positioning hole, and the first positioning part 31 is a first positioning pin. Through the cooperation of the pin and the hole, the positioning of the battery module 20 can be quickly realized. In other embodiments, the first positioning matching part 21 can also be a first positioning pin, and the first positioning part 31 can also be a first positioning hole.

[0095] It should be noted that, in some embodiments, the hole diameter of the first positioning hole can be greater than the pin diameter of the first positioning pin (for example, the hole diameter of the first positioning hole is 8 mm, and the pin diameter of the first positioning pin is 7.8 mm), so that the first positioning pin can be quickly inserted into the first positioning hole. The shape of the first positioning hole is not limited in the present application, which can be circular, long strip-shaped or square, etc., as long as the first positioning pin can be inserted and positioned.

[0096] In the above scheme, through the cooperation of the first positioning pin and the first positioning hole, the positioning of the battery module 20 can be conveniently and quickly realized, and the assembly efficiency of the battery 100 is improved.

[0097] In other embodiments, the first positioning matching part 21 and the first positioning part 31 can be a bolt and nut structure or a bolt and hole structure.

[0098] According to some embodiments of the present application, please refer to Figure 6 , Figure 6 FIG. 2 is a schematic view of an end plate 22 and a battery cell 23 in some embodiments of the present application. The battery module 20 includes a pair of end plates 22 and a plurality of battery cells 23. The plurality of battery cells 23 are stacked between the pair of end plates 22, and the first positioning matching part 21 is arranged on the end plate 22.

[0099] As shown in FIG. 2, along the stacking direction of the plurality of battery cells 23, the two end plates 22 are respectively located at the two ends of the plurality of battery cells 23. Figure 6

[0100] In some embodiments, the end plate 22 can be made of aluminum or other metal materials or plastic materials, which is a structural part for fastening the battery cell 23, and has low material cost and low manufacturing cost.

[0101] Compared with the scheme of arranging the first positioning matching part 21 on the battery cell 23, arranging the first positioning matching part 21 on the end plate 22 can effectively reduce the manufacturing cost and avoid the scheme of being unable to open the first positioning hole on the battery cell 23.

[0102] In some embodiments, when the first positioning matching part 21 is arranged on the end plate 22, and the first positioning matching part 21 is a first positioning hole, the first positioning hole can penetrate through the end plate 22.

[0103] ​In the above scheme, the first positioning fitting part 21 is arranged on the end plate 22, and thus the battery monomer 23 in the battery module 20 does not need to be modified, the manufacturing cost of the battery module 20 is reduced, and the cooperation of the battery module 20 and the positioning member 30 is realized under the condition of low cost.

[0104] In other embodiments, the first positioning fitting part 21 can be arranged on other parts of the battery module 20, for example, on the battery monomer 23 of the battery module 20. In some embodiments, the two end plates 22 of the battery module 20 are connected by a side plate, that is, a side plate is arranged on the side of the plurality of battery monomers 23, and the side plate connects the two end plates 22 to realize the tensioning of the end plate 22. The first positioning fitting part 21 can also be arranged on the side plate.

[0105] According to some embodiments of the present application, please refer to Figure 3 The box 10 includes a bottom wall 11 and a side wall 12, the side wall 12 is arranged around the bottom wall 11, and the structural beam 40 is arranged on the bottom wall 11, and the two ends of the structural beam 40 are connected with the side wall 12.

[0106] In some embodiments, the box 10 is a square box 10, the bottom wall 11 is a square plate, and the side wall 12 is arranged around the four sides of the bottom wall 11. The structural beam 40 is a plate, the lower surface of the structural beam 40 is arranged on the bottom wall 11, and the opposite ends in the length direction of the structural beam 40 are respectively connected with the corresponding side wall 12.

[0107] In the above scheme, the structural beam 40 is arranged on the bottom wall 11 and the two ends thereof are connected with the side wall 12, which can effectively improve the structural strength of the box 10 and make the battery 100 structure stable.

[0108] According to other embodiments of the present application, the structural beam 40 divides the internal space of the box 10 into two chambers, and at least one chamber is provided with at least one battery module 20.

[0109] The structural beam 40 is located inside the box and separates the internal space of the box 10 into two chambers, one of which can be provided with at least one battery module 20, i.e., one, two or more battery modules 20. In some embodiments, the other chamber can be provided with one, two or more battery modules 20, which are separated by the structural beam 40, so as to effectively prevent heat spread and ensure the safety of the battery modules 20 in the respective chambers; or in other embodiments, the other chamber can be provided with other functional components of the battery 100, such as a battery management system for detecting the working state of the battery modules 20 in the battery 100, so as to separate the battery modules 20 and the other functional components; or in other embodiments, the other chamber can be used as a buffer chamber, i.e., without battery modules 20 and other functional components, and is used as a chamber for buffering external force impact.

[0110] According to some embodiments of the present application, in combination with Figure 2 and Figure 3 , the structural beam 40 separates the internal space of the box 10 into a first chamber 13 and a second chamber 14, and the first chamber 13 and the second chamber 14 are each provided with at least one battery module 20.

[0111] In the thickness direction of the structural beam 40, the structural beam 40 separates the internal space of the box 10 into a first chamber 13 and a second chamber 14 that are isolated from each other. The first chamber 13 and the second chamber 14 are each provided with a battery module 20. The number of battery modules 20 in the first chamber 13 and the second chamber 14 can be the same or different, for example, in some embodiments, the number of battery modules 20 in the first chamber 13 and the second chamber 14 can be two, and in other embodiments, the number of battery modules 20 in the first chamber 13 is one and the number of battery modules 20 in the second chamber 14 is two.

[0112] In the above scheme, the structural beam 40 is arranged at the bottom wall 11 and connected to the side wall 12 at both ends, which can effectively improve the structural strength of the box 10 and make the battery 100 structurally stable. At the same time, the structural beam 40 separates the internal space of the box 10 into a first chamber 13 and a second chamber 14, so that multiple battery modules 20 are arranged separately to reduce the risk of heat spread (heat spread refers to the influence of adjacent battery modules 20 when one of the battery modules 20 experiences thermal runaway) and improve the safety of the battery 100.

[0113] According to some embodiments of the present application, in combination with Figure 2 and Figure 7 , Figure 7 is a sectional view of the positioning member 30 and the structural beam 40 in some embodiments of the present application.

[0114] The positioning member 30 bypasses the structural beam 40 to position the battery modules 20 arranged in the first chamber 13 and the battery modules 20 arranged in the second chamber 14.

[0115] Since the battery modules 20 are arranged on both sides of the structural beam 40 and the battery modules 20 arranged on both sides of the structural beam 40 are isolated from each other by the structural beam 40, the positioning member 30 can be arranged to bypass the structural beam 40 to be able to position the battery modules 20 in the first chamber 13 and the second chamber 14.

[0116] The positioning member 30 bypasses the structural beam 40 to position the battery modules 20 arranged in the first chamber 13 and the battery modules 20 arranged in the second chamber 14.

[0117] In the above scheme, the positioning member 30 bypasses the structural beam 40 to position the battery modules 20 in the first chamber 13 and the battery modules 20 in the second chamber 14 respectively, ensuring that each battery module 20 is in the appropriate position in the box 10.

[0118] It should be noted that in other embodiments, the positioning member 30 can not bypass the structural beam 40, for example, directly passing through the structural beam 40 to position the battery modules 20 in the first chamber 13 and the second chamber 14.

[0119] According to some embodiments of the present application, please refer to 2、 Figure 5 、 Figure 8 and Figure 9 , Figure 8 is a schematic view of the first sub-positioning member 32 in some embodiments of the present application, Figure 9 is a schematic view of the second sub-positioning member 33 in some embodiments of the present application.

[0120] The positioning member 30 includes a first sub-positioning member 32 and a second sub-positioning member 33 arranged separately and connected to each other, the first sub-positioning member 32 is used to position the battery modules 20 arranged in the first chamber 13, the second sub-positioning member 33 is used to position the battery modules 20 arranged in the second chamber 14, and the first sub-positioning member 32 and the second sub-positioning member 33 are connected to the structural beam 40.

[0121] "arranged separately and connected to each other" can mean that when the positioning member 30 is not assembled on the structural beam 40, the first sub-positioning member 32 and the second sub-positioning member 33 are two independent components, when the battery modules 20 in the box 10 need to be positioned, the first sub-positioning member 32 and the second sub-positioning member 33 will position the battery modules 20 in the first chamber 13 and the second chamber 14 respectively, and the first sub-positioning member 32 and the second sub-positioning member 33 can be connected to the structural beam 40.

[0122] The first sub-positioning member 32 and the second sub-positioning member 33 are independent of each other and do not interfere with each other. When the specifications of the battery modules 20 arranged in the first chamber 13 change, the first sub-positioning member 32 can be redesigned without redesigning the second sub-positioning member 33. When the specifications of the battery modules 20 arranged in the second chamber 14 change, the second sub-positioning member 33 can be redesigned without redesigning the first sub-positioning member 32.

[0123] In the above scheme, the first sub-positioning member 32 and the second sub-positioning member 33 are arranged independently and are used to position the battery modules 20 arranged in the first chamber 13 and the second chamber 14, respectively. When the specifications of the battery modules 20 change, the first sub-positioning member 32 and the second sub-positioning member 33 can be designed and replaced separately, thereby reducing the cost of the positioning member 30.

[0124] According to some embodiments of the present application, the first sub-positioning member 32 and the second sub-positioning member 33 have the same structure.

[0125] The first sub-positioning member 32 and the second sub-positioning member 33 have the same structure. The first positioning parts 21 of the battery modules 20 in the first chamber 13 and the second chamber 14 are at the same position, for example, on the upper surface, the lower surface, or the outer side surface (the outer side surface refers to the end surface of the battery module 20 in the stacking direction of the battery monomer 23) of the battery module 20. Therefore, the first positioning parts 31 of the first sub-positioning member 32 and the second sub-positioning member 33 are at the same position, and the same assembly action can be used to position the upper surface, the lower surface, or the outer side surface of the battery module 20.

[0126] For example, when the first positioning parts 21 of the battery modules 20 in the first chamber 13 and the second chamber 14 are on the upper surface of the battery module 20, the assembly action can be as follows: first, place the battery modules 20 in the first chamber 13 and the second chamber 14, respectively, and then assemble the first sub-positioning member 32 and the second sub-positioning member 33 to the structural beam 40, and then position them on the upper surface of the battery module 20.

[0127] Conversely, the first sub-positioning member 32 and the second sub-positioning member 33 can also have different structures, for example, in some embodiments, when the first positioning matching part 21 of the battery module 20 at the first chamber 13 is at the upper surface of the battery module 20, and the first positioning matching part 21 of the battery module 20 at the second chamber 14 is at the lower surface of the battery module 20, the first sub-positioning member 32 and the second sub-positioning member 33 have different structures, and the assembly action can be: the first chamber 13 can first place the battery module 20, and then the first sub-positioning member 32 is assembled to the structural beam 40, so as to be in positioning matching with the battery module 20 in the first chamber 13; the second chamber 14 can first set the second sub-positioning member 33, the second sub-positioning member 33 is assembled to the structural beam 40, and then the battery module 20 is placed into the second chamber 14. Since there is a gap between the battery module 20 and the box 10, the position of the battery module 20 can be adjusted, so that the battery module 20 and the second sub-positioning member 33 are in positioning matching.

[0128] In the above scheme, the first sub-positioning member 32 and the second sub-positioning member 33 have the same structure, so that the first positioning matching part 21 on the battery module 20 in the first chamber 13 and the second chamber 14 has the same structure, which reduces the manufacturing cost caused by different designs, and since the structures are the same, the assembly action is consistent, which improves the assembly efficiency.

[0129] According to some embodiments of the present application, referring to Figure 3 in combination with Figure 7 and Figure 8 , the structural beam 40 has a top surface 41 facing away from the bottom wall 11 and a first side surface 42 facing the first chamber 13. The first sub-positioning member 32 includes a first wall 320, a second wall 321 and a third wall 322, the first wall 320 is connected to the top surface 41, the second wall 321 extends from the first wall 320 to the direction close to the bottom wall 11 and covers at least a part of the first side surface 42, and the third wall 322 is connected to the second wall 321; wherein the third wall 322 is provided with the first positioning part 31.

[0130] The top surface 41 of the structural beam 40 is the part connected to the first wall 320 of the first sub-positioning member 32. The first side surface 42 of the structural beam 40 is the part facing the first chamber 13, and at least a part of the first side surface 42 is covered by the second wall 321 of the first sub-positioning member 32. Referring to Figure 8 , the first wall 320 and the second wall 321 can be perpendicular to each other, so as to be respectively covered on the top surface 41 and the first side surface 42. “Covering at least a part of the first side surface 42” can mean that the second wall 321 can cover at least a part or all of the first side surface 42, so that the third wall 322 can extend into the first chamber 13, and the first positioning part 31 on the third wall 322 can be in positioning matching with the first positioning matching part 21 of the battery module 20 in the first chamber 13.

[0131] In the above solution, the first wall 320 is connected to the top surface 41, and the second wall 321 covers at least part of the first side surface 42, so that the first sub-positioning component 32 has a stable connection relationship with the structural beam 40, to ensure that the first positioning part 31 on the third wall 322 can effectively position the battery module 20 arranged in the first cavity 13.

[0132] According to some embodiments of the present application, referring to Figure 3 in combination with Figure 7 and Figure 9 , the structural beam 40 has a second side surface 43 facing the second cavity 14; the second sub-positioning component 33 includes a fourth wall 330, a fifth wall 331 and a sixth wall 332, the fourth wall 330 is connected to the top surface 41, the fifth wall 331 extends from the fourth wall 330 to the direction close to the bottom wall 11 and covers at least part of the second side surface 43, and the sixth wall 332 is connected to the fifth wall 331; wherein the sixth wall 332 is provided with the first positioning part 31.

[0133] The second side surface 43 of the structural beam 40 is a part facing the second cavity 14, and at least part of the second side surface 43 is covered by the fifth wall 331 of the second sub-positioning component 33. Referring to Figure 9 , the fourth wall 330 and the fifth wall 331 can be perpendicular to each other to cover the top surface 41 and the second side surface 43 respectively. "Covering at least part of the second side surface 43" can mean that the fifth wall 331 can cover at least part or all of the second side surface 43, so that the sixth wall 332 can extend into the second cavity 14, and the first positioning part 31 can be positioned and matched with the first positioning matching part 21 of the battery module 20 in the second cavity 14.

[0134] In the above solution, the fourth wall 330 is connected to the top surface 41, and the fifth wall 331 covers at least part of the second side surface 43, so that the second sub-positioning component 33 has a stable connection relationship with the structural beam 40, to ensure that the first positioning part 31 on the sixth wall 332 can effectively position the battery module 20 arranged in the second cavity 14.

[0135] According to some embodiments of the present application, please refer to Figure 7 , Figure 8 and Figure 9 . The first wall 320 and the third wall 322 extend in opposite directions from the two ends of the second wall 321, and the fourth wall 330 and the sixth wall 332 extend in opposite directions from the two ends of the fifth wall 331.

[0136] As Figure 8 , the extension directions of the first wall 320 and the third wall 322 are opposite to each other, and the first wall 320 and the third wall 322 can both be parallel to the top surface 41. Referring toFigure 9 The fourth wall 330 and the sixth wall 332 extend in opposite directions, and each of the fourth wall 330 and the sixth wall 332 can be parallel to the top surface 41.

[0137] Since the third wall 322 and the sixth wall 332 can be parallel to the top surface 41, the first positioning part 31 on the third wall 322 and the first positioning part 31 on the sixth wall 332 can be positioned and matched with the first positioning matching part 21 on the surface of the battery module 20 which is parallel to the top surface 41.

[0138] In the above scheme, the first wall 320 and the third wall 322 extend in opposite directions, that is, the first wall 320 can be placed on the top surface 41 of the structural beam 40, and the third wall 322 can be placed on the upper surface or the lower surface of the battery module 20 (the upper surface of the battery module 20 is the surface of the battery module 20 facing away from the bottom wall 11, and the lower surface of the battery module 20 is the surface of the battery module 20 facing the bottom wall 11), so as to effectively position the battery module 20 in the first cavity 13; similarly, the fourth wall 330 and the sixth wall 332 extend in opposite directions, that is, the fourth wall 330 can be placed on the top surface 41 of the structural beam 40, and the sixth wall 332 can be placed on the top surface 41 or the bottom surface of the battery module 20, so as to effectively position the battery module 20 in the first cavity 13.

[0139] According to some embodiments of the present application, the battery module 20 has a first surface 220 facing the bottom wall 11 and a second surface 221 facing away from the bottom wall 11, and the first positioning matching part 21 is arranged on the first surface 220 or the second surface 221.

[0140] The first surface 220 can be the lower surface of the battery module 20, and the second surface 221 can be the upper surface of the battery module 20. In some embodiments, the first surface 220 can be the lower surface of the end plate 22 of the battery module 20, and the second surface 221 can be the upper surface of the end plate 22 of the battery module 20. In some embodiments, when the first positioning matching part 21 is a first positioning hole, the first positioning hole can pass through the first surface 220 and the second surface 221.

[0141] In the above scheme, referring to Figure 10 , Figure 10 is a schematic view of the battery module 20 and the first sub-positioning member 32 in some embodiments of the present application. When the first positioning matching part 21 is arranged on the second surface 221, the battery module 20 can be placed in the box first, and then the positioning member 30 is arranged on the structural beam 40. Since there is a gap between the battery module 20 and the box 10, the position of the battery module 20 can be adjusted so that the first positioning part 31 and the first positioning matching part 21 are matched with each other, and the positioning is completed. Referring to Figure 10If the specification of the battery module 20 changes, the position of the first positioning fitting part 21 will change, and the first sub-positioning member 32 and the second sub-positioning member 33 of the positioning member 30 are redesigned and manufactured. The redesigning manner can be adjusting the position of the first positioning part 31 on the third wall 322 and the sixth wall 332.

[0142] Referring to Figure 11 , Figure 11 FIG. 2 is a schematic view of the battery module 20 and the first sub-positioning member 32 in some embodiments of the present application. When the first positioning fitting part 21 is arranged on the first surface 220, the positioning member 30 can be arranged on the structural beam 40 first, so that the third wall 322 and the sixth wall 332 are arranged on the bottom wall 11, and then the battery module 20 is placed in the box 10 based on the first positioning part 31 until the first positioning fitting part 21 and the first positioning part 31 are matched in place, and the positioning of the battery module 20 is completed. Referring to Figure 11 If the specification of the battery module 20 changes, the position of the first positioning fitting part 21 will change, and the first sub-positioning member 32 and the second sub-positioning member 33 of the positioning member 30 are redesigned and manufactured. The redesigning manner can be adjusting the position of the first positioning part 31 on the third wall 322 and the sixth wall 332.

[0143] According to some embodiments of the present application, the first chamber 13 and the second chamber 14 are arranged along a first direction x, and each battery module 20 is spaced apart from at least two first positioning fitting parts 21 along a second direction y, and the first direction x, the second direction y and the thickness direction of the bottom wall 11 are perpendicular to each other.

[0144] The first direction x can be the thickness direction of the structural beam 40, and in the present embodiment, the first direction x can also be the width direction of the box 10. When the first direction x is the width direction of the box 10, the second direction y can be the length direction of the box 10.

[0145] Referring to Figure 4 Each battery module 20 is provided with at least two first positioning fitting parts 21, that is, the positioning member 30 has a first positioning part 31 corresponding to the number of the first positioning fitting parts 21, so as to ensure the effective positioning of each battery module 20.

[0146] In the above scheme, along the second direction y, the plurality of first positioning fitting parts 21 can improve the positioning accuracy of the positioning member 30 and the battery module 20, and ensure that the battery module 20 is in a suitable position in the box 10.

[0147] According to some embodiments of the present application, please refer to Figure 3 , Figure 12 and Figure 13 , Figure 12FIG. 2 is a schematic view of a battery module 20 according to some embodiments of the present application. Figure 13 FIG. 3 is a schematic view of a positioning member 30 according to some embodiments of the present application. The first chamber 13 and the second chamber 14 are arranged along a first direction x, the battery module 20 has two opposite third surfaces along a second direction y, and the first positioning fitting part 21 is arranged on the third surface. The first direction x, the second direction y, and the thickness direction of the bottom wall 11 are perpendicular to each other.

[0148] In some embodiments of the present application, the second direction y can be the stacking direction of the plurality of battery monomers 23 in the battery module 20, and the two opposite third surfaces of the battery module 20 can be the outer surfaces of the end plate 22 of the battery module 20.

[0149] When the first positioning fitting part 21 is arranged on the third surface, referring to Figure 13 , the third wall 322 and the sixth wall 332 can be parallel to the end of the battery module 20, so that the first positioning part 31 on the third wall 322 and the sixth wall 332 is positioned and fitted with the first positioning fitting part 21.

[0150] In the above scheme, the third surface of the battery module 20 can be the end surface of the battery module 20, i.e. the surface of the end plate 22. The plane where the third wall 322 and the sixth wall 332 are located can be parallel to the third surface, so as to be positioned and fitted with the first positioning fitting part 21 arranged on the third surface.

[0151] According to some embodiments of the present application, the first sub-positioning member 32 and the second sub-positioning member 33 are respectively detachably connected with the structural beam 40.

[0152] The detachable connection means that the first sub-positioning member 32 and the second sub-positioning member 33 can be conveniently disassembled and assembled on the structural beam 40, so as to facilitate replacement.

[0153] In the above scheme, since the first sub-positioning member 32 and the second sub-positioning member 33 are in a detachable relationship with the structural beam 40, the first sub-positioning member 32 and the second sub-positioning member 33 can be conveniently replaced at any time, so as to save the time for replacing the positioning member 30.

[0154] In other embodiments, the first sub-positioning member 32 and the second sub-positioning member 33 can also be respectively fixedly connected with the structural beam 40, such as welding connection.

[0155] According to some embodiments of the present application, referring to Figure 3 and Figure 5 , the top surface 41 is provided with a second positioning pin 44, the first wall 320 and the fourth wall 330 are stacked, the first wall 320 is provided with a second positioning hole 3200 for inserting the second positioning pin 44, and the fourth wall 330 is provided with a third positioning hole 3300 for inserting the second positioning pin 44.

[0156] The laminating of the first wall 320 and the fourth wall 330 can refer to: first, placing the first wall 320 on the top surface 41 and making the second positioning pin 44 pass through the second positioning hole 3200; then, placing the fourth wall 330 on the top surface 41 and making the second positioning pin 44 pass through the third positioning hole 3300; or first, placing the fourth wall 330 on the top surface 41 and making the second positioning pin 44 pass through the third positioning hole 3300; then, placing the first wall 320 on the top surface 41 and making the second positioning pin 44 pass through the second positioning hole 3200.

[0157] In some embodiments, the hole diameter of the second positioning hole 3200 and the third positioning hole 3300 (e.g., 8 mm) can be greater than the pin diameter of the second positioning pin 44 (e.g., 7.8 mm), so that the second positioning pin 44 can be quickly inserted into the second positioning hole 3200 and the fourth positioning hole. The shape of the second positioning hole 3200 and the third positioning hole 3300 is not limited in the present application, which can be circular, long strip-shaped or square, etc., as long as the second positioning pin 44 can be inserted and positioned.

[0158] In other embodiments, the top surface 41 of the structural beam 40, the first sub-positioning member 32 and the second sub-positioning member 33 can also be detachably connected by bolt connection.

[0159] In the above scheme, the second positioning pin 44 on the top surface 41 of the structural beam 40 can cooperate with the second positioning hole 3200 on the first sub-positioning member 32 and the third positioning hole 3300 on the second sub-positioning member 33, thereby facilitating the detachable assembly of the positioning member 30 and the structural beam 40. Meanwhile, in some embodiments, the structural beam 40 itself has a positioning pin for positioning assembly with the vehicle 1000, so that the positioning pin can be reasonably used as the second positioning pin 44 to cooperate with the positioning member 30.

[0160] According to some embodiments of the present application, referring to Figure 3 The battery 100 further comprises a partition plate 50, which is arranged on the bottom wall 11 and perpendicular to the structural beam 40, so as to divide the first chamber 13 into two first sub-chambers 130 and divide the second chamber 14 into two second sub-chambers 140.

[0161] The partition plate 50 is a component arranged in the box 10, which divides the first chamber 13 into two first sub-chambers 130 and divides the second chamber 14 into two second sub-chambers 140. Figure 3 The middle part of the structural beam 40 can be formed with an opening to accommodate the partition plate 50.

[0162] In the above scheme, the first chamber 13 is divided into two first sub-chambers 130 by the partition 50, and the second chamber 14 is divided into two second sub-chambers 140 by the partition 50, thereby further dividing the interior of the box 10 into four sub-chambers, and reasonably isolating the plurality of battery modules 20 to ensure the safety of each battery module 20.

[0163] In other embodiments, the number of partitions 50 can be multiple, and the multiple partitions 50 can divide the first chamber 13 into multiple first sub-chambers 130 and divide the second chamber 14 into multiple second sub-chambers 140.

[0164] According to some embodiments of the present application, please refer to Figure 3 and Figure 5 The positioning member 30 is formed with a relief groove 34 to avoid the partition 50.

[0165] The first sub-positioning member 32 is formed with a relief groove 34 capable of accommodating part of the partition 50 in the first chamber 13, and the second sub-positioning member 33 is also formed with a relief groove 34 capable of accommodating part of the partition 50 in the second chamber 14.

[0166] In the above scheme, the positioning member 30 is provided with a relief groove 34 to avoid the partition 50, so that the positioning member 30 can position each battery module 20 arranged in the first sub-chamber 130 and the second sub-chamber 140 in the box 10.

[0167] According to some embodiments of the present application, the present application also provides a power utilization device, which comprises the battery 100 described above, and the battery 100 is used to provide electric energy.

[0168] According to some embodiments of the present application, the present application also provides a battery 100, please refer to Figure 2 Figure 10 The battery 100 comprises a box 10, a battery module 20, and a positioning member 30.

[0169] The interior of the box 10 is provided with a structural beam 40 and a partition 50. The structural beam 40 is connected with the bottom wall 11 and the side wall 12 of the box 10 to improve the structural strength of the box 10 and divide the interior space of the box 10 into a first chamber 13 and a second chamber 14. The partition 50 is vertically arranged on the structural beam 40 to divide the first chamber 13 into two first sub-chambers 130 and divide the second chamber 14 into two second sub-chambers 140. The top surface 41 of the structural beam 40 is provided with a second positioning pin 44, which can be used for positioning assembly with the chassis of the vehicle 1000 to realize the positioning of the battery 100 on the vehicle 1000.

[0170] The battery module 20 is arranged in the box body 10, and each of the first sub-chamber 130 and the second sub-chamber 140 is provided with the battery module 20. The battery module 20 comprises a pair of end plates 22 and a plurality of battery monomers 23, the plurality of battery monomers 23 are arranged in layers between the pair of end plates 22, and the first positioning fitting part 21 is arranged on the end plate 22.

[0171] The positioning member 30 is connected with the structural beam 40, and can position the battery module 20 in each of the first sub-chamber 130 and the second sub-chamber 140, so that the battery module 20 is in the appropriate position of the box body 10. The positioning member 30 comprises a first sub-positioning member 32 and a second sub-positioning member 33 which are arranged separately and connected with each other, the first sub-positioning member 32 and the second sub-positioning member 33 are in the form of a sheet, the first sub-positioning member 32 and the second sub-positioning member 33 are respectively provided with a second positioning hole 3200 and a third positioning hole 3300, and the first sub-positioning member 32 and the second sub-positioning member 33 can be arranged in layers on the structural beam 40 and assembled on the structural beam 40 through cooperation of the second positioning hole 3200, the third positioning hole 3300 and the second positioning pin 44.

[0172] After the first sub-positioning member 32 and the second sub-positioning member 33 are assembled on the structural beam 40, they are in the form of a “j” character, the first sub-positioning member 32 is used for positioning the battery module 20 in the first sub-chamber 130, the second sub-positioning member 33 is used for positioning the battery module 20 in the second sub-chamber 140, and the first sub-positioning member 32 and the second sub-positioning member 33 both have a first positioning part 31 which is a first positioning pin.

[0173] The lower surface of the end plate 22 of each battery module 20 can be provided with a plurality of first positioning fitting parts 21 which are first positioning holes. The plurality of first positioning holes are used for corresponding cooperation with a plurality of first positioning pins to realize positioning of the battery module 20 by the positioning member 30. The pin head of the first positioning pin can be designed as an inclined angle surface, and the inclined angle surface can play a guiding role when the battery module 20 is assembled in the box body 10 by falling.

[0174] Since the box body 10, the positioning member 30 and the battery module 20 are separately provided, when the specification of the battery module 20 changes, only the positioning member 30 with lower cost needs to be changed, and the entire box body 10 does not need to be redesigned, so that the cost can be effectively reduced under the condition that the battery module 20 is positioned in the appropriate position of the box body 10.

[0175] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A battery, characterized by, The battery comprises: a box body, an inner portion of the box body being provided with a structural beam; a battery module arranged in the box body; a positioning member connected with the structural beam and used for positioning the battery module; wherein the positioning member is provided with a first positioning portion, the battery module is provided with a first positioning matching portion, the first positioning portion cooperates with the first positioning matching portion, the first positioning portion is a first positioning pin, and the first positioning matching portion is a first positioning hole; or the first positioning portion is a first positioning hole, and the first positioning matching portion is a first positioning pin.

2. The battery according to claim 1, wherein the battery module comprises a pair of end plates and a plurality of battery cells, the plurality of battery cells are arranged in a stack between the pair of end plates, and the first positioning matching portion is arranged on the end plate.

3. The battery according to claim 1, wherein the box body comprises a bottom wall and a side wall, the side wall is arranged around the bottom wall, the structural beam is arranged on the bottom wall, and two ends of the structural beam are connected with the side wall.

4. The battery according to claim 3, wherein the structural beam divides an inner space of the box body into two chambers, and at least one of the chambers is provided with at least one battery module.

5. The battery according to claim 3, wherein the structural beam divides the inner space of the box body into a first chamber and a second chamber, and the first chamber and the second chamber are each provided with at least one battery module.

6. The battery according to claim 5, wherein the positioning member bypasses the structural beam to position the battery module arranged in the first chamber and the battery module arranged in the second chamber.

7. The battery according to claim 6, wherein the positioning member comprises a first sub-positioning member and a second sub-positioning member which are arranged separately and connected with each other, the first sub-positioning member is used for positioning the battery module arranged in the first chamber, the second sub-positioning member is used for positioning the battery module arranged in the second chamber, and the first sub-positioning member and the second sub-positioning member are both connected with the structural beam.

8. The battery according to claim 7, wherein the first sub-positioning member and the second sub-positioning member are of the same structure.

9. The battery according to claim 7, wherein the structural beam has a top surface facing away from the bottom wall and a first side surface facing the first chamber; the first sub-positioning member comprises a first wall, a second wall and a third wall, the first wall is connected with the top surface, the second wall extends from the first wall towards the bottom wall and covers at least a portion of the first side surface, and the third wall is connected with the second wall; wherein the first positioning portion is arranged on the third wall.

10. The battery according to claim 9, wherein the structural beam has a second side surface facing the second chamber; The second sub-positioning member comprises a fourth wall, a fifth wall and a sixth wall, the fourth wall is connected to the top surface, the fifth wall extends from the fourth wall to the direction close to the bottom wall and covers at least a part of the second side surface, and the sixth wall is connected to the fifth wall. The first positioning part is arranged on the sixth wall.

11. The battery of claim 10, wherein The first wall and the third wall extend from both ends of the second wall to opposite directions, and the fourth wall and the sixth wall extend from both ends of the fifth wall to opposite directions.

12. The battery of claim 10, wherein The battery module has a first surface facing the bottom wall and a second surface away from the bottom wall, and the first positioning part is arranged on the first surface or the second surface.

13. The battery of claim 12, wherein The first chamber and the second chamber are arranged along a first direction, and each battery module is spaced apart from at least two first positioning parts along a second direction, and the first direction, the second direction and the thickness direction of the bottom wall are perpendicular to each other.

14. The battery of claim 10, wherein The first chamber and the second chamber are arranged along a first direction, and the battery module has two third surfaces opposite along a second direction, and the first positioning part is arranged on the third surface, and the first direction, the second direction and the thickness direction of the bottom wall are perpendicular to each other.

15. The battery of claim 10, wherein The first sub-positioning member and the second sub-positioning member are respectively detachably connected with the structural beam.

16. The battery of claim 15, wherein The top surface is provided with a second positioning pin, the first wall and the fourth wall are arranged in layers, the first wall is provided with a second positioning hole for the second positioning pin to insert, and the fourth wall is provided with a third positioning hole for the second positioning pin to insert.

17. The battery of any one of claims 5-16, wherein The battery further comprises a partition plate, the partition plate is arranged on the bottom wall and perpendicular to the structural beam, so as to divide the first chamber into two first sub-chambers and divide the second chamber into two second sub-chambers.

18. The battery of claim 17, wherein The positioning member is formed with an avoiding groove to avoid the partition plate.

19. An electrical device, comprising: The battery according to any one of claims 1-18 is used to provide electric energy.

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