Battery device and electric equipment

Abstract

The utility model relates to the technical field of battery production, in particular to a battery device and electric equipment. The battery device comprises a battery single body assembly, a box body and a heat exchange assembly, the battery single body assembly comprises a battery single body unit, the battery single body unit comprises a plurality of battery single bodies, each battery single body comprises a pole assembly, a first surface and a second surface, the first surface and the second surface intersect, and the pole assembly is arranged on the first surface; the box body comprises a first wall, the battery monomers are arranged on the first wall, the battery monomers are arranged on a bearing surface of the first wall, and the first surface and the bearing surface are arranged in an intersecting manner; the heat exchange assembly comprises a first heat exchange plate, the first heat exchange plate is in heat conduction connection with the first surface, and a first notch for avoiding the pole assembly is formed in the first heat exchange plate. According to the embodiment of the invention, the first heat exchange plate can be placed in the space near the first surface, so that the heat dissipation of the battery monomers is realized, the internal space of the battery device is fully utilized, and the volume energy density of the battery device is improved.

Description

TECHNICAL FIELD

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

[0002] This part provides only background information related to the present disclosure, which is not necessarily prior art.

[0003] With the increasing maturity of new energy technology, new energy vehicles and other power consumption equipment have gradually entered the public eye. The main core technology of new energy vehicles lies in the battery device, and the safety and stability of the battery device directly determine the performance of the whole vehicle.

[0004] The battery device usually places a heat exchange plate between the battery monomers to achieve heat exchange of the battery monomers. In general, the heat exchange plate adopts a harmonica tube type structure, which will occupy a large amount of space in the battery device, reducing the volume energy density of the battery device. CONTENT OF THE INVENTION

[0005] In view of the above problems, the present application provides a battery device and a power consumption equipment, which solves the problem of low volume energy density of the battery device in the prior art.

[0006] The first aspect of the embodiments of the present application proposes a battery device, comprising:

[0007] A battery monomer assembly, the battery monomer assembly comprising a battery monomer unit, the battery monomer unit comprising a plurality of battery monomers, the battery monomer comprising a pole assembly and a first surface and a second surface intersectingly arranged, the pole assembly being arranged on the first surface;

[0008] A box body, the box body comprising a first wall, the battery monomer being arranged on the first wall, the battery monomer being arranged on a bearing surface of the first wall, and the first surface being arranged intersectingly with the bearing surface; and

[0009] A heat exchange assembly, the heat exchange assembly comprising a first heat exchange plate, the first heat exchange plate being in heat conduction connection with the first surface, and the first heat exchange plate being provided with a first notch avoiding the pole assembly.

[0010] The embodiments of the present application arrange the first surface of the battery monomer provided with the pole assembly intersectingly with the bearing surface of a part of the box body, and arrange the first heat exchange plate of the heat exchange assembly in heat conduction connection with the first surface, and the first heat exchange plate is provided with a first notch avoiding the pole assembly. Then, the first heat exchange plate can be placed in the space near the first surface to achieve heat dissipation of the battery monomer, and the space inside the battery device is fully utilized, and the volume energy density of the battery device is improved.

[0011] In some embodiments of the present application, the battery monomer unit comprises a first battery monomer group and a second battery monomer group arranged at intervals, the orientations of all battery monomers of the first battery monomer group are the same, the orientations of all battery monomers of the second battery monomer group are the same, and the pole column assemblies of the first battery monomer group and the second battery monomer group are oppositely arranged; the first heat exchange plate is arranged between the first battery monomer group and the second battery monomer group.

[0012] In some embodiments of the present application, the battery monomer unit comprises a first battery monomer group and a second battery monomer group arranged at intervals, the orientations of all battery monomers of the first battery monomer group are the same, the orientations of all battery monomers of the second battery monomer group are the same, and the pole column assemblies of the first battery monomer group and the second battery monomer group are oppositely arranged; the first heat exchange plate is arranged between the first battery monomer group and the second battery monomer group.

[0013] In some embodiments of the present application, the number of battery monomer units is at least two, and adjacent two battery monomer units are arranged at intervals.

[0014] In some embodiments of the present application, the number of battery monomer units is at least two, and adjacent two battery monomer units are arranged at intervals.

[0015] In some embodiments of the present application, the at least two first heat exchange plates are in communication with each other.

[0016] In some embodiments of the present application, the at least two first heat exchange plates are in communication with each other.

[0017] In some embodiments of the present application, the first notch is a rectangular hole or a circular hole, and the shape of the first notch is matched with the shape of the pole column assembly.

[0018] In some embodiments of the present application, the first notch is a rectangular hole or a circular hole, and the shape of the first notch is matched with the shape of the pole column assembly.

[0019] In some embodiments of the present application, the heat exchange assembly further comprises a second heat exchange plate in heat conduction connection with the battery monomer, and the second heat exchange plate and the first heat exchange plate are arranged on opposite sides of the battery monomer, respectively.

[0020] The embodiment of the present application can improve the heat exchange efficiency between the heat exchange assembly and the battery monomer by setting the second heat exchange plate in heat conduction connection with the battery monomer, and setting the second heat exchange plate and the first heat exchange plate on opposite sides of the battery monomer.

[0021] In some embodiments of the present application, the second heat exchange plate and the first heat exchange plate are in communication.

[0022] The embodiment of the present application can simplify the structure of the heat exchange assembly by communicating the second heat exchange plate and the first heat exchange plate, and realize the heat exchange between the first heat exchange plate, the second heat exchange plate and the battery monomer through the circulation of the liquid.

[0023] In some embodiments of the present application, the second heat exchange plate is in the structure of a harmonica tube.

[0024] The embodiment of the present application can effectively improve the cooling efficiency, reduce the volume and weight, adapt to the demand of battery lightweight and miniaturization, and keep the stable working temperature of the battery device when the battery device is running at high power, thereby prolonging the service life of the battery device, by setting the second heat exchange tube in the structure of a harmonica tube, which can make the second heat exchange plate have a larger cooling area and better heat transfer performance.

[0025] In some embodiments of the present application, the heat exchange assembly further comprises a connecting pipe, and the first heat exchange plate and the second heat exchange plate are in communication through the connecting pipe.

[0026] The embodiment of the present application can realize the communication between the first heat exchange plate and the second heat exchange plate, realize the circulation of the liquid in the heat exchange assembly, and thus realize the effect of continuous heat exchange, by setting the connecting pipe and communicating the first heat exchange plate and the second heat exchange plate through the connecting pipe.

[0027] In some embodiments of the present application, the first heat exchange plate comprises at least two continuous bending sections, and the at least two continuous bending sections enclose the first gap.

[0028] The embodiment of the present application can form at least two continuous bending sections by bending the first heat exchange plate through a bending process, so as to make the at least two continuous bending sections enclose the first gap avoiding the pole assembly, and has the characteristics of high production efficiency and low cost, by setting the first heat exchange plate to comprise at least two continuous bending sections, and the at least two continuous bending sections to enclose the first gap.

[0029] In some embodiments of the present application, the first heat exchange plate is provided with a hollowed-out area, and the hollowed-out area forms the first gap.

[0030] The embodiments of this application provide a hollowed-out area on the first heat exchange plate, which forms a first notch. The first notch can be processed on the first heat exchange plate by a hole-cutting process, which allows the first notch to better accommodate the pole assembly.

[0031] A second aspect of the embodiments of this application provides an electrical device that includes a battery device as mentioned in the above embodiments, the battery device being used to supply power to the electrical device.

[0032] The electrical equipment in the embodiments of this application, by using the battery device mentioned in the above embodiments, improves the power consumption performance of the electrical equipment due to the improved performance of the battery device.

[0033] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0034] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0035] Figure 1 This is a schematic diagram of the structure of a battery device provided in some embodiments of this application;

[0036] Figure 2 This is a schematic diagram of the structure of an electrical device provided in some embodiments of this application;

[0037] Figure 3 for Figure 1 A schematic diagram of the internal structure of the battery device shown;

[0038] Figure 4 for Figure 3 The diagram shows a partial enlarged view of the internal structure of the battery device at point A (one terminal assembly is not shown);

[0039] Figure 5 for Figure 3 A schematic diagram of the distribution structure of the heat exchange components of the battery device shown;

[0040] Figure 6 for Figure 3 Another schematic diagram of the internal structure of the battery device shown;

[0041] Figure 7 forFigure 6 A distribution structure diagram of a heat exchange assembly of a battery device.

[0042] Reference signs are as follows:

[0043] 100, battery device; 200, electrical equipment; 300, controller; 400, motor;

[0044] 10, battery cell assembly; 11, battery cell unit; 111, first battery cell group; 112, second battery cell group; 113, battery cell; 1131, first surface; 1132, second surface; 1133, third surface; 1134, pole assembly;

[0045] 20, box body; 21, first wall; 211, bearing surface; 22, upper cover;

[0046] 30, heat exchange assembly; 31, first heat exchange plate; 311, first notch; 32, second heat exchange plate; 33, liquid inlet pipe; 34, liquid outlet pipe; 35, connecting pipe;

[0047] 40, partition plate;

[0048] X-X, first direction;

[0049] Y-Y, second direction. DETAILED DESCRIPTION

[0050] The embodiments of the technical scheme of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0051] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments of the present application, and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0052] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0053] 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 referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. As will be apparent to those of ordinary skill in the art, embodiments described herein can be combined with other embodiments in accordance with the application.

[0054] In the description of the embodiments of the application, the term“and / or” only means an association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character“ / ” herein generally means that the front and rear associated objects are in an“or” relationship.

[0055] In the description of the embodiments of the 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).

[0056] In the description of the embodiments of the 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” and“circumferential” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the embodiments of the application and simplifying the description, and does 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 a limitation on the embodiments of the application.

[0057] In the description of the embodiments of the application, unless otherwise explicitly specified and limited, the technical terms“mounting”,“connection”,“connection” and“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 connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the embodiments of the application can be understood according to the specific circumstances.

[0058] At present, from the development of market situation, the application of battery apparatus is more and more extensive. The battery apparatus is not only applied to the energy storage power supply system of hydropower, thermal power, wind power and solar power station, but also widely applied to electric vehicles such as electric bicycles, electric motorcycles, electric vehicles, electric vehicles, military equipment and aerospace and other fields. With the continuous expansion of the application field of battery apparatus, the demand of its market is also increasing.

[0059] The battery apparatus related to the embodiments of the present application can be used in, but not limited to, electric equipment such as vehicles, ships or aircraft. The battery apparatus can be used to form the battery apparatus of the electric equipment.

[0060] The electric equipment using the battery apparatus as power supply in the embodiments of the present application can be, but not limited to, mobile phones, tablets, notebook computers, electric toys, electric tools, electric cars, electric cars, ships, spacecraft and the like. Among them, the electric toys can include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys and electric plane toys, and the like, and the spacecraft can include aircraft, rockets, space shuttles and spacecraft, and the like.

[0061] It should be understood that the technical solutions described in the embodiments of the present application are not only limited to the above described battery apparatus and electric equipment, but also can be applied to all batteries including the box and the electric equipment using the battery.

[0062] The battery apparatus (Battery Apparatus) 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 (Battery Cell Assembly) can include a plurality of battery cells connected in series, parallel or mixed connection through the busbar component.

[0063] In some embodiments, the battery cell assembly (Battery Cell Assembly) is usually formed by arranging a plurality of battery cells.

[0064] As an example, the battery cell assembly can be a battery module (Battery Module) formed by arranging and fixing a plurality of battery cells into an independent module. As an example, the battery module can be formed by bundling a plurality of battery cells with a cable tie.

[0065] In some embodiments, the battery apparatus can be a battery pack (battery Pack), which includes a box and one or more battery cell assemblies, and the battery cell assemblies are contained in the box.

[0066] As an example, the battery cell assembly can be a battery module, and the battery cell assembly can be accommodated in the case by fixing the battery module in the case.

[0067] As an example, the battery cell assembly can also be accommodated in the case by fixing a plurality of battery cells directly in the case.

[0068] As an example, the case can include a first case and a second case. The first case and the second case are fastened so that an enclosed space is formed inside the case to accommodate the battery cell assembly. Here, enclosed means covered or closed, which can be sealed or unsealed. The first case can be a top cover or a bottom plate.

[0069] As an example, the case can include a top cover, a frame, and a bottom plate. The top cover and the bottom plate are connected to the frame, so that an enclosed space is formed inside the case to accommodate the battery cell assembly.

[0070] In some embodiments, the case can be part of the chassis structure of a vehicle. For example, part of the case can be at least part of the floor of the vehicle, or part of the case can be at least part of the cross beams and longitudinal beams of the vehicle.

[0071] The 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 works by moving metal ions between the positive electrode sheet and the negative electrode sheet. The positive electrode sheet includes a positive electrode current collector and a positive electrode active material layer, and the positive electrode active material layer is coated on the surface of the positive electrode current collector. The current collector without the positive electrode active material layer protrudes from the current collector with the positive electrode active material layer, and the current collector without the positive electrode active material layer is stacked 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, and the negative electrode active material layer is coated on the surface of the negative electrode current collector. The current collector without the negative electrode active material layer protrudes from the current collector with the negative electrode active material layer, and the current collector without the negative electrode active material layer is stacked 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. The material of the separator can be PP (polypropylene) or PE (polyethylene), etc. In addition, the electrode assembly can be a wound structure or a stacked structure, and the embodiments of the present application are not limited thereto.

[0072] The technical solutions described in the embodiments of the present application are applicable to various electric devices using battery cells, such as mobile phones, portable devices, notebook computers, electric vehicles, electric toys, electric tools, vehicles, ships, and spacecraft, etc. For example, the spacecraft includes an airplane, a rocket, a space shuttle, and a spacecraft, etc.

[0073] Battery devices typically place heat exchange plates between individual battery cells to exchange heat between them. These heat exchange plates have large-area contact with the battery cells, and often employ a harmonica-tube structure. Multiple heat exchange plates are typically installed within the battery device. Therefore, this structure occupies a significant amount of space within the device, reducing its volumetric energy density.

[0074] To address this problem, embodiments of this application propose a battery device comprising a battery cell assembly, a housing, and a heat exchange assembly. The battery cell assembly includes a battery cell unit, which in turn includes multiple battery cells. Each battery cell includes an electrode assembly and intersecting first and second surfaces, with the electrode assembly disposed on the first surface. The housing includes a first wall, with the battery cells disposed on a support surface of the first wall, and the first surface intersecting the support surface. The heat exchange assembly includes a first heat exchange plate disposed on the side of the first surface away from the second surface and used for heat exchange with the battery cells. The first heat exchange plate has a first notch to avoid the electrode assembly, thereby utilizing the space near the first surface to dissipate heat from the battery cells, fully utilizing the internal space of the battery device, and improving the volumetric energy density of the battery device.

[0075] The battery device in the embodiments of this application can be used in electrical equipment such as vehicles, or it can be installed in products such as energy storage cabinets as a backup power source.

[0076] The structures in the embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0077] The first aspect of the embodiments of this application provides a battery device 100, such as Figure 1 As shown, the battery device 100 includes a housing 20 and a battery cell assembly 10. The housing 20 includes a first wall 21 and a top cover 22, which together form an accommodating space for placing the battery cell assembly 10. The battery cell assembly 10 has a plurality of battery cells 113. The first wall 21 may be a bottom plate, which is part of the lower housing. The top cover 22 and the bottom plate are arranged opposite to each other, and the lower housing and the top cover 22 are closed and connected.

[0078] like Figures 3 to 7 As shown, the battery device 100 also includes a heat exchange component 30, which is used to heat or cool the battery cell assembly 10 to achieve heat exchange between the heat exchange component 30 and the battery cell assembly 10.

[0079] The battery monomer assembly 10 comprises a battery monomer unit 11, the battery monomer unit 11 comprises a plurality of battery monomers 113, the battery monomer 113 comprises a pole assembly 1134 and a first surface 1131 and a second surface 1132 intersected, the pole assembly 1134 is arranged on the first surface 1131; the battery monomer 113 is arranged on the bearing surface 211 of the first wall 21, and the first surface 1131 is arranged intersected with the bearing surface 211 of the first wall 21, wherein the bearing surface 211 is the inner surface of the first wall 21; the heat exchange assembly 30 comprises a first heat exchange plate 31, the first heat exchange plate 31 is in thermal conductive connection with the first surface 1131, and the first heat exchange plate 31 is provided with a first notch 311 avoiding the pole assembly 1134.

[0080] It should be noted that the first surface 1131 is usually the top cover plate of the battery monomer 113, and the second surface 1132 is the side plate of the battery monomer 113, which comprises four surfaces connected in sequence, and the third surface 1133 is a surface parallel to the first surface 1131. Generally, the battery monomer 113 is normally placed, and the first surface 1131 is arranged towards the direction of the upper cover 22, in the application, the first surface 1131 is arranged towards the side surface of the first wall 21, and the battery monomer 113 is in a lying structure, which can have two states, one is that the battery monomer 113 is in a side-lying state, at this time, the small face of the side surface of the battery monomer 113 is placed on the first wall 21, and the other is that the battery monomer 113 is in a lying state, at this time, the large face of the side surface of the battery monomer 113 is placed on the first wall 21, wherein the area of the large face is larger than that of the small face. The second surface 1132 here is one of the four side surfaces of the battery monomer 113. The bearing surface 211 of the first wall 21 refers to the bottom surface of the first wall 21 for bearing the battery monomer 113.

[0081] The pole assembly 1134 here usually has two, one is a positive pole assembly, and the other is a negative pole assembly, each pole assembly 1134 comprises a pole and a tab, and the first notch 311 here needs to avoid the pole and the tab of one pole assembly 1134. In addition, the first heat exchange plate 31 mentioned here is arranged on the side of the battery monomer 113 provided with the pole assembly 1134, and the first heat exchange plate 31 is provided with the first notch 311 avoiding the pole assembly 1134, so that the heat exchange between the first heat exchange plate 31 and the first surface 1131 can be realized.

[0082] In the embodiments of this application, the first surface 1131 of the battery cell 113 with the terminal assembly 1134 is arranged to intersect with the bearing surface 211 of the first wall 21 of the housing 20, and the first heat exchange plate 31 of the heat exchange assembly 30 is thermally connected to the first surface 1131. The first heat exchange plate 31 is provided with a first notch 311 to avoid the terminal assembly 1134. In this way, the space near the first surface 1131 can be used to dissipate heat from the battery cell 113, making full use of the internal space of the battery device 100 and improving the volumetric energy density of the battery device 100.

[0083] It should be noted that the first heat exchange plate 31 and the first surface 1131 are thermally connected, which means that heat exchange can be carried out between the first heat exchange plate 31 and the first surface 1131, thereby realizing heat exchange between the battery cell 113 and the first heat exchange plate 31.

[0084] In some embodiments of this application, such as Figure 3 As shown, the battery cell unit 11 includes a first battery cell group 111 and a second battery cell group 112 arranged at intervals. All battery cells 113 in the first battery cell group 111 have the same orientation, and all battery cells 113 in the second battery cell group 112 have the same orientation. The terminal assembly 1134 of the first battery cell group 111 and the terminal assembly 1134 of the second battery cell group 112 are arranged with opposite orientations. A first heat exchange plate 31 is disposed between the first battery cell group 111 and the second battery cell group 112.

[0085] exist Figure 3 The first direction in the text refers to the XX direction, which is... Figure 3 The left and right directions in Figure 3 The second direction in the text refers to the YY direction, which is... Figure 3 The up and down directions in the middle.

[0086] The battery cells 113 of the first battery cell group 111 are all oriented to the right, and the battery cells 113 of the second battery cell group 112 are all oriented to the left. This allows the terminal assembly 1134 of the first battery cell group 111 and the terminal assembly 1134 of the second battery cell group 112 to be oriented opposite each other. The first heat exchange plate 31 disposed between the first battery cell group 111 and the second battery cell group 112 can simultaneously exchange heat between the first battery cell group 111 and the second battery cell group 112, thereby improving the space utilization rate inside the battery device 100.

[0087] The embodiment of the present application sets the first battery monomer group 111 and the second battery monomer group 112 at intervals, wherein the orientations of all the battery monomers 113 of the first battery monomer group 111 are the same, the orientations of all the battery monomers 113 of the second battery monomer group 112 are the same, the pole column assemblies 1134 of the first battery monomer group 111 and the pole column assemblies 1134 of the second battery monomer group 112 are oppositely arranged, and the first heat exchange plate 31 is arranged between the first battery monomer group 111 and the second battery monomer group 112. Then, the first heat exchange plate 31 can simultaneously exchange heat for all the battery monomers 113 of the first battery monomer group 111 and all the battery monomers 113 of the second battery monomer group 112, thereby improving the compactness of the battery device 100.

[0088] In some embodiments of the present application, continuing to refer to Figure 3 and Figure 5 , the number of the battery monomer units 11 is at least two, and the adjacent two battery monomer units 11 are arranged at intervals.

[0089] It should be noted that the adjacent two battery monomer units 11 are arranged at intervals, which can be achieved by arranging a partition plate 40 inside the battery device 100, or directly by distance. When the number of the battery monomer units 11 is two, the structure in Figure 3 can be used, and when the number of the battery monomer units 11 is three or more, the same structure can be used to achieve the interval arrangement.

[0090] The embodiment of the present application sets the number of the battery monomer units 11 to be at least two, and the adjacent two battery monomer units 11 are arranged at intervals. Then, the number of the battery monomer units 11 can be selected as needed, so as to adjust the power of the battery device 100.

[0091] In some embodiments of the present application, as shown in Figure 5 , the at least two first heat exchange plates 31 are in communication with each other, wherein the heat exchange assembly 30 further comprises an inlet pipe 33 and an outlet pipe 34, and the flow direction of the liquid is shown by arrows in Figure 5 . After the liquid flows into the inlet pipe 33, it flows through the two first heat exchange plates 31 in turn and flows out of the outlet pipe 34, thereby realizing the flow of the liquid.

[0092] It can be understood that the heat exchange assembly 30 here further comprises a pump body (not shown) for controlling the flow rate of the liquid, which can adopt a common structure and will not be expanded here.

[0093] The embodiment of the present application sets the at least two first heat exchange plates 31 in communication with each other, so that the same heat exchange assembly 30 can simultaneously exchange heat for multiple battery monomer units 11, thereby simplifying the structure of the heat exchange assembly 30 and facilitating installation.

[0094] In some embodiments of the present application, as shown in Figure 4 The first notch 311 is in the shape of a rectangular hole or a circular hole, and the shape of the first notch 311 is matched with the shape of the pole assembly 1134.

[0095] The shape of the pole assembly 1134 can be a circular structure or a rectangular structure, so the first notch here can be a circular hole structure or a rectangular hole structure, so that the pole assembly 1134 can be inserted into the first notch 311 without wasting the extra space in the first notch 311.

[0096] The embodiments of the present application can conveniently insert the pole assembly 1134 into the first notch 311 by making the first notch 311 in the shape of a rectangular hole or a circular hole, and the shape of the first notch 311 is matched with the shape of the pole assembly 1134, thereby facilitating the assembly of the battery device 100, making full use of the space inside the battery device 100, and improving the volume energy density of the battery device 100. In the previous embodiments, the heat exchange assembly 30 exchanges heat with the first surface 1131 of the pole assembly 1134 provided for each battery monomer 113, which can improve the heat exchange effect.

[0097] In order to better improve the heat exchange between the heat exchange assembly 30 and the battery monomer 113, in some embodiments of the present application, as shown in Figure 6 and Figure 7 The heat exchange assembly 30 further comprises a second heat exchange plate 32 in heat conduction connection with the battery monomer 113, and the second heat exchange plate 32 and the first heat exchange plate 31 are respectively arranged on opposite sides of the battery monomer 113.

[0098] It should be noted that the first heat exchange plate 31 and the second heat exchange plate 32 are respectively arranged on the two sides of the battery monomer 113 along the X-X direction, which can simultaneously exchange heat with the two surfaces of the battery monomer 113, thereby improving the heat exchange efficiency of the battery monomer 113. Among them, the first heat exchange plate 31 exchanges heat with the first surface 1131 of the battery monomer 113, and the second heat exchange plate 32 exchanges heat with the third surface 1133 of the battery monomer 113. The third surface 1133 here can be in contact and heat conduction connection with the second heat exchange plate 32.

[0099] The first heat exchange plate 31 and the second heat exchange plate 32 here can be in a non-communicating state, the first heat exchange plate 31 is provided with a special liquid circulation system, and the second heat exchange plate 32 is also provided with another special liquid circulation system, so that the first heat exchange plate 31 and the second heat exchange plate 32 can both realize the function of heat exchange.

[0100] The second heat exchange plate 32 is in heat conduction connection with the battery monomer 113, the second heat exchange plate 32 and the first heat exchange plate 31 are arranged on opposite sides of the battery monomer 113 respectively, heat exchange is performed on the first surface 1131 through the first heat exchange plate 31, and heat exchange is performed on another surface opposite to the first surface 1131 of the battery monomer 113 through the second heat exchange plate 32, so that the heat exchange efficiency between the heat exchange assembly 30 and the battery monomer 113 is improved.

[0101] In some embodiments of the present application, as shown in Figure 5 and Figure 7 , the second heat exchange plate 32 and the first heat exchange plate 31 are in communication.

[0102] Here, the second heat exchange plate 32 and the first heat exchange plate 31 being in communication means that the liquid flows through the second heat exchange plate 32 and the first heat exchange plate 31 in sequence, or the liquid flows through the first heat exchange plate 31 and the second heat exchange plate 32 in sequence, and the second heat exchange plate 32 and the second heat exchange plate 32 adopt a set of liquid circulation system. Figure 5 and Figure 7 , the liquid inlet pipe 33 and the liquid outlet pipe 34 are one, and the liquid realizes flow in the heat exchange assembly 30. Among them, the liquid can be water or other cooling liquid.

[0103] Embodiments of the present application can simplify the structure of the heat exchange assembly 30 by connecting the second heat exchange plate 32 and the first heat exchange plate 31, and realize heat exchange between the first heat exchange plate 31, the second heat exchange plate 32 and the battery monomer 113 through the circulation of the liquid.

[0104] In some embodiments of the present application, the second heat exchange plate 32 is in the structure of a harmonica tube.

[0105] Among them, the inside of the harmonica tube structure has a plurality of microchannels, and the plurality of microchannels extend along the length direction of the second heat exchange plate 32, so that the second heat exchange plate 32 has a larger cooling area.

[0106] Embodiments of the present application can effectively improve the cooling efficiency by setting the second heat exchange tube in the structure of a harmonica tube, the harmonica tube structure can make the second heat exchange plate 32 have a larger cooling area and good heat transfer performance, thereby reducing the volume and weight, adapting to the demand of lightweight and miniaturization of the battery, and the battery device 100 can also maintain stable working temperature when operating at high power, thereby prolonging the service life of the battery device 100.

[0107] In some embodiments of the present application, as shown in Figure 5 and Figure 7 , the heat exchange assembly 30 further comprises a connecting pipe 35, and the first heat exchange plate 31 and the second heat exchange plate 32 are in communication through the connecting pipe 35.

[0108] The connecting pipe 35 can be a circular pipe or a rectangular pipe, etc., and can realize the flow of the liquid in the connecting pipe 35.

[0109] The embodiment of the present application can realize the communication between the first heat exchange plate 31 and the second heat exchange plate 32 by arranging the connecting pipe 35 and connecting the first heat exchange plate 31 and the second heat exchange plate 32 through the connecting pipe 35, and can realize the circulation flow of the liquid in the heat exchange assembly 30, thereby realizing the effect of continuous heat exchange.

[0110] In Figure 5 , the flow direction of the liquid is as shown by the arrow direction in Figure 5 . After the liquid enters from the liquid inlet pipe 33, it first enters the left first heat exchange plate 31, then enters the right first heat exchange plate 31 through the connecting pipe 35, and finally flows out from the liquid outlet pipe 34.

[0111] In Figure 7 , the flow direction of the liquid is as shown by the arrow direction in Figure 7 . After the liquid enters from the liquid inlet pipe 33, it first enters the left second heat exchange plate 32, then enters the left first heat exchange plate 31 through the connecting pipe 35, and then successively passes through the connecting pipe 35, the middle second heat exchange plate 32, the right first heat exchange plate 31, and the right second heat exchange plate 32, and finally flows out from the liquid outlet pipe 34.

[0112] It can be understood that the number of the connecting pipe 35 can be multiple, and when pipeline connection is required, two heat exchange plates can be directly connected, such as the connection of the first heat exchange plate 31 and the second heat exchange plate 32, or the connection of two first heat exchange plates 31, etc.

[0113] It should be pointed out that the first heat exchange plate 31 can be made of aluminum alloy or copper alloy, which has good thermal conductivity. In production, the first heat exchange plate 31 can be manufactured by extrusion process, which has the characteristics of high production efficiency and strong stability. Of course, the first heat exchange plate 31 can also be produced by casting process.

[0114] Optionally, the first heat exchange plate 31 comprises at least two continuous bending sections, and the at least two continuous bending sections enclose the first gap 311.

[0115] The first heat exchange plate 31 is usually in a plate structure, which can form a first gap 311 by being bent three times. At this time, the three bending sections form a first gap 311. When the number of the first gap 311 is multiple, multiple first gaps 311 can be formed by multiple bending.

[0116] The embodiment of the present application can form the first gap 311 by bending the first heat exchange plate 31 into at least two continuous bending sections, so that the at least two continuous bending sections can form the first gap 311 to avoid the pole assembly 1134, and the production efficiency is high and the cost is low.

[0117] In some embodiments of the present application, as shown in Figure 3 and Figure 4 The first heat exchange plate 31 is provided with a hollow region, and the hollow region forms the first gap 311.

[0118] In the present example, the first gap 311 is formed by a hole digging process, and multiple first gaps 311 can be processed at the same time to improve the processing efficiency of the first gap 311.

[0119] The embodiment of the present application is provided with a hollow region on the first heat exchange plate 31, and the hollow region forms the first gap 311, so that the first gap 311 can be processed on the first heat exchange plate 31 by a hole digging process, and the first gap 311 can better accommodate the pole assembly 1134.

[0120] The second aspect of the embodiment of the present application provides a power-using equipment 200, as shown in Figure 2 The power-using equipment 200 includes the battery device 100 mentioned in the above embodiments, and the battery device 100 is used to supply power to the power-using equipment 200.

[0121] The battery device 100 is arranged on the power-using equipment 200, and the battery device 100 can be arranged at the bottom, head or tail of the power-using equipment 200. The battery device 100 can be used to supply power to the power-using equipment 200, for example, the battery device 100 can be used as the operating power supply of the power-using equipment 200. The power-using equipment 200 can further include a controller 300 and a motor 400, and the controller 300 is used to control the battery device 100 to supply power to the motor 400, for example, to meet the working power demand of the power-using equipment 200 during starting, navigation and driving.

[0122] The power-using equipment 200 of the embodiment of the present application uses the battery device 100 mentioned in the above embodiments, and the performance of the battery device 100 is improved, so as to improve the working power performance of the power-using equipment 200.

[0123] The above description is only a summary of the technical solutions of the present application. In order to make the technical means of the present application more clearly understood and implemented according to the content of the description, 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. The first aspect of the embodiments of the present application proposes a battery device 100, which comprises a battery monomer assembly 10, a box 20 and a heat exchange assembly 30. The battery monomer assembly 10 comprises a battery monomer unit 11, the battery monomer unit 11 comprises a plurality of battery monomers 113, the battery monomer 113 comprises a pole assembly 1134 and a first surface 1131 and a second surface 1132 intersected, and the pole assembly 1134 is arranged on the first surface 1131; the box 20 comprises a first wall 21, the battery monomer 113 is arranged on the first wall 21, and the first surface 1131 is arranged intersected with the first wall 21; the heat exchange assembly 30 comprises a first heat exchange plate 31, the first heat exchange plate 31 is in thermal conductive connection with the first surface 1131, and the first heat exchange plate 31 is provided with a first gap 311 avoiding the pole assembly 1134. Further, the battery monomer unit 11 comprises a first battery monomer group 111 and a second battery monomer group 112 arranged at intervals, all the battery monomers 113 of the first battery monomer group 111 have the same orientation, all the battery monomers 113 of the second battery monomer group 112 have the same orientation, and the pole assemblies 1134 of the first battery monomer group 111 and the second battery monomer group 112 are oppositely arranged; the first heat exchange plate 31 is arranged between the first battery monomer group 111 and the second battery monomer group 112. Further, the number of the battery monomer units 11 is at least two, and the adjacent two battery monomer units 11 are arranged at intervals. Further, the first heat exchange plates 31 are in communication with each other. Further, the first gap 311 is a rectangular hole or a circular hole, and the shape of the first gap 311 is matched with the pole assembly 1134. Further, the heat exchange assembly 30 further comprises a second heat exchange plate 32 in thermal conductive connection with the battery monomer 113, and the second heat exchange plate 32 and the first heat exchange plate 31 are arranged on opposite sides of the battery monomer 113 respectively. Further, the second heat exchange plate 32 and the first heat exchange plate 31 are in communication. Further, the second heat exchange plate 32 is in the structure of a harmonica tube. Further, the heat exchange assembly 30 further comprises a connecting pipe 35, and the first heat exchange plate 31 and the second heat exchange plate 32 are in communication through the connecting pipe 35. Further, the first heat exchange plate 31 comprises at least two continuous bending sections, and the at least two continuous bending sections enclose the first gap 311. Further, the first heat exchange plate 31 is provided with a hollow region, and the hollow region forms the first gap 311.

[0124] The second aspect of the embodiments of the present application proposes a power consuming device 200, which comprises the battery device 100 as mentioned in the above embodiments, and the battery device 100 is used to supply power for the power consuming device 200.

[0125] The power consuming device 200 of the embodiment of the present application, by using the battery device 100 mentioned in the above embodiment, due to the performance improvement of the battery device 100, is beneficial to improve the working power performance of the power consuming device 200.

[0126] The above merely provides the preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A battery device, characterized by, The battery device comprises: a battery monomer assembly comprising a battery monomer unit, the battery monomer unit comprising a plurality of battery monomers, the battery monomers comprising a pole assembly and a first surface and a second surface intersectingly arranged, the pole assembly being arranged on the first surface; a box comprising a first wall, the battery monomers being arranged on a bearing surface of the first wall, and the first surface being intersectingly arranged with the bearing surface; and a heat exchange assembly comprising a first heat exchange plate, the first heat exchange plate being in thermal contact with the first surface, and the first heat exchange plate being provided with a first notch avoiding the pole assembly. The battery monomer unit comprises:

2. The battery device of claim 1, wherein a first battery monomer group and a second battery monomer group being arranged at intervals, all the battery monomers of the first battery monomer group being arranged in the same direction, all the battery monomers of the second battery monomer group being arranged in the same direction, and the pole assembly of the first battery monomer group and the pole assembly of the second battery monomer group being oppositely arranged; the first heat exchange plate being arranged between the first battery monomer group and the second battery monomer group. The number of the battery monomer units is at least two, and two adjacent battery monomer units are arranged at intervals.

3. The battery device of claim 2, wherein The first heat exchange plates are in communication with each other.

4. The battery device of claim 3, wherein The first notch is a rectangular hole or a circular hole, and the shape of the first notch is matched with the shape of the pole assembly.

5. The battery device of claim 1, wherein The heat exchange assembly further comprises a second heat exchange plate in thermal contact with the battery monomers, the second heat exchange plate and the first heat exchange plate being arranged on opposite sides of the battery monomers, respectively.

6. The battery device according to any one of claims 1 to 5, wherein The second heat exchange plate and the first heat exchange plate are in communication.

7. The battery device of claim 6, wherein The second heat exchange plate is in the structure of a harmonica tube.

8. The battery device of claim 6, wherein The heat exchange assembly further comprises a connecting pipe, the first heat exchange plate and the second heat exchange plate being in communication through the connecting pipe.

9. The battery device of claim 6, wherein, The first heat exchange plate comprises at least two continuous bending sections, and the at least two continuous bending sections enclose the first notch.

10. The battery device according to any one of claims 1 to 5, wherein The first heat exchange plate is provided with a hollowed-out area, and the hollowed-out area forms the first notch.

11. The battery device according to any one of claims 1 to 5, wherein The battery device as claimed in any one of claims 1 to 11 is used for supplying power to the power-consuming device.

12. An electrical device, characterized by ​

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