Battery assembly and electric device

Abstract

The utility model discloses a battery assembly and an electric device, and relates to the technical field of batteries. The battery assembly comprises a battery monomer, at least one component and a protection plate, the battery monomer comprises a battery cell and a tab, the battery cell is provided with a mounting surface, and the tab is arranged on the mounting surface; the protection plate is parallel to the mounting surface, one side, close to the mounting surface, of the protection plate is provided with an electric connection part, the electric connection part is electrically connected with the tabs, and each component is electrically connected with the protection plate. According to the battery assembly, the thickness of the head of the battery assembly can be effectively reduced.

Description

TECHNICAL FIELD

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

[0002] A battery protection board is a circuit device used to prevent dangerous situations such as overcharging, over-discharging, short circuiting, and temperature abnormalities of a battery. The battery protection board is used to ensure the safe use of the battery and prolong its service life.

[0003] The battery protection board in the related art is vertically placed, the battery protection board is perpendicular to the top surface of the battery, the nickel sheet on the battery protection board is electrically connected with the pole lug of the battery, and the components are arranged on the same side of the nickel sheet. In this way, the thickness of the head of the battery monomer can be reduced, but the problem of excessive thickness of the battery head still exists. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the present application provides a battery assembly and a power consumption device to solve one of the technical problems in the prior art.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0006] In a first aspect, the embodiments of the present application provide a battery assembly, comprising:

[0007] A battery monomer comprising a cell and a pole lug, wherein the cell has a mounting surface, and the pole lug is arranged on the mounting surface.

[0008] At least one component;

[0009] A protection board, wherein the protection board is arranged parallel to the mounting surface, one side of the protection board close to the mounting surface is provided with an electrical connection part, the electrical connection part is electrically connected with the pole lug, and each component is electrically connected with the protection board.

[0010] In one of the embodiments of the first aspect, the protection board is bent to form at least one sub-protection board, each sub-protection board is parallel to the mounting surface, and adjacent two sub-protection boards are arranged at intervals, and the components are arranged on any sub-protection board.

[0011] In one of the embodiments of the first aspect, in the direction perpendicular to the mounting surface, the projection of each sub-protection board is located in the mounting surface.

[0012] In one of the embodiments of the first aspect, the protection board is provided with a reinforcing structure corresponding to the position of the components.

[0013] In one of the embodiments of the first aspect, the reinforcing structure forms a reinforcing area on the sub-protection plate, and a projection of each of the components in a direction perpendicular to the mounting surface is located in the reinforcing area.

[0014] In one of the embodiments of the first aspect, the reinforcing structure protrudes from a surface of the sub-protection plate parallel to the mounting surface.

[0015] and / or;

[0016] The reinforcing structure is in a plate shape or a mesh shape.

[0017] In one of the embodiments of the first aspect, the protection plate comprises a first sub-protection plate, a second sub-protection plate, and a connecting plate, the first sub-protection plate is arranged away from the mounting surface, the second sub-protection plate is arranged on a side of the first sub-protection plate away from the mounting surface, and a bending part between the first sub-protection plate and the second sub-protection plate forms the connecting plate.

[0018] In one of the embodiments of the first aspect, in a direction perpendicular to the mounting surface, the first sub-protection plate comprises a first surface and a second surface arranged away from each other, the first surface is close to the mounting surface, and the electrical connection part is arranged on the first surface.

[0019] In one of the embodiments of the first aspect, when at least one of the components is arranged on the first sub-protection plate, the reinforcing structure is arranged on the first surface, and the component is arranged on the second surface.

[0020] In one of the embodiments of the first aspect, in a direction perpendicular to the mounting surface, a projection of the electrical connection part is located outside the reinforcing area.

[0021] In one of the embodiments of the first aspect, the protection plate further comprises an electrical connection terminal, and the electrical connection terminal is connected to the second sub-protection plate.

[0022] In one of the embodiments of the first aspect, the number of the tabs is at least one, the number of the electrical connection parts is at least one, and one of the tabs is electrically connected to one of the electrical connection parts.

[0023] In the second aspect, the embodiments of the present application further provide a power consumption device comprising the battery assembly in any of the above embodiments.

[0024] Compared with the prior art, the present application has the beneficial effects that the present application provides a battery assembly comprising a battery monomer, at least one component, and a protection plate, the battery monomer comprises a battery cell and a tab, the battery cell has a mounting surface, the tab is arranged on the mounting surface, and the protection plate is arranged parallel to the mounting surface, so that the edge of the protection plate can be effectively controlled to not exceed the edge of the battery cell.

[0025] The side of the protection plate close to the mounting surface is provided with an electrical connection part, which is electrically connected with the tab, so as to shorten the distance between the tab and the electrical connection part and reduce the length of the tab.

[0026] Each component is electrically connected with the protection plate, and the thickness direction of the component is parallel to the direction perpendicular to the mounting surface, so as to reduce or even prevent the component from being exposed to the edge of the battery cell, reduce the thickness of the head of the battery assembly, and reduce the thickness of the whole battery assembly. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present 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 embodiments of the present application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0028] Figure 1 Fig. 1 shows a front view structural schematic diagram of a battery assembly in some embodiments of the present application;

[0029] Figure 2 Fig. 2 shows a top view structural schematic diagram of a battery assembly in some embodiments of the present application; Figure 1

[0030] Figure 3 Fig. 3 shows a side view structural schematic diagram of a battery assembly in some embodiments of the present application; Figure 1

[0031] Figure 4 Fig. 4 shows a structural schematic diagram of one side of the protection plate in an unfolded state in some embodiments of the present application;

[0032] Figure 5 Fig. 5 shows a structural schematic diagram of the other side of the protection plate in an unfolded state in some embodiments of the present application;

[0033] Figure 6 Fig. 6 shows another front view structural schematic diagram of a battery assembly in some embodiments of the present application;

[0034] Figure 7 Fig. 7 shows a structural schematic diagram of a battery assembly in the related art.

[0035] ​​Main element symbol explanation: 100 - battery assembly; 110 - battery cell; 111 - battery core; 112 - tab; 120 - component; 130 - protection plate; 1111 - mounting surface; 131 - electrical connection part; 132 - sub-protection plate; 133 - reinforcing structure; 1331 - reinforcing area; 1321 - first sub-protection plate; 13211 - first surface; 13212 - second surface; 1322 - second sub-protection plate; 1323 - connecting plate; 134 - electrical connection terminal; D1 - battery core width direction; D2 - battery core thickness direction. DETAILED DESCRIPTION

[0036] Embodiments of the present application are described in detail below with reference to examples illustrated in the accompanying drawings, in which the same or similar elements or elements having the same or similar functions are denoted by the same or similar reference numerals throughout. The embodiments described below by reference to the accompanying drawings are exemplary and are intended only for explanation of the present application, and cannot be understood as limiting the present application.

[0037] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying 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 present application.

[0038] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0039] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or 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 present application can be understood according to the specific circumstances.

[0040] In the present application, unless otherwise explicitly specified and limited, a first feature is "on" or "under" a second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature is "over", "above" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature is "under", "below" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0041] In the related art, as shown in the prior art, the battery protection plate is vertically placed, the battery protection plate is perpendicular to the top surface of the battery, the nickel sheet on the battery protection plate is electrically connected with the tab of the battery, and the components are arranged on the same side of the nickel sheet. Thus, compared with arranging the components on the back side of the nickel sheet, the thickness of the head of the battery monomer can be reduced. Figure 7

[0042] However, the components have a thickness, and there is a case that the components are exposed at the edge of the battery cell. In addition, the battery protection plate itself has a certain thickness, and because it needs to be connected with the components, the thickness of the battery protection plate cannot be too thin. Thus, the problem of the over-thickness of the battery head still exists, and when the battery head is subsequently packaged, the thickness of the battery head will exceed the thickness of the battery cell, so that the overall thickness of the battery assembly is increased.

[0043] As shown in the prior art, embodiments of the present application provide a battery assembly 100, which includes a battery monomer 110, at least one component 120 and a protection plate 130. The protection plate 130 is electrically connected with the battery monomer 110, the component 120 is arranged on the protection plate 130 and is electrically connected with the protection plate 130. Figure 1 The types of the components 120 include protection integrated circuits, field effect transistors, resistors, capacitors, resistance fuses and other components 120 not limited to examples.

[0044] The types of the protection plate 130 can be divided into three types: a hard Printed Circuit Board (PCB), a flexible Flexible Printed Circuit (FPC) and a soft and hard combination board. Among them, the flexible circuit board has good bendability.

[0045] The battery monomer 110 includes a battery cell 111 and a tab 112, the battery cell 111 has a mounting surface 1111, and the tab 112 is arranged on the mounting surface 1111.

[0046] The mounting surface 1111 is arranged at the end of the battery cell 111, and the tab 112 is electrically connected with the battery cell 111.

[0047]

[0048] ​​The mounting surface 1111 is a flat surface. The protection plate 130 is arranged parallel to the mounting surface 1111, so that the edge of the protection plate 130 can be effectively controlled to not exceed the edge of the mounting surface 1111 of the battery cell 111.

[0049] The protection plate 130 is provided with an electrical connection portion 131 on the side close to the mounting surface 1111, so as to shorten the distance between the tab 112 and the electrical connection portion 131 and reduce the length of the tab 112. The electrical connection portion 131 is connected to the protection plate 130, and the electrical connection portion 131 is also electrically connected to the tab 112, so as to electrically connect the battery cell 111 and the protection plate 130.

[0050] Each component 120 is electrically connected to the protection plate 130, and the thickness direction of the component 120 is parallel to the direction perpendicular to the mounting surface 1111, so as to reduce or even prevent the component 120 from being exposed to the edge of the battery cell 111, reduce the thickness of the head of the battery assembly 100, and reduce the overall thickness of the battery assembly 100.

[0051] The protection plate 130 is bent to form at least one sub-protection plate 132, each sub-protection plate 132 is parallel to the mounting surface 1111, and adjacent two sub-protection plates 132 are arranged with a spacing, and the component 120 is arranged on any sub-protection plate 132. In this way, the thickness direction of the component 120 is parallel to the direction perpendicular to the mounting surface 1111, so as to reduce or even prevent the component 120 from being exposed to the edge of the battery cell 111.

[0052] Meanwhile, as shown in Figure 2 and Figure 3 , by arranging the sub-protection plate 132 parallel to the mounting surface 1111, the thickness direction of the sub-protection plate 132 is parallel to the direction perpendicular to the mounting surface 1111, so as to effectively control the edge of the sub-protection plate 132 to not exceed the edge of the mounting surface 1111, reduce the thickness of the head of the battery assembly 100, and reduce the overall thickness of the battery assembly 100.

[0053] In some embodiments, in the direction perpendicular to the mounting surface 1111, the projection of each sub-protection plate 132 is located within the mounting surface 1111. As shown in Figure 2 and Figure 3 , the edge of each sub-protection plate 132 does not exceed the edge of the battery cell 111, especially in the thickness direction of the battery cell 111, the width of the sub-protection plate 132 is less than or equal to the thickness of the battery cell 111, so as to reduce the thickness of the head of the battery assembly 100.

[0054] In some embodiments, the protection plate 130 is provided with a reinforcing structure 133 corresponding to the position of the component 120.

[0055] In the present embodiment, as shown in Figure 1 , the protection plate 130 is a flexible circuit board or a rigid-flex board.

[0056] The reinforcing structure 133 fixes the position of the protection plate 130, and the protection plate 130 is not easy to move when the battery assembly 100 shakes. The reinforcing structure 133 can also prevent the protection plate 130 from deforming, so that the components 120 and the protection plate 130 form a stable connection and are not easy to fall off.

[0057] In some embodiments, as shown in Figure 4 The reinforcing structure 133 forms a reinforcing area 1331 on the sub-protection plate 132, and the projection of each component 120 is located in the reinforcing area 1331 in the direction perpendicular to the mounting surface 1111. In this way, the reinforcing structure 133 effectively supports each component 120.

[0058] In some embodiments, as shown in Figure 1 and Figure 4 The reinforcing structure 133 is protruded from the surface of the sub-protection plate 132 parallel to the mounting surface 1111; and / or, the reinforcing structure 133 is in the form of a plate or a net.

[0059] In this embodiment, as shown in Figure 1 The reinforcing structure 133 is protruded from the surface of the sub-protection plate 132 parallel to the mounting surface 1111.

[0060] The projection of the component 120 in the reinforcing area 1331 means that the component 120 and the reinforcing structure 133 are located on the same side surface of the sub-protection plate 132, and the component 120 is located in the reinforcing area 1331; or, the component 120 is located on the surface of the sub-protection plate 132 facing or away from the mounting surface 1111, and the reinforcing structure 133 is correspondingly located on the surface of the sub-protection plate 132 facing away or towards the mounting surface 1111, and the component 120 is located in the reinforcing area 1331.

[0061] In this embodiment, as shown in Figure 1 The reinforcing structure 133 is also in the form of a plate, and is made of FR-4 or a steel sheet with surface insulation treatment.

[0062] FR-4 is a laminated board material widely used in printed circuit boards (PCB), which has good electrical properties, mechanical strength and heat resistance, and is mainly composed of glass fiber cloth and epoxy resin.

[0063] The surface of the reinforcing structure 133 has insulating properties to avoid short circuit.

[0064] The component 120 and the reinforcing structure 133 are not coplanar, the component 120 is located on the surface of the sub-protection plate 132 facing or away from the mounting surface 1111, and the reinforcing structure 133 is correspondingly located on the surface of the sub-protection plate 132 facing away or towards the mounting surface 1111, and the component 120 is located in the reinforcing area 1331.

[0065] In other embodiments, the reinforcing structure 133 can also be achieved by changing the rigidity of the protection plate 130. For example, as shown in FIG. 1C, the sub-protection plate 132 close to the mounting surface 1111 is made of a rigid circuit board, and the sub-protection plate 132 away from the mounting surface 1111 is made of a flexible circuit board. In this way, the component 120 is arranged on the surface of the sub-protection plate 132 facing the mounting surface 1111 and / or the surface of the sub-protection plate 132 away from the mounting surface 1111. Figure 1

[0066] In other embodiments, the reinforcing structure 133 can also be in a mesh shape, so that a vacant area is formed in the reinforcing structure 133, and the component 120 is arranged in the vacant area. In this way, the reinforcing structure 133 can effectively support the protection plate 130, and the number of components 120 that can be arranged on the protection plate 130 can be increased.

[0067] In some embodiments, as shown in FIG. 1D, the protection plate 130 includes a first sub-protection plate 1321, a second sub-protection plate 1322, and a connecting plate 1323. The first sub-protection plate 1321 is arranged away from the mounting surface 1111. The second sub-protection plate 1322 is arranged on the side of the first sub-protection plate 1321 away from the mounting surface 1111. The connecting plate 1323 is formed at the bending part between the first sub-protection plate 1321 and the second sub-protection plate 1322. Figure 1

[0068] In this embodiment, the first sub-protection plate 1321, the connecting plate 1323, and the second sub-protection plate 1322 are integrally formed. The first sub-protection plate 1321, the connecting plate 1323, and the second sub-protection plate 1322 are all made of a flexible circuit board.

[0069] It should be noted that in this embodiment, as shown in FIG. 1E, the protection plate 130 is bent once to form the first sub-protection plate 1321 and the second sub-protection plate 1322 parallel to the mounting surface 1111. By bending the protection plate 130, the edge of the protection plate 130 in the direction perpendicular to the mounting surface 1111 is located in the mounting surface 1111, and the head of the battery assembly 100 will not be too wide. Figure 1

[0070] As shown in FIG. 1F, the bending direction of the protection plate 130 is away from the width edge of the battery cell 111, and the number of bending can be set according to the requirement. It should be understood that the more the number of bending of the protection plate 130, the more the number of sub-protection plates 132 and connecting plates 1323. Figure 1 In some embodiments, as shown in FIG. 1G, the protection plate 130 includes a first sub-protection plate 1321, a second sub-protection plate 1322, and a connecting plate 1323. The first sub-protection plate 1321 is arranged away from the mounting surface 1111. The second sub-protection plate 1322 is arranged on the side of the first sub-protection plate 1321 away from the mounting surface 1111. The connecting plate 1323 is formed at the bending part between the first sub-protection plate 1321 and the second sub-protection plate 1322.

[0071] Figure 4 Figure 5 Figure 1 ​​​​​​As shown, in the direction of the vertical mounting surface 1111, the first sub-protection plate 1321 comprises a first surface 13211 and a second surface 13212 which are arranged away from each other, the first surface 13211 is close to the mounting surface 1111, and the electrical connection part 131 is arranged on the first surface 13211.

[0072] In some embodiments, the tab 112 and the electrical connection part 131 are electrically connected by welding.

[0073] For example, the electrical connection part 131 is made of a nickel sheet, a copper sheet or a silver sheet.

[0074] As shown in Figure 7 and Figure 1 , the tab 112 extends in the direction of the vertical mounting surface 1111, and the electrical connection part 131 has a welding surface which is parallel to the mounting surface 1111. Before the tab 112 is welded to the electrical connection part 131, the tab 112 needs to be bent so that at least part of the tab 112 is parallel to the mounting surface 1111, and then the part of the tab 112 which is parallel to the mounting surface 1111 is welded to the electrical connection part 131, thereby increasing the connection area of the tab 112 and the electrical connection part 131 and enhancing the overcurrent capacity between the tab 112 and the electrical connection part 131.

[0075] It should be noted that the assembly process of the battery assembly 100 is as follows:

[0076] First, the bending mode of the protection plate 130 and the connection position of the component 120 are designed;

[0077] The reinforcing structure 133 is connected to the position of the protection plate 130 where the component 120 needs to be connected;

[0078] The electrical connection part 131 is assembled;

[0079] The protection plate 130 is placed on the mounting surface 1111 so that each sub-protection plate 132 is parallel to the mounting surface 1111;

[0080] The tab 112 is bent, and the tab 112 is welded to the electrical connection part 131;

[0081] Each component 120 is mounted into the reinforcing area 1331 of the corresponding sub-protection plate 132;

[0082] The protection plate 130 is bent to avoid the head of the battery assembly 100 being too wide;

[0083] The electrical connection terminal 134 is electrically connected to the external device.

[0084] The sequence of the above assembly process can be adjusted as required.

[0085] In some embodiments, as shown in Figure 4 , Figure 5 andFigure 6 As shown, when at least one component 120 is arranged on the first sub-protective plate 1321, the reinforcing structure 133 is arranged on the first surface 13211, and the component 120 is arranged on the second surface 13212.

[0086] In the width direction of the electric core 111, the length of the second sub-protective plate 1322 is less than that of the first sub-protective plate 1321, so that when the protective plate 130 is arranged on the mounting surface 1111, part of the second surface 13212 is exposed in the direction perpendicular to the mounting surface 1111, facilitating the arrangement of the component 120 and improving the processing efficiency of the battery assembly 100.

[0087] In some embodiments, as shown in Figure 1 , the component 120 can be arranged on the side of the second sub-protective plate 1322 away from the mounting surface 1111, and the reinforcing structure 133 is correspondingly arranged on the side of the second sub-protective plate 1322 close to the mounting surface 1111, facilitating the arrangement of the component 120.

[0088] The number of reinforcing structures 133 is at least one.

[0089] For example, the reinforcing structure 133 is made of FR-4 plate, and when one or more components 120 are arranged on the first sub-protective plate 1321, one reinforcing structure 133 is correspondingly arranged on the first sub-protective plate 1321 to form a first reinforcing area 1331, and each component 120 is located in the first reinforcing area 1331. Similarly, when one or more components 120 are arranged on the second sub-protective plate 1322, one reinforcing structure 133 is correspondingly arranged on the second sub-protective plate 1322 to form a second reinforcing area 1331, and each component 120 is located in the second reinforcing area 1331. When the protective plate 130 further includes a third sub-protective plate 132 and a fourth sub-protective plate 132, the same applies.

[0090] In some embodiments, as shown in Figure 4 , Figure 5 and Figure 1 , in the direction perpendicular to the mounting surface 1111, the projection of the electric connection part 131 is located outside the reinforcing area 1331.

[0091] The electric connection part 131 is arranged on the side of the protective plate 130 close to the mounting surface 1111, in other words, in the direction away from the mounting surface 1111, the position of the electric connection part 131 is arranged on the side of the first sub-protective plate 132 close to the mounting surface 1111, facilitating the corresponding arrangement of the electric connection part 131 and the tab 112 and shortening the length of the tab 112.

[0092] The electrical connection part 131 is located outside the reinforcement area 1331, which can avoid interference between the electrical connection part 131 and the reinforcement structure 133 and / or components 120, improve the pass rate of the battery assembly 100, and make the quality of the battery assembly 100 more stable.

[0093] In some embodiments, the number of tabs 112 is at least one, the number of electrical connections 131 is at least one, and one tab 112 is electrically connected to one electrical connection 131.

[0094] For example, such as Figure 6 As shown, there are two electrical connection portions 131, one of which is electrically connected to the positive electrode tab 112, and the other is electrically connected to the negative electrode tab 112. The two electrical connection portions 131 are spaced apart on the right side of the reinforcing region 1331.

[0095] For example, such as Figure 6 As shown, one electrical connection portion 131 is spaced apart on the left side of the reinforcing region 1331, and another electrical connection portion 131 is spaced apart on the right side of the reinforcing region 1331.

[0096] For example, such as Figure 1 As shown, when there is only one electrical connection part 131, the electrical connection part 131 is electrically connected to the positive electrode tab 112 or the negative electrode tab 112, and the electrical connection part 131 is provided at intervals on the left or right side of the reinforcement region 1331.

[0097] In some embodiments, the protection board 130 further includes an electrical connection terminal 134, which is connected to the second sub-protection board 1322. The electrical connection terminal 134 is used to connect to an external circuit. The electrical connection terminal 134 is disposed at an end of the second sub-protection board 1322.

[0098] like ​ As shown, since the second sub-protection board 1322 adopts a flexible circuit board, the electrical connection terminal 134 and the second sub-protection board 1322 can be bent, which makes it easier to adjust the position of the electrical connection terminal 134 more flexibly so that it can be electrically connected to the connection terminal of the external device.

[0099] This application also provides an electrical device including the battery assembly 100 in any of the above embodiments, and therefore has all the beneficial effects of the battery assembly 100 in any of the above embodiments, which will not be described in detail here.

[0100] The power device of this application achieves the purpose of reducing the maximum thickness of the battery assembly 100 by arranging each sub-protection plate 132 in the protection plate 130 parallel to the mounting surface 1111 of the battery cell 111, thereby enabling the power device of this application to achieve a lighter and thinner shape structure and improve competitiveness.

[0101] The power consuming device of the present application also improves the assembly efficiency of the battery assembly 100 by arranging the reinforcing structure 133 on the first surface 13211 of the first sub-protection plate, and arranging the component 120 on the second surface 13212 of the first sub-protection plate 1321.

[0102] The power consuming device of the present application also increases the connection area of the tab 112 and the electrical connection part 131 by connecting the tab 112 of the battery cell 111 to the electrical connection part 131 after folding, reduces the connection resistance, and improves the discharge power of the battery cell 111.

[0103] It should be noted that the power consuming device can be a vehicle, a mobile phone, a portable device, a notebook computer, an electric toy, an electric tool, or the like. The electric toy includes a stationary or mobile electric toy, such as a game machine, an electric car toy, an electric ship toy, an electric plane toy, or the like. The electric tool includes a metal cutting electric tool, a grinding electric tool, an assembling electric tool, and a railway electric tool, such as an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an impact electric drill, a concrete vibrator, an electric planer, or the like. The embodiments of the present application do not specially limit the above power consuming device.

[0104] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0105] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A battery assembly, comprising: The application relates to a battery cell (110) comprising an electrode core (111) having a mounting surface (1111) and a tab (112) arranged on the mounting surface (1111); at least one component (120); a protection plate (130) arranged parallel to the mounting surface (1111) and having an electrical connection portion (131) arranged on a side close to the mounting surface (1111) and electrically connected to the tab (112), and each component (120) is electrically connected to the protection plate (130). The protection plate (130) is bent to form at least one sub-protection plate (132), each of which is parallel to the mounting surface (1111) and arranged at intervals between two adjacent sub-protection plates (132), and each component (120) is arranged on any one of the sub-protection plates (132). In a direction perpendicular to the mounting surface (1111), the projection of each sub-protection plate (132) is located in the mounting surface (1111). The protection plate (130) is provided with a reinforcing structure (133) corresponding to the position of the component (120).

2. The battery assembly of claim 1, wherein, The reinforcing structure (133) forms a reinforcing area (1331) on the sub-protection plate (132), and in a direction perpendicular to the mounting surface (1111), the projection of each component (120) is located in the reinforcing area (1331).

3. The battery assembly of claim 2, wherein, The reinforcing structure (133) is arranged on the surface of the sub-protection plate (132) parallel to the mounting surface (1111).

4. The battery assembly of claim 2, wherein, The reinforcing structure (133) is in the form of a plate or a net.

5. The battery assembly of claim 4, wherein, The protection plate (130) comprises a first sub-protection plate (1321), a second sub-protection plate (1322) and a connecting plate (1323), the first sub-protection plate (1321) is arranged at intervals from the mounting surface (1111), the second sub-protection plate (1322) is arranged on a side of the first sub-protection plate (1321) away from the mounting surface (1111), and the connecting plate (1323) is formed at the bending part between the first sub-protection plate (1321) and the second sub-protection plate (1322).

6. The battery assembly of claim 4, wherein, In a direction perpendicular to the mounting surface (1111), the first sub-protection plate (1321) comprises a first surface (13211) and a second surface (13212) arranged away from each other, the first surface (13211) is close to the mounting surface (1111), and the electrical connection portion (131) is arranged on the first surface (13211). When at least one component (120) is arranged on the first sub-protection plate (1321), the reinforcing structure (133) is arranged on the first surface (13211), and the component (120) is arranged on the second surface (13212). In a direction perpendicular to the mounting surface (1111), the projection of the electrical connection portion (131) is located outside the reinforcing area (1331).

7. The battery assembly of claim 5, wherein, ​ 8. The battery assembly of claim 7, wherein, ​ 9. The battery assembly of claim 8, wherein, ​ 10. The battery assembly of claim 9, wherein, ​ 11. The battery assembly of claim 8, wherein, The protection plate (130) further comprises an electric connection terminal (134) connected with the second sub-protection plate (1322).

12. The battery assembly of any one of claims 1-11, wherein, The number of the tabs (112) is at least one, and the number of the electric connection parts (131) is at least one, one tab (112) corresponding to one electric connection part (131) electrically connected.

13. An electrical device, comprising: The battery assembly (100) according to any one of claims 1 to 12.

Images