Battery and electric device

Abstract

The utility model relates to a battery and an electric device. The battery comprises a box body; the at least one battery cell row is arranged in the box body along the first direction, and each battery cell row comprises a plurality of battery cells arranged along the second direction; the pressing strip assembly comprises a first pressing strip and a second pressing strip which are made of different materials and extend in the second direction. The first pressing strip comprises a top pressing and holding part and a side pressing and holding part which are vertically connected, the top pressing and holding part presses and holds at least part of the top surfaces of the plurality of battery cells of the battery cell row, the side pressing and holding part presses and holds at least part of the side surfaces of the plurality of battery cells of the battery cell row, and the second pressing strip presses and holds one side, far away from the battery cell row in the third direction, of the top pressing and holding part and is fixedly connected with the box body; wherein the first direction, the second direction and the third direction intersect. The first pressing strip and the second pressing strip which are made of different materials are matched with each other, so that the defect of mechanical property caused by the pressing strip made of one material can be overcome, the composite pressing strip is not easy to break when the battery is strongly impacted, the battery core is not easy to displace or deform, and the structural performance of the battery is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field especially relates to a battery and electric device. BACKGROUND

[0002] With the rapid expansion and development of new energy market, the market share of new energy vehicles gradually increases, therefore, as the core component of new energy vehicles - power battery, the application in people's life is increasingly widespread.

[0003] The mainstream CTP battery in the market at present, the bottom of the battery cell is fixed by the heat conduction structure adhesive bonding, and the top of the battery cell is fixed by the adhesive bonding of the pressing strip. The traditional pressing strip is usually prepared by epoxy plate, and the epoxy plate has the problem of insufficient mechanical properties. When the battery is subjected to strong impact, the epoxy plate may be broken or delaminated, and the battery cell is prone to displacement or deformation, which reduces the structural performance of the battery. UTILITY MODEL CONTENT

[0004] Therefore, it is necessary to provide a battery and electric device for reducing the displacement or deformation of the battery cell by using first and second pressing strips with different materials to press and hold the battery cell, in view of the problem that the single-material pressing strip is prone to breakage when the battery is subjected to strong impact, thereby causing the battery cell to be prone to displacement or deformation.

[0005] In one aspect, the present application provides a battery, comprising:

[0006] a box body;

[0007] at least one row of battery cell rows arranged in the box body along a first direction, each row of battery cell rows comprising a plurality of battery cells arranged along a second direction;

[0008] a pressing strip assembly comprising a first pressing strip and a second pressing strip with different materials and extending along the second direction; the first pressing strip comprises a top pressing part and a side pressing part connected vertically, the top pressing part presses at least part of the top surface of the plurality of battery cells of the battery cell row, the side pressing part presses at least part of the side surface of the plurality of battery cells of the battery cell row, and the second pressing strip is pressed on the side of the top pressing part away from the battery cell row along a third direction and is fixedly connected with the box body;

[0009] wherein the first direction, the second direction and the third direction intersect.

[0010] In one embodiment, the first pressing strip is a glass fiber reinforced plastic pressing strip.

[0011] and / or

[0012] the second pressing strip is a steel strip or an aluminum strip.

[0013] In one of the embodiments, the first pressing strip is made of a pultruded polyurethane sheet.

[0014] In one of the embodiments, the top of the top pressing part is provided with a clamping groove, the second pressing strip is clamped in the clamping groove, and the part of the second pressing strip extending out of the clamping groove is fixedly connected with the box body.

[0015] In one of the embodiments, the top pressing part is glued and fixed to at least part of the top surface of the battery cells along the third direction towards one side of the battery cell row;

[0016] and / or

[0017] the side pressing part is glued and fixed to at least part of the side surface of the battery cells along the first direction towards one side of the battery cell row.

[0018] In one of the embodiments, the top pressing part is provided with a first glue groove for accommodating a first glue layer along the third direction towards one side of the battery cell row, and the top pressing part is fixed to at least part of the top surface of the battery cells through the first glue layer;

[0019] and / or

[0020] the side pressing part is provided with a second glue groove for accommodating a second glue layer along the first direction towards one side of the battery cell row, and the side pressing part is fixed to at least part of the side surface of the battery cells through the second glue layer.

[0021] In one of the embodiments, the top pressing part and the side pressing part of the first pressing strip are integrally formed.

[0022] In one of the embodiments, the pressing strip assembly comprises a first pressing strip assembly, the first pressing strip of the first pressing strip assembly is in an L-shaped structure, the top pressing part is pressed to at least part of the top surface of a plurality of battery cells in a row of the battery cell row, and the side pressing part is pressed to at least part of the side surface of a plurality of battery cells in a row of the battery cell row.

[0023] and / or

[0024] the pressing strip assembly comprises a second pressing strip assembly, the first pressing strip of the second pressing strip assembly is in a T-shaped structure, the horizontal part of the T-shaped structure forms the top pressing part, the vertical parts of the T-shaped structure respectively form the side pressing parts along the two sides of the first direction, the two ends of the top pressing part are respectively pressed to at least part of the top surface of a plurality of battery cells in two adjacent rows of the battery cell row, and the side pressing parts located on the two sides along the first direction are respectively pressed to at least part of the side surface of a plurality of battery cells in two adjacent rows of the battery cell row.

[0025] In one of the embodiments, the box comprises a main body having a cavity and a partition plate arranged in the cavity to divide the cavity into a plurality of assembly cavities arranged along the second direction, and each row of the cell rows is divided into a plurality of cell units by the partition plate, and one of the cell units of each row of the cell rows is arranged in one of the assembly cavities.

[0026] Each of the cell units is correspondingly provided with a group of the pressing strip assemblies, and the second pressing strips of the corresponding groups of the pressing strip assemblies of each row of the cell rows are integrally formed.

[0027] In another aspect, the application further provides a power utilization device comprising the above battery.

[0028] Compared with the prior art, the application has the following beneficial effects:

[0029] The application provides a battery provided with a pressing strip assembly, the pressing strip assembly comprising a first pressing strip and a second pressing strip made of different materials, the first pressing strip having a top pressing holding portion for pressing holding a top surface of a cell of a cell row and a side pressing holding portion for pressing holding a side surface of the cell of the cell row, and the second pressing strip being fixedly connected with the box and pressing held on a side of the top pressing holding portion of the first pressing strip away from the cell. That is, the pressing strip assembly realizes the pressing holding of the cell by means of a composite pressing strip, and the first pressing strip and the second pressing strip made of different materials can compensate for the insufficient mechanical properties caused by using a pressing strip made of one kind of material (such as a pressing strip made of an epoxy plate), and the composite pressing strip is not easy to break when the battery is subjected to a strong impact, and is not easy to cause the displacement or deformation of the cell, thereby improving the structural properties of the battery. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0031] Figure 1 The structural diagram of the battery provided by a preferred embodiment of the application;

[0032] Figure 2 The structural diagram of the battery provided by a preferred embodiment of the application; Figure 1 The structural diagram of the battery provided by a preferred embodiment of the application; Figure 2 The structural diagram of the battery provided by a preferred embodiment of the application;

[0033] Figure 3 The structural diagram of the battery provided by a preferred embodiment of the application; Figure 1 The structural diagram of the battery provided by a preferred embodiment of the application;

[0034] Figure 4 The structural diagram of the battery provided by a preferred embodiment of the application; Figure 1The first pressing strip of the two groups of pressing assembly of the battery shown in the figure is in L-shaped structure and the second pressing strip is integrally formed;

[0035] Figure 5 For Figure 3 The enlarged view of A of the battery shown in the figure;

[0036] Figure 6 For Figure 3 The enlarged view of B of the battery shown in the figure;

[0037] Figure 7 The first pressing strip of the battery provided by the embodiment of the present application is in T-shaped structure (the second glue layer and part of the first glue layer are hidden in the figure); Figure 7

[0038] Figure 8 The structure schematic diagram of the first pressing strip after filling glue (all the first glue layer and the second glue layer are shown in the figure); Figure 7 Figure 8

[0039] Explanation of reference signs:

[0040] 100, battery; 10, box body; 11, main body; 12, partition plate; 13, assembly cavity; A, cell row; B, cell unit; 20, cell; 30, pressing strip assembly; 30a, first pressing strip assembly; 30b, second pressing strip assembly; 31, first pressing strip; 311, top pressing holding part; 3111, clamping groove; 3112, first glue groove; 312, side pressing holding part; 3121, second glue groove; 32, second pressing strip; 40, first glue layer; 50, second glue layer; 60, screw; X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0041] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0042] ​​​In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is 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 utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0043] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0044] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0045] In the utility model, unless otherwise specifically defined and limited, the first feature "on" or "under" the 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 "above", "above" and "above" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0046] It is to be understood that when an element such as a layer, region or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements can be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. It will be understood that, although the terms "first", "second", etc. can be used herein to describe various elements, these elements should not be limited by these terms since such elements are commonly known with other elements irrespective of their

[0047] Referring to Figure 1 In some embodiments, the battery 100 includes at least one row of cell arrays A arranged in the first direction X in the box 10, and each row of cell arrays A includes a plurality of cells 20 arranged in the second direction Y. In another embodiment, the battery 100 includes one row of cell arrays A arranged in the box 10, and the row of cell arrays A includes a plurality of cells 20 arranged in the second direction Y.

[0048] Referring to Figures 2-4 The battery 100 further includes a pressing strip assembly 30, which includes a first pressing strip 31 extending in the second direction Y. The first pressing strip 31 includes a top pressing portion 311 and a side pressing portion 312, which are connected perpendicularly. The top pressing portion 311 presses at least part of the top surface of the plurality of cells 20 of the cell array A, and the side pressing portion 312 presses at least part of the side surface of the plurality of cells 20 of the cell array A. The top pressing portion 311 and the side pressing portion 312 are integrally formed to facilitate manufacturing. Of course, in other embodiments, the top pressing portion 311 and the side pressing portion 312 can be manufactured separately and then assembled together.

[0049] It is to be understood that the top surface of the cell 20 is the surface of the cell 20 away from the bottom wall of the box 10, and the side surface of the cell 20 is the surface of the cell 20 opposite to the side wall of the box 10. The top pressing portion 311 can press at least part of the top surface of all or part of the cells 20 of one row of cell arrays A, or all or part of the cells 20 of two rows of cell arrays A, or all or part of the cells 20 of more than two rows of cell arrays A. The side pressing portion 312 can press at least part of the side surface of all or part of the cells 20 of one row of cell arrays A, or all or part of the cells 20 of two rows of cell arrays A, or all or part of the cells 20 of more than two rows of cell arrays A, without being limited herein.

[0050] In some embodiments, referring to Figure 5 andFigure 6 The top pressing portion 311 is pressed against the top surface of the plurality of battery cells 20 of the battery cell row A to avoid pressing against the structure such as the pole or the explosion-proof valve pressed against the top surface of the battery cell 20, and the side pressing portion 312 is pressed against the side surface of the plurality of battery cells 20 of the battery cell row A.

[0051] Continuing to refer to Figure 5 and Figure 6 The pressing strip assembly 30 further includes a second pressing strip 32, the second pressing strip 32 is different from the material of the first pressing strip 31, the second pressing strip 32 extends along the second direction Y, and is fixedly connected with the box body 10 on the side of the top pressing portion 311 of the first pressing strip 31 away from the battery cell row A. Specifically, the second pressing strip 32 is fixedly connected with the box body 10 through the screw 60. Generally, continuing to refer to Figure 2 The screw 60 is arranged on the second pressing strip 32 and the box body 10 along the third direction Z to achieve the fixed connection of the second pressing strip 32 and the box body 10. When the second pressing strip 32 is fixedly connected with the box body 10, the top pressing portion 311 of the first pressing strip 31 is clamped between the second pressing strip 32 and the box body 10, so that the first pressing strip 31 is not easy to displace under the action of the second pressing strip 32, thereby reducing the displacement or deformation of the battery cell 20.

[0052] The first direction X, the second direction Y and the third direction Z intersect with each other. Specifically, the first direction X, the second direction Y and the third direction Z are perpendicular to each other. In some specific embodiments, the box body 10 is a hollow cuboid structure, so that the external contour of the battery 100 is cuboid, one of the first direction X and the second direction Y is the width direction of the battery 100, and the other is the length direction of the battery 100, and the third direction Z is the height direction of the battery 100. Of course, in other specific embodiments, the shape of the battery 100 is not limited, and the first direction X, the second direction Y and the third direction Z are specific directions of the battery 100, which are different according to the shape of the battery 100.

[0053] The battery 100 provided by the embodiment of the application includes the first pressing strip 31 and the second pressing strip 32 which are different in material, the top pressing portion 311 of the first pressing strip 31 is pressed against the top surface of the battery cell 20 of the battery cell row A, the side pressing portion 312 is pressed against the side surface of the battery cell 20 of the battery cell row A, and the second pressing strip 32 is pressed against the side of the top pressing portion 311 of the first pressing strip 31 away from the battery cell 20 and is fixedly connected with the box body 10. That is, the pressing strip assembly 30 realizes the pressing of the battery cell 20 by means of the composite pressing strip, and the first pressing strip 31 and the second pressing strip 32 which are different in material can compensate for the insufficient mechanical properties caused by using a pressing strip made of one material (such as an epoxy plate), and the composite pressing strip is not easy to break and cause the displacement or deformation of the battery cell 20 when the battery 100 is subjected to strong impact, thereby improving the structural performance of the battery 100.

[0054] In some embodiments, the first pressing strip 31 is a glass fiber reinforced plastic strip, and the second pressing strip 32 is a steel strip. The glass fiber reinforced plastic, also known as glass steel, is a functional new material made of synthetic resin and glass fiber through a composite process. Compared with traditional metal materials and non-metal materials, the glass steel material and its products have the characteristics of high strength and good performance. The combination of the two types of pressing strips can greatly reduce the displacement and deformation of the battery cell 20 when the battery 100 is shaken, thereby improving the structural performance of the battery 100 pack.

[0055] In other embodiments, the first pressing strip 31 can also be a glass fiber reinforced plastic strip, and the second pressing strip 32 can be an aluminum strip. It should be noted that when the second pressing strip 32 is an aluminum strip, it is necessary to ensure that the aluminum strip meets the performance requirements.

[0056] Specifically, the first pressing strip 31 is made of a pultruded polyurethane sheet, and the pultruded polyurethane sheet contains 60%-80% glass fiber. Pultruded polyurethane generally has low viscosity, moderate to high reactivity, good impact strength and toughness, and short beam shear performance. It can be understood that in other embodiments, the first pressing strip 31 can also be made of other glass fiber reinforced plastics, which are not limited here.

[0057] In some embodiments, referring to Figure 5 , the pressing strip assembly 30 includes a first pressing strip assembly 30a, and the first pressing strip 31 of the first pressing strip assembly 30a has an L-shaped structure. One end of the L-shaped structure forms a top pressing portion 311, and the other end of the L-shaped structure forms a side pressing portion 312. The top pressing portion 311 is pressed against at least part of the top surface of the plurality of battery cells 20 in the same row of battery cell rows A, and the side pressing portion 312 is pressed against at least part of the side surface of the plurality of battery cells 20 in the same row of battery cell rows A. Alternatively, the first pressing strip assembly 30a can be pressed against the row of battery cell rows A closest to the side wall of the box body 10, or can be pressed against other battery cell rows A located in the middle, which is not limited here.

[0058] Further, referring to Figure 6 , the pressing strip assembly 30 further includes a second pressing strip assembly 30b, and the first pressing strip 31 of the second pressing strip assembly 30b has a T-shaped structure. The horizontal portion of the T-shaped structure forms a top pressing portion 311, and the vertical portion of the T-shaped structure forms a side pressing portion 312 on both sides of the first direction X. The two ends of the top pressing portion 311 are respectively pressed against at least part of the top surface of the plurality of battery cells 20 in the adjacent two rows of battery cell rows A, and the side pressing portions 312 on both sides of the first direction X are respectively pressed against at least part of the side surface of the plurality of battery cells 20 in the adjacent two rows of battery cell rows A.

[0059] It should be noted that the battery 100 can be provided with the first pressing strip assembly 30a and the second pressing strip assembly 30b simultaneously, or provided with the first pressing strip assembly 30a alone or the second pressing strip assembly 30b alone, which is not limited herein.

[0060] It can be conceived that in some other embodiments, the first pressing strip 31 can be provided in any manner as long as the top pressing portion 311 can press the at least part of the top surface of the plurality of battery cells 20 of the battery cell row A, and the side pressing portion 312 can press the at least part of the side surface of the plurality of battery cells 20 of the battery cell row A.

[0061] In some embodiments, continuing to refer to Figure 2 The box body 10 includes a main body 11 and a partition plate 12. The main body 11 has a cavity, and the partition plate 12 is arranged in the cavity to divide the cavity into a plurality of assembly cavities 13 arranged along the second direction Y. Each battery cell row 20 is divided by the partition plate 12 into a plurality of battery cell units B, and one battery cell unit B of each battery cell row 20 is arranged in one assembly cavity 13. Each battery cell unit B is correspondingly provided with a set of pressing strip assemblies 30, and the second pressing strips 32 of the plurality of sets of pressing strip assemblies 30 corresponding to each battery cell row A are integrally formed. For example, in a specific embodiment, the partition plate 12 divides each battery cell row A into two battery cell units B, and the second pressing strips 32 of the two sets of pressing strip assemblies 30 corresponding to the two battery cell units B included in each battery cell row A are integrally formed. In this way, the structure of the battery 100 can be simplified.

[0062] It can be conceived that in some other embodiments, the second pressing strips 32 of the respective pressing strip assemblies 30 can be independently arranged, which is not limited herein.

[0063] It should be noted that the second pressing strip 32 can be connected to the main body 11, the partition plate 12, or both the main body 11 and the partition plate 12. It can be conceived that in some other embodiments, the box body 10 can omit the partition plate 12, which is not limited herein.

[0064] In some embodiments, the top pressing portion 311 is adhesively fixed to at least part of the top surface of the battery cell 20 on one side of the battery cell row A along the third direction Z. The adhesive can bond the top surfaces of the plurality of battery cells 20 to form a whole, and adhesively fix the top pressing portion 311 to the top surface of the battery cell 20, so as to reduce the displacement between the first pressing strip 31 and the battery cell 20, and further reduce the displacement or deformation of the battery cell 20 in the box body 10.

[0065] Further, the side pressing portion 312 is glued to at least part of the side surface of the battery cell 20 along the first direction X toward one side of the battery cell row A. The glue can bond the side surfaces of the plurality of battery cells 20 into one whole and glue the side pressing portion 312 to the side surface of the battery cell 20, so as to reduce the displacement between the first pressing strip 31 and the battery cell 20, and further reduce the displacement or deformation of the battery cell 20 in the box 10.

[0066] Generally, the top pressing portion 311 and the side pressing portion 312 of the first pressing strip 31 are glued to the top surface and the side surface of the battery cell 20 respectively. At present, in other embodiments, only the top pressing portion 311 can be glued to the top surface of the battery cell 20, and no glue layer is arranged between the side pressing portion 312 and the side surface of the battery cell 20, or only the side pressing portion 312 can be glued to the side surface of the battery cell 20, and no glue layer is arranged between the top pressing portion 311 and the top surface of the battery cell 20.

[0067] Referring to Figure 7 and Figure 8 , the top pressing portion 311 is provided with a first glue groove 3112 along the third direction Z toward one side of the battery cell row A, and the first glue layer 40 is accommodated in the first glue groove 3112, so that the top pressing portion 311 is glued to at least part of the top surface of the battery cell 20 through the first glue layer 40. By arranging the first glue groove 3112 and arranging the first glue layer 40 in the first glue groove 3112, the thickness of the top pressing portion 311 can be reduced, and further the size of the entire battery 100 in the third direction Z can be reduced. Generally, the part of the top pressing portion 311 facing the battery cell 20 and not provided with the first glue groove 3112 abuts against the battery cell 20, so that the thickness of the first glue layer 40 is equal to the depth of the first glue groove 3112, so that the first glue layer 40 has the thinnest glue thickness.

[0068] Referring to Figure 7 and Figure 8 , the side pressing portion 312 is provided with a second glue groove 3121 along the first direction X toward one side of the battery cell row A, and the second glue layer 50 is accommodated in the second glue groove 3121, so that the side pressing portion 312 is glued to at least part of the side surface of the battery cell 20 through the second glue layer 50. By arranging the second glue groove 3121 and arranging the second glue layer 50 in the second glue groove 3121, the thickness of the side pressing portion 312 can be reduced, and further the size of the entire battery 100 in the first direction X can be reduced. Generally, the part of the side pressing portion 312 facing the battery cell 20 and not provided with the second glue groove 3121 abuts against the battery cell 20, so that the thickness of the second glue layer 50 is equal to the depth of the second glue groove 3121, so that the second glue layer 50 has the thinnest glue thickness.

[0069] Optionally, the first adhesive layer 40 and the second adhesive layer 50 are both made of structural adhesive. Structural adhesive refers to an adhesive with high strength (compressive strength > 65 MPa, steel-steel tensile bonding strength > 30 MPa, shear strength > 18 MPa), which can withstand large load and is stable in performance within the expected service life, and is suitable for bonding structural parts that bear strong force.

[0070] Generally, the top pressing part 311 is provided with a first adhesive groove 3112 on one side of the battery cell row A along the third direction Z, and the first adhesive layer 40 is accommodated into the first adhesive groove 3112, so that the top pressing part 311 is adhesively fixed to at least part of the top surface of the battery cell 20 through the first adhesive layer 40. The side pressing part 312 is provided with a second adhesive groove 3121 on one side of the battery cell row A along the first direction X, and the second adhesive layer 50 is accommodated into the second adhesive groove 3121, so that the side pressing part 312 is adhesively fixed to at least part of the side surface of the battery cell 20 through the second adhesive layer 50. Of course, in some other embodiments, only the top pressing part 311 is provided with the first adhesive groove 3112, and the side pressing part 312 is not provided with the second adhesive groove 3121. In some other embodiments, only the top pressing part 311 is not provided with the first adhesive groove 3112, and the side pressing part 312 is provided with the second adhesive groove 3121.

[0071] In some embodiments, referring to Figure 6 and Figure 7 , the top of the top pressing part 311 is provided with a clamping groove 3111, and the second pressing strip 32 is clamped in the clamping groove 3111, and the part of the second pressing strip 32 extending out of the clamping groove 3111 along the second direction Y is fixedly connected to the box body 10. Since the second pressing strip 32 extends along the second direction Y, the clamping groove 3111 used for accommodating the second pressing strip 32 also extends along the second direction Y. When the second pressing strip 32 is arranged in the clamping groove 3111, the clamping groove 3111 can limit the second pressing strip 32 in the first direction X, that is, the clamping groove 3111 can limit the displacement of the second pressing strip 32 and the first pressing strip 31 in the first direction X, so that the second pressing strip 32 is always pressed on the first pressing strip 31. Generally, the size of the clamping groove 3111 in the first direction X is equal to the size of the second pressing strip 32 in the first direction X, so as to ensure the limiting effect.

[0072] Optionally, the depth of the clamping groove 3111 in the third direction Z can be less than the thickness of the second pressing strip 32, or can be greater than or equal to the thickness of the second pressing strip 32, which is not limited here.

[0073] Another embodiment of the present application also provides a power consumption device comprising the above-mentioned battery 100. Since the above-mentioned battery 100 has beneficial effects, the power consumption device comprising the above-mentioned battery 100 also has the same beneficial effects, which will not be described in detail here.

[0074] Optionally, the electric device is a vehicle, which can be a fuel automobile, a gas automobile or a new energy automobile, and the new energy automobile can be a pure electric vehicle, a hybrid vehicle or a range extended vehicle, etc.

[0075] It is worth noting that for the pure electric vehicle, the above-mentioned battery 100 can be used as a driving power supply, thereby replacing fossil fuels to provide driving power.

[0076] In some other embodiments, the type of electric device is not limited, such as a ship, a spacecraft, an electric toy, an electric tool, an energy storage device, an amusement device, an elevator and a lifting device, etc. The spacecraft includes an airplane, a rocket, a space shuttle and a spacecraft, etc. The electric toy includes a fixed or mobile electric toy, such as a game console, an electric car toy, an electric ship toy or an electric plane toy, etc. 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 drill, a concrete vibrator and an electric planer, etc. The energy storage device can be an energy storage wall, a base station energy storage, a container energy storage, etc. The amusement device can be a carousel, a free fall, etc. The present application does not specially limit the above-mentioned electric device.

[0077] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0078] The above-mentioned embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be pointed out that for those skilled in the art, without departing from the concept of the present application, some modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A battery, characterized in that, include: Box (10); At least one row of battery cell arrays (A) is disposed within the housing (10) along a first direction (X), and each row of battery cell arrays (A) includes a plurality of battery cells (20) disposed along a second direction (Y); The pressure strip assembly (30) includes a first pressure strip (31) and a second pressure strip (32) of different materials, both extending along the second direction (Y); the first pressure strip (31) includes a top pressure holding part (311) and a side pressure holding part (312) connected vertically, the top pressure holding part (311) presses at least a portion of the top surface of a plurality of the battery cells (20) of the battery cell array (A), the side pressure holding part (312) presses at least a portion of the side surface of a plurality of the battery cells (20) of the battery cell array (A), and the second pressure strip (32) presses against the side of the top pressure holding part (311) away from the battery cell array (A) along the third direction (Z) and is fixedly connected to the housing (10); The first direction (X), the second direction (Y), and the third direction (Z) intersect.

2. The battery according to claim 1, characterized in that, The first pressure strip (31) is a glass fiber reinforced plastic pressure strip; and / or The second pressure strip (32) is a steel strip or an aluminum strip.

3. The battery according to claim 2, characterized in that, The first pressure strip (31) is formed by pultruding polyurethane sheet.

4. The battery according to claim 1, characterized in that, The top of the top pressing part (311) is provided with a slot (3111), the second pressing strip (32) is engaged in the slot (3111), and the part extending out of the slot (3111) along the second direction (Y) is fixedly connected to the box body (10).

5. The battery according to claim 1, characterized in that, The top pressing support (311) is glued to at least a portion of the top surface of the battery cell (20) on the side facing the battery cell array (A) in the third direction (Z); and / or The side pressure holding part (312) is glued to at least a portion of the side of the battery cell (20) along the first direction (X) toward the battery cell array (A).

6. The battery according to claim 5, characterized in that, The top pressing support (311) is provided with a first adhesive groove (3112) for accommodating the first adhesive layer (40) on the side facing the cell array (A) along the third direction (Z). The top pressing support (311) is fixed to at least a portion of the top surface of the cell (20) through the first adhesive layer (40). and / or The side pressure holding part (312) is provided with a second adhesive groove (3121) for accommodating the second adhesive layer (50) on one side of the cell array (A) along the first direction (X). The side pressure holding part (312) is fixed to at least a portion of the side of the cell (20) by the second adhesive layer (50).

7. The battery according to claim 1, characterized in that, The top pressure holding part (311) and the side pressure holding part (312) of the first pressure strip (31) are integrally formed.

8. The battery according to any one of claims 1-7, characterized in that, The pressure strip assembly (30) includes a first pressure strip assembly (30a), wherein the first pressure strip (31) of the first pressure strip assembly (30a) has an L-shaped structure, the top pressing part (311) presses against at least a portion of the top surface of a plurality of the cells (20) of a row of the cell array (A), and the side pressing part (312) presses against at least a portion of the side surface of a plurality of the cells (20) of a row of the cell array (A); and / or The pressure strip assembly (30) includes a second pressure strip assembly (30b). The first pressure strip (31) of the second pressure strip assembly (30b) is a T-shaped structure. The horizontal part of the T-shaped structure forms the top pressure holding part (311). The vertical part of the T-shaped structure forms the side pressure holding parts (312) on both sides along the first direction (X). The two ends of the top pressure holding part (311) press against at least part of the top surface of a plurality of cells (20) of two adjacent rows of cell arrays (A). The side pressure holding parts (312) located on both sides along the first direction (X) press against at least part of the side surface of a plurality of cells (20) of two adjacent rows of cell arrays (A).

9. The battery according to any one of claims 1-7, characterized in that, The housing (10) includes a main body (11) and a partition plate (12). The main body (11) has a cavity, and the partition plate (12) is disposed in the cavity to divide the cavity into a plurality of assembly cavities (13) arranged along the second direction (Y). Each row of battery cells (A) is divided into a plurality of battery cell units (B) by the partition plate (12), and one battery cell unit (B) of each row of battery cells (A) is disposed in one assembly cavity (13). Each of the battery cell units (B) is provided with a set of pressure strip assemblies (30), and the second pressure strip (32) of the multiple sets of pressure strip assemblies (30) corresponding to each row of battery cell units (A) is integrally formed.

10. An electrical appliance, characterized in that, Includes the battery as described in any one of claims 1-9.

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