Battery and electric equipment

Abstract

The utility model provides a battery and electric equipment. The battery comprises a battery cell, a shell body and a connecting part, an electrode is arranged at one end of the battery cell. The shell body is provided with a containing cavity used for containing a battery cell, and the electrodes are arranged towards a cavity opening of the containing cavity. One side of the connecting part is connected with the shell body, the other side of the connecting part can be connected with an external component, and the connecting part is in surface contact with the external component. According to the battery provided by the embodiment of the invention, the surface contact between the shell body and the external component can be realized through the connecting part, the contact area between the battery and the external component is increased, the shaking amplitude of the battery relative to the external component is reduced, and the connection reliability of the battery and the external component can be further ensured.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery and an electrical device. Background Art

[0002] A battery is a device that can convert chemical energy into electrical energy, and can provide electrical energy to many electrical appliances, keeping them in working order. Existing batteries are widely used in power fields such as automobiles, engineering machinery and equipment, and ships. They can also be used for household energy storage, industrial and commercial energy storage, and communication base stations.

[0003] The battery generally includes a shell and a battery cell, etc. Based on the structure of the existing shell, when connecting the battery to an external component, it is easy to have an unreliable connection between the battery and the external component. Utility Model Content

[0004] The present application provides a battery and an electrical device to improve the connection reliability between the battery and external components.

[0005] In a first aspect, the present application provides an example of a battery, the battery comprising a battery cell, a shell body and a connecting portion. An electrode is provided at one end of the battery cell. The shell body is provided with a receiving cavity, the receiving cavity is used to receive the battery cell, and the electrode is arranged toward the cavity opening of the receiving cavity. One side of the connecting portion is connected to the shell body, and the other side of the connecting portion can be connected to an external component, and the connecting portion is in surface contact with the external component.

[0006] Based on the above, the shell body is provided with a accommodating cavity, which can provide an installation carrier for structures such as battery cells. One side of the connecting portion is connected to the shell body, and the other side of the connecting portion is connected to the external component. Therefore, the connection between the shell body and the external component can be achieved through the connecting portion. Compared with the prior art, in which the shell is directly connected to the external component through the side wall, the contact between the connecting portion and the external component in the example of the present application is set to be a surface contact, and the connecting portion is a part of the battery. Therefore, the contact area between the battery and the external component can be increased, and the amplitude of the battery shaking relative to the external component can be reduced. It can even prevent the battery from shaking relative to the external component, thereby ensuring the connection reliability between the battery and the external component.

[0007] In some possible implementations, the shell body includes a first side wall and a second side wall that are spaced apart. The connecting portion includes a first connecting portion and a second connecting portion that are spaced apart, one side of the first connecting portion is connected to the second side wall, the other side of the first connecting portion is connected to the first position of the external component, and the first connecting portion is in surface contact with the first position.

[0008] One side of the second connection part is connected to the second side wall, and the other side of the second connection part is connected to the second position of the external component. The second connection part is in surface contact with the second position, and the second position is spaced apart from the first position.

[0009] Since the first side wall and the second side wall are both part of the shell body, and the first side wall and the second side wall are spaced apart, the first side wall can be connected to a first position of the external component via the first connecting portion, and the second side wall can be connected to a second position of the external component via the second connecting portion. Therefore, the shell body and the external component can be connected from different positions via the first connecting portion and the second connecting portion to further ensure the connection reliability between the shell body and the external component.

[0010] In addition, since the first connecting portion contacts the first position surface of the external component and the second connecting portion contacts the second position surface of the external component, the contact area between the battery and the external component can be further increased, the amplitude of the battery shaking relative to the external component can be reduced, and even the battery shaking relative to the external component can be avoided, thereby ensuring the connection reliability between the battery and the external component.

[0011] In some possible implementations, the connecting portion includes a plurality of connecting segments arranged at intervals, one side of the connecting segment is connected to the shell body, and the other side of the connecting portion is connected to the external component.

[0012] In some possible implementations, the connecting portion is an extruded profile.

[0013] By setting the connecting part to an extruded profile, it is convenient to process a hollow structure with a complex cross-section, and it is convenient to improve the supporting strength of the connecting part, which can reduce the weight of the battery, which is beneficial to reducing the manufacturing cost of the battery and improving the mass energy density of the battery.

[0014] In some possible implementations, the battery further includes a reinforcement structure, one end of the reinforcement structure is fixedly connected to the shell body, and the other end of the reinforcement structure is fixedly connected to the connecting portion.

[0015] During the transportation or use of the battery, if the connecting portion is deformed in a direction away from the cavity opening of the accommodating cavity, the reinforcing structure can provide support force for the connecting portion on the side of the connecting portion away from the cavity opening of the accommodating cavity, thereby reducing the possibility of deformation of the connecting portion.

[0016] In some possible implementations, the reinforcing structure is disposed at an angle to the connecting portion.

[0017] The reinforcement structure, the connection part and the outer wall of the shell body can cooperate to form a triangular structure. Since the triangular structure has stability, the reinforcement structure is arranged at an angle with the connection part. During the transportation or use of the battery, if the connection part is deformed in the direction away from the cavity opening of the accommodating cavity, the reinforcement structure can provide support for the connection part on the side of the connection part away from the cavity opening of the accommodating cavity, thereby reducing the possibility of deformation of the connection part and further improving the connection reliability between the battery and the electric vehicle.

[0018] In some possible implementations, the shell body further includes a first cover plate, the first cover plate is disposed between the first side wall and the second side wall, and the first cover plate, the first side wall and the second side wall enclose a receiving cavity.

[0019] In some possible implementations, the battery further includes a cooling assembly, at least a portion of which is disposed on a side of the battery cell away from the electrode and fixedly connected to the first cover plate.

[0020] Since at least part of the cooling assembly is arranged on the side of the battery cell away from the electrode and is fixedly connected to the first cover plate, the connection structure between the cooling assembly and the shell body can be simplified, thereby reducing the manufacturing cost of the battery. Since at least part of the cooling assembly is directly integrated into the first cover plate, the distance between the first cover plate and the cooling assembly can be reduced, thereby reducing the volume of the battery and improving the volume energy density of the battery.

[0021] Since at least part of the cooling assembly is arranged on the side of the battery cell away from the electrode and is fixedly connected to the first cover plate, during the use of the battery, the cooling assembly fixedly connected to the first cover plate can provide support for the first cover plate and improve the use strength of the first cover plate.

[0022] In some possible implementations, the shell body further includes a second cover plate, which is disposed at the cavity opening of the accommodating cavity to close the cavity opening of the accommodating cavity.

[0023] During the use of the battery, the second cover plate can bear the weight of the battery cell, increase the force acting on the battery cell toward the first cover plate, and make the connection between the battery cell and the first cover plate more reliable.

[0024] A second aspect of the present application provides an electrical device, which includes the battery mentioned in the above example.

[0025] The beneficial effects of the electrical equipment provided in the above-mentioned second aspect and each possible design of the above-mentioned second aspect can be referred to the beneficial effects brought about by the above-mentioned first aspect and each possible implementation method of the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the structure of a battery provided as an example of this application.

[0027] Figure 2 for Figure 1 Partial cross-sectional view along AA.

[0028] Figure 3 A schematic diagram of the structure of a shell provided for example in this application.

[0029] Figure 4 This is a partial enlarged schematic diagram of point A in the example of this application.

[0030] Figure 5 A schematic diagram of the structure of another shell provided as an example of this application.

[0031] Description of reference numerals:

[0032] 100. Battery; 110. Shell body; 111. First side wall; 112. First cover plate; 113. Second cover plate; 114. Support beam; 120. Connecting part; 130. Reinforcement structure; 140. Battery cell; 141. Electrode. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the examples of this application clearer, the technical solution in the examples of this application will be clearly and completely described below in conjunction with the drawings in the examples of this application. Obviously, the described examples are part of the examples of this application, not all of them. Based on the examples in this application, all other examples obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used in the specification of the application herein are only for the purpose of describing specific examples and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification, claims and drawings of this application are intended to cover non-exclusive inclusions.

[0035] Reference to "examples" herein means that a particular feature, structure, or characteristic described in conjunction with the examples may be included in at least one example of the present application. The appearance of the phrase "example" in various locations in the specification does not necessarily refer to the same example, nor is it an independent or alternative example that is mutually exclusive with other examples. It is explicitly and implicitly understood by those skilled in the art that the examples described herein may be combined with other examples.

[0036] The term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists, A and B exist at the same time, and B exists. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0037] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the battery and electrical equipment of the present application.

[0038] In addition, the terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0039] In the description of the present application, unless otherwise specified, "plurality" means more than two (including two), and similarly, "multiple groups" means more than two groups (including two).

[0040] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, the "connection" or "connection" of a mechanical structure may refer to a physical connection. For example, the physical connection may be a fixed connection, such as a fixed connection through a barrier, such as a fixed connection through screws, bolts or other barrier; the physical connection may also be a detachable connection, such as a mutual snap-on or snap-fit ​​connection; the physical connection may also be an integral connection, such as a connection formed by welding, bonding or integral molding. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0041] A battery is a device that can provide electrical energy to electrical appliances, allowing them to operate. Batteries generally include a shell and a cell. Electrical appliances can be mobile phones, tablets, cars, electric toys, etc.

[0042] The housing generally includes a plurality of side walls, and in the prior art, the side walls are generally directly connected to the external components. Since the contact area between the side walls and the external components is small, it is easy to have an unreliable connection between the side walls and the external components.

[0043] Based on the above, the present application example provides a battery and an electrical device.

[0044] In order to enable those skilled in the art to better understand the present application, the battery and electrical equipment provided in the example of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0045] Exemplarily, the present application example provides an electrical device, which includes a battery.

[0046] The power-consuming device uses a battery as its power source. The power-consuming device may be, but is not limited to, a mobile phone, a tablet, a laptop, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, etc. This application example is described only by taking the power-consuming device as an electric car as an example, and the battery may be connected to the chassis of the electric car.

[0047] Next, the battery mentioned in the above example is introduced in detail.

[0048] For example, Figure 1 A schematic diagram of the structure of a battery provided as an example of this application, Figure 2 for Figure 1 For a partial cross-sectional view of the middle line AA, please refer to Figure 1 and Figure 2 The battery 100 may include a battery cell 140, a shell body 110, and a connecting portion 120. An electrode 141 is provided at one end of the battery cell 140. The shell body 110 is provided with a receiving cavity, which is used to receive the battery cell 140, and the electrode 141 is arranged toward the cavity opening of the receiving cavity. One side of the connecting portion 120 is connected to the shell body 110, and the other side of the connecting portion 120 can be connected to an external component, and the connecting portion 120 is in surface contact with the external component.

[0049] The battery 100 may include one or more battery cells 140. The battery cell 140 may include an electrode 141, and the electrode 141 is arranged at one end of the battery cell 140. Based on the different connection methods between the battery 100 and the car, the electrode 141 of the battery cell 140 may be arranged away from the chassis of the car, and the electrode 141 of the battery cell 140 may also be arranged toward the chassis of the car. During normal driving of the car, the chassis is located between the ground and the battery 100. This application example is only described by taking the example of the electrode 141 facing the chassis of the electric car.

[0050] In the battery 100, there may be a plurality of battery cells 140, and the plurality of battery cells 140 may be connected in series, in parallel, or in a mixed connection. A mixed connection means that the plurality of battery cells 140 are both connected in series and in parallel. The plurality of battery cells 140 may be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the plurality of battery cells 140 is accommodated in the accommodation cavity. Of course, the battery 100 may also be a plurality of battery cells 140 first connected in series, in parallel, or in a mixed connection to form a battery 100 module, and then the plurality of battery 100 modules are connected in series, in parallel, or in a mixed connection to form a whole, and accommodated in the accommodation cavity. The battery 100 may also include other structures. For example, the battery 100 may also include a converging component for realizing electrical connection between the plurality of battery 100 monomers. Among them, each battery cell 140 may be a secondary battery 100 or a primary battery 100. It may also be a lithium-sulfur battery 100, a sodium-ion battery 100, or a magnesium-ion battery 100, but is not limited thereto.

[0051] The shell body 110 may be provided with a receiving cavity, and the battery cell 140 is disposed in the receiving cavity.

[0052] The shell body 110 can adopt various structures. For example, the shell body 110 can be cylindrical, rectangular or other cube-shaped. The present application example only describes the shell body 110 component in a rectangular shape as an example.

[0053] During use of the battery 100 , the opening of the accommodating cavity may face the external component, the connecting portion 120 may be connected to the outer wall of the shell body 110 , and the shell body 110 may be disposed on one side of the shell body 110 close to the accommodating cavity.

[0054] There may be one connecting portion 120 , or there may be a plurality of connecting portions 120 .

[0055] When there are multiple connection parts 120, different connection parts 120 can be respectively connected to the side walls of the shell body 110 arranged at intervals. Different connection parts 120 can also be connected to the side walls of the shell body 110 arranged adjacently. The present application example does not specifically limit the position of the connection part 120 relative to the shell body 110.

[0056] The connection part 120 can be made of a steel plate, a profile or other materials. The connection part 120 can be a plate-shaped structure or other structures.

[0057] The connection portion 120 may be connected to the external component by welding, threading, riveting or other methods.

[0058] The external component may vary according to the specific use environment of the battery 100. For example, when the electric device is an electric vehicle, the external component may be the chassis of the electric vehicle.

[0059] One side of the connection part 120 can be connected to the shell body 110 by being integrally formed with the shell body 110. One side of the connection part 120 can also be connected to the shell body 110 by welding, bonding, riveting, etc. One side of the connection part 120 can also be connected to the shell body 110 by threaded connection, etc.

[0060] The other side of the connection part 120 can be connected to the external component by welding, and the other side of the connection part 120 can also be connected to the external component by a sleeve, threaded connection or other methods. The example of this application does not specifically limit the connection method between the connection part 120 and the external component, as long as it is ensured that when the connection part 120 is connected to the external component, the connection plate is in surface contact with the external component.

[0061] Based on the above, the shell body 110 is provided with a accommodating cavity, which can provide a mounting carrier for structures such as the battery cell 140. One side of the connecting portion 120 is connected to the shell body 110, and the other side of the connecting portion 120 is connected to the external component. Therefore, the connection between the shell body 110 and the external component can be achieved through the connecting portion 120. Compared with the prior art, in which the shell is directly connected to the external component through the side wall, the contact between the connecting portion 120 and the external component in the example of the present application is set to be a surface contact, and the connecting portion 120 is a part of the battery 100. Therefore, the contact area between the battery 100 and the external component can be increased, and the amplitude of the shaking of the battery 100 relative to the external component can be reduced, and the shaking of the battery 100 relative to the external component can even be avoided, thereby ensuring the connection reliability between the battery 100 and the external component.

[0062] Based on the battery 100 provided in the above example, please refer to Figure 1 The shell body 110 may include a first side wall 111 and a second side wall that are spaced apart. The connecting portion 120 may include a first connecting portion and a second connecting portion that are spaced apart, one side of the first connecting portion is connected to the second side wall, the other side of the first connecting portion is connected to the first position of the external component, and the first connecting portion is in surface contact with the first position.

[0063] One side of the second connection part is connected to the second side wall, and the other side of the second connection part is connected to the second position of the external component. The second connection part is in surface contact with the second position, and the second position is spaced apart from the first position.

[0064] The first position and the second position of the external component may be different positions on the same surface of the external component.

[0065] The first side wall 111 and the second side wall may both be made of steel plates or other materials. The first side wall 111 and the second side wall may also be made of profiles, or at least one of the first side wall 111 and the second side wall may be made of profiles.

[0066] There may be a first angle between the first connection portion and the first side wall 111. The first angle may be an acute angle, a right angle, or an obtuse angle, as long as the first connection portion is in surface contact with the first position of the external component.

[0067] One side of the first connection portion can be connected to the side of the first side wall 111 away from the cavity wall of the accommodating cavity, and the other side of the first connection portion can be connected to the first position of the external component. Based on this, the first side wall 111 can be connected to the external component through the first connection portion.

[0068] There may be a second angle between the second connection portion and the second side wall. The second angle may be an acute angle, a right angle, or an obtuse angle, as long as the second connection portion is in surface contact with the second position of the external component.

[0069] One side of the second connection portion can be connected to the side of the second side wall away from the cavity wall of the accommodating cavity, and the other side of the second connection portion can be connected to the second position of the external component. Based on this, the second side wall can be connected to the external component through the second connection portion.

[0070] Based on the above, since the first side wall 111 and the second side wall are both part of the shell body 110, and the first side wall 111 and the second side wall are spaced apart, the first side wall 111 can be connected to a first position of the external component through a first connecting portion, and the second side wall can be connected to a second position of the external component through a second connecting portion. Therefore, the shell body 110 and the external component can be connected from different positions through the first connecting portion and the second connecting portion to further ensure the connection reliability between the shell body 110 and the external component.

[0071] In addition, since the first connection portion contacts the surface of the external component at the first position and the second connection portion contacts the surface of the external component at the second position, the contact area between the battery 100 and the external component can be further increased, and the amplitude of the shaking of the battery 100 relative to the external component can be reduced, and even the shaking of the battery 100 relative to the external component can be avoided, thereby ensuring the connection reliability between the battery 100 and the external component.

[0072] Based on the battery 100 provided in the above example, the connection portion 120 may include a plurality of connection segments (not shown in the figure) arranged at intervals, one side of the connection segment is connected to the shell body 110, and the other side of the connection portion 120 is connected to the external component.

[0073] The connecting portion 120 may include two connecting segments, three connecting segments or even more connecting segments, and this example of the application does not impose any specific limitation on this.

[0074] Based on the battery 100 provided in the above example, the connection portion 120 may be an extruded profile.

[0075] The extruded profile can be an aluminum profile, a magnesium profile, a magnesium-aluminum alloy profile or a profile of other materials.

[0076] By setting the connecting portion 120 as an extruded profile, it is convenient to process a hollow structure with a complex cross-section (such as a harmonica-shaped profile), which is convenient to improve the supporting strength of the connecting portion 120, and can reduce the weight of the battery 100, which is beneficial to reducing the manufacturing cost of the battery 100 and improving the mass energy density of the battery 100.

[0077] Based on the battery 100 provided in the above example, Figure 3 For a schematic diagram of the structure of a shell provided for this application example, please refer to Figure 3The battery 100 may further include a reinforcing structure 130 , one end of the reinforcing structure 130 is fixedly connected to the shell body 110 , and the other end of the reinforcing structure 130 is fixedly connected to the connecting portion 120 . Figure 3 The middle shell refers to a structure formed by the shell body 110 , the connecting portion 120 and the reinforcement structure 130 .

[0078] The reinforcement structure 130 may be disposed on a side of the connection portion 120 that is away from the cavity opening of the accommodating cavity.

[0079] The reinforcement structure 130 may be a reinforcement plate, a reinforcement rib or other structures. The number of the reinforcement structures 130 may be equal to the number of the connecting parts 120 , and the reinforcement structures 130 correspond to the connecting parts 120 one by one.

[0080] The reinforcing structure 130 may be parallel to the connecting portion 120 , or the reinforcing structure 130 may be arranged at an angle to the connecting portion 120 .

[0081] When the reinforcing structure 130 is parallel to the connecting portion 120, the reinforcing structure 130 is spaced apart from the connecting portion 120. Based on this, during the transportation or use of the battery 100, if the connecting portion 120 is deformed in a direction away from the cavity opening of the accommodating cavity, the reinforcing structure 130 can provide support force for the connecting portion 120 on the side of the connecting portion 120 away from the cavity opening of the accommodating cavity, thereby reducing the degree of deformation of the connecting portion 120 and improving the connection reliability between the battery 100 and the electric vehicle.

[0082] When the reinforcing structure 130 is parallel to the connecting portion 120, the reinforcing structure 130 may also be in contact with the connecting portion 120. Based on this, during the transportation or use of the battery 100, if the connecting portion 120 is deformed in a direction away from the cavity opening of the accommodating cavity, the reinforcing structure 130 may provide support force for the connecting portion 120 on the side of the connecting portion 120 away from the cavity opening of the accommodating cavity, thereby reducing the possibility of deformation of the connecting portion 120 and further improving the connection reliability between the battery 100 and the electric vehicle.

[0083] When the reinforcing structure 130 and the connecting portion 120 are arranged at an angle, Figure 4 This is a partial enlarged schematic diagram of point A in this application example. Please refer to Figure 4 One side of the reinforcement structure 130 may be connected to the connection portion 120 , and the other side of the reinforcement structure 130 may be connected to the outer wall of the shell body 110 .

[0084] The reinforcing structure 130, the connecting portion 120 and the outer wall of the shell body 110 can cooperate to form a triangular structure. Since the triangular structure has stability, by setting the reinforcing structure 130 and the connecting portion 120 at an angle, during the transportation or use of the battery 100, if the connecting portion 120 is deformed in a direction away from the cavity opening of the accommodating cavity, the reinforcing structure 130 can provide support force for the connecting portion 120 on the side of the connecting portion 120 away from the cavity opening of the accommodating cavity, thereby reducing the possibility of deformation of the connecting portion 120 and further improving the connection reliability between the battery 100 and the electric vehicle.

[0085] Based on the above, during the transportation or use of the battery 100, if the connecting portion 120 is deformed in a direction away from the cavity opening of the accommodating cavity, the reinforcing structure 130 can provide support force for the connecting portion 120 on the side of the connecting portion 120 away from the cavity opening of the accommodating cavity, thereby reducing the possibility of deformation of the connecting portion 120.

[0086] Based on the battery 100 provided in the above example, please refer to Figure 2 The shell body 110 may further include a first cover plate 112, and the first side wall 111 and the second side wall may be connected to two opposite sides of the first cover plate 112. The first cover plate 112, the first side wall 111, the second side wall and other structures of the shell body 110 may cooperate to form a receiving cavity.

[0087] When the battery 100 is connected to an external component, the first cover plate 112 may be disposed away from the external component relative to the connection portion 120 .

[0088] The first cover plate 112, the first side wall 111 and the second side wall may be integrally formed. The first cover plate 112, the first side wall 111 and the second side wall may be connected together by welding or other methods.

[0089] The end of the battery cell 140 facing away from the electrode 141 may be connected to the first cover plate 112 . Specifically, the battery cell 140 may be connected to the first cover plate 112 by bonding or other connection methods.

[0090] By arranging that at least one of the first cover plate 112 , the first side wall 111 and the second side wall is made of profile, the weight of the battery 100 can be further reduced, the manufacturing cost of the battery 100 can be reduced, and the mass energy density of the battery 100 can be improved.

[0091] In addition, since in the example of the present application, the first cover plate 112 is arranged away from the chassis of the electric vehicle compared to the electrode 141, during the use of the battery 100, the first cover plate 112 can bear at least part of the weight of the operator.

[0092] Based on the battery 100 provided by the above exemplary method, the battery 100 may further include a cooling assembly, at least part of which is disposed on a side of the battery cell 140 away from the electrode 141 and fixedly connected to the first cover plate 112 .

[0093] The cooling assembly may include a cooling pipe, a water inlet and a water outlet, and the water inlet and the water outlet may be provided on the shell body 110. One end of the cooling pipe may be connected to the water inlet, and the other end of the cooling pipe may be connected to the water outlet. At least part of the cooling pipe is provided on the side of the battery cell 140 away from the electrode 141. At least part of the cooling pipe may be provided between the battery cell 140 and the first cover plate 112 and fixedly connected to the first cover plate 112, and may be specifically integrated into the first cover plate 112.

[0094] Based on this, the coolant entering from the water inlet can flow through the cooling pipe and out of the water outlet. During the flow of the coolant, the coolant can carry at least part of the heat generated by the battery 100 during operation to improve the heat dissipation efficiency of the battery 100 and ensure the safety of the battery 100.

[0095] In addition, since at least part of the cooling assembly is disposed on the side of the battery cell 140 away from the electrode 141 and is fixedly connected to the first cover plate 112, based on this, the connection structure between the cooling assembly and the shell body 110 can be simplified, thereby reducing the manufacturing cost of the battery 100. Since at least part of the cooling assembly is directly integrated into the first cover plate 112, the distance between the first cover plate 112 and the cooling assembly can be reduced, thereby reducing the volume of the battery 100 and improving the volume energy density of the battery 100.

[0096] Since at least part of the cooling assembly is arranged on the side of the battery cell 140 away from the electrode 141 and is fixedly connected to the first cover plate 112, during the use of the battery 100, the cooling assembly fixedly connected to the first cover plate 112 can provide support for the first cover plate 112 and improve the use strength of the first cover plate 112.

[0097] Based on the battery 100 provided in the above example, please refer to Figure 2 The shell body 110 may further include a second cover plate 113, and the second cover plate 113 is disposed at the cavity opening of the accommodating cavity to close the accommodating cavity.

[0098] The second cover plate 113 can be connected to the first side wall 111 and the second side wall by screw connection, riveting or other connection methods. As long as the battery cell 140 is installed in the receiving cavity, the second cover plate 113 can close the cavity opening of the receiving cavity, which can reduce the possibility of the battery cell 140 escaping from the receiving cavity.

[0099] When the battery 100 is coupled with the battery cell 140 , the electrode 141 of the battery cell 140 may be disposed toward the second cover plate 113 .

[0100] During use of the battery 100 , the second cover plate 113 can bear the weight of the battery cell 140 , thereby increasing the force acting on the battery cell 140 toward the first cover plate 112 , thereby making the connection between the battery cell 140 and the first cover plate 112 more reliable.

[0101] Based on the battery 100 provided in the above example, the battery 100 may further include a smoke duct. The smoke duct may be provided on a side of the second cover plate 113 facing the accommodating cavity.

[0102] The flue gas duct can cooperate with the explosion-proof structure to discharge the heat in the battery 100 to the outside of the battery 100 when the battery 100 is in a thermal runaway state, so as to accelerate the cooling speed of the battery 100.

[0103] Based on the battery 100 provided in the above example, Figure 5 For another structural diagram of the shell provided in this application example, please refer to Figure 5 The battery 100 may further include a support beam 114. The support beam 114 may be disposed in the accommodating cavity, and two ends of the support beam 114 may be connected to two opposite side walls of the accommodating cavity. Figure 5 The middle shell refers to a structure formed by the shell body 110 , the connecting portion 120 , the reinforcing structure 130 and the supporting beam 114 .

[0104] One or more support beams 114 may be provided.

[0105] The support beam 114 may include a first end and a second end, and the accommodating cavity may include a first cavity wall and a second cavity wall arranged opposite to each other. The first end of the support beam 114 may be connected to the first cavity wall of the accommodating cavity, and the second end of the support beam 114 may be connected to the second cavity wall of the accommodating cavity. Based on this, in the case where the first cavity wall is deformed relative to the second cavity wall, or the second cavity wall is deformed relative to the first wall, the support beam 114 can provide support force for the first cavity wall and the second cavity wall, reduce the degree of deformation between the first cavity wall and the second cavity wall, and thereby improve the strength of the shell body 110.

[0106] In addition, the supporting beam 114 can be used to divide the accommodating cavity into a plurality of chambers arranged at intervals, each of which can accommodate one or more battery cells 140. The cavity wall of the cavity can provide a clamping force to the battery cell 140 in the cavity, thereby reducing the amplitude of the battery cell 140 shaking in the cavity.

[0107] Finally, it should be noted that the above embodiments are only specific implementation methods of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A battery, characterized in that: The battery comprises: A battery cell, one end of which is provided with an electrode; The shell body is provided with a receiving cavity, the receiving cavity is used to receive the battery cell, and the electrode is arranged toward the cavity opening of the receiving cavity; A connecting portion, one side of which is connected to the shell body, and the other side of which can be connected to an external component, wherein the connecting portion is in surface contact with the external component.

2. The battery according to claim 1, characterized in that The shell body includes a first side wall and a second side wall that are spaced apart; The connecting portion includes a first connecting portion and a second connecting portion which are spaced apart from each other, one side of the first connecting portion is connected to the second side wall, the other side of the first connecting portion is connected to the first position of the external component, and the first connecting portion is in surface contact with the first position; One side of the second connection portion is connected to the second side wall, and the other side of the second connection portion is connected to a second position of the external component. The second connection portion is in surface contact with the second position, and the second position is spaced apart from the first position.

3. The battery according to claim 1, characterized in that The connecting portion includes a plurality of connecting segments arranged at intervals, one side of the connecting segment is connected to the shell body, and the other side of the connecting portion is connected to the external component.

4. The battery according to any one of claims 1 to 3, characterized in that: The connecting portion is an extruded profile.

5. The battery according to claim 1, characterized in that It also includes a reinforcement structure, one end of which is fixedly connected to the shell body, and the other end of which is fixedly connected to the connecting portion.

6. The battery according to claim 5, characterized in that The reinforcement structure is arranged at an angle to the connection portion.

7. The battery according to claim 2, characterized in that The shell body further includes a first cover plate, which is disposed between the first side wall and the second side wall. The first cover plate, the first side wall and the second side wall together form the accommodating cavity.

8. The battery according to claim 7, characterized in that It also includes a cooling assembly, at least part of which is arranged on a side of the battery core away from the electrode and is fixedly connected to the first cover plate.

9. The battery according to claim 7, characterized in that The shell body also includes a second cover plate, which is arranged at the cavity opening of the accommodating cavity to close the cavity opening of the accommodating cavity.

10. An electrical device, characterized in that: A battery comprising the battery according to any one of claims 1 to 9.

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