Battery and electric equipment

Abstract

The utility model relates to the technical field of batteries, and provides a battery and electric equipment, the battery comprises a plurality of battery monomers and a liquid cooling structure, and the battery monomers are arranged at intervals; the liquid cooling structure comprises a liquid cooling main body part and a glue blocking strip connected to the liquid cooling main body part, the liquid cooling main body part is located between two adjacent battery monomers, and the liquid cooling main body part, the two adjacent battery monomers and the glue blocking strip enclose to form a gap filled with glue. According to the battery provided by the invention, the liquid cooling main body part of the liquid cooling structure is provided with the rubber blocking strip, so that the rubber blocking strip can be connected with the liquid cooling main body part in advance, and therefore, when the liquid cooling structure and the battery monomers are assembled and spliced, the procedure of additionally mounting the rubber blocking strip can be omitted, and the production and manufacturing efficiency of the battery can be improved to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular provides a battery and an electrical device. Background Art

[0002] The battery usually includes a plurality of battery cells and a liquid cooling mechanism disposed between two adjacent battery cells. Generally, the liquid cooling mechanism is made of metal material with high thermal conductivity. When each battery cell is cooled on a large surface, in order to solve the problem of rapid heat dissipation of the liquid cooling mechanism caused by direct contact between the edge of the liquid cooling mechanism and the battery box, an additional process is required, that is, a rubber stopper strip is added between two adjacent battery cells, and the space enclosed by the edge of the liquid cooling mechanism, the inner wall of two adjacent battery cells and the rubber stopper strip is filled with glue to prevent the liquid cooling mechanism from dissipating heat too quickly.

[0003] However, the increase in the above-mentioned processes also affects the battery production efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a battery and an electrical device, aiming to improve the efficiency problem in the battery production process.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] In a first aspect, an embodiment of the present application provides a battery, comprising:

[0007] A plurality of battery cells, each of which is arranged at intervals;

[0008] A liquid cooling structure, the liquid cooling structure includes a liquid cooling main body and a rubber barrier strip connected to the liquid cooling main body, the liquid cooling main body is located between two adjacent battery cells, and the liquid cooling main body, the two adjacent battery cells and the rubber barrier strip enclose a gap for colloid filling.

[0009] Beneficial effects of the embodiments of the present application: The battery provided in the present application is provided with a rubber strip on the liquid-cooling main body of the liquid-cooling structure, so that the rubber strip can be connected to the liquid-cooling main body in advance. In this way, when the liquid-cooling structure and the battery cell are assembled and spliced, the process of additionally installing the rubber strip can be omitted, thereby improving the efficiency of battery production and manufacturing to a certain extent.

[0010] In some embodiments, the rubber barrier strip includes a supporting portion connected to the liquid-cooled main body at one end and a partition portion connected to an end of the supporting portion away from the liquid-cooled main body. The liquid-cooled main body, two adjacent battery cells and the partition portion enclose the gap to be filled with colloid.

[0011] By adopting the above technical solution, the rubber blocking strip is divided into a supporting part connected to the liquid cooling main body and a partition part used to achieve rubber blocking. The connection between the two can be integrated and detachable. In this way, the liquid cooling main body, two adjacent battery cells and the partition part enclose a gap to be filled with colloid.

[0012] In some embodiments, one end of the support portion away from the baffle portion is integrally formed with the liquid-cooling main body.

[0013] By adopting the above technical solution, the support part is integrally formed on the liquid cooling main body, further eliminating the installation process of the rubber strip. During the battery assembly process, the liquid cooling structure and the battery cell can be directly assembled, and the corresponding gap can be filled with glue.

[0014] In some embodiments, the support portion is elastic, the battery cell has a bottom wall, and a surface of the blocking portion facing away from the support portion can be flush with the bottom wall.

[0015] By adopting the above technical solution, the supporting part can be pulled by increasing the filling amount of the colloid, so that the surface of the partition part away from the supporting part abuts against the inner wall of the battery box, that is, the surface of the partition part away from the supporting part can be flush with the bottom wall. In this way, the partition part has the abutment effect of the physical structure, which can reduce glue overflow.

[0016] In some embodiments, the battery cell has a bottom wall, and the barrier portion abuts against the bottom wall.

[0017] By adopting the above technical solution, the weight of the battery cell itself can be used to apply pressure to the barrier part to improve the airtightness of the gap, thereby further reducing the probability of glue overflow.

[0018] In some embodiments, two adjacent battery cells have two side walls disposed opposite to each other, and opposite ends of the barrier portion are respectively in contact with the corresponding side walls.

[0019] By adopting the above technical solution, the barrier portion and the side walls of two adjacent battery cells are in an interference fit positional relationship. Similarly, the colloid can be filled in the gap to reduce the risk of overflowing colloid.

[0020] In some embodiments, the rubber barrier strip further includes a fin portion, and at least one end of the barrier portion is provided with the fin portion, and the fin portion is used to increase the contact area between the barrier portion and the side wall.

[0021] By adopting the above technical solution, a fin portion is provided on the end of the barrier portion to increase the contact area between the barrier portion and the side wall of the battery cell, so as to further reduce the risk of glue overflow.

[0022] In some embodiments, the barrier portion is elastic.

[0023] By adopting the above technical solution, the matching accuracy of the distance between the barrier portion and the side walls of two adjacent battery cells can be reduced, thereby satisfying that the opposite ends of the barrier portion abut against the side walls.

[0024] In some embodiments, the blocking portion and the supporting portion are separately provided, and the blocking portion is detachably connected to an end of the supporting portion away from the liquid-cooling main body.

[0025] By adopting the above technical solution, the barrier part and the support part are detachably connected, and the size of the corresponding barrier part can be adjusted according to the actual size specifications of the battery cell to meet the corresponding barrier colloid requirements.

[0026] In a second aspect, an embodiment of the present application further provides an electrical device, comprising the battery described above.

[0027] It can be understood that the beneficial effects of the second aspect mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A schematic diagram of the structure of an electrical device provided in an embodiment of the utility model;

[0030] Figure 2 A schematic diagram of the structure of a battery provided in an embodiment of the utility model;

[0031] Figure 3 A schematic diagram of a partial structure of a battery provided in an embodiment of the utility model;

[0032] Figure 4 A schematic diagram of the structure of the liquid cooling structure provided by an embodiment of the utility model;

[0033] Figure 5 A cross-sectional view of a liquid cooling structure provided by an embodiment of the utility model;

[0034] Figure 6 for Figure 5 The enlarged view of point A in the middle;

[0035] Figure 7This is a left side view of the battery provided in Example 1 of the utility model;

[0036] Figure 8 for Figure 7 The enlarged view of point B in the middle;

[0037] Fig. 9 A left side view of a battery provided in Embodiment 2 of the present utility model;

[0038] Fig.10 for Fig. 9 Enlarged view of point C in the middle.

[0039] Among them, the reference numerals in the figure are:

[0040] 10000, electrical equipment; 1000, controller; 2000, motor;

[0041] 3000, battery; 3001, battery box; 30011, first part; 30012, second part;

[0042] 100, battery cell; 200, liquid cooling structure; 100a, gap; 100b, bottom wall; 100c, side wall;

[0043] 201, liquid cooling main body;

[0044] 202, rubber strip; 2021, supporting portion; 2022, partition portion; 2023, fin portion. DETAILED DESCRIPTION

[0045] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0046] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] Batteries are usually composed of a plurality of battery cells arranged in combination. In order to improve the performance of each battery cell during use, a liquid cooling plate is usually provided between two adjacent battery cells to lower the battery cells, especially the battery cells located in the middle.

[0050] Here, the liquid cooling plate is mostly made of metal material. In order to reduce the contact between the liquid cooling plate and the battery box, which leads to the problem of too fast heat dissipation of the liquid cooling plate, it is necessary to fill glue between the outer edge of the liquid cooling plate and the inner wall of the battery box. In addition, in order to fix the colloid, an additional process is required in the battery assembly process, that is, to set a glue blocking structure between two adjacent battery cells to reduce the probability of glue overflow.

[0051] However, the increase in the above-mentioned processes also reduces the efficiency of battery assembly, and the battery production efficiency is also lower.

[0052] In view of this, the present application provides a battery, in which a rubber strip is arranged on the liquid-cooling main body of the liquid-cooling structure. Then, when the liquid-cooling structure is installed between two adjacent battery cells, the rubber strip is also simultaneously located between the two battery cells. Therefore, a process of arranging the rubber strip between two adjacent battery cells can be reduced, which simplifies the battery assembly process to a certain extent, reduces the number of processes, and improves the battery production efficiency.

[0053] The embodiment of the present application provides a kind of electric equipment 10000 which can be applied to vehicles, mobile phones, portable devices, laptops, ships, spacecrafts, electric tools, etc. using the above-mentioned battery 3000 as a power source. Among them, the vehicle can be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc.; the spacecraft includes airplanes, rockets, space shuttles and spacecrafts, etc.; the electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, electric airplane toys, etc.; the electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools and iron electric tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators and electric planers, etc.

[0054] The battery 3000 described in the embodiment of the present application is not limited to the electrical equipment 10000 described above, but can also be applied to all devices using the battery 3000. However, for the sake of simplicity, the following embodiments are described using electric vehicles as examples.

[0055] For example, see Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle according to an embodiment of the present application. The vehicle may be a fuel vehicle, a gas vehicle or a new energy vehicle. The new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 3000, a controller 1000 and a motor 2000 may be provided inside the vehicle, and the controller 1000 is used to control the battery 3000 to supply power to the motor 2000. For example, a battery 3000 may be provided at the bottom, front or rear of the vehicle. The battery 3000 may be used to power the vehicle. For example, the battery 3000 may be used as an operating power source for the vehicle, for the circuit system of the vehicle, for example, for the working power requirements during the start-up, navigation and operation of the vehicle. In another embodiment of the present application, the battery 3000 may be used not only as an operating power source for the vehicle, but also as a driving power source for the vehicle, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle.

[0056] The battery 3000 mentioned in the embodiment of the present application refers to a single physical module including one or more battery cells 100 to provide higher voltage and capacity. Figure 2, the battery 3000 may include a plurality of battery cells 100. The number of battery cells 100 and the connection between the battery cells 100 can be set as required to meet different power requirements. Specifically, a plurality of battery cells 100 can be connected in series, in parallel, or in mixed connection, and mixed connection refers to a mixture of series connection and parallel connection so that the battery 3000 has a larger capacity or power. Optionally, a plurality of battery cells 100 can be connected in series, in parallel, or in mixed connection to form a battery module, and a plurality of battery modules can be connected in series, in parallel, or in mixed connection to form a battery 3000. In other words, a plurality of battery cells can directly form a battery 3000, or they can first form a battery module, and then the battery module can form a battery 3000.

[0057] The battery cell 100 includes an electrode assembly and an electrolyte. The electrode assembly is composed of a positive electrode sheet, a negative electrode sheet and a separator. The battery cell 100 mainly relies on the movement of metal ions between the positive electrode sheet and the negative electrode sheet to work. The positive electrode sheet includes a positive electrode collector and a positive electrode active material layer. The positive electrode active material layer is coated on the surface of the positive electrode collector. The current collector not coated with the positive electrode active material layer protrudes from the current collector coated with the positive electrode active material layer. The current collector not coated with the positive electrode active material layer is stacked as a positive electrode tab. For the convenience of description, the tab is referred to as the positive electrode tab and / or the negative electrode tab below.

[0058] In the present application, the battery cell 100 includes but is not limited to a lithium-ion secondary battery cell, a lithium-ion primary battery cell, a lithium-sulfur battery cell, a sodium-lithium-ion battery cell, a sodium-ion battery cell or a magnesium-ion battery cell. The battery cell may be cylindrical, flat, rectangular or other shapes. The battery cell 100 is generally divided into three types according to the packaging method: cylindrical battery cells, square battery cells and soft-pack battery cells.

[0059] The battery 3000 further includes a battery box 3001, wherein the battery box 3001 has a storage space inside, and a plurality of battery cells are stored in the storage space. Figure 2 As shown, the battery box 3001 may include two parts, which are respectively referred to as the first part 30011 and the second part 30012. The first part 30011 and the second part 30012 may be connected by snapping, bonding, etc. to form a receiving space. A plurality of battery cells are connected in parallel, in series, or in a mixed combination and are placed in a box formed by connecting the first part 30011 and the second part 30012. The shapes of the first part 30011 and the second part 30012 may be determined according to the shape formed by the combination of a plurality of battery cells.

[0060] The battery case 3001 is used to protect at least one battery cell 100 , thereby reducing the influence of liquid or other foreign matter outside the battery 3000 on the charging or discharging of at least one battery cell 100 .

[0061] Please refer to Figures 3 to 6 , Figure 8 , Figure 3 A schematic diagram of a partial structure of a battery provided in an embodiment of the present application; Figure 4 This is a structural schematic diagram of a liquid cooling structure provided in an embodiment of the present application. The embodiment of the present application provides a battery 3000 including a plurality of battery cells 100 and a liquid cooling structure 200 .

[0062] The battery cells 100 are arranged at intervals;

[0063] The liquid cooling structure 200 includes a liquid cooling body 201 and a rubber strip 202 connected to the liquid cooling body 201. The liquid cooling body 201 is located between two adjacent battery cells 100. The liquid cooling body 201, the two adjacent battery cells 100 and the rubber strip 202 enclose a gap for colloid filling.

[0064] It is understandable that each battery cell 100 needs to generate heat during operation. Arranging the battery cells 100 at intervals is beneficial to the arrangement of the liquid cooling structure 200 and can also increase the heat exchange area of ​​the battery cells 100 .

[0065] For example, for a plurality of elongated battery cells 100, each elongated battery cell 100 is arranged at intervals along its own width direction. In this way, when heat exchange is performed with the liquid cooling structure 200, the maximum outer surface of the elongated battery cell 100 can contact the liquid cooling structure 200, thereby greatly improving the heat exchange efficiency.

[0066] The liquid cooling body 201 of the liquid cooling structure 200 may be a water cooling plate or a liquid-solid hybrid cooling plate. The specific structure of the liquid cooling body 201 may refer to the harmonica pipe structure.

[0067] The adhesive blocking strip 202 is disposed between two adjacent battery cells 100 to block the adhesive filling in the gap 100 a to reduce the risk of adhesive overflow.

[0068] Here, the rubber strip 202 is connected to the liquid cooling main body 201, that is, the two are connected when the battery is assembled. The connection between the rubber strip 202 and the liquid cooling main body 201 can be an integral connection or a detachable connection.

[0069] The material of the rubber strip 202 can be colloid, and the material of the liquid cooling main body 201 can be metal, and the two can be connected in one piece by in-mold injection molding. In this way, when the battery is assembled, when the liquid cooling main body 201 is completed, the rubber strip 202 also completes the corresponding layout action, thereby eliminating the process of arranging the rubber strip 202 again. After the gap 100a is formed, the glue can be filled directly, which shortens the battery assembly time and improves the battery production efficiency.

[0070] Alternatively, the rubber strip 202 can also be connected to the liquid cooling main body 201 by plugging, snapping or bonding, which can also meet the requirement of reducing the number of steps brought about by the advance setting of the rubber strip 202. That is, the assembled incoming liquid cooling structure 200 also has the rubber strip 202, and the glue can be directly filled after the gap 100a is formed, which shortens the battery assembly time and improves the battery production efficiency.

[0071] For example, Figure 8 As shown, the liquid-cooled main body 201 has a side surface in contact with the battery cell 100 and an end surface connecting two adjacent side surfaces. The rubber strip 202 is arranged on the end surface of the liquid-cooled main body 201. When the side surface of the liquid-cooled main body 201 contacts two adjacent battery cells 100, the end surface of the liquid-cooled main body 201 faces the battery case. In this way, the end surface of the liquid-cooled main body 201, the outer wall of the two adjacent battery cells 100 and the rubber strip 202 enclose a gap 100a for colloid filling.

[0072] The battery provided in the present application is provided with a rubber strip 202 on the liquid-cooling main body 201 of the liquid-cooling structure 200, so that the rubber strip 202 can be connected to the liquid-cooling main body 201 in advance. In this way, when the liquid-cooling structure 200 and the battery cell 100 are assembled and spliced, the process of additionally installing the rubber strip 202 can be omitted, thereby improving the efficiency of battery production to a certain extent.

[0073] Please refer to Figure 5 and Figure 6 , Figure 8 In some embodiments, the rubber strip 202 includes a support portion 2021 connected to the liquid-cooled main body 201 at one end and a barrier portion 2022 connected to an end of the support portion 2021 away from the liquid-cooled main body 201. The liquid-cooled main body 201, two adjacent battery cells 100 and the barrier portion 2022 enclose a gap 100a for colloid filling.

[0074] It can be understood that the support part 2021 plays a corresponding connecting role, and is used to connect the liquid-cooled main body 201 and the baffle part 2022. Here, the material of the support part 2021 can be the same as that of the liquid-cooled main body 201, so as to meet the requirement of being integrally formed with the liquid-cooled main body 201, or the material of the support part 2021 can also be rubber or resin, etc., which can also meet the requirement of being integrally formed with the liquid-cooled main body 201, or can also meet the requirement of being detachably connected with the liquid-cooled main body 201. Specifically, the support part 2021 can be a plate-like structure, a sheet-like structure or a strip-like structure, and the plane where the support part 2021 is located is parallel or approximately parallel to the outer surface of the battery cell 100.

[0075] The barrier portion 2022 is used to block the colloid, and is surrounded by the liquid-cooled main body 201 and two adjacent battery cells 100 to form a gap 100a. Since the barrier portion 2022 is in direct contact with the battery cell 100, in order to reduce damage to the battery cell 100, the barrier portion 2022 is usually made of an elastic material. For example, the material of the barrier portion 2022 can be rubber, resin, and plastic, etc., so as to meet the requirements of flexible connection with the battery cell 100. Therefore, the material of the support portion 2021 can be the same as that of the barrier portion 2022, or it can be different from the material of the barrier portion 2022. Specifically, the barrier portion 2022 can be a plate-like structure, a block-like structure, or a sheet-like structure, and the plane where the barrier portion 2022 is located is perpendicular or approximately perpendicular to the outer surface of the battery cell 100. In this way, the cross-sectional shape of the barrier strip 202 is similar to a "T" shape.

[0076] For example, the material of the support portion 2021 is the same as that of the barrier portion 2022 , and both are made of rubber, and can be integrally formed by injection molding. Therefore, both the support portion 2021 and the barrier portion 2022 have a certain elasticity to meet the abutment requirement of the barrier portion 2022 against two adjacent battery cells 100 .

[0077] In summary, the rubber barrier strip 202 is divided into a supporting portion 2021 connected to the liquid-cooled main body 201 and a partition portion 2022 for realizing the rubber barrier. The connection between the two can be integrated and detachable. In this way, the liquid-cooled main body 201, two adjacent battery cells 100 and the partition portion 2022 enclose a gap 100a for the colloid to fill.

[0078] In some embodiments, one end of the support portion 2021 away from the blocking portion 2022 is integrally formed with the liquid-cooling main body 201 .

[0079] It can be understood that the material of the support part 2021 can be the same as that of the liquid-cooled main body 201. For example, both materials are aluminum alloy, magnesium alloy or aluminum-magnesium alloy, etc. Therefore, the support part 2021 can be integrally formed with the liquid-cooled main body 201 through an integral casting or stamping process.

[0080] Alternatively, the material of the support portion 2021 may be different from that of the liquid-cooled main portion 201. For example, the material of the support portion 2021 is rubber, resin, plastic, etc., and the material of the liquid-cooled main portion 201 is a metal alloy. Then, the two can be integrally formed through an in-mold injection molding process.

[0081] The material of the blocking portion 2022 may be the same as that of the supporting portion 2021 , or the two materials may be different, and the material may be selected according to a specific usage scenario.

[0082] In summary, the support portion 2021 is integrally formed on the liquid cooling main body 201, further eliminating the installation process of the rubber strip 202. During the battery assembly process, the incoming liquid cooling structure 200 includes the rubber strip 202, and the liquid cooling structure 200 and the battery cell 100 can be directly assembled, and the gap 100a formed by the assembly can be used for filling with glue.

[0083] Please refer to Figure 7 and Figure 8 In some embodiments, the support portion 2021 is elastic, the battery cell 100 has a bottom wall 100 b , and the surface of the barrier portion 2022 away from the support portion 2021 can be flush with the bottom wall 100 b .

[0084] It can be understood that the support part 2021 is elastic, so the material of the support part 2021 is a flexible material such as rubber, resin or plastic. When the amount of colloid filled in the gap 100a is large, it can support the partition part 2022 to gradually move away from the liquid cooling main body 201 until it abuts against the inner wall of the battery box.

[0085] The barrier portion 2022 is located in the space enclosed by two adjacent battery cells 100 and does not extend beyond the bottom wall 100b of the battery cell 100. Therefore, when the amount of colloid filled in the gap 100a is large, the surface of the barrier portion 2022 away from the support portion 2021 is in contact with the inner wall of the battery box and can be flush with the bottom wall 100b of the battery cell 100.

[0086] Here, the bottom wall 100 b of the battery cell 100 refers to a wall portion that contacts the inner wall of the box when the battery cell 100 is placed in the box.

[0087] In summary, when the filling amount of the colloid increases and the support part 2021 is pulled, the surface of the partition part 2022 that is away from the support part 2021 after being subjected to heavy pressure abuts against the inner wall of the battery box, that is, the surface of the partition part 2022 that is away from the support part 2021 can be flush with the bottom wall 100b, so that the partition part 2022 has the abutment effect of a physical structure, which can reduce glue overflow.

[0088] Please refer to Fig. 9 and Fig.10 In some embodiments, the battery cell 100 has a bottom wall 100 b , and the barrier portion 2022 abuts against the bottom wall 100 b .

[0089] It can be understood that the barrier 2022 is located outside the space enclosed by two adjacent battery cells 100. When the battery is assembled, the bottom wall 100b of the battery cell 100 abuts against the barrier 2022. It can be understood that at least part of the barrier 2022 is located between the bottom wall 100b of the battery cell 100 and the inner wall of the box, that is, the gravity of the battery cell 100 is used to provide sealing pressure on the connection between the barrier 2022 and the bottom wall 100b.

[0090] Here, the bottom wall 100 b of the battery cell 100 refers to a wall portion that contacts the inner wall of the box when the battery cell 100 is placed in the box.

[0091] In summary, the weight of the battery cell 100 is used to apply pressure to the barrier portion 2022 to improve the airtightness of the gap 100 a , thereby further reducing the probability of glue overflow.

[0092] Please refer to Figure 8 In some embodiments, two adjacent battery cells 100 have two side walls 100 c disposed opposite to each other, and opposite ends of the barrier portion 2022 are respectively in contact with the corresponding side walls 100 c.

[0093] It can be understood that the side wall 100 c of the battery cell 100 refers to the wall portion corresponding to the adjacent battery cell 100 after the battery cell 100 is placed, and the wall portion of the battery cell 100 is also the wall portion in contact with the liquid-cooling main body 201 .

[0094] The barrier portion 2022 may be a plate-like structure, a block-like structure or a sheet-like structure. Therefore, the barrier portion 2022 has two oppositely disposed ends, and an interference fit is adopted between the two oppositely disposed ends of the barrier portion 2022 and the corresponding side wall 100c.

[0095] In summary, the barrier portion 2022 and the side walls 100 c of two adjacent battery cells 100 are in an interference fit relationship, so that the colloid can be filled in the gap 100 a to reduce the risk of overflowing colloid.

[0096] Please refer to Figure 8 In some embodiments, the rubber strip 202 further includes a fin portion 2023, and at least one end of the barrier portion 2022 is provided with a fin portion 2023, and the fin portion 2023 is used to increase the contact area between the barrier portion 2022 and the side wall 100c.

[0097] It can be understood that the fin portion 2023 can be a sheet-like structure with a large surface area, and the fin portion 2023 can be connected to the side wall 100c by attaching or pasting. Therefore, the fin portion 2023 can increase the contact area between the barrier portion 2022 and the side wall 100c.

[0098] Optionally, in order to improve the sealing and leak-proof performance at the gap 100a, fin portions 2023 are provided on both ends of the barrier portion 2022, thereby taking advantage of the larger contact area between the fin portion 2023 and the side wall 100c to reduce the risk of glue overflow.

[0099] Here, the material of the fin portion 2023 may be the same as that of the barrier portion 2022 , for example, both may be made of rubber, resin, and plastic.

[0100] In summary, the fin portion 2023 is disposed on the end of the barrier portion 2022 to increase the contact area between the barrier portion 2022 and the side wall 100 c of the battery cell 100 , so as to further reduce the risk of glue overflow.

[0101] In some embodiments, the barrier portion 2022 is elastic.

[0102] It is understandable that the barrier 2022 can be made of a flexible material to make it elastic. For example, the barrier 2022 can be made of rubber, resin, plastic, etc. Alternatively, the barrier 2022 can be made of a lightweight metal material, such as aluminum thin material, aluminum-magnesium thin material, etc.

[0103] In this way, when the partition portion 2022 is interference fit with the side wall 100c of two adjacent battery cells 100, the elastic partition portion 2022 can reduce the fitting accuracy of the spacing between the partition portion 2022 and the side wall 100c of two adjacent battery cells 100, especially the problem of unequal spacing between the side walls 100c of two adjacent battery cells 100 caused by the thickness difference of the liquid-cooling main body 201, so that the opposite ends of the partition portion 2022 are abutted against the side wall 100c.

[0104] In some embodiments, the blocking portion 2022 and the supporting portion 2021 are separately provided, and the blocking portion 2022 is detachably connected to an end of the supporting portion 2021 away from the liquid-cooling main body 201 .

[0105] It can be understood that the blocking portion 2022 and the supporting portion 2021 are two independently arranged components, which can be connected by corresponding connection methods when necessary.

[0106] For example, a snap-fitting protrusion is formed on the end of the support portion 2021 away from the liquid-cooling main body 201, and a snap-fitting recess matched with the snap-fitting protrusion is formed on the blocking portion 2022, that is, the two are detachably connected by snap-fitting connection.

[0107] For example, a plug-in portion is formed on the end of the support portion 2021 away from the liquid-cooling main body 201, and a plug-in hole matched with the plug-in portion is formed on the blocking portion 2022, that is, the two are detachably connected by plug-in connection.

[0108] In this way, the size of the barrier portion 2022 on the support portion 2021 is adjusted according to the actual size specification of the battery cell 100 to meet the corresponding requirement of blocking the colloid.

[0109] Please refer to Figures 3 to 8 In a specific embodiment, the present application provides a battery 3000 including a plurality of battery cells 100 and a liquid cooling structure 200 .

[0110] The battery cells 100 are arranged at intervals; the liquid cooling structure 200 includes a liquid cooling main body 201 and a rubber barrier strip 202 connected to the liquid cooling main body 201, the liquid cooling main body 201 is located between two adjacent battery cells 100, the rubber barrier strip 202 includes a support portion 2021 connected to the liquid cooling main body 201 at one end and a barrier portion 2022 connected to the end of the support portion 2021 away from the liquid cooling main body 201, the liquid cooling main body 201, the two adjacent battery cells 100 and the barrier portion 2022 enclose a gap 100a for colloid filling.

[0111] The support portion 2021 is elastic, the battery cell 100 has a bottom wall 100 b , and the surface of the barrier portion 2022 away from the support portion 2021 can be flush with the bottom wall 100 b .

[0112] Two adjacent battery cells 100 have two side walls 100 c disposed opposite to each other, and opposite ends of the barrier portion 2022 abut against the corresponding side walls 100 c respectively.

[0113] The rubber strip 202 further includes a fin portion 2023 . The fin portion 2023 is disposed at at least one end of the barrier portion 2022 . The fin portion 2023 is used to increase the contact area between the barrier portion 2022 and the side wall 100 c .

[0114] One end of the support portion 2021 away from the baffle portion 2022 is integrally formed with the liquid cooling main body 201 , and at the same time, the support portion 2021 and the baffle portion 2022 are also integrally formed.

[0115] In a second aspect, an embodiment of the present application further provides an electric device 10000 , comprising the above-mentioned battery 3000 .

[0116] Taking an electric vehicle as an example of an electrical device, a battery 3000, a controller 1000 and a motor 2000 are provided inside the vehicle, and the controller 1000 is used to control the battery 3000 to supply power to the motor 2000. For example, a battery 3000 may be provided at the bottom, front or rear of the vehicle. The battery 3000 may be used to supply power to the vehicle, for example, the battery 3000 may be used as an operating power source for the vehicle, for the circuit system of the vehicle, for example, for the working power requirements during the start-up, navigation and operation of the vehicle. In another embodiment of the present application, the battery 3000 may not only be used as an operating power source for the vehicle, but also as a driving power source for the vehicle, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle.

[0117] It can be understood that the beneficial effects of the second aspect mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here.

[0118] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery, characterized in that: include: A plurality of battery cells, each of which is arranged at intervals; A liquid cooling structure, the liquid cooling structure includes a liquid cooling main body and a rubber barrier strip connected to the liquid cooling main body, the liquid cooling main body is located between two adjacent battery cells, and the liquid cooling main body, the two adjacent battery cells and the rubber barrier strip enclose a gap for colloid filling.

2. The battery according to claim 1, characterized in that: The rubber barrier strip includes a support portion connected to the liquid cooling body at one end and a barrier portion connected to an end of the support portion away from the liquid cooling body. The liquid cooling body, two adjacent battery cells and the barrier portion enclose the gap for colloid filling.

3. The battery according to claim 2, characterized in that: One end of the support portion away from the blocking portion is integrally formed with the liquid cooling main body.

4. The battery according to claim 3, characterized in that: The support portion is elastic, the battery cell has a bottom wall, and a surface of the blocking portion facing away from the support portion can be flush with the bottom wall.

5. The battery according to claim 3, characterized in that: The battery cell has a bottom wall, and the barrier portion abuts against the bottom wall.

6. The battery according to claim 2, characterized in that: Two adjacent battery cells have two side walls arranged facing each other, and opposite ends of the barrier portion are respectively in contact with the corresponding side walls.

7. The battery according to claim 6, characterized in that: The rubber blocking strip further includes a fin portion, and at least one end of the blocking portion is provided with the fin portion, and the fin portion is used to increase the contact area between the blocking portion and the side wall.

8. The battery according to claim 7, characterized in that: The blocking portion is elastic.

9. The battery according to claim 2, characterized in that: The blocking portion and the supporting portion are arranged separately, and the blocking portion is detachably connected to an end of the supporting portion away from the liquid cooling main body.

10. An electrical equipment, characterized in that: Comprising the battery according to any one of claims 1 to 9.

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