Heat insulation assembly, battery and electric device

Abstract

The utility model provides a heat insulation assembly, a battery and a power utilization device. The heat insulation assembly comprises a heat insulation main body, a bonding layer and a separation layer, the heat insulation body is provided with connecting faces and side wall faces, the connecting faces are arranged in pairs and distributed at intervals in the first direction, and the side wall faces are connected between the connecting faces arranged in pairs. The bonding layer is arranged on the connecting surface and is connected with the heat insulation main body; the separating layer covers the side, away from the heat insulation body, of the bonding layer. Wherein the heat insulation main body is provided with a notch, the notch is formed by sinking the side wall face into the heat insulation main body, and the orthographic projection of the separation layer in the first direction covers the notch. According to the heat insulation assembly provided by the embodiment of the invention, the separation layer can be stripped conveniently.

Description

Technical Field

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

[0002] The structure of the thermal insulation component generally includes a thermal insulation body and a release paper. The release paper needs to be peeled off before the thermal insulation component is used.

[0003] However, in the related art, during the process of peeling off the release paper, a clamp is required to clamp the release paper and then separate the release paper from the heat insulation body, which makes the heat insulation assembly inconvenient to use. Utility Model Content

[0004] In view of the above problems, the present application provides a thermal insulation component, a battery and an electrical device, wherein the thermal insulation component is easy to use.

[0005] An embodiment of the present application provides a thermal insulation component, which includes a thermal insulation body, an adhesive layer, and a separation layer. The thermal insulation body has a connecting surface and a side wall surface, the connecting surfaces are arranged in pairs and spaced apart along a first direction, and the side wall surface is connected between the connecting surfaces arranged in pairs. The adhesive layer is arranged on the connecting surface and connected to the thermal insulation body; the separation layer covers the side of the adhesive layer away from the thermal insulation body. A cutout is arranged on the thermal insulation body, the cutout is formed by the side wall surface being recessed into the thermal insulation body, and the orthographic projection of the separation layer in the first direction covers the cutout.

[0006] The thermal insulation assembly provided by the embodiment of the present application is convenient for use by providing a separation layer and an adhesive layer, and can prevent the thermal insulation assembly from adhering to other positions when not in use. The incision is formed by the side wall facing the inner depression of the thermal insulation body, and the orthographic projection of the separation layer in the first direction covers the incision, so that the mass of the material at the thermal insulation body where the incision is located is less than the mass of the thermal insulation body without the incision, and the elastic modulus of the thermal insulation body at the incision is larger than the elastic modulus at other positions of the thermal insulation body. When the separation layer is separated from the adhesive layer along the first direction, due to the larger elastic modulus of the thermal insulation body at the incision, the deformation of the thermal insulation body at the incision becomes larger relative to the deformation of the thermal insulation body at other positions. When the separation layer is peeled off, due to the presence of the incision, the separation layer is easy to be peeled off from the adhesive layer.

[0007] In some embodiments, along the first direction, orthographic projections of the connection surfaces arranged in pairs at least partially overlap.

[0008] The thermal insulation assembly provided in the embodiment of the present application has an arrangement in which the orthographic projections of the connecting surfaces arranged in pairs at least partially overlap, so that the shape of the thermal insulation assembly is relatively regular. When making a thermal insulation assembly with a regular shape, the manufacturing process of the thermal insulation assembly can be simplified, and the thermal insulation assembly can also block heat uniformly when in use. In addition, as the degree of overlap of the orthographic projections of the connecting surfaces arranged in pairs increases, the misalignment area of ​​the thermal insulation assembly on both sides along the first direction becomes smaller and smaller. For example, if the thermal insulation body of the peeling separation layer is pasted between the battery cells on both sides, the battery cells can be arranged more compactly, which is beneficial to improving the energy density of the battery.

[0009] In some embodiments, the insulation body is provided with cutouts on both sides of the second direction, and adhesive layers are provided on the connecting surfaces arranged in pairs, each adhesive layer is covered with a separation layer, each separation layer is arranged opposite to one of the cutouts and covers the cutout in its orthographic projection in the first direction, and the first direction is arranged to intersect with the second direction.

[0010] The thermal insulation component provided in the embodiment of the present application is provided with incisions on both sides of the second direction of the thermal insulation body, and each connecting surface is provided with an adhesive layer, and each adhesive layer is provided with a separation layer, which is conducive to peeling off the separation layer of each connecting surface, so that the adhesive layer of the connecting surface arranged in pairs is exposed, which is conducive to bonding a thermal insulation component between two components arranged in pairs. The multiple sticking positions of the thermal insulation component increase the adhesion firmness of the thermal insulation component during use and reduce the risk of slipping. In addition, the incisions are located on both sides of the thermal insulation body in the second direction, and the separation layers can be peeled off from both sides. If the incisions are located on the same side, when peeling off the separation layers, it is easy for the thermal insulation body on the same side to be subjected to force and elastically deformed at the same time, and it is easy to offset the elastic deformation force on the same side. Therefore, the setting of the incision provided in the embodiment of the present application can reduce the probability of offsetting the peeling force on the same side of the thermal insulation body and reduce the difficulty of peeling.

[0011] In some embodiments, the connection surfaces arranged in pairs include a first connection surface and a second connection surface, the first connection surface and the second connection surface are arranged in parallel, and the first connection surface, the second connection surface, and the separation layer have matching sizes and are rectangular.

[0012] The thermal insulation assembly provided in the embodiment of the present application has a separation layer and a first connection surface and a second connection surface that are all rectangular in shape, so that the separation layer can cover both the first connection surface and the second connection surface, and the first connection surface and the second connection surface of the thermal insulation body are rectangular in shape. If the thermal insulation body with the separation layer peeled off is adhered to a square battery cell, it can be adapted to the connection requirements of the square battery cell, ensuring the thermal insulation effect and connection strength, and also making the thermal insulation body and the separation layer have better stability, and are not easily deformed and twisted during transportation, and the thermal insulation assembly is easy to manufacture, cut and process.

[0013] In some embodiments, the cut surface formed by the cutout on the heat insulation body includes an inclined surface, one end of the inclined surface intersects with the first connecting surface, and the other end of the inclined surface intersects with the second connecting surface.

[0014] The thermal insulation component provided in the embodiment of the present application is convenient for preparation due to the setting of the inclined surface. The thermal insulation component can be obtained by cutting with a processing part (such as a cutter), and the preparation is simple and the process is simple.

[0015] In some embodiments, the cut surface formed by the incision on the insulation body includes a first surface and a second surface, the first surface is intersected with one end of the second surface, the other end of the first surface extends to the first connecting surface, and the other end of the second surface extends to the second connecting surface or is spaced from the second connecting surface.

[0016] The thermal insulation component provided in the embodiment of the present application has a cross-section formed on the thermal insulation body by an incision, including a first surface and a second surface, so that the cross-section shape of the incision is more flexible, and the shape of the cross-section can be changed by adjusting the positions of the first surface and the second surface. In addition, if the separation layer is peeled off on both sides on the same side of the thermal insulation component, the effect of the offsetting force of the thermal insulation body on the same side can be reduced, thereby simplifying the production process of the isolation component and reducing the production cost.

[0017] In some embodiments, the angle between the first surface and the second surface is acute.

[0018] The thermal insulation assembly provided in the embodiment of the present application has an acute angle between the first surface and the second surface. Compared with an inclined surface where the cut surface is formed, the edge position of the cutout of the thermal insulation body has a larger deformation amount than the middle position of the thermal insulation body, making it easier to peel off the separation layer.

[0019] In some embodiments, the first surface and the second surface are perpendicular to each other, the first surface extends along a first direction to the first connecting surface, and the second surface extends along a second direction and is spaced apart from the first connecting surface and the second connecting surface.

[0020] The thermal insulation assembly provided in the embodiment of the present application, by setting the positions of the first surface and the second surface, makes the shape of the thermal insulation assembly adaptable to the surface of an L-shaped object to be installed, thereby expanding the use scenarios of the thermal insulation assembly. In addition, during the preparation process of the thermal insulation assembly, the L-shaped cross-section shape can be cut into two thermal insulation assemblies at one time, which can simplify the production process.

[0021] The embodiment of the present application provides a battery, including a battery cell and a heat insulation assembly. There are multiple battery cells, which are arranged along a first direction. The heat insulation assembly includes a heat insulation body and an adhesive layer. The heat insulation body has a connection surface and a side wall surface. The connection surfaces are arranged in pairs and arranged at intervals along the first direction. The side wall surface is connected between the connection surfaces arranged in pairs. The adhesive layer is arranged on the connection surface and connected to the heat insulation body. The heat insulation body is provided with a cutout, which is formed by the side wall surface being recessed into the heat insulation body. The heat insulation assembly is located between adjacent battery cells through the adhesive layer.

[0022] The battery provided in the embodiment of the present application includes a battery cell and a heat insulation component, which can effectively block the heat transfer between the battery cells, reduce the adverse effects of heat on the battery cells, effectively keep the temperature of the battery within a preset range, maintain the performance and life of the battery, and simplify the preparation process of the battery. At the same time, the setting of the incision makes it easier to peel off the separation layer from the adhesive layer when the isolation component is connected to the battery cell because the elastic modulus of the heat insulation body at the incision is larger than the elastic modulus at other positions of the heat insulation body.

[0023] An embodiment of the present application provides an electrical device, comprising a battery provided by any of the above embodiments.

[0024] The electric device provided in the embodiment of the present application includes the setting of a heat insulation component, which can effectively suppress the diffusion of heat when the battery inside the electric device is in thermal runaway, delay the occurrence of accidents, and simplify the assembly process of the electric device.

[0025] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0027] Figure 1 It is a structural schematic diagram of a vehicle embodiment of the present application;

[0028] Figure 2 It is a structural schematic diagram of a battery embodiment of the present application;

[0029] Figure 3is an exploded schematic diagram of an embodiment of a thermal insulation assembly of the present application;

[0030] Figure 4 is a front view schematic diagram of an embodiment of a heat insulation assembly of the present application;

[0031] Figure 5 This application Figure 4 A is an enlarged schematic diagram;

[0032] Figure 6 is a top view schematic diagram of an embodiment of a thermal insulation assembly of the present application;

[0033] Figure 7 is a side view schematic diagram of another embodiment of the thermal insulation assembly of the present application;

[0034] Figure 8 It is a side view schematic diagram of another embodiment of the thermal insulation assembly of the present application.

[0035] The reference numerals in the specific implementation manner are as follows:

[0036] 1 battery; 2 motor; 3 controller;

[0037] 10 heat insulation component; X first direction; Y second direction;

[0038] 100 heat insulation body;

[0039] 110 connection surface;

[0040] 111 first connecting surface; 1111 first edge; 1112 second edge;

[0041] 112 second connecting surface; 1121 third edge; 1122 fourth edge;

[0042] 120 side wall surface;

[0043] 130 incision; 131 cut surface; 1311 inclined surface; 1312 first surface; 1313 second surface;

[0044] 200 adhesive layer;

[0045] 300 separation layer;

[0046] 20 processing equipment;

[0047] 30 battery cells. DETAILED DESCRIPTION

[0048] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0049] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in the embodiments of the present application should have the common meanings understood by technicians in the field to which the embodiments of the present application belong.

[0050] In the description of the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0051] In addition, the technical terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0052] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" 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, and 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 embodiments of the present application can be understood according to the specific circumstances.

[0053] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0054] At present, from the perspective of market development, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0055] In the related art, during the process of charging and discharging a battery cell, heat is dissipated at the same time, and the heat will diffuse to other battery cells around the battery cell, thereby adversely affecting the performance of the battery cell. Therefore, a thermal insulation component will be installed between the battery cells. Of course, the thermal insulation component is not limited to use between battery cells, but is also applicable to other usage scenarios. The structure of the thermal insulation component includes a thermal insulation body and a separation layer. The separation layer needs to be peeled off before the thermal insulation component is used. However, in the related art, in the process of peeling off the separation layer, a clamp is required to clamp the separation layer and then separate the separation layer from the thermal insulation body, which makes the thermal insulation component inconvenient to use.

[0056] In order to alleviate the inconvenience of using the thermal insulation assembly, the study found that the above problem can be solved by improving the structure of the thermal insulation assembly.

[0057] Based on the above considerations, in order to solve the problem of alleviating the inconvenience of using the thermal insulation component, a thermal insulation component is proposed, which includes a thermal insulation body, an adhesive layer and a separation layer. The thermal insulation body has a connecting surface and a side wall surface, the connecting surfaces are arranged in pairs and spaced along the first direction, and the side wall surface is connected between the connecting surfaces arranged in pairs. The adhesive layer is arranged on the connecting surface and connected to the thermal insulation body; the separation layer covers the side of the adhesive layer away from the thermal insulation body. Among them, a cutout is arranged on the thermal insulation body, and the cutout is formed by the side wall surface being recessed into the thermal insulation body, and the orthographic projection of the separation layer in the first direction covers the cutout.

[0058] In such a thermal insulation component, the incision is formed by a depression in the thermal insulation body facing the side wall and the separation layer's orthographic projection in the first direction covers the incision, so that the mass of the material at the thermal insulation body where the incision is located is less than the mass of the thermal insulation body without the incision. The elastic modulus of the thermal insulation body where the incision is set is larger than the elastic modulus at other positions of the thermal insulation body. When the separation layer is separated from the adhesive layer along the first direction, due to the larger elastic modulus of the thermal insulation body at the incision, the deformation of the thermal insulation body at the incision becomes larger relative to the deformation of the thermal insulation body at other positions. When the separation layer is peeled off, due to the presence of the incision, the separation layer is facilitated to be peeled off from the adhesive layer, thereby alleviating the problem of inconvenience in using the thermal insulation component.

[0059] The electrical devices mentioned in the embodiments of the present application may be vehicles, mobile phones, portable devices, laptop computers, ships, spacecraft, electric toys, and electric tools, etc. The vehicle may be a fuel vehicle, a gas vehicle, or a new energy vehicle, and the new energy vehicle may 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, and electric airplane toys, etc.; the electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools, and railway electric tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc. The embodiments of the present application do not impose any special restrictions on the above-mentioned electrical devices.

[0060] For the convenience of description, the following embodiments are described by taking the electric device as a vehicle as an example.

[0061] Figure 1 It is a structural schematic diagram of a vehicle embodiment of the present application.

[0062] like Figure 1 As shown, 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. A battery 1 is arranged inside the vehicle, and the battery 1 can be arranged at the bottom, head or tail of the vehicle. The battery 1 can be used to power the vehicle, for example, the battery 1 can be used as an operating power source for the vehicle. The vehicle can also include a controller 3 and a motor 2, and the controller 3 is used to control the battery 1 to power the motor 2, for example, for the starting, navigation and working power requirements of the vehicle during driving.

[0063] Figure 2 It is a schematic structural diagram of a battery embodiment of the present application.

[0064] like Figure 2 As shown, the battery 1 mentioned in the embodiment of the present application refers to a single physical module including one or more battery cells 30 to provide higher voltage and capacity. For example, the battery 1 mentioned in the present application may include a battery module or a battery pack. The battery 1 generally includes a box for encapsulating one or more battery cells 30. The box can prevent liquid or other foreign matter from affecting the charging or discharging of the battery cells 30.

[0065] The battery 1 mentioned in the embodiment of the present application refers to a single physical module including one or more battery cells 30 to provide higher voltage and capacity.

[0066] In some embodiments, the battery 1 may be a battery module. When there are multiple battery cells 30 , the multiple battery cells 30 are arranged and fixed to form a battery module.

[0067] In some embodiments, the battery 1 may be a battery pack, which includes a box and battery cells 30 , wherein the battery cells 30 or battery modules are accommodated in the box.

[0068] In the embodiment of the present application, the battery cell 30 may be a secondary battery cell. A secondary battery cell refers to a battery cell 30 that can be continuously used by activating active materials by charging after the battery cell 30 is discharged.

[0069] The battery cell 30 can be a lithium-ion battery cell, a sodium-ion battery cell, a sodium-lithium-ion battery cell, a lithium metal battery cell, a sodium metal battery cell, a lithium-sulfur battery cell, a magnesium-ion battery cell, a nickel-hydrogen battery cell, a nickel-cadmium battery cell, a lead-acid battery cell, etc., which is not limited in the embodiments of the present application.

[0070] The battery cell 30 generally includes an electrode assembly. The electrode assembly includes a positive electrode and a negative electrode. During the charge and discharge process of the battery cell 30, active ions (such as lithium ions) are inserted and removed back and forth between the positive electrode and the negative electrode.

[0071] In some embodiments, the battery cell 30 may include a housing. The housing is used to encapsulate components such as the electrode assembly and the electrolyte. The housing may be a steel housing, an aluminum housing, a plastic housing (such as polypropylene), a composite metal housing (such as a copper-aluminum composite housing), or an aluminum-plastic film.

[0072] As an example, the battery cell 30 may be a cylindrical battery cell, a prismatic battery cell, a soft-pack battery cell, or a battery cell 30 of other shapes. The prismatic battery cell includes a square-shell battery cell, a blade-shaped battery cell, and the like.

[0073] Figure 3 is an exploded schematic diagram of an embodiment of a heat insulation assembly of the present application, Figure 4 is a front view schematic diagram of an embodiment of a heat insulation assembly of the present application, Figure 5 This application Figure 4 A is an enlarged schematic diagram of Figure 6 It is a top view schematic diagram of an embodiment of the thermal insulation assembly of the present application.

[0074] like Figures 3 to 6As shown, the embodiment of the present application provides a heat insulation component 10, which includes a heat insulation body 100, an adhesive layer 200 and a separation layer 300. The heat insulation body 100 has a connection surface 110 and a side wall surface 120, the connection surfaces 110 are arranged in pairs and are spaced along the first direction X, and the side wall surface 120 is connected between the connection surfaces 110 arranged in pairs. The adhesive layer 200 is arranged on the connection surface 110 and connected to the heat insulation body 100; the separation layer 300 covers the side of the adhesive layer 200 away from the heat insulation body 100. Among them, the heat insulation body 100 is provided with a cutout 130, which is formed by the side wall surface 120 being recessed into the heat insulation body 100, and the orthographic projection of the separation layer 300 in the first direction X covers the cutout 130.

[0075] The cut 130 may be formed starting from the side wall surface 120 by removing material from the isolation body, and may be prepared by cutting. The cut 130 may be spaced apart from the connection surface 110 in the first direction X, or may be connected to the connection surface 110 .

[0076] The shape of the cutout 130 includes a linear cutout 130 , a V-shaped cutout 130 , an L-shaped cutout 130 , and the like.

[0077] The connecting surfaces 110 arranged in pairs may extend in the same direction or in different directions. Optionally, the connecting surfaces 110 are arranged in parallel and extend in a direction perpendicular to the first direction X.

[0078] The shape of the adhesive layer 200 may be consistent with or inconsistent with the shape of the connecting surface 110. Optionally, the separation layer 300 may be consistent with the shape of the adhesive layer 200, and the size of the adhesive layer 200 may be smaller than the size of the connecting surface 110, and it is necessary to ensure that the orthographic projection of the separation layer 300 in the first direction X covers the cutout 130.

[0079] The separation layer 300 includes but is not limited to laminated release paper, glassine release paper, etc. When the thermal insulation assembly 10 is used, the separation layer 300 is first separated from the adhesive layer 200, and then the thermal insulation body 100 is bonded to the bonding position through the adhesive layer 200.

[0080] Exemplarily, the separation layer 300 may be peeled off by using a processing device 20 , and the processing device 20 includes a negative pressure adsorption device, a magnetic adsorption device, and the like.

[0081] In some embodiments, the processing device 20 includes a suction cup assembly, and the processing device 20 is extended along the first direction X. Along the first direction X, the orthographic projection of the processing device 20 covers the orthographic projection of the incision 130 .

[0082] The thermal insulation component 10 provided in the embodiment of the present application facilitates the use of the thermal insulation component 10 by providing the separation layer 300 and the adhesive layer 200 , and can prevent the thermal insulation component 10 from adhering to other locations when the thermal insulation component 10 is not in use. The cutout 130 is formed by the side wall surface 120 being recessed into the thermal insulation body 100, and the orthographic projection of the separation layer 300 in the first direction X covers the setting of the cutout 130, so that the mass of the material at the thermal insulation body 100 where the cutout 130 is located is less than the mass of the thermal insulation body 100 without the cutout 130, and the elastic modulus of the thermal insulation body 100 where the cutout 130 is set is larger than the elastic modulus at other positions of the thermal insulation body 100. When the separation layer 300 is separated from the adhesive layer 200 along the first direction X, due to the larger elastic modulus of the thermal insulation body 100 at the cutout 130, the deformation of the thermal insulation body 100 at the cutout 130 becomes larger relative to the deformation of the thermal insulation body 100 at other positions. When the separation layer 300 is peeled off, due to the existence of the cutout 130, the separation layer 300 is facilitated to be peeled off from the adhesive layer 200.

[0083] In some embodiments, along the first direction X, orthographic projections of the connection surfaces 110 arranged in pairs at least partially overlap.

[0084] The orthographic projections of the connection surfaces 110 arranged in pairs may completely overlap or partially overlap.

[0085] The thermal insulation component 10 provided in the embodiment of the present application has an arrangement in which the orthographic projections of the connection surfaces 110 arranged in pairs at least partially overlap, so that the shape of the thermal insulation component 10 is relatively regular. When making the thermal insulation component 10 with a regular shape, the manufacturing process of the thermal insulation component 10 can be simplified, and the thermal insulation component 10 can also block heat uniformly when in use. In addition, as the overlap degree of the orthographic projections of the connection surfaces 110 arranged in pairs increases, the misalignment area of ​​the thermal insulation component 10 on both sides of the first direction X becomes smaller and smaller. For example, if the thermal insulation body 100 of the peeling separation layer 300 is pasted between the battery cells 30 on both sides, the battery cells 30 can be arranged more compactly, which is beneficial to improve the energy density of the battery 1.

[0086] In some embodiments, the insulation body 100 is respectively provided with cutouts 130 on both sides of the second direction Y, and adhesive layers 200 are respectively provided on the connecting surfaces 110 arranged in pairs, and each adhesive layer 200 is covered with a separation layer 300, each separation layer 300 is arranged opposite to one of the cutouts 130 and covers the cutout 130 in the orthographic projection of the first direction X, and the first direction X is arranged to intersect with the second direction Y.

[0087] The heat insulation component 10 provided in the embodiment of the present application is provided with cutouts 130 on both sides of the heat insulation body 100 in the second direction Y, and each connection surface 110 is provided with an adhesive layer 200, and each adhesive layer 200 is provided with a separation layer 300, which is conducive to peeling off the separation layer 300 of each connection surface 110, so that the adhesive layer 200 of the connection surface 110 arranged in pairs is exposed, which is conducive to bonding a heat insulation component 10 between two components arranged in pairs. The multiple bonding positions of the heat insulation component 10 can increase the heat insulation component 10 in use. In addition, the cutouts 130 are located on both sides of the heat insulation body 100 in the second direction Y, so that each separation layer 300 can be peeled off from both sides. If the cutouts 130 are located on the same side, when peeling off the separation layers 300, it is easy for the heat insulation body 100 on the same side to be subjected to force and elastically deformed at the same time, so that the elastic deformation force on the same side can be offset. Therefore, the setting of the cutouts 130 provided in the embodiment of the present application can reduce the probability of offsetting the peeling force on the same side of the heat insulation body 100, thereby reducing the difficulty of peeling.

[0088] In some embodiments, the connection surfaces 110 arranged in pairs include a first connection surface 111 and a second connection surface 112. The first connection surface 111 and the second connection surface 112 are arranged in parallel. The first connection surface 111, the second connection surface 112 and the separation layer 300 are matched in size and are rectangular.

[0089] The thermal insulation component 10 provided in the embodiment of the present application has a rectangular shape of the separation layer 300 and the first connection surface 111 and the second connection surface 112, so that the separation layer 300 can cover the first connection surface 111 and the second connection surface 112, and the first connection surface 111 and the second connection surface 112 of the thermal insulation body 100 are rectangular. If the thermal insulation body 100 with the separation layer 300 peeled off is adhered to a square battery cell, it can be adapted to the connection requirements of the square battery cell, ensuring the thermal insulation effect and connection strength, and also making the thermal insulation body 100 and the separation layer 300 have better stability, and are not easy to deform and twist during transportation, and the thermal insulation component 10 is easy to manufacture, cut and process.

[0090] In some embodiments, the cut surface 131 formed by the cutout 130 on the heat insulating body 100 includes an inclined surface 1311 , one end of the inclined surface 1311 intersects with the first connecting surface 111 , and the other end of the inclined surface 1311 intersects with the second connecting surface 112 .

[0091] The angle between the inclined surface 1311 and at least one of the first connecting surface 111 and the second connecting surface 112 includes an acute angle, and the angle range of the acute angle includes 30 degrees to 50 degrees.

[0092] The thermal insulation component 10 provided in the embodiment of the present application is convenient for preparation of the thermal insulation component 10 by setting the inclined surface 1311. The thermal insulation component 10 can be obtained by cutting with a processing part (such as a cutter), which is easy to prepare and has a simple process.

[0093] Figure 7 is a side view schematic diagram of another embodiment of the thermal insulation assembly of the present application, Figure 8 It is a side view schematic diagram of another embodiment of the thermal insulation assembly of the present application.

[0094] like Figure 7 , 8 As shown, in some embodiments, the cut surface 131 formed by the incision 130 on the insulation body 100 includes a first surface 1312 and a second surface 1313, the first surface 1312 is intersected with one end of the second surface 1313, the other end of the first surface 1312 extends to the first connecting surface 111, and the other end of the second surface 1313 extends to the second connecting surface 112 or is spaced from the second connecting surface 112.

[0095] The angle between the first surface 1312 and the second surface 1313 includes an acute angle, an obtuse angle, a right angle, etc.

[0096] The angle between the first surface 1312 and the first connecting surface 111 includes an acute angle, a right angle, etc.

[0097] The other end of the second surface 1313 extends to the second connection surface 112 , or the second surface 1313 and the second connection surface are spaced apart.

[0098] The thermal insulation component provided in the embodiment of the present application has a cut surface 131 formed on the thermal insulation body 100 through the incision 130, including a first surface 1312 and a second surface 1313, so that the shape of the cut surface 131 of the incision 130 is more flexible, and the shape of the cut surface 131 can be changed by adjusting the positions of the first surface 1312 and the second surface 1313. In addition, if the separation layer 300 is peeled off on both sides on the same side of the thermal insulation component 10, the effect of the force offset of the thermal insulation body 100 on the same side can be reduced, thereby simplifying the production process of the isolation component 10 and reducing the production cost.

[0099] In some embodiments, the angle between the first surface 1312 and the second surface 1313 is an acute angle.

[0100] The other end of the first surface 1312 extends to the first connection surface 111, and the other end of the second surface 1313 extends to the second connection surface 112. The surface enclosed by the first surface 1312 and the second surface 1313 is in a V-shape.

[0101] The thermal insulation component 10 provided in the embodiment of the present application has an acute angle between the first surface 1312 and the second surface 1313. Compared with the inclined surface 1311 of the cut surface 131 of the cut 130, the edge position of the cut 130 of the thermal insulation body has a larger deformation amount than the middle position of the thermal insulation body 100, making it easier to peel off the separation layer 300.

[0102] In some embodiments, the first surface 1312 and the second surface 1313 are perpendicular to each other. The first surface 1312 extends along the first direction X to the first connection surface 111 , and the second surface 1313 extends along the second direction Y and is spaced apart from the first connection surface 111 and the second connection surface 112 .

[0103] The first surface 1312 and the second surface 1313 are arranged in an L-shape.

[0104] The thermal insulation component 10 provided in the embodiment of the present application, through the setting of the positions of the first surface 1312 and the second surface 1313, makes the shape of the thermal insulation component 10 adaptable to be installed on the surface of an L-shaped object, thereby expanding the use scenarios of the thermal insulation component 10. In addition, during the preparation process of the thermal insulation component 10, the shape of the L-shaped section 131 can be cut into two thermal insulation components 10 at one time, which can simplify the production process.

[0105] In some embodiments, along the first direction X, orthographic projections of at least a portion of the edges of the first connecting surface 111 and the second connecting surface 112 coincide with each other.

[0106] Exemplarily, the first connection surface 111 includes a first edge 1111 and a second edge 1112 arranged in pairs, and the second connection surface 112 includes a third edge 1121 and a fourth edge 1122 arranged in pairs, and the length of the first edge 1111 is greater than the length of the second edge 1112, and the length of the third edge 1121 is greater than the length of the fourth edge 1122. The orthographic projections of at least part of the edges of the first connection surface 111 and the second connection surface 112 overlap, including: the orthographic projections of the first edge 1111 and the third edge 1121 partially overlap along the first direction X, or the orthographic projections of the third edge 1121 and the fourth edge 1122 partially overlap. The size of the overlap of the edges of the first connection surface 111 and the second connection surface 112 can be adjusted according to actual conditions.

[0107] The thermal insulation assembly 10 provided in the embodiment of the present application has the first connection surface 111 and the second connection surface 112 having their orthographic projections overlapped at least partially, thereby improving the stability of the thermal insulation assembly 10, making it more durable and less prone to deformation or distortion during handling and transportation.

[0108] In some embodiments, the first connecting surface 111 includes a first edge 1111 and a second edge 1112 arranged in a pair, and the second connecting surface 112 includes a third edge 1121 and a fourth edge 1122 arranged in a pair. In the first direction X, the first edge 1111 and the third edge 1121 at least partially overlap, and the incision 130 is located between the second edge 1112 and the fourth edge 1122.

[0109] Optionally, a length dimension of the first edge 1111 is greater than a length dimension of the third edge 1121 .

[0110] The thermal insulation component 10 provided in the embodiment of the present application, through the above-mentioned configuration, enables the thermal insulation component 10 to effectively block the transfer of heat and provide a good thermal insulation effect. The shape setting of the thermal insulation component 10 enables the thermal insulation component 10 to have good stability and is not easy to deform. The thermal insulation component 10 is easy to disassemble and install, which is convenient for reuse, reducing costs and environmental pressure.

[0111] In some embodiments, along the first direction X, the orthographic projection length of the first edge 1111 is L1, the orthographic projection length of the overlapping portion of the first edge 1111 and the third edge 1121 is L2, and the ratio of L1 to L2 is between 10:1 and 20:1.

[0112] The ratios of L1 to L2 include 10:1, 12:1, 15:1, 18:1, 20:1, etc.

[0113] The thermal insulation assembly 10 provided in the embodiment of the present application can, by setting the above-mentioned ratio, enable the portion of the thermal insulation body 100 that does not have the cutout 130 to have a higher thermal insulation effect, and the thermal insulation effect of the thermal insulation assembly 10 is not adversely affected by the setting of the cutout 130.

[0114] The embodiment of the present application provides a thermal insulation assembly 10 , including a thermal insulation body 100 , an adhesive layer 200 , and a separation layer 300 . The heat insulating body 100 has a first connecting surface 111 and a second connecting surface 112 which are arranged in pairs and in parallel, and a side wall surface 120 connected between the first connecting surface 111 and the second connecting surface 112. The adhesive layer 200 is located on the first connecting surface 111 and the second connecting surface 112 of the heat insulating body 100 and is connected to the first connecting surface 111 and the second connecting surface 112 respectively. The separation layer 300 is connected to the adhesive layer 200. The first connecting surface 111, the second connecting surface 112 and the separation layer 300 have matching sizes and are rectangular. The heat insulating body 100 is provided with cutouts 130 on both sides of the second direction Y respectively. Adhesive layers 200 are respectively provided on the connecting surfaces 110 which are arranged in pairs. Each adhesive layer 200 is covered with a separation layer 300. Each separation layer 300 is arranged opposite to one of the cutouts 130 and covers the cutout 130 in the orthographic projection of the first direction X. The first direction X intersects with the second direction Y. The cut surface 131 formed by the cutout 130 on the heat insulation body 100 includes an inclined surface 1311, one end of the inclined surface 1311 intersects with the first connecting surface 111, and the other end intersects with the second connecting surface 112.

[0115] The embodiment of the present application provides a battery 1, including a battery cell 30 and a heat insulation assembly 10. There are multiple battery cells 30, and the battery cells 30 are arranged along the first direction X. The heat insulation assembly 10 includes a heat insulation body 100 and an adhesive layer 200. The heat insulation body 100 has a connection surface 110 and a side wall surface 120. The connection surfaces 110 are arranged in pairs and arranged at intervals along the first direction X. The side wall surface 120 is connected between the connection surfaces 110 arranged in pairs. The adhesive layer 200 is arranged on the connection surface 110 and connected to the heat insulation body 100. The heat insulation body 100 is provided with a cutout 130, and the cutout 130 is formed by the side wall surface 120 being recessed into the heat insulation body 100. The heat insulation assembly 10 is located between adjacent battery cells 30 through the adhesive layer 200.

[0116] A battery 1 provided in one embodiment of the present application may include an isolation component 10 provided in the above-mentioned embodiments. When the isolation component 10 is used for the battery 1, its separation layer 300 is peeled off from the insulation body 100 and connected to the battery cell 30 through the adhesive layer 200. The battery cell 30 may cover the incision 130.

[0117] The battery 1 provided in the embodiment of the present application includes a battery cell 30 and a thermal insulation component 10, so that the heat transfer between the battery cells 30 can be effectively blocked, the adverse effect of heat on the battery cells 30 can be reduced, the temperature of the battery 1 can be effectively maintained within a preset range, the performance and life of the battery 1 can be maintained, and the preparation process of the battery 1 can be simplified. At the same time, the setting of the incision 130 enables the isolation component 10 to be connected to the battery cell 30. Since the elastic modulus of the thermal insulation body 100 at the incision 130 is larger than the elastic modulus at other positions of the thermal insulation body 100, when the separation layer 300 is separated from the adhesive layer 200 along the first direction X, the separation layer 300 is easy to peel off due to the larger elastic modulus of the thermal insulation body 100 at the incision 130.

[0118] An embodiment of the present application provides an electrical device, comprising the battery 1 provided in any of the above embodiments.

[0119] The electric device provided in the embodiment of the present application includes the setting of the heat insulation component 10, which can effectively suppress the diffusion of heat when the battery 1 inside the electric device is in thermal runaway, delay the occurrence of accidents, and simplify the assembly process of the electric device.

[0120] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A thermal insulation component, characterized in that: include: The heat-insulating body has a connecting surface and a side wall surface, wherein the connecting surfaces are arranged in pairs and are spaced apart along a first direction, and the side wall surface is connected between the connecting surfaces arranged in pairs; An adhesive layer is disposed on the connection surface and connected to the heat insulation body; A separation layer covering a side of the adhesive layer facing away from the heat insulation body; The heat insulation body is provided with a cutout, the cutout being formed by the side wall being recessed into the heat insulation body, and the orthographic projection of the separation layer in the first direction covers the cutout.

2. The thermal insulation assembly according to claim 1, characterized in that: Along the first direction, orthographic projections of the connection surfaces arranged in pairs at least partially overlap.

3. The thermal insulation assembly according to claim 1 or 2, characterized in that: The heat insulation body is respectively provided with the incisions on both sides of the second direction, and the connecting surfaces arranged in pairs are respectively provided with the adhesive layers, each of the adhesive layers is covered with the separation layer, each of the separation layers is arranged opposite to one of the incisions and covers the incision in its orthographic projection in the first direction, and the first direction is arranged to intersect with the second direction.

4. The thermal insulation assembly according to claim 3, characterized in that: The connecting surfaces arranged in pairs include a first connecting surface and a second connecting surface. The first connecting surface and the second connecting surface are arranged in parallel. The first connecting surface, the second connecting surface and the separation layer have matching sizes and are rectangular.

5. The thermal insulation assembly according to claim 4, characterized in that: The cut surface formed by the cutout on the heat insulation body includes an inclined surface, one end of the inclined surface intersects with the first connecting surface, and the other end of the inclined surface intersects with the second connecting surface.

6. The thermal insulation assembly according to claim 4, characterized in that The cut surface formed by the incision on the insulation body includes a first surface and a second surface, the first surface is intersected with one end of the second surface, the other end of the first surface extends to the first connecting surface, and the other end of the second surface extends to the second connecting surface or is spaced from the second connecting surface.

7. The thermal insulation assembly according to claim 6, characterized in that The angle between the first surface and the second surface is an acute angle.

8. The thermal insulation assembly according to claim 6, characterized in that The first surface and the second surface are perpendicular to each other. The first surface extends along a first direction to the first connecting surface. The second surface extends along the second direction and is spaced apart from the first connecting surface and the second connecting surface.

9. A battery, characterized in that: include: A plurality of battery cells, wherein the battery cells are arranged along a first direction; A thermal insulation component includes a thermal insulation body and an adhesive layer. The thermal insulation body has a connecting surface and a side wall surface. The connecting surfaces are arranged in pairs and spaced apart along a first direction. The side wall surface is connected between the connecting surfaces arranged in pairs. The adhesive layer is arranged on the connecting surface and connected to the thermal insulation body. A cutout is provided on the thermal insulation body. The cutout is formed by the side wall surface being recessed into the thermal insulation body. The thermal insulation component is connected between adjacent battery cells through the adhesive layer.

10. An electrical device, characterized in that: A battery comprising the battery of claim 9.

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