Battery and electric device

Abstract

The application provides a battery and an electric device. The battery comprises a battery monomer, a control element and a sound insulation component. The control element is electrically connected with the battery monomer, and the sound insulation component is arranged adjacent to the control element. In the application, the sound insulation component is arranged in the battery, and the sound insulation component is arranged on the surface of the control element. The sound emitted by the control element can be absorbed in the battery, so that the noise can be effectively controlled. Further, most of the noise generated by the control element will not be transmitted to the vehicle interior through the vehicle chassis, so that the noise volume in the vehicle interior can be reduced, and the passenger's riding experience can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, and more particularly, to a battery and a power utilization device. BACKGROUND

[0002] At present, in a power utilization device such as a vehicle, a battery is often needed to provide corresponding power. However, during the operation of the battery, a large noise is easily generated, thereby adversely affecting the use of the power utilization device. SUMMARY

[0003] The present application provides a battery and a power utilization device, which can reduce the problem of noise generated during the operation of the battery.

[0004] In a first aspect, an embodiment of the present application provides a battery, comprising a battery monomer, a control element, a sound insulation component, and a box body. The box body comprises a first accommodating cavity and a second accommodating cavity which are separately arranged, and the battery monomer is accommodated in the first accommodating cavity. The control element is electrically connected to the battery monomer and is accommodated in the second accommodating cavity, and the sound insulation component is arranged adjacent to the control element and is accommodated in the second accommodating cavity.

[0005] In the embodiment of the present application, by arranging the sound insulation component inside the battery and arranging the sound insulation component on the surface of the control element, the sound emitted by the control element can be absorbed inside the battery, thereby effectively controlling the noise.

[0006] In some embodiments, the thickness of the sound insulation component is H, and 0.2mm≤H≤50mm.

[0007] In the embodiment of the present application, while ensuring the noise reduction effect, the waste of the internal space of the battery is avoided, the battery has a high energy density, and the battery has a strong endurance effect.

[0008] In some embodiments, 0.5mm≤H≤10mm. Exemplarily, H is one of 0.5mm, 1mm, 3mm, 5mm, and 10mm.

[0009] In some embodiments, the total weight of the battery is M, and H and M satisfy: 0.0002mm / kg≤H / M≤5mm / kg.

[0010] In the above embodiment, while ensuring the noise reduction effect, the waste of the internal space of the battery is further avoided, and the battery has a high energy density.

[0011] In some embodiments, 0.0006mm / kg≤H / M≤0.1mm / kg. Exemplarily, H / M is one of 0.0006mm / kg, 0.0001mm / kg, 0.001mm / kg, 0.01mm / kg, and 0.1mm / kg.

[0012] In some embodiments, the battery further comprises a box body, the box body comprising a first accommodating cavity and a second accommodating cavity, the battery cell being accommodated in the first accommodating cavity, and the control element being accommodated in the second accommodating cavity.

[0013] In the above embodiments, the battery cell and the control element are respectively located in the first accommodating cavity and the second accommodating cavity, i.e., the battery cell and the control element are spaced apart inside the box body. This design can avoid physical interference between the battery cell and the control element, and avoid one of the battery cell and the control element from contacting or colliding with the other during operation due to vibration or other factors, thereby improving the use safety of the battery.

[0014] In some embodiments, the box body comprises a first wall and a second wall arranged oppositely, the first wall being located between the first accommodating cavity and the second accommodating cavity, and the second wall being located on a side of the second accommodating cavity away from the first accommodating cavity. The control element is mounted on the first wall, and the sound insulation component is at least partially located between the second wall and the control element.

[0015] In the embodiments of the present application, at least part of the sound insulation component is arranged on the same side of the control element and the battery cell, so as to absorb at least part of the noise emitted by the battery cell while absorbing the noise emitted by the control element, thereby further reducing the noise generated by the battery.

[0016] In some embodiments, the box body comprises a control box connected to the first wall, the control box being a hollow structure with an opening, and the second wall being covered on the opening and enclosing the second accommodating cavity together with the control box.

[0017] In the embodiments of the present application, the control box is mounted on the first wall, and the second wall is mounted on the control box, so as to form the second accommodating cavity in the box body for accommodating the control element and the sound insulation component. This design is conducive to the maintenance and replacement of the control element and the sound insulation component.

[0018] In some embodiments, the sound insulation component is arranged spaced apart from the second wall.

[0019] In the above embodiments, the sound insulation component is arranged spaced apart from the second wall, so as to reduce or avoid the vibration of the sound insulation component being transmitted to the box body, thereby reducing the risk of the battery shaking and improving the use safety of the battery.

[0020] In some embodiments, the first wall and the second wall are arranged oppositely along a first direction. In the first direction, the sound insulation component covers the control element.

[0021] In the above embodiment, at least part of the sound insulation component is located between the second wall and the control element in the first direction, and the sound insulation component covers the control element. The size of the sound insulation component can be slightly larger than that of the control element, so that the sound insulation component can slightly protrude from the control element while fully covering the control element, thereby achieving a better noise reduction effect on the control element. Of course, the size of the sound insulation component can also be consistent with the size of the control element, thereby reducing the manufacturing cost of the sound insulation component, and the present application does not limit this.

[0022] In some embodiments, the sound insulation component is provided with a recess on the side facing the first wall, and at least part of the control element is accommodated in the recess.

[0023] In the above embodiment, the profile size of the sound insulation component is greater than the profile size of the control element, and a recess is provided in the sound insulation component, so that at least part of the structure of the control element can be located in the recess. The noise emitted by the structure located in the recess can be absorbed by the multiple inner walls of the recess, thereby improving the noise reduction effect.

[0024] In some embodiments, the sound insulation component is arranged in close contact with the control element.

[0025] In the present application, the sound insulation component is arranged in close contact with the control element, so that the distance between the sound insulation component and the control element is closer, thereby better absorbing the noise emitted by the control element and further improving the noise reduction effect.

[0026] In some embodiments, the sound insulation component includes a buffer portion and a noise reduction portion, and the noise reduction portion is arranged on the side of the buffer portion away from the control element.

[0027] In the above embodiment, by including the buffer portion and the noise reduction portion in the sound insulation component, the sound insulation component can meet the noise reduction requirement while also achieving the vibration reduction effect.

[0028] In some embodiments, the sound insulation component includes foam.

[0029] In the above embodiment, the foam material has a series of characteristics such as elasticity, light weight, fast pressure-sensitive fixing, easy use, bending, ultra-thin volume, and reliable performance. By adding foam material to the sound insulation component, the noise reduction and vibration reduction requirements of the sound insulation component can be met at the same time, and the foam material will not have a significant impact on the overall weight of the battery, which is conducive to the lightweight design of the battery.

[0030] In a second aspect, the present application provides a power consumption device including the battery in any of the above embodiments.

[0031] In some embodiments, the power consumption device includes a mounting member, the box is connected to the mounting member, and the second accommodating cavity is located on the side of the first accommodating cavity close to the mounting member.

[0032] In this embodiment, a sound insulation component is added to the second receiving cavity to reduce the noise transmitted from the control element to the electrical device, thereby improving the reliability of the electrical device. Attached Figure Description

[0033] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0034] Figure 1 This application provides structural schematic diagrams of vehicles for some embodiments;

[0035] Figure 2 This is an exploded view of a partial structure in a battery provided in some embodiments of this application;

[0036] Figure 3 This is an exploded view of a partial structure in a battery provided in some embodiments of this application;

[0037] Figure 4 This application provides schematic diagrams of the battery structure for some embodiments.

[0038] Figure 5 yes Figure 4 A magnified structural diagram of region Q in the middle region;

[0039] Figure 6 This is a schematic diagram illustrating the cooperation relationship between the sound insulation component and the control element in a battery according to some embodiments of this application;

[0040] Figure 7 This application provides schematic diagrams illustrating the cooperation relationship between sound insulation components and control elements in batteries according to some embodiments;

[0041] The accompanying drawings are not drawn to scale.

[0042] In the attached image:

[0043] 1000, vehicles;

[0044] 100. Battery; 200. Controller; 300. Motor;

[0045] 10. Battery cells;

[0046] 20. Control components;

[0047] 30. Sound insulation components; 31. Recesses; 32. Buffer sections; 33. Noise reduction sections;

[0048] 40, box; 41, first accommodating cavity; 42, second accommodating cavity; 43, first wall; 44, second wall; 45, control box;

[0049] X, first direction. DETAILED DESCRIPTION

[0050] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0051] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used in the present application are only for the purpose of describing specific embodiments of the present application and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion. The terms "first", "second" and the like in the specification and claims of the present application and the above description of drawings are used to distinguish different objects, and are not intended to describe a particular order or primary and secondary relationship.

[0052] In the present application, the phrase "embodiments" means that the specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily mean the same embodiment, nor is it an independent or alternative embodiment to other embodiments.

[0053] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mount", "connect", "connection", "attach" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0054] In the present application, the term "and / or" is only a description of the association relationship between the associated objects, which means that there can be three kinds of relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in the present application generally represents a "or" relationship between the front and rear associated objects.

[0055] In the embodiments of the present application, the same reference signs represent the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of the present application shown in the drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are only exemplary and should not constitute any limitation on the present application.

[0056] “Multiple” appearing in the present application refers to two or more (including two).

[0057] In the present application, the battery cell can include 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, etc., and the embodiments of the present application are not limited thereto. The battery cell can be in the shape of a cylinder, a flat body, a cuboid, or other shapes, etc., and the embodiments of the present application are not limited thereto.

[0058] The battery referred to in the embodiments of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity. For example, the battery referred to in the present application can include a battery or a battery pack, etc. The battery generally includes a box for packaging one or more battery cells. The box can prevent liquids or other foreign matter from affecting the charging or discharging of the battery cell.

[0059] The battery cell includes an electrode assembly and an electrolyte, and the electrode assembly is composed of a positive electrode sheet, a negative electrode sheet, and a separator. The battery cell mainly works by relying on the movement of metal ions between the positive electrode sheet and the negative electrode sheet. The positive electrode sheet includes a positive electrode current collector and a positive electrode active material layer, and the positive electrode active material layer is coated on the surface of the positive electrode current collector. The positive electrode current collector that is not coated with the positive electrode active material layer protrudes from the positive electrode current collector that has been coated with the positive electrode active material layer, and the positive electrode current collector that is not coated with the positive electrode active material layer serves as a positive electrode tab. Taking a lithium-ion battery as an example, the material of the positive electrode current collector can be aluminum, and the positive electrode active material can be lithium cobaltate, lithium iron phosphate, ternary lithium, or lithium manganate, etc. The negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer, and the negative electrode active material layer is coated on the surface of the negative electrode current collector. The negative electrode current collector that is not coated with the negative electrode active material layer protrudes from the negative electrode current collector that has been coated with the negative electrode active material layer, and the negative electrode current collector that is not coated with the negative electrode active material layer serves as a negative electrode tab. The material of the negative electrode current collector can be copper, and the negative electrode active material can be carbon or silicon, etc. In order to ensure that no fusing occurs when passing a large current, the number of positive electrode tabs is multiple and stacked together, and the number of negative electrode tabs is multiple and stacked together. The material of the separator can be polypropylene (PP) or polyethylene (PE), etc. In addition, the electrode assembly can be a wound structure or a stacked structure, and the embodiments of the present application are not limited thereto.

[0060] For an electric device such as a vehicle, the applicant notices that during the use of the battery, the battery is prone to generate a large noise, thereby affecting the use of the electric device.

[0061] The applicant finds that the noise problem is caused by the fact that for an electric device such as a vehicle, the battery and the control element are often used together. In order to facilitate the maintenance and replacement of the control element, the control element is usually arranged inside the battery, which results in that the distance between the control element and the vehicle chassis is very close. When the battery works, the control element in the battery also starts to work, and the noise generated by the operation of the control element is directly transmitted into the vehicle, causing the noise in the vehicle to increase.

[0062] Based on the above problems found by the applicant, the application provides a battery, which comprises a battery monomer, a control element, a sound insulation component and a box. The box comprises a first accommodating cavity and a second accommodating cavity arranged separately, and the battery monomer is accommodated in the first accommodating cavity. The control element is electrically connected to the battery monomer and is accommodated in the second accommodating cavity, and the sound insulation component is arranged adjacent to the control element and is accommodated in the second accommodating cavity.

[0063] The application sets the sound insulation component inside the battery, and sets the sound insulation component on the surface of the control element, so that the sound emitted by the control element can be absorbed inside the battery, thereby achieving effective control of the noise.

[0064] The technical solutions described in the embodiments of the application are suitable for electric devices using batteries, such as electric vehicles, electric cars, ships, spacecraft, electric toys and electric tools, etc., wherein the spacecraft is, for example, an airplane, a rocket, a space shuttle and a spacecraft, etc., the electric toys include fixed or mobile electric toys, for example, an electric car toy, an electric ship toy and an electric airplane toy, etc., and the electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools and railway electric tools, for example, a power drill, a power grinder, a power wrench, a power screwdriver, a power hammer, an impact drill, a concrete vibrator and a power planer.

[0065] The battery monomer described in the embodiments of the application is not only limited to the above-described electric devices, but for the sake of simplicity, the following embodiments are described by taking an electric car as an example.

[0066] Please refer to Figure 1The vehicle 1000 can be a fuel automobile, a gas automobile, or a new energy automobile. The new energy automobile can be a pure electric automobile, a hybrid automobile, or a range extended automobile, etc. The vehicle 1000 can be provided with a battery 100. For example, the battery 100 can be arranged at the bottom, the front, or the rear of the vehicle 1000. The battery 100 can be used for power supply of the vehicle 1000. For example, the battery 100 can be used as an operating power supply of the vehicle 1000. The vehicle 1000 can further include a controller 200 and a motor 300. The controller 200 can be used to control power supply of the battery to the motor 300. The battery can be used for starting and navigation of the vehicle 1000. Of course, the battery 100 can also be used to drive the vehicle 1000 to run, to replace or partially replace fuel or natural gas to provide driving for the vehicle 1000.

[0067] The structure of the battery will be described in detail below with reference to the accompanying drawings.

[0068] The battery provided by the embodiments of the present application is described below with reference to Figures 2 to 5 The battery includes a battery monomer 10, a control element 20, a sound insulation component 30, and a box 40. The box 40 includes a first accommodating cavity 41 and a second accommodating cavity 42 arranged separately. The battery monomer 10 is accommodated in the first accommodating cavity 41. The control element 20 is electrically connected to the battery monomer 10 and is accommodated in the second accommodating cavity 42. The sound insulation component 30 is arranged adjacent to the control element 20 and is accommodated in the second accommodating cavity 42.

[0069] In the embodiments of the present application, the “sound insulation component 30 is arranged adjacent to the control element 20” means that the sound insulation component 30 is arranged closer to the control element 20 relative to the battery monomer 10. The control element 20 and the sound insulation component 30 can be in contact with each other or can be arranged separately, which is not limited in the embodiments of the present application.

[0070] The box 40 is used to carry and protect the battery monomer 10 and the control element 20 inside the battery, so as to reduce the problem of knocking and breaking of the battery monomer 10 or the control element 20 due to external environment and other factors.

[0071] The box 40 includes at least two parts, i.e., the first accommodating cavity 41 and the second accommodating cavity 42. The first accommodating cavity 41 and the second accommodating cavity 42 are arranged separately to accommodate different structures in the battery. The battery monomer 10 is located in the first accommodating cavity 41, and the control element 20 and the sound insulation component 30 are located in the second accommodating cavity 42.

[0072] The battery cell 10 is a main component in the battery for providing power, and the specific structure of the battery cell 10 is not limited in the embodiments of the present application. The control element 20 is electrically connected to the battery cell 10, and the control element 20 includes but is not limited to a relay and other voltage or current controllers. Exemplarily, the control element 20 is electrically connected to a controller in the vehicle, and can play a role of circuit adjustment and protection.

[0073] The battery cell 10 and the control element 20 are respectively located in the first accommodating cavity 41 and the second accommodating cavity 42, that is, the battery cell 10 and the control element 20 are spaced apart inside the box body 40. This design can avoid physical interference between the battery cell 10 and the control element 20, and avoid one of the battery cell 10 or the control element 20 from contacting and colliding with the other during operation due to vibration and other factors, thereby improving the safety of the battery in use.

[0074] It should be noted that although the battery cell 10 and the control element 20 are spaced apart, the battery cell 10 and the control element 20 can be electrically connected through wires and the like.

[0075] During the operation of the vehicle, the battery cell 10 in the battery needs to provide power for the operation of the vehicle, and at the same time, the control element 20 in the battery also needs to work, thereby ensuring the smooth operation of the circuit system in the vehicle. In this process, the control element 20 will produce a large sound due to vibration and other factors, and since the battery is usually fixed on the vehicle chassis. Therefore, the sound produced by the control element 20 will be transmitted through the vehicle chassis and transmitted to the inside of the vehicle, resulting in an increase in the noise inside the vehicle, thereby reducing the riding experience of the passengers inside the vehicle.

[0076] On this basis, the embodiments of the present application additionally add a sound insulation component 30 in the battery, the sound insulation component 30 is arranged on the surface of the control element 20, and the sound insulation component 30 includes a sound insulation material. The specific composition of the sound insulation material is not limited in the embodiments of the present application. The noise generated by the operation of the control element 20 will first reach the sound insulation component 30, and then the sound insulation component 30 will absorb at least part of the noise emitted by the control element 20, thereby reducing the noise volume transmitted to the vehicle.

[0077] The embodiments of the present application can absorb the sound emitted by the control element 20 inside the battery by arranging the sound insulation component 30 in the battery and arranging the sound insulation component 30 on the surface of the control element 20, thereby achieving effective control of the noise. Further, most of the noise generated by the control element 20 will not be transmitted to the inside of the vehicle through the vehicle chassis, so as to reduce the noise volume in the vehicle and improve the riding experience of the passengers.

[0078] It should be noted that the position of the sound insulation component 30 relative to the control element 20 is not limited in this embodiment. Optionally, the sound insulation component 30 is disposed on the side of the control element 20 closer to the vehicle chassis. Specifically, if the control element 20 is located on the side of the battery cell 10 closer to the vehicle chassis, the sound insulation component 30 may be disposed on the side of the control element 20 away from the battery cell 10. If the battery cell 10 is located on the side of the control element 20 closer to the vehicle chassis, the sound insulation component 30 may be disposed between the battery cell 10 and the control element 20.

[0079] This design allows the sound insulation component 30 to absorb noise emitted by the control element 20, and also to separate the vehicle chassis from the control element 20 through the sound insulation component 30, thereby reducing the vibration intensity transmitted from the control element 20 to the vehicle chassis through contact.

[0080] In some embodiments, such as Figure 3 and Figure 4 As shown, the thickness H of the sound insulation component 30 satisfies: 0.2mm ≤ H ≤ 50mm. The thickness of the sound insulation component 30 refers to its dimension in the first direction X. For example, the thickness H of the sound insulation component 30 is one of 0.2mm, 1mm, 10mm, 30mm, and 50mm.

[0081] The sound insulation component 30 is housed within the battery, which is typically mounted on the vehicle chassis. The thickness of the sound insulation component 30 is generally positively correlated with its noise reduction effect. Therefore, if the thickness H of the sound insulation component 30 is too small, it indicates that the noise reduction effect of the component itself is poor, making it difficult to meet the noise reduction requirements of the battery. If the thickness H of the sound insulation component 30 is too large, it indicates that it requires too much space, which will lead to an increase in the overall battery volume or a decrease in the space available for the individual battery cells 10. An increased overall battery volume will hinder battery installation on the vehicle chassis and the overall lightweight design of the vehicle. Conversely, a decrease in the space available for the individual battery cells 10 will affect the total battery capacity, resulting in a reduction in the vehicle's overall range.

[0082] Therefore, based on practical needs, this embodiment sets the thickness H of the sound insulation component 30 to 0.2mm-50mm. While ensuring noise reduction, it avoids wasting internal battery space, ensures high battery energy density, and guarantees strong vehicle range. Optionally, the thickness H of the sound insulation component 30 is 0.5mm-10mm. For example, H is one of 0.5mm, 1mm, 3mm, 5mm, and 10mm.

[0083] In some embodiments, the total weight of the battery is M, where H and M satisfy: 0.0002mm / kg ≤ H / M ≤ 5mm / kg. For example, H / M is one of 0.0002mm / kg, 0.02mm / kg, 1mm / kg, 3mm / kg, and 5mm / kg.

[0084] As can be seen from the foregoing, if the thickness H of the sound insulation component 30 is too large or too small, it will lead to problems such as different battery energy densities and poor battery noise reduction effects, respectively. Based on this, the embodiments of this application also impose restrictions on the relationship between the thickness H of the sound insulation component 30 and the total weight M of the battery.

[0085] Specifically, when H / M is too high, it indicates that the thickness of the sound insulation component 30 is too large or the capacity of the battery cell 10 is too small. This can lead to problems such as wasted space inside the battery or low battery energy density. When H / M is too low, it indicates that the sound insulation component 30 cannot meet the noise reduction requirements relative to the battery, and there is still considerable noise inside the vehicle.

[0086] Therefore, in this embodiment, H / M is set between 0.0002 mm / kg and 5 mm / kg. This ensures noise reduction while further avoiding waste of internal battery space and guaranteeing a high energy density. Optionally, 0.0006 mm / kg ≤ H / M ≤ 0.1 mm / kg. For example, H / M is one of 0.0006 mm / kg, 0.0001 mm / kg, 0.001 mm / kg, 0.01 mm / kg, and 0.1 mm / kg.

[0087] In some embodiments, such as Figure 5 As shown, the enclosure 40 includes a first wall 43 and a second wall 44 disposed opposite to each other. The first wall 43 is located between the first receiving cavity 41 and the second receiving cavity 42, and the second wall 44 is located on the side of the second receiving cavity 42 opposite to the first receiving cavity 41. The control element 20 is mounted on the first wall 43, and the sound insulation component 30 is at least partially located between the second wall 44 and the control element 20.

[0088] The first wall 43 is located between the first receiving cavity 41 and the second receiving cavity 42. The first wall 43 can separate the first receiving cavity 41 and the second receiving cavity 42, making the first receiving cavity 41 and the second receiving cavity 42 two independent spaces. This further separates the battery cell 10 from the control element 20, reducing the risk of interference between the battery cell 10 and the control element 20 and improving battery safety. Optionally, the wires used to electrically connect the battery cell 10 and the control element 20 are passed through the first wall 43.

[0089] The second wall 44 is located on the side of the second accommodating cavity 42 away from the first accommodating cavity 41, and the second wall 44 can be used to realize the connection between the battery and the vehicle chassis in a manner including but not limited to bonding, welding, bolting and the like. In addition, during the installation of the battery and the vehicle, the second wall 44 can be installed on the vehicle chassis as part of the battery, or the second wall 44 can be fixedly connected with other structures of the battery as part of the vehicle chassis, and the embodiments of the present application do not limit this.

[0090] The control element 20 is located in the second accommodating cavity 42 and is installed on the first wall 43 in a manner including but not limited to bonding, welding, bolting and the like. By fixing the control element 20 on the first wall 43, the risk of displacement of the control element 20 due to vehicle shaking and the like during vehicle movement is reduced, and it is ensured that the control element 20 can still be used normally when the vehicle runs on rugged or other dangerous terrain.

[0091] The sound insulation component 30 is at least partially located between the second wall 44 and the control element 20. As known from the foregoing, the sound insulation component 30 is provided to reduce the noise influence of the control element 20 on the vehicle and to improve the riding experience of the passengers in the vehicle. On this basis, at least part of the sound insulation component 30 is arranged on the side of the control element 20 and the battery monomer 10 facing the vehicle chassis in the embodiments of the present application, so as to reduce the noise volume transmitted by the control element 20 to the vehicle while absorbing at least part of the noise emitted by the battery monomer 10, thereby further reducing the influence of the noise generated in the battery on the vehicle and improving the riding experience of the passengers.

[0092] In some embodiments, as shown in Figure 3 The box body 40 includes a control box 45 connected to the first wall 43, and the control box 45 is a hollow structure with an opening, and the second wall 44 covers the opening and forms the second accommodating cavity 42 together with the control box 45.

[0093] The control box 45 is installed on the first wall 43 in a manner including but not limited to welding, bonding, bolting and the like. The control box 45 is a hollow structure with an opening, wherein the control box 45 can have an opening at only one end and cover the opening by the second wall 44; or the control box 45 can have openings at both ends, and the first wall 43 and the second wall 44 cover the two openings of the control box 45, respectively.

[0094] The control box 45 and the second wall 44 together form the second accommodating cavity 42, wherein the control box 45 can serve as a side wall of the second accommodating cavity 42, and the second wall 44 can serve as a top wall of the second accommodating cavity. The size and shape of the control box 45 are not limited in the embodiments of the present application. Exemplarily, the orthogonal projection of the control box 45 on the first wall 43 is located within the outer contour of the first wall 43.

[0095] The embodiment of the present application forms the second accommodating cavity 42 in the cabinet 40 for accommodating the control element 20 and the sound insulation component 30 by installing the control box 45 on the first wall 43 and installing the second wall 44 on the control box 45, which is beneficial to the maintenance and replacement of the control element 20 and the sound insulation component 30.

[0096] In some embodiments, as shown in Figure 6 the sound insulation component 30 is spaced apart from the second wall 44, so as to reduce the vibration of the vehicle chassis from the battery.

[0097] Specifically, during the operation of the vehicle, both the battery monomer 10 and the control element 20 are working, and in the working process, the control element 20 often generates noise and vibration. If the sound insulation component 30 is attached to the second wall 44, the vibration generated by the control element 20 may be transmitted to the vehicle chassis through the sound insulation component 30 and the second wall 44, so that the passengers feel unnecessary shaking, which is not conducive to the passenger experience.

[0098] Therefore, the embodiment of the present application spaces the sound insulation component 30 and the second wall 44, reduces or avoids the transmission of the vibration of the sound insulation component 30 to the vehicle chassis, thereby reducing unnecessary shaking in the vehicle chassis and improving the passenger experience. Alternatively, the control element 20 and the sound insulation component 30 can be arranged to reduce the vibration of the sound insulation component 30 generated by the control element 20.

[0099] It should be noted that the spacing distance L between the sound insulation component 30 and the second wall 44 depends on the vibration amplitude of the vibration of the sound insulation component 30 caused by the control element 20, and the embodiment of the present application does not limit this. That is, as long as the sound insulation component 30 and the second wall 44 do not contact or slightly contact when the sound insulation component 30 vibrates to the maximum amplitude.

[0100] In some embodiments, the first wall 43 and the second wall 44 are arranged relative to each other along the first direction X. In the first direction X, the sound insulation component 30 covers the control element 20.

[0101] The first wall 43 and the second wall 44 are spaced apart in the first direction X. Exemplarily, the first wall 43 is parallel to the second wall 44, and the first direction X is the thickness direction of the first wall 43 and the second wall 44.

[0102] At least part of the sound insulation component 30 is located between the second wall 44 and the control element 20 in the first direction X, and the sound insulation component 30 covers the control element 20. Among them, the size of the sound insulation component 30 can be slightly larger than that of the control element 20, so that the sound insulation component 30 can slightly protrude from the control element 20 while completely covering the control element 20, thereby being able to better reduce the noise of the control element 20. Of course, the size of the sound insulation component 30 can also be completely consistent with the size of the control element 20, thereby reducing the manufacturing cost of the sound insulation component 30, and the embodiments of the present application do not limit this.

[0103] In addition, the shape of the sound insulation component 30 is also not limited in the embodiments of the present application. Exemplarily, in the preparation process, the sound insulation component 30 is prepared according to the shape of the control element 20, so that the contour shape of the sound insulation component 30 can be consistent with the contour shape of the control element 20.

[0104] In the embodiments of the present application, by covering the control element 20 with the sound insulation edge, the sound insulation component 30 can better reduce the noise of the control element 20.

[0105] In some embodiments, please refer to Figure 3 and Figure 6 , the side of the sound insulation component 30 facing the first wall 43 is provided with a recess 31, and at least part of the control element 20 is accommodated in the recess 31.

[0106] The sound insulation component 30 has a first surface facing the first wall 43, and the recess 31 is formed by the first surface being recessed inward. As known from the foregoing, the sound insulation component 30 covers the control element 20. On this basis, the embodiments of the present application set the contour size of the sound insulation component 30 to be larger than the contour size of the control element 20, and set the recess 31 in the sound insulation component 30, so that at least part of the structure of the control element 20 can be located in the recess 31. The noise emitted by the structure located in the recess 31 can be absorbed by the multiple inner walls of the recess 31, thereby improving the noise reduction effect.

[0107] In some embodiments, the control element 20 is completely located in the recess 31. In this case, in addition to the noise emitted by the control element 20 being absorbed by the part of the sound insulation component 30 located between the control element 20 and the second wall 44, the noise can also be absorbed by the multiple inner walls of the recess 31, thereby further improving the noise reduction effect.

[0108] In some embodiments, the sound insulation component 30 is arranged in close contact with the control element 20.

[0109] The "fitting arrangement" mentioned in the embodiments of the present application means that the sound insulation component 30 and the control element 20 are in contact with each other. For example, the sound insulation component 30 and the control element 20 can be fixed by bonding or the like. In the preparation process of the sound insulation component 30, the shape profile of the sound insulation component 30 can be matched with at least one surface of the control element 20 by profile preparation, and then the position between the two is fixed by bonding or the like.

[0110] In the embodiments of the present application, the sound insulation component 30 and the control element 20 are arranged in a fitting manner, so that the distance between the sound insulation component 30 and the control element 20 is closer, thereby better absorbing the noise emitted by the control element 20, and further improving the noise reduction effect.

[0111] In some embodiments, as shown in Figure 7 The sound insulation component 30 includes a buffer part 32 and a noise reduction part 33, and the noise reduction part 33 is arranged on the side of the buffer part 32 away from the control element 20.

[0112] The sound insulation component 30 mainly plays a noise reduction effect, reducing the noise generated by the control element 20 in the battery to the vehicle. In the embodiments of the present application, the sound insulation component 30 is arranged to include the buffer part 32 and the noise reduction part 33, and the noise reduction part 33 includes noise reduction material, mainly playing a noise reduction effect. The noise reduction part 33 is arranged close to the vehicle chassis relative to the buffer part 32, thereby effectively absorbing or blocking the noise transmitted by the control element 20 to the vehicle.

[0113] The buffer part 32 includes a buffer material, mainly playing a buffering effect. The buffer part 32 is arranged close to the control element 20 relative to the noise reduction part 33. When the control element 20 vibrates and contacts the sound insulation component 30, the control element 20 will first contact the buffer part 32, and the buffer part 32 can buffer and absorb most of the force generated by the vibration of the control element 20, thereby reducing the influence of the vibration of the control element 20 on the vehicle.

[0114] In the embodiments of the present application, the sound insulation component 30 includes the buffer part 32 and the noise reduction part 33, so that the sound insulation component 30 can meet the noise reduction needs while also playing a vibration reduction effect, thereby further improving the riding experience of passengers during vehicle operation.

[0115] In some embodiments, the sound insulation component 30 includes foam. The foam has a series of characteristics such as elasticity, light weight, fast pressure-sensitive fixing, convenient use, free bending, ultra-thin volume, and reliable performance. By adding foam material to the sound insulation component 30, the noise reduction and vibration reduction needs of the sound insulation component 30 can be met at the same time, and the foam material will not have a great impact on the overall weight of the battery, which is conducive to the lightweight design of the battery.

[0116] In a second aspect, the embodiments of the present application provide a power consuming device, comprising the battery in any of the foregoing embodiments.

[0117] It should be noted that the power consuming device provided by the embodiments of the present application has the beneficial effects of the battery in any of the foregoing embodiments. For specific content, reference can be made to the foregoing description of the beneficial effects of the battery. The embodiments of the present application will not be described here again.

[0118] In some embodiments, the power consuming device comprises a mounting member, the box is connected to the mounting member, and the second accommodating cavity is located on a side of the first accommodating cavity close to the mounting member.

[0119] The box is mounted on the mounting member of the power consuming device. For a vehicle, the mounting member is the chassis of the vehicle. The second accommodating cavity is closer to other structures in the power consuming device than the first accommodating cavity. The noise generated by the control element located in the second accommodating cavity is easily transmitted to the power consuming device, thereby affecting the normal use of the power consuming device.

[0120] Therefore, the embodiments of the present application add a sound insulation member in the second accommodating cavity. The sound insulation member reduces the noise transmitted to the inside of the power consuming device by the control element, thereby improving the use reliability of the power consuming device.

[0121] According to some embodiments of the present application, please refer to Figure 4 , Figure 5 and Figure 7 . The battery comprises a box 40, a battery monomer 10, a control element 20, and a sound insulation member 30. The control element 20 is electrically connected to the battery monomer 10. The box 40 comprises a first wall 43, a second wall 44, a first accommodating cavity 41, and a second accommodating cavity 42. The first wall 43 is located between the first accommodating cavity 41 and the second accommodating cavity 42. The second wall 44 is located on a side of the second accommodating cavity 42 away from the first accommodating cavity 41.

[0122] The battery monomer 10 is accommodated in the first accommodating cavity 41. The control element 20 is accommodated in the second accommodating cavity 42 and mounted on the first wall 43. At least part of the sound insulation member 30 is located between the second wall 44 and the control element 20 and is arranged to separate and cover the control element 20. The sound insulation member 30 comprises a buffer part 32 and a noise reduction part 33. The noise reduction part 33 is arranged on a side of the buffer part 32 away from the control element 20.

[0123] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0124] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the same; although the present application has been described in detail with reference to the foregoing examples, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacements for some of the technical features, but these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery, comprising: a box body comprising a first accommodating cavity and a second accommodating cavity arranged in separation; a battery cell accommodated in the first accommodating cavity; a control element electrically connected to the battery cell and accommodated in the second accommodating cavity; a sound insulation component arranged adjacent to the control element and accommodated in the second accommodating cavity; the box body comprises a first wall and a second wall arranged in opposition, the first wall is located between the first accommodating cavity and the second accommodating cavity, the second wall is located on a side of the second accommodating cavity away from the first accommodating cavity, the control element is mounted on the first wall, the sound insulation component is at least partially located between the second wall and the control element, and the second wall is used for connecting the battery and a vehicle chassis.

2. The battery of claim 1, wherein, A thickness of the sound insulation component is H, and 0.2 mm≤H≤50 mm.

3. The battery of claim 2, wherein, 0.5 mm≤H≤10 mm.

4. The battery of any one of claims 1-3, wherein, A thickness of the sound insulation component is H, a total weight of the battery is M, and H and M satisfy: 0.0002 mm / kg≤H / M≤5 mm / kg.

5. The battery of claim 4, wherein, H and M satisfy: 0.0006 mm / kg≤H / M≤0.1 mm / kg.

6. The battery of claim 1, wherein, The box body comprises a control box connected to the first wall, the control box is a hollow structure with an opening, and the second wall covers the opening and encloses the second accommodating cavity together with the control box.

7. The battery of claim 1, wherein, The sound insulation component is arranged in separation from the second wall.

8. The battery of any one of claims 6-7, wherein, The first wall and the second wall are arranged in opposition along a first direction. In the first direction, the sound insulation component covers the control element.

9. The battery of claim 8, wherein, A side of the sound insulation component facing the first wall is provided with a recess, and at least a part of the control element is accommodated in the recess.

10. The battery of any one of claims 1-9, wherein, The sound insulation component is arranged in adhesion to the control element.

11. The battery of any one of claims 1-10, wherein, The sound insulation component comprises a buffer part and a noise reduction part, and the noise reduction part is arranged on a side of the buffer part away from the control element.

12. The battery of any one of claims 1-11, wherein, The sound insulation component comprises foam. 13.A power consuming device, comprising the battery according to any one of claims 1 to 12, and the battery is used for providing electric energy.

14. The powered device of claim 13, wherein, The power consuming device comprises a mounting member, the box body is connected to the mounting member, and the second accommodating cavity is located on a side of the first accommodating cavity close to the mounting member.

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