Battery and power consuming device

Abstract

This application provides a battery and an electrical device, relating to the field of battery manufacturing technology. The battery includes a casing, a battery body, a first waterproof plate, a second waterproof plate, a first cover plate, and a second cover plate. The casing has a receiving cavity with openings at both ends. The battery body is disposed within the receiving cavity. The first and second waterproof plates are respectively disposed within the receiving cavities and sealed to the casing. The first and second waterproof plates are arranged opposite each other and are located at opposite ends of the battery body. At least one of the first and second waterproof plates has a wiring hole. The first cover plate is sealed to the casing, covering one end of the opening, and is located on the side of the first waterproof plate away from the receiving cavity. The second cover plate is sealed to the casing, covering the other end of the opening, and is located on the side of the second waterproof plate away from the receiving cavity. The design of the first and second waterproof plates at both ends of the battery body improves the battery's waterproof performance and enhances its operational reliability in humid environments.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, and in particular to a battery and an electrical device. Background Technology

[0002] As a core component of electrical devices, batteries are crucial for some devices, such as non-motorized vehicles. Their lithium batteries are used outdoors in varying conditions, especially in wet environments, requiring extremely high waterproof performance. Water ingress can lead to anything from rusting of internal metal parts to short circuits, posing a fire and explosion risk.

[0003] Existing waterproofing solutions involve installing sealing rings or applying sealant to the outer casing to achieve the corresponding waterproof rating. However, during long-term vehicle use, there are high-frequency vibrations and bumps, as well as improper handling by some users that may result in the sealant detaching, causing the seal to fail, reducing waterproofing performance, and affecting battery life and reliability. Utility Model Content

[0004] The purpose of this invention is to provide a battery and an electrical device that can improve the battery's sealing performance and waterproof performance, thereby improving the battery's reliability in humid and water-related environments and extending its service life.

[0005] In a first aspect, this utility model provides a battery, comprising:

[0006] A housing; the housing having receiving cavities open at both ends;

[0007] A battery body, wherein the battery body is disposed within the receiving cavity;

[0008] A first waterproof membrane; the first waterproof membrane is disposed within the receiving cavity and is sealed to the housing;

[0009] The second waterproof plate is disposed within the receiving cavity and is sealed to the housing; the first waterproof plate and the second waterproof plate are disposed opposite each other and are respectively located at opposite ends of the battery body; at least one of the first waterproof plate and the second waterproof plate is provided with a wire outlet hole;

[0010] A first cover plate covers the opening at one end of the housing and is sealed to the housing. The first cover plate is located on the side of the first waterproof plate away from the receiving cavity.

[0011] A second cover plate covers the opening at the other end of the housing and is sealed to the housing. The second cover plate is located on the side of the second waterproof plate away from the receiving cavity.

[0012] In an optional embodiment, a first sealant layer is provided between the first waterproof membrane and the second waterproof membrane and the inner wall of the housing; and / or, a sealing gasket is provided between the first waterproof membrane and the second waterproof membrane and the inner wall of the housing.

[0013] In an optional embodiment, the battery body is provided with a wiring harness, which passes through the outlet hole, and a second sealant layer is provided between the wiring harness and the wall of the outlet hole.

[0014] In an optional embodiment, the first cover plate and the second cover plate are respectively provided with sealing rings between themselves and the housing.

[0015] In an optional embodiment, the sealing ring includes a first surface and a second surface disposed opposite to each other, and a first side surface and a second side surface disposed opposite to each other; the first side surface is connected to the first surface and the second surface respectively, and the second side surface is connected to the first surface and the second surface respectively; the first side surface faces the inside of the sealing ring, and the second side surface faces the outside of the sealing ring;

[0016] The first surface has a recessed portion; the first cover plate and the second cover plate each have a protrusion on the side facing the receiving cavity, and the protrusion is inserted into the recessed portion; the groove wall of the recessed portion near the second side is sandwiched between the protrusion and the inner wall of the housing; the second side has a first protrusion protruding outward, and the first protrusion is sandwiched between the end face of the housing and the side surface of the first cover plate facing the receiving cavity, or the first protrusion is sandwiched between the end face of the housing and the side surface of the second cover plate facing the receiving cavity.

[0017] In an optional embodiment, the second side is further provided with a plurality of second protrusions facing outward of the sealing ring, the plurality of second protrusions being spaced apart along the thickness direction of the sealing ring; the first protrusion is closer to the first surface than the second protrusion.

[0018] In an optional embodiment, the sealing ring is provided with a mounting hole that penetrates the first surface and the second surface, and the mounting hole is spaced apart from the recess.

[0019] In an optional embodiment, at the location where the sealing ring has the mounting hole, the first side has a third protrusion facing the inside of the sealing ring.

[0020] In an optional embodiment, a third sealant layer is further included, which fills the gap between the housing and the battery body, the gap between the first waterproof plate and the battery body, and the gap between the second waterproof plate and the battery body.

[0021] Secondly, the present invention provides an electrical device, including a device body and a battery as described in any of the foregoing embodiments, wherein the battery and the device body are electrically connected.

[0022] The battery and power-consuming device provided in this embodiment of the utility model have the following beneficial effects:

[0023] The battery provided in this embodiment adds a first waterproof plate and a second waterproof plate at both ends of the battery body. The first waterproof plate and the second waterproof plate are respectively sealed to the shell, adding an extra waterproof barrier, improving the waterproof performance of the battery, and helping to improve the reliability and service life of the battery in humid or water-related environments.

[0024] The electrical device provided in this embodiment includes the battery described above. The battery has good waterproof performance, and the electrical device can be used reliably in humid or water-related environments, thus extending its service life. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of the battery provided in an embodiment of the present utility model;

[0027] Figure 2 A schematic diagram of the disassembled structure of a battery provided in an embodiment of this utility model;

[0028] Figure 3 This is a schematic diagram of the overall cross-sectional structure of the battery provided in an embodiment of the present utility model;

[0029] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle;

[0030] Figure 5 for Figure 3 A magnified view of a portion of point B in the middle;

[0031] Figure 6 for Figure 3 A magnified view of a portion of point C in the middle;

[0032] Figure 7 A schematic diagram of the cross-sectional structure of the sealing ring of the battery provided in an embodiment of this utility model;

[0033] Figure 8 A partial structural schematic diagram of the sealing ring of the battery provided in an embodiment of this utility model;

[0034] Figure 9 for Figure 3 A magnified view of a portion of point D in the middle;

[0035] Figure 10 A schematic diagram of the structure for installing the first waterproof plate during the battery installation process provided in this embodiment of the utility model;

[0036] Figure 11 A schematic diagram of the structure for installing the second waterproof plate and injecting the third sealant layer during the battery installation process provided in this embodiment of the utility model;

[0037] Figure 12 A schematic diagram of the structure for installing the cable sleeve and filling the first and second sealant layers during the battery installation process provided in this embodiment of the utility model;

[0038] Figure 13 This is a schematic diagram of the structure for installing the second cover plate during the battery installation process provided in an embodiment of the present invention.

[0039] Figure 14 This is a schematic diagram of the structure for installing the first cover plate during the battery installation process provided in an embodiment of the present invention.

[0040] Icons: 110-Housing; 120-Battery body; 121-Wire harness; 130-First waterproof plate; 140-Second waterproof plate; 131-First sealant layer; 132-Outlet hole; 133-Second sealant layer; 134-Wire sheath; 135-Third sealant layer; 150-First cover plate; 151-First protrusion; 160-Second cover plate; 161-Second protrusion; 162-Discharge socket; 170-Sealing ring; 171-First surface; 172-Second surface; 173-First side; 174-Second side; 175-Recess; 176-First protrusion; 177-Second protrusion; 178-Third protrusion; 179-Mounting hole; 181-First fastener; 182-Second fastener. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0043] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0044] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0045] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0046] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0047] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0048] This utility model provides a battery and an electrical device that incorporates a waterproof design into the battery structure, improving its waterproof performance and making it suitable for use in humid or water-related environments. This enhances the battery's reliability and lifespan. The electrical device is not limited to vehicles, such as two-wheeled or three-wheeled vehicles.

[0049] Please combine Figures 1 to 3 The battery includes a casing 110, a battery body 120, a first waterproof plate 130, a second waterproof plate 140, a first cover plate 150, and a second cover plate 160. The casing 110 has a receiving cavity with openings at both ends. The battery body 120 is disposed within the receiving cavity. The first waterproof plate 130 and the second waterproof plate 140 are respectively disposed within the receiving cavity and are sealed to the casing 110. The first waterproof plate 130 and the second waterproof plate 140 are arranged opposite each other and are located at opposite ends of the battery body 120. At least one of the first waterproof plate 130 and the second waterproof plate 140 has a cable outlet hole 132. The first cover plate 150 is sealed to one end of the casing 110, covering the opening at one end of the casing 110, and is located on the side of the first waterproof plate 130 away from the receiving cavity. The second cover plate 160 is sealed to the other end of the casing 110, covering the opening at the other end of the casing 110, and is located on the side of the second waterproof plate 140 away from the receiving cavity. By designing a first waterproof plate 130 and a second waterproof plate 140 at both ends of the battery body 120, an additional waterproof barrier is added, improving the battery's waterproof performance and enhancing its operational reliability in humid environments.

[0050] It is understood that the battery body 120 is disposed in the receiving cavity formed by the housing 110, the first waterproof plate 130, and the second waterproof plate 140. One end of the battery body 120 is in contact with the first waterproof plate 130, and the other end is in contact with the second waterproof plate 140, making the entire structure more compact and improving the sealing performance and energy density of the battery pack.

[0051] Please combine Figure 4 and Figure 5 The sealing connection between the first waterproof plate 130 and the housing 110 is achieved by providing a first sealant layer 131 between the first waterproof plate 130 and the housing 110, or by providing a sealing gasket between the two, or by providing both a first sealant layer 131 and a sealing gasket between the two. The first sealant layer 131 can be applied by dispensing; after the first waterproof plate 130 and the housing 110 are fixedly installed, the first sealant layer 131 is applied around the circumference of the first waterproof plate 130 to fill the gap between the first waterproof plate 130 and the housing 110, forming a sealed and waterproof design. The first sealant layer 131 can be a single-component sealant to improve sealing performance. The sealing gasket can be a rubber sealing ring 170, a foam gasket, a silicone sheet, or other sealing elements; no specific limitation is made here.

[0052] In this embodiment, the first waterproof plate 130 and the housing 110 are fixedly connected by a first fastener 181, which includes, but is not limited to, bolts, screws, and pins. The fixed connection method between the first waterproof plate 130 and the housing 110 can also be snap-fit, plug-in, threaded connection, or welding, etc., and is not specifically limited here. The gap between the first waterproof plate 130 and the housing 110 after installation is filled with a first sealant layer 131.

[0053] The space between the second waterproof membrane 140 and the housing 110 is filled with a first sealant layer 131, or a sealing gasket is provided between the two, or a first sealant layer 131 and a sealing gasket are respectively provided between the two. The connection method between the second waterproof membrane 140 and the housing 110 is similar to the connection method between the first waterproof membrane 130 and the housing 110, and will not be described again here.

[0054] Optionally, the outlet hole 132 can be formed on the first waterproof plate 130 or the second waterproof plate 140, or the outlet hole 132 can be formed on both the first waterproof plate 130 and the second waterproof plate 140. The battery body 120 is provided with a wiring harness 121, and the outlet hole 132 facilitates the lead-out of the wiring harness 121 from the battery body 120. Depending on the position of the wiring harness 121, the outlet hole 132 is selectively formed on at least one of the first waterproof plate 130 and the second waterproof plate 140. In this embodiment, the outlet hole 132 is formed on the second waterproof plate 140. The wiring harness 121 extends from the outlet hole 132, and a second sealant layer 133 is provided between the wiring harness 121 and the hole wall of the outlet hole 132. The second sealant layer 133 is used to fill the gap between the second waterproof plate 140 and the wiring harness 121 to improve the sealing at the outlet hole 132 and enhance the waterproof performance. The second sealant layer 133 can be a single-component sealant.

[0055] It is easy to understand that the first sealant layer 131 and the second sealant layer 133 use the same sealant, so there is no need to change the dispensing head when dispensing, and the dispensing efficiency is higher.

[0056] Optionally, the outlet hole 132 can also serve as a filling port for filling the housing 110 with a third sealant layer 135. This sealant layer fills the gaps between the housing 110 and the battery body 120, the first waterproof plate 130 and the battery body 120, and the second waterproof plate 140 and the battery body 120, adding an additional waterproof barrier and further improving the battery's waterproof performance. The third sealant layer 135 uses a two-component sealant, combining sealing and heat dissipation properties.

[0057] Please combine Figures 6 to 8In this embodiment, sealing rings 170 are provided between the first cover plate 150 and the second cover plate 160 and the housing 110, respectively. The sealing rings 170 are used to seal the installation gap between the first cover plate 150 and the housing 110, and to seal the installation gap between the second cover plate 160 and the housing 110. Thus, at least three waterproof barriers are formed in the battery structure from the outside in: the sealing rings 170 between the first cover plate 150 and the second cover plate 160 and the housing 110 serve as the first barrier; the first sealing layer 131 between the first waterproof plate 130 and the second waterproof plate 140 and the housing 110, and the second sealing layer 133 at the outlet hole 132 serve as the second barrier; and the third sealing layer 135 between the battery body 120 and the housing 110, the first waterproof plate 130, and the second waterproof plate 140 serve as the third barrier. This design greatly improves the battery's waterproof performance.

[0058] Optionally, the sealing ring 170 includes a first surface 171 and a second surface 172 disposed opposite to each other, and a first side surface 173 and a second side surface 174 disposed opposite to each other. The first side surface 173 is connected to the first surface 171 and the second surface 172, and the second side surface 174 is connected to the first surface 171 and the second surface 172, respectively; the first side surface 173 faces the inner side of the sealing ring 170, and the second side surface 174 faces the outer side of the sealing ring 170. In other words, the peripheral side surface of the sealing ring 170 includes the first side surface 173, the first surface 171, the second side surface 174, and the second surface 172 connected end to end.

[0059] A recessed portion 175 is provided on the first surface 171. A protrusion is provided on the side of the first cover plate 150 and the second cover plate 160 facing the receiving cavity, and the protrusion is inserted into the recessed portion 175. The recessed portion 175 is a groove. Taking the first cover plate 150 as an example, the first cover plate 150 has a first protrusion 151 extending towards the receiving cavity. The first protrusion 151 is inserted into the recessed portion 175. The groove wall of the recessed portion 175 near the second side surface 174 is sandwiched between the first protrusion 151 and the inner wall of the housing 110. This achieves a sealed connection between the first cover plate 150 and the inner wall of the housing 110. A first protrusion 176 is provided on the second side surface 174 of the sealing ring 170 facing outwards, and the first protrusion 176 is sandwiched between the end face of the housing 110 and the surface of the first cover plate 150 facing the receiving cavity. This achieves a sealed connection between the end face of the housing 110 and the first cover plate 150. In other words, the sealing ring 170 in this embodiment can seal both the inner wall surface and the end face of the housing 110, resulting in better sealing reliability and waterproof performance. Optionally, the first protrusion 176 and the first surface 171 are flush, which can achieve better installation matching and better sealing performance.

[0060] It is easy to understand that if the sealing ring 170 is located on one side of the second cover plate 160, the first protrusion 176 on the sealing ring 170 is sandwiched between the end face of the housing 110 and the surface of the second cover plate 160 facing the receiving cavity. In this embodiment, the sealing rings 170 applied on the first cover plate 150 and the second cover plate 160 have the same structure and similar sealing principle, so there is no need to distinguish them during installation, resulting in higher installation efficiency.

[0061] Optionally, the second side 174 is also provided with a plurality of second protrusions 177 facing outward of the sealing ring 170, and the plurality of second protrusions 177 are spaced apart along the thickness direction of the sealing ring 170; the first protrusion 176 is closer to the first surface 171 than the second protrusions 177. The arrangement of the second protrusions 177 makes the installation of the sealing ring 170 more reliable and less prone to loosening. Furthermore, the plurality of second protrusions 177 can achieve sealing connections at multiple locations on the inner wall, providing multiple sealing functions and further enhancing the sealing performance of the connection between the inner wall of the housing 110 and the protrusions.

[0062] Optionally, the sealing ring 170 has mounting holes 179 penetrating the first surface 171 and the second surface 172, with the mounting holes 179 spaced apart from the recess 175. The first cover plate 150 and the housing 110 are connected by a second fastener 182, which can be a bolt, screw, or pin, etc. The fixing connection method between the first cover plate 150 and the housing 110 can also be snap-fit, plug-in, threaded connection, or welding, etc., without specific limitations. In this embodiment, the first cover plate 150 and the housing 110 are connected by screws. The first cover plate 150 and the housing 110 are respectively provided with fixing holes for screws to pass through, and the mounting holes 179 on the sealing ring 170 are correspondingly provided with the fixing holes. The second fastener 182 can pass through the sealing ring 170 to achieve the fixing connection between the first cover plate 150 and the housing 110. In this way, the second fastener 182 is also surrounded by the sealing ring 170, which can further improve the sealing reliability of the connection. Furthermore, the sealing ring 170 has a certain degree of elasticity, which can play a buffering role in the connection between the first cover plate 150 and the housing 110, preventing the screws from loosening and making the connection more reliable.

[0063] Optionally, at the location where the mounting hole 179 is provided on the sealing ring 170, the first side 173 is provided with a third protrusion 178 facing inward towards the sealing ring 170. The third protrusion 178 has a structural strengthening function. Due to the opening of the mounting hole 179, the local strength of the sealing ring 170 will be weakened to a certain extent. By providing the third protrusion 178, the strength of the sealing ring 170 can be improved, the service life of the sealing ring 170 can be extended, and the sealing reliability can be improved.

[0064] Combination Figure 9The second cover plate 160 has a second protrusion 161, which inserts into the recess 175 of the sealing ring 170. The second side surface 174 has a first protrusion 176 flush with the first surface 171, which is sandwiched between the second cover plate 160 and the end face of the housing 110 near the second cover plate 160, sealing the installation gap between the end faces of the second cover plate 160 and the housing 110. The second side surface 174 has multiple second protrusions 177 protruding outwards towards the sealing ring 170, which seal the installation gap between the second cover plate 160 and the inner wall of the housing 110 to improve waterproofing. It should be noted that the connection method between the second cover plate 160 and the housing 110, and the installation method of the sealing ring 170, are the same as those between the first cover plate 150 and the housing 110, and will not be described again here.

[0065] Combined Figure 2 Optionally, the battery also includes a cable protector 134, which is connected to the wiring harness 121 and provides protection, support, and fixation for the wiring harness 121. The cable protector 134 has multiple through holes. The wiring harness 121 includes a power cable and multiple acquisition cables. Each cable in the wiring harness 121 passes through one through hole, ensuring appropriate spacing between cables for easy cable insertion and installation. In the first cover plate 150 and the second cover plate 160, the one near the outlet hole 132 has a discharge socket 162. The discharge socket 162 is connected to the wiring harness 121 and is electrically connected to it. In this embodiment, the second waterproof plate 140 has an outlet hole 132, and the battery wiring harness 121 extends from one side of the second waterproof plate 140. Therefore, the second cover plate 160 has a discharge socket 162. The discharge socket 162 comes with a waterproof ring. The discharge socket 162 and the wire harness 121 are connected by a plug-in method, which is quick and convenient to install, has high connection efficiency, and good sealing performance.

[0066] Optionally, the housing 110 may be made of aluminum. In other embodiments, the housing 110 may also be made of steel, plastic, or composite metal. Plastic housings include, but are not limited to, polypropylene, and composite metal housings include, but are not limited to, copper-aluminum composite housings; specific limitations are not specified here. The shape of the housing 110 may be designed according to the shape of the battery body 120.

[0067] In this embodiment, the battery body 120 can refer to a single physical module comprising one or more battery cells to provide higher voltage and capacity. For example, the battery body 120 mentioned in this application may include a battery module or battery pack. Battery cells may include lithium-ion battery cells, lithium-ion primary battery cells, lithium-sulfur battery cells, sodium-lithium-ion battery cells, sodium-ion battery cells, or magnesium-ion battery cells, etc., and this application does not limit the specific type. Battery cells may be cylindrical, flat, cuboid, or other shapes, and this application does not limit the specific shape either. Battery cells are generally classified into three types according to their packaging method: cylindrical battery cells, cuboid / square battery cells, and pouch battery cells, and this application does not limit the specific type either.

[0068] The assembly process of the battery provided in this embodiment is roughly as follows:

[0069] Install the first waterproof membrane 130. Combined Figure 10 The housing 110 has a receiving cavity open at both ends. A first waterproof plate 130 is attached to one end of the housing 110, such as the top. The first waterproof plate 130 and the housing 110 are fixedly connected with screws, and a single-component first sealant layer 131 is used to seal the gap between the first waterproof plate 130 and the housing 110.

[0070] Install the battery body 120. Invert the housing 110 with the end containing the first waterproof plate 130 facing down, and insert the battery body 120 into the receiving cavity of the housing 110. After insertion, the battery body 120 rests on the first waterproof plate 130. The first waterproof plate 130 provides support for the battery body 120.

[0071] Install the second waterproof membrane 140. Combined Figure 11 The wiring harness 121 of the battery body 120 passes through the outlet hole 132 of the second waterproof plate 140.

[0072] Inject the third sealant layer 135. Inject the two-component third sealant layer 135 through the outlet hole 132 until the third sealant layer 135 submerges the BMS (Battery Management System) circuit board on the battery body 120.

[0073] Apply the second sealant layer 133. (Fold in place) Figure 12After the third sealant layer 135 has cured, the cable sheath 134 is installed at the outlet hole 132 of the second waterproof plate 140, securing the wire harness 121. A single-component sealant is applied to seal the gaps between the periphery of the second waterproof plate 140 and the inner wall of the housing 110, as well as the gaps between the cable sheath 134 and the wall of the outlet hole 132. In this embodiment, the gap between the periphery of the second waterproof plate 140 and the inner wall of the housing 110 is filled with the first sealant layer 131, the gap between the cable sheath 134 and the wall of the outlet hole 132, and the gap between the cable sheath 134 and the wire harness 121 are filled with the second sealant layer 133. Both the first sealant layer 131 and the second sealant layer 133 are single-component sealants.

[0074] Install the second cover plate 160. Combine. Figure 13 The second cover plate 160 is provided with a discharge socket 162. First, connect the wire harness 121 to the discharge socket 162, then install the sealing ring 170, and finally fasten the second cover plate 160 and the housing 110 with screws.

[0075] Install the first cover plate 150. Combine. Figure 14 Flip the casing 110 over. With the side containing the first waterproof plate 130 facing upwards, install the sealing ring 170, and fasten the first cover plate 150 and the casing 110 with screws to complete the battery installation.

[0076] This utility model provides an electrical device, including a device body and a battery as described in any of the foregoing embodiments, wherein the battery and the device body are electrically connected. The battery supplies power to the device body. The electrical device can be a vehicle, mobile phone, portable device, laptop computer, electric toy, and power tool, etc. The vehicle can be a gasoline-powered car, a natural gas-powered car, a new energy vehicle, an electric two-wheeler, or an electric tricycle, etc. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. Electric toys include stationary or mobile electric toys, such as game consoles, electric car toys, electric boat toys, and electric airplane toys, etc. Power tools include metal cutting power tools, grinding power tools, assembly power tools, and railway power tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators, and electric planers, etc. The embodiments of this application do not impose special limitations on the above-mentioned electrical devices.

[0077] The battery and power-consuming device provided in this embodiment of the utility model have the following beneficial effects, including:

[0078] The battery provided in this embodiment of the invention adopts a three-layer waterproof barrier design. The first barrier is the sealing ring 170 between the first cover plate 150 and the second cover plate 160 and the housing 110, respectively. The second barrier is the first sealing layer 131 between the first waterproof plate 130 and the second waterproof plate 140 and the housing 110, and the second sealing layer 133 at the outlet hole 132, respectively. The third barrier is the third sealing layer 135 between the battery body 120 and the housing 110, the first waterproof plate 130, and the second waterproof plate 140, respectively. This significantly improves the battery's waterproof performance, meeting the IPX7 waterproof rating, and enhances the battery's reliability and lifespan in humid or water-related environments.

[0079] In addition, the sealing ring 170 in this embodiment adopts a special structural design, which can realize the sealing connection between the first cover plate 150 and the second cover plate 160 and the housing 110 on the end face and inner wall of the housing 110, respectively, thereby improving the sealing performance of the connection and enhancing the waterproof capability of the battery.

[0080] This battery effectively prevents water from entering the battery and causing it to malfunction when the outer waterproof layer fails due to damage to the casing 110. This greatly improves the battery's safety performance, enhances its reliability, and extends its lifespan.

[0081] The electrical device provided in this embodiment includes the battery described above. The battery has good waterproof performance, and the electrical device can be used reliably in humid or water-related environments, improving the reliability of battery operation and helping to extend the battery's service life.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Any modifications, equivalent substitutions, improvements, etc., should be included within the protection scope of this utility model.

Claims

1. A battery, characterized in that, include: Housing (110); the housing (110) has receiving cavities open at both ends; A battery body (120) is disposed within the receiving cavity; First waterproof plate (130); the first waterproof plate (130) is disposed in the receiving cavity and sealed to the housing (110); The second waterproof plate (140) is disposed in the receiving cavity and sealed to the housing (110); the first waterproof plate (130) and the second waterproof plate (140) are disposed opposite to each other and are respectively located at opposite ends of the battery body (120); at least one of the first waterproof plate (130) and the second waterproof plate (140) is provided with a wire outlet hole (132); A first cover plate (150) covers the opening at one end of the housing (110) and is sealed to the housing (110). The first cover plate (150) is located on the side of the first waterproof plate (130) away from the receiving cavity. The second cover plate (160) covers the opening at the other end of the housing (110) and is sealed to the housing (110). The second cover plate (160) is located on the side of the second waterproof plate (140) away from the receiving cavity.

2. The battery according to claim 1, characterized in that, The first waterproof membrane (130) and the second waterproof membrane (140) are respectively provided with a first sealant layer (131) between them and the inner wall of the housing (110); and / or, the first waterproof membrane (130) and the second waterproof membrane (140) are respectively provided with a sealing gasket between them and the inner wall of the housing (110).

3. The battery according to claim 2, characterized in that, The battery body (120) is provided with a wire harness (121), which is disposed through the outlet hole (132). A second sealant layer (133) is provided between the wire harness (121) and the hole wall of the outlet hole (132).

4. The battery according to claim 3, characterized in that, The first cover plate (150) and the second cover plate (160) are respectively provided with sealing rings (170) between them and the housing (110).

5. The battery according to claim 4, characterized in that, The sealing ring (170) includes a first surface (171) and a second surface (172) disposed opposite to each other, and a first side surface (173) and a second side surface (174) disposed opposite to each other; the first side surface (173) is connected to the first surface (171) and the second surface (172) respectively, and the second side surface (174) is connected to the first surface (171) and the second surface (172) respectively; the first side surface (173) faces the inner side of the sealing ring (170), and the second side surface (174) faces the outer side of the sealing ring (170); The first surface (171) is provided with a recess (175); the first cover plate (150) and the second cover plate (160) are respectively provided with a protrusion on the side facing the receiving cavity, and the protrusion is inserted into the recess (175); the recess (175) is sandwiched between the protrusion and the inner wall of the housing (110) near the groove wall of the second side surface (174); the second side surface (174) is provided with a first protrusion (176) facing outward, and the first protrusion (176) is sandwiched between the end face of the housing (110) and the side surface of the first cover plate (150) facing the receiving cavity, or the first protrusion (176) is sandwiched between the end face of the housing (110) and the side surface of the second cover plate (160) facing the receiving cavity.

6. The battery according to claim 5, characterized in that, The second side (174) is also provided with a plurality of second protrusions (177) facing outward of the sealing ring (170), and the plurality of second protrusions (177) are spaced apart along the thickness direction of the sealing ring (170); the first protrusion (176) is closer to the first surface (171) than the second protrusions (177).

7. The battery according to claim 6, characterized in that, The sealing ring (170) is provided with a mounting hole (179) that penetrates the first surface (171) and the second surface (172), and the mounting hole (179) is spaced apart from the recess (175).

8. The battery according to claim 7, characterized in that, At the location where the mounting hole (179) is provided on the sealing ring (170), the first side (173) is provided with a third protrusion (178) facing the inside of the sealing ring (170).

9. The battery according to any one of claims 1 to 8, characterized in that, It also includes a third sealant layer (135) that fills the gap between the housing (110) and the battery body (120), the gap between the first waterproof plate (130) and the battery body (120), and the gap between the second waterproof plate (140) and the battery body (120).

10. An electrical device, characterized in that, It includes a device body and a battery as described in any one of claims 1 to 9, wherein the battery and the device body are electrically connected.

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