电池装置和用电装置

Abstract

本申请公开了一种电池装置和用电装置，属于电池技术领域，所述电池装置包括：箱体，箱体包括箱主体和箱盖，箱主体限定出在第一方向上的至少一侧敞开的容纳腔，箱盖封盖容纳腔的敞开侧，箱主体上设有多个密封面，多个密封面均沿箱主体的周向延伸为环形，且在从容纳腔的中心朝向周沿的方向上内外排布，多个密封面均与箱盖密封配合，至少一个密封面相对于垂直于第一方向的第一平面倾斜设置，在从容纳腔的中心朝向周沿的方向上，多个密封面与第一平面之间的夹角逐渐增大；多个电池单体设于容纳腔内。在上述技术方式中，可以实现高效自排水，提升电池装置的防水性能，可以有效缓解应力集中，提升箱主体与箱盖之间的抗振动性能，还可以实现密封冗余。

Claims

1. A battery device, characterized by, include: The box includes a main body and a lid. The main body defines a receiving cavity that is open on at least one side in a first direction. The lid is connected to the main body and seals the open side of the receiving cavity. The main body has a plurality of sealing surfaces, each of which extends in a ring shape along the circumference of the main body and is arranged inside and outside in a direction from the center of the receiving cavity toward the periphery. Each of the sealing surfaces is in sealing engagement with the lid. At least one of the sealing surfaces is inclined relative to a first plane perpendicular to the first direction. In the direction from the center of the receiving cavity toward the periphery, the angle between the plurality of sealing surfaces and the first plane gradually increases. Multiple battery cells are disposed within the receiving cavity.

2. The battery device according to claim 1, characterized by In the direction from the center of the receiving cavity toward the periphery, at least one of the sealing surfaces extends obliquely toward the middle position of the box body in the first direction.

3. The battery device of claim 1, wherein The plurality of sealing surfaces includes a first sealing surface and a second sealing surface, wherein there is one first sealing surface located between the second sealing surface and the receiving cavity, and there are one or more second sealing surfaces. Wherein, the angle between the first sealing surface and the first plane is 15°-30°; and / or, the angle between the second sealing surface and the first plane is 30°-90°.

4. The battery device of claim 3, wherein The angle between the first sealing surface and the first plane is 20°-25°.

5. The battery device according to any one of claims 1 to 4, characterized by, The plurality of sealing surfaces include a first sealing surface and a second sealing surface, wherein the first sealing surface is located between the receiving cavity and the second sealing surface, and the battery device further includes: A first sealing element extends circumferentially along the first sealing surface in an annular shape and seals against the first sealing surface between the box cover; and / or, The second sealing element extends circumferentially along the second sealing surface in an annular shape and seals against the second sealing surface between the box cover.

6. The battery device of claim 5, wherein Along the first direction, the distance between the first seal and the second seal is 0.5mm-2mm.

7. The battery device of claim 5, wherein A recessed sealing groove is formed on the outer peripheral surface of the box body. The sealing groove is arranged at the end of the box body in the first direction and passes through the end face of the box body in the first direction. The bottom wall of the sealing groove is the second sealing surface, and the second sealing element is arranged in the sealing groove.

8. The battery device of claim 5, wherein, The first seal is a rubber component or a silicone component; and / or, the second seal is a rubber component or a silicone component.

9. The battery device of any one of claims 1-4, wherein, The sealing surface is connected to the inner wall of the receiving cavity by an arc; and / or, adjacent sealing surfaces are connected by an arc; and / or, the sealing surface is connected to the outer peripheral surface of the box body by an arc.

10. The battery device according to any one of claims 1 to 4, wherein The outer circumferential surface of the box body is provided with a limiting groove, and the periphery of the box cover is formed with a folded edge that bends toward the side where the receiving cavity is located, and the folded edge fits into the limiting groove.

11. The battery device of claim 10, wherein, The depth of the limiting groove is 5mm-7mm, and / or the width of the folded edge is 3mm-5mm; and / or, in the first direction, the distance between the limiting groove and the sealing surface closest to the receiving cavity is 3mm-10mm.

12. The battery device of any one of claims 1-4, wherein, The main body of the box has multiple first fixing holes that penetrate the sealing surface and are spaced apart circumferentially on the main body. The lid has multiple second fixing holes that correspond one-to-one with the first fixing holes. The lid is fastened to the main body of the box by fasteners passing through the first and second fixing holes. The fastener includes a stud and a screw head connected to one end of the stud. The stud passes through the first fixing hole and the second fixing hole, and the periphery of the box cover is sandwiched between the screw head and the sealing surface.

13. The battery device of any one of claims 1-4, wherein, The main body of the box is open on both sides in the first direction, and there are two lids, which are respectively placed on both sides of the main body of the box in the first direction.

14. The battery device of claim 13, wherein, The box body includes two first beams and two second beams. The two first beams extend along a second direction and are spaced apart in a third direction. The two second beams extend along the third direction and are spaced apart in the second direction. The two second beams are respectively located at both ends of the two first beams and connected between them. The first direction, the second direction, and the third direction intersect each other but are not coplanar. Both the first beams and the second beams are extruded parts and each has multiple cavities; and / or, The lid is a stamped part.

15. An electrical device, comprising: The battery device includes any one of claims 1-14.

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