电池装置及用电装置

Abstract

本申请涉及电池技术领域，尤其涉及电池装置及用电装置。其中电池装置包括箱体、电池单体与泄压组件；箱体限定出第一容纳空间，电池单体收纳于第一容纳空间；泄压组件包括泄压阀和封堵组件，泄压阀包括阀芯与阀体，阀体设置于箱体，阀芯设置于阀体，阀芯与阀体能够相对运动以使泄压阀具有闭阀状态和开阀状态；封堵组件包括封堵件和密封件，在闭阀状态，封堵件和密封件共同封堵阀芯与阀体之间的间隙；在开阀状态，封堵件和密封件中的一者封堵阀芯与阀体之间的间隙的一部分，间隙的另一部分连通第一容纳空间与外部。通过本申请，能够在泄压时使气体按约束方向喷射，减少气体射流对乘客的直接威胁，降低开阀泄压对周围其他电气部件的冲击和损害。

Claims

1. A battery device, characterized by, The battery device includes a housing, individual battery cells, and a pressure relief assembly. The housing defines a first accommodating space, in which the individual battery cells are housed. The pressure relief assembly includes a pressure relief valve and a sealing assembly. The pressure relief valve includes a valve core and a valve body. The valve body is disposed within the housing, and the valve core is disposed within the valve body. The valve core and the valve body are movable relative to each other to allow the pressure relief valve to have a closed state and an open state. The sealing assembly includes a sealing element and a sealing element. In the closed state, the sealing element and the sealing element jointly seal the gap between the valve core and the valve body. In the open state, one of the sealing element and the sealing element seals a portion of the gap between the valve core and the valve body, and the other portion of the gap connects the first accommodating space with the external environment.

2. The battery device of claim 1, wherein The valve core includes an end cap. Along a preset direction, the pressure relief valve has an inlet side and an exhaust side, with the end cap located on the exhaust side. At least one of the plugging member and the sealing member blocks the gap between the end cap and the valve body along the preset direction, and / or, at least one of the plugging member and the sealing member blocks the gap between the end cap and the valve body along the circumferential direction of the end cap.

3. The battery device of claim 2, wherein, The sealing element is connected to the valve core and moves with the valve core. In the open state, the sealing element is located between the valve core and the valve body along the axial or radial direction.

4. The battery device of claim 2, wherein When the valve is open, the seal is located outside the gap between the valve core and the valve body.

5. The battery device of claim 3, wherein The sealing element includes a lever, which is disposed in the gap between the end cap and the valve body along the circumferential direction of the end cap; the sealing element includes a sealing protrusion, which is disposed in the gap between the end cap and the valve body along the preset direction.

6. The battery device of claim 5, wherein, The sealing assembly includes a slide rail that extends circumferentially along the end cap; the slide rail is disposed on the inner wall of the valve body, and the slide rail is slidably connected to the paddle along the preset direction on the side close to the first accommodating space.

7. The battery device of claim 6, wherein, The slide rail has a protrusion, and the paddle is slidably connected to the protrusion on the side of the first receiving space along the preset direction.

8. The battery device of claim 7, wherein, The sealing assembly includes a sealing gasket, which is sleeved on the protrusion. The inside of the lever defines a second receiving space, and the sealing gasket is partially housed within the second receiving space.

9. The battery device according to any one of claims 5 to 8, characterized by, Along the circumference of the end cap, an annular groove is formed on the outer edge surface of the end cap, and the lever engages with the annular groove.

10. The battery device according to any one of claims 6 to 8, characterized by, The sealing assembly includes at least two limiting members, which are fixed to the slide rail. Along the circumference of the end cap, each of the paddles is disposed between the two limiting members.

11. The battery device of claim 3, wherein The plugging member and the sealing member are disposed on the side of the end cap close to the first accommodating space along the preset direction; the plugging member extends circumferentially along the end cap, and the sealing member includes a first sealing ring, which extends circumferentially along the end cap.

12. The battery device of claim 11, wherein, The sealing assembly includes a first magnetic element and a second magnetic element. The first magnetic element and the second magnetic element are magnetically connected. The first magnetic element is fixed to the side of the sealing assembly close to the first accommodating space along the preset direction, and the second magnetic element is fixed inside the valve body.

13. The battery device of claim 4, wherein, Along the radial direction of the end cap, a portion of the circumferential outer edge of the end cap is fixed to the inner wall of the valve body.

14. The battery device of claim 13, wherein, The sealing assembly includes a second sealing ring, which includes the sealing element and the sealing element connected in an annular shape. The second sealing ring is disposed in the gap between the valve body and the end cap. The sealing element is configured to pop out in the open state to allow gas to escape, and to retract into the gap in the closed state.

15. The battery device of claim 14, wherein, The projection of the sealing element is projected onto a projection plane perpendicular to the preset direction, and the projection of the sealing element falls into the projection of the end cap, and the projection of the sealing element does not overlap with the projection of the end cap.

16. The battery device according to claim 14 or 15, wherein Along the preset direction, the seal has a plurality of annular protrusions on the side away from the first receiving space; the annular protrusions protrude in a direction intersecting the preset direction, and at least one of the annular protrusions abuts against the end cap.

17. An electrical device, comprising: The battery device includes any one of claims 1 to 16, the battery device being used to store or provide electrical energy.

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