Power lithium battery safety valve and use method thereof
A lithium battery and safety valve technology, applied in safety valves, battery pack components, circuits, etc., can solve problems such as anti-explosion, safety valves do not have a reset function, etc., and achieve the effect of avoiding explosions
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Embodiment 1
[0079] like figure 1 As shown, a power lithium battery safety valve includes a battery compartment 1, a compartment cover 2, a valve body assembly 3 and a drive assembly.
[0080] A lithium battery pack 11 is arranged inside the battery compartment 1 , and the battery compartment 1 is responsible for providing fixing, sealing and protecting the lithium battery pack 11 .
[0081] The compartment cover 2 is connected to the battery compartment 1, and the compartment cover 2 is provided with a circular valve hole that communicates with the interior of the battery compartment 1. The valve body assembly 3 is arranged in the circular valve hole, and the circular valve hole is used to connect the inside of the battery compartment 1. It communicates with the outside, and realizes the sealing or communication function through the valve body assembly 3 provided. When the lithium battery is in normal use, the valve body assembly 3 seals the circular valve hole; when the lithium battery f...
Embodiment 2
[0092] like figure 2 As shown, the present embodiment describes the specific structures of the upper valve body 32 and the lower valve body 33 .
[0093] The upper valve body 32 includes an upper valve core barrel 322 and an upper guide vane 323, which may be an integrally formed structure or a welded structure.
[0094] The upper valve core barrel 322 is sleeved on the valve shaft 31 and is connected with the valve shaft 31 in a dynamic sealing manner, that is, the rotation of the valve shaft 31 does not directly drive the upper valve body 32 to rotate.
[0095] image 3 As shown, n upper guide vanes 323 are annularly distributed along the central axis of the upper valve core barrel 322, and the inner end of the upper guide vane 323 is fixedly connected with the outer side surface of the upper valve core barrel 322, and two adjacent upper guide vanes are An upper exhaust gap 321 is formed between 323 .
[0096] The lower valve body 33 includes a lower valve core barrel 33...
Embodiment 3
[0102] In the second embodiment, the air in the battery compartment 1 can be discharged by rotating the lower valve body 33, but if the battery in the battery compartment 1 burns violently, too much gas is generated, and the battery cannot be discharged in time by natural discharge. Decompression of the compartment 1 may still cause the battery compartment 1 to be broken. Therefore, this embodiment provides an impeller-type guide vane, which can generate suction from the inside to the outside of the battery compartment 1 by rotating the guide vane to assist the battery compartment 1. The gas inside is discharged.
[0103] like figure 2 , image 3 and Figure 4 As shown, the connection surface between the upper guide vane 323 and the upper spool barrel 322 is an upper arc spline curve that is not parallel to the valve shaft 31 and is set along the outer side of the upper spool barrel 322, and a plurality of upper arc spline curves the same direction of rotation;
[0104] T...
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