Power battery explosion-proof structure and electric automobile
A power battery, explosion-proof structure technology, applied in electric vehicles, battery/battery traction, structural parts, etc., can solve problems such as power battery explosion, and achieve the effect of preventing explosions
Active Publication Date: 2017-01-18
BEIJING ELECTRIC VEHICLE
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Problems solved by technology
[0003] In order to solve the above technical problems, the present invention provides an explosion-proof structure of a power battery and a vehicle, which solves the explosion problem caused by the rapid rise of the internal temperature and pressure of the power battery
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[0026] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.
[0027] Embodiments of the present invention provide an explosion-proof structure of a Chinese power battery and an electric vehicle to solve the problem of explosion caused by a rapid rise in temperature and pressure inside the battery.
[0028] Such as Figure 1 to Figure 3 As shown, the embodiment of the present invention provides an explosion-proof structure of a power battery, which specifically includes: a box body, a box cover 1 and an ex...
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The invention discloses a power battery explosion-proof structure and electric automobile. The structure comprises a case body used for loading the power battery, wherein the case body is provided with a first open structure; a case cover is covered on the case body through match with the first open structure is included, and a second open structure is arranged on the case cover; and an explosion-proof valve is also included, the explosion-proof valve comprises a cover type valve body, a connecting part and a plurality of reed structures, wherein one end of the connecting part is fixed to the center of the cover type valve body, the reed structures are connected with the other end of the connecting part and arranged in a preset radian, the tail ends of the reed structures are connected in a abutting mode with the edge of the second open structure of the case cover. The reed structures of the power battery explosion-proof structure is in initial status, but under the action of elastic force of the reed structures, the cover type valve body covers the second open structure covered and is tightly tied to the case cover; when gas pressure inside the case body is beyond a preset threshold value, deformation of the reed structures happens under the action of the gas pressure, and under the action of deformation force, the cover type valve body separates from the case cover and a gas channel is formed to achieve the aim of quickly discharging pressure to prevent the battery from explosion.
Description
technical field [0001] The invention relates to the field of electric vehicle battery design, in particular to an explosion-proof structure of a power battery and an electric vehicle. Background technique [0002] With the rapid development of electric vehicles, battery packs, as the core key components of electric vehicles, have higher and higher safety requirements. In extreme cases, when the internal short circuit of the battery pack or thermal runaway of the cells occurs, the internal temperature and pressure of the battery pack will rise rapidly. At this time, it is difficult to quickly exhaust the battery pack, which will cause the battery pack to explode due to excessive expansion. Contents of the invention [0003] In order to solve the above technical problems, the present invention provides an explosion-proof structure of a power battery and a vehicle, which solves the explosion problem of the power battery caused by a rapid rise in internal temperature and press...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01M2/10H01M2/12H01M2/04B60L11/18H01M50/147H01M50/20H01M50/204H01M50/30H01M50/325H01M50/342H01M50/383
CPCB60L50/50H01M50/147H01M50/30H01M50/20H01M50/325H01M50/383H01M50/342Y02T10/70Y02E60/10
Inventor 王诗涛李彦良程永周杨重科李玉军
Owner BEIJING ELECTRIC VEHICLE