Protector applied to lithium battery and protection system thereof
A protection system, lithium battery technology, applied to battery pack components, circuits, electrical components, etc., can solve problems such as damage to the protection board, large vibration of the protection board, incomplete safety protection, etc., to achieve enhanced protection and return to normal The effect of energizing and improving the protection performance
Inactive Publication Date: 2021-08-03
金华市小狸新材料科技有限责任公司
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Problems solved by technology
[0004] The lithium battery protection board can protect the lithium battery pack well in terms of electricity. However, in actual use, the electrical equipment is not only affected by the electricity, but also affected by mechanical external forces. For example, the protection board on the electric vehicle is affected by vibration. It is relatively large, which can easily lead to damage to the protection board, and the existing protection board has only one layer of protection measures. When the protection board itself has problems, it cannot continue to protect the lithium battery pack, and the safety protection is not thorough.
Method used
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[0042] see Figure 1-8 , a protector and its protection system applied to lithium batteries, please refer to Figure 1-3 , comprising a lithium battery pack 1 and a matching lithium battery protection plate 2, an insulating sealed case 3 is arranged between the lithium battery pack 1 and the lithium battery protective plate 2, and the interior of the insulating sealed case 3 is filled with an insulating gas, and the insulating sealed case The filling amount of the insulating gas in 3 is 70%-80%, which is to reserve a part of the space for the micro air pump 7 to pump and inflate, and the side wall of the insulating sealing shell 3 is connected with a gas replenishment pipe, which is for the convenience of supplying Insulating gas is supplemented in the insulating sealing shell 3, and an insulating air bag 4 is connected inside the insulating sealing shell 3;
[0043] see Image 6 , the shape of the insulating airbag 4 is an ellipsoid, and the insulating airbag 4 includes a b...
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The invention discloses a protector applied to a lithium battery and a protection system of the protector, and belongs to the field of lithium battery protection. According to the scheme, the protection on a lithium battery pack is enhanced by adding a multi-layer power-off measure, and the lithium battery pack is physically powered off after the lithium battery pack is powered off by an insulating sealing shell from the electrical aspect, so the protection performance is improved; the miniature air pump is triggered by the insulating sealing shell to blow insulating gas into the insulating air bag, so that the two protective shells are separated, the two electrified conductive blocks are powered off, and an electrifying circuit of the lithium battery pack is thoroughly cut off, and when the insulating sealing shell triggers the miniature air pump to pump the insulating gas outwards from the insulating air bag, the two protection shells make contact again through the shrunken insulation air bag, so the contact energization of the two conductive blocks is achieved; in addition, when the insulation sealing shell goes wrong, a self-checking system in the lithium battery pack can also start the micro air pump to be powered off, and the lithium battery pack is further protected.
Description
technical field [0001] The invention relates to the field of lithium battery protection, more specifically, to a protector applied to lithium batteries and a protection system thereof. Background technique [0002] Lithium-ion batteries have been widely used in portable electrical appliances such as laptops, cameras, and mobile communications due to their unique performance advantages. The developed large-capacity lithium-ion battery has been tested in electric vehicles and is expected to become one of the main power sources of electric vehicles in the 21st century, and will be applied in artificial satellites, aerospace and energy storage. With the shortage of energy and the pressure of the world's environmental protection. Lithium batteries are widely used in the electric vehicle industry, especially the emergence of lithium iron phosphate batteries, which has promoted the development and application of the lithium battery industry. [0003] The lithium battery protectio...
Claims
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IPC IPC(8): H01M50/574H01M50/581H01M50/583
CPCY02E60/10
Inventor 胡伟
Owner 金华市小狸新材料科技有限责任公司