A power battery lower case assembly and its welding method
A power battery and assembly technology, which is applied to the power battery lower casing assembly and its welding field, can solve the problems of leakage of the battery casing, deformation of sheet metal parts, low production efficiency, etc., so as to prevent leakage of the battery and improve the support. the effect of strength
Active Publication Date: 2019-06-04
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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Problems solved by technology
[0003] In the prior art, the lower casing of the power battery is mostly made of bent parts, which are welded by simple carbon dioxide shielded welding. The disadvantage is that the production efficiency of carbon dioxide shielded welding is low, welding is easy to cause deformation of the sheet metal parts, and welding through the sheet metal causes battery damage. Shell leaks, not suitable for large-scale industrial production
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[0051] The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0052] figure 1 It is a schematic structural diagram of the power battery lower case assembly proposed in the specific embodiment of the present invention; figure 2 It is a schematic structural diagram of the left longitudinal beam outer plate assembly proposed in the specific embodiment of the present invention; image 3 It is a structural schematic diagram of the left longitudinal beam assembly proposed in the specific embodiment of the present invention; Figure 4 It is a top view of the left longitudinal beam assembly proposed by the specific embodiment of the present invention; Figure 5 Schematic diagram of the structure of the right longitudinal beam outer plate assembly proposed for the specific embodiment of the present invention; Figure 6 It is a structural schematic diagram of...
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The invention discloses a power battery lower case assembly and a welding method thereof. The outer panel of the beam, the outer panel of the right longitudinal beam, the rear beam, the middle longitudinal beam and the pallet; the first right-angled side of the left front connector is fixedly installed on the front end of the left longitudinal beam outer panel, and the first right-angled side of the left rear connector is fixedly installed on The rear end of the left longitudinal beam outer panel, the left longitudinal beam support plate is installed on the side of the left longitudinal beam outer panel away from the left longitudinal beam liner; the first end of the front transverse beam outer panel is fixedly connected with the second right-angled side of the left front connector , the front beam support plate is fixedly installed on the outside of the front beam outer panel; the rear beam support plate is installed on the outside of the rear beam outer panel, the rear beam lining plate is installed on the inner side of the rear beam outer panel, and the tail beam is installed on the inside of the pallet. The middle longitudinal beam is installed in the tray, and the tray assembly is fixedly installed inside the ring beam assembly. The invention can improve the strength of the lower casing of the power battery.
Description
technical field [0001] The invention relates to the field of welding technology, in particular to a power battery lower case assembly and a welding method thereof. Background technique [0002] The power battery pack is the power source of new energy pure electric vehicles. Factors such as battery pack safety protection, load-bearing carrier, production cycle, price and cost determine the superiority of the lower shell assembly of high-strength steel stamping parts as a battery pack carrier, and the protection Safety, high production efficiency and low cost. As the country formulates a series of environmental protection policies and people's increasing demand for environmental protection, the development prospects of new energy vehicles are bright, and the output will increase year by year. This requires us to meet the large-scale production capacity of new energy vehicles in a short period of time. Of course, new energy vehicles The three major parts of energy vehicles, ba...
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IPC IPC(8): H01M2/10H01M50/20
CPCH01M50/20Y02E60/10
Inventor 陈康伟夏顺礼赵久志张宝鑫刘舒龙
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD