# US 2021/0344075 A1 · Echelon utilization battery pack with good seismic resistance > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0344075 A1 - Document ID: US20210344075A1 - Status: Published application - Kind: A1 - Application number: 17/237,969 - Filed: 2021-04-22 - Published: 2021-11-04 - Earliest claimed: 2020-04-30 - Assignees: Anhui Lvwo Recycling Energy Technology Co , Ltd. - Applicants: Anhui Lvwo Recycling Energy Technology Co., Ltd. - Inventors: Tianwen HU; Pai LI; Yunsheng LI; Qiong LI - Web page: https://patentgrep.com/patent/US20210344075A1 ## CPC - H01M 50/242: adapted for protecting batteries against vibrations, collision impact or swelling - H01M 10/613: Cooling or keeping cold - H01M 10/625: Vehicles - H01M 10/6563: with forced flow, e.g. by blowers - H01M 50/204: Racks, modules or packs for multiple batteries or multiple cells - H01M 50/209: adapted for prismatic or rectangular cells (H01M50/216 takes precedence) - H01M 50/244: Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method - H01M 50/249: specially adapted for aircraft or vehicles, e.g. cars or trains (constructional details of batteries specially adapted for electric vehicles B60L50/64) - H01M 50/271: Lids or covers for the racks or secondary casings - H01M 50/30: Arrangements for facilitating escape of gases - H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane - Y02E 60/10: Energy storage using batteries - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract Disclosed is an echelon utilization battery pack with good seismic resistance. The echelon utilization battery pack involves a battery pack body and a battery, wherein the battery pack body is of a hollow cuboid structure, fixed seats are fixed at two ends of the inner bottom of the battery pack body, first fixed shafts are fixed between the two fixed seats, the first fixed shafts are slidably connected with a mounting seat in a sleeving mode, a first sliding groove is formed in the top of the mounting seat, second fixed shafts are fixed in the first sliding groove, and the two ends of the second fixed shafts are slidably connected with first sliding blocks. ## Claims ### Claim 1 An echelon utilization battery pack with good seismic resistance, comprising: a battery pack body and a battery, wherein the battery pack body is of a hollow cuboid structure, fixed seats are fixed at two ends of the inner bottom of the battery pack body, first fixed shafts are fixed between the two fixed seats, the first fixed shafts are slidably connected with a mounting seat in a sleeving mode, a first sliding groove is formed in the top of the mounting seat, second fixed shafts are fixed in the first sliding groove, the two ends of the second fixed shafts are slidably connected with first sliding blocks, the tops of the first sliding blocks are slidably connected with a first shell in a sliding mode, a buffer plate is fixed to the top of the first shell, threaded rods are rotatably connected to the inner walls of the battery pack body through bearings respectively, the threaded rods are inserted into the battery pack body and connected with a second shell, a fourth fixed shaft is fixed into the second shell, second sliding blocks are slidably connected to the two ends of the fourth fixed shaft, connecting rods are rotatably connected to the side faces of the two second sliding blocks respectively, a clamping block is rotatably connected to one end of each of the connecting rods, a third fixed shaft is fixed to the side face of the battery, the third fixed shaft is slidably connected with the clamping block, and a seal cover is mounted on the top of the battery pack body. ### Claim 2 (depends on 1) The echelon utilization battery pack with good seismic resistance according to claim 1, wherein first springs are mounted between the mounting seat and the fixed seats, and the first springs are connected to the first fixed shafts in the sleeving mode. ### Claim 3 (depends on 1) The echelon utilization battery pack with good seismic resistance according to claim 1, wherein fourth springs are mounted between the first sliding blocks and the sliding groove, and the fourth springs are connected to the second fixed shafts in the sleeving mode. ### Claim 4 (depends on 1) The echelon utilization battery pack with good seismic resistance according to claim 1, wherein the number of the first fixed shafts and the number of the second fixed shafts are both two groups, and the two groups of first fixed shafts and the two groups of second fixed shafts are both parallel to the inner bottom of the battery pack body. ### Claim 5 (depends on 1) The echelon utilization battery pack with good seismic resistance according to claim 1, wherein the longitudinal sections of the first sliding blocks are of n-shaped structures, the first shell is of a hollow cuboid structure, and second springs are mounted between the interior of the first shell and the first sliding blocks. ### Claim 6 (depends on 5) The echelon utilization battery pack with good seismic resistance according to claim 5, wherein rubber mats are mounted between the inner bottoms of the first sliding blocks and the inner top of the first shell. ### Claim 7 (depends on 1) The echelon utilization battery pack with good seismic resistance according to claim 1, wherein third springs are mounted between the side faces of the second sliding blocks and the inner wall of the second shell, and the third springs are connected to the fourth fixed shafts in the sleeving mode. ### Claim 8 (depends on 1) The echelon utilization battery pack with good seismic resistance according to claim 1, wherein the seal cover is in sliding connection with the battery, and a cushion is arranged between the seal cover and the battery. ### Claim 9 (depends on 8) The echelon utilization battery pack with good seismic resistance according to claim 8, wherein a draught fan and ventilation holes are arranged in the two ends of the top of the seal cover respectively, and dustproof cotton is arranged in an air inlet of the draught fan and the ventilation holes respectively.