# US 2017/0282867 A1 · Battery pack of electric vehicle, electric vehicle chassis and method for replacing battery modules

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- Number: US 2017/0282867 A1
- Document ID: US20170282867A1
- Status: Published application
- Kind: A1
- Application number: 15/585,784
- Filed: 2017-05-03
- Published: 2017-10-05
- Earliest claimed: 2015-03-16
- Assignees: Thunder Power New Energy Vehicle Development Company Limited
- Applicants: Thunder Power New Energy Vehicle Development Company Limited
- Inventors: Wellen Sham
- Web page: https://patentgrep.com/patent/US20170282867A1

## CPC

- B60K 1/04: of the electric storage means for propulsion
- B60L 50/64: Constructional details of batteries specially adapted for electric vehicles
- B60L 50/66: {Arrangements of batteries}
- B62D 25/2036: {the subunits being side panels, sills or pillars (B62D21/157 takes precedence)}
- H01M 50/209: adapted for prismatic or rectangular cells (H01M50/216 takes precedence)
- H01M 50/24: adapted for protecting batteries from their environment, e.g. from corrosion (thermal insulation H01M10/658)
- 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 50/264: for cells or batteries, e.g. straps, tie rods or peripheral frames
- B60K 2001/0438: {Arrangement under the floor}
- B60K 2001/0472: {from below}
- B60Y 2200/91: Electric vehicles
- H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
- Y02T 90/12: Electric charging stations
- B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M)
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

Provided are systems and methods for configuring battery packs in electric vehicles. A battery pack may include a plurality of battery modules, a support part, and at least one opening provided on the support part. The support part may be provided with a bottom for supporting the plurality of battery modules, sides, a top, and an accommodation space formed by the bottom, the sides, and the top for accommodating the plurality of battery modules. The opening provided on the bottom of the support part may enable the plurality of battery modules to be passed through the at least one opening and be detachably mounted to the bottom of the support part so as to be supported by the bottom.

## Claims

### Claim 1

A method for replacing a battery module in an electric vehicle, the method comprising:
identifying a first battery module from among a plurality of battery modules in a battery pack, wherein the battery pack is located within the electric vehicle and comprises:
the plurality of battery modules;
a support part for supporting the plurality of battery modules, wherein at least one opening provided on either a bottom or a side of the support part such that at least one of the plurality battery modules can pass through the at least one opening and be detachably mounted to either the bottom or the side of the support part;
a layer mounted above the top of the support part to cover the plurality of battery modules; and
a protector sheet mounted below the bottom of the support part to cover the plurality of battery modules;
detaching the first battery module from the bottom of the support part;
removing the first battery module from the support part by passing the first battery module through the at least one opening;
inserting a second battery module into the support part by passing the second battery module through the at least one opening; and
mounting the second battery module to the bottom of the support part.

### Claim 2 (depends on 1)

The method of claim 1 wherein the second battery module has a higher electrical potential energy than the first battery module.

### Claim 3 (depends on 2)

The method of claim 2, further comprising:
removing a protector sheet from below the bottom of the support part.

### Claim 4 (depends on 2)

The method of claim 2, further comprising:
removing fasteners that are configured to mount the first battery module to the bottom of the support part.