# US 2022/0037731 A1 · High-voltage battery-mounting structure for vehicle

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- Number: US 2022/0037731 A1
- Document ID: US20220037731A1
- Status: Published application
- Kind: A1
- Application number: 17/157,177
- Filed: 2021-01-25
- Published: 2022-02-03
- Earliest claimed: 2020-08-03
- Assignees: Hyundai Motor Company; Kia Motors Corporation
- Applicants: Hyundai Motor Company; Kia Motors Corporation
- Inventors: Ji Woong Jung; Yong Hwan Choi; Yu Ri Oh; Tae Hyuck Kim; Gyung Hoon Shin; Hae Kyu Lim
- Web page: https://patentgrep.com/patent/US20220037731A1

## CPC

- 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)
- B60K 1/04: of the electric storage means for propulsion
- H01M 10/613: Cooling or keeping cold
- H01M 10/625: Vehicles
- H01M 10/6556: Solid parts with flow channel passages or pipes for heat exchange (closed pipes H01M10/6552)
- H01M 10/6568: characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
- H01M 50/244: Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
- H01M 50/262: with fastening means, e.g. locks
- B60K 11/02: with liquid cooling
- B60K 2001/005: {the electric storage means}
- B60K 2001/0438: {Arrangement under the floor}
- B60L 50/66: {Arrangements of batteries}
- 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
- 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
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

The present disclosure includes: a mid-plate configured to support a bottom side of a battery module from a bottom side of a vehicle body; a fastening member fastened through a space in which the mid-plate and the battery module are mounted and configured to fix the mid-plate to the vehicle body; a mounting pipe provided at a top side of the mid-plate and configured to support a pressure applied to the vehicle body from a bottom side of the mid-plate, wherein the fastening member passes through the mounting pipe; a mounting support configured to fix the mounting pipe to the mid-plate, wherein the fastening member passes through the mounting support; and a shield plate coupled to the bottom side of the mid-plate and configured to surround a bottom-side coupling portion of the mounting support while allowing the fastening member to pass therethrough.

## Claims

### Claim 1

A high-voltage battery mounting structure for a vehicle, the structure comprising:
a mid-plate configured to support a bottom side of a battery module from a bottom side of a vehicle body;
a fastening member fastened through a space in which the mid-plate and the battery module are mounted and configured to fix the mid-plate to the vehicle body;
a mounting pipe provided at a top side of the mid-plate and configured to support a pressure applied to the vehicle body from a bottom side of the mid-plate, wherein the fastening member passes through the mounting pipe;
a mounting support configured to fix the mounting pipe to the mid-plate, wherein the fastening member passes through the mounting support; and
a shield plate coupled to the bottom side of the mid-plate and configured to surround a bottom-side coupling portion of the mounting support while allowing the fastening member to pass therethrough.

### Claim 2 (depends on 1)

The structure of claim 1, wherein the mounting support includes:
a central portion being bent upward and configured to be coupled to a bottom side of the mounting pipe; and
a peripheral portion having a top surface coupled to the bottom side of the mid-plate,
wherein the shield plate is configured to surround the peripheral portion of the mounting support from a bottom side of the peripheral portion.

### Claim 3 (depends on 2)

The structure of claim 2, wherein:
the central portion of the mounting support is coupled to a lower end of the mounting pipe by welding,
a top surface of the peripheral portion of the mounting support is coupled to the bottom side of the mid-plate by welding, and
the shield plate is coupled to a bottom surface of the peripheral portion by an adhesive and is configured to surround a welded portion of the peripheral portion of the mounting support.

### Claim 4 (depends on 3)

The structure of claim 3, wherein the top surface of the peripheral portion of the mounting support is coupled to the bottom surface of the mid-plate by welding.

### Claim 5 (depends on 3)

The structure of claim 3, further comprising:
a cooling panel coupled between the mid-plate and the shield plate and configured to form a flow path of a refrigerant together with the mid-plate,
wherein the top surface of the peripheral portion mounting support is coupled to a bottom surface of the cooling panel by welding.

### Claim 6 (depends on 5)

The structure of claim 5, wherein an adhesive is locally applied to a space between the shield plate and the cooling panel.

### Claim 7 (depends on 6)

The structure of claim 6, wherein a plurality of beads are formed on the shield plate and in a shape protruding upward from the shield plate and wherein beads of the plurality of beads respectively have an elongated shape extending in a front-rear direction of the vehicle body.

### Claim 8 (depends on 7)

The structure of claim 7, wherein the adhesive is locally applied to a portion where the protruding beads of the shield plate contact the cooling panel.

### Claim 9

A high-voltage battery case for a vehicle, the case comprising:
a case frame configured to surround a periphery of a battery module;
a mid-plate configured to finish a bottom side of the case frame and support a bottom side of the battery module;
a mounting pipe provided on a top side of the mid-plate;
a mounting support configured to fix the mounting pipe to the mid-plate;
a fastening member configured to fixedly press the mid-plate against the bottom side of the vehicle body, penetrate the mounting pipe, and pass through the mounting support; and
a shield plate coupled to a bottom side of the mid-plate and configured to surround a bottom-side coupling portion of the mounting support while allowing the fastening member to pass therethrough.

### Claim 10 (depends on 9)

The case of claim 9, wherein the mounting support includes:
a central portion configured to protrude upward and having a hole through which the fastening member passes; and
a peripheral portion protruding downward relative to the central portion,
wherein a top surface of the central portion is coupled to a lower end of the mounting pipe, and
wherein a top surface of the peripheral portion is coupled to the bottom side of the mid-plate.

### Claim 11 (depends on 10)

The case of claim 10, wherein, in the shield plate, a portion meeting the peripheral portion of the mounting support protrudes upward and is configured to be coupled to a bottom surface of the peripheral portion of the mounting support.

### Claim 12 (depends on 11)

The case of claim 11, wherein the central portion of the mounting support is coupled to the lower end of the mounting pipe by welding,
the top surface of the peripheral portion of the mounting support is coupled to the bottom side of the mid-plate by welding, and
the shield plate is coupled to a bottom surface of the peripheral portion by an adhesive and is configured to surround a welded portion of the peripheral portion of the mounting support.

### Claim 13 (depends on 12)

The case of claim 12, further comprising:
a cooling panel coupled between the mid-plate and the shield plate and configured to form a flow path of a refrigerant together with the mid-plate,
wherein the top surface of the peripheral portion of the mounting support is coupled to a bottom surface of the cooling panel by welding.

### Claim 14 (depends on 13)

The case of claim 13, wherein a plurality of beads are formed on the shield plate in a shape protruding upward from the shield plate and have an elongated shape extending in a front-rear direction of the vehicle body.

### Claim 15 (depends on 14)

The case of claim 14, wherein an adhesive is applied to a portion in which the plurality of beads protrude upward and couples the shield plate with the cooling panel.
