WO2022202711A1 - バッテリーユニット - Google Patents
バッテリーユニット Download PDFInfo
- Publication number
- WO2022202711A1 WO2022202711A1 PCT/JP2022/012822 JP2022012822W WO2022202711A1 WO 2022202711 A1 WO2022202711 A1 WO 2022202711A1 JP 2022012822 W JP2022012822 W JP 2022012822W WO 2022202711 A1 WO2022202711 A1 WO 2022202711A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- vehicle
- elastic member
- battery
- fixing
- hole
- Prior art date
Links
- 230000004308 accommodation Effects 0.000 claims description 5
- 230000000452 restraining effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 241001247986 Calotropis procera Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
- B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
- B62D25/2036—Floors or bottom sub-units in connection with other superstructure subunits the subunits being side panels, sills or pillars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/242—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries against vibrations, collision impact or swelling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
- H01M50/291—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
- B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
- B60K2001/0438—Arrangement under the floor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to battery units.
- Patent Document 1 discloses a structure in which an elastic sealing material is provided in a gap formed between a battery pack and a locker.
- the present invention has been made in view of these points, and it is an object of the present invention to provide a battery unit that facilitates increasing the amount of batteries provided between a plurality of frames.
- a first aspect of the present invention includes a plurality of batteries, and a housing portion fixed between a plurality of frames of a vehicle and housing the plurality of batteries, wherein the batteries include a plurality of batteries a cell, a fixing portion for fixing the plurality of battery cells to the accommodating portion, and an elastic member provided in the fixing portion for suppressing stress from being applied to the battery due to forces applied from the plurality of frames. and a battery unit.
- the plurality of battery cells may be arranged side by side in the horizontal direction of the vehicle, and the elastic member may expand and contract in the height direction of the vehicle orthogonal to the horizontal direction.
- the fixing portion is provided on both sides of the plurality of battery cells in the vehicle width direction of the vehicle, and a first component for holding the plurality of battery cells in the longitudinal direction of the vehicle. and a second part for connecting the battery cell to the accommodating portion, and a hole for accommodating the elastic member may be formed in the second part.
- a plurality of holes for accommodating a plurality of the elastic members may be formed in the second part at different positions in the longitudinal direction of the vehicle.
- FIG. 4 shows a state in which the battery unit according to the present embodiment is installed in a vehicle; The structure near the end plate of the battery is shown. A state in which a conventional battery unit as a comparative example is provided in a vehicle is shown.
- FIG. 3 shows a state in which a plurality of frames on which conventional battery units are provided are displaced; FIG. 3 is a cross-sectional view taken along the line XX of FIG. 2; 4 shows the structure of an elastic member;
- FIG. 1 is a diagram showing a state in which a battery unit S according to this embodiment is provided in a vehicle A. As shown in FIG.
- the battery unit S is used as a power battery for driving a motor for driving a hybrid vehicle or an EV (Electric Vehicle) vehicle.
- the battery unit S is mounted on a frame structure 1 of the vehicle A, which will be described later.
- Vehicle A has a frame structure 1.
- Frame structure 1 includes, for example, a ladder frame.
- the frame structure 1 extends in the longitudinal direction of the vehicle A. As shown in FIG.
- the frame structure 1 has multiple frames 11 .
- a left side member 111L, a right side member 111R, and a cross member 112 are provided as a plurality of frames 11 in the frame structure 1 .
- the left side member 111L extends in the longitudinal direction of the vehicle A.
- the left side member 111L is provided on the left side of the vehicle A in the vehicle width direction.
- the right side member 111R extends in the vehicle A front-rear direction.
- the right side member 111R is provided on the right side of the vehicle A in the vehicle width direction.
- the cross member 112 is provided extending in the vehicle width direction of the vehicle A between the left side member 111L and the right side member 111R.
- a plurality of cross members 112 are provided in the longitudinal direction of the vehicle A.
- the battery unit S is provided between the left side member 111L and the right side member 111R in the vehicle width direction of the vehicle A. As shown in FIG.
- FIG. 2 is a diagram showing the structure near the end plate 222 of the battery 2.
- the battery unit S has a plurality of batteries 2 , a housing portion 3 and a plurality of fixing members 4 .
- the battery 2 stores electric power.
- the plurality of batteries 2 are arranged side by side in the front-rear direction of the vehicle A. As shown in FIG.
- the number of batteries 2 is arbitrary.
- the direction in which the plurality of batteries 2 are arranged is arbitrary. Details of the battery 2 will be described later.
- the housing portion 3 is fixed between a plurality of frames 11 of the vehicle A.
- the accommodation portion 3 is fixed between the left side member 111L and the right side member 111R in the vehicle width direction of the vehicle A.
- the housing portion 3 houses a plurality of batteries 2 .
- the housing portion 3 is, for example, box-shaped. The details of the housing portion 3 will be described later.
- the fixing member 4 is a component for connecting the battery 2 and the housing portion 3 .
- the fixing member 4 includes, for example, bolts. Details of the fixing member 4 will be described later.
- the battery 2 has a plurality of battery cells 21 , fixing portions 22 and elastic members 23 .
- the battery cell 21 stores electric power.
- the battery cell 21 is plate-shaped, for example.
- a plurality of battery cells 21 are arranged side by side in the horizontal direction of the vehicle A. As shown in FIG.
- the plurality of battery cells 21 are arranged side by side in the vehicle width direction of the vehicle A. As shown in FIG.
- the number of battery cells 21 is arbitrary.
- the direction in which the plurality of battery cells 21 are arranged is arbitrary.
- the fixing portion 22 is a component for fixing the plurality of battery cells 21 to the housing portion 3 . Details of the fixing portion 22 will be described later.
- the elastic member 23 is provided on the fixed portion 22 . The elastic member 23 suppresses stress from being applied to the battery 2 by forces applied from the plurality of frames 11 . Details of the elastic member 23 will be described later.
- FIG. 3 is a diagram showing a state in which a conventional battery unit T as a comparative example is provided in a vehicle B.
- the battery 6 does not have an elastic member as compared with the battery unit S, and a plurality of elastic members are provided between the housing portion 7 housing the plurality of batteries 6 and the plurality of frames 11 . It differs in that a member 8 is provided.
- a conventional battery unit T is mounted on the frame structure 1 of the vehicle B.
- a conventional battery unit T has a plurality of batteries 6 and a housing portion 7 .
- the battery 6, like the battery 2, stores electric power.
- the plurality of batteries 6 are arranged side by side in the front-rear direction of the vehicle B.
- the battery 6 has a plurality of battery cells (not shown) and a fixing portion 62 .
- the fixing portion 62 is a component for fixing a plurality of battery cells to the housing portion 7, similar to the fixing portion 22.
- a plurality of battery cells are fixed to the housing portion 7 by fixing portions 62 .
- FIG. 4 is a diagram showing a state in which a plurality of frames 11 provided with conventional battery units T are displaced.
- the frame structure 1 is twisted in the vehicle width direction of the vehicle B, thereby displacing the left side member 111L and the right side member 111R. Therefore, the battery 6 provided between the left side member 111L and the right side member 111R is likely to be stressed by the force applied from the left side member 111L and the right side member 111R.
- the frame structure 1 when the frame structure 1 is twisted in the vehicle width direction of the vehicle B, the left side member 111L moves upward and the right side member 111R moves downward in the height direction of the vehicle B. There is In this case, a force is applied to the battery 6 so that the left end of the battery 6 moves upward and the right end of the battery 6 moves downward. Therefore, stress is likely to occur in the battery 6 . Further, for example, when the frame structure 1 is twisted in the longitudinal direction of the vehicle B, the battery 6 is twisted in the longitudinal direction of the vehicle B due to displacement of the front end and the rear end of the battery 6, respectively. easily occur.
- the battery unit S of this embodiment is fixed between a plurality of frames 11 of the vehicle A, as described above, and has a housing portion 3 for housing a plurality of batteries 2. is provided on the fixed portion 22 .
- an elastic member 23 is provided to suppress stress from being applied to the battery 2 by forces applied from the plurality of frames 11 . Therefore, in the battery unit S, an elastic member is not provided between the frame 11 and the housing portion 3, and there is no need to secure a space for the housing portion 3 to be displaced. Therefore, in the battery unit S, it is possible to easily increase the amount of the batteries 2 provided between the plurality of frames 11 .
- the fixing portion 22 has multiple bind bars 221 and multiple end plates 222 .
- the bind bar 221 is a first component for restraining the plurality of battery cells 21 arranged side by side in the vehicle width direction of the vehicle A from the front-rear direction of the vehicle A. As shown in FIG. The bind bar 221 extends in the vehicle width direction of the vehicle A. As shown in FIG. A plurality of bind bars 221 are provided in front and rear of the plurality of battery cells 21 arranged side by side in the vehicle width direction of the vehicle A, respectively.
- Both ends of the bind bar 221 in the vehicle width direction of the vehicle A are connected to end plates 222 provided on both sides in the vehicle width direction of the vehicle A of the plurality of battery cells 21 arranged side by side in the vehicle width direction of the vehicle A. ing.
- FIG. 5 is a cross-sectional view taken along the line XX of FIG. 2.
- FIG. The end plate 222 is a second component for connecting the plurality of battery cells 21 to the housing portion 3 .
- the end plates 222 are provided on both sides of the plurality of battery cells 21 arranged side by side in the vehicle width direction of the vehicle A, respectively.
- End plate 222 has a plurality of holes 223 .
- the elastic member 23 is inserted into the hole 223 .
- a plurality of holes 223 are formed at both ends of the end plate 222 in the longitudinal direction of the vehicle A, respectively.
- the plurality of battery cells 21 are arranged side by side in the vehicle width direction of the vehicle A and fixed. Specifically, the plurality of battery cells 21 are fixed by end plates 222 arranged on both sides of the plurality of battery cells 21 in the vehicle width direction, and bind bars 221 arranged in front and behind the plurality of battery cells 21. It is The plurality of battery cells 21 are connected to the housing portion 3 by connecting the end plates 222 to the housing portion 3 .
- FIG. 6 is a diagram showing the structure of the elastic member 23.
- Elastic member 23 includes, for example, a rubber bush.
- a plurality of elastic members 23 are provided at both ends of the end plate 222 in the longitudinal direction of the vehicle A, respectively.
- the elastic member 23 expands and contracts in the height direction of the vehicle A perpendicular to the horizontal direction of the vehicle A. As shown in FIG. Therefore, in the battery unit S, displacement of the plurality of battery cells 21 and the fixing portion 22 in the height direction of the vehicle A due to the force applied from the plurality of frames 11 can be suppressed.
- the elastic member 23 has an outer cylindrical portion 231, an inner cylindrical portion 232, and an elastic member main body 234.
- the outer cylindrical portion 231 has its outer surface fixed to the inner surface of the hole 223 .
- the inner cylindrical portion 232 is provided inside the outer cylindrical portion 231 in the radial direction of the elastic member 23 .
- the lower end of the inner cylindrical portion 232 in the height direction of the vehicle A is in contact with the housing portion 3 below the lower end of the outer cylindrical portion 231 in the height direction of the vehicle A.
- the inner cylindrical portion 232 has a hole 233 .
- a fixing member 4 is inserted into the hole 233 .
- the elastic member main body 234 is provided between the outer cylindrical portion 231 and the inner cylindrical portion 232 .
- the housing portion 3 has a plurality of holes 31 .
- a fixing member 4 is inserted into the hole 31 .
- the fixing member 4 extends in the height direction of the vehicle A.
- the fixing member 4 is a component for connecting the elastic member 23 and the housing portion 3 .
- the fixing member 4 is fixed to the housing portion 3 while being inserted into the hole 233 of the elastic member 23 inserted into the hole 223 of the fixing portion 22 and the hole 31 of the housing portion 3 .
- the end plate 222 inserts the fixing member 4 into the hole 233 of the elastic member 23 inserted into the hole 223 of the end plate 222 and the hole 31 of the housing portion 3, and tightens the inserted fixing member 4 to the housing portion 3.
- it is connected to the housing portion 3 .
- a space is formed between the plurality of battery cells 21, the fixing portion 22, the outer cylindrical portion 231, the elastic member body 234, and the housing portion 3 in the height direction of the vehicle A. It is Therefore, in the battery unit S, even if force is applied from the plurality of frames 11, the expansion and contraction of the elastic member main body 234 can suppress the generation of stress in the plurality of battery cells 21 and the fixing portions 22. can.
- the fixing member 4 is inserted into the hole 233 of the elastic member 23 inside the hole 223 of the fixing portion 22 and the hole 31 of the housing portion 3 as described above. It is connected by tightening the fixing member 4 to the housing portion 3 . Therefore, the area where the elastic member 23 is exposed to the outside of the fixing portion 22 can be reduced. As a result, in the battery unit S, it is possible to easily increase the amount of the battery 2 accommodated in the accommodation portion 3 while the battery 2 has the elastic member 23 .
- the battery unit S according to the present embodiment includes a plurality of batteries 2 and an accommodating portion 3 that is fixed between a plurality of frames 11 of the vehicle A and accommodates the plurality of batteries 2 .
- the battery 2 is provided with a plurality of battery cells 21 , a fixing portion 22 for fixing the plurality of battery cells 21 to the housing portion 3 , and the fixing portion 22 . and an elastic member 23 for suppressing stress from being generated in 2 .
- the battery unit S according to the present embodiment is thus fixed between the frames 11 of the vehicle A, and has the housing portion 3 that houses the batteries 2 .
- the battery 2 has an elastic member 23 that is provided on the fixed portion 22 and that suppresses stress from being applied to the battery 2 by forces applied from the plurality of frames 11 . Therefore, in the battery unit S, an elastic member is not provided between the frame 11 and the housing portion 3, and there is no need to secure a space for the housing portion 3 to be displaced. Therefore, in the battery unit S, it is possible to easily increase the amount of the batteries 2 provided between the plurality of frames 11 .
- a Vehicle 1 Frame structure 11 Frame 111L Left side member 111R Right side member 112 Cross member S Battery unit 2 Battery 21 Battery cell 22 Fixed portion 221 Bind bar 222 End plate 223 Hole 23 Elastic member 231 Outer cylindrical portion 232 Inner cylindrical portion 233 Hole 234 Elastic member body 3 Accommodating portion 31 Hole 4 Fixing member B Vehicle T Conventional battery unit 6 Battery 62 Fixing portion 7 ...Accommodating portion 8...Elastic member
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Battery Mounting, Suspending (AREA)
- Body Structure For Vehicles (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
Description
図1は、本実施形態に係るバッテリーユニットSが車両Aに設けられている状態を示す図である。
図2は、バッテリー2のエンドプレート222付近の構造を示す図である。
バッテリーユニットSは、複数のバッテリー2、収容部3、及び複数の固定部材4を有する。バッテリー2は、電力を蓄電する。複数のバッテリー2は、車両Aの前後方向において並べて配置されている。バッテリー2の数は任意である。また、複数のバッテリー2が並べられている方向は任意である。バッテリー2の詳細は後述する。
バッテリー2は、複数のバッテリーセル21、固定部22、及び弾性部材23を有する。バッテリーセル21は、電力を蓄電する。バッテリーセル21は、例えば板形状である。複数のバッテリーセル21が、車両Aの水平方向において並べて配置されている。複数のバッテリーセル21は、車両Aの車幅方向において並べて配置されている。バッテリーセル21の数は任意である。また、複数のバッテリーセル21が並べられている方向は任意である。
従来のバッテリーユニットTは、バッテリーユニットSと比べて、バッテリー6が弾性部材を有しておらず、複数のバッテリー6を収容している収容部7と複数のフレーム11との間に複数の弾性部材8が設けられている点で異なる。
車両Bの走行時には、例えばフレーム構造1が車両Bの車幅方向においてねじられることで、左サイドメンバ111Lと右サイドメンバ111Rがそれぞれ変位する。このため、左サイドメンバ111Lと右サイドメンバ111Rとの間に設けられているバッテリー6には、左サイドメンバ111L、及び右サイドメンバ111Rから加わる力によって応力が生じ易い。
エンドプレート222は、複数のバッテリーセル21を収容部3に接続するための第2部品である。エンドプレート222は、車両Aの車幅方向において並べて配置された複数のバッテリーセル21の両側にそれぞれ設けられている。エンドプレート222は、複数の穴223を有する。穴223には、弾性部材23が挿入されている。複数の穴223が、エンドプレート222の車両Aの前後方向における両端にそれぞれ形成されている。
図6は、弾性部材23の構造を示す図である。
弾性部材23は、例えばゴムブッシュを含む。複数の弾性部材23が、エンドプレート222の車両Aの前後方向における両端にそれぞれ設けられている。弾性部材23は、車両Aの水平方向と直交する車両Aの高さ方向において伸縮する。したがって、バッテリーユニットSにおいては、複数のフレーム11から加わる力によって複数のバッテリーセル21及び固定部22が車両Aの高さ方向において変位するのを抑制することができる。
本実施形態に係るバッテリーユニットSは、複数のバッテリー2と、車両Aの複数のフレーム11の間に固定されており、複数のバッテリー2を収容する収容部3と、を有する。そして、バッテリー2は、複数のバッテリーセル21と、複数のバッテリーセル21を収容部3に固定するための固定部22と、固定部22に設けられており、複数のフレーム11から加わる力によってバッテリー2に応力が生じるのを抑制する弾性部材23と、を有する。
1・・・フレーム構造
11・・・フレーム
111L・・・左サイドメンバ
111R・・・右サイドメンバ
112・・・クロスメンバ
S・・・バッテリーユニット
2・・・バッテリー
21・・・バッテリーセル
22・・・固定部
221・・・バインドバー
222・・・エンドプレート
223・・・穴
23・・・弾性部材
231・・・外側円筒部
232・・・内側円筒部
233・・・穴
234・・・弾性部材本体
3・・・収容部
31・・・穴
4・・・固定部材
B・・・車両
T・・・従来のバッテリーユニット
6・・・バッテリー
62・・・固定部
7・・・収容部
8・・・弾性部材
Claims (6)
- 複数のバッテリーと、
車両の複数のフレームの間に固定されており、前記複数のバッテリーを収容する収容部と、
を有し、
前記バッテリーは、
複数のバッテリーセルと、
前記複数のバッテリーセルを前記収容部に固定するための固定部と、
前記固定部に設けられており、前記複数のフレームから加わる力によって前記バッテリーに応力が生じるのを抑制する弾性部材と、
を有するバッテリーユニット。 - 前記複数のバッテリーセルは、前記車両の水平方向において並べて配置されており、
前記弾性部材は、前記水平方向と直交する前記車両の高さ方向において伸縮する、
請求項1に記載のバッテリーユニット。 - 前記車両の高さ方向において延伸し、前記弾性部材と前記収容部を接続するための固定部材をさらに有し、
前記固定部には、前記弾性部材が挿入されている第1の穴が形成されており、
前記弾性部材は、
外側面が前記第1の穴の内側面に固定されている外側円筒部と、
前記弾性部材の径方向において前記外側円筒部の内側に設けられており、前記高さ方向における下端が前記外側円筒部の前記高さ方向における下端よりも下方において前記収容部と接し、第2の穴が形成されている内側円筒部と、
前記外側円筒部と前記内側円筒部との間に設けられている弾性部材本体と、
を有し、
前記収容部には、前記固定部材が挿入されている第3の穴が形成されており、
前記固定部材は、前記固定部の前記第1の穴に挿入された前記弾性部材の前記第2の穴、及び前記収容部の前記第3の穴に挿入された状態で、前記収容部に固定されている、
請求項1又は2に記載のバッテリーユニット。 - 前記弾性部材と前記収容部との間に空間が形成されている、
請求項3に記載のバッテリーユニット。 - 前記固定部は、
前記複数のバッテリーセルを前記車両の前後方向から抑えるための第1部品と、
前記複数のバッテリーセルの前記車両の車幅方向における両側に設けられており、前記複数のバッテリーセルを前記収容部に接続するための第2部品と、
を有し、
前記第2部品に前記弾性部材を収容するための穴が形成されている、
請求項1から4のいずれか一項に記載のバッテリーユニット。 - 前記第2部品における前記車両の前後方向において異なる位置に複数の前記弾性部材を収容するための複数の穴が形成されている、
請求項5に記載のバッテリーユニット。
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US18/546,125 US20240234900A9 (en) | 2021-03-22 | 2022-03-18 | Battery unit |
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