WO2007100118A1 - 蓄電パックの車載構造 - Google Patents
蓄電パックの車載構造 Download PDFInfo
- Publication number
- WO2007100118A1 WO2007100118A1 PCT/JP2007/054120 JP2007054120W WO2007100118A1 WO 2007100118 A1 WO2007100118 A1 WO 2007100118A1 JP 2007054120 W JP2007054120 W JP 2007054120W WO 2007100118 A1 WO2007100118 A1 WO 2007100118A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- screw
- storage pack
- electricity storage
- vehicle
- opening
- Prior art date
Links
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/04—Arrangement of batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
- B62D21/152—Front or rear frames
-
- 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
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
-
- 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
- H01M50/271—Lids or covers for the racks or secondary casings
-
- 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
- B60K2001/0416—Arrangement in the rear part of the vehicle
-
- 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
- H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
-
- 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 an on-vehicle structure of a power storage pack.
- a secondary battery or a capacitor is used.
- the power storage device is housed in a case and mounted on the vehicle body as a power storage pack.
- the front bracket is fixed to the front upper surface of the flange of the battery carrier with bolts, and the rear upper surface of the flange of the battery carrier is
- a battery carrier support structure for an electric vehicle in which a rear placket is fixed to a closing force with bolts.
- a fold bit is formed in the vehicle longitudinal direction intermediate portion of the lower wall portion of the mouth cabinet.
- the rear part of the rocking force is bent downward with this folding beat as the folding part.
- the sliding load of the front bolt is smaller than the sliding load of the rear bolt.
- a battery mounting structure in which a weakened portion that is weak only in the front-rear direction strength is formed while being maintained.
- This battery mounting structure is When the spare tire, which is guided by the inclined part at the time of the collision and jumps up in front of the vehicle, collides with the rear part of the battery, it is formed so that the stay can be changed at the weak part. According to the structure, it is disclosed that the battery can be prevented from being damaged due to the collision of the spare tire that is flipped up at the time of the collision. Further, it is disclosed that a slide structure may be formed by providing a long hole in the flange with a rear end opened in place of the long hole formed in the steel. '
- the side frame of the battery frame is fixed by a bolt 10 and a nut plate, and a front slit portion is provided at the front side and the rear side of the bolt hole of the side member.
- a battery frame fixing part structure in which a rear slit part is formed is disclosed inside the side member. Inside the side member, a rain hose is passed from the position corresponding to the rear part of the side frame to the rear end of the side member. The front end of the rain hose is fixed to the side member by passing a bolt through the through hole. A slit is formed in the rear part of the through hole of the rain hose. According to this electric vehicle battery frame fixing structure, it is disclosed that the movement of the battery frame during a collision can be prevented while suppressing an increase in the weight of the vehicle body.
- Japanese Patent Application Laid-Open No. 7-1 1 7 4 90 discloses a battery support structure for an electric vehicle in which a mounting hole is formed in the flange of the badeli carrier and a bolt is passed through the mounting hole. ing. The battery carrier is attached to the mouth force with a predetermined tightening force using bolts. A thin part is formed in the flange of the battery carrier adjacent to the mounting hole. According to this battery support structure, it is disclosed that the rigidity of the support part of the battery carrier supported by the book can be improved and the kinetic energy of the battery carrier can be absorbed.
- a battery carrier flange is provided with a plurality of holes that do not communicate with each other along the longitudinal direction of the vehicle body. It is disclosed.
- the battery support structure of the electric vehicle to improve the rigidity of the support portion of the rate ⁇ book supporting 'equity is the' Roh Tsu Teri carrier, also Patteri support which is possible to absorb the kinetic energy of the Patteri Kiyaria can 1 It is disclosed that a structure can be obtained.
- the battery pack is used to support battery packs such as 7 ⁇ panels and side members. It is fixed to the support member.
- the above-mentioned patent document discloses an in-vehicle structure of a power storage pack formed so as to absorb the amount of impact when an impact is applied from the front-rear direction of the vehicle body.
- $ donation
- the member that supports the battery pack is bent, bolts are inserted through holes formed at intervals, and bolts break between the through holes By doing so, it is designed to absorb energy against impacts such as collisions. .
- An object of the present invention is to provide an on-vehicle structure for an electric storage pad that suppresses damage to the electric storage pack when the electric storage pack is subjected to an impact from a high external position.
- the on-vehicle structure of the electricity storage pack according to the present invention includes a support member for supporting the electricity storage pack.
- the electricity storage pack is fixed to the upper side of the support member with a first screw.
- the power storage patch is disposed on the vehicle rear side with respect to the rear seat.
- the storage bag pack has a first screw through hole for inserting the first screw.
- the I-th screw hole communicates the first opening, the first opening disposed on the rear side of the vehicle with respect to the first opening, and the first opening and the second opening. And a communication portion formed to do so.
- the first opening above It is formed to be smaller than the head of the first screw.
- the second opening is formed to be larger than the head.
- the storage pack moves to the front side of the vehicle when an impact is applied to the storage pack from the rear side of the vehicle by shifting the position of the first screw from the first opening to the second opening. It is formed as follows.
- the power storage pack is formed so that the first screw is released from being fixed when the first screw is removed from the second opening.
- the electricity storage pack has a step portion formed so as to be stepped.
- the first screw through hole is formed in the stepped portion.
- the second opening is formed such that at least a part is formed in a portion higher than the first opening.
- the on-vehicle structure of the electricity storage pack according to the present invention includes a support member for supporting the electricity storage pack.
- the electricity storage pack is fixed to the upper side of the support member with a first screw.
- the power storage pack is disposed on the rear side of the vehicle with respect to the rear seat.
- the power storage pack has a first screw passage hole for passing the first screw.
- the first screw hole has a closed shape.
- the first screw through hole includes an opening and a moving part formed to extend from the opening toward the rear side of the vehicle.
- the said electricity storage pack has a thin part around the edge part of the said moving part. The thin portion is formed to be thinner than a portion around the thin portion.
- the power storage pack is formed such that after the power storage pack has moved to the front side of the vehicle, the thin portion is broken by the first screw, whereby the fixing by the first screw is released.
- the on-vehicle structure of the electricity storage pack according to the present invention includes a support member for supporting the electricity storage pack.
- the electricity storage pack is fixed to the upper side of the support member with a first screw.
- the power storage pack is disposed on the rear side of the vehicle with respect to the rear seat.
- the power storage pack has a first screw hole for allowing the first screw to pass therethrough.
- the first screw hole has a closed shape.
- the electricity storage pack has a thin portion around the first screw through hole. The thin part is thinner than the part around the thin part. It is formed so that.
- the power storage pack is formed to move to the front side of the vehicle when the impact is applied to the power storage pack from the rear side of the vehicle and the thin portion is split by the first screw.
- the power storage pack is formed such that after the power storage pack has moved to the front side of the vehicle, the thin portion is broken by the first screw, whereby the fixing by the first screw is released.
- the electricity storage pack includes a case for arranging the electricity storage device inside.
- the case includes a lower case for mounting the power storage device, and an upper case fixed to the lower case and formed to cover the power storage device.
- the lower case and the upper case are fixed to each other by a third screw.
- the third screw is formed so as not to fix the electricity storage pack and the support member.
- the on-vehicle structure of the electricity storage pack according to the present invention includes a support member for supporting the electricity storage pack.
- the power storage pack is fixed to the upper side of the support member with a second screw.
- the power storage pack is disposed on the rear side of the vehicle with respect to the rear seat.
- the support member has a second screw through hole for arranging the second screw.
- the support member has a retainer formed so as to close at least a part of the second screw through hole.
- the second screw is fixed to the retainer.
- the second screw through hole is formed so that the electric storage pack moves to the front side of the vehicle when an impact is applied to the electric storage pack from the rear side of the vehicle.
- the support member and the electricity storage pack are formed such that when the electricity storage pack moves to the front side of the vehicle, the retainer is broken and the fixation by the second screw is released.
- the retainer has a smashing auxiliary portion formed around the second screw through hole.
- the destruction assisting part has at least one of a notch part and a hole part.
- the on-vehicle structure of the electricity storage pack includes a support member for supporting the electricity storage pack.
- the electricity storage pack is fixed to the upper side of the support member with a first screw.
- the power storage pack is disposed on the rear side of the vehicle with respect to the rear seat.
- the power storage pack has a first screw through hole for inserting the first screw.
- the first screw through hole has a closed shape.
- the first screw insertion hole is connected to the electricity storage pack.
- FIG. 1 is a first schematic cross-sectional view of the battery pack portion in the first embodiment.
- FIG. 2 is a schematic perspective view of the battery pack in the first embodiment.
- FIG. 3 is a schematic exploded perspective view of the battery pack in the first embodiment.
- FIG. 4 is a second schematic cross-sectional view of the battery pack portion according to the first embodiment.
- FIG. 5 is a schematic exploded perspective view of the support member in the first embodiment.
- FIG. 6 is an enlarged schematic plan view of a leg portion of the lower case in the first embodiment.
- FIG. 7 is a first enlarged schematic plan view of the front portion of the battery pack in the first embodiment.
- FIG. 8 is a second enlarged schematic plan view of the front portion of the battery pack in the first embodiment. .
- FIG. 9 is a third enlarged schematic plan view of the front portion of the battery pack in the first embodiment.
- FIG. 10 is a fourth enlarged schematic plan view of the front portion of the battery pack in the first embodiment.
- FIG. 11 is a third schematic cross-sectional view of the battery pack portion in the first embodiment.
- FIG. 12 is an enlarged schematic plan view of the front portion of another battery pack according to Embodiment 1.
- FIG. 13 is an enlarged schematic perspective view of the front portion of the battery pack according to the second embodiment.
- FIG. 14 is a first enlarged schematic plan view of the front part of the battery pack in the second embodiment.
- FIG. 14B is a second enlarged schematic plan view of the front portion of the battery pack in the second exemplary embodiment.
- FIG. 15 is a schematic cross-sectional view of the battery pack portion according to the third embodiment.
- FIG. 16 is a schematic perspective view of the battery pack according to Embodiment 3.
- FIG. 17 is a schematic exploded perspective view of the battery pack according to the third embodiment.
- FIG. 18 is a schematic cross-sectional view of the battery pack portion according to the fourth embodiment.
- FIG. 1 ′ 9 is a schematic exploded perspective view of the battery pack in the fourth embodiment.
- FIG. 20 is a schematic perspective view of the front mount in the fourth embodiment.
- FIG. 21 is an enlarged schematic bottom view of the retainer portion of the front mount in the fourth embodiment.
- FIG. 22 is an enlarged schematic bottom view of the mount when the retainer is broken in the fourth embodiment.
- an in-vehicle structure of a power storage pack according to the first embodiment of the present invention will be described.
- the impact mitigation means for releasing the electricity storage pack is formed in the electricity storage pack.
- Power storage devices such as secondary batteries and capacitors are housed in cases and mounted on automobiles.
- a device including a case and a power storage device housed in the case is referred to as a power storage pack.
- the electricity storage pack may contain other internal components.
- Other internal components include, for example, cooling devices for cooling power storage devices such as cooling ducts and cooling fans, and electrical devices that convert electric power.
- FIG. 1 is a schematic cross-sectional view of a battery pack portion in the present embodiment.
- Figure 1 shows the rear of the car body.
- the automobile in the present embodiment is a so-called sedan type automobile.
- the car has a body 61.
- the body 61 is formed to be almost square when viewed from above.
- the body 61 has a rear surface 61a.
- a rear wheel 60 is disposed at the rear of the vehicle body.
- Arrow 9 9 indicates the forward direction of the car.
- battery pack 1 as a power storage pack is arranged at the rear of the vehicle body.
- the battery pack 1 includes a case 20.
- Case 2 A storage battery as a power storage device is arranged.
- Case 20 in the present embodiment is made of iron.
- the case of the power storage device is not limited to this form, and can be formed of any material.
- the automobile in the present embodiment includes a support member formed to support battery pack 1.
- the holding member includes a side member (side frame) 50.
- the side member 50 constitutes a part of the body of the vehicle body.
- the side meshers 50 are arranged on both sides in the width direction of the vehicle body.
- the side member 50 is formed so as to extend in the front-rear direction of the vehicle body.
- a floor member 52 is arranged on the upper surface of the side member 50.
- the floor member 52 is formed in a plate shape.
- the floor member 52 is arranged so as to straddle between the side members 50 arranged on both sides in the width direction of the vehicle body.
- the mounts 5 5 and 5 6 are arranged on the surface of the floor member 52.
- the battery pack 1 has a front end supported by the side member 50 via a mount 55 and a floor member 52.
- the battery pack 1 has a rear end supported by the side member 50 via a mount 56 and a floor member 52.
- each member is fixed using a bolt among the screws.
- a nut may be used as the bolt fixing structure, or a screw may be formed in the screw hole on the opposite side of the bolt head.
- the battery pack 1 is fixed to the mount 55 by bolts 75 and 76 as first screws.
- the mount 55 is formed to extend in the width direction of the vehicle body.
- the mount 55 is formed so as to bridge the two side members 50.
- the mount 5 5 is fixed to the side member 50 with bolts 7 4.
- FIG. 2 shows a schematic perspective view of the battery pack in the present embodiment.
- FIG. 3 is an exploded perspective view of the battery pack in the present embodiment.
- Case 20 of battery pack 1 is formed in a box shape.
- Case 2.0 includes upper case 2 1 and lower case 2 2.
- Lower case 2 2 has legs 2 7.
- the leg 2 7 has a screw hole 31 at the outer end.
- a storage battery 25 as a power storage device is disposed on the upper surface of the lower case 22.
- Storage battery 25 in the present embodiment includes a plurality of battery cells 25 a.
- the battery cells 25a are arranged side by side so as to be stacked.
- Upper case 2 1 is a storage battery
- the upper case 2 1 has a screw hole 3 2
- the lower case 2 2 has screw holes 3 4 and 3 5 at the front end.
- the screw hole 3.2 and the screw hole 3 4 are arranged at corresponding positions.
- the screw hole 3 3 and the screw hole 3 5 ′ are arranged at corresponding positions.
- the screw hole 3 2 and the screw hole 3 4 form one first screw insertion hole of the battery pack 1.
- One first screw hole is formed at both ends in the width direction.
- the screw hole 3 3 and the screw hole 3 5 form another first screw through hole of the battery pack 1.
- the other first screw through hole is formed in the substantially central portion in the width direction.
- the bolts 7 5 By arranging the bolts 7 5 in the screw holes 3 2 and 3 4, the upper case 2 1 and the lower case 2 2 are fixed, and the battery pack 1 is fixed to the mount 5 5. Further, by arranging the bolts 7 6 in the screw holes 3 3 and 3 5, the upper case 21 and the lower case 22 are fixed, and the battery pack 1 is fixed to the mount 55.
- Upper case 2 1 has screw holes 3 6 on the end of the rear side.
- the lower case 22 has a screw hole 37 formed at the rear end portion so as to correspond to the screw hole 36.
- the upper case 21 and the lower case 22 are fixed to each other by arranging the bolt 73 as the third screw in the screw hole 36 and the screw hole 37.
- Bolt 7 3 does not fix battery pack 1 and side member 50.
- FIG. 4 shows a second schematic cross-sectional view of the on-vehicle structure of the battery pack in the present embodiment.
- FIG. 4 is a schematic cross-sectional view when the vehicle body is cut along a plane extending in the vertical direction.
- rear A partition panel 63 is arranged on the rear side of the seat 62.
- the residence panel and the trunk room 6 4 are separated by the party panel 6 3.
- Battery pack 1. in the present embodiment is arranged in trunk room 64.
- the battery pack 1 is arranged on the upper surfaces of the mounts 5 5 and 5 6.
- the battery pack 1 is disposed on the rear side of the rear seat 62.
- the side member 50 has a kick-up portion 50 a formed so as to swell upward.
- the battery pack 1 is disposed in the kick-up portion 50a.
- the battery pack 1 is supported so as to be substantially horizontal when viewed from the side.
- the automobile in the present embodiment includes a conductor 2 6 that is electrically connected to the battery pack 1.
- the conductor 26 has a length that causes bending even when the battery pack 1 is released from the side member 50.
- FIG. 5 shows a schematic exploded perspective view of the support member in the present embodiment.
- the support member in the present embodiment includes a side member 50, a cross member 51, and a floor member 52.
- the cross member 51 is formed so as to fix the side members 50 to each other.
- the floor member 52 is formed in a plate shape.
- the floor member 52 is disposed on the upper surfaces of the side member 50 and the cross member 51.
- the support member in the present embodiment includes mounts 5 5 and 5 6.
- the mounts 5 5 and 5 6 are fixed to the upper surface of the floor member 52.
- the mount 5 5 has a screw insertion hole 5 5. a formed so as to fix the screw.
- the mount 56 has a screw through hole 56 a formed so as to fix the screw.
- the side member 50 is fixed to the cross member 51 by welding.
- the floor member 52 is fixed to the side member 50 by welding.
- the mounts 5 5 and 5 6 are fixed to the floor member 52 by welding.
- FIG. 6 shows an enlarged schematic plan view of the leg portion of the battery pack in the present embodiment.
- the screw hole 3 1 has an opening 3 1 a and a moving part 3 1 b.
- the opening 3 1 a has a circular planar shape.
- the opening 3 1 a is formed to have a diameter larger than the axis of the bolt 71.
- the opening 3 la is formed to have a smaller diameter than the head of Port 71 (for example, a hexagonal column-shaped portion).
- the moving part 3 1 b is formed so as to extend toward the rear side of the vehicle body.
- the moving part 3 1 b is formed in a straight line.
- the moving part 3 1 b is formed so that the width of the shaft of the bolt 71 is small.
- FIG. 7 shows a first enlarged schematic plan view of the front portion of the battery pack according to the present embodiment.
- the screw hole 3 2 of the upper case 21 has an opening 3 2 a, a communication part 3 2 b, and an opening 3 2 c.
- the screw hole 3 2 has a longitudinal direction parallel to the longitudinal direction of the vehicle body.
- the screw hole 3 2 is formed so as to extend in the front-rear direction of the vehicle body.
- the opening 3 2 c is arranged on the opposite side to the direction in which the battery pack 1 moves when an impact is applied to the opening 3 2 a.
- the opening 3 2 c is disposed behind the opening 3 2 a.
- the screw hole 3 2 has a closed shape.
- the screw holes 32 are formed so that none of them communicates with the outside of the battery pack.
- the screw holes 3 4 in the lower case are formed in the same shape as the screw holes 3 2 (see Fig. 3).
- the opening 3 2 a is formed to have a larger diameter than the axis of the bolt 75.
- the communication part 3 2 b is formed so that the width is smaller than the diameter of the shaft of the bolt 75.
- FIG. 8 shows a second enlarged schematic plan view of the front portion of the battery pack according to the present embodiment.
- the opening 3 2 c of the screw hole 3 2 is formed to have a larger diameter than the head of the port 75.
- the opening 3 2 c is formed to allow the bolt 75 to pass through.
- FIG. 9 shows a third enlarged schematic plan view of the front portion of the battery pack according to the present embodiment.
- the screw hole 3 3 of the upper case 21 of the battery pack has an opening 3 3 a and a moving part 3 3 b.
- the screw hole 33 has a longitudinal direction parallel to the longitudinal direction of the vehicle body.
- the opening 3 3 a is formed to have a larger diameter than the axis of the bolt 76.
- the opening 3 3 a is formed to have a smaller diameter than the head of the bolt 76.
- FIG. 10 shows a fourth enlarged schematic plan view of the front portion of the battery pack according to the present embodiment.
- the moving part 3 3 b is formed so that the diameter of the shaft of the bolt 76 is also reduced.
- the moving part 3 3 b is formed to extend in the front-rear direction of the house.
- the screw holes 3 3 have a closed shape.
- the screw holes 33 are formed so that no part communicates with the outside of the battery pack.
- the screw holes 35 in the lower case are formed in almost the same shape as the screw holes 33 (see Fig. 3).
- upper case 21 in the present embodiment has thin portion 2 1 a.
- the thin-walled portion 21a is formed to be thinner than the portion around the thin-walled portion 21a.
- the thin portion 21a is formed so as to surround the end of the moving portion 33b of the screw hole 33.
- the thin-walled portion 21a in the present embodiment is formed to have a larger diameter than the head of the bolt 76 when the shaft of the port 76 is disposed at the end of the moving portion 33b. Les. That is, the thin-walled portion 2 la is formed to be larger than the head of the bolt 76 when viewed in plan. The thin-walled portion 2 la is formed so as to be broken by the head of the bolt due to an impact applied to the battery pack.
- lower case 2 2 has a thin portion 2 2 a around screw hole 35.
- the thin part 2 2 a is formed to correspond to the shape of the thin part 2 1 a of the upper case 21.
- the thin-walled portion 2 2 a has substantially the same shape as the thin-walled portion 2 1 a of the upper case 21.
- an impact from a high external position is applied to battery pack 1 as indicated by arrow 85.
- a large lorry collides with the vehicle in the present embodiment from the rear side.
- Large trucks may have bumpers placed higher than the top surface of floor member 52. In such a case, an impact is directly applied to the battery pack 1.
- leg portion 2 7 moves toward the front side of the vehicle body indicated by arrow 99.
- the moving part 3 1 b is pushed and expanded by the shaft of the bolt 7 1.
- Bolt 7 1 comes out of screw hole 3 1. That is, the fixing with the bolt 71 is released.
- battery pack 1 moves in the direction indicated by arrow 99.
- the communicating portion 3 2 b of the screw hole 3 2 is expanded by the shaft of the bolt 7 5.
- the bolt 75 moves to the opening 3 2 c.
- the bolt 75 passes through the opening 3 2 c.
- FIG. 1 FIG. 2 and FIG. 9, in the screw hole 33 on the front side of the battery pack 1, the battery pack 1 moves in the direction indicated by the arrow 99.
- the moving part 3 3 b of the screw hole 3 3 is expanded by the shaft of the bolt 7 6.
- the bolt 7 6 moves to almost the end of the moving part 3 3 b.
- the bolt 76 moves to the inside of the region where the thin wall portion 21a is formed.
- FIG. 11 shows a schematic cross-sectional view of the battery pack when an impact is applied from a high external location.
- FIG. 11 is a schematic cross-sectional view corresponding to FIG. Battery pack 1 moves in a substantially horizontal direction as indicated by arrow 89 and then moves in a substantially vertical direction in the direction indicated by arrow 90.
- the bolt 7 1 is separated from the leg 2 7.
- the bolt 7 5 comes out of the opening 3 2 c of the screw hole 3 2.
- the bolt 7 6 comes out of the case 20 while destroying the thin portion 2.1a formed in the upper case 21 and the thin portion 22a formed in the lower case 22.
- upper case 2 1 and lower case 2 2 remain fixed to each other by bolts 7 3.
- the energy of impact is absorbed, and damage to the battery pack 1 can be suppressed.
- battery pack 1 is a trunk. The battery pack 1 can be prevented from entering the living room because it is located in the room 1.
- Conductive wire 26 in the present embodiment has a sufficient length so that battery pack 1 bends even when detached from mounts 55, 56. With this configuration, it is possible to prevent the conductor 26 from being disconnected when seeding from a high external position is applied.
- the battery pack is formed so as to be detached from the support member when an impact from a high external position is applied to the battery pack. For this reason, it can suppress that a battery pack will be destroyed in the state in which the battery pack was being fixed to the support member. With the battery pack fixed to the support member, the battery back can be prevented from being broken or crushed into pieces. Further, when the battery pack is detached from the support member, it is possible to absorb a part of the impact energy to the battery pack and to suppress the damage of the battery pack.
- the battery pack when the impact from a high external position applied to the battery pack is small, the battery pack is fixed to the support member so as not to move.
- the battery pack is fixed so that it does not come off in the event of an impact that causes the side member to deform due to a small car crashing.
- the battery pack is fixed so that it does not come off.
- Bolts 7 5, 7 6 and 7 1 determine the tightening torque against the magnitude of impact from a predetermined external position on the battery pack. Also, the width of the moving part 3 1 b of the screw hole 3 1 formed in the leg 2 7, the width of the communication part 3 2 b of the screw hole 3 2 formed in the front part of the case, and the front part of the case The width of the moving part 3 3 b of the screw hole 3 3 formed in is set in accordance with the magnitude of impact from a high external position where the battery pack 1 should be moved.
- the moving parts 3 1 b and 3 3 b and the communicating part 3 2 b may be formed such that the width of each of the moving parts 3 1 b and 3 3 b and the shaft diameter of the bolt is increased.
- battery pack 1 has screw holes 3 2 and 3 4 formed in case 20 as one first screw insertion hole.
- Screw holes 3 2 and 3 4 are formed in the first opening formed on the front side and on the rear side.
- a communication portion formed so as to communicate the first opening and the second opening.
- the battery pack according to the present embodiment has screw holes 3 3 and 3 5 formed as other first screw insertion holes, and the thin portions 2 1 a and 2 2 a around the screw holes 3 3 and 3 5. Is formed. With any one of these configurations, it is possible to provide a fixing mechanism that allows the battery pack to be detached from the side member when seeding from a high external position is applied.
- through holes are formed, the present invention is not limited to this configuration, and either one of the configurations may be adopted.
- the first screw through hole is not limited to these forms, and may be formed so that the fixing by the first screw is released after the battery pack is moved.
- the first 'screw insertion hole may include an opening having a circular planar shape, and a thin portion may be formed around the opening.
- FIG. 12 shows a schematic plan view of the front part of another battery pack according to the present embodiment.
- This battery pack has a thin portion around the first screw hole.
- the battery pack includes an upper case 23.
- the upper case 23 includes a screw hole 30 as a first screw through hole.
- the screw hole 30 has a circular planar shape.
- the upper case 2 3 includes a thin portion 2 3 a.
- the thin-walled portion 23a has a transition region extending in the front-rear direction of the vehicle for the transition of the bonus 76 as the first screw and a fracture region for removal from the bolt 76 force S battery case.
- the spoiled area has a circular planar shape.
- the width of the transition region is formed so that the shaft diameter of the bolt 76 is smaller.
- the destruction area is formed to be larger than the head of the bolt 76.
- the battery pack when an impact from a high external position is applied to the battery pack, the battery pack moves to the front side of the vehicle and the transition region of the thin wall portion 2 3 a is bolt 7 6 Torn. Thereafter, the destruction region of the thin-walled portion 2 3 a is destroyed by the bolts 7 6, whereby the fixing of the battery pack by the bolts 7 6 is released.
- a part of the rear leg portion of the electricity storage pack communicates with the outside; a so-called open screw hole is formed, but the present invention is not limited to this form. It is possible to adopt an arbitrary configuration in which the fixation is released when an impact from a high external position is applied.
- the legs of the electricity storage pack may be formed so that the legs themselves are broken when a force greater than a predetermined impact is applied.
- the first screw through hole in the present embodiment is formed on the front side of the battery pack, but is not limited to this form and can be formed in any direction.
- the first screw hole may be formed on the side of the electricity storage pack. It is preferable that the direction in which the screw hole such as the first screw through hole extends is substantially parallel to the direction in which the assumed impact is applied.
- FIG. 14 A and FIG. 14 B an in-vehicle structure of the electricity storage pack according to Embodiment 2 of the present invention will be described.
- the in-vehicle structure of the electricity storage pack in the present embodiment is different from that in Embodiment 1 in the structure of the portion fixed by screws at the front end of the electricity storage pack.
- FIG. 13 shows a schematic perspective view of the front portion of the battery pack according to the present embodiment.
- Arrow 9 9 indicates the front side of the car body.
- the battery pack in the present embodiment includes case 4 5.
- the case 45 has an upper case 46 and a lower case 47.
- Case 45 has a recess 45a at the front end.
- the recess 45a is formed in a portion where each bolt is disposed.
- a step portion 45 b is formed at the bottom of the recess 45 a.
- the step portion 45 b is formed so that the cross-sectional shape is a stepped shape.
- the stepped portion 45 b is formed so that the rear side becomes higher.
- a screw hole 48 as a first screw insertion hole is formed on the bottom surface of the recess 45a.
- the screw holes 48 are formed so as to have a longitudinal direction in the longitudinal direction of the vehicle body.
- the screw holes 48 are formed so as to extend in the direction of the assumed impact force.
- FIG. 14A shows a first enlarged schematic plan view of the front portion of the battery pack according to the present embodiment.
- the screw hole 48 includes an opening 48 a as a first opening formed on the front side and an opening 48 c as a second opening formed on the rear side.
- Screw hole 4 8 is an opening The portion 4 8 a and the opening portion 4 8 c have a communication portion 4 8 b formed so as to communicate with each other.
- the opening 48c is formed in the step 45b.
- the opening 48c is formed so as to straddle the step 45b.
- At least a part of the opening 78c is formed in a portion higher than the opening 48a.
- the opening 48 a is formed so that the shaft of the bolt 72 can pass therethrough.
- the opening 48a is formed so that the head of the bolt 72 is not passed through.
- FIG. 14B shows a second enlarged schematic plan view of the front portion of the battery pack according to the present embodiment.
- the opening 48c is formed so that the head of the bolt 72 can pass through.
- washers 79 are used for fixing.
- the width of the opening 48 c is formed so as to be larger than the diameter of the washer 79. That is, the opening 48c is formed so that the washer 79 is inserted.
- the battery pack when an impact from a high external position is applied to the battery pack from the rear side, the battery pack is oriented in the direction indicated by arrow 99. Move. The battery pack moves almost horizontally.
- the bot 7 2 and the washer 7 9 are arranged inside the opening 48c.
- Bolt 7 2 and washer 7 9 pass through opening 4 8 c.
- a part of the bolt 7 2 and the washer 7 9 are arranged on the back side of the case 45 and are separated from the case 45.
- the bolt can be more reliably released when the battery pack moves.
- the step portion in the present embodiment is formed to have a staircase shape, but is not limited to this form, and at least a part of the second opening portion is disposed at a position higher than the first opening portion. It doesn't matter.
- the stepped portion may be formed in a mountain shape so as not to have a corner, and an opening through which the screw heads communicate with each other may be formed at the top of the mountain shape.
- the in-vehicle structure of the electricity storage pack in the present embodiment is The structure of the front part of the battery pack is different from that of the first embodiment.
- FIG. 15 shows a schematic cross-sectional view of the battery pack portion in the present embodiment.
- screw holes 32 are formed on both sides in the width direction.
- the front end of the battery pack 1 is fixed to the mount 55 by arranging the bolts 75 in the screw holes 32.
- Battery pack 1 in the present embodiment has bolt 77 as a third screw at the front end.
- the Bonoleto 7 7 is formed to fix the upper case 21 and the lower case 22 to each other.
- the bolt 7 7 is formed so as not to fix the battery pack 1 and the mount 5 5.
- FIG. 16 shows a schematic perspective view of the battery pack according to the present embodiment.
- Fig. 16 shows the battery pack when it is detached from the side member due to an impact.
- Case 20 in the present embodiment is formed such that a portion where bolt 77 is disposed protrudes upward.
- Upper case 2 ! Is a protrusion formed to protrude upward at the front end.
- the lower case 22 has a protruding portion 2 2 b formed to protrude upward at the front end portion.
- the projecting portion 2 1 b and the projecting portion 2 2 b are arranged at positions corresponding to each other.
- the protruding portion 2 2 b is formed so that a nut for fixing the bolt 7 7 can be disposed inside.
- FIG. 17 shows a schematic exploded perspective view of the battery pack according to the present embodiment.
- a screw hole 38 having a circular planar shape is formed in the protruding portion 2 1 b of the upper case 21.
- a screw hole 39 having a circular planar shape is formed in the protrusion 2 2 b of the lower case 2 2.
- Bonoreto 7 7 is disposed in the screw hole 3 8 and screw holes 3 9, the upper case 2 1 and the lower case 2 £ and are fixed to each other.
- the upper case 21 and the lower case 2 2 are fixed to each other by the bolt 73, as in the first embodiment. Even when the battery pack 1 is fixed to the side member, the front end and the rear end are fixed to the bolts 7 3 and 7 7. Therefore, the upper case 21 and the lower case 2 2 can be kept fixed to each other, more reliably preventing damage to the battery pack Can.
- the fixing means is not limited to this form, and any means may be used as long as the case is fixed even if the storage pack is detached from the support member.
- the upper case and the lower case may be fixed on both sides of the electricity storage case.
- the on-vehicle structure of the electricity storage pack according to the fourth embodiment of the present invention will be described.
- the impact reducing means for releasing the electricity storage pack is formed on the support member.
- FIG. 18 shows a schematic cross-sectional view of the battery pack portion in the present embodiment.
- Battery pack 2 as a power storage pack in the present embodiment includes case 40.
- the case 40 has an upper case 4 1 and a lower case 4 2.
- the lower case 4 2 has legs 2 8.
- Leg portion 28 has the same configuration as the leg portion in the first embodiment.
- the support member in the present embodiment includes a mount 57.
- the mount 5 7 is disposed at the front portion of the battery pack 2.
- the battery pack 2 has its front end fixed to the mount 5 7 with bolts 78 as second screws.
- the upper case 4 1 and the lower case 4 2 are fixed to the mount 5 7 by Bonoleto 7 8.
- the upper case 4 1 and the lower case 4 2 are fixed to each other by bolts 7 3 at the rear end.
- FIG. 19 shows a schematic exploded perspective view of the battery pack according to the present embodiment.
- a screw hole 4 1 a is formed at the front end of the upper case 4 1.
- Screw hole 4 ⁇ a is formed so that the planar shape is circular.
- Lower case 4 2 has front edge The part has screw holes 4 2 a.
- the screw hole 4 2 a is formed to have a circular planar shape.
- the screw hole 4 2 a is arranged at a position corresponding to the screw hole 4 1 a of the upper case 4 1.
- the upper case 4 1 has a screw hole 4 1 b at the rear end.
- the lower case 4 2 has a screw hole 4 2 b at the rear end.
- the screw hole 4 2 b is arranged at a position corresponding to the screw hole 4 1 b. ...
- FIG. 20 shows a schematic perspective view of the mount in the present embodiment.
- the mount 5 7 has a screw hole 58 as a second screw insertion hole at the front end.
- the screw hole 58 is formed so as to extend in the front-rear direction.
- the screw holes 5 8 are arranged at positions corresponding to the screw holes 4 1 a and 4 2 a of the case 40.
- the screw hole 58 has an opening 58a and a moving part 58b.
- the diameter of the opening 5 8 a is formed to be larger than the diameter of the shaft of the port 78.
- the diameter of the opening 5 8 a is formed to be smaller than the diameter of the head of the bolt 78.
- the width of the moving part 5 8 b is formed so that the diameter of the shaft of the bolt 78 is also increased.
- the end of the moving part 5 8 b is open to the outside.
- the support member in the present embodiment includes a retainer 4 3 fixed to the mount 5 7.
- the retainer 4 3 is disposed on the back side of the portion of the mount 5 7 that contacts the battery pack.
- the retainer 43 in the present embodiment is formed in a plate shape.
- FIG. 21 shows an enlarged schematic bottom view of the retainer portion when the mount according to the present embodiment is viewed from the back side.
- the retainer 43 in the present embodiment has a break assisting portion.
- the rupture assisting part is located on both sides of the insertion hole for passing the bolt shaft of the retainer 43.
- the destruction assisting portion in the present embodiment has a notch portion 4 3 a.
- the destruction assisting portion has a hole portion 4 3 b.
- the notches 4 3 a and the holes 4 3 b are arranged so as to be aligned in the front-rear direction of the vehicle body.
- the retainer 43 in the present embodiment is made of metal. With the destruction assistant The cut portion 4 3 a and the hole portion 4 3 b are formed so as to correspond to the magnitude of impact from a high external position where the battery pack should be detached from the support member.
- the retainer 4 3 has a central portion 4 3 d and a peripheral portion 4 3 c.
- the central part 4 3 d and the peripheral part 4 3 c are partitioned into a notch part 4 3 a and a hole part 4 3 b.
- a nut 4 4 for fixing the bolt 7 8 is fixed to the central portion 4 3 d.
- the nut 4 4 has a through hole 4 4 a for inserting a bolt into the central portion.
- the central portion 4 3 d has an insertion hole for passing the shaft of the bolt 78 so as to correspond to the through hole 4 4 a of the nut 4 4.
- the retainer 4 3 has a peripheral portion 4 3 c fixed to the mount 5 7.
- the retainer 4 3 is fixed to the mount 5 7 by welding.
- the nut 4 4 is fixed to the retainer 4 3 by welding.
- FIG 22 shows an enlarged schematic bottom view of the front mount when the battery pack is subjected to an impact from a high external location.
- Battery pack 1 moves in the forward direction of the vehicle body as indicated by arrow 99.
- the retainer is destroyed at the destruction catcher.
- the portion where the notch 4 3 a and the hole 4 3 b are formed is broken.
- the connection between the central portion 4 3 d and the peripheral portion 4 3 c is broken.
- the central part 4 3 d is separated from the peripheral part 4 3 c.
- the battery pack 1 and the mount 5 7 are unfixed when a part of the retainer is broken.
- the peripheral part 4 3 c of the retainer remains fixed to the mount 5 7.
- the central part 4 3 d of the retainer is detached together with the battery pack 1.
- the retainer when a large lorry collides with an automobile with a battery pack placed in the trunk room and an impact from a high external position occurs on the battery pack, the retainer is destroyed. .
- the impact applied to the battery pack is small, the retainer is not destroyed and the battery pack is fixed to the support member.
- the battery pack is formed so as not to be detached in the case of an impact that causes a small car to collide and deform the support member.
- the battery pack is fixed so that it does not come off against impacts such as when a heavy object placed in the trunk room collides with the building and collides with the battery pack. ⁇ .
- the support member has the retainer and is formed so that the retainer is destroyed when an impact from an external high position is applied.
- the battery pack can be prevented from being broken by being detached from the support member.
- the retainer in the present embodiment has a notch part 4 3 a and a hole part 4 3 b as a smashing catching part. Since at least one of the notch and hole is formed as a breakage assisting part, the part where the retainer is broken can be easily identified, and the retainer can be broken smoothly. it can. Or, the impact force to break the retainer can be easily adjusted.
- the breakage assisting portion is not limited to a notch or opening, and may be formed so as to identify the breakage position of the retainer.
- a portion with a reduced thickness may be formed instead of the notch or the opening.
- the second screw through hole in the present embodiment has a shape in which the end of the mount is notched.
- the second screw through hole is not limited to this shape, and the second screw through hole is a retainer after the retainer is broken.
- the second screw through hole may be a hole formed in a substantially central portion in the width direction of the mount and having a closed shape.
- the present invention can be advantageously applied to a power storage pack mounted on an automobile.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Aviation & Aerospace Engineering (AREA)
- Battery Mounting, Suspending (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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DE112007000474.6T DE112007000474B4 (de) | 2006-02-28 | 2007-02-26 | Aufbau zum Montieren einer Elektrizitätsspeichereinheit an einem Fahrzeug |
CN2007800071058A CN101395022B (zh) | 2006-02-28 | 2007-02-26 | 蓄电组的车载构造 |
US12/223,933 US8037960B2 (en) | 2006-02-28 | 2007-02-26 | Structure for mounting electricity storage pack on vehicle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006053225A JP4935112B2 (ja) | 2006-02-28 | 2006-02-28 | 蓄電パックの車載構造 |
JP2006-053225 | 2006-02-28 |
Publications (1)
Publication Number | Publication Date |
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WO2007100118A1 true WO2007100118A1 (ja) | 2007-09-07 |
Family
ID=38459210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2007/054120 WO2007100118A1 (ja) | 2006-02-28 | 2007-02-26 | 蓄電パックの車載構造 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8037960B2 (ja) |
JP (1) | JP4935112B2 (ja) |
CN (1) | CN101395022B (ja) |
DE (1) | DE112007000474B4 (ja) |
WO (1) | WO2007100118A1 (ja) |
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Also Published As
Publication number | Publication date |
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CN101395022A (zh) | 2009-03-25 |
DE112007000474T5 (de) | 2009-01-15 |
JP4935112B2 (ja) | 2012-05-23 |
CN101395022B (zh) | 2012-07-04 |
JP2007230329A (ja) | 2007-09-13 |
DE112007000474B4 (de) | 2018-02-15 |
US8037960B2 (en) | 2011-10-18 |
US20090226806A1 (en) | 2009-09-10 |
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