# US 2013/0153315 A1 · Attach and detach device of battery for electric vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0153315 A1 - Document ID: US20130153315A1 - Status: Published application - Kind: A1 - Application number: 13/532,138 - Filed: 2012-06-25 - Published: 2013-06-20 - Earliest claimed: 2011-12-16 - Assignees: Motex Products Co., Ltd.; Industry-University Cooperation Foundation Korea Aerospace University; Kookmin Universty Industry Academy Cooperation Foundation - Inventors: Chi-Man YU; Joo-Sub SIM; Yong-Geu PARK; Woong-Sung JANG; Yun-ha KIM; Jun-Seok PARK; Woong-Chul CHOI; Jay-II JEONG; Won-Kyu KIM - Web page: https://patentgrep.com/patent/US20130153315A1 ## CPC - H01M 50/256: Carrying devices, e.g. belts - B60K 1/04: of the electric storage means for propulsion - B60L 50/64: Constructional details of batteries specially adapted for electric vehicles - B60L 53/80: Exchanging energy storage elements, e.g. removable batteries - 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 2001/0466: {from above} - B60Y 2200/143: Busses - H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane - Y02E 60/10: Energy storage using batteries - Y02T 90/12: Electric charging stations - 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 - B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract Disclosed is an electric vehicle battery attaching/detaching device including a battery having incision recesses formed on lateral portions, respectively, each incision recess having a lower engaging ledge; a battery mounting unit adapted to detachably mount the battery, the battery mounting unit having grasping holders formed on a bottom portion and adapted to engage with or disengage from the lower engaging ledges of the battery incision recesses; and a driving means adapted to rotate the grasping holders in response to an electric signal so that the grasping holders engage with or disengage from the lower engaging ledges of the battery incision recesses. ## Claims ### Claim 1 An electric vehicle battery attaching/detaching device comprising: a battery mounting unit formed on an electric vehicle and adapted to detachably mount a battery; a loader having a plurality of battery stands, each battery stand being adapted to detachably mount a fully-charged battery to be exchanged with the battery mounted on the battery mounting unit; and a battery attaching/detaching unit adapted to move along X-axis, Y-axis, and Z-axis between the battery mounting unit and the battery stand by means of a movement device, detach a battery mounted on the battery mounting unit or the battery stand, and exchange/mount the battery on the battery stand or the battery mounting unit. ### Claim 2 (depends on 1) The electric vehicle battery attaching/detaching device as claimed in claim 1, wherein the battery has coupling holes formed near corners, upper surface incisions formed on both lateral portions, respectively, each upper surface incision having an engaging ledge formed at a predetermined height from a bottom portion, and lower surface incisions formed on front and rear portions, respectively, each lower surface incision having an engaging ledge formed at a predetermined height from a top portion. ### Claim 3 (depends on 2) The electric vehicle battery attaching/detaching device as claimed in claim 2, wherein the battery mounting unit comprises: a bottom portion of a predetermined area so that the battery is seated and supported; coupling protrusions extending a predetermined length in a direction perpendicular to the bottom portion, the coupling protrusions being positioned on an identical vertical line with the coupling holes of the battery; and grasping holders adapted to engage with or disengage from the engaging ledges of the upper surface incisions of the battery by means of elastic force. ### Claim 4 (depends on 3) The electric vehicle battery attaching/detaching device as claimed in claim 3, wherein the grasping holders are adapted to make hinge rotation in a forward/backward direction by means of elastic members, the grasping holders have stepped portions formed to horizontally engage with the engaging ledges formed on the upper surface incisions of the battery, respectively, and a slanted surface portion is formed to be slanted upwards from an inner end surface of each stepped portion in an outward direction. ### Claim 5 (depends on 1) The electric vehicle battery attaching/detaching device as claimed in claim 1, wherein the movement device comprises: a pair of fixed guide rails installed horizontally on the loader; a variable guide rail installed on the fixed guide rails in a perpendicular direction and adapted to move horizontally along X-axis or Y-axis; a movable rail adapted to move horizontally along Y-axis or X-axis with regard to the variable guide rail, as well as move vertically along Z-axis, the battery attaching/detaching unit being installed on a lower end of the movable rail. ### Claim 6 (depends on 3) The electric vehicle battery attaching/detaching device as claimed in claim 3, wherein the battery attaching/detaching unit is installed on the movement device to be able to move along X-axis, Y-axis, and Z-axis, and the battery attaching/detaching unit comprises: a main unit shaped and sized in conformity with the battery; grasping units formed on front and rear surfaces of the main unit, respectively, and adapted to make hinge rotation vertically and horizontally in response to electric signals; and disengaging units formed on left and right surfaces of the main unit, respectively, and adapted to make hinge rotation vertically and horizontally in response to electric signals. ### Claim 7 (depends on 6) The electric vehicle battery attaching/detaching device as claimed in claim 6, wherein the grasping units are positioned to vertically correspond to the lower surface incisions of the battery and have a corresponding number, each grasping unit has a vertical unit adapted to make hinge rotation vertically or horizontally in response to an electric signal and a horizontal unit extending from an end of the vertical unit in a perpendicular direction, and the horizontal units are adapted to horizontally engage with the engaging ledges formed on the lower surface incisions of the battery, when the grasping units are folded, and grasp the battery. ### Claim 8 (depends on 6) The electric vehicle battery attaching/detaching device as claimed in claim 6, wherein the disengaging units are positioned to vertically correspond to the upper surface incisions of the battery and the grasping holders of the battery mounting unit and have a corresponding number. ### Claim 9 (depends on 2) The electric vehicle battery attaching/detaching device as claimed in claim 2, wherein the battery stand comprises: a bottom portion of a predetermined area so that the battery is seated and supported; and coupling protrusions extending a predetermined length in a direction perpendicular to the bottom portion, the coupling protrusions being positioned on an identical vertical line with the coupling holes of the battery. ### Claim 10 (depends on 9) The electric vehicle battery attaching/detaching device as claimed in claim 9, wherein grasping holders are installed on the bottom portion of the battery stand and adapted to engage with or disengage from the engaging ledges of the upper surface incisions of the battery by means of elastic force. ### Claim 11 An electric vehicle battery attaching/detaching device comprising: a battery mounting unit formed on an electric vehicle and adapted to detachably mount a battery; a loader having a plurality of battery stands, each battery stand being adapted to detachably mount a fully-charged battery to be exchanged with the battery mounted on the battery mounting unit; and a battery attaching/detaching unit adapted to move along X-axis, Y-axis, and Z-axis between the battery mounting unit and the battery stand by means of a movement device, detach a battery mounted on the battery mounting unit or the battery stand, and exchange/mount the battery on the battery stand or the battery mounting unit so that, even if the battery attaching/detaching unit is displaced vertically or horizontally within a predetermined tolerance range from an identical vertical line shared by the battery mounting unit or the battery stand, the battery is lowered and seated on the battery mounting unit or the battery stand. ### Claim 12 (depends on 11) The electric vehicle battery attaching/detaching device as claimed in claim 11, wherein the battery has cone-type recesses formed near its bottom corners. ### Claim 13 (depends on 12) The electric vehicle battery attaching/detaching device as claimed in claim 12, wherein the cone-type recesses have a cone shape so that the interval of entering ends is large but decreases inwards. ### Claim 14 (depends on 11) The electric vehicle battery attaching/detaching device as claimed in claim 11, wherein the battery has incision recesses formed on both lateral portions, respectively, each incision recess having upper and lower engaging ledges formed at predetermined heights from bottom and top portions, respectively. ### Claim 15 (depends on 13) The electric vehicle battery attaching/detaching device as claimed in claim 13, wherein the battery mounting unit has a bottom portion of a predetermined area so that the battery is seated and supported and cone-type protrusions formed on the bottom portion and positioned to correspond to the cone-type recesses, the cone-type protrusions extending vertically a predetermined length. ### Claim 16 (depends on 14) The electric vehicle battery attaching/detaching device as claimed in claim 14, wherein the battery mounting unit has grasping holders adapted to engage with or disengage from the lower engaging ledges of the battery incision recesses. ### Claim 17 (depends on 16) The electric vehicle battery attaching/detaching device as claimed in claim 16, wherein the grasping holders are adapted to rotate a predetermined angle about center shafts in response to electric signals to engage with or disengage from the lower engaging ledges and are provided with stepped portions to horizontally engage with the lower engaging ledges. ### Claim 18 (depends on 11) The electric vehicle battery attaching/detaching device as claimed in claim 11, wherein the battery has taper surfaces formed on lower portions of respective lateral surfaces up to a predetermined height, the taper surfaces defining slanted surfaces of a predetermined angle so that a sectional area decreases downwards. ### Claim 19 (depends on 18) The electric vehicle battery attaching/detaching device as claimed in claim 18, wherein the taper surfaces have an inclination angle of 10-20°. ### Claim 20 (depends on 18) The electric vehicle battery attaching/detaching device as claimed in claim 18, wherein anti-wear cover plates are positioned to straddle the taper surfaces of front, rear, left, and right surfaces of the battery and front, rear, left, and right surfaces near upper portions of the taper surfaces by a predetermined interval. ### Claim 21 (depends on 20) The electric vehicle battery attaching/detaching device as claimed in claim 20, wherein guide pieces are installed near respective front, rear, left, and right corners of the bottom portion of the battery mounting unit and adapted to contact the taper surfaces of the battery, when the battery descends to the battery mounting unit, and guide the battery so that the battery slides frictionally to be seated in an accurate position. ### Claim 22 (depends on 21) The electric vehicle battery attaching/detaching device as claimed in claim 21, wherein each guide piece has. a slanted surface formed on an inner surface at an angle of 10-20°. ### Claim 23 An electric vehicle battery attaching/detaching device comprising: a battery having incision recesses formed on lateral portions, respectively, each incision recess having a lower engaging ledge; a battery mounting unit adapted to detachably mount the battery, the battery mounting unit having grasping holders formed on a bottom portion and adapted to engage with or disengage from the lower engaging ledges of the battery incision recesses; and a driving means adapted to rotate the grasping holders in response to an electric signal so that the grasping holders engage with or disengage from the lower engaging ledges of the battery incision recesses. ### Claim 24 (depends on 23) The electric vehicle battery attaching/detaching device as claimed in claim 23, wherein the driving means comprises: a driving motor installed on one side of a rear surface of the battery mounting unit; a driving shaft installed along an identical axis with a shaft of the driving motor; driven shafts installed in a direction perpendicular to the driving shaft and adapted to rotate so that rotation of the driven shafts is interlinked with rotation of the driving shaft; worm gears adapted to rotate so that rotation of the worm gears is interlinked with rotation of the driven shafts; and worm wheels adapted to mesh with the worm gears and installed on lower center shafts of the grasping holders, respectively. ### Claim 25 (depends on 24) The electric vehicle battery attaching/detaching device as claimed in claim 24, wherein the driven shafts and the worm wheels are connected and installed to be interlinked by reduction gears of at least one stage. ### Claim 26 (depends on 24) The electric vehicle battery attaching/detaching device as claimed in claim 24, wherein bevel gears are installed on the driving shaft, bevel gears are installed on first ends of the driven shafts, and the bevel gears mesh with each other in a perpendicular direction so that the driven shafts are interlinked and rotated in a direction perpendicular to the driving shaft. ### Claim 27 (depends on 23) The electric vehicle battery attaching/detaching device as claimed in claim 23, wherein the grasping holders have stepped portions formed to horizontally engage with the lower engaging ledges of the battery incision recesses.