JP2013018385A - Battery replacing method of electric motor vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a battery replacing method of an electric motor vehicle for easily performing transshipping work for transshipping a battery carried by a battery carriage and a battery of the electric motor vehicle.SOLUTION: In this battery replacing method of the electric motor vehicle, a rear wheel 7 is positioned in an outside part of a main frame 10 of a vehicle body bottom part. The battery replacing method of the electric motor vehicle is characterized in that a battery chamber 4 is arranged on the front side more than the front edge 11 of the rear wheel 7, the battery 5 is formed so as to be capable of taking in and out and guiding to the lateral side of a vehicle body, and the battery carriage 18 is connected and positioned to a battery taking in and out part 17 by allowing the battery carriage 18 brought alongside the outside of the battery taking in and out part 17 to abut on an outside edge part 10a of the main frame 10 and the front part outer peripheral edge 7a of the rear wheel 7.

Description

  The present invention relates to a battery replacement method for simplifying battery replacement in an electric vehicle driven by an electric motor by a battery power source.

  2. Description of the Related Art A technique is known in which an electric vehicle is accompanied by a battery carriage to load and unload a battery carried by the battery carriage (see, for example, Patent Document 1 and Patent Document 2).

JP 2003-94955 A JP 2005-96503 A

  An industrial electric vehicle that is driven by rotating a wheel by driving a motor by a battery power source needs to be frequently loaded and unloaded on a vehicle body of a heavy load. For this reason, in the replacement work in which the battery carriage is attached as described above and the battery carried by the battery carriage is replaced with the battery of the electric vehicle, the position of the battery carriage entrance / exit relative to the entrance / exit of the battery chamber of the electric vehicle is It is difficult to match, and it is difficult to easily replace the battery.

  A front wheel 3 that can be steered by a handle 2 in front of the driver's seat 1, a motor 6 that is electrically driven by a battery 5 mounted in a battery chamber 4 below the driver's seat 1, and a rear wheel 7 that is driven by this motor 6. In the battery replacement method for an electric vehicle in which the rear wheel 7 is positioned outside the main frame 10 at the bottom of the vehicle body 8, the battery chamber 4 is disposed in front of the front edge 11 of the rear wheel 7, and the battery 5 is A battery carriage 18 that is formed so as to be able to be guided in and out of the left and right sides of the vehicle body 8 and is laterally placed outside the battery insertion / removal portion 17 is brought into contact with the outer edge portion 10a of the main frame 10 and the outer peripheral edge 7a of the front portion of the rear wheel 7. The battery replacement method for the electric vehicle is characterized in that connection positioning of the battery carriage 18 with respect to the battery insertion / removal portion 17 is performed.

  Further, a pair of left and right wheels 19 that are rotatable only in the front-rear direction are provided below the rear part of the battery mount 22, and support means 60 that can support the mounting surface 22 a of the battery mount 22 in a substantially horizontal state is provided in front of the pair. A battery exchanging method for an electric vehicle characterized by using a battery carriage 18 provided with a handle 21 that is provided and erected toward the rear upper part of the battery mounting base 22 is used.

  Furthermore, the battery replacement method for the electric vehicle is characterized in that the support means 60 is a pair of left and right caster wheels 20 having a caster angle.

  In the first aspect of the present invention, the rear wheel 7 is provided so as to protrude or protrude from the outer side of the main frame 10 at the bottom of the vehicle body 8, and the battery chamber 4 is disposed in front of the front edge 11 of the rear wheel 7. The battery 5 is formed so that it can be guided to the left and right sides of the vehicle body 8, and the battery carriage 18 that lies laterally outside the battery insertion / removal portion 17 is in contact with the outer edge 10 a of the main frame 10 and the outer periphery 7 a of the front portion of the rear wheel 7. Since the battery carriage 18 is connected and positioned with respect to the battery insertion / removal portion 17, the battery carriage 18 can be easily positioned when replacing the battery 5, and the battery 5 can be replaced easily and quickly. .

  According to the second aspect of the present invention, a pair of left and right wheels 19 that are rotatable only in the front-rear direction are provided below the rear part of the battery mount 22, and the mounting surface 22a of the battery mount 22 is set in a substantially horizontal state in front of the pair. Since the battery carriage 18 provided with the support means 60 that can be supported and formed with the handle 21 erected upward at the rear of the battery mount 22 is used, the outer edge 10a of the main frame 10 and the outer periphery of the front part of the rear wheel 7 are used. When the battery 5 is loaded from the vehicle body 8 side to the lateral battery carriage 18 side on the battery carriage 18 positioned in contact with 7a, the wheel 19 is directed in a direction perpendicular to the battery 5 loading direction, The battery carriage 18 is difficult to move in the direction in which the battery 5 is pulled out, and battery replacement can be easily performed.

  In the third aspect of the invention, since the support means 60 is a pair of left and right caster wheels 20 having a caster angle, the battery carriage 18 is manually pushed and moved while all wheels of the wheels 19 and the caster wheels 20 are in contact with the ground. It is also possible to run the vehicle with the handle 21 pressed and the caster wheel 20 floating.

The side view of an electric vehicle. The rear view. The side view of a rear wheel support part. The top view which shows a trolley | bogie connection state. The side view of a battery cart. The perspective view of a battery tray. The top view of a battery cart. The top view which shows a battery exchange state. The front view.

  An embodiment in which the present invention is used in an electric tow vehicle will be described with reference to the drawings. In the electric tow vehicle of the present invention, a main frame 10 made of a pipe material is formed at the bottom of a vehicle body 8 in a vertically long rectangular shape in plan view, and a step floor 28 and a driver's seat 1 are formed above the main frame 10. The lower battery chamber 4 and the like are arranged, and the front end portion of the main frame 10 is supported by the three front wheels, and can be steered by operating the handle 2 on the handle post 29. Further, at the rear end of the main frame 10, an electric motor 6, a transmission case 31 for mounting the rear wheel shaft 30 driven and rotated by the motor 6, and a support rod 32 for supporting the rear wheel shaft 30 and the like, By providing the spring damper 33 and the like and rotating the rear wheel 7 by driving the motor 6, the vehicle body 8 can travel forward and backward.

  A seat post 34 is vertically provided at the center of the rear end of the main frame 10, and a substantially square driver's seat 1 is attached to and supported at the upper end. A support frame 39 that surrounds the outer periphery of the motor 6, the transmission case 31, the rear wheel shaft 30, and the like is configured on the rear side of the seat post 34, and the battery chamber 4 is disposed on the front side of the seat post 34. A restraining plate 40 is provided on the upper side of the battery chamber 4 so as to restrain the movement of the battery 5 accommodated therein. The driver's seat 1 is inserted into the upper end of the seat post 34 and is supported and fixed. In order to facilitate the vehicle driver's backward turning posture of the vehicle body 8, only a substantially horizontal seating surface is formed. The backrest or the armrest is not provided or is not attached (removed).

  In the form of the vehicle body 8 as described above, the battery chamber 4 is formed on the front side of the seat post 34, and a seat cover 13 is provided to cover the lower side of the driver seat 1 and the upper side of the battery chamber 4. The outer peripheral surface of the battery chamber 4 is covered. A battery insertion / removal portion 17 for inserting / removing the battery 5 is formed on either the left or right side of the battery chamber 4, and when the battery 5 is replaced, the opening / closing tool 41 is removed and the seat cover 13 is removed. Is possible. Further, the outer periphery of the motor chamber and the rear wheel 7 where the motor 6 and the like behind the seat post 34 are located are covered with a rear cover 42.

  A seat cover 13 and a rear cover 42 formed in a trapezoidal shape in which the driver's seat 1 is disposed at the uppermost portion and the seat post 34 is formed in a trapezoidal shape with a lower outer periphery extending rearwardly. A seating surface of the horizontal driver's seat 1 is formed at the center top portion of the rear cover 42, and the driver can easily perform a driving operation while looking back at the connecting hitch 9 side from the seating posture. A hook 25 that can be connected to and released from the rear end of the vehicle body 8 by engaging a connecting hitch 9 with a connector 44 of a transport carriage 43 is operated by gripping a hand stay 26 and an operating lever 27 on the side of the driver's seat 1. Then, the coupler 44 can be connected or released by rotating through the wire 45.

  Here, a front wheel 3 that can be steered by a handle 2 in front of the driver's seat 1, a motor 6 that is electrically driven by a battery 5 mounted in the battery chamber 4 below the driver's seat 1, and a rear that is driven by this motor 6. In the battery replacement method for an electric vehicle in which the wheel 7 is provided and the rear wheel 7 is positioned outside the main frame 10 at the bottom of the vehicle body 8, the battery chamber 4 is disposed in front of the front edge 11 of the rear wheel 7, The battery 5 is formed so that it can be guided to the left and right sides of the vehicle body 8, and the battery carriage 18 that lies laterally outside the battery insertion / removal portion 17 is in contact with the outer edge 10 a of the main frame 10 and the outer periphery 7 a of the front portion of the rear wheel 7. The battery replacement method for the electric vehicle is characterized in that connection positioning of the battery carriage 18 with respect to the battery insertion / removal portion 17 is performed.

  Further, a pair of left and right wheels 19 that are rotatable only in the front-rear direction are provided below the rear part of the battery mount 22, and support means 60 that can support the mounting surface 22 a of the battery mount 22 in a substantially horizontal state is provided in front of the pair. A battery exchanging method for an electric vehicle characterized by using a battery carriage 18 provided with a handle 21 that is provided and erected toward the rear upper part of the battery mounting base 22 is used.

  Further, the battery replacement method for the electric vehicle is characterized in that the support means 60 is a pair of left and right caster wheels 20 having a caster angle.

  The battery 5 is formed long in the lateral direction, and a pair of front and rear batteries 5 are placed side by side on the upper surface of one battery tray 46. (FIG. 7 to FIG. 9) The battery tray 46 is formed by forming an anti-slip edge 47 on the entire circumference or a partial circumference of the outer periphery, and forming a handle 48 on one side end, and gripping the battery tray 46. The push-pull movement is easily performed. The guide table 12 of the vehicle body 8 receives the battery tray 46 and guides the battery chamber 4 for sliding movement in the left-right direction.

  The battery carriage 18 on which the battery 5 is placed can move the battery tray 46 placed and supported in a lateral state, and the battery tray 18 can be placed sideways. 10 has a pair of left and right wheels 19 and a caster wheel 20 located on the front side thereof, and a handle 21 is erected toward the rear upper side of the wheel 19 side. Thus, the handle 21 can be moved or steered by pushing and pulling B. The upper surface of the battery mount 22 can be made substantially horizontal by supporting the wheels 19 and the caster wheels 20 on the floor. The battery platform 22 extends over the outside of the wheel 19 or forms a projecting projection 23. When the battery carriage 18 is moved to the side of the vehicle body 8, the battery platform 22 The overhang portion 23 is made easy to approach the battery insertion / removal portion 17 of the battery chamber 4. In addition, a guide edge 49 having an appropriate height is formed along the front and rear end edges of the battery mount 22 to guide the battery tray 46 placed on the upper surface of the battery mount 22 so that it does not fall back and forth. The overhanging portion 23 is configured as a simple flat edge 24 that does not form the guide edge 49 so as to be in direct contact with the front outer peripheral edge 7a of the rear wheel 7 (FIG. 8). Further, a stopper edge 50 is formed at one end of the battery mount 22 to prevent the battery 5 from falling off.

  Further, as shown in FIG. 9, the battery tray 46 on the battery carriage 18 side with respect to the height H1 of the surface of the guide table 12 on the vehicle body 8 side to be alternately mounted by moving the battery tray 46 in the horizontal direction. The height H2 of the surface is set to be appropriately high (H1 <H2). This is because, when the heavy battery 5 is moved to the battery carriage 18 side, the surface of the battery carriage 18 on the battery carriage 18 side even when the height H1 of the surface of the guide table 12 is increased by the action of the spring damper 33. The height H2 is set to be higher than H1. Thereby, the push-in supply of the battery tray 46 carrying the heavy battery 5 to the battery chamber 4 and the drawing operation from the battery chamber 4 onto the battery mount 33 can be performed easily and easily.

DESCRIPTION OF SYMBOLS 1 Driver's seat 2 Handle 3 Front wheel 4 Battery chamber 5 Battery 6 Motor 7 Rear wheel 7a Front outer periphery 8 Car body 10 Main frame 10a Outer edge 11 Front edge 17 Battery insertion / removal part 18 Battery carriage 19 Wheel 20 Caster wheel 21 Handle 22 Battery Mounting table 22a Mounting surface 60 Support means

Claims (3)

  A front wheel (3) that can be steered by a handle (2) in front of the driver's seat (1) and a motor (6) that is electrically driven by a battery (5) mounted in the battery compartment (4) below the driver's seat (1). And a rear wheel (7) driven by the motor (6), and the rear wheel (7) is located on the outside of the main frame (10) at the bottom of the vehicle body (8). In the method, the battery chamber (4) is arranged in front of the rear wheel (7) and the front end edge (11), and the battery (5) is formed so as to be guided to the left and right sides of the vehicle body (8). A battery carriage (18) laid laterally on the outside of the loading / unloading portion (17) is brought into contact with the outer edge (10a) of the main frame (10) and the front outer periphery (7a) of the rear wheel (7). 17) Connection positioning of the battery cart (18) with respect to Battery replacement method for an electric vehicle characterized by Ukoto.   A pair of left and right wheels (19) that can be rotated only in the front-rear direction are provided below the rear part of the battery mount (22), and the front surface (22a) of the battery mount (22) is supported in a substantially horizontal state. The electric vehicle according to claim 1, characterized in that a battery carriage (18) provided with possible support means (60) and having a handle (21) erected upward toward the rear part of the battery mount (22) is used. Battery replacement method.   The battery replacement method for an electric vehicle according to claim 2, wherein the support means (60) is a pair of left and right caster wheels (20) having a caster angle.

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