KR101402678B1 - Auto-exchanging system of electric vehicle battery having adjustable winding-length function for rope - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic retractable battery automatic exchange system for an electric vehicle having a hoisting distance adjustment function, and more particularly, And more particularly, to a pull-type battery automatic exchange system for an electric vehicle having a hoist distance control function capable of preventing an accident from occurring.
A traction type battery automatic exchange system for an electric vehicle having a hoisting distance adjusting function according to the present invention includes a main transfer rail device installed at a position higher than a car garage of an electric vehicle and an exchange device installed in the main transfer rail device for exchanging a battery M), characterized in that the exchange device comprises: a transport frame which is moved on the main transport rail device; A traction device mounted on and moved to the transport frame; A lifting rope wound and unwound by the towing device; And a clamping device connected to the lifting rope for lifting and lowering and clamping, unclamping and moving the battery, wherein the lifting device comprises: a pulling device body movably installed on the transporting frame; A traction drive motor provided on the main body of the traction device; A traction speed reducer connected to decelerate the rotational force of the traction drive motor; And a hoisting drum connected to the output portion of the traction reducer and rotated to wind up the hoisting rope, wherein the hoisting and lowering ropes are detected and applied by detecting the rotation speed and the rotation angle of the hoisting drum, And drum rotation detecting means for controlling the driving of the traction drive motor according to the detected traverse distance.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an auto-switching system for an electric vehicle,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic retractable battery automatic exchange system for an electric vehicle having a hoisting distance adjustment function, and more particularly, And more particularly, to a pull-type battery automatic exchange system for an electric vehicle having a hoist distance control function capable of preventing an accident from occurring.

Generally, fossil fuels such as petroleum such as gasoline, light oil, natural gas such as LPG and LNG are mainly used as fuels, but fossil fuels are depleted with time as resources are limited, and their prices are continuously rising It is in the present situation.

In addition, fossil fuels not only exhaust a variety of exhaust gases that pollute the atmospheric environment during their use, but also discharge a large amount of carbon dioxide, which is a major cause of global warming, Electric vehicles were developed.

Electric vehicles include a battery powered electric vehicle, a hybrid electric vehicle using a motor and an engine together, and a fuel cell electric vehicle. In addition, in order to expand the activation and diffusion of electric vehicles, it is essential to construct a charging infrastructure that can be easily charged anytime and anywhere.

However, unlike automobiles that use petroleum (gasoline, light oil, etc.) or electric vehicles, electric vehicles are charged by the plug-in method, unlike automobiles that use natural gas. Consumers are very inconvenient because of long waiting time. There is no economical efficiency due to excessive waiting time.

In order to solve the above problems, as disclosed in Korean Patent Laid-Open Publication No. 10-2011-0078289, the battery of the electric vehicle is charged in advance without directly charging the battery, (Hereinafter, referred to as " battery replacement system ").

Such a battery replacement method is advantageous in that, when a consumer requiring a charge visits the charging station, the used battery is replaced with a fully charged battery in advance, so that the battery can be conveniently used without additional charging time.

However, when the consumer visits the charging station to replace the battery, the battery in the electric vehicle is disassembled and removed to find a battery suitable for the type of electric vehicle or the type of the battery, There is still a problem that it takes a lot of time.

Accordingly, there is a need to develop an automatic battery exchange system capable of quickly and accurately performing a battery replacement operation in order to conveniently use an electric vehicle.

Such a battery automatic exchange system can be implemented to move the battery and perform loading and unloading operations using the X-axis, Y-axis, and Z-axis driving axes, as in the case of a three-axis robot system based on robot technology. It is practically difficult to implement the system as a replacement system of a facility in which a battery of a high weight such as an electric car is mounted. However, there is a drawback that the application of such a system has inherent risks such as falling of the battery.

Particularly, electric automobile batteries such as electric buses have a large capacity and load and volume, which makes it difficult to transfer and replace, and causes serious safety accidents in case of a fall. Therefore, stability, safety and durability are verified The development of a new system is urgently required.

Accordingly, it is necessary to apply an automatic battery exchange system using a traction system using a lifting rope that has been verified to have stability as in the case of an elevator lifting system, and which has become popular.

The battery automatic exchange system using the pulling method using the lifting rope is a system in which the lifting rope is lifted and raised by a pulling device provided at the upper part while the battery is held in the clamping device, The safety can be improved and an efficient battery exchange system can be realized.

However, since the automatic battery exchange system can not control the descent distance of the lifting rope by the pulling method using the lifting rope, it is possible to safely perform the operation of separating the discharge battery mounted on the battery mounting portion of the electric vehicle or mounting the rechargeable battery There is no limit. More specifically, it is necessary to move the descent distance of the lifting rope by a descending distance corresponding to the battery installation position of the electric vehicle. Conventionally, however, a method of controlling the number of revolutions of the traction drive motor The descending distance of the lifting rope is adjusted. The driving control of the traction drive motor makes it impossible to accurately adjust the lift distance, and it is very difficult to perform the adjustment operation and it takes a long time.

In addition, since the lifting distance of the lifting rope can not be precisely adjusted, if the clamping device holding the battery due to the rising distance error collides with the lifting device, it will not only damage the clamping device and the towing device, There is a disadvantage which is caused.

When the batteries are to be replaced with electric vehicles of different types, it is necessary to measure the falling distance of the lifting rope or to manually adjust the falling distance each time. Therefore, it takes a lot of time for the battery, Or the collision between the clamping device and the electric differential vehicle occurs, thus making it impossible to efficiently operate the electric vehicle charging station.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances and has an object of providing a hoist distance adjusting function capable of accurately and safely performing a replacement operation of a battery by detecting and adjusting a hoist distance of a hoist rope, The present invention provides a battery-powered automatic exchange system for an electric vehicle equipped with an electric motor.

In order to achieve the above object, an automatic traction type battery exchange system for an electric vehicle having a hoisting distance adjusting function according to the present invention comprises a main conveyance rail device installed at a position higher than a car garage of an electric vehicle, And an exchange device (M) for exchanging a battery, characterized in that the exchange device comprises: a transport frame which is moved on the main transport rail device; A traction device mounted on and moved to the transport frame; A lifting rope wound and unwound by the towing device; And a clamping device connected to the lifting rope for lifting and lowering and clamping, unclamping and moving the battery, wherein the lifting device comprises: a pulling device body movably installed on the transporting frame; A traction drive motor provided on the main body of the traction device; A traction speed reducer connected to decelerate the rotational force of the traction drive motor; And a hoisting drum connected to the output portion of the traction reducer and rotated to wind the hoisting rope, wherein the hoisting and lowering ropes are detected and applied by detecting the rotation speed and the rotation angle of the hoisting drum to detect the hoisting distance of the hoisting rope And drum rotation detecting means for controlling the driving of the traction drive motor according to the detected traverse distance.

The drum rotation detecting means may comprise a limit switch connected to a connection flange connected to a central shaft end of the hoisting drum and sensing the rotation speed and rotation angle of the rotation shaft and outputting it as an electric signal.

The hoisting drum is connected to one side of the output section and has a first hoisting drum formed with a plurality of hoisting grooves spaced apart from each other, the hoisting rope being wound on the outer circumferential surface, and a second hoisting drum connected to the other side of the output section, And the limit switch may be constituted by a rotary cam type limit switch or a rotary gear type limit switch provided at any one of the central axes of the first hoisting drum or the second hoisting drum.

Meanwhile, a distance measuring unit measures the distance from the main body of the towing device to the battery mounting part of the electric vehicle and applies the measured distance to the control part. A memory unit for storing distance data to a battery mounting unit according to the type of the electric vehicle; And the like.

According to the traction type battery automatic exchange system for an electric vehicle having the hoisting distance adjusting function according to the present invention, while the drive of the traction drive motor is controlled using the hoisting distance of the hoisting rope sensed by the drum rotation detecting means, It is possible to accurately and safely perform the replacement operation of the battery.

FIG. 1 is a perspective view illustrating the overall structure of a pulling-type battery automatic exchange system for an electric vehicle having a hoisting distance adjusting function according to an embodiment of the present invention.
FIG. 2A and FIG. 2B are enlarged perspective views of parts A and B of FIG. 1 for explaining a pulling-type battery automatic exchange system for an electric vehicle having a hoisting distance adjustment function according to an embodiment of the present invention;
FIGS. 3A to 3C are views showing a state in which an automatic battery retractable battery replacement system for an electric vehicle having a hoist distance adjustment function according to an embodiment of the present invention is installed;
FIG. 4 is an enlarged view showing a main part of a pulling-type battery automatic exchange system for an electric vehicle having a hoisting distance adjusting function according to an embodiment of the present invention;
5A and 5B are views for explaining a clamping device of a traction type battery automatic exchange system for an electric vehicle having a hoisting distance adjusting function according to an embodiment of the present invention;
FIG. 6 is a view for explaining an operation of a pulling-type battery automatic exchange system for an electric vehicle having a hoisting distance adjusting function according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing the overall structure of a pulling-type battery automatic exchange system for an electric vehicle having a hoisting distance adjusting function according to an embodiment of the present invention. FIGS. 2a and 2b show a hoisting distance adjusting function 3A and 3C are enlarged perspective views of parts A and B of FIG. 1 for explaining a pulling-type battery automatic exchange system for an electric vehicle having an electric motor vehicle, FIG. 3A is a plan view, FIG. 3B is a front view, and FIG. 3C is a side view.

1 to 3C, a traction type battery automatic exchange system for an electric vehicle having a hoist distance control function according to an embodiment of the present invention includes a main transfer rail device 1 for replacing a battery of an electric vehicle, And the exchange device M is constituted by a traction system consisting of a transfer frame 2, a traction device 3, a lifting rope 4 and a clamping device 5 .

The traction device 3 is configured to be mounted on the transfer frame 2 and to be moved thereon. The traction device main body 31, the traction body drive device 32, the second slider 33, the traction drive motor 34, The present invention is characterized in that it includes a speed reducer 35, a hoisting drum 36 and a pulling wheel 37. The present invention is characterized in that the number of revolutions and rotation angle of the hoisting drum And a drum rotation detecting means 30 for detecting the rotation of the drum and applying it to the control unit.

FIG. 4 is an enlarged view showing a main part of an automatic retractable battery exchange system for an electric vehicle having a hoist distance control function according to an embodiment of the present invention.

4, the drum rotation detecting means 30 is connected to the connecting flange 30b connected to the end of the center shaft 364 of the hoisting drum 36 so that the rotary shaft 30c is connected to the rotary shaft 30c, And a limit switch 30a for sensing a rotation angle.

As shown in Figs. 3A and 3B, the hoisting drum 36 is a member operated to wind and unwind the hoisting rope 4 wound on the outer circumferential surface thereof by the rotational force transmitted from the traction reducer 35, And is connected to the output section 352 of the output section 352 to be rotated.

The hoisting drum 36 is connected to one output 352 of the traction reducer 35 and has a first hoisting drum 361 formed on its outer circumference with a plurality of hoisting grooves spaced apart from each other and a second hoisting drum 361 connected to the other output 352 And a second hoisting drum 362 having a plurality of winding grooves spaced from each other on the outer circumferential surface thereof.

The first and second hoisting drums 361 and 362 are formed in a cylindrical shape and a center shaft 364 connected to the other end is rotatably supported by a bearing block 363 having a bearing therein.

On the other hand, the rotation axis 33 of the limit switch 31 may be coupled to the end of the center shaft 364 of the first hoisting drum 361, but in this embodiment, the center axis 364 of the second hoisting drum 362 .

The limit switch 30a may be provided with various types of limit switches capable of detecting the number of revolutions, the angle of rotation, the rotation speed, and the like during the rotation of the hoisting drum. However, the amount of rotation of the rotary shaft 30c can be effectively It is preferable that it is constituted by a rotary cam type limit switch or a rotary gear type limit switch which can be detected.

The rotary cam type limit switch is provided inside the switch housing and has a camshaft (not shown) connected to the rotary shaft 30c through a coupling, and the camshaft is positioned in the circumferential direction A plurality of cams (not shown) having different operating members (not shown) are provided at regular intervals, and a plurality of contact switches (not shown) The rotation speed, the rotation angle, and the like at the time of the rotation of the hoisting drum 36 in accordance with the switching signal generated while each cam is in contact with the contact switch at the time of rotation of the hoisting drum 30c.

The rotary gear type limit switch is similar to the above-described cam type limit switch in that, when the gear shaft (not shown) is rotated, the gear is brought into contact with the contact switch (not shown) Rotation speed, rotation angle, and the like at the time of rotation of the electric motor 1. In this embodiment, as shown in Fig. 4, the limit switch is composed of a rotary gear type limit switch.

Meanwhile, the pulling type battery automatic exchange system for an electric vehicle having the hoisting distance adjusting function according to an embodiment of the present invention is provided with a battery mounting part (not shown in the drawing) (Distance data from the floor to the battery mounting portion or distance data from the battery mounting portion to the main body of the traction device) according to the type of the electric vehicle is stored And a memory unit (not shown).

The distance measuring unit may be a variety of known devices capable of measuring the distance. In the present embodiment, the ultrasonic sensor module measures the time of returning a sound wave to the object and converts the time to a distance.

In addition, an RFID transceiver (not shown) for recognizing the type of the electric vehicle, and an image sensor module (not shown) for recognizing the type of the electric vehicle by imaging the electric vehicle may be provided. The RFID transceiver and the image sensor module recognize the information of the electric vehicle entering the charging station to replace the battery and provide the information to the control unit so that the RFID transceiver and the image sensor module compare the lifting distance of the lifting rope 4 detected by the drum rotation detecting unit 30 And provides basic data for controlling the driving of the traction drive motor 34. [

On the other hand, the main body 31 of the drawer is movably mounted on the longitudinal member 211 of the transfer frame 2 and is formed in a substantially rectangular plate shape, and has a traction drive motor 34, a traction reducer 35, A hoisting drum 36 is provided and a second slider 33 is provided at the bottom edge.

The traction body drive device 32 generates and applies a driving force for moving the traction device main body 31 as shown in FIG. 2B so that the traction device main body 31 is moved in the direction orthogonal to the main conveyance rail device 1 And a driving wheel 322 connected to the output shaft of the moving body motor 321. The moving body motor 321 is provided with a reduction gear and is provided on the main body 31 of the traction device.

The second slider 33 is formed in the pulling device body 31 so as to be connected to the auxiliary transferring rail 24 and has a rectangular block shape similar to the first slider 23 described above, And a sliding groove 331 is formed so as to be connected thereto.

The traction drive motor 34 is provided on the upper surface of the traction device main body 31 to generate and apply a rotational force enabling winding and unclamping of the lifting rope 4 by the lifting drum 36, The output shaft of the traction drive motor 34 is connected to the output shaft of the traction drive motor 34. The output shaft of the traction drive motor 34 is connected to the output shaft of the traction drive motor 34. The output shaft of the traction drive motor 34 is connected to the output shaft of the traction drive motor 34, And are connected to each other by an apparatus 351.

3B, the pulling wheel 37 is a pulley-type device usually referred to as a pulley or the like. The pulling wheel 37 is a pulley-type device, as shown in FIG. 3B, for guiding the movement of the lifting rope 4, (5). The pulling wheel 37 can be arranged in various numbers according to the shape, size and load of the clamping device 5 or the load of the battery 9, but in this embodiment, the clamping device 5 First and second pulling wheels 371 and 372 provided on the front and rear sides of the clamping device 5; a third pulling wheel 373 and a fourth pulling wheel (not shown) provided on the other side of the clamping device 5;

The pulling wheel 37 is composed of a circular wheel body rotatably mounted on the support shaft through a bearing and having a lift rope mounting groove and a wheel fixing bracket rotatably supporting the wheel body and fixing the wheel body to the body of the traction device have.

In addition, the traction device 3 includes first to fourth guide wheels 381, 382, 383, and 384 for guiding the movement path so that the lifting rope 4 is vertically disposed on the first to fourth traction wheels. The first to fourth guide wheels 381, 382, 383 and 384 are installed on the main body 31 of the traction device, which is formed on the same vertical axis line as that of the above-described pulling wheel and coaxial with the first to fourth pulling wheels.

1, the main conveying rail apparatus 1 is supported by a hanger member (not shown) supported by a vertical column (not shown) installed on the floor surface or installed on the ceiling of the filling station, Lt; / RTI >

Meanwhile, the exchange device M is constituted of a plurality of units, and the operation of removing the discharge battery mounted on the electric vehicle at the time of replacing the battery and the operation of attaching the rechargeable battery to the battery mounting portion of the electric vehicle are performed simultaneously.

The conveying frame 2 is configured to be conveyed on the main conveying rail apparatus 1 and has a conveying body 21, a conveying body driving device 22, a first slider 23, and an auxiliary conveying rail 24 do.

The conveying body 21 is arranged between the main conveying rail apparatuses 1, and a pair of the longitudinal members 211 and the transverse members 212 formed by a steel or steel plate are connected and formed in a substantially rectangular frame- do.

The transporting body driving device 22 is configured to generate and apply a driving force for moving the transporting body 21 and includes a moving body motor 221 provided on the transporting body 21 and provided with a speed reducer, And a driving wheel 222 connected to the output shaft of the driving wheel 222. [

At this time, the driving wheel 222 is constituted by a circular wheel, and the outer circumferential surface of the driving wheel 222 is in close contact with the side surface of the rail member 12, In addition, the driving wheel 222 may be configured as a gear, and when the driving wheel is configured as a gear, a rack gear must be formed so that the lateral teeth of the rail member can be meshed with each other.

The first slider 23 is installed at the bottom of the transverse member 212 of the conveying body 21 so as to be connected to the main conveying rail apparatus 1 and is connected to the rail member 12 of the main conveying rail apparatus 1 The second slider 33 is formed in a structure similar to that of the second slider 33 described later.

The auxiliary conveyance rail 24 is disposed in the longitudinal direction of the conveyance body 21 orthogonal to the main conveyance rail apparatus 1. The auxiliary conveyance rail 24 is a square bar having a guide protrusion 241 similar to the above- Shape.

On the other hand, the lifting rope 4 is formed by bundling a plurality of strands of a plurality of strands. The lifting rope 4 is wound and unwound by the lifting device 3, And one end thereof is wound on a winding groove of a hoisting drum 36 which is fixed on the hoisting drum 36 and wound up so as not to be tangled with each other. The other end of the lifting rope 4 is fixed to the fixed portion 39 provided on the upper surface of the pulling device main body 31.

The lifting rope 4 is wound around the winding groove of the first hoisting drum 361 and is wound around the first guide wheel 381 and the first pulling wheel 371 because the hoisting ropes 4 are composed of four tow wheels 37 in this embodiment. A first lifting rope connected to the first fixing portion 391 via the second guide wheel 382 and the second pulling wheel 372 and a second lifting rope 382 wound around the winding groove of the first lifting drum 361, The second lifting rope connected to the second fixing portion 392 and the third lifting rope wound around the third lifting rope of the second lifting drum 362 via the third guide wheel 383 and the third pulling wheel 373, 393 and the third lifting rope wound around the winding groove of the second hoisting drum 362 and fixed to the fourth fixing portion 394 via the fourth guide wheel 384 and the fourth pulling wheel (not shown) And a fourth hoistway pro connected to the second hoistway. At this time, the first to fourth lifting ropes 4 should be wound so as to be lowered or raised at the same time during normal and reverse rotation of the first and second lifting drums 361 and 362.

5A and 5B are views for explaining a clamping device of a pulling-type battery automatic exchange system for an electric vehicle having a hoisting distance adjusting function according to an embodiment of the present invention, wherein FIG. 5A is a perspective view showing a bottom structure, Is a perspective view schematically showing a shape appearing on a side surface.

The clamping device 5 is a device for clamping, unclamping and moving the battery 9 while being connected to the lifting rope 4 and being lifted and lowered. The clamping device 5 includes a clamp body 51, a gripping holder 52, ).

The clamp main body 51 is provided with a gripping holder 52 and a holder driving device 53 which will be described later and which are pulled by a lifting rope 4 wound on a pulling wheel 37 provided on the upper surface, have.

As shown in FIG. 5B, the phage holder 52 is rotatably mounted on the clamp body 51, and is a member for clamping and unclamping the battery 9, and is configured to be pivotally rotatable about the front and rear corners of the clamp body have.

The gripping hook 521 is formed at the end of the grip holder 52 and engages with the step portion 932 of the engaging groove 931 provided in the battery 9 to be fixed And is released from the engaging groove 931 when rotated to the outside, so that the fixed state is released.

The holder driving device 53 is a device for applying a driving force for driving the grip holder 92. The holder driving device 53 may be variously configured without limitation as long as it has a driving mechanism capable of rotating the grip holder 52, A holder drive motor 531 provided on the upper surface of the clamp main body 51 and a driven gear (not shown) engaged with the drive gear 538 coupled to the rotation shaft of the holder drive motor 531 are coupled A power transmission gear 533 composed of a plurality of gears meshed with each other to transmit the rotational force of the drive shaft 532, a slave shaft 535 rotated by the power transmission gear 533, And a worm wheel 537 connected to the coaxial shaft and interlocked with the worm wheel 536 and a worm wheel 537 rotated by engaging with the worm gear 536 and extending under the gripper holder 52.

A guide roller unit 54 is provided at each corner of the clamp main body 51 in order to allow the battery to slip and stably be seated and released when the battery 9 is clamped and unclamped.

At this time, the guide roller device 54 is constituted by a plurality of rollers 543 provided between a pair of side plates 542 spaced from the base plate 541, and the roller 543 is disposed between the end portions of the side plates 542 So as to smoothly receive and smoothly receive the battery when the battery is seated.

5A, the battery includes a profile structure 91 in which a plurality of skeletal profiles are connected to each other such that a storage space in which battery cells (not shown) are housed is provided, and the edge of the profile structure 91 A plurality of side blocks 92 mounted on the side of the profile structure 91 to support the weight of the side plates 92 when stacked or mounted, a phage holder (not shown) provided on the battery mounting portion (not shown) A clamp block 93 to which the grip holder 52 of the clamping device 5 is hooked, a case cover 94 provided on the outer surface of the profile structure, and a power connection device 95 connected to the power supply side .

At this time, the clamp block 93 is formed in the shape of a rectangular frame having upper and lower latching grooves 931, and a step portion 932 in which the latching hooks 521 of the latching holders 52 are hooked on the upper and lower portions of the latching grooves 931 Respectively.

Hereinafter, the operation of the traction type battery automatic exchange system for electric vehicles having the hoist distance control function according to the embodiment of the present invention will be described.

FIG. 6 is a view for explaining an operation of a pulling-type battery automatic exchange system for an electric vehicle having a hoisting distance adjusting function according to an embodiment of the present invention, and shows a state in which the clamping device is lowered.

1 to 6, when an electric vehicle in which a battery is discharged during operation enters a charging station or is predicted to enter through a wireless communication, a control unit (not shown in the figure) of a battery automatic exchange system And a system in which a signal is received from the entrance sensing device to control the automatic battery exchange system as a whole) applies a driving signal to operate the two switching devices M. [ At this time, since the preceding replacement apparatus M is for removing the discharge battery of the battery mounting portion of the electric vehicle, the battery M is not moved to the clamping device 5, Since the rechargeable battery must be attached to the battery mounting portion, the battery is moved to the mounted state.

Hereinafter, the operation of the above-described switching device M will be described in detail. The drive wheel 222 connected to the output shaft is rotated and moved along the rail member 12 when the movable body motor 221 of the transport body drive device 22 is rotated in accordance with the drive signal of the control unit, The main transferring rail device 1 is moved in the X-axis direction toward the battery mounting portion of the electric vehicle.

At the same time, the pulling main body driving device 32 is operated in accordance with the driving signal of the control part so that the pulling device main body 31 rides on the auxiliary feeding rail 24 and the clamping device 5 moves along the Y- As shown in FIG.

When the clamping device 5 is properly positioned in the battery mounting portion of the electric vehicle as described above, the traction drive motor 34 is operated under the control of the control portion to rotate in the forward direction and the rotational force of the traction drive motor 34 is transmitted to the traction reducer 35 And is output to the output unit 352. Thus, the first and second hoisting drums 361 and 362 coupled to the output unit 352 interlock with each other and rotate.

When the first and second hoisting drums 361 and 362 are rotated forward, the hoisting rope 4 wound on the hoisting grooves on the outer circumferential surface thereof is loosened and guided by the first to fourth guide wheels 381, 382, 383 and 384, The wheel 37 (the first to fourth pulling wheels) is also gradually moved downward, and the clamping body 51 to which the pulling wheel 37 is coupled is lowered.

When the first and second hoisting drums 361 and 362 rotate in this manner, the center shaft 364 is rotated and the rotary shaft 30c connected via the connection flange 30b is rotated, so that the limit switch 30a is turned on, And applies it to the control unit. The control unit detects the descent distance of the lifting rope 4 from the switching signal applied from the limit switch 30a and detects the distance between the descent distance of the detected lifting rope 4 and the battery mounting point of the electric vehicle entering the charging station The driving of the traction drive motor 34 is controlled. At this time, the control unit can obtain the distance to the point of the battery mounting part by receiving or reading out from the distance measuring unit and the memory unit and processing.

When the traction drive motor 34 is driven in this manner, the lifting rope 4 is lowered only by the predetermined lowering distance, so that the clamping body 51 is accurately lowered so that the gripping holder 52 is moved to the clamp block 93 of the battery 9, .

In this state, when the holder driving device 53 is operated to rotate the phage holder 92 inward, the latching hook 921 of the phage holder 92 is inserted into the latching groove 931, Lt; / RTI >

Thereafter, when the traction drive motor 34 is rotated in the opposite direction, the hoisting drum 36 is rotated in the reverse direction, so that the hoisting rope 4 is lifted. As the clamp body 51 connected thereto is lifted, The battery 9 is removed or removed from the battery mounting portion, so that the discharging operation of the discharging battery 9 is completed. At this time, the raising operation of the lifting rope 4 is also performed by the control unit driving the traction drive motor 34 in accordance with the switching signal applied from the limit switch 30a so that the lifting rope 4 is lifted only by the predetermined rising distance, Can be prevented from colliding with the traction device 3 in advance.

On the other hand, when the discharging battery mounted on the electric vehicle is completed by the preceding exchanging device M as described above, the preceding exchanging device M M is moved along the main conveying rail apparatus 1 while being moved back from the replacement area.

Thereafter, the succeeding exchanging device M is moved to the battery replacement area and is transported to the transporting frame 2, the traction device 3, the lifting rope 4, and the clamping device 4, similarly to the above- The device 5 is operated to position the rechargeable battery mounted on the battery mounting portion of the electric vehicle.

In this state, when the holder drive device 53 is operated to rotate the grip holder 92 outwardly, the hook 921 of the grip holder 92 hooked on the step portion 932 of the battery is released, The restraint state is canceled.

Thereafter, when the traction drive motor 34 is rotated in the opposite direction, the lifting rope 4 is lifted and the lifting operation of the clamping body 51 is performed. When the transporting body driving device 22 is driven again, 1) to move to a predetermined position.

It is to be understood that the present invention is not limited to the above-described embodiment, but may be embodied in the following claims It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

M: Exchange device 1: Main feed rail device
11: transverse bar 12: rail member
2: feed frame 21: feed body
22: conveying body drive device 23: first slider
24: auxiliary conveying rail 3: traction device
30: drum rotation detecting means 30a: limit switch
30b: connecting flange 30c:
31: pulling device body 32: pulling body drive device
33: second slider 34: traction drive motor
35: Traction reducer 36: hoisting drum
37: towing wheel 38: guide wheel
4: lifting rope 5: clamping device
51: clamp body 52: grip holder
53: holder drive device 9: battery

Claims (4)

1. A pulling-type battery automatic exchange system for an electric vehicle, comprising: a main transferring rail device installed at a position higher than a garage of an electric vehicle; and an exchange device (M) installed in the main transferring rail device,
Wherein the exchange device comprises: a conveyance frame moved on the main conveyance rail device; A traction device mounted on and moved to the transport frame; A lifting rope wound and unwound by the towing device; And a clamping device connected to the lifting rope so as to be lifted and lowered to clamp, unclamp and move the battery,
The traction device includes a traction device body movably installed on the transport frame; A traction drive motor provided on the main body of the traction device; A traction speed reducer connected to decelerate the rotational force of the traction drive motor; A hoisting drum connected to an output portion of the traction decelerator and rotated to wind the hoisting rope, and a control unit for detecting the rotation speed and rotation angle of the hoisting drum and detecting the hoisting distance of the hoisting rope by the control unit And drum rotation detecting means for controlling the driving of the traction drive motor in accordance with the detected traverse distance,
Wherein the drum rotation detecting means comprises a limit switch connected to a connection flange connected to a central shaft end portion of the hoisting drum and detecting a rotation number and a rotation angle of the rotation shaft and outputting the detection signal as an electric signal. Traction battery automatic exchange system for electric car with distance control function.
delete The method according to claim 1,
Wherein the hoisting drum comprises a first hoisting drum connected to one side of the output section and having a plurality of hoisting grooves spaced apart from each other, the hoisting rope being wound on the outer circumference of the hoisting drum, and a second hoisting drum connected to the other side of the output section, A two-drum drum,
Characterized in that the limit switch is constituted by a rotary cam type limit switch or a rotary gear type limit switch provided at any one of the central axes of the first hoisting drum or the second hoisting drum. Battery automatic exchange system.
The method according to claim 1 or 3,
A distance measuring unit measuring the distance from the main body of the towing device to the battery mounting part of the electric vehicle and applying the measured distance to the control part; And
A memory unit for storing distance data to the battery mounting unit according to the type of the electric vehicle; Wherein the at least one of the at least one of the at least two of the plurality of the at least one of the at least one of the at least two of the at least one of the at least two of the at least one of the at least one of

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