KR20120124253A - System for auto-exchanging of electric vehicle battery - Google Patents

Abstract

The present invention relates to a system for automatically replacing a battery for an electric vehicle, the system for replacing a battery in a vehicle in which the electric battery is mounted on one side of the upper side, formed in a position higher than the garage of the electric vehicle, multi-layer, multi-row loading A mounting table having a space portion; Battery pedestals disposed in the load space portions of the load table and configured to move horizontally to load space portions in different rows; Fixed guide rails arranged in pairs on the front, rear, left, and right sides of the mounting table and the upper part of the electric vehicle; A variable guide rail moving horizontally along the fixed guide rail in an X axis or a Y axis; A moving rail which horizontally moves along the variable guide rail in the Y-axis or the X-axis and moves up and down; And a gripping means installed at a lower end of the movable rail to pick up and exchange the battery of the electric vehicle or the battery transferred to the upper portion of the loading table. The battery that is to be discharged can be easily exchanged with any one of the charged batteries in a short time from the mounting table of the charged batteries installed in the platform and the like, thereby providing an effect of greatly improving the efficiency.

Description

System for auto-exchanging of electric vehicle battery

The present invention relates to an automatic battery replacement system for an electric vehicle, and more particularly, to a system for automatically checking the entry of an electric vehicle and automatically replacing a battery to be discharged with a fully charged battery.

In general, automobiles mainly use gas such as gasoline and diesel as fuel, and gas such as LPG and LNG. These oils and gases are limited underground resources, and thus, they are becoming increasingly expensive and cause environmental pollution. As a result, demand for alternative fuels is increasing rapidly.

Accordingly, in recent years, as an alternative fuel for automobiles, many electric batteries have been commercialized, but such electric batteries have not been widely used due to the problem of charging for a long time.

SUMMARY OF THE INVENTION An object of the present invention is to provide an automatic replacement system for an electric vehicle battery in which a battery to be discharged is easily and automatically replaced in a short time without being charged for an electric vehicle battery for a long time.

In particular, in the case of a bus, it is an object of the present invention to provide an automatic replacement system for an electric vehicle battery that maximizes efficiency by allowing a battery to be easily discharged in a short time with a battery to be discharged at an exchange such as a specific platform.

The automatic exchange system for an electric vehicle battery according to the present invention for achieving the above object, in the system for replacing the battery in the vehicle is mounted on the upper side of the electric battery, formed in a position higher than the garage of the electric vehicle A loading table having a multi-layer, multi-row loading space portion; Battery pedestals disposed in the load space portions of the load table and configured to move horizontally to load space portions in different rows; Fixed guide rails arranged in pairs on the front, rear, left, and right sides of the mounting table and the upper part of the electric vehicle; A variable guide rail moving horizontally along the fixed guide rail in an X axis or a Y axis; A moving rail which horizontally moves along the variable guide rail in the Y-axis or the X-axis and moves up and down; And a gripping means installed at a lower end of the moving rail to pick up and exchange the battery of the electric vehicle or the battery transferred to an upper portion of the mounting table.

In this case, the stop monitoring sensor unit for detecting whether the electric vehicle is stopped at the stop line; An image sensing device configured to detect whether the battery mounting groove is located in a moving region of the moving rail by stopping the electric vehicle, and detecting a range of the battery mounting groove located from an absolute position of the moving rail; And a control unit for driving the variable guide rail and the moving rail according to the signal detected by the image sensing device to apply an operation signal so that the holding means of the moving rail is positioned on the same vertical line as the battery mounting groove. It is preferable.

At this time, the image sensing device comprises: a CCD camera for photographing whether the electric vehicle is stopped and the battery mounting groove is located in the moving region of the moving rail; An image information processing unit which receives an image signal from the CCD camera and processes the image signal; A memory unit for storing a reference value for position correction of the moving rail; And a calculation unit for calculating a position correction value based on the reference value stored in the memory unit and the stop position of the electric vehicle detected by the image information processing unit, wherein the controller is configured to perform the operation on the basis of the position correction value calculated by the operation unit. It is preferable to apply an operation signal to the drive means to drive the positions of the variable guide rail and the moving rail from the absolute position to the corrected position.

In particular, it is preferable to arrange two or more CCD cameras on a diagonal line in order to minimize the errors generated during image recognition by the image recognition device.

On the other hand, the loading space of the loading table is a multi-layered structure consisting of three rows, the loading space of the central row penetrates up and down, the lifting rod is moved up and down to the penetrated portion, and located on both sides of the loading space of the central row In the left and right rows of loading spaces, it is preferable that the battery holder on which the buffer battery is mounted is arranged to be slidable in the horizontal direction.

In this case, it is preferable that a through hole is formed in the battery cradle to allow the lifting rod to pass therethrough.

Here, an accommodating space part may be further formed at one side of the lowermost layer of the left or right column loading space part for accommodating a battery pedestal equipped with a buffer battery or a discharge battery as the loading space part of the mounting table.

As described above, according to the automatic replacement system for a battery for an electric vehicle according to the present invention, any one battery having been charged from a mounting table of charged batteries installed in a platform for a discharged battery installed in a battery mounting groove of the electric vehicle. By being able to easily exchange within a short time, the effect is greatly improved.

1 is a perspective view illustrating a state in which an electric vehicle replaces a battery in an automatic battery exchange system for an electric vehicle according to the present invention.
Fig. 2 is a side view of Fig. 1; Fig.
Figure 3 is a front view of Figure 1;
4 is an internal configuration showing the configuration and operation of the automatic battery replacement system in FIG.
Figure 5 is an enlarged perspective view showing only the mounting table in FIG.
6 is a partially enlarged perspective view of FIG. 5.
7 is a block diagram showing the control relationship of the automatic battery exchange system according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view illustrating a state in which an electric vehicle exchanges a battery in an automatic battery exchange system for an electric vehicle according to the present invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 is a front view of FIG. 1.

In addition, Figure 4 is an internal configuration showing the configuration and operation of the automatic battery replacement system in Figure 1, Figure 5 is an enlarged perspective view showing only the mounting table in Figure 4, Figure 6 is a partially enlarged perspective view of FIG.

For reference, in the embodiment of the present invention, an electric vehicle will be described by taking a bus as an example, and a battery to be discharged will be referred to as a discharge battery, and a charged battery will be collectively referred to as a buffer battery.

First, as illustrated in FIGS. 1 to 3, an electric battery B is detachably mounted on the rear side of the upper frame of the bus 2. That is, a battery mounting groove 10 for mounting an electric battery B is formed at the rear side of the upper frame of the bus 2, and the battery mounting groove 10 is opened by an opening / closing door 12 that slides back and forth. Or a closed structure.

On the other hand, the hoisting frame (or specific battery exchange) of the bus is provided with a hoisting frame 100 having a horizontal frame 120 and a vertical frame 110 having a substantially L-shape.

Here, the vertical frame 110 of the elevating frame 100 serves as a support from the bottom surface, the horizontal frame 120 is responsible for the roof function to protect the passengers to get on and off the bus in the platform from the snow, rain and the like. In particular, in the vertical frame 110, a plurality of fully charged batteries B are disposed to perform a function of exchanging a discharge battery of a bus with a buffer battery as necessary.

The vertical frame 110 has a mounting table 300 having a plurality of stacking spaces 310 and 320 in the longitudinal direction, and the loading spaces 310 and 320 of the mounting table 300 are horizontal directions, respectively. The battery pedestal 250, which is slide-transported to the loading space part of the other horizontal row, is installed.

Here, the loading spaces 310 and 320 need not be limited to the number of floors, but it is preferable to configure the horizontal rows in three rows. The reason for this is to allow the battery pedestal 250 disposed in the left and right rows of the loading space 320 to be transported to the loading space 310 of the central row based on the loading space 310 of the central row.

That is, among the stacking space portions 310 and 320 formed in three rows in the horizontal direction, the battery stand 250 is not disposed in the load space portion 310 in the center row, and the battery stand 250 is provided only in the load space portion 320 in the left and right rows. By arranging the battery pedestal 250 disposed in the loading space 320 in the left and right rows, the horizontal movement is performed to the loading space 310 in the center row according to the electrical signal.

Here, each of the loading spaces 310 and 320 is formed to penetrate up and down. In particular, the central row loading spaces 310 are necessarily formed to penetrate up and down, and the loading spaces 320 in the left and right rows are penetrated. It may be made in the form of a shield or in a shielded form.

In addition, the battery B is mounted, and the battery pedestal 250 which is disposed in the loading space 320 and slides horizontally also has a structure in which a through hole 252 is formed in the center portion.

Meanwhile, the battery B mounted on the battery pedestal 250 positioned in any load space portion of the center row is lifted while lifting the load space portion 310 of the center row in the vertical direction. The lifting rod 350 is provided.

In addition, one of the lowermost rows of the left and right column loading space portion 320 of the mounting table 300 to supply a battery base equipped with a buffer battery to the empty loading space portion 320 of the mounting table 300 Or, the storage space portion 340 for collecting a battery support on which the discharge battery is mounted is formed.

Each of the loading spaces 310 and 320, the storage space 340, and the lifting bar 350 in the loading table 300 having the above configuration are connected to the control unit to be described later, and the respective loading spaces due to the operation according to an electrical signal. To move the battery bracket 250 disposed in the horizontal portion (310,320) in the horizontal direction, to horizontally move the battery bracket 250 to the storage space 340 and the loading space (310,320), elevating the lifting bar (350) This will be described later in detail.

On the other hand, a pair of fixed guide rails 210 are installed on the front upper side and the rear upper side of the horizontal frame 120 in parallel with each other in the horizontal direction, and the variable guide moves horizontally along the fixed guide rail 210 in the horizontal direction. The rail 220 is provided.

The variable guide rail 220 is installed in the longitudinal direction, the lifting and lifting is made with respect to the variable guide rail 220, and the movable rail 230 to move horizontally in the vertical direction along the variable guide rail 220 is installed, A holding means 240 for holding a battery is installed at the lower end of the moving rail 230.

Here, the variable guide rail 220, the moving rail 230 and the holding means 240 may be provided in only one set, but the pickup of the discharge battery mounted in the battery mounting groove 10 of the bus (2), It is preferable that the process of picking up the buffer battery from the mounting table 300 is made of two sets side by side.

In the figure, reference numeral 200 denotes the fixed guide rail 210, the variable guide rail 220, the moving rail 230 and the holding means 240 collectively, showing a battery exchange system. will be.

For reference, in the exemplary embodiment of the present invention, the fixed guide rails 210 are installed in pairs in the horizontal direction on the front upper side and the rear upper side of the horizontal frame 120, respectively, and the variable guide rail 220 is the fixed guide. For example, the rails 210 are installed in the longitudinal direction, but in some cases, the fixed guide rails 210 are installed in pairs on the left and right upper sides of the horizontal frame 120 in parallel, respectively, and the variable guide rails. 220 may be installed in the transverse direction with respect to the fixed guide rail 210, of course.

In addition, the vertical frame 110 and the fixed guide rail 210 is provided with an automatic replacement system 200 of the battery for an electric vehicle according to the present invention, that is, a mounting table 300 on which a plurality of battery pedestals 250 are loaded. The variable guide rail 220 and the moving rail 230 are fixed at a designated position, but the bus 2 entering the platform is variable and in particular, since precise position control is impossible, the moving rail 230 is set according to the set absolute position. It is very difficult for the gripping means 240 to always be on the same vertical line as the battery seated in the mounting groove of the bus.

That is, the bus may be located in the location area for battery replacement by stopping at the set position along the guide stop line, but the position is set correctly (the position at which the holding means 240 of any one moving rail 230 is set). Since it is impossible to stop at, it is important for the moving rail 230 to find the position of the battery mounted in the battery mounting groove 10 of the bus 2 by itself and to arrange the same vertical line.

Thus, in the present invention, as shown in Figure 7, by using the image recognition device detects the position difference of the battery mounted on the holding means 240 of the mobile rail 230 and the battery mounting groove 10 of the bus control unit By transmitting the position correction data, the position of the same parallel line is detected so that the holding means 240 of the moving rail 230 is positioned on the same vertical line as the battery of the bus.

Therefore, in the present invention, the stop monitoring sensor unit for detecting whether the bus stopped at the stop line. The bus is stopped to detect whether the battery mounted in the battery mounting groove 10 is located in the moving region of the moving rail 230, and the battery mounted in the battery mounting groove 10 is moved from the absolute position of the moving rail 230. It includes an image detecting unit for detecting in which range.

In addition, the operation means is applied to the driving means for driving the variable guide rail 220 and the moving rail 230 according to the signal detected by the image sensing unit so that the holding means 240 of the moving rail 230 is It further comprises a control unit to be located on the same vertical line as the battery mounting groove (10).

Here, the controller is connected to each of the battery pedestal 250, the circuit to determine whether the mounting of the battery, and is also responsible for the function of determining the complete state of charge of the battery seated on the battery pedestal 250, respectively.

Accordingly, the discharged battery picked up from the electric vehicle (bus) is transferred to the empty battery cradle 250, and the variable guide rail 220 and the moving rail 230 are driven so that only the buffer battery is transferred to the electric vehicle. It is also responsible for controlling the means.

The image sensing unit may include: a CCD camera for photographing whether the bus stops and the battery mounting groove 10 is located in the moving region of the moving rail 230; an image information processing unit for receiving and processing a video signal from the CCD camera; And a memory unit for storing a reference value for position correction, and a calculation unit for calculating a position correction value based on the reference value stored in the memory unit and the stop position of the bus detected by the image information processing unit. The control unit applies an operation signal for driving the positions of the variable guide rail 220 and the moving rail 230 from the absolute position to the corrected position based on the position correction value calculated by the driving means.

For reference, in order to minimize the errors generated during image recognition by the image recognition device, it is preferable to arrange two or more CCD cameras on a diagonal line to calculate the position data by comparing the data extracted from each CCD camera. The predetermined absolute position is stored in the memory unit.

Referring to the operation relationship for the automatic replacement system for an electric vehicle battery composed of the above configuration as follows.

First, a buffer battery or a buffer battery and a discharge battery are mounted on the battery pedestals 250 in the storage rack 300 of the vertical frame 110, that is, the left and right thermal storage spaces 320 of the storage rack 300, respectively. In the case where the bus 2 enters the platform and inputs a signal for battery replacement, the bus 2 exchanges the discharge battery with the buffer battery.

That is, after the bus 2 enters the platform and is stopped along the stop line, the battery recognition signal is input and the opening / closing cover 12 of the battery mounting groove 10 is opened. After performing the position correction of any one of the moving rails 230, the holding means 240 is installed at the lower end of the moving in the same vertical line as the battery mounted in the mounting groove 10 of the bus, the process of When described in more detail as follows.

When the bus enters the platform and stops along the stop line and opens the opening / closing cover 12 of the battery mounting groove 10, the battery mounted in the battery mounting groove 10 is held by any one of the moving rails 230. The bar is positioned on the same vertical line as close to 240, the image recognition device is sent to the control unit to correct the position of the moving rail 230.

That is, when the position of the battery mounting groove 10 photographed by the CCD camera is not located on the same vertical line as the gripping means 240 of the moving rail 230, the image is captured and transmitted to the image information processing unit. The gripping means 240 of the current moving rail 230 is located and the calculation unit calculates the coordinate value of the absolute position and transmits it to the control unit, and the control unit controls the variable guide rail 220 and the moving rail 230 according to the transmitted coordinate value. By applying the operation signal to move to the position corrected by the driving means, the battery mounted in the battery mounting groove 10 of the bus and the holding means 240 of the moving rail 230 are corrected to be located on the same vertical line.

That is, one of the variable guide rails 220 is moved along the pair of fixed guide rails 210 in the X-axis or Y-axis direction by application of a drive signal of the driving means by the controller, and the variable guide rails 220 are moved. By moving the moving rail 230 in the Y-axis or X-axis direction, the holding means 240 installed on the lower end of the moving rail 230 is moved to a position corresponding to the battery mounting groove 10 of the bus to correct the position This is done.

As such, the variable guide rail 220 and the moving rail 230 are moved so that the gripping means 240 of the moving rail 230 is located on the same vertical line as the battery mounted in the battery mounting groove 10 of the bus. When, the holding means 240 of the moving rail 230 is lowered and ascended in the state of holding the battery, the horizontal movement to the X-axis and Y-axis to the lifting rod 350 of the mounting table 300 .

On the other hand, one of the variable guide rails 220, the other variable guide rails are moved horizontally in the X-axis and Y-axis to pick up the buffer battery being lifted by the lifting bar 350 of the mounting table 300, In order to form the same vertical line as the battery mounting groove 10 of the bus (2) is to move horizontally to the X-axis and Y-axis again.

Therefore, the holding means and the mobile rail holding the discharge battery is lowered on the Z-axis to seat the discharge battery on the lifting rod 350 of the mounting table 300, the holding means and the mobile rail holding the buffer battery By descending to the Z-axis to seat the buffer battery in the battery mounting groove 10 of the bus (2), the discharge battery and the buffer battery is exchanged.

Here, the transfer process of the buffer battery in the mounting table 300 will be described briefly as follows.

Among the left and right thermal loading spaces 320 of the mounting table 300, the battery cradle 250 located in any selected loading space is horizontally moved and positioned in the central thermal loading space 310 by an electrical signal. When the lifting rod 350 rises, the lifting rod 350 passes through the penetrating portion 252 of the central heat storage space 310 and the through hole 252 of the battery cradle 250, and loads only the buffer battery in the central heat. It is raised to the upper portion of the space 310.

In this state, the buffer battery is supplied by the holding means of one of the moving rails, and the discharge battery is collected by the holding means of the other moving rail. At this time, when the discharge battery is seated on the elevating rod 250 is lowered again by an electrical signal and seated on the battery stand 250 from which the buffer battery is removed, and the battery stand 250 is again the central heat storage space 310. It is possible to move horizontally from the original left and right heat loading space portion 320.

Here, the horizontal movement of the battery pedestals 250 from the left and right heat loading space portions 320 to the center heat loading space portion 310 is known in the art, such as a driving means such as a roller or a timing belt, a push by a cylinder, or the like. It can be implemented in any configuration as described, the detailed description thereof will be omitted.

On the other hand, in the state in which the discharge battery is mounted in the left and right thermal loading space portion 320 of the mounting table 300, by horizontally moving the battery stand 250, the discharge battery is mounted by the electrical signal of the control unit, and the lifting bar Lifting by 350 to send to the storage space 340, and receives the buffer battery from the storage space 340 again to move to the left and right heat load space 320.

Here, in the state in which the discharge battery is mounted in the loading space portion 320 of the mounting table 300, the discharge battery is transferred to the central heat storage space part by horizontal movement of the battery holder 250 and the rising of the lifting rod 350. Located at the upper portion of 310, the buffer battery may be exchanged with the buffer battery so that the buffer battery may be mounted in the left and right heat storage spaces 320 of the mounting table 300 again.

Technical ideas described in the embodiments of the present invention as described above may be implemented independently, or may be implemented in combination with each other. In addition, the present invention has been described through the embodiments described in the drawings and the detailed description of the invention, which is merely exemplary, and those skilled in the art to which the present invention pertains have various modifications and equivalent other embodiments. It is possible. Accordingly, the technical scope of the present invention should be determined by the appended claims.

B: Battery 2: Electric Vehicle (Bus)
10: battery mounting groove 12: opening and closing cover
100: platform (battery exchange) 210: fixed guide rail
220: variable guide rail 230: moving rail
240: holding means 250: battery support
252: through hole 300: loading table
310: central heat load space part 320: left and right heat load space part
340: storage unit 350: lifting rod

Claims (7)

In a system for replacing a battery in a vehicle that is equipped with an electric battery on the upper side,
A loading table formed at a position higher than the garage of the electric vehicle, the loading table having a multi-layered, multi-row loading space;
Battery pedestals disposed in the load space portions of the load table and configured to move horizontally to load space portions in different rows;
Fixed guide rails arranged in pairs on the front, rear, left, and right sides of the mounting table and the upper part of the electric vehicle;
A variable guide rail moving horizontally along the fixed guide rail in an X axis or a Y axis;
A moving rail which horizontally moves along the variable guide rail in the Y-axis or the X-axis and moves up and down;
And a gripping means installed at a lower end of the moving rail to pick up and exchange the battery of the electric vehicle or the battery transferred to the upper portion of the mounting table.
The method of claim 1,
A stop monitoring sensor unit for detecting whether the electric vehicle is stopped at a stop line;
An image sensing device configured to detect whether the battery mounting groove is located in a moving region of the moving rail by stopping the electric vehicle, and detecting a range of the battery mounting groove located from an absolute position of the moving rail;
And a control unit for driving the variable guide rail and the moving rail according to the signal detected by the image sensing device to apply an operation signal so that the holding means of the moving rail is positioned on the same vertical line as the battery mounting groove. Automatic battery exchange system for an electric vehicle.
The method of claim 2,
The image sensing device,
A CCD camera for photographing whether the electric vehicle is stopped and the battery mounting groove is located in the moving region of the moving rail;
An image information processing unit which receives an image signal from the CCD camera and processes the image signal;
A memory unit for storing a reference value for position correction of the moving rail;
A calculation unit calculating a position correction value based on a reference value stored in the memory unit and a stop position of the electric vehicle detected by the image information processing unit,
On the basis of the position correction value calculated by the calculation unit, the control unit applies an operation signal to the drive means to drive the position of the variable guide rail and the moving rail from the absolute position to the correction position of the battery for an electric vehicle Automatic exchange system.
The method of claim 3, wherein
And at least two CCD cameras disposed diagonally in order to minimize errors generated during image recognition by the image recognition device.
The method of claim 1,
The loading space portion of the loading table,
It is a multi-layered structure consisting of three rows, and the loading space of the central row penetrates up and down, and the lifting rod is lifted up and down to the penetrated portion. An automatic battery exchange system for an electric vehicle, characterized in that the battery base with the battery is arranged to be movable slide in the horizontal direction.
6. The method of claim 5,
The battery cradle is an automatic replacement system for an electric vehicle battery, characterized in that the through-hole is formed for passing the lifting bar.
6. The method of claim 5,
At one side of the lowermost layer of the left or right row load compartment, an accommodating space portion for accommodating a battery holder equipped with a buffer battery or a discharge battery is further formed as a load compartment of the mount. .

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