Electric vehicle charging device with easy up-down and translational movements

Abstract

The present invention relates to an electric vehicle charging device that facilitates vertical and translational movement, comprising: a support column installed vertically on the ground; a support frame installed horizontally on the support column; first to fourth driving rails formed on the support frame and arranged in a cross shape; a driving device coupled to and driven by the first to fourth driving rails; and a charger mounted on the driving device; a straight-line guide rail formed at the intersection of the first to fourth driving rails and connected between the driving rails to guide straight-line driving; an actuator for raising and lowering the straight-line guide rail; each of the first to fourth driving rails is composed of a horizontal member and vertical walls formed on both sides of the horizontal member, and through grooves are formed by cutting on both sides of the vertical walls, and an opening / closing device for opening and closing the through grooves; and a plurality of connecting rails that diagonally connect adjacent right-angled driving rails among the first to fourth driving rails. and a connecting rail driving unit that moves each of the plurality of connecting rails to connect or disconnect from an adjacent driving rail.

Description

Technology Field

[0001] The present invention relates to an electric vehicle charging device that facilitates vertical and translational movement, and more specifically, to an electric vehicle charging device that facilitates vertical and translational movement that enables the electric vehicle charging device to move freely along a rail. Background Technology

[0002] In general, the electric vehicle market using batteries is growing rapidly for the purpose of drastically reducing fossil energy due to climate change caused by pollution from fossil fuels.

[0003] The electric vehicle (EV) charger market is growing rapidly, and the installation of EV chargers in building parking lots is also becoming more widespread. However, currently, installing EV chargers in existing shared parking lots presents difficulties, as it requires obtaining the consent of residents who mostly use regular vehicles. Furthermore, while installation is mandatory in new apartments, there are limitations due to restricted space and the number of chargers available.

[0004] You must charge your electric vehicle in a dedicated charging space and move the car quickly once charging is complete.

[0005] To overcome the limitations of conventional EV charger installations, a mobile EV charging system is being developed that allows parked EVs to be charged by installing movable chargers on the ceiling of parking lots. Since the mobile EV charger is equipped with multiple units and configured to move forward or backward along rails, it offers the advantage of eliminating the need for dedicated charging spaces (parking spots) by enabling more efficient movement to where EVs are parked for charging.

[0006] In the case of mobile electric vehicle charging systems, since multiple mobile chargers are implemented to move along a single guide rail, other chargers cannot pass over a charger that is currently charging a specific electric vehicle; therefore, as the number of mobile chargers increases, significant limitations on usage are inevitable.

[0007] Conventionally, multiple charging devices were equipped to move only left and right along a driving rail. Consequently, when electric vehicles were parked in double or triple rows in a parking lot, the charging devices could not be moved forward or backward or left or right, resulting in a problem of significantly reduced charging efficiency. Prior art literature

[0008] Korean Patent Application No. 10-2020-0015940 The problem to be solved

[0009] The present invention was devised to resolve the problems of the prior art, and aims to provide an electric vehicle charging device that facilitates vertical and translational movement, allowing the charging device of an electric vehicle parking lot to be moved in the forward and backward directions along a driving rail or in the left and right directions, and to be moved perpendicular to the driving rail, thereby shortening the travel distance, and enabling multiple chargers to be moved without interference. means of solving the problem

[0010] The objective of the present invention described above is to provide a straight-line guide rail formed between the first and fourth driving rails to guide linear travel, comprising: a support column installed vertically on the ground; a support frame installed horizontally on the support column; first to fourth driving rails formed on the support frame and arranged in a cross shape; a driving device coupled to the first to fourth driving rails and traveling; and a charger mounted on the driving device; a straight-line guide rail formed at the intersection of the first to fourth driving rails and connected between the driving rails to guide linear travel; an actuator for raising and lowering the straight-line guide rail; each of the first to fourth driving rails being composed of a horizontal member and vertical walls formed on both sides of the horizontal member, with through grooves formed by cutting into both sides of the vertical walls, and an opening / closing device for opening and closing the through grooves; and a plurality of connecting rails that diagonally connect adjacent right-angled driving rails among the first to fourth driving rails. This is achieved by an electric vehicle charging device that facilitates vertical and translational movement, comprising: a connecting rail driving unit that moves each of the plurality of connecting rails to connect with or disconnect from an adjacent driving rail.

[0011] The above-described switch is characterized by including a disc that blocks a through groove and a hydraulic cylinder unit connected to the disc and mounted on the outer side of the travel rail.

[0012] The above connecting rail is characterized by comprising a horizontal member, vertical walls formed on both sides of the horizontal member, inclined ends formed at both ends by being cut at an angle to correspond to the ends of the traveling rail, and an actuator connected to the lower part of the horizontal member to control the connection or separation of the connecting rail and the traveling rail by means of a pull-out or pull-out operation.

[0013] The above-described driving device is characterized by comprising a wheel that travels in contact with the upper surface of a driving rail, a driven gear connected to the wheel axle of the wheel, a body to which the wheel is axially coupled and which is positioned vertically downward from the driving rail, and a driving source formed by a driving gear mounted on the lower part of the body and connected to the driven gear by a chain.

[0014] It is characterized by including a wheel steering unit formed at the lower part of the body and connected to a charger, which controls the driving direction of the wheel, and a steering linkage unit that is linked to the wheel steering unit and causes the body to rotate in the same direction as the wheel.

[0015] The wheel steering device is characterized by comprising: a wheel housing having a ball coupled to the end of a wheel shaft and a ball holder coupled to a ball formed on the wheel; and a hydraulic cylinder hinge-coupled to the outer circumference of the body, wherein the cylinder rod of the hydraulic cylinder is hinge-coupled to the ball holder.

[0016] The steering linkage unit is characterized by comprising: a first rotating part composed of a shaft protruding from the lower part of the body and a rotating plate mounted on the shaft; and a second rotating part composed of a shaft protruding from the upper part of the charger and a housing mounted on the shaft having a fitting groove into which the rotating plate is fitted. Effects of the invention

[0017] According to the present invention, the charging device of an electric vehicle parking lot can be moved in a straight direction along a driving rail, forward, backward, left, and right, and can also be moved perpendicular to the driving rail, thereby shortening the travel distance and allowing multiple chargers to move without interference, thus improving safety and efficiency. Brief explanation of the drawing

[0018] FIG. 1 is a plan view of an electric vehicle charging device that facilitates vertical and translational movement according to the present invention. FIG. 2 is a perspective view of an electric vehicle charging device that facilitates vertical and translational movement according to the present invention. FIG. 3 is a perspective view showing the connection operation of a 'straight-line induction rail' in an electric vehicle charging device that facilitates vertical and translational movement according to the present invention. FIG. 4 is a perspective view showing the separation operation of a 'straight-line guide rail' in an electric vehicle charging device that facilitates vertical and translational movement according to the present invention. FIG. 5 is a perspective view showing a 'connecting rail' in an electric vehicle charging device that facilitates vertical and translational movement according to the present invention. FIG. 6 is a plan view showing the operation of a 'connecting rail' in an electric vehicle charging device that facilitates vertical and translational movement according to the present invention. FIG. 7 is a front view showing a 'driving mechanism' in an electric vehicle charging device that facilitates vertical and translational movement according to the present invention. FIG. 8 is a plan view showing a 'wheel steering device' in an electric vehicle charging device that facilitates vertical and translational movement according to the present invention. FIG. 9 is an enlarged view showing a 'steering linkage unit' in an electric vehicle charging device that facilitates vertical and translational movement according to the present invention. FIG. 10 is a plan view showing an example in which a driving device moves in the x-axis direction along a 'straight-line guide rail' in an electric vehicle charging device that facilitates vertical and translational movement according to the present invention. FIG. 11 is a plan view showing an example in which a driving device moves in the y-axis direction along a 'straight-line guide rail' in an electric vehicle charging device that facilitates vertical and translational movement according to the present invention. FIG. 12 is a plan view showing a curve driving in which a driving device travels along a 'fourth connecting rail' in an electric vehicle charging device that facilitates vertical and translational movement according to the present invention. FIG. 13 is a plan view showing a curve driving in which a driving device travels along a 'third connecting rail' in an electric vehicle charging device that facilitates vertical and translational movement according to the present invention. FIG. 14 is a plan view showing a curve driving in which a driving device travels along a 'first connecting rail' in an electric vehicle charging device that facilitates vertical and translational movement according to the present invention. FIG. 15 is a plan view showing a curve driving in which a driving device travels along a 'second connecting rail' in an electric vehicle charging device that facilitates vertical and translational movement according to the present invention. Specific details for implementing the invention

[0019] Preferred embodiments are described in detail below based on the attached drawings.

[0020] The embodiments described below are intended to provide a detailed description sufficient for a person skilled in the art to easily practice the invention, and do not imply that the technical scope and concept of the invention are limited thereby.

[0021] In addition, the size or shape of the components shown in the drawings may be exaggerated for clarity and convenience of explanation, and terms specifically defined in consideration of the configuration and operation of the present invention may vary according to the intent or convention of the user or operator, and it should be noted that the definitions of such terms must be based on the content throughout this specification.

[0022] Among the attached drawings, FIG. 1 is a plan view of an electric vehicle charging device that facilitates vertical and translational movement according to the present invention; FIG. 2 is a perspective view of an electric vehicle charging device that facilitates vertical and translational movement according to the present invention; FIG. 3 is a perspective view showing the connection operation of a 'straight-line guide rail' in an electric vehicle charging device that facilitates vertical and translational movement according to the present invention; FIG. 4 is a perspective view showing the separation operation of a 'straight-line guide rail' in an electric vehicle charging device that facilitates vertical and translational movement according to the present invention; FIG. 5 is a perspective view showing a 'connecting rail' in an electric vehicle charging device that facilitates vertical and translational movement according to the present invention; FIG. 6 is a plan view showing the operation of a 'connecting rail' in an electric vehicle charging device that facilitates vertical and translational movement according to the present invention; FIG. 7 is a front view showing a 'driving mechanism' in an electric vehicle charging device that facilitates vertical and translational movement according to the present invention; FIG. 8 is a 'wheel' in an electric vehicle charging device that facilitates vertical and translational movement according to the present invention. A plan view showing a 'steering mechanism'; FIG. 9 is an enlarged view showing a 'steering linkage unit' in an electric vehicle charging device that facilitates vertical and translational movement according to the present invention; FIG. 10 is a plan view showing an example of a driving device moving in the x-axis direction along a 'straight-guide rail' in an electric vehicle charging device that facilitates vertical and translational movement according to the present invention; FIG. 11 is a plan view showing an example of a driving device moving in the y-axis direction along a 'straight-guide rail' in an electric vehicle charging device that facilitates vertical and translational movement according to the present invention; FIG. 12 is a plan view showing curve driving in which a driving device travels along a 'fourth connecting rail' in an electric vehicle charging device that facilitates vertical and translational movement according to the present invention; FIG. 13 is a plan view showing curve driving in which a driving device travels along a 'third connecting rail' in an electric vehicle charging device that facilitates vertical and translational movement according to the present invention; FIG. 14 is a plan view showing a driving device traveling along a 'first connecting rail' in an electric vehicle charging device that facilitates vertical and translational movement according to the present invention Plan view showing a curve driving,FIG. 15 is a plan view showing a curve driving in which a driving device travels along a 'second connecting rail' in an electric vehicle charging device that facilitates vertical and translational movement according to the present invention.

[0023] An electric vehicle charging device that facilitates vertical and translational movement according to the present invention is,

[0024] A support (2) installed vertically on the ground, and

[0025] A support frame (3) installed horizontally on a support (2), and

[0026] First to fourth running rails (101, 102, 103, 104) formed on a support frame (3) and arranged in a cross shape, and

[0027] It includes a driving device (4) coupled to and driven on the first to fourth driving rails (101, 102, 103, 104), and a charger (5) mounted on the driving device (4).

[0028] A straight guide rail (6) connected between the driving rails (101, 102, 103, 104) to guide straight driving, formed at the intersection of the first to fourth driving rails (101, 102, 103, 104), and

[0029] A plurality of connecting rails (7) that diagonally connect adjacent right-angled running rails among the first to fourth running rails (101, 102, 103, 104), and

[0030] A driving direction setting unit (M) that selectively moves the plurality of connecting rails (7) to connect the connecting rails (7) with adjacent driving rails (101, 102, 103, 104) so ​​that the driving direction of the driving device (4) is changed to a perpendicular direction;

[0031] It is configured to include a connecting rail driving unit (8) that moves the above-mentioned straight guide rail (6) or a plurality of connecting rails (7) to be connected to or disconnected from adjacent driving rails (101, 102, 103, 104).

[0032] A number of support posts (2) are installed on the ground at regular intervals, and a support frame (3) is combined to connect the number of support posts (2) horizontally.

[0033] The first to fourth running rails (101, 102, 103, 104) are arranged orthogonally on the support frame (3) and positioned in a cross shape.

[0034] For convenience of explanation, the first and second running rails (101, 102) are arranged in the x-axis direction, and the third and fourth running rails (103, 104) are arranged in the y-axis direction.

[0035] Referring to FIG. 2, the first and second running rails (101, 102) arranged horizontally and the third and fourth running rails (103, 104) arranged vertically are separated.

[0036] The first and second running rails (101, 102) are spaced apart at a predetermined interval, and the third and fourth running rails (103, 104) are spaced apart at a predetermined interval, and a straight guide rail (6) is formed at the intersection formed by the spacing.

[0037] The straight guide rail (6) is formed to have a length corresponding to the spacing between the two running rails (101, 102, 103, 104) and is connected to an actuator (64) to operate up and down.

[0038] That is, the straight guide rail (6) can be arranged in the x-x' axis direction to connect the first and second driving rails (101, 102).

[0039] Alternatively, the straight guide rail (6) is arranged in the y-y' axis direction to connect the third and fourth driving rails (103, 104).

[0040] The x-axis direction straight guide rail and the y-axis direction straight guide rail are formed in a cross shape and include an actuator (64) installed vertically at the bottom of the intersection point.

[0041] Accordingly, the straight guide rail (6) in the x-axis direction and the straight guide rail (6) in the y-axis direction are raised or lowered by the lifting drive of the actuator (64), and when raised, the driving device (4) can travel in a straight line along the first to fourth driving rails (101, 102, 103, 104) in the x-axis direction or the y-axis direction.

[0042] Meanwhile, referring to FIG. 2, the connecting rail (7) is configured to connect adjacent right-angled running rails among the first to fourth running rails (101, 102, 103, 104) diagonally.

[0043] A first connecting rail (7-1) that diagonally connects the second and third running rails (102, 103);

[0044] A second connecting rail (7-2) that diagonally connects the second and fourth running rails (102, 104);

[0045] A third connecting rail (7-3) that diagonally connects the fourth and first running rails (104,101);

[0046] It includes a fourth connecting rail (7-4) that diagonally connects the fourth and third running rails (104, 103).

[0047] Each of the above first to fourth running rails (101, 102, 103, 104)

[0048] It is composed of a horizontal member and vertical walls formed on both sides of the horizontal member, and

[0049] Through grooves (120) are formed by cutting into both sides of the vertical wall.

[0050] The driving device (4) moves through the through groove (120) of the driving rail (101, 102, 103, 104) so ​​that it can pass through the driving rail (101, 102, 103, 104) and the connecting rail (7) without obstruction.

[0051] A switch (140) for opening and closing the through groove (120) of the above-mentioned travel rail (101, 102, 103, 104) may be included.

[0052] That is, before the connecting rail (7) is connected to the driving rail (101, 102, 103, 104), the operation of opening the opening / closing switch (140) to open the through groove (120) is performed first.

[0053] The switch (140) includes a disk (142) that blocks a through groove and a hydraulic cylinder unit (144) connected to the disk (142) and mounted on the outside of a travel rail (101, 102, 103, 104), the cylinder rod of the hydraulic cylinder unit (144) is connected to the disk (142), and the on / off operation of the hydraulic cylinder unit (144) is controlled by a control unit.

[0054] Each connecting rail (7)

[0055] A horizontal member and vertical walls are formed on both sides of the horizontal member, and

[0056] At both ends, inclined ends (72) are formed by cutting at an angle to correspond to the ends of the running rails (101, 102, 103, 104).

[0057] A through groove (120) is formed by cutting into the vertical wall of the running rail (101, 102, 103, 104).

[0058] The driving device (4) moves through the through groove (120) so that it can pass through the driving rails (101, 102, 103, 104) and the connecting rail (7) without obstruction.

[0059] A connecting rail drive unit (8) is mounted on the side of the connecting rail (7).

[0060] The connecting rail drive unit (8) may be a hydraulic cylinder having a cylinder rod connected to a vertical wall, and the hydraulic cylinder is mounted horizontally and when the cylinder rod is pulled out, the connecting rail (7) is connected in close contact with the ends of the two running rails (101, 102, 103, 104) arranged in a 90° direction.

[0061] Meanwhile, the connecting rail (7) is moved by the operation of the cylinder rod of the hydraulic cylinder being retracted, separating it from the two driving rails (101, 102, 103, 104), thereby blocking the movement of the driving device (4).

[0062] The above driving device (4)

[0063] A wheel (42) that travels in contact with the upper surface of the driving rail (101, 102, 103, 104), and

[0064] A driven gear (43) connected to the wheel shaft of the above wheel (42), and

[0065] A body (44) which is vertically positioned downward from the driving rail (101, 102, 103, 104) and to which the above wheel (42) is axially coupled, and

[0066] It includes a driving source (45) that is mounted on the lower part of the body (44) and has a driving gear (452) formed therein, which is connected to a driven gear (43) and a chain (451).

[0067] The driving source (45) can be a motor.

[0068] Therefore, when the motor is turned on, rotational force is transmitted to the driving gear (452), chain (451), and driven gear (43), causing the wheel (42) to rotate, and the wheel (42) travels on the upper surface of the horizontal member of the driving rail (101, 102, 103, 104).

[0069] Meanwhile, it includes a wheel steering unit (92) formed at the lower part of the body (44) and connected to a charger (5) to control the driving direction of the wheel (42), and a steering linkage unit (94) linked to the wheel steering unit (92) to cause the body (44) to rotate in the same direction as the wheel (42).

[0070] Referring to FIG. 8, the wheel steering device (92)

[0071] A wheel housing (923) having a ball (921) coupled to the end of the wheel shaft (43) and a ball holder (922) coupled to the ball (921) formed on the wheel (42);

[0072] It is composed of a hydraulic cylinder (924) hinged to the outer surface of the body (44), and the cylinder rod (9241) of the hydraulic cylinder (924) is hinged to a ball holder (922).

[0073] The hydraulic cylinder (924) is linked to a control unit (not shown), and the retraction or extension operation of the cylinder rod is controlled according to the signal of the control unit, so that the wheel (42) can be adjusted to the left or right.

[0074] For example, a wheel (42) traveling on a first travel rail (101, 102, 103, 104) may be rotated ±15 to 20° to change direction to a fourth connecting rail (7) or a third connecting rail (7), and then travel along a third travel rail (101, 102, 103, 104) or a fourth travel rail (101, 102, 103, 104).

[0075] Of course, it goes without saying that the above rotation angle can be set arbitrarily.

[0076] Therefore, the driving machine traveling on the first driving rail (101, 102, 103, 104) can be turned 90° and moved to the third driving rail (101, 102, 103, 104) or to the fourth driving rail (101, 102, 103, 104).

[0077] In the past, since the vehicle had to travel only in the forward and backward directions via the driving rails (101, 102, 103, 104) and the straight guide rail (6), it could not change direction by 90°, so it took a long time to set the course. However, the disclosed embodiment can directly change direction by 90°, so the travel time can be shortened.

[0078] As shown in FIG. 9, the steering linkage unit (94)

[0079] A first rotating part (95) composed of a shaft (951) protruding from the lower part of the body (44) and a rotating plate (952) mounted on the shaft (951);

[0080] It is configured to include a second rotating part (96) comprising a shaft (961) protruding from the upper part of the charger (5) and a housing (962) having a fitting groove (9620) mounted on the shaft (961) into which the rotating plate (952) is fitted.

[0081] In the housing (962) of the second rotating part (96), a bearing (9621) is installed in the fitting groove (9620) to which the rotating plate (952) is coupled, so that the rotating plate (952) can be freely rotated by the bearing (9621), and thus the shaft (951) to which the rotating plate (952) is connected and the body (44) can be freely rotated.

[0082] When the wheel (42) is rotated at a predetermined angle by the drive of the wheel steering device (92) and travels along the driving rail (101, 102, 103, 104) and the connecting rail (7), the body (44) can be rotated through the first rotating part (95) and the second rotating part (96), so that the body (44) can be idling rotated at a stable angle, especially during the process of traveling along the diagonal connecting rail (7).

[0083] The operation of the present invention is described below.

[0084] [Straight Driving]

[0085] As shown in FIG. 10, a straight guide rail (6) can be raised between the first driving rail (101, 102, 103, 104) and the second driving rail (101, 102, 103, 104) to connect the cut sections.

[0086] Afterward, when the driving source (45) of the driving device (4) is turned on, the wheel (42) travels along the first driving rail (101, 102, 103, 104) and moves to the second driving rail (101, 102, 103, 104) via the x-axis direction straight guide rail (6), and can move in the x-axis direction.

[0087] As shown in FIG. 11, when the driving source (45) of the driving device (4) is turned on, the wheel (42) travels along the third driving rail (101, 102, 103, 104), passes through the x-axis direction straight guide rail (6), and moves to the fourth driving rail (101, 102, 103, 104) and can move in the y-axis direction.

[0088] [Curve Driving]

[0089] As shown in FIG. 12, a driving machine (4) traveling along the first driving rail (101, 102, 103, 104) can be moved by turning on the fourth connecting rail (7) to connect the first driving rail (101, 102, 103, 104) and the third driving rail (101, 102, 103, 104), and the wheel (42) of the driving machine (4) can be rotated in an appropriate direction to travel along the fourth connecting rail (7) and proceed to the third driving rail (101, 102, 103, 104), thereby allowing it to be moved by switching from the x-axis direction to the y-axis direction.

[0090] As shown in FIG. 13, a driving machine (4) traveling along the first driving rail (101, 102, 103, 104) can be moved by turning on the third connecting rail (7) to connect the first driving rail (101, 102, 103, 104) and the fourth driving rail (101, 102, 103, 104), and the wheel (42) of the driving machine (4) can be rotated in an appropriate direction so as to travel along the third connecting rail (7) and proceed to the fourth driving rail (101, 102, 103, 104), thereby allowing it to be moved by switching from the x-axis direction to the y'-axis direction.

[0091] As shown in FIG. 14, a driving machine (4) traveling along the second driving rail (101, 102, 103, 104) can be moved by rotating the wheel (42) of the driving machine (4) in an appropriate direction while the first connecting rail (7) is turned on to connect the second driving rail (101, 102, 103, 104) and the third driving rail (101, 102, 103, 104), thereby moving along the first connecting rail (7) and moving to the third driving rail (101, 102, 103, 104), so that it can be moved by switching from the x-axis direction to the y-axis direction.

[0092] As shown in FIG. 15, a driving machine (4) traveling along the second driving rail (101, 102, 103, 104) can be moved by turning on the second connecting rail (7) to connect the second driving rail (101, 102, 103, 104) and the fourth driving rail (101, 102, 103, 104), and the wheel (42) of the driving machine (4) can be rotated in an appropriate direction so as to travel along the second connecting rail (7) and proceed to the fourth driving rail (101, 102, 103, 104), thereby allowing it to be moved by switching from the x-axis direction to the y'-axis direction.

[0093] Although described in relation to preferred embodiments, those skilled in the art will readily recognize that various modifications and variations are possible without departing from the essence and scope of the invention, and it is obvious that all such changes and modifications fall within the scope of the appended claims. Explanation of the symbols

[0094] 2 : Supporter 3 : Support Frame 4 : Driving Log 5 : Charger 6 : Straight guide rail 7 : Connecting rail 7-1 : 1st connecting rail 7-2 : 2nd connecting rail 7-3 : 3rd connecting rail 7-4 : 4th connecting rail 8 : Connecting rail drive unit M : Driving direction setting unit 42 : Wheel 43 : Driven gear 44 : Body 45 : Driving element 72: Inclined section 92: Wheel steering 94: Steering linkage unit 95: First rotating unit 96 : 2nd rotating part 101 : 1st traveling rail 102 : 2nd running rail 103 : 3rd running rail 104 : 4th running rail

Claims

Claim 1 A support column installed vertically on the ground, a support frame installed horizontally on the support column, first to fourth driving rails formed on the support frame and arranged in a cross shape, a driving device coupled to and driven by the first to fourth driving rails, and a charger mounted on the driving device; a straight-line guide rail formed at the intersection of the first to fourth driving rails and connected between the driving rails to guide straight-line driving; an actuator for raising and lowering the straight-line guide rail; each of the first to fourth driving rails is composed of a horizontal member and vertical walls formed on both sides of the horizontal member, and through grooves are formed by cutting on both sides of the vertical walls, and an opening / closing device for opening and closing the through grooves; and a plurality of connecting rails that diagonally connect adjacent right-angled driving rails among the first to fourth driving rails. An electric vehicle charging device that facilitates vertical and translational movement, characterized by including: a connecting rail driving unit that moves each of the plurality of connecting rails to connect with or disconnect from an adjacent driving rail. Claim 2 An electric vehicle charging device that facilitates vertical and translational movement, characterized in that, in claim 1, the opening and closing device comprises a disc that blocks a through groove and a hydraulic cylinder unit connected to the disc and mounted on the outer side of the driving rail, and the connecting rail comprises a horizontal member, vertical walls formed on both sides of the horizontal member, inclined ends formed at both ends that are cut at an angle to correspond to the ends of the driving rail, and an actuator connected to the lower part of the horizontal member to control the connection or separation of the connecting rail and the driving rail by pulling out or pulling in operation. Claim 3 An electric vehicle charging device that facilitates vertical and translational movement, characterized in that, in claim 1, the driving device comprises a wheel that travels in contact with the upper surface of a driving rail, a driven gear connected to the wheel shaft of the wheel, a body to which the wheel is axially coupled and which is arranged vertically downward from the driving rail, and a driving source formed by a driving gear mounted on the lower part of the body and connected to the driven gear by a chain. Claim 4 An electric vehicle charging device that facilitates vertical and translational movement, characterized in that, in claim 3, it includes a wheel steering unit formed at the lower part of the body and connected to a charger, which controls the driving direction of the wheel, and a steering linkage unit that is linked to the wheel steering unit and causes the body to rotate in the same direction as the wheel. Claim 5 In claim 4, the wheel steering unit comprises: a wheel housing having a ball coupled to the end of a wheel shaft and a ball holder coupled to the ball formed on the wheel; a hydraulic cylinder hinge-coupled to the outer circumference of the body, wherein the cylinder rod of the hydraulic cylinder is hinge-coupled to the ball holder; and the steering linkage unit comprises: a first rotating part composed of a shaft protruding from the lower part of the body and a rotating plate mounted on the shaft; and a second rotating part composed of a shaft protruding from the upper part of the charger and a housing mounted on the shaft having a fitting groove into which the rotating plate is fitted. This characterizes an electric vehicle charging device that facilitates vertical and translational movement.

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