KR20210094968A - Wireless charging apparatus for car - Google Patents

Abstract

Provided is a wireless charging device for a vehicle, where wireless charging positions are aligned by considering an arrangement state of a vehicle parked in a charging station. According to one aspect of the present invention, the wireless charging device for a vehicle, performing wireless charging with respect to a reception unit installed in the vehicle, comprises: a base unit installed on a floor of the charging station where the vehicle is parked; a transmission unit installed in the base unit to form a magnetic field in the reception unit through the magnetic field formed by supplied current; and a first control unit installed in the base unit to adjust a distance (r) and a direction (Θ) on a plane of the transmission unit with respect to the center of the base unit.

Description

Wireless charging device for vehicle {WIRELESS CHARGING APPARATUS FOR CAR}

The present invention relates to a wireless charging device for a vehicle, and more particularly, to a wireless charging device for a vehicle in which wireless charging positions are arranged in consideration of the arrangement state of a vehicle parked at a charging station.

Today, electric vehicles are attracting attention as a new means of transportation, and electric energy is an eco-friendly energy source that can replace the existing fossil fuels that cause environmental pollution. doesn't happen Accordingly, the electric vehicle is expected to play a greater role as an eco-friendly transportation means.

Various charging methods are used to charge the battery of an electric vehicle. The method of charging by directly connecting the cable of the charger installed in the charging station to the vehicle (plug-in method) and electromagnetic induction generated by the primary and secondary coils A non-contact charging method (wireless charging method) using development can be exemplified.

Among them, the plug-in method has the inconvenience of having to insert and remove the plug every time it is charged. In particular, in the case of a charger installed outdoors, it has a much more inconvenient disadvantage depending on snow, rain, wind, etc. These shortcomings may become a major obstacle to the spread of electric vehicles.

In order to overcome this problem, a wireless charging method that has been recently attempted uses magnetic induction to the current collecting coil of an electric vehicle from a power feeding coil of a power feeding unit buried in a charging station to wirelessly supply power and charge a battery.

However, in the case of such a wireless charging method, if the power supply coil and the current collecting coil are too far apart or the opposite angles are too far apart, the charging efficiency through magnetic induction may be reduced.

Therefore, in order to improve charging efficiency, there is a restriction that the current collecting coil of the electric vehicle should always be disposed at a certain distance and at an angle with respect to the power feeding coil of the power feeding unit buried in the charging station.

In relation to the wireless charging device for a vehicle as described above, Korean Patent No. 10-1627798 (hereinafter referred to as 'prior literature') discloses a wireless charging electric vehicle and a wireless charging method.

Specifically, a current collecting unit having a plurality of current collecting modules receiving power from the power feeding unit, a driving unit for raising or lowering the current collecting unit with respect to the ground depending on whether the vehicle enters the charging area and the speed of the vehicle, and the power supply unit A control unit for controlling the plurality of current collection modules to be connected in series or parallel, or a combination of series or parallel, according to the magnitude of the voltage induced in the plurality of current collection modules, and the like are disclosed in the prior literature.

However, the wireless charging method of the prior document discloses only a configuration in which the charging efficiency is improved by adjusting the height of the current collector installed in the vehicle with respect to the ground. It does not explicitly disclose a configuration that allows wireless charging to be performed smoothly by reflecting it.

As described above, even if the current collecting coil of the electric vehicle is displaced to a certain extent with respect to the power feeding coil of the power feeding unit buried in the charging station, there is a problem to still perform wireless charging smoothly. There is a limitation in that it cannot be properly solved.

An object of the present invention is to solve the above problems of a conventional wireless charging device for a vehicle.

Specifically, it is an object of the present invention to smoothly perform wireless charging even if a vehicle parked at a charging station is partially shifted from a wireless charging position.

In addition, an object of the present invention is to make it possible to more easily and accurately grasp the characteristics of a vehicle parked at a charging station and the need to adjust the wireless charging position.

In addition, an object of the present invention is to improve user convenience by automatically arranging wireless charging positions without a separate operation by the user.

The technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the following description. will be able

In order to achieve the above or other objects, the wireless charging device for a vehicle according to an aspect of the present invention is configured such that the arrangement state of the transmitter of the charging station floor relative to the receiver of the vehicle is adjusted. Specifically, it is configured to adjust the in-plane distance r and the direction θ of the transmitter with respect to the center of the base part through the first adjusting part.

In addition, in the wireless charging device for a vehicle according to an aspect of the present invention, the first adjusting unit may control the transmitting unit through the rotating plate, the inner rotating gear, the rotating gear, the rack gear, and the pinion gear.

In addition, in the wireless charging device for a vehicle according to an aspect of the present invention, the transmitter may form a magnetic field through the pad, the coil, and the cable to perform wireless charging for the receiver.

In addition, the wireless charging device for a vehicle according to an aspect of the present invention is configured to detect whether the wireless charging position is aligned. Specifically, it is configured to detect the type of vehicle and the arrangement state of the transmitter with respect to the receiver through the sensor unit.

In addition, in one aspect of the present invention, the wireless charging device for a vehicle is configured to automatically align the wireless charging position. Specifically, the control unit is configured to automatically control the transmitter according to the matter sensed by the sensor unit.

In addition, the wireless charging device for a vehicle according to an aspect of the present invention may separate the base part installed on the floor of the charging station from the floor of the charging station.

In addition, the wireless charging device for a vehicle according to an aspect of the present invention is configured to adjust the arrangement state of the transmitter of the charging station floor with respect to the receiver of the vehicle. Specifically, it is configured to adjust the position (x) in the first direction of the transmitter and the position (y) in the second direction orthogonal to the first direction on the plane of the base unit through the second adjusting unit.

In addition, in the wireless charging device for a vehicle according to an aspect of the present invention, the second adjusting unit may control the transmitter through the moving plate, the first rack gear, the first pinion gear, the second rack gear, and the second pinion gear.

The solutions to the technical problems to be achieved in the present invention are not limited to the solutions mentioned above, and other solutions not mentioned are clear to those of ordinary skill in the art to which the present invention belongs from the description below. will be able to be understood

The effect of the wireless charging device for a vehicle according to the present invention will be described as follows.

According to at least one of the embodiments of the present invention, since the distance (r) and the direction (θ) in a plane of the transmitter with respect to the center of the base part are adjusted through the first adjusting part, the vehicle parked at the charging station is a certain part in the wireless charging position. Even if there is a deviation, wireless charging can be performed smoothly.

In addition, according to at least one of the embodiments of the present invention, since the first adjusting unit adjusts the transmitting unit through a rotating plate, a rotating inner ring gear, a rotating gear, a rack gear, and a pinion gear, the distance (r) on a plane of the transmitting unit with respect to the center of the base unit ) and direction (θ) can be adjusted more easily and accurately.

In addition, according to at least one of the embodiments of the present invention, since the transmitter forms a magnetic field through the pad, the coil, and the cable to wirelessly charge the receiver, it is possible to stably form a magnetic field even when the transmitter moves.

In addition, according to at least one of the embodiments of the present invention, since the type of vehicle and the arrangement state of the transmitter with respect to the receiver are sensed through the sensor unit, it is easier and more accurate to adjust the characteristics of the vehicle parked at the charging station and the wireless charging position. can be comprehended.

In addition, according to at least one of the embodiments of the present invention, since the controller automatically controls the transmitter according to the matters sensed by the sensor unit, the wireless charging position is automatically arranged without a separate operation by the user for user convenience. can improve

In addition, according to at least one of the embodiments of the present invention, since the base part installed on the floor of the charging station can be separated from the floor of the charging station, replacement or repair of the wireless charging device for a vehicle can be made more easily.

In addition, according to at least one of the embodiments of the present invention, the position (x) of the transmitter in the first direction and the position (y) in the second direction orthogonal to the first direction are adjusted on the plane of the base unit through the second adjusting unit. , even if the vehicle parked at the charging station is partially shifted from the wireless charging position, wireless charging can be performed smoothly.

In addition, according to at least one of the embodiments of the present invention, since the second adjusting unit adjusts the transmitting unit through the moving plate, the first rack gear, the first pinion gear, the second rack gear and the second pinion gear, the first The position (x) in the direction and the position (y) in the second direction can be adjusted more easily and accurately.

Further scope of applicability of the present invention will become apparent from the following detailed description. However, it should be understood that the detailed description and specific embodiments such as preferred embodiments of the present invention are given by way of illustration only, since various changes and modifications within the spirit and scope of the present invention may be clearly understood by those skilled in the art.

1 and 2 are diagrams schematically illustrating a wireless charging device for a vehicle according to an embodiment of the present invention.
3 is a diagram illustrating an arrangement state of a vehicle with respect to a wireless charging device for a vehicle according to an embodiment of the present invention.
4 is a diagram illustrating in more detail a base unit, a transmitter, and a first adjuster in the wireless charging device for a vehicle according to an embodiment of the present invention.
5 is a diagram illustrating a state in which a transmitter is adjusted through a first adjusting unit in a wireless charging device for a vehicle according to an embodiment of the present invention.
6 is a plan view illustrating a base unit, a transmitter, and a first adjuster in the wireless charging device for a vehicle according to an embodiment of the present invention.
7 is a bottom view illustrating a base unit, a transmitter, and a first adjuster in the wireless charging device for a vehicle according to an embodiment of the present invention.
8 is an exploded perspective view illustrating a base unit, a transmitting unit, and a first adjusting unit in the wireless charging device for a vehicle according to an embodiment of the present invention.
9 is a diagram illustrating in more detail a base unit, a transmitter, and a second adjuster in a wireless charging device for a vehicle according to another embodiment of the present invention.
10 is a diagram illustrating a state in which a transmitter is adjusted through a second controller in a wireless charging device for a vehicle according to another embodiment of the present invention.
11 is a plan view illustrating a base unit, a transmitting unit, and a second adjusting unit in a wireless charging device for a vehicle according to another embodiment of the present invention.
12 is a bottom view illustrating a base unit, a transmitting unit, and a second adjusting unit in a wireless charging device for a vehicle according to another embodiment of the present invention.
13 is an exploded perspective view illustrating a base unit, a transmitting unit, and a second adjusting unit in a wireless charging device for a vehicle according to another embodiment of the present invention.

Hereinafter, the embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings, but the same or similar reference numerals are assigned to the same or similar components, and overlapping descriptions thereof will be omitted. The suffixes "module" and "part" for the components used in the following description are given or mixed in consideration of only the ease of writing the specification, and do not have a meaning or role distinct from each other by themselves. In addition, in describing the embodiments disclosed in the present specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in the present specification, the detailed description thereof will be omitted. In addition, the accompanying drawings are only for easy understanding of the embodiments disclosed in the present specification, and the technical spirit disclosed herein is not limited by the accompanying drawings, and all changes included in the spirit and scope of the present invention , should be understood to include equivalents or substitutes.

Terms including an ordinal number, such as first, second, etc., may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

When a component is referred to as being “connected” or “connected” to another component, it is understood that the other component may be directly connected or connected to the other component, but other components may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that no other element is present in the middle.

The singular expression includes the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as "comprises" or "have" are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

1 and 2 are diagrams schematically illustrating a wireless charging device for a vehicle according to an embodiment of the present invention. 3 is a diagram illustrating an arrangement state of a vehicle with respect to a wireless charging device for a vehicle according to an embodiment of the present invention.

1 to 3 , the wireless charging apparatus 1000 for a vehicle according to an embodiment of the present invention performs wireless charging on the receiver 11 installed in the vehicle 10 .

In this case, the receiving unit 11 may include a current collecting coil in which a voltage is induced by magnetic induction from a power feeding coil installed in a charging station as a part receiving power by an electromagnetic induction method. In addition, the receiver 11 may include a rectifier for rectifying the induced voltage to output a DC voltage, and a battery for storing the generated power.

Meanwhile, as shown in FIG. 3 , in order to charge the vehicle 10 through wireless charging, a wireless charging device 1000 for a vehicle (particularly, the base unit 100 ) may be installed on the floor 20 of the charging station. .

In this case, the parking position of the vehicle 10 may be different depending on the driving skill and tendency of the user, and an alignment problem with the wireless charging device 1000 for a vehicle installed on the floor 20 of the charging station may occur.

This is because the receiver 11 of the vehicle 10 and the wireless charging device 1000 for a vehicle need to be aligned within a predetermined distance and angle to each other in order to efficiently perform wireless charging.

To this end, it is not only very cumbersome for the user to modify the parking position of the vehicle 10 every time, but also the specifications may be different depending on the type of vehicle 10, so that the wireless charging position is always aligned. It can be said that it is actually difficult to do.

Accordingly, as shown in FIGS. 1 and 2 , in the wireless charging apparatus 1000 for a vehicle according to the present embodiment, even if the parking position of the vehicle 10 with respect to the charging station floor 20 is partially shifted, the vehicle 10 ) so that the arrangement of the wireless charging device 1000 for a vehicle is adjusted without movement, so that wireless charging can be performed smoothly.

4 is a diagram illustrating in more detail a base unit, a transmitter, and a first adjuster in the wireless charging device for a vehicle according to an embodiment of the present invention. 5 is a diagram illustrating a state in which a transmitter is adjusted through a first adjusting unit in a wireless charging device for a vehicle according to an embodiment of the present invention.

4 and 5 , the wireless charging apparatus 1000 for a vehicle according to an embodiment of the present invention includes a base unit 100 , a transmitter 200 , and a first adjuster 300 .

The base part 100 is a part installed on the floor 20 of the charging station where the vehicle 10 is parked, and forms the main exterior of the wireless charging device 1000 for a vehicle. That is, the base unit 100 can accommodate the transmitter 200 and the first adjustment unit 300 therein in a state in which the base unit 100 is installed on the floor 20 of the charging station.

In this case, the base part 100 may be configured to include the bottom plate 110 and the cover plate 120 so that the cover plate 120 is opened and closed. In addition, the base part 100 may be formed of a member and structure having a predetermined rigidity to prevent deformation and damage caused by a load or external force of the vehicle 10 .

The transmitter 200 is a part installed in the base part 100 to form a magnetic field in the receiver 11 through a magnetic field formed by the supplied current, and is a part where electromagnetic induction occurs together with the receiver 11 described above.

That is, when current is supplied to the transmitter 200 , a magnetic field may be formed in the transmitter 200 . In addition, a magnetic field may be induced in the receiver 11 disposed at a predetermined distance and angle from the transmitter 200 to induce a voltage in the receiver 11 .

The first adjusting unit 300 is a part installed in the base unit 100 to adjust the distance r and the direction θ in a plane of the transmitting unit 200 with respect to the center of the base unit 100, and the transmitting unit 200 ) can be moved to be aligned with the receiver 11 and the wireless charging position.

That is, as shown in FIG. 5 , the transmitting unit 200 may be rotated based on the center of the base unit 100 by the first adjusting unit 300 within the base unit 100 , and the base unit 100 may be rotated based on the center of the base unit 100 . ) can be moved away from or closer to the center of the

Accordingly, the transmitter 200 may be moved to virtually any position inside the base unit 100 . Accordingly, if the receiver 11 of the vehicle 10 is located in the upper space of the base part 100 , the transmitter 200 may be moved to be aligned with the receiver 11 and the wireless charging position.

As such, in the wireless charging device 1000 for a vehicle according to the present embodiment, the in-plane distance r and the direction θ of the transmitter 200 with respect to the center of the base unit 100 through the first adjustment unit 300 . ), even if the vehicle 10 parked at the charging station is partially shifted from the wireless charging position, wireless charging can be performed smoothly.

6 is a plan view illustrating a base unit, a transmitter, and a first adjuster in the wireless charging device for a vehicle according to an embodiment of the present invention. 7 is a bottom view illustrating a base unit, a transmitter, and a first adjuster in the wireless charging device for a vehicle according to an embodiment of the present invention. 8 is an exploded perspective view illustrating a base unit, a transmitting unit, and a first adjusting unit in the wireless charging device for a vehicle according to an embodiment of the present invention.

6 to 8 , in the wireless charging device 1000 for a vehicle according to an embodiment of the present invention, the first adjusting unit 300 includes a rotating plate 350 , a rotating inner ring gear 310 , and a rotating gear. 320 , a rack gear 330 and a pinion gear 340 may be included.

The rotating plate 350 is a part on which the transmitter 200 is mounted, and may be installed to be rotatable with respect to the center in the base part 100 . Accordingly, when the rotating plate 350 is rotated, the transmitter 200 mounted on the rotating plate 350 may also be rotated based on the center of the base unit 100 .

The inner rotating gear 310 is a ring-shaped gear installed on the inner wall surface of the base unit 100 , and may guide the rotation path of the rotating plate 350 rotated in the base unit 100 .

The rotary gear 320 is a gear meshed with the rotary inner ring gear 310 in a state of being installed on the rotary plate 350. When the rotary gear 320 rotates, the rotary gear 320 follows the inner rotary gear 310 meshed therewith. can be moved As a result, the rotation plate 350 on which the rotation gear 320 is installed can be rotated based on the center of the base part 100 .

Meanwhile, a separate motor 700 may be coupled to the rotation gear 320 . When the motor 700 is driven, a rotational force to the rotating gear 320 may be provided.

As described above, the transmission unit 200 may be rotated based on the center of the base unit 100 through the rotating plate 350 , the rotating inner ring gear 310 , and the rotating gear 320 .

The rack gear 330 is a gear installed to extend along the longitudinal direction of the rotating plate 350 , and may guide the movement path of the transmitter 200 moving along the longitudinal direction of the rotating plate 350 .

The pinion gear 340 is a gear that meshes with the rack gear 330 while installed in the transmitter 200. When the pinion gear 340 rotates, the pinion gear 340 moves along the rack gear 330 meshed therewith. can be As a result, the transmission unit 200 in which the pinion gear 340 is installed may be moved along the longitudinal direction of the rotating plate 350 .

Meanwhile, a separate motor 700 may be coupled to the pinion gear 340 . When the motor 700 is driven, a rotational force for rotation of the pinion gear 340 may be provided.

As described above, the transmitting unit 200 may be moved away from or closer to the center of the base unit 100 through the rotating plate 350 , the rack gear 330 , and the pinion gear 340 .

As such, in the wireless charging device 1000 for a vehicle according to the present embodiment, the first adjusting unit 300 includes the rotating plate 350, the rotating inner wheel gear 310, the rotating gear 320, the rack gear 330 and the pinion. Since the transmitter 200 is adjusted through the gear 340, the distance r and the direction θ of the transmitter 200 in a plane with respect to the center of the base part 100 can be adjusted more easily and accurately.

In the wireless charging apparatus 1000 for a vehicle according to an embodiment of the present invention, the transmitter 200 may include a pad 230 , a coil 210 , and a cable 220 .

The pad 230 is a part slidable along the rack gear 330 when the pinion gear 340 rotates, and may be moved on the rotating plate 350 with the coil 210 mounted thereon.

The coil 210 is a part installed on the pad 230 , and serves as a power supply coil to form a magnetic field by the supplied current. Since the coil 210 is mounted on the pad 230 as described above, a magnetic field may be stably formed even when the pad 230 is moved.

The cable 220 is a portion installed on the rotating plate 350 to supply current to the coil 210 , and has a plate structure or a flexible structure to stably supply current to the coil 210 even when the pad 230 moves. can be done

As such, in the wireless charging apparatus 1000 for a vehicle according to the present embodiment, the transmitter 200 forms a magnetic field through the pad 230 , the coil 210 and the cable 220 to wirelessly charge the receiver 11 . Therefore, it is possible to stably form a magnetic field even while the transmitter 200 flows.

As shown in FIGS. 1 and 2 , the wireless charging device 1000 for a vehicle according to an embodiment of the present invention detects the type of the vehicle 10 and the arrangement state of the transmitter 200 with respect to the receiver 11 . It may further include a sensor unit 500 .

For example, the sensor unit 500 may include a Bluetooth and/or Lidar sensor. Accordingly, the sensor unit 500 may detect information on the vehicle 10 parked on the charging station floor 20 through Bluetooth. In addition, the sensor unit 500 may detect the position of the wheels of the vehicle 10 and the position of the receiver 11 through the lidar sensor to determine the arrangement state with the transmitter 200 .

Also, the sensor unit 500 may include a low-frequency antenna. Accordingly, the sensor unit 500 may detect the distance between the wireless charging apparatus 1000 for a vehicle and the vehicle 10 and the degree of distortion through the low-frequency antenna.

As such, the wireless charging device 1000 for a vehicle according to the present embodiment detects the type of the vehicle 10 and the arrangement state of the transmitter 200 with respect to the receiver 11 through the sensor unit 500, so The characteristics of the parked vehicle 10 and the need to adjust the wireless charging position can be more easily and accurately grasped.

Here, in the wireless charging device 1000 for a vehicle according to an embodiment of the present invention, the distance (r) on a plane of the transmitter 200 with respect to the center of the base unit 100 according to the matter detected by the sensor unit 500 . It may further include a control unit 600 for controlling the direction (θ).

That is, when it is detected that alignment of the wireless charging position is required through the sensing process as described above, the position of the transmitter 200 can be automatically adjusted through the control unit 600 even without a separate user operation.

For example, when the vehicle 10 is parked on the charging station floor 20 and it is determined that charging is necessary, the controller 600 may operate the wireless charging device 1000 for a vehicle.

And, the type of the vehicle 10 and the position of the receiver 11 are sensed through the sensor unit 500, and if it is determined that the wireless charging position is aligned as a result of the detection, it is possible to control to perform wireless charging immediately.

On the other hand, if it is determined that the wireless charging position is shifted as a result of the above detection, the control unit 600 may operate the first control unit 300 to adjust the position of the transmitter 200 . Through this, it is possible to control the wireless charging to be performed after the wireless charging position is aligned.

As described above, in the wireless charging device 1000 for a vehicle according to the present embodiment, since the control unit 600 automatically controls the transmission unit 200 according to the matters detected by the sensor unit 500, a separate operation by the user The alignment of the wireless charging position can be performed automatically without the need for user convenience.

In the wireless charging apparatus 1000 for a vehicle according to an embodiment of the present invention, the base part 100 may be installed to be detachably attached to the charging station floor 20 .

As described above, in order to achieve stable wireless charging, it may be preferable that the base part 100 having a predetermined rigidity is fixedly installed on the charging station floor 20 .

However, when the transmission unit 200 and the first adjustment unit 300 inside the base unit 100 are broken or damaged or the base unit 100 itself is damaged or damaged, there is no need to replace or repair it. there is.

In this case, if the base part 100 is not separated from the charging station floor 20, there may be a restriction that the charging station floor 20 is partially damaged and then the base part 100 is separated and replaced or reinstalled after repair. there is.

Therefore, by detachably installing the base part 100 with respect to the charging station floor 20, when there is a need for replacement or repair, the base part 100 can be separated to perform the operation more easily.

As described above, since the wireless charging device 1000 for a vehicle according to the present embodiment can separate the base part 100 installed on the charging station floor 20 from the charging station floor 20, replacement of the wireless charging device 1000 for a vehicle I can make repairs more easily.

9 is a diagram illustrating in more detail a base unit, a transmitter 200, and a second adjuster in a wireless charging device for a vehicle according to another embodiment of the present invention. 10 is a diagram illustrating a state in which the transmitter 200 is adjusted through the second adjusting unit in the wireless charging device for a vehicle according to another embodiment of the present invention.

9 and 10 , the wireless charging apparatus 1000 for a vehicle according to another embodiment of the present invention includes a base unit 100 , a transmitter 200 , and a second adjuster 400 .

Since the base unit 100 and the transmitter 200 are substantially the same as those described in the wireless charging device 1000 for a vehicle according to an embodiment of the present invention, detailed descriptions of overlapping contents will be omitted.

The second adjusting unit 400 adjusts the position (x) of the transmitter 200 in the first direction and the position (y) in the second direction orthogonal to the first direction on the plane of the base unit 100 to adjust the position (y) of the base unit ( 100), it is possible to move the transmitter 200 to be aligned with the receiver 11 and the wireless charging position.

That is, as shown in FIG. 10 , the transmitter 200 moves along the first direction and the second direction on the plane of the base unit 100 by the second adjusting unit 400 in the base unit 100 , respectively. can be

Accordingly, the transmitter 200 may be moved to virtually any position inside the base unit 100 . Accordingly, if the receiver 11 of the vehicle 10 is located in the upper space of the base part 100 , the transmitter 200 may be moved to be aligned with the receiver 11 and the wireless charging position.

As described above, the wireless charging apparatus 1000 for a vehicle according to the present embodiment includes the position (x) and the first position of the transmitter 200 in the first direction on the plane of the base unit 100 through the second adjustment unit 400 . Since the position y in the second direction orthogonal to the direction is adjusted, wireless charging can be performed smoothly even if the vehicle 10 parked at the charging station is partially shifted from the wireless charging position.

11 is a plan view illustrating a base unit, a transmitting unit, and a second adjusting unit in a wireless charging device for a vehicle according to another embodiment of the present invention. 12 is a bottom view illustrating a base unit, a transmitting unit, and a second adjusting unit in a wireless charging device for a vehicle according to another embodiment of the present invention. 13 is an exploded perspective view illustrating a base unit, a transmitting unit, and a second adjusting unit in a wireless charging device for a vehicle according to another embodiment of the present invention.

11 to 13 , in the wireless charging apparatus 1000 for a vehicle according to an embodiment of the present invention, the second adjusting unit 400 includes a moving plate 450 , a first rack gear 410 , It may include a first pinion gear 430 , a second rack gear 420 , and a second pinion gear 440 .

The moving plate 450 is formed to extend in the second direction and is a portion on which the transmitter 200 is mounted, and may be installed to be movable in the first direction in the base unit 100 . Accordingly, when the moving plate 450 is moved, the transmitter 200 mounted on the moving plate 450 may also be moved in the first direction.

The first rack gear 410 is a gear installed to extend in the first direction, and may guide a movement path of the moving plate 450 moving in the first direction in the base part 100 .

The first pinion gear 430 is a gear that meshes with the first rack gear 410 while installed on the moving plate 450, and the first rack gear 410 meshes with the first pinion gear 430 when the first pinion gear 430 rotates. Accordingly, the first pinion gear 430 may be moved. As a result, the moving plate 450 on which the first pinion gear 430 is installed may be moved in the base part 100 in the first direction.

Meanwhile, a separate motor 700 may be coupled to the first pinion gear 430 . When the motor 700 is driven, a rotational force to the first pinion gear 430 may be provided.

As described above, the transmitting unit 200 may be moved in the base unit 100 in the first direction through the moving plate 450 , the first rack gear 410 , and the first pinion gear 430 .

The second rack gear 420 is a gear installed to extend along the longitudinal direction of the moving plate 450 , and may guide the movement path of the transmitter 200 moving along the longitudinal direction of the moving plate 450 .

The second pinion gear 440 is a gear that meshes with the second rack gear 420 while being installed in the transmitter 200. When the second pinion gear 440 rotates, the second rack gear 420 meshed therewith is used. Accordingly, the second pinion gear 440 may be moved. As a result, the transmitter 200 in which the second pinion gear 440 is installed may be moved along the longitudinal direction of the moving plate 450 .

Meanwhile, a separate motor 700 may be coupled to the second pinion gear 440 . When the motor 700 is driven, a rotational force for rotation of the second pinion gear 440 may be provided.

As described above, the transmitting unit 200 may be moved in the base unit 100 in the second direction through the moving plate 450 , the second rack gear 420 , and the second pinion gear 440 .

As such, in the wireless charging device 1000 for a vehicle according to the present embodiment, the second adjusting unit 400 includes a moving plate 450 , a first rack gear 410 , a first pinion gear 430 , and a second rack. Since the transmission unit 200 is adjusted through the gear 420 and the second pinion gear 440, the position (x) in the first direction and the position (y) in the second direction of the transmission unit 200 can be adjusted more easily and accurately than the position (y) in the second direction. there is.

On the other hand, since the main components described in the wireless charging device for a vehicle according to another embodiment of the present invention are the same as or similar to the main components described in the wireless charging device for a vehicle according to an embodiment of the present invention except for the above-described features, , a detailed description of the overlapping content will be omitted.

In the foregoing, specific embodiments of the present invention have been described and shown, but it is common knowledge in the art that the present invention is not limited to the described embodiments, and that various modifications and variations can be made without departing from the spirit and scope of the present invention. It is self-evident to those who have Accordingly, such modifications or variations should not be individually understood from the technical spirit or point of view of the present invention, and modified embodiments should be said to belong to the claims of the present invention.

10: vehicle 11: receiver
20: charging station floor 100: base part
110: bottom plate 120: cover plate
200: transmitter 210: coil
220: cable 230: pad
300: first adjustment unit 310: rotating inner ring gear
320: rotation gear 330: rack gear
340: pinion gear 350: rotating plate
400: second adjustment unit 410: first rack gear
420: second rack gear 430: first pinion gear
440: second pinion gear 450: moving plate
500: sensor unit 600: control unit
700: motor 1000: wireless charging device for a vehicle

Claims (12)

In the wireless charging device for a vehicle for performing wireless charging with respect to a receiver installed in the vehicle,
a base part installed on the floor of the charging station where the vehicle is parked;
a transmitter installed in the base to form a magnetic field in the receiver through a magnetic field formed by the supplied current; and
a first adjusting unit installed in the base unit to adjust a distance (r) and a direction (θ) in a plane of the transmitter with respect to the center of the base unit;
A wireless charging device for a vehicle comprising a. According to claim 1,
The first adjustment unit
a rotating plate on which the transmitter is mounted;
A ring-shaped rotating inner ring gear installed on the inner wall surface of the base part;
a rotating gear engaged with the rotating inner ring gear in a state installed on the rotating plate;
a rack gear installed to extend along the longitudinal direction of the rotating plate; and
A wireless charging device for a vehicle, including a pinion gear meshed with the rack gear in a state installed in the transmitter. 3. The method of claim 2,
the transmitter
a pad capable of sliding along the rack gear when the pinion gear rotates;
a coil installed on the pad; and
A wireless charging device for a vehicle, including a cable installed on the rotating plate to supply current to the coil. 4. The method according to any one of claims 1 to 3,
a sensor unit for detecting a type of the vehicle and an arrangement state of the transmitter with respect to the receiver;
A wireless charging device for a vehicle further comprising a. 5. The method of claim 4,
a control unit for controlling a distance (r) and a direction (θ) on a plane of the transmitting unit with respect to the center of the base unit according to the matters detected by the sensor unit;
A wireless charging device for a vehicle further comprising a. 4. The method according to any one of claims 1 to 3,
The base portion is installed to be detachably attached to the floor of the charging station, a wireless charging device for a vehicle. In the wireless charging device for a vehicle for performing wireless charging with respect to a receiver installed in the vehicle,
a base part installed on the floor of the charging station where the vehicle is parked;
a transmitter installed in the base to form a magnetic field in the receiver through a magnetic field formed by the supplied current; and
a second adjusting unit installed in the base unit to adjust a position (x) in a first direction and a position (y) in a second direction orthogonal to the first direction on the plane of the base unit;
A wireless charging device for a vehicle comprising a. 8. The method of claim 7,
The second adjustment unit
a moving plate formed to extend in the second direction and on which the transmitter is mounted;
a first rack gear installed to extend along the first direction;
a first pinion gear engaged with the first rack gear while installed on the moving plate;
a second rack gear installed to extend along the longitudinal direction of the moving plate; and
and a second pinion gear meshed with the second rack gear while installed in the transmitter. 9. The method of claim 8,
the transmitter
a pad capable of sliding along the second rack gear when the second pinion gear rotates;
a coil installed on the pad; and
A wireless charging device for a vehicle, including a cable installed on the moving plate to supply current to the coil. 10. The method according to any one of claims 7 to 9,
a sensor unit for detecting a type of the vehicle and an arrangement state of the transmitter with respect to the receiver;
A wireless charging device for a vehicle further comprising a. 11. The method of claim 10,
a control unit for controlling a position (x) in the first direction and a position (y) in the second direction of the transmitter according to the matters sensed by the sensor unit;
A wireless charging device for a vehicle further comprising a. 10. The method according to any one of claims 7 to 9,
The base portion is installed to be detachably attached to the floor of the charging station, a wireless charging device for a vehicle.

Images