JP2019024291A - Non-contact charging device for electric vehicle - Google Patents

Abstract

To provide a non-contact charging device for an electric vehicle capable of safely and efficiently performing charging in a non-contact manner while excluding foreign materials including small animals or the like.SOLUTION: A non-contact charging device for an electric vehicle comprises: a power transmission coil 20 that performs electric power supply in a non-contact manner to a power reception coil provided in an electric vehicle; a wall portion 30 that is provided between the electric vehicle and a ground surface on which the electric vehicle stops and that surrounds the power transmission coil 20; an open portion 40 through which an inside and an outside of the wall portion 30 are in communication with each other; a blower device 50 as exclusion means for excluding foreign materials including small animals or the like in the inside of the wall portion 30 toward the open portion 40; and a closing wall portion 60 as closing means for closing the open portion 40.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a contactless charging system that supplies power to a battery of a vehicle in a contactless manner.

  An electric vehicle such as an electric vehicle or a plug-in hybrid vehicle is equipped with a battery (secondary battery) capable of charging electric power from an external power source. As a method for supplying power for charging, there are a plug-in type power supply method in which a power supply port on the power supply side and a vehicle charging port are connected by a charging cable, and a non-contact type power supply method without using a power supply cable. Are known.

  As a conventional technique related to a non-contact power supply method, for example, there is a power supply system described in Patent Document 1. In such a non-contact power supply system, power from an external AC power supply is converted into high-frequency power by a high-frequency power driver and then supplied to the primary coil. The primary coil transmits high-frequency power to the secondary coil mounted on the electric vehicle by electromagnetic induction.

  The primary coil is disposed on the ground, and the secondary coil is disposed on the lower part of the vehicle body, and electric power is transmitted via an electromagnetic field. Due to such a configuration, if a foreign object including a person or a small animal is present near the primary coil or the secondary coil during the charging operation, the foreign object including the person or the small animal may be affected by the electromagnetic field. . In addition, the charging operation may be hindered or the time required for charging may be affected depending on the foreign material.

  Therefore, a measure is taken to provide a wall-shaped separator surrounding the primary coil and the secondary coil between the vehicle body and the ground. The separator is normally buried underground. When the electric vehicle stops at a predetermined place, the separating material appears from the ground, and becomes a wall surrounding the coil. And since the charging operation is performed when the separating material functions as a wall, foreign objects including small animals are prevented from entering the vicinity of the primary coil and the secondary coil.

  However, when foreign material including small animals is present near the primary coil and the isolation material appears on the ground and becomes a wall, the foreign material including small animals is confined in the area surrounded by the isolation material. As such, there is a possibility that trouble may occur during charging.

JP 2010-226946 A

  The present invention has been made in view of such circumstances, and provides a non-contact charging device for an electric vehicle that can perform non-contact charging more safely and efficiently by removing foreign matters including small animals. For the purpose.

  According to a first aspect of the present invention for solving the above-described problem, a power transmission coil that supplies power to a power receiving coil provided in an electric vehicle in a non-contact manner, and the ground plane on which the electric vehicle and the electric vehicle stop. A wall portion that surrounds the power transmission coil, an open portion that communicates the inside and the outside of the wall portion, and an exclusion means that excludes foreign matters including small animals inside the wall portion toward the open portion. And a closing means for closing the opening.

  In the first aspect, even if a foreign object including a small animal or the like exists in the vicinity of the power transmission coil before charging, the periphery of the power transmission coil is surrounded by a wall portion after the foreign object including the small animal or the like is excluded by the exclusion unit. . Therefore, it is possible to avoid that a foreign object including a small animal is trapped in the internal space formed by the wall portion, and it is possible to safely perform non-contact charging from the power transmission coil to the power reception coil.

  According to a second aspect of the present invention, in the non-contact charging device for an electric vehicle according to the first aspect, the blow-out device that blows air from the inside surrounded by the wall portion toward the opening portion. There is a non-contact charging device for an electric vehicle characterized in that.

  In the second aspect, it is possible to exclude foreign matters including small animals by using a blower as the exclusion means.

  According to a third aspect of the present invention, in the contactless charging apparatus for an electric vehicle according to the first or second aspect, the wall portion is movable upward from the ground surface from a state of being stored underground. A closing wall portion that is a part of the wall portion is accommodated in the basement, and the opening portion is formed by moving a portion other than the closing wall portion above the grounding surface, and the closing means Is the closed wall portion that moves upward from the grounding surface to close the open portion, and is in a non-contact charging device for an electric vehicle.

  In the third aspect, when the non-contact charging is not performed, the wall portion can be stored underground. Moreover, the opening portion can be closed by the closing wall portion stored in the basement.

  According to a fourth aspect of the present invention, in the non-contact charging device for an electric vehicle according to the first aspect, the closing means is horizontally oriented from the inside surrounded by the wall portion to a position for closing the opening portion. The non-contact charging device for an electric vehicle is characterized in that the closing wall portion also serves as the exclusion means.

  In the fourth aspect, foreign substances including small animals can be directly removed to the outside by the closed wall portion that moves in the horizontal direction.

  According to a fifth aspect of the present invention, in the contactless charging apparatus for an electric vehicle according to any one of the first to fourth aspects, the closing means includes a foreign object including a small animal inside the wall portion. When it is not detected, the open portion is closed, and the non-contact charging apparatus for an electric vehicle is provided.

  In the fifth aspect, non-contact charging can be more reliably performed in a state where there is no foreign object including a small animal in the vicinity of the power transmission coil.

  According to a sixth aspect of the present invention, in the contactless charging apparatus for an electric vehicle according to any one of the first to fifth aspects, the exclusion means includes a foreign object including a small animal inside the wall portion. When detected, a non-contact charging apparatus for an electric vehicle is characterized in that foreign objects including small animals are excluded.

  In the sixth aspect, it is possible to more reliably perform non-contact charging in a state where there is no foreign object including a small animal in the vicinity of the power transmission coil.

  ADVANTAGE OF THE INVENTION According to this invention, the non-contact charging device for electric vehicles which can exclude the foreign material containing a small animal etc. and can charge more safely, efficiently, and non-contact is provided.

It is a side view of the charging device which concerns on Embodiment 1. FIG. 1 is a perspective view of a charging device according to Embodiment 1. FIG. It is a front view of the air blower in the accommodation state. It is a front view of the air blower in use condition. It is a perspective view of the charging device which shows a use condition. 6 is a perspective view of a charging device according to Embodiment 2. FIG. 6 is a front view of a side wall portion according to Embodiment 2. FIG. It is the sectional view on the AA line of FIG. 10 is a plan view showing an operation of a closing wall portion according to Embodiment 2. FIG.

  Hereinafter, modes for carrying out the present invention will be described. In addition, description of embodiment is an illustration and this invention is not limited to the following description.

<Embodiment 1>
FIG. 1 is a side view of a non-contact charging device (hereinafter simply referred to as a charging device) for an electric vehicle, and FIG. 2 is a perspective view of the charging device.

  The electric vehicle 1 is a plug-in hybrid vehicle or an electric vehicle. The electric vehicle 1 includes a traveling motor 2 and a DC / AC inverter 3. A driving battery 4 is connected to the inverter 3, and the traveling motor 2 is driven by the electric power of the driving battery 4. Yes. A charging circuit 6 is connected to the driving battery 4, and a power receiving coil 5 is connected to the charging circuit 6.

  The charging device 10 is, for example, a device that is provided in a parking facility such as a home, an apartment house, a coin parking, a commercial facility, a public facility, etc., and supplies electric power to the electric vehicle 1 in a contactless manner. Specifically, the charging device 10 includes a power transmission coil 20, a wall portion 30, an opening portion 40, a blower device 50 (see FIG. 3), and a closing wall portion 60.

  An external power source that is external to the electric vehicle 1 is connected to the power transmission coil 20 via a rectifier circuit, a high-frequency inverter, a capacitor, and the like (all not shown). That is, the charging device 10 functions as a charger for charging power from an external power source in a contactless manner.

  The power transmission coil 20 is installed or embedded in the parking space S defined in the parking facility, and is configured to generate an electromagnetic field by predetermined energization. The power transmission coil 20 transfers power in a non-contact manner with the power reception coil 5 provided in the electric vehicle 1 stopped in the parking space S.

  The wall portion 30 is a member that is provided between the electric vehicle 1 and the ground plane P on which the electric vehicle 1 stops and surrounds the power transmission coil 20. In other words, the wall 30 is erected so as to fill a space between the bottom of the electric vehicle 1 and the ground contact surface P. The wall portion 30 does not need to be in contact with the bottom of the electric vehicle 1 and may have a slight gap. This gap is set to such an extent that foreign matter including small animals cannot pass through.

  Moreover, the wall 30 surrounding the power transmission coil 20 means that the wall 30 is provided around the power transmission coil 20 in a plan view of the parking space S as viewed from above. The wall part 30 does not need to be provided continuously around the power transmission coil 20 and may be partially discontinuous.

  In this embodiment, the wall part 30 is comprised by the square frame shape by planar view. Specifically, the wall portion 30 includes a side wall portion 31, a blower portion 51, and a closed wall portion 60.

  The side wall part 31 consists of a member extended in the front-back direction (X direction) of the electric vehicle 1, and two side walls 31 are provided at a predetermined distance in the vehicle width direction (Y direction). The power transmission coil 20 is disposed between the two side wall portions 31.

  The air blower 51 is a member that constitutes a part of the air blower 50 to be described later, and is a member that includes a plurality of slits 52 that serve as air outlets. The air blowing part 51 also functions as a part of the wall part 30.

  The closing wall portion 60 is an example of a closing unit that closes an opening portion 40 described later. Further, the closing wall portion 60 is a member that constitutes a part of the wall portion 30 and is a member that is movable so as to close the opening portion 40.

  The side wall 31, the blower 51, and the closing wall 60 are all housed in a recess (not shown) opened in the grounding surface P of the parking space S, or are erected on the grounding surface P. It is possible to enter any of the used states (see FIGS. 1 and 2).

  In the housed state, the side wall part 31, the air blowing part 51, and the closing wall part 60 are all housed in the recesses, and the ground contact surface P of the parking space S is substantially flat. In the state of use, as shown in FIGS. 1 and 2, the side wall portion 31, the air blowing portion 51, and the closing wall portion 60 stand between the electric vehicle 1 and the ground plane P so as to surround the power transmission coil 20. Has been established. A region surrounded by the wall 30 in the use state is referred to as an internal space 90.

  The structure of the air blower 50 is demonstrated using FIG.3 and FIG.4. FIG. 3 is a front view of the blower in the housed state, and FIG. 4 is a front view of the blower in the used state.

  The parking space S (see FIG. 2) is provided with a recess 80 opened to the ground plane P. The recess 80 has an opening that can accommodate the blower 51. The air blower 50 is accommodated in such a recess 80.

  The air blower 50 is an example of an excluding unit that excludes foreign objects including small animals and the like existing in the internal space 90 (see FIG. 2) of the wall 30. Specifically, the blower 50 includes a blower 51, a blower 53, a duct 54, and an actuator 55. The blower 53 is a device that includes a motor and a blower fan (not shown). The blower 53 rotates the motor by electric power from the external power source, and rotates the blower fan by the rotational force of the motor, thereby feeding air to the duct 54.

  The blower 51 is formed in a hollow box shape, and air is pumped through the duct 54. The air fed to the blower 51 is discharged from the slit 52 to the internal space 90.

  The actuator 55 is a general actuator device, and is used for raising and lowering the air blowing part 51 attached to the tip.

  In the accommodated state shown in FIG. 3, the actuator 55 is shortened so that the air blowing part 51 is accommodated in the recess 80. On the other hand, in the use state shown in FIG. 4, the actuator 55 is extended so that the slit 52 of the blower 51 protrudes upward from the ground plane P.

  Although not particularly illustrated, the side wall 31 and the closed wall 60 are also moved up and down by the actuator in the same manner as the blower 51, so that they are housed in the recess 80 or are in a use state protruding from the recess 80. .

  The operation during charging of the charging device will be described with reference to FIG. FIG. 5 is a perspective view of the charging device showing a use state. In addition, illustration of the electric vehicle 1 is abbreviate | omitted in the same figure.

  The charging device 10 causes the side wall portion 31 and the air blowing portion 51 of the wall portion 30 to stand above the ground plane P. On the other hand, the closed wall 60 is left in a state of being accommodated in a recess provided on the ground.

  The side wall part 31 and the air blowing part 51 are preferably erected when detecting that the electric vehicle 1 has stopped in the parking space S. As a means for detecting that the electric vehicle 1 is stopped in the parking space S, a known image processing method can be exemplified. Specifically, when the electric vehicle 1 is recognized by capturing the parking space S with a camera or the like and applying an image processing method to the captured image, it is detected that the electric vehicle 1 has stopped in the parking space S. .

  In the state where the side wall 31 and the air blowing unit 51 are erected on the ground surface P and the closed wall 60 is accommodated in the basement, a part of the wall 30 is missing. A portion in which a part of the wall portion 30 is missing in this manner (a portion that connects the internal space 90 and the outside) is referred to as an open portion 40. On the other hand, in a state where the closed wall portion 60 is erected from the ground contact surface P, the open portion 40 is closed by the closed wall portion 60. That is, the lacking portion of the wall portion 30 disappears, and the wall portion 30 surrounds the power transmission coil 20.

  The opening 40 has a size larger than that of a foreign object including a small animal. Therefore, in this embodiment, although the part which lacked all the one sides of the frame-shaped wall part 30 is set as the open part 40, it is not limited to this. For example, it is good also considering the part which lacked a part of one side of the wall part 30 as an open part.

  Moreover, it is not necessary to form the opening part 40 by completely accommodating the closed wall part 60 in the basement like this embodiment. For example, a part of the closed wall portion 60 may be erected from the ground surface P. In this case, the gap between the closed wall portion 60 and the electric vehicle 1 becomes the open portion 40. Furthermore, a through hole provided in a part of the wall portion 30 may be the opening portion 40.

  In the state where the opening 40 is formed in this way, the charging device 10 causes the blower 50 to blow air from the internal space 90 to the opening 40. Here, it is assumed that a foreign object including a small animal exists in the vicinity of the power transmission coil 20. Since the blower 50 blows air to foreign objects including small animals and the like, foreign objects including small animals and the like can be expelled to the open portion 40 corresponding to the lee.

  There is no limitation in particular as a timing which starts the ventilation by the air blower 50. FIG. For example, the blowing may be started when a predetermined time has elapsed after the electric vehicle 1 stops in the parking space S and detects that the power transmission coil 20 and the power reception coil 5 face each other.

  In addition, a camera that captures the inside of the internal space 90 may be provided, and air blowing by the blower 50 may be performed when a foreign object including a small animal is detected in an image captured by the camera. Detection of foreign matter including small animals can be performed by a known image processing technique.

  Further, the strength of the air blow by the blower 50 is not particularly limited. For example, the foreign matter including small animals may be discharged to the outside by the air pressure, and foreign matters including relatively light small animals may be forcibly excluded. Alternatively, the air may be blown to the extent that the wind reaches the opening 40 from the slit 52. According to this, it can be expected that a small animal or the like spontaneously escapes to the opening 40 upon receiving the wind from the blower 50.

  Next, the charging apparatus 10 closes the opening part 40 by the closing wall part 60 after ventilation. Specifically, the closing wall 60 is pushed upward by an actuator (not shown), and is erected on the ground contact surface P. Thereby, the wall part 30 is formed by the closing wall part 60 with the side wall part 31 and the ventilation part 51 which were standingly arranged by the grounding surface P previously (refer FIG. 2). Thereby, in the state which excluded the foreign material containing a small animal etc. from the vicinity of the power transmission coil 20, the circumference | surroundings of the power transmission coil 20 are enclosed by the wall part 30, and the approach of the foreign material containing a small animal etc. can be prevented.

  There is no particular limitation on the timing of closing the opening 40 by the closing wall 60. For example, the air blowing may be started when a predetermined time has elapsed since the air blowing device 50 was blown.

  In addition, a camera that captures the inside of the internal space 90 may be provided, and the opening 40 may be closed by the closing wall 60 when a foreign object including a small animal is not detected in an image captured by the camera. Detection of foreign matter including small animals can be performed by a known image processing technique.

  In the charging device 10 having the configuration described above, when the electric vehicle 1 stops in the parking space S and performs charging in a non-contact manner, the wall 30 where the opening 40 is formed surrounds the power transmission coil 20. And the foreign material containing the small animal etc. which exist in the vicinity of the power transmission coil 20 is expelled from the open part 40 outside by blowing with the air blower 50. And the open part 40 is closed with the closed wall part 60 in the state which excluded the foreign material containing a small animal etc. from the vicinity of the power transmission coil 20. FIG.

  According to such a charging device 10, even if a foreign object including a small animal or the like exists in the vicinity of the power transmission coil 20 before charging, the power transmission coil is configured to exclude the foreign object including the small animal or the like by blowing with the blower 50. 20 is surrounded by a wall 30. Therefore, it is possible to prevent foreign matter including small animals from being trapped in the internal space 90 formed by the wall portion 30, and it is possible to safely perform non-contact charging from the power transmission coil 20 to the power reception coil 5.

<Embodiment 2>
In Embodiment 1, although the charging device 10 using the air blower 50 was demonstrated as an example of an exclusion means, an exclusion means is not limited to the air blower 50. FIG. For example, the exclusion means may be configured to move a part of the wall portion 30 in the horizontal direction and forcibly exclude foreign matters including small animals by the part.

  6 is a perspective view of the charging device according to the present embodiment, FIG. 7 is a front view of the side wall, FIG. 8 is a cross-sectional view taken along line AA in FIG. 7, and FIG. FIG. In addition, the same code | symbol is attached | subjected to the same thing as Embodiment 1, and the overlapping description is abbreviate | omitted.

  The wall portion 30 of the present embodiment includes two side wall portions 31, one rear wall portion 32, and a closing wall portion 70.

  The rear wall portion 32 is a member extending in the vehicle width direction (Y direction), and connects between the two side wall portions 31. Further, the closing wall portion 70 is an example of a closing means, and extends in the front-rear direction from the internal space 90 surrounded by the wall portion 30 along the guide groove 71 provided in the side wall portion 31 to the position where the opening portion 40 is closed ( X direction).

  The side wall part 31, the rear wall part 32, and the closing wall part 70 can be accommodated in a recess (not shown) opened in the ground plane P. And it can move up and down by the actuator provided in the said recessed part. FIG. 6 and FIG. 9A show the closing wall portion 70 located at the end portion on the rear wall portion 32 side in the guide groove 71. The closing wall portion 70 is accommodated in the recess at the position, and can be erected on the ground contact surface P.

  The guide groove 71 is provided on the inner surface side of the side wall portion 31 and has a length substantially equal to the length of the side wall portion 31 in the X direction. As shown in FIG. 9B, when the closing wall portion 70 moves to the front end portion of the electric vehicle 1 along the guide groove 71, the opening portion 40 is closed by the closing wall portion 70. As a result, the wall portion 30 that surrounds the power transmission coil 20 is formed by the side wall portion 31, the rear wall portion 32, and the closing wall portion 70.

  Moreover, as shown to Fig.9 (a) and FIG.9 (b), the closing wall part 70 serves as the exclusion means. That is, in the process in which the closed wall portion 70 moves from the state located in the internal space 90 surrounded by the wall portion 30 (FIG. 9A) to the state located in the open portion 40 (FIG. 9B). A foreign object including a small animal or the like existing in the vicinity of the coil 20 is pressed by the closing wall portion 70 and removed from the opening portion 40 to the outside.

  Here, the structure which moves the closing wall part 70 to the front-back direction is demonstrated using FIG.7 and FIG.8.

  The closing wall portion 70 has a guide piece 72 protruding in the vehicle width direction (Y direction). In the present embodiment, two guide pieces 72 are provided at both end portions of the closing wall portion 70 (only one end portion side of the closing wall portion 70 is shown in FIG. 8). A flange portion 73 wider than the width of the guide groove 71 is provided at the tip of the guide piece 72.

  The side wall portion 31 is formed with a space portion 74 in which the flange portion 73 is accommodated. Further, two guide grooves 71 extending in the front-rear direction (X direction) are formed in the side wall portion 31. Each guide groove 71 communicates with the space 74.

  The flange portion 73 is accommodated in the space portion 74, and the guide piece 72 is inserted through the guide groove 71. Thus, the closed wall portion 70 is attached to the side wall portion 31, so that the closed wall portion 70 can move in the front-rear direction along the guide groove 71.

  An annular wire 75 is attached to the flange portion 73. Specifically, the wire 75 is fixed to one flange portion 73 (the upper flange portion 73 in FIG. 8). The other flange portion 73 (lower flange portion 73 in FIG. 8) is provided with a through hole 76, and the wire 75 is inserted through the through hole 76.

  Part of the annular wire 75 is accommodated in the space part 74, and the other part is drawn out from the space part 74 to the recess 81. The concave portion 81 is a space provided in the basement for accommodating the side wall portion 31, and a motor 79 for rotating the wire 75 is disposed. The motor 79 is connected to a drive pulley 77 via a belt 79a. Thereby, the driving pulley 77 is rotated by the rotational force of the motor 79.

  The wire 75 is stretched around a driving pulley 77 and a plurality of driven pulleys 78 arranged as appropriate. Therefore, by driving the motor 79, the annular wire 75 rotates.

  Since the flange portion 73 is fixed to the wire 75, the flange portion 73 is moved in the X direction along the guide groove 71 as the wire 75 rotates. If the wire 75 is rotated in one direction, the closing wall portion 70 moves from right to left as shown in FIGS. If the wire 75 is rotated in the opposite direction, the closing wall portion 70 moves from left to right, although not particularly shown.

  In the charging device 10 having the configuration described above, the side wall portion 31, the rear wall portion 32, and the closing wall portion 70 are accommodated in a recess opened in the ground plane P when charging is not performed. And when it detects that the electric vehicle 1 stops in the parking space S, the side wall part 31, the rear wall part 32, and the closing wall part 70 are raised, and it stands from the grounding surface P (refer FIG. 6).

  Next, the closing wall portion 70 located in the internal space 90 (see FIG. 9A) is moved to a position where the opening portion 40 is closed by driving the motor 79 (see FIG. 9B). Thereby, the lacking part of the wall part 30 is eliminated, and the wall part 30 is in a state of surrounding the power transmission coil 20.

  If there is a foreign object including a small animal or the like in the vicinity of the power transmission coil 20, the foreign object including the small animal or the like can be expelled from the open part 40 to the outside by the movement of the closing wall 70 as described above. And while removing the foreign material containing a small animal in this way, the wall part 30 which surrounds the power transmission coil 20 by the side wall part 31, the rear wall part 32, and the closing wall part 70 is formed (refer FIG.9 (b)). Thereby, in the state which excluded the foreign material containing a small animal etc. from the vicinity of the power transmission coil 20, the circumference | surroundings of the power transmission coil 20 are enclosed by the wall part 30, and the approach of the foreign material containing a small animal etc. can be prevented.

  In the charging device 10 having the configuration described above, when the electric vehicle 1 stops in the parking space S and performs charging in a non-contact manner, the wall 30 where the opening 40 is formed surrounds the power transmission coil 20. And the foreign material containing the small animal etc. which exist in the vicinity of the power transmission coil 20 is driven out from the open part 40 by moving the closing wall part 70 in the front-back direction. And the open part 40 is closed with the closing wall part 70 in the state which excluded the foreign material containing a small animal etc. from the vicinity of the power transmission coil 20. FIG.

  According to such a charging device 10, even if a foreign object including a small animal or the like exists in the vicinity of the power transmission coil 20 before charging, the power transmission coil 20 is removed after the foreign material including the small animal or the like is excluded by the closed wall portion 70. Is surrounded by a wall 30. Therefore, it is possible to avoid foreign substances including small animals and the like from being trapped in the internal space 90 formed by the wall portion 30, and the contactless charging can be performed safely and efficiently from the power transmission coil 20 to the power reception coil 5.

<Other embodiments>
As mentioned above, although one embodiment of the present invention has been described, of course, the present invention is not limited to the above-described embodiment, and addition, omission, replacement, etc., of a configuration is possible without departing from the spirit of the present invention. And other changes are possible.

  For example, although the blower 50 and the closed wall portion 70 are illustrated as the exclusion means, the present invention is not limited to this, and any device that can exclude foreign matters including small animals from the opening portion 40 to the outside may be used. For example, a device that emits a warning sound or a device that emits light may be used as the exclusion unit.

  Moreover, although the closing wall part 60 and the closing wall part 70 were used as a closing means, if it is the structure which can close the open part 40 formed in the wall part 30, it will not specifically limit.

DESCRIPTION OF SYMBOLS 1 ... Electric vehicle, 5 ... Power receiving coil, 10 ... Charging apparatus (non-contact charging apparatus for electric vehicles), 20 ... Power transmission coil, 30 ... Wall part, 31 ... Side wall part, 32 ... Rear wall part, 40 ... Opening part 50 ... Blower device (exclusion means) 51 ... Blower part 60 ... Closed wall part (closed means) 70 ... Closed wall part (closed means / exclusion means) 90 ... Internal space

Claims (6)

A power transmission coil that supplies power in a non-contact manner to a power reception coil provided in the electric vehicle;
A wall portion provided between the electric vehicle and a ground plane on which the electric vehicle stops, and surrounding the power transmission coil;
An open portion communicating the inside and the outside of the wall portion;
Exclusion means for excluding foreign objects including small animals inside the wall part toward the open part,
A non-contact charging device for an electric vehicle, comprising: closing means for closing the open portion. In the non-contact charging device for electric vehicles according to claim 1,
The non-contact charging device for an electric vehicle, wherein the exclusion means is a blower that blows air from the inside surrounded by the wall portion toward the open portion. In the non-contact charging device for an electric vehicle according to claim 1 or claim 2,
The wall portion is movable upward from the grounding surface from a state stored in the basement,
A closed wall portion that is a part of the wall portion is accommodated in the basement, and the portion other than the closed wall portion moves above the grounding surface, thereby forming the open portion,
The non-contact charging device for an electric vehicle, wherein the closing means is the closing wall portion that moves upward from the ground surface and closes the opening portion. In the non-contact charging device for electric vehicles according to claim 1,
The closing means is a closing wall portion that is movable in the horizontal direction from the inside surrounded by the wall portion to a position for closing the opening portion,
The non-contact charging device for an electric vehicle, wherein the closing wall portion also serves as the exclusion means. In the non-contact charging device for electric vehicles according to any one of claims 1 to 4,
The non-contact charging apparatus for an electric vehicle, wherein the closing means closes the opening when no foreign matter including a small animal is detected inside the wall. In the non-contact charging device for an electric vehicle according to any one of claims 1 to 5,
The non-contact charging device for an electric vehicle characterized in that the exclusion means excludes a foreign matter including a small animal or the like when a foreign matter is detected inside the wall portion.

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