JP2014124078A - Power transmission apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power transmission apparatus capable of facilitating installation thereof while restraining a power transmission unit from being interrupted.SOLUTION: The power transmission apparatus 11 includes: a high-frequency power supply 12 that outputs high-frequency power; a power transmission unit 13 that has a primary coil 13a; and a connection member 92 connected with the high-frequency power supply 12 and the power transmission unit 13. The power transmission apparatus 11 includes a direct-acting slider 80 with a direct-acting movable section 81. When the movable section 81 comes into direct action, the connection section 92 moves in the longitudinal direction and the power transmission unit 13 comes into direct action.

Description

  The present invention relates to power transmission equipment.

  2. Description of the Related Art Conventionally, as a power transmission device capable of transmitting power in a contactless manner to a power receiving device having a secondary coil, a power transmission device that includes an AC power source and a primary coil to which AC power is input from the AC power source. It is known (see, for example, Patent Document 1). Patent Documents 2 and 3 describe a moving device that moves the primary coil so as to be aligned with the secondary coil.

JP 2009-106136 A JP2012-16209A JP 09-215111 A

  Here, for example, as shown in FIG. 14A, a power transmission unit 301 having a primary coil and a power transmission unit 301 to transmit power to a vehicle C on which a power receiving unit X having a secondary coil is mounted, In some cases, the unit 301 and the cable 303 that connects the AC power supply 302 are arranged on the ground. In this case, while the power transmission unit 301 and the cable 303 can be easily installed, the power transmission unit 301 and the like are easily disturbed. In particular, if the power transmission unit 301 is to be moved as described above, the power transmission unit 301 becomes large and the above-described inconvenience is likely to occur.

  On the other hand, as shown in FIG. 14B, when the power transmission unit 301 and the cable 303 are embedded in the ground, the power transmission unit 301 and the like are not easily disturbed, but the installation is likely to be complicated, and the power transmission unit 301 and the like are inspected. And replacement is likely to be complicated. In particular, if the power transmission unit 301 is moved as described above, the installation tends to be complicated due to the large size of the power transmission unit 301. In addition, when a cavity is formed due to securing a moving space of the power transmission unit 301, it is assumed that the ground is likely to sink.

  This invention is made | formed in view of the situation mentioned above, and it aims at providing the power transmission apparatus which can be installed easily, suppressing that a power transmission unit gets in the way.

  A power transmission device that achieves the above object includes an AC power source that outputs AC power and a power transmission unit that includes a primary coil, and transmits the AC power in a contactless manner to a power receiving device that includes a secondary coil. And a connecting member connected to the movable part and the power transmission unit, wherein the power transmission unit linearly moves with the movement of the movable part. And

  According to such a configuration, when the movable portion moves linearly, the connecting member moves, and accordingly, the power transmission unit moves linearly. Thus, for example, when power transmission is performed, the power transmission unit is moved linearly, and the power transmission unit is arranged at a position where power can be transmitted, thereby facilitating alignment between the primary side coil and the secondary side coil. be able to. On the other hand, when power transmission is not performed, the power transmission unit is less likely to get in the way by disposing the power transmission unit at a position that is less likely to get in the way, for example, closer to the movable part. Therefore, it can suppress that a power transmission unit becomes obstructive, without embedding a power transmission unit in the ground. Therefore, it is possible to easily install the power transmission device while suppressing the power transmission unit from being in the way.

  About the said power transmission apparatus, it is good for the said movable part to be linearly movable in a perpendicular direction. According to such a configuration, since the movable portion can move linearly in the vertical direction, the space occupied by the power transmission device in the horizontal direction can be reduced compared to a configuration in which the movable portion moves linearly in the horizontal direction. .

  About the said power transmission apparatus, as for the said connection member, it is good for the one end part side connected with the said movable part to extend in the vertical direction, and the other end part side connected with the said power transmission unit is extended in the horizontal direction. According to such a configuration, the one end side of the connecting member connected to the movable portion extends in the vertical direction, and the other end side of the connecting member connected to the power transmitting unit extends in the horizontal direction, so that the power transmitting unit is horizontal. A part of the connecting member can be arranged so as to extend in the vertical direction while being able to move linearly in the direction, and through this, the space of the connecting member occupying in the horizontal direction can be reduced.

About the said power transmission apparatus, the said power transmission unit is good to provide the wheel. According to such a configuration, friction between the power transmission unit and the installation surface can be reduced.
The power transmission device may include a rotation mechanism that rotates the movable unit and the power transmission unit with a direction orthogonal to an installation surface on which the power transmission unit is installed as an axial direction. According to such a configuration, since the linear motion direction of the power transmission unit on the installation surface can be changed, even if a positional deviation in the rotation direction of the secondary coil with respect to the power transmission unit occurs, the power transmission unit 2 It can arrange | position in the position facing a secondary coil.

  About the said power transmission apparatus, while being connected to the said AC power supply and the said power transmission unit, the said power supply is provided, The said connection member is good to hold | maintain the said cable. According to such a configuration, the connecting member and the cable move integrally with the linear movement of the movable portion, so that the cable can be prevented from interfering and the power transmission unit moves linearly. In this case, the force applied to the cable can be reduced.

  About the said power transmission apparatus, the said connection member is good to accommodate the said cable. According to this configuration, since the cable is accommodated in the connecting member, it is possible to avoid problems such as an excessive load being applied to the cable.

  A power transmission device that achieves the above object includes an AC power source that outputs AC power and a power transmission unit that includes a primary coil, and transmits the AC power in a contactless manner to a power receiving device that includes a secondary coil. A movable portion, an attachment portion to which the movable portion is mounted so as to be linearly movable, one end portion in the extending direction is joined to the movable portion, and the other end portion in the extending direction is joined to the power transmission unit. A connecting member, wherein one end of the extending direction extends in the vertical direction, the other end of the extending direction extends in the horizontal direction, and the extending direction extends from the other end of the extending direction. At least a part of the curved portion that is curved from the horizontal direction toward the upper side in the vertical direction toward the one end portion side is located immediately below the attachment portion.

  According to such a configuration, since at least a part of the curved portion is located immediately below the attachment portion, the space immediately below the attachment portion functions as an installation space for the curved portion. Therefore, the power transmission device can be reduced in size.

  About the power transmission device, a pedestal member provided at a position floating with respect to an installation surface on which the power transmission unit is installed, and a rotation mechanism that rotates the pedestal member with the vertical direction as an axial direction. And at least a part of the rotation mechanism may be disposed vertically below the pedestal member in a state where a space in which the power transmission unit can be disposed is formed between the rotation mechanism and the installation surface. . According to this structure, the attachment part installed in the base member rotates by rotating the base member. Thereby, the movable part attached to the attachment part and the connecting member joined to the movable part rotate. Therefore, the power transmission unit joined to the connecting member rotates, and the linear motion direction of the power transmission unit is changed. Therefore, the power transmission unit can be properly aligned with the secondary coil.

  In such a configuration, at least a part of the rotation mechanism is disposed below the pedestal member in the vertical direction in a state where a space in which the power transmission unit can be disposed is formed between the rotation mechanism and the installation surface. Thereby, the further miniaturization of the power transmission device can be achieved by arranging the power transmission unit in the space.

  Regarding the power transmission device, the rotation mechanism includes a rotation motor used to rotate the pedestal member, and the rotation motor is disposed at a position shifted from the pedestal member when viewed from above in the vertical direction. And projecting upward in the vertical direction from the pedestal member. According to such a configuration, when viewed from above in the vertical direction, the rotary motor is located at a position displaced from the pedestal member and protrudes upward in the vertical direction relative to the pedestal member. Therefore, the rotary motor protrudes downward in the vertical direction. This can be suppressed. Thereby, it can avoid that a power transmission unit etc. interfere with a rotary motor.

  According to this invention, it can install easily, suppressing that a power transmission unit gets in the way.

The schematic diagram which shows the outline | summary of the non-contact electric power transmission apparatus provided with the power transmission apparatus of 1st Embodiment. The perspective view of power transmission equipment. The perspective view which shows the internal structure of power transmission equipment. The perspective view which expands and shows a part of internal structure of power transmission equipment. The perspective view which expands and shows a part of internal structure of power transmission equipment. (A) is a side surface schematic diagram of the power transmission equipment in the situation where the power transmission unit is arranged at the initial position, (b) is a side schematic view of the power transmission equipment showing a state in which the power transmission unit is linearly moved, (c) (B) is a partially enlarged view of (b). (A), (b) is a plane schematic diagram for demonstrating a series of operation | movement of power transmission equipment. The perspective view which shows the internal structure of the power transmission apparatus of 2nd Embodiment. The perspective view which expands and shows a part of internal structure of power transmission equipment. The side surface schematic diagram which shows the internal structure of power transmission equipment. The top view which shows typically the structure which concerns on accommodation of a cable. The side view which shows typically the structure which concerns on accommodation of a cable. The front view which shows typically the structure which concerns on accommodation of a cable. (A), (b) is a schematic diagram which shows the installation aspect of the conventional power transmission unit.

(First embodiment)
Hereinafter, 1st Embodiment of power transmission equipment is described, showing the outline of a non-contact electric power transmission device (non-contact electric power transmission system).

  As shown in FIG. 1, a non-contact power transmission device 10 that performs non-contact power transmission includes a power transmission device 11 (ground side device) installed on the ground and a power receiving device 21 (vehicle side device) mounted on a vehicle C. ).

  The power transmission device 11 includes a high frequency power source 12 (AC power source) capable of outputting high frequency power (AC power) having a predetermined frequency. The high-frequency power source 12 is configured to convert system power supplied from a system power source serving as infrastructure into high-frequency power and output the converted high-frequency power.

  The high-frequency power output from the high-frequency power source 12 is transmitted to the power receiving device 21 in a non-contact manner, and is input to the vehicle battery 22 provided in the power receiving device 21. Specifically, the power transmission device 11 includes a power transmission unit 13 (power transmitter) having a primary side coil 13 a to which high frequency power is input from a high frequency power source 12. The power receiving device 21 includes a power receiving unit 23 (power receiver) having a secondary side coil 23a capable of receiving high-frequency power in a non-contact manner from the primary side coil 13a.

  The power transmission unit 13 and the power reception unit 23 are configured to be capable of magnetic field resonance. For example, the power transmission unit 13 has a resonance circuit including a primary side coil 13a and a primary side capacitor (not shown) connected in series or in parallel to the primary side coil 13a. The power receiving device 21 has a resonance circuit including a secondary side coil 23a and a secondary side capacitor (not shown) connected in series or in parallel to the secondary side coil 23a. Both resonance frequencies are set to be the same.

  According to this configuration, when high-frequency power is input to the power transmission unit 13 (primary coil 13a) in a situation where the power transmission unit 13 and the power reception unit 23 are arranged at positions where magnetic field resonance is possible, the resonance of the power transmission unit 13 is achieved. The circuit and the resonance circuit of the power receiving unit 23 perform magnetic field resonance. As a result, the power receiving unit 23 receives high frequency power from the power transmitting unit 13.

  Incidentally, the power receiving unit 23 is disposed at the bottom of the vehicle C, specifically, at a portion facing the ground. Moreover, the axial direction of each coil 13a, 23a corresponds with the vehicle height direction (vertical direction).

  The high frequency power received by the power receiving unit 23 is rectified by the rectifier 24 provided in the power receiving device 21 and input to the vehicle battery 22. Thereby, the vehicle battery 22 is charged.

  The power transmission device 11 includes a power supply side controller 14 that controls the high frequency power supply 12 and the like. In addition, the power receiving device 21 includes a vehicle-side controller 25 that can wirelessly communicate with the power supply-side controller 14. The non-contact power transmission device 10 starts or ends charging of the vehicle battery 22 while exchanging information between the controllers 14 and 25.

  Here, the power transmission device 11 is configured to be able to grasp whether or not the vehicle C is disposed at a position where power can be transmitted. Moreover, the power transmission apparatus 11 is comprised so that the position of the power receiving unit 23 can be grasped | ascertained, when the vehicle C is arrange | positioned in the position which can transmit electric power.

Next, a detailed configuration of the power transmission device 11 will be described.
As shown in FIG. 2, the power transmission device 11 includes a housing 30 that forms the outer shape thereof. The housing 30 is fixed on the ground and accommodates various components such as the power transmission unit 13 of the power transmission device 11. Specifically, the housing 30 includes a rectangular parallelepiped main body portion 31 extending in the vertical direction, and a protruding housing portion 32 protruding from a portion of the main body portion 31 on the ground side. For this reason, the housing | casing 30 becomes L shape seeing from the side.

  The protruding housing portion 32 is formed in a size that can accommodate the power transmission unit 13. The protrusion accommodating portion 32 has a fan shape when viewed from above in the vertical direction, and a curtain 32a is provided on a side portion extending in the vertical direction. The power transmission unit 13 is installed on the ground (installation surface) in a state of being accommodated in the protruding accommodation portion 32, and can pass through the curtain 32a.

  Here, the power transmission device 11 is accommodated in the main body 31 and includes a mechanism for causing the power transmission unit 13 to move linearly along the ground. The mechanism will be described while showing the structure of the power transmission device 11.

  As illustrated in FIG. 3, the power transmission device 11 includes a frame-shaped lower frame 40 supported by legs 41 provided at four corners. The lower frame 40 is provided with legs 41 at the ends, extends in a direction orthogonal to the pair of opposed frames 42 and 43 facing each other, and the pair of opposed frames 42 and 43, and connects the pair of opposed frames 42 and 43. It is composed of two connecting frames 44 and 45. One connecting frame 44 connects the ends of the pair of opposing frames 42 and 43, and the other connecting frame 45 connects the midpoint positions of the pair of opposing frames 42 and 43.

For convenience of explanation, in the following explanation, the direction in which the pair of opposed frames 42 and 43 extend is referred to as the Y direction, and the direction along the ground and perpendicular to the Y direction is also referred to as the X direction.
The power transmission device 11 includes, as a rotation mechanism, a rotary table 51 fixed in a rotatable state with respect to the lower frame 40, and a rotary motor 52 attached to the rotary table 51. The turntable 51 is disposed between the two connection frames 44 and 45 and is configured to be rotatable with the vertical direction that is perpendicular to the ground as the axis direction. The rotary motor 52 rotates the rotary table 51 using a gear or the like, for example. In addition, the rotary table 51, the other connection frame 45, and the power transmission unit 13 are arranged in the Y direction when viewed from above in the vertical direction.

  The power transmission device 11 includes a pedestal member 60 that rotates as the rotary table 51 rotates. The pedestal member 60 is formed by bending a single rectangular plate larger than the upper surface of the turntable 51, and is a rectangular base portion 61 fixed to the upper surface of the turntable 51 in a state of being arranged in parallel with the ground. And an extending part 62 extending downward in the vertical direction from the end of the base part 61 on the power transmission unit 13 side. The extension 62 is disposed between the rotary table 51 and the power transmission unit 13 as viewed from above in the vertical direction, and closer to the power transmission unit 13 than the other connection frame 45.

  In addition, the power transmission device 11 includes an upper frame 70 fixed to the upper surface of the base portion 61. The upper frame 70 includes a square frame-shaped base frame 71 formed along the edge of the upper surface of the base portion 61. The upper frame 70 is provided upright from the side of the base frame 71 on the power transmission unit 13 side, and includes two vertical frames 72 extending upward in the vertical direction and a support frame 73 that supports the vertical frame 72. I have. The support frame 73 is provided upright from the side of the base frame 71 opposite to the power transmission unit 13 side, and has two opposing frames 73a that face the two vertical frames 72, respectively. The height of the vertical frame 72 is higher than the height of the opposing frame 73a. The support frame 73 includes a connecting frame 73 b that connects the vertical frames 72, the opposing frames 73 a, and the opposing frame 73 a and the vertical frame 72. The connection frame 73b has a rectangular frame shape, is fixed to the upper end portion of the opposing frame 73a, and is fixed to an intermediate position of the vertical frame 72.

  As shown in FIG. 3, the power transmission device 11 includes a linear motion slider 80 (linear motion mechanism) having a movable portion 81 that can linearly move. The linear motion slider 80 includes a drive unit 82 that linearly moves (slides) the movable unit 81. The drive unit 82 has a rectangular parallelepiped shape extending in the vertical direction, and is fixed to the vertical frame 72 on the surface opposite to the power transmission unit 13 side. Note that linear movement (sliding movement) can also be said to be linear movement.

  The linear motion slider 80 is provided on the surface of the drive unit 82 on the power transmission unit 13 side, and includes a guide rail 83 that guides the linear motion of the movable unit 81. The guide rail 83 is provided at a predetermined interval with respect to the surface of the drive unit 82 on the power transmission unit 13 side. The guide rail 83 has a plate shape extending in the vertical direction, and both end portions in the longitudinal direction are attached to the drive unit 82.

  As shown in FIG. 4, the movable portion 81 is attached to the guide rail 83 in a slidable state. Specifically, the movable portion 81 has a square cylindrical shape when viewed from above in the vertical direction, and a guide rail 83 is inserted inside the movable portion 81. According to such a configuration, the movable portion 81 can move linearly along the guide rail 83 in the vertical direction.

  As shown in FIG. 3, the power transmission device 11 electrically connects the high-frequency power source 12 and the power transmission unit 13 (primary coil 13 a), and transmits a high-frequency power cable 91 and a movable portion 81. And a connecting member 92 that connects the power transmission unit 13 to each other. The connecting member 92 has a long shape. As shown in FIGS. 4 and 5, one end portion 92a in the longitudinal direction (extending direction) of the connecting member 92 is connected (joined) to the movable portion 81, and the other end portion 92b in the longitudinal direction of the connecting member 92 is The power transmission unit 13 is connected (joined).

  The connecting member 92 holds the cable 91. As shown in FIG. 4, the connecting member 92 is formed in, for example, a cylindrical shape having a square cross section as a whole, and accommodates the cable 91 therein. The relative position between the cable 91 and the connecting member 92 is fixed.

  The connecting member 92 has rigidity so as not to be contracted by the force in the longitudinal direction, and the connecting member 92 moves along the longitudinal direction when a force is applied in the longitudinal direction. ing. Further, the connecting member 92 can be bent in one direction. In other words, the connecting member 92 has flexibility in one direction.

  The connecting member 92 is connected to the movable portion 81 so that the bendable direction matches the Y direction. The connecting member 92 is curved at an intermediate position in the longitudinal direction, and the one end 92a side in the longitudinal direction extends in the vertical direction, and the other end 92b side extends in the horizontal direction. In this case, it can be said that the connecting member 92 is rigid in the horizontal direction in which the power transmission unit 13 linearly moves, is not easily bent, and can be bent in the vertical direction. The horizontal direction is a direction along the ground (installation surface).

  As shown in FIG. 5, a guide roller unit 101 that holds the connecting member 92 in a curved state is fixed to the extending portion 62 of the base member 60. The guide roller unit 101 includes a pair of opposed plates 102 fixed to the extending portion 62. The pair of opposing plates 102 sandwich the connecting member 92 from the direction (X direction) orthogonal to the direction in which the connecting member 92 can be bent. The guide roller unit 101 includes a plurality of guide rollers 103 provided on a pair of opposed plates 102. A plurality of guide rollers 103 are arranged along the curve of the connecting member 92.

  According to such a configuration, as shown in FIG. 6, when the movable portion 81 linearly moves downward in the vertical direction, the connecting member 92 pushes the power transmission unit 13 in the Y direction in an attempt to move along the longitudinal direction. Thereby, the power transmission unit 13 moves linearly in the Y direction. In this case, the linear motion distance of the movable part 81 and the linear motion distance of the power transmission unit 13 are the same. A length H in the longitudinal direction of a portion provided at a predetermined interval with respect to the drive unit 82 of the guide rail 83 corresponds to the maximum linear motion distance L of the movable unit 81. The length H can also be said to be a distance between both end portions 83a and 83b of the guide rail 83.

  Here, since the relative position between the connecting member 92 and the cable 91 is fixed, the cable 91 moves as the connecting member 92 moves in the longitudinal direction. If attention is paid to this point, it can be said that the linear movement slider 80 is one in which the cable 91 moves when the movable portion 81 moves linearly, and the power transmission unit 13 can also be said to move linearly as the cable 91 moves. .

If attention is paid to the relationship between the linear movement direction of the power transmission unit 13 and the bendable direction of the connecting member 92, it can be said that the linear movement direction of the power transmission unit 13 is the bendable direction of the connecting member 92.
Incidentally, as shown in FIG. 6, wheels 111 are provided on the bottom surface of the power transmission unit 13. The wheel 111 is composed of, for example, a free wheel or an omni wheel.

  Further, as shown in FIG. 6A, the position of the power transmission unit 13 in a situation where the movable portion 81 is arranged on the end portion 83a side far from the ground among the longitudinal end portions 83a and 83b of the guide rail 83 is shown. The initial position. When the power transmission unit 13 is disposed at the initial position, the power transmission unit 13 is accommodated in the housing 30, specifically, the protrusion accommodating portion 32. When the power transmission unit 13 is in the initial position, the linear movement direction of the power transmission unit 13 coincides with the Y direction.

  On the other hand, as shown in FIG. 6B, in a situation where the movable portion 81 is disposed on the end portion 83 b side close to the ground among the both end portions 83 a and 83 b in the longitudinal direction of the guide rail 83, the power transmission unit 13 is The projection housing portion 32 is disposed outside. That is, the power transmission unit 13 can move directly between the initial position (first position) in the protruding housing portion 32 and the position outside the protruding housing portion 32 (second position).

  If attention is paid to the positional relationship with the linear motion slider 80, the power transmission unit 13 has an initial position (first position) closer to the linear motion slider 80 and the linear motion slider 80 (movable part 81) than the initial position. It can also be said that it is possible to move directly between the position (second position) separated from the position.

  Next, the rotation mechanism that rotates the linear slider 80 will be described. As described above, the rotary table 51 and the base member 60 to which the vertical frame 72 is fixed are fixed. For this reason, when the rotary table 51 is rotated by the rotary motor 52, the base member 60 is rotated accordingly. Then, various parts fixed to the pedestal member 60, specifically the vertical frame 72, the linear motion slider 80 fixed to the vertical frame 72, and the guide roller fixed to the extending portion 62 of the pedestal member 60. Unit 101 rotates. Thereby, the connection member 92 and the power transmission unit 13 also rotate with the vertical direction as the axial direction. Therefore, the linear motion direction of the power transmission unit 13 is changed. That is, the linear motion slider 80 as the linear motion mechanism realizes the radial movement of the power transmission unit 13, and the rotary table 51 and the rotary motor 52 as the rotational mechanism are the rotary table 51 (linear motion slider 80). The power transmission unit 13 is moved in the rotational direction with the vertical direction as the axis direction.

  As shown in FIG. 3, a linear motion control unit 121 that controls the movable portion 81 and a rotation control unit 122 that controls the rotary motor 52 are attached to the vertical frame 72. Each of these control units 121 and 122 controls the linear motion distance and the linear motion direction of the power transmission unit 13 by controlling the movable portion 81 and the rotary motor 52 based on the operation command from the power supply side controller 14.

  Incidentally, as shown in FIG. 7 and the like, the curtain 32 a is formed wider than the rotatable range of the rotary table 51. For this reason, regardless of the direction in which the power transmission unit 13 is facing, the power transmission unit 13 can move directly outside the housing 30 via the curtain 32a.

Next, as a function of the present embodiment, a series of operations of the power transmission device 11 will be described.
As illustrated in FIG. 7A, when the vehicle C having the power receiving unit 23 is disposed near the power transmission device 11, the power supply side controller 14 (see FIG. 1) of the power transmission device 11 is mounted on the vehicle C. The position of the power receiving unit 23 is grasped. As the position of the power receiving unit 23, for example, the distance between the origin and the center of the power receiving unit 23 when the rotation center of the power transmitting unit 13 is the origin, a straight line passing through the origin and extending in the Y direction, and the origin and the power receiving unit 23. There is an angle formed with a straight line that passes through the center of the screen and extends in the horizontal direction.

  Thereafter, the power supply side controller 14 transmits an operation command in which information on the angle is set to the rotation control unit 122. When the rotation control unit 122 receives the operation command, the rotation control unit 122 controls the rotation motor 52 so that the linear movement direction of the power transmission unit 13 coincides with a straight line passing through the origin and the center of the power reception unit 23. Rotate. Thereby, as shown in FIG.7 (b), the linear motion direction of the power transmission unit 13 is changed.

  Subsequently, the power supply side controller 14 transmits an operation command in which information related to the distance between the origin and the center of the power receiving unit 23 is set to the linear motion control unit 121. When the linear motion control unit 121 receives the operation command, the linear motion control unit 121 calculates a target distance for the power transmission unit 13 to be located immediately below the power reception unit 23 from the distance. The linear motion control unit 121 controls the drive unit 82 so that the movable unit 81 moves linearly by the target distance.

  As described above, the power transmission unit 13 is arranged directly below the power reception unit 23 by rotating and linearly moving the power transmission unit 13. Thereafter, as shown in FIG. 1, the power supply controller 14 controls the high frequency power supply 12 so that high frequency power is output from the high frequency power supply 12. Thereby, electric power transmission is performed between the power transmission apparatus 11 and the power receiving apparatus 21, and the vehicle battery 22 is charged.

  When the center of the power transmission unit 13 and the center of the power reception unit 23 are aligned in the Y direction, the power supply side controller 14 linearly moves the power transmission unit 13 directly without rotating the rotary table 51. An operation command is transmitted to the control unit 121.

  After the charging of the vehicle battery 22 is completed, the power supply side controller 14 controls the high frequency power supply 12 so that the output of the high frequency power from the high frequency power supply 12 is stopped. And the power supply side controller 14 transmits an operation command with respect to each control unit 121,122 so that the power transmission unit 13 may return to an initial position. Based on the reception of the operation command, each of the control units 121 and 122 drives and controls the movable portion 81 and the rotary motor 52 so that the power transmission unit 13 is disposed at the initial position.

According to the embodiment described in detail above, the following excellent effects are obtained.
(1) The movable part 81 which can move linearly and the connecting member 92 connected to the movable part 81 and the power transmission unit 13 are provided. The power transmission unit 13 moves linearly with the movement of the connecting member 92. Specifically, the movable part 81 pushes or pulls back the connecting member 92 in the longitudinal direction by moving linearly, thereby causing the power transmission unit 13 to move linearly. Thereby, when necessary, the power transmission unit 13 is directly moved to realize non-contact power transmission, and when not necessary, the power transmission unit 13 is on the side where the linear motion slider 80 or the like is disposed. By arrange | positioning in an initial position, the power transmission unit 13 and the cable 91 are hard to get in the way. Therefore, it is possible to prevent the power transmission unit 13 and the cable 91 from getting in the way while facilitating the installation of the power transmission unit 13 and the cable 91 and the inspection of the power transmission unit 13 and the cable 91.

  In particular, by directly moving the power transmission unit 13, it is possible to facilitate the alignment of the primary side coil 13a and the secondary side coil 23a. Further, as a configuration in which the power transmission unit 13 is linearly moved, the power transmission unit 13 is linearly moved with a relatively simple configuration by adopting the linear slider 80 in which the connecting member 92 moves as the movable portion 81 moves linearly. Can do. Further, the force related to the direct movement of the movable portion 81 can be directly transmitted to the direct movement of the power transmission unit 13. And since the linear motion distance of the movable part 81 and the linear motion distance of the power transmission unit 13 become the same, the shift | offset | difference of direct motion distance, etc. do not occur easily. Thereby, by controlling the linear motion distance of the movable part 81, the linear motion distance of the power transmission unit 13 can be controlled, and the linear motion distance of the power transmission unit 13 can be controlled relatively easily and accurately. it can.

  Furthermore, according to the present embodiment, there is no need to provide a mechanism for causing the power transmission unit 13 to move directly. Thereby, size reduction of the power transmission unit 13 can be achieved. Moreover, since the weight reduction of the power transmission unit 13 can be achieved, the driving force required to move the power transmission unit 13 directly can be reduced.

  (2) The movable part 81 is configured to be movable in the vertical direction. Thereby, since the drive part 82 etc. which drive the movable part 81 can be arrange | positioned so that it may extend in a perpendicular direction, the reduction of the space in a horizontal direction can be aimed at.

  (3) The connecting member 92 extends in the vertical direction at one end 92a in the longitudinal direction to which the movable portion 81 is connected, and extends in the horizontal direction at the other end 92b in the longitudinal direction to which the power transmission unit 13 is connected. It is so curved. Thereby, compared with the structure where the whole connection member 92 is extended in the horizontal direction, the space which the power transmission apparatus 11 occupies in the horizontal direction can be reduced, and the power transmission apparatus 11 can be made compact.

  More specifically, as already described, the linear motion distance of the power transmission unit 13 is the same as the linear motion distance of the movable portion 81, so if an attempt is made to increase the linear motion possible distance of the power transmission unit 13, It is necessary to increase the movable distance. For this reason, the length in the longitudinal direction of the linear motion slider 80 becomes longer. Therefore, it is easy to get in the way when these linear sliders 80 are arranged along the horizontal direction.

  On the other hand, according to this embodiment, the connecting member 92 is curved, a part (one end 92a side in the longitudinal direction of the connecting member 92) extends in the vertical direction, and another part (the longitudinal direction of the connecting member 92). The other end portion 92b side in the direction) extends in the horizontal direction. Thereby, the linear motion slider 80 can be arranged in a vertical direction with a relatively large space, and the linear motion distance of the movable portion 81 can be increased while preventing the linear motion slider 80 from interfering.

  (4) The guide roller unit 101 that holds the connecting member 92 in a curved state is provided. Thereby, it can be avoided that the direct movement of the connecting member 92 is hindered due to the connecting member 92 being curved.

  In particular, the guide roller unit 101 includes a pair of opposing plates 102 that sandwich the connecting member 92 from a direction (X direction) orthogonal to a direction in which the connecting member 92 can be bent (Y direction). Thereby, the twist of the connection member 92 can be avoided. Therefore, it can be avoided that the linear movement direction of the power transmission unit 13 is deviated or that the movement of the connecting member 92 is hindered.

  (5) The connecting member 92 is configured to hold the cable 91. Thereby, the connection member 92 and the cable 91 move integrally. Therefore, it is possible to prevent the cable 91 from being in the way and reduce the force applied to the cable 91 as the power transmission unit 13 moves linearly.

  (6) In particular, the connecting member 92 accommodates the cable 91. As a result, it is possible to avoid inconveniences such as an excessive load being applied to the cable 91 and the cable 91 being rubbed against the ground when the power transmission unit 13 moves linearly.

  (7) The wheels 111 are provided in the power transmission unit 13. Thereby, the friction with the ground (installation surface) and the power transmission unit 13 can be reduced, and the power transmission unit 13 can be moved straight smoothly.

  (8) The rotary table 51 and the rotary motor 52 are provided as a rotary mechanism that rotates the linear slider 80 with the vertical direction (direction orthogonal to the installation surface) as the axial direction. Thereby, since the linear motion direction of the power transmission unit 13 on the ground can be changed, the power transmission unit 13 can be changed even when the positional deviation in the rotation direction of the power reception unit 23 (vehicle C) with respect to the power transmission unit 13 occurs. The power receiving unit 23 can be disposed immediately below.

  In particular, the guide roller unit 101 is configured to rotate as the rotary table 51 rotates. Thereby, the torsion of the connecting member 92 that can be caused by the rotation of the linear slider 80 can be suppressed.

  (9) The protrusion housing portion 32 that houses the power transmission unit 13 in the state of being arranged at the initial position is provided. Thereby, in the situation where the power transmission unit 13 is arranged at the initial position, it is difficult to be exposed to sunlight, rain, dust, and the like, so that the abnormality of the power transmission unit 13 due to these factors can be avoided.

  On the other hand, by providing a curtain 32 a through which the power transmission unit 13 can pass at the side of the protruding housing part 32, it is possible to suppress the direct movement of the power transmission unit 13 from being inhibited by the protruding housing part 32.

(Second Embodiment)
In this embodiment, the arrangement | positioning relationship of the various components of the power transmission apparatus 11 differs. This point will be described in detail below. The same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. In the present embodiment, the control units 121 and 122 are omitted, and the power supply controller 14 performs various controls.

  As shown in FIG. 8 and FIG. 9, the lower frame 200 of the present embodiment is supported by the leg frame 201 and joined to the leg frame 201 in a vertical direction with respect to the ground. The base frame 202 is provided.

  The base frame 202 includes a pair of first opposing frames 211 and 212 that face each other, and second opposing frames 213 and 214 that are disposed between the first opposing frames 211 and 212 and face each other. The opposing frames 211 to 214 extend in the same direction, and are arranged side by side in a direction orthogonal to the extending direction. A leg frame 201 is joined to each of the positions of the first opposing frames 211 and 212 between one end in the extending direction and both ends in the extending direction. As in the first embodiment, for convenience of explanation, the direction in which each of the opposing frames 211 to 214 extends is defined as the Y direction, and the direction along the ground and perpendicular to the Y direction is defined as the X direction.

  The base frame 202 includes connecting frames 221 to 223 connected to the opposing frames 211 to 214. Each of the connecting frames 221 to 223 extends in the X direction and is at the same height as the opposing frames 211 to 214. Among the connection frames 221 to 223, the first connection frame 221 has both ends in the extending direction joined to positions between both ends in the extending direction of the first opposing frames 211 and 212, and both ends in the extending direction. One end of the second opposing frames 213 and 214 in the extending direction is joined to the intermediate position. The second connection frame 222 and the third connection frame 223 are disposed at positions facing the first connection frame 221 in the Y direction. The connection frames 222 and 223 are arranged at a predetermined interval in the X direction, and are connected to each other via a connection plate 224. As for the 2nd connection frame 222, the leg frame 201 is joined to the extension direction one end part, and the extension direction other end part of the 2nd opposing frame 213 is joined to the extension direction other end part. Further, the other end in the extending direction of the first opposing frame 211 is joined to a position between both ends in the extending direction of the second connection frame 222. In the third connection frame 223, the leg frame 201 is joined to one end portion in the extending direction, and the other end portion in the extending direction of the second opposing frame 214 is joined to the other end portion in the extending direction. Further, the other end in the extending direction of the first opposing frame 212 is joined to a position between both ends in the extending direction of the third connecting frame 223.

  The lower frame 200 extends in the extending direction of the connecting frames 222 and 223, and both ends in the extending direction are positions between the extending direction ends of the leg frame 201 joined to the connecting frames 222 and 223. 4th connection frame 225 joined to each. A cover member 226 extending in the Y direction is attached to the fourth connection frame 225. Thereby, the power transmission unit 13 is not easily exposed to rain or sunlight.

  The lower frame 200 includes a fifth connection frame 227 provided between the second connection frame 222 and the fourth connection frame 225. The fifth connection frame 227 extends in the vertical direction. One end of the fifth connecting frame 227 in the extending direction is joined to the other end of the second connecting frame 222 in the extending direction, and the other end of the fifth connecting frame 227 in the extending direction is connected to the fourth connecting frame 225. It is joined at a position between both ends in the extending direction.

  The lower frame 200 includes a sixth connection frame 228 provided between the third connection frame 223 and the fourth connection frame 225. The sixth connection frame 228 extends in the vertical direction. One end portion in the extending direction of the sixth connecting frame 228 is joined to the other end portion in the extending direction of the third connecting frame 223, and the other end portion in the extending direction of the sixth connecting frame 228 is joined to the fourth connecting frame 225. It is joined at a position between both ends in the extending direction.

  As shown in FIGS. 9 and 10, the pedestal member 230 of this embodiment is disposed between the pair of second opposing frames 213 and 214 and slightly higher than the base frame 202 when viewed from above in the vertical direction. ing. The pedestal member 230 is configured by bending a single rectangular plate, and includes a base portion 231 parallel to the ground and a second end opposite to the first end portion 231a on the power transmission unit 13 side of the base portion 231. And an extending part 232 extending downward in the vertical direction from the part 231b. When the direction in which the power transmission target approaches the vehicle C in the Y direction is the front and the direction in which the power transmission target is far from the vehicle C in the Y direction is the rear, the first end 231a is the front end of the base 231 and the second end The portion 231b is a rear end portion of the base portion 231. As shown in FIG. 9, the extending portion 232 is disposed behind the first connecting frame 221 and is connected to the guide roller unit 101.

  As illustrated in FIGS. 9 and 10, the power transmission device 11 includes a rotation mechanism 240 that rotates the pedestal member 230 with the vertical direction that is perpendicular to the ground as the axis direction. The rotating mechanism 240 includes a fixed unit 241 fixed to the base frame 202 and a rotating shaft 242 that is supported in a rotatable state with respect to the fixed unit 241. The fixing unit 241 is disposed below the pedestal member 230 in the vertical direction, and is fixed to the bottom surfaces of the pair of second opposing frames 213 and 214 and the first connection frame 221 of the base frame 202. The rotating shaft 242 passes through the fixed unit 241 in the vertical direction, and is rotatable with the vertical direction as the axial direction.

  As shown in FIG. 9, the pedestal member 230 is fixed to the rotating shaft 242. Specifically, the rotation shaft 242 includes a protrusion 242 a provided on the upper end surface of the rotation shaft 242. A through hole 231c into which the protruding portion 242a can be fitted is formed in the base portion 231 of the base member 230. The through hole 231c is disposed at a position biased toward the first end 231a side in the base portion 231 of the base member 230. The pedestal member 230 is fixed to the rotating shaft 242 with a screw or the like in a state where the protruding portion 242a is fitted in the through hole 231c. Thereby, the base member 230 is supported by the rotating shaft 242 in a state of floating with respect to the ground. The pedestal member 230 rotates with the vertical direction as the axial direction along with the rotation of the rotary shaft 242. In this case, the axis of the rotation shaft 242 becomes the rotation center line P of the base member 230.

  Note that if the rotary shaft 242 is supported by the fixed unit 241 and the fixed unit 241 is fixed to the lower frame 200, the rotary shaft 242, the fixed unit 241 and the lower frame 200 support the pedestal member 230. It can be said that it is a support.

  As shown in FIGS. 9 and 10, the rotation mechanism 240 includes a rotation motor 243 that is provided in the fixed unit 241 and rotates the rotation shaft 242. The rotation motor 243 is integrally provided at a side portion of the fixed unit 241. The rotary motor 243 is disposed at a position shifted from the pedestal member 230 when viewed from above in the vertical direction, and protrudes upward in the vertical direction from the pedestal member 230. Specifically, as shown in FIG. 9, the rotary motor 243 protrudes upward in the vertical direction through an opening defined by the pair of second opposing frames 213 and 214, the pedestal member 230, and the connecting plate 224. .

  In particular, the rotation motor 243 is at a position opposite to the second end 231 b of the base portion 231 of the base member 230 via the rotation center line P. That is, the rotation motor 243 is displaced forward with respect to the base member 230. For this reason, compared with the case where the rotation motor 243 is disposed at a position shifted in the X direction with respect to the pedestal member 230, when the pedestal member 230 rotates, The part and the rotary motor 243 are less likely to interfere with each other.

  Here, as shown in FIG. 10, because the rotary motor 243 protrudes upward in the vertical direction, the components disposed closest to the ground in the rotary mechanism 240 are the fixed unit 241 and the rotary shaft 242. It is. A space S is formed between the fixed unit 241 and the like and the ground, that is, below the pedestal member 230 in the vertical direction. The height dimension of the space S is set higher than the height dimension of the power transmission unit 13. For this reason, at least a part of the power transmission unit 13 can be arranged in the space S. That is, the fixed unit 241 and the rotating shaft 242 are disposed below the pedestal member 230 in the vertical direction in a state where a space S in which the power transmission unit 13 can be disposed is formed between the fixed unit 241 and the rotating shaft 242.

  If attention is paid to the fact that the height dimension of the space S is defined by the height dimension of the leg frame 201, the height dimension of the leg frame 201 is higher than the height dimension of the power transmission unit 13. It can also be said that the height is set corresponding to the height of the fixed unit 241 so that is formed.

  As shown in FIG. 10, the initial position of the power transmission unit 13 is a position where a part of the power transmission unit 13 is accommodated in the space S. That is, in a state where the power transmission unit 13 is disposed at the initial position, a part of the power transmission unit 13 is disposed below the pedestal member 230 (fixed unit 241) in the vertical direction.

  Similar to the first embodiment, the pedestal member 230 is provided with a vertical frame 72 extending in the vertical direction. The vertical frame 72 is fixed to the opposite side of the base portion 231 to the first end portion 231a side to which the rotating shaft 242 is attached, that is, the second end portion 231b side where the extending portion 232 is provided. .

  The drive unit 82 is fixed to and supported by the vertical frame 72. As already described, the drive unit 82 is provided with the movable unit 81 and moves the movable unit 81 in the vertical direction. If attention is paid to the point that the movable unit 81 is attached to the drive unit 82 so as to be linearly movable and the drive unit 82 is fixed to the vertical frame 72, the vertical frame 72 and the drive unit 82 have the movable unit 81 ( It can also be said that the mounting portion 244 is mounted so as to be linearly movable (in the vertical direction). In this case, it can be said that the mounting portion 244 is installed on the base member 230.

  As shown in FIG. 10, in the Y direction, the movable portion 81 is disposed on the side opposite to the power transmission unit 13 side with respect to the attachment portion 244. That is, the power transmission unit 13 is disposed in front of the attachment portion 244, and the movable portion 81 is disposed behind the attachment portion 244.

  Correspondingly, the connecting member 92 whose one end 92 a is joined to the movable portion 81 is disposed on the opposite side (rear) to the power transmission unit 13 side with respect to the attachment portion 244. The connecting member 92 is joined to the power transmission unit 13 through the vertically lower portion of the pedestal member 230 while being bent by the guide roller unit 101. The phrase “joined to the power transmission unit 13 through the lower part of the pedestal member 230 in the vertical direction” means that the connecting member 92 is joined to the power transmission unit 13 in the space S below the pedestal member 230 in the vertical direction. And a mode in which the power transmission unit 13 is joined outside the space S.

  Here, as already described, in the connecting member 92, the extending direction one end portion 92 a is joined to the movable portion 81 and the extending direction other end portion 92 b is joined to the power transmission unit 13. The connecting member 92 has an extending direction one end 92a side extending in the vertical direction and an extending direction other end 92b side extending in the horizontal direction. In the connecting member 92, a part of the curved portion 92 c that curves from the horizontal direction toward the vertical direction upward as it extends from the extending direction other end portion 92 b side to the extending direction one end portion 92 a side is directly below the mounting portion 244 (vertical (Downward direction).

  Incidentally, as in the first embodiment, when the pedestal member 230 is rotated by the rotation mechanism 240, the attachment portion 244, the movable portion 81 attached to the attachment portion 244, and the connecting member 92 joined to the movable portion 81 are: The relative position with respect to the lower frame 200 is changed. Thereby, the power transmission unit 13 rotates around the rotation center line P of the base member 230, and the linear motion direction of the power transmission unit 13 is changed. In this case, because the movable portion 81, the attachment portion 244, and the power transmission unit 13 rotate integrally, the positional relationship between the movable portion 81, the attachment portion 244, and the power transmission unit 13 regardless of fluctuations in the linear movement direction of the power transmission unit 13. Will not change. That is, in the linear motion direction of the power transmission unit 13, the power transmission unit 13 is on one side (front) of the mounting portion 244, and the movable portion 81 is on the other side (rear). In the linear movement direction of the power transmission unit 13, the rotation center line P of the base member 230 is disposed on the power transmission unit 13 side with respect to the attachment portion 244.

  As shown in FIGS. 11 and 12, a housing case 250 for housing the cable 91 is provided on the opposite side of the vertical frame 72 from the drive unit 82 side. The housing case 250 has a cylindrical shape extending in the vertical direction. The cable 91 drawn out from the one end portion 92a in the extending direction of the connecting member 92 passes through the housing case 250, and from the hole 250a (see FIG. 13) formed around the lower end of the housing case 250 to the outside of the housing case 250. Has been pulled out.

  As shown in FIGS. 11 and 12, a slit 250 b extending in the vertical direction is formed on one side surface of the housing case 250. In addition, a counter plate 251 provided at a position facing the slit 250b with a predetermined interval is attached to the housing case 250.

  Here, the movable portion 81 is provided with a guide member 252 for guiding the cable 91 drawn from the one end portion 92 a of the connecting member 92. The guide member 252 is L-shaped when viewed from above in the vertical direction. One end of the guide member 252 is attached to the movable portion 81, while the other end extends to the housing case 250. The cable 91 is attached to the guide member 252 in a state along the guide member 252. The cable 91 is inserted into the slit 250 b through the gap between the opposing plate 251 and the housing case 250. Thereby, the cable 91 is accommodated in the accommodation case 250.

  Here, as shown in FIG. 13, the cable 91 is fixed at a plurality of fixing points B in the housing case 250. The cable 91 is sufficiently slack so that the portion passing through the slit 250b can move from the upper end to the lower end of the slit 250b.

  According to such a configuration, as indicated by a two-dot chain line in FIGS. 12 and 13, when the movable portion 81 linearly moves in the vertical direction, the guide member 252 moves in the vertical direction accordingly. In this case, the cable 91 attached to the guide member 252 also moves in the vertical direction. Thereby, even if the movable part 81 moves linearly, a tensile force is hardly applied to the cable 91, and the linear movement of the movable part 81 is not easily obstructed by the cable 91. Further, since the cable 91 is inserted into the slit 250b through the space between the counter plate 251 and the housing case 250, the cable 91 is restricted by the counter plate 251 from jumping out.

Next, the operation of this embodiment will be described.
A part of the curved portion 92 c is located immediately below the attachment portion 244. Thereby, the space immediately below the attachment portion 244 functions as an arrangement space for the curved portion 92c. Therefore, as in the first embodiment (see FIG. 6), the space of the power transmission device 11 occupying in the Y direction is small compared to the case where a part of the curved portion 92c is not located directly below the attachment portion 244.

According to this embodiment explained in full detail above, in addition to the effect of (1)-(9), there exist the following outstanding effects.
(10) A part of the curved portion 92c of the connecting member 92 is positioned directly below the attachment portion 244 to which the movable portion 81 is attached so as to be linearly movable. Thereby, size reduction of the power transmission apparatus 11 can be achieved through making effective use of the space immediately below the attachment portion 244.

  In particular, in the configuration in which the connecting member 92 is curved, an installation space for the curved portion 92c is required. In this case, if the curvature of the curved portion 92c of the connecting member 92 is increased to reduce the installation space, it is difficult to smoothly move the connecting member 92.

  On the other hand, according to the present embodiment, the space immediately below the mounting portion 244, which was a dead space in the first embodiment, can be used as an arrangement space for the curved portion 92c. The power transmission device 11 can be reduced in size while ensuring a space for the transmission.

  (11) The power transmission device 11 includes a pedestal member 230 provided at a position floating with respect to the ground and provided with a mounting portion 244, and a rotation mechanism 240 that rotates the pedestal member 230 with the vertical direction as the axial direction. ing. Thereby, by rotating the pedestal member 230, the mounting portion 244 (the vertical frame 72 and the drive portion 82 supported by the vertical frame 72) installed on the pedestal member 230 is rotated. Therefore, the movable part 81 attached to the attachment part 244 and the connecting member 92 joined to the movable part 81 rotate, and the power transmission unit 13 rotates. Therefore, the linear motion direction of the power transmission unit 13 in the horizontal direction can be changed.

  In such a configuration, a part of the rotation mechanism 240, specifically, the fixed unit 241 (and the rotation shaft 242) has a space S in which the power transmission unit 13 can be arranged between the ground member 230 and the ground member 230. It is arranged vertically below. As a result, the power transmission device 11 can be further reduced in size through the arrangement of the power transmission unit 13 in the space S.

  (12) In particular, in the linear motion direction of the power transmission unit 13, the rotation center line P of the base member 230 (power transmission unit 13) is disposed on the power transmission unit 13 side with respect to the attachment portion 244. Thereby, the rotation center line P and the power transmission unit 13 are approaching. Therefore, the rotation distance of the power transmission unit 13 required to become a desired linear motion direction can be shortened. Therefore, the space for changing the linear motion direction of the power transmission unit 13 can be reduced, and the power transmission device 11 can be further reduced in size in the linear motion direction of the power transmission unit 13.

  Further, as the vehicle C approaches the power transmission unit 13 in the Y direction, the change angle (target angle) in the linear motion direction for facing the power reception unit 23 of the vehicle C tends to increase. Then, the rotation distance of the power transmission unit 13 required to reach the target angle is likely to be long, and the power transmission unit 13 and the vehicle C are likely to interfere with each other. In this regard, in the present embodiment, since the rotation distance of the power transmission unit 13 required for the desired linear motion direction can be shortened, each unit 13 even when the vehicle C is parked close to the power transmission unit 13. , 23 can be suitably aligned.

  (13) The rotation mechanism 240 includes a rotation shaft 242 fixed to the base member 230 and a rotation motor 243 that rotates the rotation shaft 242. The rotary motor 243 is disposed at a position shifted from the pedestal member 230 when viewed from above in the vertical direction, and protrudes upward in the vertical direction from the pedestal member 230. Thereby, it can control that rotation motor 243 protrudes in the perpendicular direction downward. Therefore, it is possible to avoid interference between the power transmission unit 13 and the connecting member 92 and the rotary motor 243.

  (14) The rotating shaft 242 supports the pedestal member 230 on the first end portion 231a side which is the front end portion of the base portion 231. Thereby, the rotation center line P can be arranged on the power transmission unit 13 side while supporting the pedestal member 230 using the rotation shaft 242.

In addition, you may change each said embodiment as follows.
In each embodiment, the connecting member 92 has a cylindrical shape that accommodates the cable 91, but is not limited thereto. For example, it is good also as a structure which employ | adopts an elongate connection member as a whole by connecting several plate-shaped parts, and fixes the cable 91 to the connection member. In short, the specific shape of the connecting member is arbitrary as long as it moves as the movable portion 81 moves linearly.

In each embodiment, the cable 91 is accommodated inside the connecting member 92. However, the present invention is not limited to this, and the cable 91 may be fixed to the outside of the connecting member 92.
In each embodiment, the cable 91 is held (accommodated) by the connecting member 92. However, the configuration is not limited to this, and for example, the cable 91 may not be held by the connecting member 92.

  In each embodiment, the connecting member 92 can be bent in one direction. However, the connecting member 92 is not limited to this, and may not be bent. However, if attention is paid to space reduction in the horizontal direction, the connecting member 92 is preferably bendable.

  ○ In a situation where the power transmission unit 13 is linearly moved so as to be arranged below the power receiving unit 23 (for example, during charging), the position of the power transmission unit 13 is periodically or based on the position variation of the vehicle C. It is good also as a structure which performs fine adjustment. In this case, for example, the transmission efficiency may be calculated, and the distance and angle may be finely adjusted so as to increase the transmission efficiency.

  ○ When the controllers 14 and 25 are positions where information can be exchanged and the power receiving unit 23 is not disposed within the movable range of the power transmitting unit 13, the power supply side controller 14 It is good also as a structure which alert | reports that the power receiving unit 23 is not arrange | positioned in the range which the power transmission unit 13 can move. Thereby, it can be urged to move the vehicle C within the movable range of the power transmission unit 13.

  In each embodiment, the movable portion 81 is configured to be linearly movable in the vertical direction, but is not limited thereto, and may be deviated from the vertical direction. In short, the movable part 81 should just be able to move linearly in the direction intersecting the ground.

  Correspondingly, the longitudinal end portion 92a side of the connecting member 92 to which the movable portion 81 is connected may extend in a direction intersecting the ground. In short, it is sufficient that the linear movement direction of the movable portion 81 coincides with the extending direction on the one end portion 92a side in the longitudinal direction of the connecting member 92. That is, the movable portion 81 can move directly in a direction intersecting with the installation surface on which the power transmission unit 13 is installed, and the long connecting member 92 is connected to the movable portion 81 in one longitudinal end 92a. The side may extend in a direction intersecting with the installation surface, and the other end 92b in the longitudinal direction connected to the power transmission unit 13 may be curved so as to extend in a direction along the installation surface.

  As one aspect of the another example, for example, the linear motion slider 80 may be installed to be inclined in the Y direction with respect to the vertical direction. Then, the connecting member 92 may be disposed so as to be inclined in the Y direction so that the one end portion 92 a side in the longitudinal direction to which the movable portion 81 is connected in the connecting member 92 coincides with the linear movement direction of the movable portion 81. In this case, the curvature of the curved portion 92c of the connecting member 92 can be reduced.

  ○ In each embodiment, one end 92a in the longitudinal direction of the connecting member 92 is connected to the movable portion 81, and the other end 92b in the longitudinal direction of the connecting member 92 is connected to the power transmission unit 13. Not limited. For example, the connecting member 92 may be connected to the movable portion 81 at a first halfway position in the longitudinal direction, or may be connected to the power transmission unit 13 at a second halfway position in the longitudinal direction of the connecting member 92. Also good.

In the first embodiment, the rotary table 51 and the rotary motor 52 are provided as the rotary mechanism, but the present invention is not limited to this, and these may be omitted.
In addition, instead of (or in addition to) the rotation mechanism, a slide movement mechanism that slides the base member 60 along the two connection frames 44 and 45 may be provided.

  The axial direction of each coil 13a, 23a may correspond to the horizontal direction. In this case, the axial direction of the coils 13a and 23a may be set so that the power transmission units 13 are arranged in parallel with each other in a situation where the power transmission unit 13 is disposed directly below the power reception unit 23.

○ Although the power transmission device 11 was installed on the ground, it is not limited to this. In short, as long as the power transmission target (vehicle C) is installed, the installation location of the power transmission device 11 is arbitrary.
In the first embodiment, the control units 121 and 122 are separately provided. However, the control units 121 and 122 may be integrated, or the power controller 14 directly controls the drive unit 82 and the rotary motor 52. May be.

  The control main body of the drive part 82 and the rotary motor 52 is arbitrary. For example, the vehicle-side controller 25 may be configured to control the control units 121 and 122 by transmitting an operation command to the control units 121 and 122.

  In the first embodiment, the curtain 32a is provided on the side portion of the protruding housing portion 32. However, the curtain 32a is not limited thereto, and may be a shutter or the like. Moreover, the structure by which the side part is always open may be sufficient.

  In 2nd Embodiment, when the power transmission unit 13 is arrange | positioned in the initial position, although a part of power transmission unit 13 was arrange | positioned in the space S, all may be arrange | positioned. Further, the power transmission unit 13 may be disposed in front of the space S.

A rotary motor 243 may be arranged at the bottom of the fixed unit 241. In short, it is preferable that at least a part of the rotation mechanism 240 is disposed below the pedestal member 230 in the vertical direction.
In the second embodiment, the fixed unit 241 of the rotation mechanism 240 may be above the pedestal member 230 in the vertical direction. Further, the fixing unit 241 may be disposed on the side or the rear side of the base member 230. However, if attention is paid to bringing the rotation center line P and the power transmission unit 13 close to each other in the linear movement direction of the power transmission unit 13 and downsizing of the power transmission device 11, the fixed unit 241 is above the pedestal member 230 in the vertical direction or in the vertical direction. It is preferable that it is arranged below.

  In the second embodiment, the rotary motor 243 may be protruded downward in the vertical direction as in the first embodiment. In this case, the length of the leg frame 201 may be adjusted so that a space S is formed between the bottom surface of the rotary motor 243 and the ground.

  The position of the rotation center line P (the position of the rotation shaft 242) is on the first end 231a side of the base member 230, but is not limited to this and is arbitrary. For example, the second end portion 231b side of the base member 230 may be used. In this case, the rotating shaft 242 can suitably receive the load from the vertical frame 72.

The rotation motor 243 and the pedestal member 230 may be arranged so as to be shifted in the X direction when viewed from the upper side in the vertical direction.
The configuration for rotating the pedestal member 230 and the specific configuration for supporting the pedestal member 230 in a floating state are not limited to those shown in each embodiment, but are arbitrary.

  In the second embodiment, it is a part of the curved portion 92c that is located immediately below the attachment portion 244, but the entire curved portion 92c may be located. In short, it is preferable that at least a part of the curved portion 92c is located immediately below the attachment portion 244.

The driving unit 82 and the vertical frame 72 may be a single member.
(Circle) the structure (accommodation case 250 grade | etc.,) Which concerns on accommodation of the cable 91 shown in 2nd Embodiment is applicable to the power transmission apparatus 11 of 1st Embodiment.

  O Although the primary side capacitor was provided in the power transmission unit 13, and the secondary side capacitor was provided in the power receiving unit 23, you may abbreviate | omit these. In this case, magnetic field resonance is performed using the parasitic capacitances of the coils 13a and 23a.

  The resonance frequency of the resonance circuit of the power transmission unit 13 and the resonance frequency of the resonance circuit of the power reception unit 23 are set to be the same. However, the present invention is not limited to this, and may be different within a range where power transmission is possible. .

○ Magnetic field resonance is used to realize non-contact power transmission, but is not limited to this, and electromagnetic induction may be used.
The power transmission unit 13 may have a configuration including a resonance circuit including a primary side coil 13a and a primary side capacitor, and a primary side coupling coil coupled to the resonance circuit by electromagnetic induction. In this case, the resonant circuit is configured to receive high frequency power from the primary side coupling coil by electromagnetic induction. Similarly, the power receiving unit 23 has a resonance circuit including a secondary coil 23a and a secondary capacitor, and a secondary coupling coil coupled to the resonance circuit by electromagnetic induction, and uses a secondary coupling coil. The high frequency power may be taken out from the resonance circuit of the power receiving unit 23.

  The power transmission device 11 has been applied to charge the vehicle battery 22 mounted on the vehicle C, but is not limited thereto, and may be applied to other devices. For example, it may be applied to charge a battery of a mobile phone.

Next, a preferable example that can be grasped from each of the above embodiments and other examples will be described below.
(A) The power transmission unit is linearly moved between a first position and a second position that is further away from the movable part than the first position, and is disposed at the first position. The power transmission device according to any one of claims 1 to 7, further comprising a housing unit that houses the power transmission unit.

  (B) In the linear motion direction of the power transmission unit, the power transmission unit is on one side of the attachment portion, the movable portion is on the other side of the attachment portion, and the pedestal member is in the linear motion direction of the power transmission unit. The power transmission device according to claim 9, wherein the rotation center line is arranged on the power transmission unit side with respect to the attachment portion.

  (C) The mounting portion includes a mounting portion that is mounted in a state in which the movable portion can move linearly in the vertical direction, and the connecting member extends in the vertical direction at one end in the extending direction connected to the movable portion, and is connected to the power transmission unit. There is a curved portion that is curved from the horizontal direction upward in the vertical direction from the other end in the extending direction toward the one end in the extending direction so that the other end in the extending direction is connected in the horizontal direction. The power transmission unit moves in the horizontal direction along with the vertical movement of the movable part, and the power transmission unit is provided on one side of the attachment part in the linear movement direction of the power transmission unit. The power transmission device according to any one of claims 1 to 7, wherein the movable portion is provided on the other side of the attachment portion, and at least a part of the curved portion is disposed vertically below the attachment portion. .

  DESCRIPTION OF SYMBOLS 10 ... Non-contact electric power transmission apparatus, 11 ... Power transmission apparatus, 12 ... High frequency power supply, 13 ... Power transmission unit, 13a ... Primary side coil, 14 ... Power supply side controller, 21 ... Power receiving apparatus, 23 ... Power reception unit, 23a ... Secondary Side coil 51 ... Rotary table 72 ... Vertical frame 80 ... Linear motion slider 81 ... Movable part 82 ... Drive part 83 ... Guide rail 91 ... Cable 92 ... Connecting member 92c ... Curved part 101 ... Guide roller unit, 111, wheel, 230, pedestal member of the second embodiment, 240, rotating mechanism, 243, rotating motor, 244, mounting portion, S, space.

Claims (10)

An AC power supply that outputs AC power;
A power transmission unit having a primary coil;
In a power transmission device that transmits the AC power in a non-contact manner to a power receiving device having a secondary side coil,
A movable part that can move directly;
A connecting member connected to the movable part and the power transmission unit;
With
The power transmission unit, wherein the power transmission unit moves linearly with the movement of the movable part.   The power transmission device according to claim 1, wherein the movable portion is capable of linear movement in a vertical direction.   3. The power transmission device according to claim 2, wherein the connecting member has one end connected to the movable portion extending in a vertical direction and the other end connected to the power transmission unit extending in a horizontal direction.   The power transmission device according to any one of claims 1 to 3, wherein the power transmission unit includes wheels.   The power transmission device according to any one of claims 1 to 4, further comprising: a rotation mechanism that rotates the movable unit and the power transmission unit with a direction orthogonal to an installation surface on which the power transmission unit is installed as an axial direction. A cable that is connected to the AC power source and the power transmission unit and that transmits the AC power,
The power transmission device according to claim 1, wherein the connecting member holds the cable.   The power transmission device according to claim 6, wherein the connecting member accommodates the cable. An AC power supply that outputs AC power;
A power transmission unit having a primary coil;
In a power transmission device that transmits the AC power in a non-contact manner to a power receiving device having a secondary side coil,
Moving parts;
An attachment part to which the movable part is attached so as to be linearly movable;
A connecting member in which one end portion in the extending direction is joined to the movable portion and the other end portion in the extending direction is joined to the power transmission unit;
With
The connecting member extends in the vertical direction at one end portion in the extending direction, extends in the horizontal direction at the other end portion in the extending direction, and extends from the horizontal direction toward the one end portion in the extending direction from the other end portion in the extending direction. A power transmission device characterized in that at least a part of a curved portion curved upward in the vertical direction is located immediately below the mounting portion. A pedestal member provided at a position floating with respect to the installation surface on which the power transmission unit is installed, and the mounting portion is installed;
A rotation mechanism for rotating the pedestal member with the vertical direction as the axial direction;
With
The power transmission according to claim 8, wherein at least a part of the rotation mechanism is disposed vertically below the pedestal member in a state where a space in which the power transmission unit can be disposed is formed between the rotation mechanism and the installation surface. machine. The rotation mechanism includes a rotation motor used to rotate the base member,
The power transmission device according to claim 9, wherein the rotary motor is disposed at a position shifted from the pedestal member when viewed from above in the vertical direction, and protrudes upward in the vertical direction from the pedestal member.