JP5503436B2 - Non-contact charger power transmission coil moving device - Google Patents

Description

  The present invention relates to a power transmission coil of a non-contact charger that moves a power transmission coil to a position detected by a detection sensor and charges an electronic device incorporating a power reception coil such as a mobile phone, a camera, a PDA, or a portable electronic terminal in a non-contact manner. It relates to a mobile device.

  Conventionally, a non-contact charger that charges a power receiving coil of an electronic device in a non-contact manner cannot be efficiently charged unless the power receiving coil of the electronic device is accurately positioned in a power transmission coil portion of the non-contact charger.

  For this reason, the power transmission coil portion of the non-contact charger is fixedly installed, and the power reception coil of the electronic device is accurately positioned on the power transmission coil portion to perform charging.

  In addition, it is considered by the present applicant that the position of the power receiving coil of the electronic device is detected by a detection sensor, and the power transmitting coil is moved to the detection position by using a planetary gear. It is difficult to accurately position the power receiving coil of the electronic device in the power transmitting coil portion of the non-contact charger, and there is a drawback that the charging efficiency decreases if the position is slightly shifted. The latter has a complicated structure and high cost. However, it was difficult to cope with further thinning.

JP 2009-89464 A JP2008-301553 JP-A-9-190938

  In view of the above-described conventional drawbacks, the present invention can move the power transmission coil to a position where the power reception coil can be efficiently charged even if the electronic device having the power reception coil built in the non-contact charger is easily positioned. In addition, the wiring of the power transmission coil can also be performed without considering interference with other parts, the number of parts can be reduced, the cost can be reduced and the thickness can be reduced, and the amount of movement of the power transmission coil can be increased. It aims at providing the moving device of the power transmission coil of a charger.

The above and other objects and novel features of the present invention will become more fully apparent when the following description is read in conjunction with the accompanying drawings.
However, the drawings are for explanation only and do not limit the technical scope of the present invention.

  In order to achieve the above object, the present invention moves a plate-like X table movably attached to a base plate in the X direction by a movement mechanism in the X direction and supports a Y table provided on the base plate. In a moving device for a power transmission coil of a non-contact charger capable of moving a plate-like Y table movably attached to a plate in the Y direction by a Y direction moving mechanism, the X direction moving mechanism is an X table moving mechanism. An X-direction rack formed at an end portion and attached to both side portions of the X table so as to be connected to the X-direction rack, and when the X table is positioned on both side portions in the X direction, A pair of X-direction rotating racks that rotate inward with guide rails provided on the base plate and a base plate on the outer portion of the X table where the X-direction rack is formed. An X-axis control motor and a gear that meshes with an X-axis pinion fixed to a drive shaft of the X-axis control motor and meshes with the X-direction rack and a pair of X-direction rotating racks. The Y movement rack is attached to both sides of the Y table so as to be connected to the Y direction rack formed at the end of the Y table, and both sides of the Y table in the Y direction. When positioned on the side, a pair of Y-direction rotating racks whose tip end side is rotated inward by guide rails provided on the Y-table support plate, and the outer side of the Y table where the Y-direction rack is formed The Y-axis control motor fixed to the base plate of the part and the Y-axis pinion fixed to the drive shaft of the Y-axis control motor mesh with the rack in the Y-axis direction and a pair of Y-axis directions. Constitute a moving device of the power transmission coils of a contactless charger in a gear meshing with the rotating rack.

As is clear from the above description, the present invention has the following effects.
(1) According to claim 1, when a pair of X-direction rotating racks attached to both sides of the X-direction rack are positioned on both sides in the X-direction, the X table can be rotated inside the tip. Therefore, the X table can be moved greatly in the X direction.
Further, when the Y table is mounted on both sides of the Y-direction rack and a pair of Y-direction rotating racks are positioned on both sides of the Y-direction, the tip portion can be rotated inward. It can be moved greatly in the Y direction.
(2) Since a plate-like X table and a plate-like Y table are used, it is possible to reduce the thickness and size.
(3) The power transmission coil can be moved in the X direction and the Y direction by the movement mechanism in the X direction and the movement mechanism in the Y direction.
Therefore, the power transmission coil can be quickly moved to the optimum position, and movement control of the power transmission coil can be easily performed.
(4) Since the power transmission coil is moved in the X direction and the Y direction according to (3), the wiring for supplying power to the power transmission coil can efficiently prevent interference with other components.

Explanatory drawing of the use condition of the 1st form for implementing this invention. The disassembled perspective view of the use condition of the 1st form for implementing this invention. The top view of the state which removed the case body of the 1st form for implementing this invention. Sectional drawing which follows the 4-4 line of FIG. Sectional drawing which follows the 5-5 line of FIG. Explanatory drawing of the movement state only to the X direction of the 1st form for implementing this invention. Explanatory drawing of the movement state of the edge part side of a X direction. Explanatory drawing of the movement state only to a Y direction. Explanatory drawing of the movement state of the edge part side of a Y direction. Explanatory drawing of the movement state of a X direction and a Y direction. Explanatory drawing of the electric power feeding method to a power transmission coil. Explanatory drawing of an origin search. The disassembled perspective view of the 2nd form for implementing this invention. Explanatory drawing of a base board and X table. Explanatory drawing of a Y table support plate and a Y table.

  Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings.

  In the first embodiment for carrying out the present invention shown in FIG. 1 to FIG. 12, 1 is capable of charging an electronic device such as a mobile phone, a camera, a PDA, and a portable electronic terminal with a built-in power receiving coil without contact. In the non-contact charger power transmission coil moving device according to the present invention, the non-contact charger power transmission coil moving device 1 has a rectangular base plate body 2 and an upper surface so as to be parallel to the upper surface of the base plate body 2. Both ends formed on the upper surface of the base plate main body 2 at the outer part of the X-direction slide rail 3 of the bar-shaped X-direction slide rails 3 and 3 and the X-direction slide rails 3 and 3 projecting. A base comprising an X-direction guide rail 56 in which an excluding portion is parallel to the one X-direction slide rail 3 and both end portions are bent inwardly in an arcuate shape. Board 4 A plate-like X table body 5 having a rear end portion that slides in the X direction along the X-direction slide rails 3 and 3 of the base plate 4 and a tip portion having a small width, and the X table. Formed on the bottom surface of the main body 5 and on the center bottom surface on the rear end side of the X table main body 5 and the guide grooves 6 and 6 that smoothly move in the X direction along the slide rails 3 and 3; The X-direction engaging piece 57 that engages with the X-direction guide rail 56, the X-direction rack 8 formed at the rear end of the X-table body 5, and the X-direction rack 8 so as to be connected A pair of Xs, which are pivotally supported by pivot pins 58, 58 on both sides of the rear portion of the X table body 5 and engaged with the guide rails 56 in the X direction, are formed on the bottom surface on the tip side. Direction rotating racks 60, 60 A gear 7 meshing with the table 7, the X-direction rack 8 and the pair of X-direction rotating racks 60, 60, and a pinion 10 meshing with the gear 9 are attached to the drive shaft 11, and the base plate 4 is screwed An X-direction moving mechanism 14 for sliding the X-table 7 composed of an X-axis control motor 13 using a pulse motor fixed at 12 and 12 in the X-direction, and a plurality of the base plate 4 via spacers 15. Of the X-axis control motor 13 and the rectangular through hole 17 attached so as not to disturb the movement of the X-table 7 with the bolts 16, 16, 16, 16. 18, a Y table support plate main body 20 in which a Y-axis control motor mounting notch 19 for mounting a Y-axis control motor, which will be described later, is formed, and a through hole 1 of the Y table support plate main body 20. 7 of the bar-shaped Y-direction slide rails 21, 21 formed so as to protrude upward so as to be parallel to both ends of the Y-direction slide rail 21, one of the Y-direction slide rails 21, 21. The inner guide part in the Y direction in which the part excluding both ends formed on the upper surface of the Y table support plate main body 20 at the outer part is parallel to the slide rail 21 in the Y direction and both ends bend inward in an arc shape. A Y-table support plate 22 formed of a groove-shaped guide rail 62 in the Y direction in which 61 and 61 are formed, and slides in the Y direction along the Y-direction slide rails 21 and 21 of the Y table support plate 22. It is possible to smoothly move in the Y direction along the T-shaped plate-like Y table main body 23 and the slide rails 21 in the Y direction provided on the bottom surface of the Y table main body 23. Guide grooves 24, 24, a Y-direction engagement piece 63 formed on a central bottom surface on the rear end side of the Y-table body 23, which engages with the Y-direction guide rail 62, and the Y-table body 23 A rack 26 in the Y direction formed at the rear end portion, and pivotally supported by pivot pins 64 and 64 on both sides of the rear portion of the Y table body 23 so as to be connected to the rack 26 in the Y direction, and on the tip end side A Y table 25 comprising a pair of Y-direction rotating racks 66, 66 with guide pins 65, 65 formed on the bottom surface engaged with the Y-direction guide rail 62, the Y-direction rack 26 and the pair. A Y-direction rotating rack 66, a gear 27 meshing with the 66, and a pinion 28 meshing with the gear 27 are attached to the drive shaft 29, and a pulse motor fixed to the base plate 4 with screws 12, 12 is used. A Y-direction moving mechanism 31 for slidably moving the Y-table 25 composed of the axis control motor 30 in the Y-direction and an X-direction member 23b of the Y-table main body 23 of the Y table 25 are attached to be slidable in the X-direction. A power transmission coil support 33 for supporting the power transmission coil 32 and a support guide for guiding the power transmission coil support 33 in the Y direction at the substantially central portion of the X table body 5 of the X table 7 in the Y direction. The rail 34 is engaged with the support base guide rail 34 to move the power transmission coil support base 33 in the X direction by the X direction moving mechanism 14 and is moved in the Y direction by the Y direction moving mechanism 31. The coil support base connecting means 36 including the engagement piece 35 formed on the power transmission coil support base 33, the X-direction moving mechanism 14, the Y-direction moving mechanism 31, etc. As described above, the position of the power receiving coil of the electronic device including the rectangular case body 39 attached to the base plate 4 via the protective covers 37 and 38 and the power receiving coil mounted on the case body 39 is determined. The generally used detection sensor 40 provided on the case body 39 that can be detected, and the power transmission coil 32 to the position detected by the detection sensor 40, the moving mechanism 14 in the X direction and the Y direction. The board 42 provided with the operation control circuit 41 that moves and positions the power transmission coil support 33 is operated, and the X-axis connector 43 of the board 42 and the X-axis control motor 13 are connected. An X-axis cable 44, a Y-axis cable 46 for connecting the Y-axis connector 45 of the board 42 and the Y-axis control motor 30, and a Y-direction control circuit of the board 42 are connected. A Y-direction power feeding cable 48 connecting the power receiving coil connector 47 and the power transmitting coil 32 connected to each other, and a power receiving coil connector 49 connected to the X direction control circuit of the substrate 42 and the power transmitting coil 32 are connected. An optical sensor photointerrupter that is turned on when the Y table 25 is located at the origin and straddles a feeding cable 50 in the X direction and a ring 27a formed by cutting out a part of the gear 27 attached to the substrate 42. A photo sensor interrupter which is turned on when the X table 7 straddling the ring 9a formed on the gear 9 attached to the substrate 42 and partly cut out of the ring 9a is located at the origin. X-direction position detection sensor 53 using a Y-table and the like, and a Y-table presser 54 that covers the rear end of the Y-table 25. That.

  When the electronic device (not shown) to be charged is placed on the case body 39, the moving device 1 for the power transmission coil of the non-contact charger configured as described above detects the position of the power receiving coil incorporated in the electronic device by the detection sensor 40. Then, the signal is input to the operation control circuit 41.

  When the detection signal of the detection sensor 40 is input to the operation control circuit 41, the X-axis control motor 13 of the X-direction moving mechanism 14 is driven to move the X table 7 in the X direction as shown in FIG. At the same time, the Y-axis control motor 30 of the moving mechanism 31 in the Y direction is also driven to move the Y table 25 in the Y direction as shown in FIG. 7, and the power transmission coil support 33 on which the power transmission coil 32 is supported is The power receiving coil can be moved to a position where it can be charged efficiently.

  When the X table 7 moves in the direction of both ends in the X direction, the pair of rotating racks 60, 60 are guided by the X-direction inner guide portions 55, 55 of the X-direction guide rail 56 and rotated inward. The table 7 can be moved largely in the X direction.

  Further, when the Y table 25 is moved in the Y direction at both end portions, the pair of Y direction rotating racks 66 and 66 are guided by the Y direction inner guide portions 61 and 61 of the Y direction guide rail 62 to the inside. Since it rotates, the Y table 25 can be moved largely in the Y direction.

[Different forms for carrying out the invention]
Next, different modes for carrying out the present invention shown in FIGS. 13 to 15 will be described. In the description of different embodiments for carrying out the present invention, the same components as those in the first embodiment for carrying out the present invention are denoted by the same reference numerals, and redundant description is omitted.

  The second embodiment for carrying out the present invention shown in FIGS. 13 to 15 is mainly different from the first embodiment for carrying out the present invention in that the groove-shaped X-direction slide rails 3A and 3A are different. The base plate 4A on which the X-direction guide rails 56A having the groove-shaped X-direction inner guide portions 55A and 55A are formed, and the engaging pieces that engage with the X-direction slide rails 3A and 3A of the base plate 4A 67, 67 and an X table 7A having an X-direction engaging piece 57A for engaging with the X-direction guide rail 56A, a groove-shaped Y-direction slide rail 21A, 21A, and a groove-shaped Y-direction inner guide portion Y table support plate 22A on which Y-direction guide rail 62A having 61A, 61A is formed, and engagement pieces 68, 6 that engage with Y-direction slide rails 21A, 21A of Y table support plate 22A. The base plate 4A, the X table 7A, and the Y table support plate 22A configured in this way in that the Y table 25A having the Y-direction engaging piece 63A that engages with the 8 and Y-direction guide rails 62A is used. The same effect as that of the first embodiment for carrying out the present invention can be obtained even with the moving device 1A for the power transmission coil of the non-contact charger using the Y table 25A.

  In each of the embodiments of the present invention, the X-axis control motor 13 using the pulse motor and the Y-axis control motor 30 using the pulse motor have been described. However, the present invention is not limited to this. Any motor that can be controlled can be used.

  In addition, the Y-direction position detection sensor 51 and the X-direction position detection sensor 53 have been described using optical sensor photointerrupters, but the present invention is not limited to this, and a magnetic sensor Hall element or a mechanical switch may be used. it can.

  The present invention is used in an industry for manufacturing a moving device for a power transmission coil of a non-contact charger.

1, 1A: a moving device for a power transmission coil of a non-contact charger,
2: Base plate body 3, 3A: Slide rail,
4, 4A: Base plate, 5: X table body,
6: guide groove 7, 7A: X table,
8: rack in X direction, 9: gear,
10: Pinion, 11: Drive shaft,
12: Screw, 13: X-axis control motor,
14: X-direction moving mechanism, 15: Spacer,
16: Bolt, 17: Through hole,
18: Notch for mounting the X-axis control motor,
19: Notch for mounting Y-axis control motor,
20: Y table support plate body,
21, 21A: Y-direction slide rail,
22, 22A: Y table support plate,
23: Y table body, 24: Guide groove,
25, 25A: Y table, 26: Y direction rack,
27: Gear, 28: Pinion,
29: Drive shaft, 30: Y-axis control motor,
31: Y-direction moving mechanism, 32: Power transmission coil,
33: Power transmission coil support base, 34: Support base guide rail,
35: engagement piece, 36: connection means for coil support,
37, 38: protective cover, 39: case body,
40: detection sensor, 41: operation control circuit,
42: Board, 43: X-axis connector,
44: X-axis cable, 45: Y-axis connector,
46: Y-axis cable, 47: Power receiving coil connector,
48: Power supply cable, 49: Power receiving coil connector,
50: Feed cable in the X direction 51: Y direction position detection sensor,
53: X direction position detection sensor,
55, 55A: inner guide part in the X direction,
56, 56A: guide rails in the X direction,
57, 57A: engagement piece in X direction, 58: pivot pin,
59: guide pins, 60: rotating rack in X direction,
61, 61A: inner guide part in Y direction,
62, 62A: guide rails in the Y direction,
63: Y-direction engagement piece, 64: pivot pin,
65: guide pins, 66: rotating rack in Y direction.

Claims (1)

A plate-like X table movably attached to the base plate is moved in the X direction by an X-direction moving mechanism, and a plate-like X table movably attached to the Y table support plate provided on the base plate. In the power transfer coil moving device of the non-contact charger capable of moving the Y table in the Y direction by the Y direction moving mechanism, the X direction moving mechanism includes an X direction rack formed at an end of the X table. The X table is attached to both sides of the X table so as to be connected to the rack in the X direction, and when the X table is located on both sides in the X direction, the tip side is the inner side with a guide rail provided on the base plate. A pair of X-direction rotating racks that rotate in the direction, an X-axis control motor that is fixed to a base plate on the outer portion of the X table at the portion where the X-direction rack is formed, and this X-axis control A gear engaging with an X-axis pinion fixed to a drive shaft of the motor and meshing with the X-direction rack and a pair of X-direction rotating racks, and the Y-direction moving mechanism is an end of the Y table. A Y-direction rack formed on the Y-table and attached to both sides of the Y table so as to be connected to the Y-direction rack. A pair of Y-direction rotating racks that rotate inward with guide rails provided on the table support plate, and fixed to the base plate on the outer portion of the Y table where the Y-direction rack is formed A Y-axis control motor and a gear that meshes with a Y-axis pinion fixed to the drive shaft of the Y-axis control motor and meshes with the Y-axis rack and the pair of Y-axis rotating racks. A moving device for a power transmission coil of a non-contact charger, characterized in that:

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