JP2010283982A - Device for movement of power transmission coil in non-contact charger - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a moving device that moves a power transmission coil to a position at which a power receiving coil can efficiently be charged irrespective of a position of an electronic apparatus containing the power receiving coil at a non-contact charger, and can achieve a reduction of cost and the thinning of size by reducing the number of part items. <P>SOLUTION: The moving device is constituted of an X-direction moving mechanism which slides a plate-shaped X table to an X direction, a Y-direction moving mechanism which slides a T-figured plate-shaped Y table to an Y direction at an upper part of the X table, a power transmission coil support base to which the power transmission coil attached to an X-direction member of the Y table to be slidable to the X direction is supported, a connecting means of the coil support base which moves the power transmission coil support base to the X direction, and can also move it in the Y direction, a detection sensor which detects a position of the power receiving coil of the electronic apparatus, and an operation control circuit which operates the moving mechanism in the X direction and the moving mechanism in the Y direction for moving the power transmission coil to a position detected by the detection sensor. <P>COPYRIGHT: (C)2011,JPO&INPIT

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.
Further, 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 contact charger, and there is a drawback that the charging efficiency decreases if the position is slightly shifted. The latter is complicated in structure and high in cost. It was easy and 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. To provide a power transmission coil moving device of a non-contact charger that can perform wiring of a power transmission coil without considering interference with other parts, and can reduce the number of parts to reduce cost and thickness. It is an object.

  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 provides a base plate, a plate-like X table attached to the base plate so as to be slidable in the X direction, and provided with guide rails in the Y direction, An X-direction moving mechanism that slides the X-table attached to the outer base plate in the X-direction by the driving force of the X-axis control motor, and an upper portion of the X-table without blocking the movement of the X-table. A T-shaped Y-table Y table slidably mounted in the Y direction and the Y table mounted on the base plate outside the Y table are slid in the Y direction by the driving force of the Y-axis control motor. A Y-direction moving mechanism to be moved; a power transmission coil support that supports a power transmission coil that is slidably mounted in the X direction on the X direction member of the Y table; The coil support base connecting means for moving the base in the X direction by the movement of the X table in the X direction and also enabling the movement in the Y direction by the guide rail of the X table, and the power transmission coil supported by the coil support base Detecting the receiving coil position of an electronic device having a case body attached to the base plate so as to cover the moving mechanism in the X direction, the moving mechanism in the Y direction, and the like, and a receiving coil mounted on the case body A detection sensor provided in the case body that can be operated, and an operation control circuit that operates the X-direction movement mechanism and the Y-direction movement mechanism that move the power transmission coil to a position detected by the detection sensor; Constitutes a moving device for the power transmission coil of the non-contact charger.

As is clear from the above description, the present invention has the following effects.
(1) The power transmission coil support that supports the power transmission coil is moved in the X direction by moving the X table in the X direction, and is moved in the Y direction while maintaining the position in the X direction by moving the Y table in the Y direction. The X-direction moving mechanism and the Y-direction moving mechanism attached to the base plate outside the X table and the Y table can be moved, so that the X-direction moving mechanism and the Y-direction moving mechanism overlap with each other as in the prior art. As a result, it is possible to prevent a problem that the moving device is thick and to reduce the thickness.
(2) Since a plate-like X table and a plate-like Y table are used, it is possible to reduce the thickness and size of the table and to assemble these components by simply stacking them in sequence. The process can be simplified and the manufacturing cost can be reduced.
(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) According to the above (3), since the power transmission coil is moved in the X direction and the Y direction, the interference between the wiring for supplying power to the power transmission coil and other components can be efficiently prevented.
(5) Claims 2, 3, and 4 can provide the same effects as the above (1) to (4).

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 only of the Y direction of the 1st form for implementing this invention. Explanatory drawing of the movement state of the X direction of the 1st form for implementing this invention, and a Y direction. Explanatory drawing of the electric power feeding method to the power transmission coil of the 1st form for implementing this invention. Explanatory drawing of the origin search of the 1st form for implementing this invention. The top view of the use condition of the 2nd form for implementing this invention. The disassembled perspective view of the use condition of the 2nd form for implementing this invention. The top view of the state which removed the case body of the 2nd form for implementing this invention. The top view of the use condition of the 3rd form for implementing this invention. The disassembled perspective view of the use condition of the 3rd form for implementing this invention. The top view of the state which removed the case body of the 3rd form for implementing this invention. The top view of the use condition of the 4th form for implementing this invention. The disassembled perspective view of the use condition of the 4th form for implementing this invention. The top view of the state which removed the case body of the 4th form for implementing this invention.

  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. 10, reference numeral 1 can charge a non-contact electronic device such as a mobile phone, a camera, a PDA, or a portable electronic terminal with a built-in power receiving coil. The power transmission coil moving device 1 of the non-contact charger according to the present invention includes a shallow plate-shaped circular base plate main body 2 and an inner bottom surface of the base plate main body 2. A base plate 4 having bar-shaped X-direction slide rails 3 and 3 projecting inwardly in parallel at a predetermined interval and also functioning as an X table support plate, and the X-direction slide rails 3 and 3 of the base plate 4 A plate-like X table body 5 formed with a rear end portion that slides in the X direction along the width and a tip portion formed in a substantially mountain shape with a small width, provided on the bottom surface of the X table body 5, Slide rail 3, 3 X table 7 composed of rollers 6, 6, 6 that can be smoothly rolled in the X direction along with the rack 8 formed at the rear end of the X table body 5 of this X table 7, this rack 8 A pulse motor fixed to the base plate 4 at the outer position of the guide rail 3 in the X direction with a gear 9 meshing with the gear 9 and a drive gear 10 meshing with the gear 9 attached to the drive shaft 11. The X table 7 is composed of an X direction moving mechanism 14 for sliding the X table 7 comprising the X axis control motor 13 in the X direction, and a plurality of bolts 16, 16, 16 via spacers 15 on the base plate 4. 7 is attached so as not to disturb the movement of the X-axis control motor 13 and the X-axis control motor 13 through-hole 18 for mounting the X-axis control motor or the Y-axis described later. A Y-table support plate main body 20 having a through-hole 19 for attaching a Y-axis control motor of the control motor, and a bar-like shape that protrudes upward in parallel at predetermined intervals at both ends of the through-hole 17 of the Y-table support plate main body 20. A Y-table support plate 22 comprising Y-direction slide rails 21 and 21, and a T-shaped plate-like plate that slides in the Y-direction along the Y-direction slide rails 21 and 21 of the Y-table support plate 22 Y comprising a Y table body 23 and rollers 24, 24, 24 provided on the bottom surface of the Y table body 23 and capable of smoothly rolling in the Y direction along the slide rails 21, 21 in the Y direction. A table 26, a rack 26 formed on the outer surface of the Y-direction member 23a of the Y table body 23 of the Y table 25, a gear 27 meshing with the rack 26, and the teeth A Y-axis control motor 30 using a pulse motor fixed to the base plate 4 with screws 12 and 12 on the outer side of the slide rail 21 in the Y direction, and a drive gear 28 that meshes with the vehicle 27 is attached to the drive shaft 29. And a Y-direction moving mechanism 31 for sliding the Y table 25 in the Y direction, and a power transmission coil 32 attached to the X direction member 23b of the Y table body 23 of the Y table 25 so as to be slidable in the X direction. A supported power transmission coil support base 33 and a support base guide rail 34 formed in the Y direction substantially at the center of the X table body 5 of the X table 7 to guide the power transmission coil support base 33 in the Y direction. Engaging with the support guide rail 34, the power transmission coil support 33 is moved in the X direction by the X direction moving mechanism 14 and moved in the Y direction. The connecting means 36 of the coil support base composed of the engagement piece 35 formed on the power transmission coil support base 33, moved in the Y direction by the structure 31, the X-direction movement mechanism 14, the Y-direction movement mechanism 31 and the like. A circular case body 39 attached to the base plate 4 via a protective cover 37 so as to cover the position, and the position of the power receiving coil of an electronic device incorporating the power receiving coil mounted on the case body 39 is detected. The X direction moving mechanism 14 and the Y direction moving mechanism 31 are operated to the detection sensor 40 provided in the case body 39 and to the position detected by the detection sensor 40. In order to move the power transmission coil support 33, the operation control of the X-axis control motor 13, the operation control of the Y-axis control motor 30, and the power supply control to the power transmission coil 32 are performed. A substrate 42 provided with a control circuit 41, an X-axis cable 44 for connecting the X-axis control signal output connector 43 provided on the substrate 42 and the X-axis control motor 13, and a Y-axis provided on the substrate 42 A Y-axis cable 46 connecting the control signal output connector 45 and the Y-axis control motor 30, a power transmission coil energization output connector 47 provided on the substrate 42, and a power transmission coil energization input provided on the power transmission coil support 33. Connected to the connector 49, provided in the Y-direction feeding cable 48 that moves following the Y-direction when the power transmission coil support 33 moves in the Y-direction, and the Y-table 25 located at the right end of the Y-table body 23. The feeding direction is changed by the cylindrical guide member 25A, and the power feeding cable in the X direction moves following the power transmission coil support base 33 when it moves in the X direction. A Y-direction position detection sensor 51 such as a magnetic sensor or an optical sensor that is turned on when the Y table 25 provided on the substrate 42 is located at the origin, and the X table provided on the substrate 42. 7 is composed of an X-direction position detection sensor 53 urged outward by an elastic bar member 52 using a magnetic sensor, an optical sensor, or the like that is turned ON when 7 is located at the origin.

  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. 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.

  If the X-axis control motor 13 and the Y-axis control motor 30 are driven simultaneously, the power transmission coil support base 33 can be moved in an oblique direction as shown in FIG.

[Different forms for carrying out the invention]
Next, different modes for carrying out the present invention shown in FIGS. 11 to 19 will be described. In the description of the 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. 11 to 13 is mainly different from the first embodiment for carrying out the present invention in that the X-axis control motor 13 performs forward / reverse rotation. The X-direction moving mechanism 14A provided with the X-axis screw shaft 54 and the threaded piece 55 screwed with the X-axis screw shaft 54 at the rear end of the X table 7 and the Y-axis control motor 30 A Y-direction moving mechanism 31A provided with a reversely rotated Y-axis screw shaft 56 and provided with a threaded piece 57 screwed to the Y-axis screw shaft 56 at the rear end portion of the Y table 25. The first embodiment for carrying out the present invention is applied to the power transmission coil moving device 1A of the non-contact charger configured using the X-direction moving mechanism 14A and the Y-direction moving mechanism 31A. Similar effects can be obtained.

  The third embodiment for carrying out the present invention shown in FIGS. 14 to 16 is mainly different from the first embodiment for carrying out the present invention in that the base plate 4 near the end of the X table 7. The X-axis belt 58 reciprocally moved in the X direction by the X-axis control motor 13 provided in the X-axis, and the X-axis moving mechanism 14B by the X-axis attachment 59 for attaching the end of the X table 7 to the X-axis belt 58. The Y-axis belt 60 is configured to reciprocate in the Y direction by a Y-axis control motor 30 provided on the base plate 4 near the end of the Y table 25, and the end of the Y table 25 is attached to the Y-axis belt 60. The movement of the power transmission coil of the non-contact charger constituted by using the movement mechanism 14B in the X direction and the movement mechanism 31B in the Y direction in that the movement mechanism 31B in the Y direction is constituted by the Y axis attachment 61 to be attached. Even in apparatus 1B, Same effect as the first embodiment for implementing the present invention is obtained.

  The fourth embodiment for carrying out the present invention shown in FIGS. 17 to 19 is mainly different from the first embodiment for carrying out the present invention in that the base plate 4A, the Y table support plate 22A, and the protection In order to implement the present invention, the moving device 1C for the power transmission coil of the non-contact charger having the quadrangular shape as described above is used in that the cover 37A and the case body 39A are formed in a quadrangular shape. The same effect as the first embodiment can be obtained.

  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, and the control is performed. Any motor that can do this can be used.

  Moreover, although what provided the rollers 6, 6, 6 in the X table 7 and what provided the rollers 24, 24, 24 in the Y table 25 were demonstrated, it can change to these rollers and provide a sliding plate. Further, in order to make the movement of the power transmission coil support base 33 smooth, a roller is provided on the sliding part between the power transmission coil support base 33 and the X table 7 or the sliding part between the power transmission coil support base 33 and the Y table 25. A member that enhances slidability such as a sliding plate or a lubricant can also be provided.

  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, 1B, 1C: a moving device for a power transmission coil of a non-contact charger,
2: Base plate body, 3: Slide rail in X direction,
4, 4A: Base plate, 5: X table body,
6: Roller, 7: X table,
8: Rack, 9: Gear,
10: Drive gear, 11: Drive shaft,
12: Screw, 13: X-axis control motor,
14, 14A, 14B: X-direction moving mechanism,
15: Spacer, 16: Bolt,
17: through hole,
18: X-axis control motor mounting through hole,
19: A through hole for mounting the Y-axis control motor,
20: Y table support plate main body, 21: Slide rail in Y direction,
22, 22A: Y table support plate,
23: Y table body, 24: Roller,
25: Y table, 25A: Guide member,
26: rack, 27: gear,
28: Drive gear, 29: Drive shaft,
30: Y-axis control motor,
31, 31A, 31B: Y-direction moving mechanism,
32: Power transmission coil, 33: Power transmission coil support,
34: Support base guide rail, 35: Engagement piece,
36: Connection means for coil support, 37: Protective cover,
39: Case body, 40: Detection sensor,
41: Operation control circuit, 42: Substrate,
43: X-axis control signal output connector,
44: X-axis cable,
45: Y-axis control signal output connector,
46: Y-axis cable,
47: Power transmission coil energization output connector,
48: Y direction feeding cable,
49: Power transmission coil energization input connector,
50: X direction feed cable,
51: Y direction position detection sensor, 52: Elastic bar member,
53: X direction position detection sensor, 54: X axis screw shaft,
55: screwed piece, 56: Y-axis screw shaft,
57: screwed piece, 58: X-axis belt,
59: X-axis fixture, 60: Y-axis belt,
61: Y-axis fixture.

Claims (4)

A base plate, a plate-like X table attached to the base plate so as to be slidable in the X direction and provided with a guide rail in the Y direction, and the X attached to the base plate outside the X table An X-direction moving mechanism that slides the table in the X direction by the driving force of the X-axis control motor, and the X table is attached to the upper portion of the X table so as to be slidable in the Y direction without blocking the movement of the X table. A T-shaped plate-like Y table, a Y-direction moving mechanism for sliding the Y table attached to the base plate outside the Y table in the Y direction by the driving force of the Y-axis control motor, and the Y A power transmission coil support that supports a power transmission coil that is slidably mounted in the X direction on the X direction member of the table, and moves the power transmission coil support in the X direction of the X table. Coil supporting base connecting means for moving in the X direction and also allowing movement in the Y direction by the guide rail of the X table, the power transmission coil supported by the coil supporting base, the moving mechanism in the X direction, A case body attached to the base plate so as to cover a moving mechanism and the like, and a power receiving coil position of an electronic device including a power receiving coil mounted on the case body are provided in the case body capable of detecting the power receiving coil position. A non-contact charger comprising: a detection sensor; and an operation control circuit for operating the X-direction movement mechanism and the Y-direction movement mechanism for moving the power transmission coil to a position detected by the detection sensor. Power transmission coil moving device. The X-direction moving mechanism includes an X-direction rack formed at an end of the X-table, an X-axis control motor fixed to a base plate at an outer portion of the X-table where the X-direction rack is formed, The Y-axis moving mechanism is formed at the end of the Y-direction member of the Y table. The X-axis pinion is fixed to the drive shaft of the X-axis control motor and meshes with the X-direction rack. A Y-axis rack, a Y-axis control motor fixed to the base plate on the outer portion of the Y table where the Y-direction rack is formed, and a Y-axis fixed to the drive shaft of the Y-axis control motor 2. The apparatus for moving a power transmission coil of a non-contact charger according to claim 1, comprising a gear that meshes with the pinion and meshes with the rack in the Y direction. The X-direction moving mechanism has an X-axis screw shaft whose X-axis is centered on the base plate at the end of the X-table, and an X-axis fixed to the base plate that rotates the X-direction screw shaft forward and backward. A control motor and an X-direction screwing piece attached to the end of the X table to be screwed to the X-direction screw shaft are configured, and the Y-direction moving mechanism is pivoted on the base plate at the end of the Y table. A Y-axis screw shaft whose center is the Y-direction, a Y-axis control motor fixed to the base plate for rotating the Y-direction screw shaft forward and backward, and a Y table screwed to the Y-direction screw shaft The moving device of the power transmission coil of the non-contact charger according to claim 1, comprising a Y-direction threaded piece provided at an end portion. The X-direction moving mechanism includes an X-axis belt that reciprocates in the X direction by an X-axis control motor provided on a base plate near the end of the X table, and an X-axis fixture that attaches the end of the X table to the X-axis belt. The Y-direction moving mechanism is a Y-axis belt that reciprocates in the Y direction by a Y-axis control motor provided on a base plate near the end of the Y table, and the end of the Y table on the Y-axis belt. The apparatus for moving a power transmission coil of a non-contact charger according to claim 1, comprising: a Y-axis attachment for attaching the battery.

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