JP2017121115A - measuring device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a measuring device capable of enhancing the measurement precision.SOLUTION: A measuring device includes a supply-side holding portion 21 for holding an electrode of a non-contact power supply device, a moving mechanism 23 for moving the supply-side holding portion 21, an output unit for outputting power to be supplied via the electrode, and a measuring unit for measuring the amount of measurement to be used for evaluation of the non-contact power feeding device under the state that electric power is supplied through the electrode. The supply-side holding portion 21 is formed of a non-conductive material, and the moving mechanism 23 is configured to be capable of moving the supply-side holding portion 21 along a moving surface parallel to an installation surface on which the moving mechanism 23 is mounted, and when the supply-side holding portion 21 is moved to all positions within a movable region D3 of the supply-side holding portion 21 along the moving surface and the supply side-side holding portion 21 is viewed in plan in the orthogonal direction orthogonal to the moving surface, members (25, 54, 63a, 63c, 65a, 65c, 66, 72a, 72c, 72e, 73, 81, 82) overlapping the supply-side holding portion 21 out of members constituting the moving mechanism are formed of non-conductive material.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a measuring apparatus that measures a measured quantity used for evaluating a non-contact power feeding apparatus.

  As this type of measurement apparatus, a test apparatus disclosed in Non-Patent Document 1 below is known. This test apparatus is a test apparatus for evaluating a non-contact power feeding device, and the first coil (Primary Coil) on the supply side and the second coil (Secondary Coil) on the power receiving side of the non-contact power feeding device are opposed to each other. In this state, the power is supplied from the first coil and the power received by the second coil can be measured. In this case, the efficiency and the like of the non-contact power feeding apparatus is evaluated by changing the position and orientation of each coil and measuring the power described above for each state of the position and orientation. For this reason, this test apparatus includes a positioning mechanism and can change the position and posture of each coil. Specifically, in the positioning mechanism of this test apparatus, the support portion that supports the first coil is configured to be movable in the XY direction, and in the rotation direction (θ direction) about an axis perpendicular to the XY plane. It is configured to be rotatable. In addition, the support portion that supports the second coil is configured to be movable in the Z direction. In this case, this positioning mechanism includes a motor that moves the support portion supporting the first coil in the XY direction and a motor that rotates the support portion in the θ direction, and the support portion is moved in the XYθ direction by the driving force of these motors. It is possible to change the position and posture of each coil by moving it.

INL Testing of Wireless Charging Systems [Searched on December 10, 2015], Internet <http://avt.inel.gov/pdf/prog_info/vss096Carlson2014.pdf>

  However, the above-described conventional test apparatus has the following problems to be improved. That is, in this test apparatus, a positioning mechanism is configured by including a motor that moves the support portion supporting the first coil (coil on the supply side) in the XY direction and a motor that rotates the support portion in the θ direction. On the other hand, in order to reduce the influence on the magnetic field generated by the first coil, it is preferable not to dispose a non-conductive material in the vicinity of the first coil (a member in the vicinity of the first coil is made of a non-conductive material). However, in this test apparatus, as described above, a motor (that is, a member made of a metal material) that moves and rotates the support portion that supports the first coil is disposed in the positioning mechanism. As a result, the magnetic field generated by the first coil is affected, and as a result, there is a problem that measurement accuracy may be reduced.

  The present invention has been made in view of such a problem to be improved, and a main object of the present invention is to provide a measurement apparatus capable of improving measurement accuracy.

  In order to achieve the above object, a measuring apparatus according to claim 1 is configured to output a power supplied via the electrode, a holding unit that holds the electrode of the non-contact power feeding device, a moving mechanism that moves the holding unit. And a measuring device that measures a measurement amount used for evaluation of the non-contact power feeding device in a state where electric power is supplied through the electrode, wherein the holding unit is non-conductive The moving mechanism is configured to be able to move the holding portion along a moving surface parallel to an installation surface on which the moving mechanism is installed, and a member of the moving mechanism. Of these, when the holding part is moved to all positions within the movable area of the holding part along the moving surface and the holding part is viewed in a plane perpendicular to the moving surface, the holding part Non-conductive material is a member that overlaps It has been made.

  The measuring device according to claim 2 is the measuring device according to claim 1, wherein an enlarged region obtained by enlarging the planar view region around the planar view region when the holding unit is planarly viewed in the orthogonal direction is defined. The moving mechanism moves the holding unit to all positions in the movable region, and when the enlarged region moving with the movement of the holding unit is viewed in plan in the orthogonal direction, the enlarged region A member overlapping with the non-conductive material is formed.

  The measuring apparatus according to a third aspect is the measuring apparatus according to the first or second aspect, wherein the moving mechanism includes a base portion installed with a top surface parallel to the installation surface, and a moving surface. A first moving part arranged on the upper surface of the base part so as to be movable in a first direction along the first moving part, and a first moving part movable in a second direction perpendicular to the first direction along the moving surface. A second moving unit disposed in the second moving unit, a third moving unit disposed in the second moving unit so as to be movable in the orthogonal direction, and a third moving unit rotatable in a rotation direction centered on the orthogonal direction. And a fourth moving part capable of fixing the holding part.

  According to a fourth aspect of the present invention, in the measurement apparatus according to the third aspect, the base portion is formed in a substantially rectangular frame shape, and the first moving portion is formed on the upper surface of the base portion. A pair of rails extending along one direction and disposed on a pair of edges facing each other, a plurality of sliders disposed on each rail, and a plurality of members connected in a substantially rectangular shape A frame that is formed and fixed to each slider, and a belt that extends along the second direction in the base portion and spans between a pair of edges facing each other to pull the frame. The second moving portion extends along the second direction of the members constituting the frame of the first moving portion. Disposed on a pair of members facing each other. A pair of rails, a plurality of sliders disposed on each rail, a first frame formed by connecting a plurality of members in a substantially rectangular shape and fixed to each slider, and along the orthogonal direction A plurality of struts erected on the first frame, and a second frame formed by connecting a plurality of members in a substantially rectangular shape and fixed to the front end of each strut so as to face the first frame And the first frame extending between the pair of members extending along the first direction and facing each other among the members constituting the frame of the first moving unit, Each column and a belt that pulls the second frame, and a drive unit that drives the belt, and the third moving unit includes the first frame and the second frame of the second moving unit. Bo arranged between A screw, and a frame formed by connecting a plurality of members in a substantially rectangular shape and supported by the support column of the second moving unit so as to be slidable along the orthogonal direction and fixed to the nut portion of the ball screw; A belt that is stretched over the shaft of the ball screw and rotates the shaft; and a drive unit that drives the belt; and the fourth moving unit is formed so that the holding unit can be attached thereto. A rotary table fixed to the frame of the third moving unit; a belt that spans between the rotary table and the third moving unit and rotates the rotary table; and a drive unit that drives the belt The belt of the first moving part, the first frame of the second moving part, and the members constituting the second frame along the first direction The extending member, the belt of the second moving part, the member of the third moving part constituting the frame, the member extending along the first direction, and the first Among the members constituting the frame of the three moving parts, the member to which the fourth moving part is fixed, the belt of the third moving part, the rotary table of the fourth moving part, The belt of the fourth moving part is formed of a nonconductive material.

  The measuring apparatus according to claim 5 is the measuring apparatus according to claim 4, wherein the base portion is attached to the frame having a frame in which columnar bodies are connected in a substantially rectangular shape and an opening in the center. And a plate body.

  According to the measuring apparatus of claim 1, the holding portion is formed of a non-conductive material, and at all positions in the movable region of the holding portion along the moving surface, among members constituting the moving mechanism. When the holding part is moved and the holding part is viewed in plan in the orthogonal direction perpendicular to the moving surface, the member that overlaps the holding part is formed of a non-conductive material, so that the moving mechanism is secured with sufficient strength. It is possible to surely prevent the displacement of the holding portion when moving the portion, and to sufficiently reduce the influence on the magnetic field generated by the electrode of the non-contact power feeding device. Therefore, according to this measuring apparatus, the measurement accuracy of the amount to be measured can be sufficiently improved.

  According to the measurement device of claim 2, an enlarged region in which the planar view region is enlarged around the planar view region when the holding unit is planarly viewed in the orthogonal direction is defined, and all positions in the movable region are defined. The holding portion is moved in the vertical direction, and when the enlarged region moving with the movement of the holding portion is viewed in plan in the orthogonal direction, the member overlapping the enlarged region is formed of a non-conductive material. Since the member positioned in a wider range than the configuration in which only the member that overlaps the holding portion when formed in a plan view is formed of the nonconductive material is formed of the nonconductive material, an electrode of the non-contact power feeding device is generated. As a result of further reducing the influence on the magnetic field, the measurement accuracy of the measured quantity can be further improved.

  According to the measuring device of claim 3, the base unit, the first moving unit movable in the first direction, the second moving unit movable in the second direction, and the second movable unit movable in the orthogonal direction. Since the moving mechanism is configured to include the three moving units and the fourth moving unit that can rotate in the rotation direction, the holding unit can be rotated by an arbitrary angle at an arbitrary position. A large number of measured amounts can be measured in different states and postures.

  According to a fourth aspect of the present invention, the belt of the first moving unit, the member extending along the first direction of the second moving unit, the belt of the second moving unit, and the third of the third moving unit. A member extending along one direction, a member to which the fourth moving unit in the third moving unit is fixed, a belt of the third moving unit, a rotary table of the fourth moving unit, and a belt of the fourth moving unit Are formed of a non-conductive material. That is, in this measuring apparatus, the number of members formed of a non-conductive material necessary to sufficiently reduce the influence on the magnetic field generated by the electrode of the non-contact power feeding apparatus is reduced. For this reason, according to this measuring apparatus, the fall of the intensity | strength of a moving mechanism by the number of members formed with a nonelectroconductive material increases can be prevented, and the intensity | strength of a moving mechanism can fully be raised.

  Further, according to the measuring apparatus of claim 5, the base part is configured by including a frame in which the columnar bodies are connected in a substantially rectangular shape, and a plate body having an opening at the center and attached to the frame. Thus, even if the base portion is formed of, for example, a high-strength metal material (that is, a non-conductive material), the member constituting the base portion is positioned at a portion that overlaps the holding portion when the holding portion is viewed in a plan view in the orthogonal direction. Therefore, it is possible to sufficiently reduce the influence on the magnetic field generated by the electrode of the non-contact power feeding device while ensuring sufficient rigidity of the base portion. Further, since the base portion is configured in this way, the thickness of the base portion can be suppressed thin (the height is low), and thus the moving mechanism can be sufficiently downsized as a whole.

1 is a configuration diagram showing a configuration of a measuring device 1. FIG. 3 is a perspective view of a holding device 2. FIG. 3 is an exploded perspective view of the holding device 2. FIG. FIG. 3 is an exploded perspective view showing configurations of a base body 30 and a first moving unit 31. FIG. 4 is an exploded perspective view showing configurations of a first moving unit 31 and a second moving unit 32. FIG. 4 is an exploded perspective view showing configurations of a second moving unit 32 and a third moving unit 33. FIG. 6 is an exploded perspective view showing configurations of a third moving unit 33 and a fourth moving unit. 3 is a plan view of a supply side holding unit 21 and a moving mechanism 23. FIG.

  Hereinafter, embodiments of a measuring apparatus will be described with reference to the accompanying drawings.

  First, the configuration of the measurement apparatus 1 shown in FIG. 1 as an example of the measurement apparatus will be described. The measurement apparatus 1 is a measurement apparatus that measures a measurement amount (for example, power supply efficiency or magnetic field) used for evaluation (performance evaluation) of a non-contact power supply apparatus (wireless power supply apparatus), for example, as shown in FIG. Further, the holding device 2, the output unit 3, the measurement unit 4, the operation unit 5, the storage unit 6, the display unit 7, and the control unit 8 are configured.

  The holding device 2 arbitrarily changes the position and posture of the supply-side coil 101 of the non-contact power supply device shown in FIG. 3 (relative position and posture of the non-contact power supply device with respect to the power-receiving coil 102 (see FIG. 3)). It is configured to be possible. Specifically, as illustrated in FIG. 2, the holding device 2 includes a supply side holding unit 21, a power receiving side holding unit 22, a moving mechanism 23, a frame 24, and a plurality of cable carriers 25. In this case, the supply side coil and the power reception side coil are examples of electrodes and are formed by winding a conductive wire in a coil shape. However, depending on the type of the non-contact power supply device (power supply method), the plate is made of a conductive material. In some cases, a supply-side electrode and a power-receiving-side electrode formed in a shape are employed.

  The supply-side holding unit 21 corresponds to a “holding unit” and is configured to be able to hold the supply-side coil 101 of the non-contact power feeding device. Specifically, as shown in FIGS. 2 and 3, the supply-side holding unit 21 is formed in a rectangular plate shape on which the supply-side coil 101 can be placed and, if necessary, placed on the table. A fixing tool (not shown) for fixing the supply side coil 101 is provided. In this case, in order to reduce the influence on the magnetic field generated by the supply-side coil 101, a material having a small relative permeability (permeability) and a relative permittivity (dielectric constant) is used as the material constituting the supply-side holding unit 21. Is preferred. Specifically, a resin that is a nonconductive material (for example, an amorphous resin such as polycarbonate, polystyrene, or ABS resin) is used. Further, as shown in FIG. 7, the supply-side holding unit 21 is fixed on a rotary table 81 of a fourth moving unit 34 described later in the moving mechanism 23 and is moved by the moving mechanism 23.

  The power receiving side holding unit 22 is configured to be able to hold the power receiving side coil 102 of the non-contact power feeding device. Specifically, as shown in FIGS. 2 and 3, the power receiving side holding portion 22 is formed in a rectangular plate shape and the power receiving side coil 102 is disposed on the lower surface, and is disposed on the board as necessary. And a fixture such as a clamp for fixing the power receiving coil 102. In this case, it is preferable to use a material having a small relative permeability (permeability) and a relative permittivity (dielectric constant) as in the case of the supply side holding unit 21 for the material constituting the power receiving side holding unit 22. The same resin (non-conductive material) as the material constituting the side holding portion 21 is used. Moreover, the power receiving side holding | maintenance part 22 is being fixed to the fixing plate 24a of the flame | frame 24, as shown to FIG.

  The moving mechanism 23 is configured to be able to move the supply-side holding unit 21 in the XYZθ direction (four-axis direction) shown in FIG. 2 according to the control of the control unit 8. Specifically, as shown in FIG. 3, the moving mechanism 23 includes a base unit 30, a first moving unit 31, a second moving unit 32, a third moving unit 33, and a fourth moving unit 34. Yes. In this case, the X direction shown in the figure corresponds to a first direction along a moving surface (XY plane) parallel to the installation surface Si on which the moving mechanism 23 is installed, and the Y direction is along the moving surface. This corresponds to the second direction orthogonal to the first direction. Further, the Z direction corresponds to an orthogonal direction orthogonal to the moving surface, and the θ direction corresponds to a rotation direction centered on the orthogonal direction.

  The base portion 30 is a member that is the basis of the moving mechanism 23, and as shown in FIG. 3, an upper surface (upper surface of the plate body 42 constituting the base portion 30) with respect to the installation surface Si on which the moving mechanism 23 is installed. (Su: see FIG. 4) are installed in parallel. As shown in FIG. 4, the base portion 30 includes a frame 41, a plate body 42, and four casters 43, and is formed in a rectangular frame shape as a whole as shown in FIG. As shown in FIG. 4, the frame 41 is configured by connecting four columnar bodies 41 a to 41 d so as to form a rectangular frame shape. As shown in the figure, the plate body 42 is formed by forming an opening O at the center of a rectangular plate material, and is attached to the upper surface of the frame 41. In this case, for example, the plate body 42 is formed into a rectangular frame shape by cutting a single plate made of aluminum, and the upper surface Su is processed flat so as to function as a surface plate. The casters 43 are respectively attached to the lower surfaces of the corners of the frame 41.

  As shown in FIG. 3, the first moving unit 31 is arranged on the upper surface Su of the plate body 42 in the base unit 30 so as to be movable in the X direction (first direction). Specifically, as shown in FIGS. 4 and 5, the first moving unit 31 includes two rails 51, a plurality of (for example, four) sliders 52, a frame 53, a belt 54, and a driving unit 55. Has been. As shown in FIG. 4, each rail 51 extends along the X direction on the upper surface Su of the plate body 42 constituting the base body 30 and extends along the X direction to a pair of edge portions 42 a and 42 c facing each other. Each slider 52 (see FIG. 5) is disposed on each rail 51.

  As shown in FIG. 5, the frame 53 is formed by connecting a plurality of (for example, four) beam-shaped members 53a to 53d so as to form a rectangular frame shape. The frame 53 is fixed to the upper surface of each slider 52 as shown in FIG. As shown in FIG. 4, the belt 54 extends along the X direction between a pair of edge portions 42 b and 42 d extending along the Y direction on the upper surface Su of the plate body 42 constituting the base body 30 and facing each other. It is handed over. Further, any part of the belt 54 is fixed to the frame 53. The drive part 55 is comprised with a motor as an example, and drives the belt 54. Moreover, the drive part 55 is arrange | positioned at the edge part 42b of the upper surface Su of the board 42, as shown to the same figure. In this case, the belt 54 is driven by the drive unit 55, whereby the frame 53 is pulled (moved) in the X direction together with the sliders 52.

  As shown in FIG. 3, the second moving unit 32 is disposed on the first moving unit 31 so as to be movable in the Y direction (second direction). Specifically, as illustrated in FIGS. 5 and 6, the second moving unit 32 includes two rails 61, a plurality of (for example, four) sliders 62, a first frame 63, four columns 64, A frame 65, a belt 66, and a drive unit 67 are provided. As shown in FIG. 5, each rail 61 is disposed along the Y direction on the upper surface of a pair of members 53 b and 53 d that extend along the Y direction in the frame 53 of the first moving unit 31 and face each other. Each slider 62 (see FIG. 6) is disposed on each rail 61.

  As shown in FIG. 6, the first frame 63 is formed by connecting a plurality of (for example, four) beam-like members 63a to 63d so as to form a rectangular frame shape. The first frame 63 is fixed to the upper surface of each slider 62 as shown in FIG. Each column 64 is erected on the first frame 63 along the Z direction (orthogonal direction). The second frame 65 is formed by connecting a plurality of (for example, four) beam-like members 65a to 65d so as to form a rectangular frame shape. Further, the second frame 65 is fixed to the tip end portion (upper end portion in the figure) of each support column 64 so as to face the first frame 63.

  As shown in FIG. 5, the belt 66 is extended along the Y direction between a pair of members 53 a and 53 c that extend along the X direction in the frame 53 of the first moving unit 31 and face each other. In addition, any part of the belt 66 is fixed to the first frame 63. The drive part 67 is comprised with a motor as an example, and drives the belt 66. Moreover, the drive part 67 is arrange | positioned on the upper surface of the member 53c, as shown in the figure. In this case, the belt 66 is driven by the drive unit 67, whereby the first frame 63 is pulled (moved) in the Y direction together with each slider 62, each column 64, and the second frame 65.

  As shown in FIG. 3, the third moving unit 33 is disposed in the second moving unit 32 so as to be movable in the Z direction (orthogonal direction). Specifically, as shown in FIGS. 6 and 7, the third moving unit 33 includes two ball screws 71, a frame 72, a belt 73, and a drive unit 74. Each ball screw 71 includes a shaft portion 71a (see FIG. 6) and a nut portion 71b (see FIG. 7). As shown in FIG. 6, the first frame 63 and the second frame of the second moving portion 32 are provided. It is arranged between the frame 65.

  As shown in FIG. 7, the frame 72 is formed by connecting a plurality of (for example, five) beam-like (or plate-like) members 72a to 72e so as to form a rectangular frame shape. The frame 72 is slidable along the Z direction (orthogonal direction) by inserting the columns 64 of the second moving portion 32 into a plurality (four) of bushes 72f attached to the members 72b and 72d. 64. The frame 72 is fixed to the nut portion 71 b of the ball screw 71.

  As shown in FIG. 6, the belt 73 is bridged between the shaft portions 71 a of the ball screws 71. The drive part 74 is comprised with a motor as an example, and drives the belt 73. Moreover, the drive part 74 is arrange | positioned on the upper surface of the member 63b which comprises the 1st flame | frame 63 of the 2nd moving part 32, as shown in the figure. In this case, when the belt 73 is driven by the drive unit 74, the shaft portion 71 a of the ball screw 71 rotates, whereby the nut portion 71 b is moved in the Z direction together with the frame 72 of the third moving unit 33.

  As shown in FIG. 7, the fourth moving unit 34 is disposed on a member 72 e that constitutes the frame 72 of the third moving unit 33 so as to be rotatable in the θ direction (rotation direction centered on the Z direction: see). Specifically, the fourth moving unit 34 includes a rotary table 81, a belt 82, and a drive unit 83, as shown in FIG. The rotary table 81 is configured such that a base end portion (a lower end portion in the figure) is fixed to a member 72e of the frame 72 and a distal end portion (an upper end portion in the figure) side is rotatable. Moreover, the turntable 81 is formed so that the supply side holding | maintenance part 21 can be attached to the front-end | tip part.

  As shown in FIG. 7, the belt 82 is stretched between a base end portion of the rotary table 81 and a member 72 b (pulley disposed on the member 72 b) constituting the frame 72 of the third moving portion 33. The drive part 83 is comprised with a motor as an example, and drives the belt 82. Moreover, the drive part 83 is arrange | positioned on the upper surface of the member 72b, as shown in the figure. In this case, when the belt 82 is driven by the driving unit 83, the rotary table 81 is rotated in the θ direction.

  Here, in order to reduce the influence on the magnetic field generated by the supply-side coil 101 of the non-contact power supply apparatus, as with the supply-side holding unit 21 and the power-receiving-side holding unit 22, As a material having a small relative permeability (permeability) and a relative permittivity (dielectric constant), it is preferable to use a non-conductive material such as a resin. On the other hand, when all the members constituting the moving mechanism 23 are formed of resin or the like, it may be difficult to ensure sufficient strength. There are also members that are difficult to form with a non-conductive material, such as a motor as a drive unit. For this reason, in this measuring apparatus 1, only some of the members constituting the moving mechanism 23 are formed of a non-conductive material. Specifically, as shown in FIG. 8, a planar view region D <b> 1 (on the supply side holding unit 21 shown in FIG. 8) when the supply side holding unit 21 is viewed in the Z direction (the orthogonal direction orthogonal to the moving surface). An enlarged region D2 (a region indicated by a thick line in the figure) in which the planar view region D1 is enlarged centering on the (outline region) (as an example, similar to the planar view region D1 whose area is enlarged four times) is defined. And the supply side holding | maintenance part 21 is moved to all the positions in the movable area | region D3 (area | region shown with a broken line in the figure) of the supply side holding | maintenance part 21 along XY plane (moving surface), and it is an expansion area | region in the Z direction. All members that overlap the enlarged region D2 that moves with the movement of the supply-side holding portion 21 when D2 is viewed in plan are made of a non-conductive material.

  More specifically, as shown in FIG. 8, the belt 54 of the first moving unit 31 is formed of a nonconductive material. The members 63a extending along the X direction (first direction) among the members 63a to 63d constituting the first frame 63 and the members 65a to 65d constituting the second frame 65 of the second moving part 32, 63c, 65a, 65c and the belt 66 of the second moving part 32 are made of a non-conductive material. Further, among the members 72a to 72e constituting the frame 72 of the third moving unit 33, the members 72a and 72c extending along the X direction and the fourth moving unit 34 among the members 72a to 72e are fixed. 72e and the belt 73 of the third moving part 33 are formed of a non-conductive material. Furthermore, the rotary table 81 of the 4th moving part 34 and the belt 82 of the 4th moving part 34 are formed with the nonelectroconductive material. Further, the cable carrier 25 that accommodates various wirings and the like is formed of a non-conductive material.

  In addition, since the fixing plate 24a of the frame 24 to which the power receiving side holding unit 22 is fixed is preferably made of a material having a small relative permeability (permeability) and a relative permittivity (dielectric constant), the measuring apparatus 1 The fixing plate 24a is formed of a non-conductive material such as resin.

  As described above, by forming a part of the members constituting the moving mechanism 23 from a non-conductive material, the measuring apparatus 1 can ensure that the moving mechanism 23 has sufficient strength while being non-conductive. It is possible to sufficiently reduce the influence on the magnetic field generated by the supply side coil 101 of the contact power supply device.

  The output unit 3 outputs electric power supplied via the supply-side coil 101 of the non-contact power feeding device according to the control of the control unit 8. In this case, the output unit 3 outputs power in a state where the voltage value is maintained at the specified value (state where the current value varies), and a state where the current value is maintained at the specified value (where the voltage value varies) Output mode in which the power is output in the state) and the output mode in which the power value is maintained at the specified value (a state in which the voltage value and the current value fluctuate) and the output mode in which the power is output to the operation unit 5 The power can be supplied in the mode selected by the operation.

  The measurement unit 4 is in a state where power is supplied via the supply side coil 101 of the non-contact power feeding device (in a state where power is output from the output unit 3 to the supply side coil 101) according to the control of the control unit 8. The amount to be measured used for the evaluation of the non-contact power feeding device is measured. In this case, the measurement unit 4 measures the ratio (power supply efficiency) of the power received by the power receiving side coil 102 with respect to the power supplied from the supply side coil 101 of the non-contact power supply apparatus as a measured amount.

  The operation unit 5 includes, for example, a keyboard and a pointing device, and is used when performing various operations related to measurement. Specifically, the operation unit 5 is used when a measurement start instruction operation or a measurement end instruction operation is performed. The operation unit 5 is used when an operation (designation operation) for designating the position and orientation of the supply side coil 101 held by the supply side holding unit 21 of the holding device 2 is performed. The operation unit 5 is used when performing an operation for designating the position and orientation of the supply-side coil 101 so as to change continuously over time. Further, the operation unit 5 is used when performing an operation for specifying the type of the amount to be measured to be measured by the measurement unit 4 and an operation for selecting the output mode when the holding device 2 outputs power.

  The storage unit 6 stores the amount to be measured measured by the measurement unit 4 under the control of the control unit 8. Under the control of the control unit 8, the display unit 7 displays the contents set (designated) using the operation unit 5, the value of the measured amount measured by the measuring unit 4, the image based on the measured amount, and the like.

  The control unit 8 controls each component constituting the measuring device 1 according to an operation on the operation unit 5. Specifically, the control unit 8 moves the supply side holding unit 21 to the moving mechanism 23, and positions the supply side coil 101 held by the supply side holding unit 21 by the operation on the operation unit 5. A movement process is executed to change the state to the position specified in (1) (hereinafter, this state is also referred to as “specified state”). In addition, the control unit 8 executes a measurement process that causes the measurement unit 4 to measure the amount to be measured when the position and orientation of the supply-side coil 101 are set to the designated state. In addition, the control unit 8 stores the measured amount measured by the measuring unit 4 in the storage unit 6 in association with information indicating the position and orientation of the supply-side coil 101 at the time of measurement.

  Further, when the control unit 8 is designated to continuously change the position and posture of the supply side coil 101 as time passes by an operation on the operation unit 5, the supply side coil 101 is moved in the movement process. The position and orientation of the sensor are continuously changed over time according to the designation, and in the measurement process, the measured amount is continuously measured according to the continuous change of the position and orientation of the supply side coil 101. Let

  Next, a method for measuring an amount to be measured used for evaluating the non-contact power feeding apparatus using the measuring apparatus 1 and an operation of the measuring apparatus 1 at that time will be described with reference to the drawings. As an example, a method for measuring an amount to be measured used for evaluation of a non-contact power feeding device used for charging a battery of household electric appliances and an operation of the measuring device 1 at that time will be described.

  First, the supply-side coil 101 is held on the supply side by placing the supply-side coil 101 of the non-contact power feeding device to be inspected on the supply-side holding portion 21 of the holding device 2 and fixing it with a fixture (not shown). Held in the part 21. Next, the power receiving side coil 102 is held by the power receiving side holding portion 22 by placing the power receiving side coil 102 of the non-contact power feeding device on the lower surface of the power receiving side holding portion 22 and fixing it with a fixing tool (not shown). In this case, when the supply-side coil 101 is housed in a housing or the like, or the power-receiving coil 102 is housed in an electrical product, the state (the supply-side coil 101 is taken out of the housing) When the non-contact power feeding apparatus is evaluated using the measured amount measured in a state where the power receiving coil 102 is not taken out from the electrical product), the supply coil 101 is held by the supply holding unit 21 together with the housing. Then, the power receiving side coil 102 is held by the power receiving side holding portion 22 together with the electric product.

  Subsequently, various settings are performed by operating the operation unit 5. First, the position at which the supply side coil 101 (for example, the central part of the supply side coil 101) is positioned when measuring the measured amount is designated by XYZ coordinates. Next, the posture of the supply-side coil 101 at that position is designated by inputting an angle in the θ direction. Thereby, the operation of designating one designated state is completed. In this case, the measuring apparatus 1 can measure the measured amount in the designated state each time one designated state (one position and orientation) is designated, or can designate a plurality of designated states in advance. It is also possible to continuously measure the amount to be measured in each designated state while changing the designated state. In this example, a description will be given below assuming that a plurality of designated states are designated in advance.

  Subsequently, the operation unit 5 is operated to specify the type of the measured amount to be measured by the measurement unit 4 and to select an output mode when the holding device 2 outputs power. In this case, power supply efficiency (ratio of received power to supplied power) is specified as the amount to be measured, and an output mode that outputs power while maintaining the voltage value at the specified value is selected as the output mode. And

  Next, the operation unit 5 is operated to perform a measurement start instruction operation. In response to this, the control unit 8 controls the output unit 3 to start the output of power in the selected output mode. Further, the control unit 8 controls the moving mechanism 23 of the holding device 2 so that the supply side coil 101 supported by the supply side holding unit 21 assumes a specified posture at the position specified as the first specified state. Thus, the supply side holding | maintenance part 21 is moved to a XYZ direction and (theta) direction (execution of a movement process).

  Subsequently, the control unit 8 controls the measurement unit 4 when the supply-side coil 101 is in the first designated state, and the power received by the power-receiving-side coil 102 with respect to the power supplied from the supply-side coil 101. The power supply efficiency is measured as the amount to be measured, which is the ratio of (measurement processing execution). Next, the control unit 8 causes the storage unit 6 to store the power supply efficiency in the first designated state measured by the measurement unit 4 in association with information indicating the position and orientation of the supply side coil 101 at the time of measurement.

  Here, in this measuring apparatus 1, as described above, some of the members constituting the moving mechanism 23 (members that overlap the entire area of the enlarged region D2 that moves in accordance with the movement of the supply side holding portion 21). ) Is made of a non-conductive material, sufficient strength of the moving mechanism 23 is ensured, and the displacement of the supply side holding part 21 when the supply side holding part 21 is moved is reliably prevented, It is possible to sufficiently reduce the influence on the magnetic field generated by the supply-side coil 101 of the non-contact power supply apparatus. For this reason, in this measuring apparatus 1, it is possible to sufficiently improve the measurement accuracy of the amount to be measured.

  Subsequently, the control unit 8 controls the moving mechanism 23 of the holding device 2 so that the supply side coil 101 assumes the specified posture at the position specified as the second specified state. Move. Next, when the supply-side coil 101 is in the second designated state, the control unit 8 controls the measurement unit 4 to measure the power feeding efficiency, and subsequently determines the power feeding efficiency in the second designated state. The information is stored in the storage unit 6 in association with information indicating the position and orientation of the supply side coil 101 at the time of measurement. In the same manner, the control unit 8 controls the holding device 2 and the measurement unit 4 to measure the power supply efficiency in each designated state (execution of the movement process and the measurement process), and to improve the power supply efficiency. The information is stored in the storage unit 6 in association with information indicating the position and orientation of the supply side coil 101 at the time of measurement.

  This completes the measurement of the power supply efficiency as the measured quantity used for the evaluation of the non-contact power supply apparatus. In this case, the power supply efficiency stored in the storage unit 6 is displayed as a list of differences in power supply efficiency depending on the position (XYZ direction coordinates) and posture (θ direction angle) of the supply side coil 101, or displayed as a three-dimensional image. Can be used.

  In the measuring apparatus 1, as described above, the control unit 8 is in a specified state in which the position and orientation of the supply-side coil 101 held by the supply-side holding unit 21 are specified by a designation operation on the operation unit 5. A movement process for moving the supply side holding unit 21 to the movement mechanism 23 is executed, and a measurement process for causing the measurement unit 4 to measure a measurement amount when the position and posture of the supply side coil 101 are in a specified state is executed. . For this reason, in this measuring apparatus 1, compared with the conventional structure which records and records the position and the measured value of the supply side coil 101 which are manually measured each time the supply side holding part 21 is moved, the measurement efficiency is improved. It is possible to improve sufficiently.

  As described above, according to the measuring apparatus 1, the supply side holding portion 21 is formed of a non-conductive material, and the holding portion of the holding portion along the XY plane (moving surface) among the members configuring the moving mechanism 23. A member that overlaps the supply side holding portion 21 when the supply side holding portion 21 is moved to all positions in the movable region D3 and the supply side holding portion 21 is viewed in plan in the Z direction (orthogonal direction orthogonal to the moving surface). Is formed of a non-conductive material, it is possible to ensure sufficient strength of the moving mechanism 23 and reliably prevent displacement of the supply side holding portion 21 when the supply side holding portion 21 is moved. The influence on the magnetic field generated by the supply side coil 101 of the non-contact power feeding apparatus can be sufficiently reduced. Therefore, according to this measuring apparatus 1, the measurement accuracy of the amount to be measured can be sufficiently improved.

  Moreover, according to this measuring apparatus 1, the expansion area | region D2 which expanded the planar view area | region D1 centering | focusing on planar view area | region D1 when the supply side holding | maintenance part 21 is planarly viewed in Z direction is prescribed | regulated, and it is in movable area | region D3 When the supply side holding part 21 is moved to all of the positions, and the enlarged area D2 that moves as the supply side holding part 21 moves is viewed in plan in the Z direction, the member of the moving mechanism 23 that overlaps the enlarged area D2 is moved. By forming the supply-side holding part 21 in a plan view in the Z direction by forming it with a non-conductive material, only the member that overlaps with the supply-side holding part 21 is positioned in a wider range than the configuration formed with the non-conductive material. Is made of a non-conductive material, so that the influence on the magnetic field generated by the supply-side coil 101 can be further reduced. As a result, the measurement accuracy of the measured amount can be further improved.

  Moreover, according to this measuring apparatus 1, the base | substrate part 30, the 1st moving part 31 which can be moved to a X direction, the 2nd moving part 32 which can be moved to a Y direction, and the 3rd movement which can be moved to a Z direction Since the moving mechanism 23 is configured by including the portion 33 and the fourth moving portion 34 that can rotate in the θ direction, the supply side holding portion 21 can be placed in any position (relative to the power receiving side holding portion 22. A position rotated by an arbitrary angle in the θ direction (an arbitrary relative angle with respect to the power-receiving-side holding unit 22), and thus a large number of measured objects in different positions and postures. The amount can be measured.

  Further, in this measuring apparatus 1, the belt 54 of the first moving unit 31, members 63 a, 63 c, 65 a, 65 c extending along the X direction in the second moving unit 32, and the belt 66 of the second moving unit 32. Members 72a and 72c extending along the X direction in the third moving unit 33, members 72e to which the fourth moving unit 34 in the third moving unit 33 is fixed, and belts 73 of the third moving unit 33 The rotary table 81 of the fourth moving unit 34 and the belt 82 of the fourth moving unit 34 are made of a nonconductive material. That is, in this measuring apparatus 1, the number of members formed of a non-conductive material necessary for sufficiently reducing the influence on the magnetic field generated by the supply side coil 101 is suppressed. For this reason, according to this measuring apparatus 1, the strength of the moving mechanism 23 can be sufficiently increased by preventing a decrease in the strength of the moving mechanism 23 due to an increase in the number of members formed of a non-conductive material. .

  Moreover, according to this measuring apparatus 1, it is provided with the frame 41 which connected the columnar bodies 41a-41d in the substantially rectangular shape, and the base plate part 42 which has the opening part O in the center part and was attached to the frame 41. 30, even if the base portion 30 is formed of a high-strength metal material (that is, a non-conductive material), the supply-side holding portion 21 is changed to the supply-side holding portion 21 when viewed in plan in the Z direction. Since it is possible to prevent the member constituting the base portion 30 from being located in the overlapping portion, the influence on the magnetic field generated by the supply side coil 101 of the non-contact power feeding device is sufficiently ensured while ensuring sufficient rigidity of the base portion 30. Can be reduced. In addition, since the base body portion 30 is configured in this way, the thickness of the base body portion 30 can be suppressed thin (the height is low), and thus the moving mechanism 23 can be sufficiently downsized as a whole.

  The measuring device is not limited to the above configuration. For example, although the example in which the moving mechanism 23 that can move the supply side holding unit 21 in the four-axis direction is described above, the moving mechanism 23 that can move in all four-axis directions is not necessarily used, and non-contact power feeding It is also possible to employ a moving mechanism 23 that can move the supply side holding portion 21 only in a part of the four axial directions according to the usage form of the apparatus. It is also possible to employ a moving mechanism 23 that can move in the 5-axis direction or a moving mechanism 23 that can move in the 6-axis direction. That is, the axial direction in which the supply-side holding unit 21 is moved can be defined as any number of axial directions from the 1-axis direction to the 6-axis direction.

  Further, the configuration example in which the moving mechanism 23 moves the supply-side holding unit 21 that holds the supply-side coil 101 of the non-contact power feeding device has been described above. However, the power-receiving side holding unit 22 that holds the power-receiving side coil 102 of the non-contact power feeding device. It is also possible to adopt a configuration in which the moving mechanism 23 moves. In this case, the power receiving side holding unit 22 corresponds to a “holding unit”. Also in this configuration, the axial direction in which the power receiving side holding portion 22 is moved can be defined as any number of axial directions from the 1-axis direction to the 6-axis direction.

  In addition, a configuration in which the moving mechanism 23 moves both the supply side holding unit 21 that holds the supply side coil 101 and the power reception side holding unit 22 that holds the power reception side coil 102 may be employed. In this case, both the supply side holding unit 21 and the power receiving side holding unit 22 correspond to the “holding unit”. Even in this configuration, the axial direction in which the supply-side holding unit 21 is moved can be defined as any number of axial directions from one axial direction to six axial directions, and the axial direction in which the power-receiving-side holding unit 22 is moved is also Any number of axial directions from one axial direction to six axial directions can be defined.

  Further, the example in which the similar enlarged region D2 in which the area of the planar view region D1 is enlarged four times has been described above, but the size and shape of the enlarged region D2 should be specified to an arbitrary size or shape equal to or larger than the same size. Can do. Therefore, the enlarged region D2 that is the same size as the planar view region D1, that is, the planar view region D1 itself can be defined as the enlarged region D2.

  In addition, since it is preferable to form all members that overlap the enlarged region D2 with a non-conductive material when the enlarged region D2 is viewed in plan in the Z direction, in the above example, such a configuration (which overlaps the enlarged region D2) is used. All members are made of a non-conductive material), but only the main members (large-sized members) that overlap the enlarged region D2 are made of a non-conductive material. As for the member (small member), a structure formed of a conductive material may be employed.

  Further, although an example in which a motor is used as the drive units 55, 67, 74, and 83 has been described above, an air cylinder, a hydraulic cylinder, a linear actuator, a piezoelectric actuator, and the like can also be used as the drive units 55, 67, 74, and 83.

  Moreover, although the configuration example for measuring the power supply efficiency as the measured amount has been described above, other measured amounts can also be measured. For example, a magnetic field sensor is arranged around the frame 24 of the holding device 2 and the holding device 2, and the magnetic field generated from the supply-side coil 101 can be measured as a measured amount based on a detection value detected by the magnetic field sensor. 4, and the control unit 8 may perform a measurement process that controls the measurement unit 4 to measure a magnetic field when the movement process is executed.

DESCRIPTION OF SYMBOLS 1 Measuring apparatus 3 Output part 4 Measuring part 21 Supply side holding | maintenance part 23 Movement mechanism 30 Base | substrate part 31 1st moving part 32 2nd moving part 33 3rd moving part 34 4th moving part 41,53,72 Frame 41a-41d Columnar shape Body 42 Plate 42a-42d Edge 51, 61 Rail 52, 62 Slider 53a-53d, 63a-63d, 65a-65d, 72a-72e Member 54, 66, 73, 82 Belt 55, 67, 74, 83 Drive part 63 First frame 64 Support column 65 Second frame 71 Ball screw 81 Rotary table 101 Supply side coil 102 Power reception side coil D1 Plane view area D2 Expansion area D3 Movable area O Opening Si installation surface Su Upper surface

Claims (5)

A holding unit that holds the electrode of the non-contact power feeding device, a moving mechanism that moves the holding unit, an output unit that outputs power supplied through the electrode, and a state in which power is supplied through the electrode A measuring device comprising a measuring unit for measuring a measured amount used for evaluation of the non-contact power feeding device,
The holding portion is formed of a non-conductive material,
The moving mechanism is configured to be able to move the holding unit along a moving surface parallel to an installation surface on which the moving mechanism is installed, and the moving surface of the members constituting the moving mechanism. When the holding part is moved to all positions within the movable area of the holding part along the plane and the holding part is viewed in a plane orthogonal to the moving surface, the member overlapping the holding part is non-conductive. Measuring device made of sexual material. An enlarged region is defined by enlarging the planar view region around the planar view region when the holding unit is planarly viewed in the orthogonal direction,
The moving mechanism moves the holding unit to all positions in the movable region, and overlaps the enlarged region when the enlarged region moving with the movement of the holding unit is viewed in a plane in the orthogonal direction. The measuring apparatus according to claim 1, wherein the member is formed of the non-conductive material.   The moving mechanism includes a base portion installed with an upper surface parallel to the installation surface, and a first movement disposed on the upper surface of the base portion so as to be movable in a first direction along the moving surface. A second moving part disposed in the first moving part so as to be movable in a second direction orthogonal to the first direction along the moving surface, and the second moving part movable in the orthogonal direction And a fourth moving unit arranged in the third moving unit so as to be rotatable in a rotation direction centered on the orthogonal direction and capable of fixing the holding unit. The measuring device according to claim 1 or 2. The base portion is formed in a substantially rectangular frame shape,
The first moving part is provided on a pair of rails that extend along the first direction on the upper surface of the base body part and are arranged on a pair of edges that face each other, and the rails. A plurality of sliders, a frame formed by connecting a plurality of members into a substantially rectangular shape, and a frame fixed to each slider, and extending along the second direction in the base portion and facing each other A belt that spans between the edges and pulls the frame, and a drive unit that drives the belt,
The second moving part is a pair of rails arranged on a pair of members that extend along the second direction and face each other among the members that constitute the frame of the first moving part. A plurality of sliders disposed on the rails, a first frame formed by connecting a plurality of members in a substantially rectangular shape and fixed to the sliders, and the first frame along the orthogonal direction. A plurality of struts erected on the frame, a second frame formed by connecting a plurality of members in a substantially rectangular shape and fixed to the front end of each strut so as to face the first frame; Of the members constituting the frame of the first moving unit, the first frame, the struts, and the first frame, spanned between a pair of the members extending along the first direction and facing each other. Belt that pulls the second frame It is configured to include a driving unit for driving the belt,
The third moving part is formed by connecting a ball screw disposed between the first frame and the second frame of the second moving part and a plurality of members in a substantially rectangular shape, and in the orthogonal direction. A frame that is slidable along the support of the second moving part and is fixed to the nut part of the ball screw, and a belt that spans the shaft of the ball screw and rotates the shaft. And a drive unit for driving the belt,
The fourth moving part is formed so that the holding part can be attached, and is spanned between the rotary table fixed to the frame of the third moving part and the rotary table and the third moving part. A belt that rotates the rotary table; and a drive unit that drives the belt.
The belt of the first moving unit, the first frame of the second moving unit, the member constituting the second frame, the member extending along the first direction, and the first The belt of the second moving part, the member extending along the first direction among the members constituting the frame of the third moving part, and the frame of the third moving part Of the members, the member to which the fourth moving unit is fixed, the belt of the third moving unit, the rotary table of the fourth moving unit, and the belt of the fourth moving unit. 4. The measuring device according to claim 3, wherein the measuring device is made of a non-conductive material.   The measuring device according to claim 4, wherein the base portion includes a frame in which columnar bodies are connected in a substantially rectangular shape, and a plate body having an opening at a central portion and attached to the frame.

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