JP2017053163A - Sliding door device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sliding door device which can be easily reduced in size.SOLUTION: A sliding door device 10 includes a roller 44 attached to a sliding door 40 and moving the sliding door 40 along a rail 30 by rotating in a state of being brought into contact with the rail 30, a motor 42 attached to the sliding door 40, a gear device 43 attached to the sliding door 40 and amplifying and transmitting torque generated by the motor 42 to the roller, a driving circuit 50 attached to the sliding door 40 and rotating the roller 44 by driving the motor 42, and a non-contact power feed circuit 60 attached to an upper frame 20 and performing non-contact power feed to the driving circuit 50.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a sliding door device that moves a sliding door.

  2. Description of the Related Art Conventionally, a sliding door opening and closing device that automatically opens and closes a sliding door by a motor is known. As such a sliding door opening and closing device, Patent Document 1 discloses a gear motor type sliding door opening and closing device.

JP 2000-186463 A

  In the sliding door opening and closing device, it is necessary to consider the moving range of the sliding door. For this reason, the opening / closing device of the sliding door becomes large in the moving direction of the sliding door. That is, downsizing of the sliding door opening / closing device is an issue.

  The present invention provides a sliding door device that can be easily downsized.

  A sliding door device according to an aspect of the present invention is a sliding door device that moves a sliding door along a rail provided in a structure, and is attached to the sliding door and rotates in a state in contact with the rail. A roller that moves the roller along the rail, a motor that is attached to the sliding door, a drive circuit that is attached to the sliding door and rotates the roller by driving the motor, and is attached to the structure and is driven. A non-contact power feeding circuit that performs non-contact power feeding on the circuit.

  ADVANTAGE OF THE INVENTION According to this invention, the sliding door apparatus with easy size reduction is implement | achieved.

FIG. 1 is an external perspective view of a sliding door device according to an embodiment. FIG. 2 is an external perspective view of the sliding door device according to the embodiment, and mainly shows an internal structure. FIG. 3 is a diagram illustrating a connection relationship between the motor, the gear device, and the roller. FIG. 4 is an external view showing a specific configuration of the non-contact power feeding circuit and the drive circuit. FIG. 5 is a block diagram illustrating a functional configuration of the sliding door device according to the embodiment. FIG. 6 is a circuit diagram of a non-contact power feeding circuit and a driving circuit of the sliding door device according to the embodiment. FIG. 7 is a schematic diagram illustrating a sliding door device according to a comparative example.

  Hereinafter, a sliding door device according to an embodiment will be described with reference to the drawings. It should be noted that each of the embodiments described below shows a comprehensive or specific example. The numerical values, shapes, materials, constituent elements, arrangement positions and connecting forms of the constituent elements, and the like shown in the following embodiments are merely examples, and are not intended to limit the present invention. In addition, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims indicating the highest concept are described as optional constituent elements.

  Each figure is a schematic diagram and is not necessarily shown strictly. Moreover, in each figure, the same code | symbol is attached | subjected to the substantially same structure, and the overlapping description may be abbreviate | omitted or simplified.

  In the following embodiments, the ceiling side may be expressed as “upper” and the floor side may be expressed as “lower”. In the following embodiments, the Z-axis direction is, for example, the vertical direction, and the X-axis direction and the Y-axis direction are directions orthogonal to each other on a plane (horizontal plane) perpendicular to the Z-axis.

(Embodiment)
[Configuration of sliding door device]
Hereinafter, the structure of the sliding door apparatus which concerns on embodiment is demonstrated using drawing. 1 and 2 are schematic external views of the sliding door device according to the embodiment. 1 and 2 are schematic diagrams, and more accurate arrangement of each component is illustrated in FIGS. 3 and 4 to be described later.

  As shown in FIG. 1, the sliding door device 10 according to the embodiment is a sliding door device 10 used in a house or the like, and moves the sliding door 40 along a rail 30 provided in the upper frame 20 (kamoi). It is a device to let you. The upper frame 20 is an example of a structure. In FIG. 2, the upper frame 20 and the sliding door 40 are not shown in order to show the internal structure in detail.

  The sliding door device 10 includes a motor 42, a gear device 43, a roller 44, a drive circuit 50, and a non-contact power feeding circuit 60. The pickup coil 51 shown in FIGS. 1 and 2 is included in the drive circuit 50, and the line coil 65 is included in the non-contact power supply circuit 60.

  As shown in FIGS. 1 and 2, the sliding door device 10 includes two sets of rollers 44, a motor 42, and a gear device 43 in more detail. Since these two sets perform the same operation, only one set will be described in the following embodiment.

  Moreover, in FIG.1 and FIG.2, although the sliding door apparatus 10 is built in the upper frame 20 and the sliding door 40, the sliding door apparatus 10 is attached to the upper frame 20 and the sliding door 40 of an existing house after the fact. It may be realized as an external type device.

  The rail 30 is disposed above the sliding door 40. The rail 30 is composed of two elongated members extending along the moving direction of the sliding door 40. Although not shown in detail in FIGS. 1 and 2, the two long members constituting the rail 30 are provided with a gap in the Y-axis direction, and the cylinder 45 is provided in the gap. Passed. The rail 30 is attached to the upper frame 20. The rail 30 may be formed of metal such as stainless steel, or may be formed of resin. Further, the rail 30 may be formed integrally with the upper frame 20.

  Here, the configurations of the motor 42, the gear device 43, and the roller 44 will be described with further reference to FIG. 3 in addition to FIGS. 1 and 2. FIG. 3 is a diagram illustrating a connection relationship among the motor 42, the gear device 43, and the roller 44. 3A is a view of the motor 42, the gear device 43, and the roller 44 as viewed from above (Z-axis direction + side), and FIG. 3B mainly illustrates the gear device 43 in the front ( It is the figure seen from the Y-axis direction + side).

  The motor 42 is a motor attached to the sliding door 40. The motor 42 includes a motor main body 42a and a rotating shaft 42b that rotates with respect to the motor main body 42a. Specifically, the motor 42 is a DC motor driven by DC power. The motor 42 may be an AC motor driven by three-phase AC power or two-phase AC power, and any motor may be used.

  The gear device 43 is attached to the sliding door 40, amplifies the torque generated by the motor 42, and transmits the amplified torque to the roller 44. In the present embodiment, the gear device 43 is a magnetic gear device including two magnetic gears (a first magnetic gear 43a and a second magnetic gear 43b) that rotate with each other by a magnetic force.

  The first magnetic gear 43a is a gear that is attached to the rotation shaft 42b of the motor 42 at the center and rotates integrally with the rotation shaft 42b. The first magnetic gear 43a has a plurality of magnets arranged in an annular shape along the circumferential direction around the rotation shaft 42b, and N poles and S poles are alternately arranged in the circumferential direction. The first magnetic gear 43a is not necessarily formed by a plurality of magnets. For example, the first magnetic gear 43a may be formed by magnetizing the outer peripheral surface of one disk-shaped magnetic material.

  The second magnetic gear 43b is a gear that has a rotating shaft 44a of the roller 44 attached to the center and rotates integrally with the rotating shaft 44a. The second magnetic gear 43b has a plurality of magnets arranged in an annular shape along a circumferential direction centering on the rotation shaft 44a, and N poles and S poles are alternately arranged in the circumferential direction. The total number of magnetic poles (N pole or S pole) included in the second magnetic gear 43b is larger than the total number of magnetic poles included in the first magnetic gear 43a. The second magnetic gear 43b is not necessarily formed by a plurality of magnets. For example, the second magnetic gear 43b may be formed by magnetizing the outer peripheral surface of one disk-shaped magnetic material.

  In the gear device 43, the diameter of the first magnetic gear 43a is smaller than the diameter of the second magnetic gear 43b. Thus, the gear device 43 can amplify the torque generated by the motor 42 and transmit it to the roller 44.

  The gear device 43 may be a gear device having two general gears (two gears that rotate with each other by meshing teeth). In this case, the gear device 43 includes a first gear connected to the motor 42, a second gear that meshes with the first gear and rotates, and is connected to the roller 44. The gear diameter is smaller than the gear diameter. The gear device 43 is not an essential component, and the rotation shaft 42 b of the motor 42 may be directly attached to the roller 44.

  The roller 44 is a wheel that is attached to the upper end portion of the sliding door 40 and moves the sliding door 40 along the rail 30 by rotating while being in contact with the rail 30. As shown in FIGS. 1 and 2, the roller 44 protrudes from the upper end portion of the sliding door 40 and is disposed in a space in the upper frame 20 and travels on the rail 30. The roller 44 has a rotating shaft 44a, and the roller 44 rotates integrally with the rotating shaft 44a. The roller 44 may be formed of resin or metal. Further, a resin member such as a tire may be mounted on the outer peripheral surface of the roller 44.

  In more detail, the sliding door device 10 includes two rollers 44. The two rollers 44 are attached to the sliding door 40 side by side in the moving direction (X-axis direction) of the sliding door 40. More specifically, one of the two rollers 44 is attached to one end of the sliding door 40 in the moving direction, and the other of the two rollers 44 is the other of the sliding door 40 in the moving direction. Attach to the end.

  With the configuration described above, when the rotating shaft 42b of the motor 42 is rotated counterclockwise by the drive circuit 50, as shown by arrows in FIGS. 3A and 3B, the roller 44 rotates clockwise. Rotate to. When the roller 44 rotates in a clockwise direction in contact with the rail 30, the sliding door 40 moves to the left (X-axis direction − side in FIG. 1). That is, the sliding door 40 opens.

  On the other hand, when the rotating shaft 42b of the motor 42 is rotated clockwise by the drive circuit 50, the roller 44 rotates counterclockwise. When the roller 44 rotates counterclockwise with the rail 30 in contact with the rail 30, the sliding door 40 moves to the right (X-axis direction + side in FIG. 1). That is, the sliding door 40 is closed.

  The sliding door device 10 assists the user in opening and closing the sliding door 40, for example, when the user starts to open the sliding door 40 or when the user starts to close the sliding door 40. When the user starts to open the sliding door 40 or when the user starts to close the sliding door 40, for example, it is detected by a door sensor. That is, the sliding door device 10 may include a door sensor.

  However, the sliding door device 10 may include a human sensor, and when the human sensor detects a person, the sliding door 40 may be automatically opened and closed after a predetermined time. That is, the sliding door device 10 may be applied to an automatic door.

  Next, the non-contact power feeding circuit 60 and the drive circuit 50 will be described with reference to FIG. 4 in addition to FIGS. FIG. 4 is an external view showing a specific configuration of the non-contact power feeding circuit 60 and the drive circuit 50.

  The non-contact power supply circuit 60 is a circuit that is attached to the upper frame 20 and performs non-contact power supply to the drive circuit 50. Specifically, the non-contact power supply circuit 60 includes a line type coil 65, and performs non-contact power supply to the drive circuit 50 through the line type coil 65. That is, the non-contact power supply circuit 60 performs electromagnetic induction type non-contact power supply using a coil. A specific circuit configuration of the non-contact power feeding circuit 60 will be described later.

  The line-type coil 65 is an example of a power transmission unit, and transmits AC power to the drive circuit 50 in a contactless manner. The line-type coil 65 is a long annular coil that is long in the direction along the rail 30 (X-axis direction), and is disposed close to the pickup coil 51 so as not to contact the pickup coil 51.

  The line-type coil 65 is formed of, for example, an enameled wire in which a copper core wire is insulated and coated with enamel, but may be formed of other electric wires. In addition, the frequency of the alternating current power supplied to the line type coil 65 is about 100 kHz, for example.

  The pickup coil 51 is an example of a power receiving unit, and receives AC power transmitted by the line coil 65. The pickup coil 51 is formed by winding an electric wire 51b around a coil bobbin 51a. The coil bobbin 51a is formed of, for example, resin, and the electric wire 51b is, for example, an enameled wire in which a copper core wire is insulated and coated with enamel.

  When viewed from above, the pickup coil 51 is such that the winding axis direction (Y-axis direction) of the electric wire 51b intersects the longitudinal direction of the line coil 65 (the direction in which the rail 30 extends, the X-axis direction) perpendicularly. Placed in. With such an arrangement, the pickup coil 51 can receive AC power from the line coil 65 by electromagnetic induction.

  Since the pickup coil 51 is attached to the sliding door 40 via the cylindrical body 45, it moves with the movement of the sliding door 40. At this time, since the pickup coil 51 moves along the line type coil 65, power feeding is not interrupted by the movement of the sliding door 40.

  The drive circuit 50 is a circuit that is attached to the upper end portion of the sliding door 40 and rotates the roller 44 using electric power supplied from the non-contact power supply circuit 60. A specific configuration of the drive circuit 50 will be described later. The drive circuit 50 may be a general-purpose IC (integrated circuit) for driving a motor.

  The cylindrical body 45 integrally holds a pickup coil 51 located above (Z-axis direction + side) and a drive circuit 50 located below (Z-axis direction-side), and vertically (Z-axis direction). It is a long cylindrical member. The cylindrical body 45 is attached to the upper end portion of the sliding door 40.

  The cylinder 45 is made of, for example, metal. When the cylindrical body 45 is formed of metal, it may be formed with a size and a length that do not adversely affect the performance of the non-contact power supply of the non-contact power supply circuit 60. Further, the cylinder 45 may be made of resin in order to reduce such an adverse effect on the performance of the non-contact power feeding. An electrical wiring (for example, a lead wire) that electrically connects the pickup coil 51 and the drive circuit 50 is inserted into the cylindrical body 45.

[Circuit configuration]
Next, specific circuit configurations of the non-contact power supply circuit 60 and the drive circuit 50 will be described with reference to a block diagram and a circuit diagram. FIG. 5 is a block diagram illustrating a functional configuration of the sliding door device 10. FIG. 6 is a circuit diagram of the contactless power feeding circuit 60 and the drive circuit 50. In FIG. 5, the upper frame 20, the rail 30, the sliding door 40, the motor 42, the gear device 43, and the roller 44 are also schematically illustrated.

  First, the non-contact power feeding circuit 60 provided on the upper frame 20 will be described. As shown in FIGS. 5 and 6, the non-contact power feeding circuit 60 includes a first AC-DC conversion circuit 61, a first DC-DC conversion circuit 62, an inverter circuit 63, and a first control unit 64. And a line type coil 65. 5 and 6 also illustrate an AC power supply 70 that supplies AC power to the non-contact power supply circuit 60. The AC power source 70 is, for example, a commercial system (power system), and the AC power obtained from the AC power source 70 has, for example, a frequency of 50 Hz or 60 Hz and an effective value of 100V.

  The first AC-DC conversion circuit 61 converts AC power obtained from the AC power supply 70 into DC power and outputs it. The first AC-DC converter circuit 61 includes a bridge-type full-wave rectifier circuit composed of four diodes that full-wave rectifies AC power and outputs a DC voltage, and a smoother that smoothes the power rectified by the rectifier circuit. It consists of a capacitor. The specific configuration of the first AC-DC conversion circuit 61 is not limited to such a configuration, and any circuit may be used as long as AC power can be converted into DC power.

  The first DC-DC conversion circuit 62 converts the DC power output from the first AC-DC conversion circuit 61 into DC power suitable for the inverter circuit 63 and outputs the DC power. The first DC-DC conversion circuit 62 is a chopping type that steps down the DC power output from the first AC-DC conversion circuit 61 when the transistor S0 is turned on and off at high speed by the first control unit 64. DC-DC converter.

  Note that the specific configuration of the first DC-DC conversion circuit 62 is not limited to such a configuration, and the DC power output from the first AC-DC conversion circuit 61 is converted into a DC current suitable for the inverter circuit 63. Any circuit may be used as long as it can be converted into electric power. Further, the first DC-DC conversion circuit 62 may be omitted when it is not necessary to convert the DC power output from the first AC-DC conversion circuit 61.

  The inverter circuit 63 further converts the DC power output from the first AC-DC conversion circuit 61 and converted by the first DC-DC conversion circuit 62 into AC power and outputs the AC power. The inverter circuit 63 is a half-bridge type inverter circuit in which the transistors S1 and S2 are alternately turned on and off by the first control unit 64, but may be a full-bridge type inverter circuit and is not particularly limited.

  The first control unit 64 is a control unit that outputs a control signal for turning on and off the transistor S0, the transistor S1, and the transistor S2. The first control unit 64 is realized by a processor, a microcomputer, a dedicated circuit, or the like.

  The line coil 65 transmits the AC power output from the inverter circuit 63 to the drive circuit 50 in a contactless manner. The capacitor 66 is inserted in order to adjust the resonance frequency of the line coil 65 and the pickup coil 51 and increase the power utilization efficiency, and may be omitted if not necessary.

  Next, the drive circuit 50 will be described. The drive circuit 50 includes a pickup coil 51, a second AC-DC conversion circuit 52, a second DC-DC conversion circuit 53, a switching circuit 54, and a second control unit 55.

  The pickup coil 51 receives AC power transmitted by the line coil 65. The capacitor 56 is inserted in order to adjust the resonance frequency of the line coil 65 and the pickup coil 51 and increase the power use efficiency, and may be omitted if not necessary.

  The second AC-DC conversion circuit 52 converts AC power received by the pickup coil 51 into DC power. The second AC-DC conversion circuit 52 includes a bridge-type full-wave rectifier circuit composed of four diodes that full-wave rectifies AC power and outputs a DC voltage, and a smoother that smoothes the power rectified by the rectifier circuit. It consists of a capacitor. The specific configuration of the second AC-DC conversion circuit 52 is not limited to such a configuration, and any circuit may be used as long as AC power can be converted into DC power.

  The second DC-DC conversion circuit 53 converts the DC power output from the second AC-DC conversion circuit 52 into DC power suitable for the motor 42 and outputs the DC power. The second DC-DC conversion circuit 53 is a chopping type that steps down the DC power output from the second AC-DC conversion circuit 52 when the transistor S3 is turned on and off at high speed by the second controller 55. DC-DC converter.

  Note that the specific configuration of the second DC-DC conversion circuit 53 is not limited to such a configuration, and the DC power output from the second DC-DC conversion circuit 53 is the DC power suitable for the motor 42. Any circuit may be used as long as it can be converted into the above. Further, the second DC-DC conversion circuit 53 may be omitted when it is not necessary to convert the DC power output from the second DC-DC conversion circuit 53.

  The switching circuit 54 is a direct current power converted by the second AC-DC conversion circuit 52, and whether the direct current power converted by the second DC-DC conversion circuit 53 is applied to the motor 42 with positive polarity. Switch whether to give negative polarity. The switching circuit 54 includes transistors S4 and S5 as high-side switches, and includes transistors S6 and S7 as low-side switches.

  For example, when the transistors S4 and S7 are turned on and the transistors S5 and S6 are turned off by the second controller 55, positive DC power is applied to the motor. For example, when the transistors S4 and S7 are turned off and the transistors S5 and S6 are turned on by the second control unit 55, negative DC power is supplied to the motor 42. Thereby, the rotation direction of the motor 42, that is, the opening / closing of the sliding door 40 is controlled.

  The second control unit 55 is a control unit that outputs a control signal for turning on and off the transistor S3 included in the second DC-DC conversion circuit 53 and the transistors S4 to S7 included in the switching circuit 54. The second control unit 55 is realized by a processor, a microcomputer, a dedicated circuit, or the like.

[Effects, etc.]
Hereinafter, effects obtained by the sliding door device 10 will be described with reference to a comparative example. FIG. 7 is a schematic diagram illustrating a sliding door device according to a comparative example.

  The sliding door device 100 according to the comparative example shown in FIG. 7 is a so-called gear motor type sliding door device. The sliding door device 100 includes a main body 130 attached to the upper frame 120, a gear 131 provided inside the main body 130, and a rack gear 132 that meshes with the gear 131. The rack gear 132 is long in the opening / closing direction of the sliding door 140 and is screwed to the sliding door 140. The rack gear 132 moves in the opening / closing direction of the sliding door 140 by the rotation of the gear 131. The gear 131 is rotated by a motor (not shown).

  The sliding door device 100 can open the sliding door 140 by pulling the rack gear 132 into the main body 130 by the rotation of the gear 131. Further, the sliding door device 100 can close the sliding door 140 by pushing the rack gear 132 from the main body 130 by the rotation of the gear 131.

  In such a sliding door device 100, the moving range of the sliding door 140 needs to be considered. For example, the rack gear 132 needs to be formed long in the moving direction in order to completely open and close the sliding door 140. Further, the main body 130 also tends to be enlarged to accommodate the gear 131 and the rack gear 132. That is, the sliding door device 100 has a problem that the sliding door device 100 increases in size in the moving direction of the sliding door 140. Although not shown, a general automatic door also has a similar problem because a large door opening / closing device is built in the upper frame in the opening / closing direction.

  On the other hand, the sliding door apparatus 10 moves the sliding door 40 along the rail 30 provided in the upper frame 20. The upper frame 20 is an example of a structure. The sliding door device 10 is attached to the sliding door 40, and includes a roller 44 that moves the sliding door 40 along the rail 30 by rotating in contact with the rail 30, and a motor 42 attached to the sliding door 40. The sliding door device 10 is attached to the sliding door 40 and a gear device 43 that amplifies the torque generated by the motor 42 and transmits the amplified torque to the roller 44. The sliding door device 10 is attached to the sliding door 40 and rotates the roller 44 by driving the motor 42. A drive circuit 50 and a non-contact power supply circuit 60 that is attached to the upper frame 20 and performs non-contact power supply to the drive circuit 50 are provided.

  That is, the sliding door device 10 opens and closes the sliding door 40 by rotating the roller 44 by driving the motor 42. As described above, when the sliding door 40 is provided with the motor 42 and the like (the motor 42, the gear device 43, the roller 44, and the drive circuit 50), the motor 42 and the like move together with the sliding door 40. Therefore, the sliding door device 10 does not need to be enlarged in the opening / closing direction of the sliding door 40 in consideration of the moving range of the sliding door 40 unlike the sliding door device 100. That is, the sliding door device 10 can be easily downsized.

  In the sliding door device 10 as well, the line type coil 65 is long along the opening / closing direction of the sliding door 40, but the line type coil 65 is composed of the sliding door device 100 (the main body 130) and the upper frame of a general automatic door. It is very small compared to the door opening and closing device built in.

  Further, when the motor 42 is attached to the sliding door 40, the motor 42 moves together with the sliding door 40, so that it is difficult to supply power to the motor 42. On the other hand, in the sliding door apparatus 10, the non-contact electric power feeding circuit 60 solves this subject by performing non-contact electric power feeding from the upper frame 20 side to the sliding door 40 side.

  Moreover, according to the non-contact electric power feeding circuit 60, the effect which is easy to arrange | position the apparatus which operate | moves with electricity on the sliding door 40 side is also acquired. For example, a touch sensor that operates by feeding power from the non-contact power feeding circuit 60 may be disposed on the sliding door 40. Thereby, it is possible to open the sliding door 40 triggered by the user touching the touch sensor. In addition, a lighting device that operates by feeding power from the non-contact power feeding circuit 60 may be disposed in the sliding door 40.

  The sliding door device 10 may further include a gear device 43 that is attached to the sliding door 40 and is a magnetic gear device that amplifies the torque generated by the motor 42 and transmits the amplified torque to the roller 44.

  When the gear device 43 has two gears that rotate with each other by meshing teeth, noise (gear sound) at the time of opening and closing the sliding door 40 may increase. For example, when the sliding door 40 is suddenly stopped, a large noise may occur. On the other hand, if the gear device 43 is a magnetic gear device, the first magnetic gear 43a and the second magnetic gear 43b rotate in a non-contact manner, so that noise can be reduced.

  Moreover, in the gear apparatus 43, since the 1st magnetic gear 43a and the 2nd magnetic gear 43b rotate without contact, the 1st magnetic gear 43a and the 2nd magnetic gear 43b do not wear. For this reason, the lifetime improvement of the sliding door apparatus 10 is realizable.

  The sliding door device 10 includes two sets of rollers 44 and motors 42, and the two rollers 44 are attached to the sliding door 40 side by side in the moving direction of the sliding door 40.

  Thereby, the sliding door apparatus 10 can stabilize the movement of the sliding door 40.

  The non-contact power supply circuit 60 converts the AC power obtained from the AC power source into DC power and outputs the DC power, and the DC output from the first AC-DC conversion circuit 61. An inverter circuit 63 that converts electric power into AC power and outputs it, and a line coil 65 that transmits AC power output from the inverter circuit 63 to the drive circuit 50 in a contactless manner. In addition, the drive circuit 50 receives the AC power transmitted by the line coil 65, and the second AC- that converts the AC power received by the pickup coil 51 into DC power and applies it to the motor 42. And a DC conversion circuit 52.

  With such a circuit configuration, the sliding door device 10 can drive the motor 42.

  The line coil 65 is an example of a power transmission unit, and the pickup coil 51 is an example of a power reception unit. In other words, the power transmission unit includes a line-type coil 65 (a coil extending along the rail 30) extending along the rail 30, and the power reception unit is a coil (pickup coil) that receives supply of AC power from the line-type coil 65. ) May be included.

  Thereby, the non-contact electric power feeding circuit 60 of the sliding door apparatus 10 can perform non-contact electric power feeding by an electromagnetic induction system. In addition, since the line-type coil 65 extends along the rail 30, even when the sliding door 40 moves along the rail 30, power feeding is not interrupted.

  The non-contact power supply circuit 60 may perform non-contact power supply by an electromagnetic resonance method using an electromagnetic resonance coupler (electromagnetic resonance coupler), or convert electric power into electromagnetic waves and transmit / receive via an antenna. You may perform non-contact electric power feeding by a radio wave system. That is, each of the power transmission unit and the power reception unit may be an electromagnetic resonance coupler or an antenna.

  Moreover, the rail 30 may be partially or entirely curved. That is, the sliding door device 10 can be applied to a curved sliding door (curved door).

(Other embodiments)
The sliding door device according to the embodiment has been described above, but the present invention is not limited to the above embodiment.

  For example, in the above embodiment, the non-contact power feeding circuit is attached to the upper frame, but may be attached to the lower frame (sill). That is, the non-contact power feeding circuit may be embedded under the floor. In this case, the roller is provided at the lower end of the sliding door and travels on a rail provided on the lower frame.

  In the above embodiment, the sliding door has been described as being installed in a house. However, the sliding door device according to the above embodiment can be applied to other sliding doors such as a sliding door provided at the entrance of a building. Applicable.

  Moreover, the moving direction of a moving target object is not specifically limited, The sliding door apparatus which concerns on the said embodiment may move a sliding door to a horizontal direction, and may move it to a perpendicular direction (vertical direction). Moreover, the sliding door apparatus which concerns on the said embodiment may be made to curve not only to move a sliding door linearly.

  Further, the circuit configuration described in the above embodiment is an example, and the present invention is not limited to the above circuit configuration. That is, like the above circuit configuration, a circuit that can realize a characteristic function of the present invention is also included in the present invention. For example, the present invention includes a device in which a device such as a switching device (transistor), a resistor, or a capacitor is connected in series or in parallel to a certain device within a range in which a function similar to the above circuit configuration can be realized It is. In other words, the term “connected” in the above embodiment is not limited to the case where two terminals (nodes) are directly connected, and the two terminals ( Node) is connected through an element.

  In the above embodiment, each component (for example, the first control unit and the second control unit) is configured by dedicated hardware or executed by executing a software program suitable for each component. May be. Each component may be realized by a program execution unit such as a CPU or a processor reading and executing a software program recorded on a recording medium such as a hard disk or a semiconductor memory.

  In addition, the general or specific aspect of the present invention may be realized as another device or system. For example, the present invention may be realized as a motor device that uses a window, a curtain, a blind, a shutter, or the like as a moving object instead of a sliding door.

  In addition, it is realized by variously conceiving various modifications conceived by those skilled in the art for each embodiment, or by arbitrarily combining the components and functions in each embodiment without departing from the spirit of the present invention. This form is also included in the present invention.

10, 100 Sliding door device 20, 120 Upper frame (structure)
30 Rail 40, 140 Sliding door 42 Motor 43 Gear device 44 Roller 50 Drive circuit 51 Pickup coil (power receiving unit)
52 Second AC-DC conversion circuit 60 Non-contact power supply circuit 61 First AC-DC conversion circuit 63 Inverter circuit 65 Line coil (power transmission unit)

Claims (5)

A sliding door device for moving a sliding door along a rail provided in a structure,
A roller attached to the sliding door and moving the sliding door along the rail by rotating in contact with the rail;
A motor attached to the sliding door;
A driving circuit attached to the sliding door and rotating the roller by driving the motor;
A sliding door device comprising: a non-contact power supply circuit that is attached to the structure and performs non-contact power supply to the drive circuit. The sliding door device according to claim 1, further comprising a magnetic gear device attached to the sliding door and amplifying torque generated by the motor and transmitting the amplified torque to the roller. The sliding door device includes two sets of the roller and the motor,
The sliding door device according to claim 1, wherein the two rollers are attached to the sliding door side by side in a moving direction of the sliding door. The non-contact power feeding circuit is:
A first AC-DC conversion circuit for converting AC power obtained from an AC power source into DC power and outputting the DC power;
An inverter circuit that converts direct current power output from the first AC-DC conversion circuit into alternating current power and outputs the alternating current power;
A power transmission unit that transmits AC power output from the inverter circuit to the drive circuit in a contactless manner;
The drive circuit is
A power receiving unit that receives AC power transmitted by the power transmitting unit;
The sliding door device according to claim 1, further comprising: a second AC-DC conversion circuit that converts AC power received by the power receiving unit into DC power and applies the DC power to the motor. The power transmission unit includes a line type coil extending along the rail,
The sliding door device according to claim 4, wherein the power reception unit includes a coil that receives supply of AC power from the line type coil.

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