JP2013217291A - Air-blowing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air-blowing device equipped with an automatic oscillating mechanism and yet capable of achieving space saving.SOLUTION: Vertical oscillation is enabled by causing a casing 20 to turn about a substantially horizontal turning axis 10 disposed behind a fan motor 12. Thereby, an oscillating mechanism 30 composed of a motor or the like for driving the turning axis 10 can be accommodated inside the casing 20, and more space saving can be achieved compared to a case where an oscillating mechanism is provided outside a casing.

Description

  The present invention relates to a blower capable of swinging up and down.

  An impeller (fan) included in the blower is covered with a fan guard. In particular, in a blower configured as a circulator, a fan and a fan drive motor are generally housed in one casing having a function as a fan guard (see, for example, Patent Document 1). .

  In addition, the conventional circulator can adjust the air blowing angle in the vertical direction by rotatably supporting the outer peripheral surface of the casing housing the fan and the fan drive motor by a pair of left and right support members. There are many things that are configured.

Registered Utility Model Registration No. 3104900

  The circulator is used indoors and is preferably space-saving. However, in the conventional circulator as described above, since the support member is provided on the outer peripheral surface of the casing, when an automatic swing mechanism is to be provided by a driving device such as a motor, it is driven further outside the outer peripheral surface of the casing. There is a problem that it is necessary to provide a device and it is difficult to save space.

  This invention is made | formed in view of such a situation, and it aims at providing the air blower which can aim at space saving, providing an automatic swing mechanism.

  A blower according to the present invention includes a casing that houses a motor and an impeller that is attached to the output shaft of the motor, and a stand that supports the casing so as to be rotatable about a rotating shaft whose axial direction is substantially horizontal. A driving device that rotates the casing around the rotation shaft, and the rotation shaft is disposed at a position separated from the motor on the side opposite to the mounting side of the impeller. It is characterized by being.

  The blower according to the present invention is characterized in that it includes a restricting means for restricting a rotation range of the casing by the driving means so that an elevation angle of the output shaft is less than 90 degrees.

  The air blower according to the present invention is characterized in that the restricting means restricts a rotation range of the casing by the driving means so that an elevation angle of the output shaft is 88 degrees or less.

  In the present invention, the rotating shaft of the casing is provided on the rear side of the motor that drives the impeller. As a result, the driving means for rotating the casing can be accommodated inside the casing, and it is not necessary to provide a driving device outside the casing, so that the entire apparatus can be saved in space.

  Further, in the present invention, the rotation range of the casing is restricted so that the elevation angle of the motor output shaft is less than 90 degrees, more preferably 88 degrees or less. The movement of the center of gravity is suppressed.

According to the present invention, it is possible to save space while providing the automatic swing mechanism by the driving means.
In addition, according to the present invention, since the occurrence of center of gravity movement when the air blowing direction is upward is suppressed, the stability of the posture of the entire apparatus can be enhanced.

It is a front view of the air blower which concerns on this Embodiment. It is a side view of the air blower concerning this embodiment. It is sectional drawing in the III-III line of FIG. It is a front view which shows an air blower in case a ventilation direction becomes upward. It is a side view which shows an air blower in case a ventilation direction becomes upward. It is sectional drawing in the VI-VI line of FIG. It is a schematic diagram which shows the structure of the control means which controls the rotation range of a casing. It is a block diagram which shows the structure of the control system of the air blower which concerns on this Embodiment.

Hereinafter, the present invention will be specifically described with reference to the drawings showing embodiments thereof.
FIG. 1 is a front view of a blower device 1 according to the present embodiment, FIG. 2 is a side view thereof, and FIG. 3 is a cross-sectional view taken along line III-III in FIG. The blower 1 according to the present embodiment is configured as a floor-standing circulator. 1-3, the attitude | position from which the ventilation direction by the air blower 1 becomes a horizontal direction is shown.

The blower 1 includes a stand 14 placed on a floor or a shelf, and a casing 20 that is rotatably supported by the stand 14.
The stand 14 is provided on a pedestal portion 141 that is formed in a circular shape in plan view, a support column 142 that is erected vertically from the rear side from the center of the pedestal component 141, and an upper side of the support column 142. And a casing support part 143 that rotatably supports the casing 20 in which the fan motor 12 is housed. The casing 20 houses a fan motor 12 that drives the fan 11 for generating an air flow.

  The casing 20 has a rotation shaft 10 in a substantially horizontal direction (lateral direction), and the casing support portion 143 includes a pair of left and right bearing portions 40 (see FIG. 7) that support the rotation shaft 10. In the casing 20, a swing mechanism unit 30 including a swing motor 31 is provided, and a driving force by the swing motor 31 is transmitted to the rotary shaft 10 through a plurality of gears such as a reduction gear 32. By rotating the casing 20 around the rotation shaft 10, the casing 20 is swung in the vertical direction, and the blowing direction by the fan 11 is changed in the vertical direction.

  The casing support part 143 is configured to be movable in the vertical direction with respect to the support column part 142. By operating a button 143 a provided on the support column part 142, the casing support part 143 is moved up and down, and the casing 20 It is configured so that the height can be set. Moreover, the casing support part 143 is pivotally supported by the support | pillar part 142 so that rotation in the left-right direction is possible. Thus, the casing 20 can be swung in the left-right direction, and the blowing direction by the fan 11 can be changed in the left-right direction. The blower device 1 includes a motor 143b for rotating the casing support portion 143 around the axial length direction of the support portion 142 in order to automatically swing the left and right direction.

  The fan 11 of the blower 1 includes, for example, three blade members and is attached to the output shaft 121 of the fan motor 12. By being driven by the fan motor 12, the fan 11 rotates in a predetermined direction (clockwise as viewed from the front), and generates an air flow on the side opposite to the fan motor 12. That is, in the side view shown in FIG. 2, the air flow generated by the fan 11 is configured to be sent to the left side of the fan 11. Hereinafter, the downstream side in the blowing direction is the front side of the casing 20, and the upstream side in the blowing direction is the rear side of the casing 20.

  The casing 20 includes a motor housing portion 21 in which the fan motor 12 and the vertical swing mechanism portion 30 are provided, a fan guard portion 22 that covers the outer periphery and the rear of the fan 11, and a cover 23 that covers the front of the fan 11. . The motor housing portion 21 and the fan guard portion 22 are integrally formed, and the cover 23 is detachably attached to the fan guard portion 22.

  The motor housing portion 21 includes a first housing portion 211 that houses the fan motor 12 and a second housing portion 212 that houses the swing mechanism portion 30. In addition, the blower device 1 according to the present embodiment includes an ion generator 213a, and the motor housing portion 21 accommodates the ion generator 213a in addition to the first and second storage portions 212. The 3rd accommodating part 213 is provided.

The first accommodating portion 211 is provided in the vicinity of the front center of the motor housing portion 21 and includes an opening 211 a that projects the output shaft 121 of the fan motor 12 toward the fan guard portion 22. The fan motor 12 is fixed in the first housing portion 211 with the output shaft 121 protruding forward from the opening 211a.
The second housing portion 212 is provided in the vicinity of the rear center of the motor housing portion 21 (behind the first housing portion 211), and houses the swing mechanism portion 30 that rotates the casing 20 in the vertical direction. . In the present invention, one of the features is that the rotating shaft 10 of the casing 20 is disposed at a position separated from the fan motor 12 to the side opposite to the mounting side of the fan 11 (that is, behind the fan motor 12). It is said.
The 3rd accommodating part 213 is provided in the front upper part (upper side of the 1st accommodating part 211) of the motor housing part 21, and accommodates the ion generator 213a in the inside. An ion delivery port 213b is provided on the front side of the third housing portion 213. Ions generated from the ion generator 213a are diffused into the fan guard portion 22 through the ion delivery port 213b and are carried forward by the air flow accompanying the rotation of the fan 11.

  The fan guard portion 22 has a circular opening edge 221 in front view on the front side, and the cover 23 is configured to be detachably attached through the opening edge 221. Further, the motor housing portion 21 described above is integrally formed on the rear side of the fan guard portion 22. Slits 222 and 223 are provided in the outer peripheral portion and the rear portion of the fan guard portion 22. When the fan 11 is driven, air outside the apparatus is taken into the fan guard portion 22 through the slits 222 and 223. The air flow is generated by the rotation of.

  The cover 23 is formed in a circular shape when viewed from the front, and includes a large number of wind-off members 231, 231, 231,... Provided radially from the center, as shown in FIG. The blower device 1 is configured to change the direction of the wind to be diffused forward and outward by the fan 11 by a wind-cutting member 231 provided on the cover 23 so as to improve straightness in the blowing direction.

  The cover 23 has an opening edge portion 232 having an outer diameter slightly larger than the outer diameter of the opening edge portion 221 of the fan guard portion 22. A plurality of locking grooves are formed in the circumferential direction on the inner peripheral surface of the opening edge 232. Further, the same number of locking projections as the locking grooves are formed on the opening edge portion 221 on the front side of the fan guard portion 22. The user aligns the locking groove on the cover 23 side and the locking projection on the fan guard portion 22 side, inserts the locking groove on the cover 23 side into the locking projection on the fan guard portion 22 side, The cover 23 is attached to the fan guard portion 22 by engaging the both by rotating the 23 in the circumferential direction.

  The cover 23 includes an annular partition wall 233 having an outer diameter smaller than the inner diameter of the cover outer peripheral surface and provided to face the cover outer peripheral surface. As shown in FIG. 1, the inner diameter of the partition wall 233 is configured to be larger than the outer diameter of the fan 11. The air flow generated by the rotation of the fan 11 passes through the inside of the partition wall 233 and is sent out of the blower 1. On the other hand, a gap formed by the fitting portion of the cover 23 and the partition wall 233 is an opening through which air flows from the outside of the blower 1 to the inside of the casing 20. In other words, in the present embodiment, the air flow in the downstream direction by the fan 11 and the air flow in the upstream direction flowing from the outside of the apparatus are separated by the partition wall 233. Thereby, since interference between the air flow flowing from the outside of the apparatus and the air flow in the downstream direction by the fan 11 is reduced, the air flow by the fan 11 is weakened or the straightness in the air blowing direction is reduced. It is avoided.

  4 is a front view showing the blower device 1 when the blowing direction is upward, FIG. 5 is a side view thereof, and FIG. 6 is a sectional view taken along line VI-VI in FIG. In FIGS. 4-6, the attitude | position from which the ventilation direction by the air blower 1 becomes upward is shown. One feature of the present invention is that the rotation range of the casing 20 is regulated so that the output shaft 121 of the fan motor 12 is less than 90 degrees, more preferably 88 degrees or less in the elevation angle region. Moreover, the air blower 1 regulates the rotation range of the casing 20 so that the depression angle is 10 degrees or less.

  FIG. 7 is a schematic diagram showing the configuration of the restricting means for restricting the rotation range of the casing 20. As described above, the casing support portion 143 includes the pair of left and right bearing portions 40 that support the rotating shaft 10 of the casing 20 at both ends. The casing 20 is configured to rotate around the rotation shaft 10 by the driving force of the swing motor 31 provided in the swing mechanism unit 30. The bearing portion 40 is provided with a recess into which the end of the rotating shaft 10 is fitted. The rotating shaft 10 is supported by the casing support portion 143 by fitting both ends of the rotating shaft 10 into the recesses of the pair of left and right bearing portions 40, respectively.

  The bearing unit 40 includes a regulating member 41 that is erected in the axial direction of the rotating shaft 10. The restricting member 41 has an upper contact surface 411 for restricting the rotation range in the elevation angle region of the casing 20 and a lower contact surface 412 for restricting the rotation range in the depression angle region. A projecting piece 35 that protrudes outward is formed on the casing of the swing mechanism portion 30. When the casing 20 rotates upward around the rotation shaft 10, the projecting piece 35 becomes the upper contact surface. The protrusion 35 abuts against the lower abutment surface 412 when the casing 20 is pivoted downward around the pivot shaft 10.

  In the present embodiment, when the projecting piece 35 comes into contact with the upper contact surface 411, the projecting piece 35 is set so that the elevation angle of the output shaft 121 of the fan motor 12 is less than 90 degrees, more preferably 88 degrees or less. And the positional relationship of the upper contact surface 411 is adjusted in advance. Further, when the projecting piece 35 comes into contact with the lower contact surface 412, the positional relationship between the projecting piece 35 and the lower contact surface 412 so that the depression angle of the output shaft 121 of the fan motor 12 is 10 degrees or less. Is pre-adjusted.

  FIG. 8 is a block diagram showing the configuration of the control system of the blower 1 according to the present embodiment. The blower device 1 includes an operation unit 101, a remote control signal receiving unit 102, a control unit 103, first and second motor drivers 104 and 105, a fan motor 12, and a swing motor 31. In FIG. 8, the configuration of the control system for causing the head to swing in the left-right direction and the configuration of the control system for controlling the operation of the ion generator 213a are not shown.

  The operation unit 101 is provided on the front side of the pedestal unit 141, for example, and includes various operation buttons. The operation buttons included in the operation unit 101 include an operation button for starting or stopping air blowing, an operation button for adjusting the air volume, and an operation button for starting or stopping the swinging of the casing 20 in the vertical direction. When any operation button is pressed by a user operation, the operation unit 101 outputs a signal indicating that to the control unit 103.

  The remote control signal receiving unit 102 receives an infrared signal transmitted from a remote controller (remote controller) (not shown). Similar to the operation unit 101, the remote controller includes an operation button for starting or stopping air blowing, an operation button for adjusting the air volume, and an operation button for starting or stopping the vertical swing of the casing 20. When any operation button is turned on or off by a user operation, the remote controller transmits an infrared signal indicating that fact. When receiving the infrared signal from the remote controller, the remote control signal receiving unit 102 decodes the infrared signal and outputs a signal corresponding to the operation by the remote controller to the control unit 103.

  The control unit 103 includes, for example, a microprocessor. When the control unit 103 receives a signal output from the operation unit 101 or the remote control signal receiving unit 102, the control unit 103 performs control according to the received signal. For example, when the control unit 103 receives a signal indicating a blow start instruction from the operation unit 101 or the remote control signal receiving unit 102, the control unit 103 sends a control signal to the first motor driver 104 to start driving the fan motor 12 that is a DC motor. Output. The first motor driver 104 that has received this control signal turns on the current to the fan motor 12 and starts driving the fan motor 12.

  In addition, when the control unit 103 receives a signal indicating an instruction to start swinging in the vertical direction from the operation unit 101 or the remote control signal receiving unit 102, the control unit 103 outputs a control signal instructing to start driving the swinging motor 31 that is a stepping motor. 2 Output to motor driver 105. Upon receiving this control signal, the second motor driver 105 alternately outputs a pulse signal for rotating the output shaft of the swing motor 31 forward by a predetermined angle and a pulse signal for rotating the output shaft by a predetermined angle in the reverse direction. The swing of the casing 20 in the vertical direction by the swing motor 31 is performed. In the present embodiment, since the rotation range is physically restricted by the restriction member 41 provided in the bearing portion 40, it is not necessary to perform the angle control of the casing 20 by the control of the second motor driver 105. For this reason, the second motor driver 105 has a pulse that rotates the swing motor 31 in the opposite direction to the pulse signal that rotates the swing motor 31 in the forward direction within an angle range (for example, 100 degrees or more) that exceeds the rotation range of the casing 20. What is necessary is just to set it as the structure which outputs a signal alternately.

  When the control unit 103 receives a signal indicating an up / down swing command from the operation unit 101 or the remote control signal receiving unit 102, the control unit 103 outputs a control signal to stop driving the swing motor 31 to the second motor driver 105. Output to. At this time, the second motor driver 105 stops outputting the pulse signal for driving the swing motor 31.

  As described above, in the present embodiment, the casing 20 is pivoted about the substantially horizontal pivot shaft 10 disposed behind the fan motor 12 so that the vertical swing is performed. . Thereby, it is possible to accommodate the swing mechanism part 30 comprised by the motor etc. which drive the rotating shaft 10 in the casing 20, and compared with the case where a swing mechanism is provided in the outer side of the casing 20, Space can be saved.

  Further, in the present embodiment, the casing 20 can be swung in the vertical direction by the driving force of the swing motor 31, and the blowing direction can be automatically changed in the vertical direction. When the casing 20 is swung in the vertical direction, the swing mechanism unit 30 transmits the driving force by the swing motor 31 to the rotating shaft 10 through a plurality of gears such as a reduction gear 32 to thereby remove the casing 20. It is turned around the turning shaft 10. When the casing 20 faces upward, due to the presence of backlash in the swing mechanism unit 30, a sudden center of gravity change of the casing 20 may occur, and the attitude of the blower 1 may become unstable. In the present embodiment, a regulating member 41 that regulates the rotation range of the casing 20 is provided, and the casing is arranged such that the output shaft of the fan motor 12 is less than 90 degrees, more preferably 88 degrees or less in the elevation angle region. Since the rotation range of 20 is regulated, it is possible to suppress the sudden change in the center of gravity of the casing 20 as described above and maintain the stability of the attitude of the blower 1.

The above-described embodiment is an example in all respects, and should be considered not restrictive. The scope of the present invention is not intended to include the above-described meanings, but is intended to include meanings equivalent to the claims and all modifications within the scope of the claims.
In addition, as long as the effect of the present invention is obtained, the blower 1 may include components that are not disclosed in the embodiment.

DESCRIPTION OF SYMBOLS 1 Blower 10 Rotating shaft 11 Fan 12 Fan motor 14 Stand 20 Casing 31 Swing motor

Claims (3)

In a blower provided with a casing that houses a motor and an impeller attached to an output shaft of the motor, and a stand that supports the casing so as to be rotatable about a rotation shaft whose axial direction is substantially horizontal.
Drive means for rotating the casing around the rotation axis;
The air blower characterized in that the rotating shaft is arranged at a position separated from the motor on the side opposite to the mounting side of the impeller.   The blower according to claim 1, further comprising a regulating unit that regulates a rotation range of the casing by the driving unit so that an elevation angle of the output shaft is less than 90 degrees.   The blower according to claim 2, wherein the restricting means restricts a rotation range of the casing by the driving means so that an elevation angle of the output shaft is 88 degrees or less.

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