blower

Abstract

Provided is a blower that controls differences in the way air makes contact that result from differences in the lateral rotation angle of a blowing unit.　A blower 1 according to the present disclosure comprises: a blowing unit that delivers air in a blowing direction determined by a lateral rotation angle and a longitudinal rotation angle; a lateral rotation unit that rotates the blowing unit about a lateral rotation axis so as to change the lateral rotation angle; a longitudinal rotation unit that rotates the blowing unit about a longitudinal rotation axis orthogonal to the lateral rotation axis so as to change the longitudinal rotation angle; and a control unit that executes an angle interlock mode in which the lateral rotation unit and the longitudinal rotation unit are controlled. The lateral rotation angle is the absolute value of an angle formed by the orientation of a vector obtained by projecting the blowing direction on a plane orthogonal to the lateral rotation axis, and a reference direction determined in advance. The longitudinal rotation angle is the absolute value of an angle formed by the blowing direction and the plane orthogonal to the lateral rotation axis. In the angle interlock mode, the longitudinal rotation angle when the lateral rotation angle is 0 degrees is not 0 degrees, and the longitudinal rotation angle when the lateral rotation angle is not 0 degrees is smaller than the longitudinal rotation angle when the lateral rotation angle is 0 degrees.

Description

[Technical Field]

[0001] The present disclosure relates to a blower. [Background technology]

[0002] A typical blower includes a blower unit with a fan and a support unit that supports the blower unit. One such blower, as disclosed in Patent Document 1, is a fan in which the blower unit's vertical and horizontal reciprocating motions are performed on independent rotation axes, allowing for vertical and horizontal reciprocating motions at any desired center position and reciprocating range. Operating an operating device on such a fan allows the user to start or stop the vertical reciprocating motion, start or stop the horizontal reciprocating motion, adjust the center position of rotation, and adjust the reciprocating range, etc. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2016-98740 Summary of the Invention [Problem to be solved by the invention]

[0004] A blower is used, for example, to blow air to people within the range of the blower, or to blow air from the blower onto laundry to dry it efficiently.

[0005] However, in the fan disclosed in Patent Document 1, when the air blower only moves back and forth horizontally, the trajectory of the intersection between the air blow direction and the target on any vertical plane in front of the air blowing range draws an arc shape that moves upward as the distance from the rotation center increases. Therefore, if the target to be blown, such as laundry or a person, is placed on any vertical plane in front of the air blowing range, the way the air hits the target will vary depending on the horizontal rotation angle.

[0006] The present disclosure has been made in consideration of the above-mentioned problems, and aims to suppress differences in the way wind hits. [Means for solving the problem]

[0007] The blower of the present disclosure includes a blower unit that blows air in a blowing direction determined by a horizontal rotation angle and a vertical rotation angle, a horizontal rotation unit that rotates the blower unit around a horizontal rotation axis to change the horizontal rotation angle, a vertical rotation unit that rotates the blower unit around a vertical rotation axis that is perpendicular to the horizontal rotation axis to change the vertical rotation angle, a control unit that operates an angle interlocking mode that controls the horizontal rotation unit and the vertical rotation unit, and a horizontal rotation angle detection unit that detects the horizontal rotation angle, wherein the horizontal rotation angle is the absolute value of the angle between the direction of a vector obtained by projecting the blowing direction onto a plane perpendicular to the horizontal rotation axis and a predetermined reference direction, and the vertical rotation angle is the absolute value of the angle between the blowing direction and the plane perpendicular to the horizontal rotation axis, and in the angle interlocking mode, when the horizontal rotation angle is 0 degrees, the vertical rotation angle is not 0 degrees, but the horizontal rotation angle detected by the horizontal rotation angle detection unit is obtained, and the vertical rotation unit is controlled so that the vertical rotation angle decreases as the obtained horizontal rotation angle increases. The blower of the present disclosure includes a blower unit that blows air in a blowing direction determined by a horizontal rotation angle and a vertical rotation angle, a horizontal rotation unit that rotates the blower unit around a horizontal rotation axis to change the horizontal rotation angle, a vertical rotation unit that rotates the blower unit around a vertical rotation axis that is perpendicular to the horizontal rotation axis to change the vertical rotation angle, and a control unit that performs an angle interlocking mode that controls the horizontal rotation unit and the vertical rotation unit, wherein the horizontal rotation angle is the absolute value of the angle between the direction of a vector obtained by projecting the blowing direction onto a plane perpendicular to the horizontal rotation axis and a predetermined reference direction, and the vertical rotation angle is the absolute value of the angle between the blowing direction and the plane perpendicular to the horizontal rotation axis, The control unit Angle Linkage Mode So, when the vertical rotation angle is 0, the airflow direction is A target object on a plane perpendicular to the horizontal reference direction, at a predetermined distance from the blower. The vertical rotation unit is controlled so that the distance from the intersection of the arrows to the intersection of the airflow direction and the target when the vertical rotation angle is greater than 0 remains constant even when the horizontal rotation angle changes. The blower of the present disclosure includes a blower unit that blows air in a blowing direction determined by a horizontal rotation angle and a vertical rotation angle, a horizontal rotation unit that rotates the blower unit around a horizontal rotation axis to change the horizontal rotation angle, a vertical rotation unit that rotates the blower unit around a vertical rotation axis that is perpendicular to the horizontal rotation axis to change the vertical rotation angle, a control unit that controls the horizontal rotation unit and the vertical rotation unit in an angle interlocking mode and a fixed vertical rotation angle mode that controls the vertical rotation angle to be constant regardless of the horizontal rotation angle, and an operation unit that accepts user operations. Equipped with The horizontal rotation angle is the absolute value of the angle between the direction of a vector projecting the airflow direction onto a plane perpendicular to the horizontal rotation axis and a predetermined reference direction, and the vertical rotation angle is the absolute value of the angle between the airflow direction and a plane perpendicular to the horizontal rotation axis.By operating the operating unit, the angle linked mode and the vertical rotation angle fixed mode are switched, and in the angle linked mode, the vertical rotation angle is not 0 degrees when the horizontal rotation angle is 0 degrees, and the vertical rotation angle when the horizontal rotation angle is not 0 degrees is smaller than the vertical rotation angle when the horizontal rotation angle is 0 degrees. [Effects of the Invention]

[0008] According to the present disclosure, it is possible to suppress differences in the way the wind hits objects on a vertical plane in front of the airflow range. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a perspective view of a blower according to a first embodiment. [Figure 2] 4 is a vector diagram showing the blowing direction of the fan according to the first embodiment. [Figure 3] 3 is a view showing the inside of the base and the support column of the fan according to the first embodiment. FIG. [Figure 4] 3 is a diagram showing an operation unit of the blower according to the first embodiment. FIG. [Figure 5] 2 is a view showing the inside of the blower unit and the support column of the blower according to the first embodiment. FIG. [Figure 6] FIG. 2 is a hardware configuration diagram of a computer of the fan according to the first embodiment. [Figure 7]1 is a functional block diagram of a blower according to a first embodiment. FIG. [Figure 8] 4 is a flowchart relating to control of an angle interlocking mode of the fan according to the first embodiment. [Figure 9] 4 is a plan view of the XY plane when the horizontal rotation angle of the fan according to the first embodiment is 0. FIG. [Figure 10] 10 is a cross-sectional view of the blower according to the first embodiment taken along line AA in FIG. 9. [Figure 11] 4 is a plan view of the XY plane when the horizontal rotation angle of the fan according to the first embodiment is θ. FIG. [Figure 12] 12 is a cross-sectional view of the blower according to the first embodiment taken along the line BB in FIG. 11. [Figure 13] 1 is a plan view of the XY plane when the horizontal rotation angle of the fan according to the first embodiment is θ1. [Figure 14] 14 is a cross-sectional view of the blower according to the first embodiment taken along line CC in FIG. 13. FIG. [Figure 15] 10 is a plan view of the XY plane when the horizontal rotation angle of the fan according to the first embodiment is θ2. FIG. [Figure 16] 16 is a cross-sectional view taken along line DD in FIG. 15 of the blower according to the first embodiment. FIG. [Figure 17] 10 is a calculation example showing the relationship between a horizontal rotation angle θ and a vertical rotation angle δ according to the first embodiment. [Figure 18] 14 is a cross-sectional view corresponding to the CC cross-sectional view of FIG. 13 when the horizontal rotation angle of the blower according to the comparative example is θ1. [Figure 19] 16 is a cross-sectional view corresponding to the DD cross-sectional view of FIG. 15 when the horizontal rotation angle of the blower according to the comparative example is θ2. [Figure 20] 10 is a plan view of the YZ plane showing an example of the operation of the blower according to the second embodiment. FIG. [Figure 21] FIG. 10 is a plan view showing the vertical rotation angle in the XZ plane of the fan according to the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, a blower according to an embodiment of the present disclosure will be described in detail with reference to the drawings, but the present disclosure is not limited to the embodiment.

[0011] Embodiment 1 FIG. 1 is a perspective view of a blower according to the first embodiment. In FIG. 1, coordinates are shown in a Cartesian coordinate system, with the X-axis, Y-axis, and Z-axis perpendicular to one another. The overall configuration of blower 1 will be described using FIG. 1. As shown in FIG. 1, blower 1 includes a blower unit 100 that generates air, a support unit 101 that supports the blower unit, a base unit 102 that supports blower unit 100 and support unit 101, and a protection unit 103 that protects fan 16, which is part of blower unit 100. Note that support unit 101 and base unit 102 of blower 1 according to the first embodiment correspond to the support unit that supports the blower unit.

[0012] As shown in Fig. 1, a disk-shaped base 102 supports the blower 100 and the support column 101. The base 102 also has an operation unit 19 that can be used to switch the power on and off for the blower 1, adjust the air volume, and adjust the vertical and horizontal rotation. Examples of adjusting the rotation include changing the rotation speed, rotation range, and rotation center. The base 102 also has a casing that is exposed to the outside, and the casing contains a horizontal rotation unit 31 and a horizontal rotation angle detection unit 32, which will be described later, inside.

[0013] As shown in FIG. 1 , the support column 101 is cylindrical and supports the blower 100 at a position higher than the floor. The support column 101 is provided with a height adjustment button 26. A user can adjust the height of the blower 1 to a desired level by pressing the height adjustment button 26 to raise or lower the support column 101, aligning it with one of the multiple protrusions on the support column 101, and then releasing the height adjustment button 26. The support column 101 is also provided with a base 102 that is rotatable laterally about a rotation axis AX1. In the first embodiment, the rotation axis AX1 is parallel to the Z-axis. With this configuration, the blower 100 and the support column 101 rotate laterally within a reciprocating range, which is their rotation range. The horizontal rotation section 31 of the blower 100 will be described later.

[0014] The blower unit 100 blows air in a direction determined by the horizontal and vertical rotation angles. As shown in FIG. 1, the blower unit 100 includes a fan 16 and a fan motor (not shown). The fan motor rotates the fan 16 about a rotation axis AX3, and the rotation of the fan 16 causes the fan to blow air in a direction parallel to the rotation axis AX3. In other words, in the blower 1 according to the first embodiment, the direction parallel to the rotation axis AX3 corresponds to the blowing direction. The fan 16 blows air by rotating an impeller. The fan 16 is an axial fan with blades attached to the center of the frame, which draws air from the rear of the blades and expels it to the front. This is because efficient air blowing can be achieved by directly facing the blower and the target. Furthermore, the fan 16 is not limited to the simple propeller shape shown in FIG. 1 and may be a counter-rotating fan or a reversible flow fan. The fan motor receives signals from the fan control unit 30a to drive, stop, and change the rotation speed. The fan motor has a cover 18 that covers the motor and vertical rotation unit 33. Furthermore, blower unit 100 is mounted on support unit 101 so as to be rotatable in the vertical direction about rotation axis AX2 in FIG. 1 . In the first embodiment, rotation axis AX2 is parallel to the Y-axis. Furthermore, rotation axis AX2, which corresponds to the vertical rotation axis, is perpendicular to rotation axis AX1, which corresponds to the horizontal rotation axis. Furthermore, for the sake of explanation, in blower 1 of the first embodiment, rotation axis AX3, which is the center of rotation of fan 16, intersects with the intersection of horizontal rotation axis AX1 and vertical rotation axis AX2, regardless of the vertical rotation angle, which will be described later.

[0015] The protective part 103 is a part that covers the fan 16 and prevents, for example, the user's hands or foreign objects from coming into contact with the fan 16. The protective part 103 has multiple wires that extend radially. A certain gap is provided between adjacent wires. The wind generated by the rotation of the fan 16 is blown out from the gaps formed in the protective part 103.

[0016] FIG. 2 is a vector diagram showing the airflow direction of the blower according to the first embodiment. The horizontal rotation angle and vertical rotation angle of the blower according to the first embodiment will be described with reference to FIG. 2. The components of the X, Y, and Z axes of the airflow direction vector Q are (QX1, QY1, QZ1). The airflow vector obtained by projecting the airflow direction vector Q of FIG. 2 onto a plane (corresponding to the XY plane) perpendicular to the horizontal rotation axis (rotation axis AX1) is QXY1. The components of QXY1 are (QX1, QY1, 0). In the first embodiment, the horizontal rotation angle is the absolute value θ of the angle between QXY1 and a predetermined reference direction. The components of the reference direction vector are (1, 0, 0). Therefore, the horizontal rotation angle is greater than 0 degrees whether the angle between QXY1 and the predetermined reference direction is positive or negative. For ease of explanation, the reference direction in FIG. 2 is perpendicular to the YZ plane, i.e., the positive X-axis direction. However, the present invention is not limited to this. The reference direction is determined in advance by the designer of the fan 1, etc. In the first embodiment, the vertical rotation angle is the absolute value δ of the angle between the airflow direction vector Q in FIG. 2 and a plane (corresponding to the XY plane) perpendicular to the horizontal rotation axis (AX1). The vertical rotation angle is equal to the angle between the airflow direction vector Q and QXY1. Therefore, the vertical rotation angle is greater than 0 degrees whether the angle between the airflow direction and the plane perpendicular to the horizontal rotation axis is a positive value or a negative value.

[0017] Fig. 3 is a diagram showing the inside of the base and the support column of the fan according to embodiment 1. For ease of explanation, Fig. 3 does not show the casing of base 102. As shown in Fig. 3, base 102 has a horizontal rotation unit 31 and a horizontal rotation angle detection unit 32 inside the casing. Horizontal rotation unit 31 has gear 10, bearing 15, and horizontal rotation motor 12 having gear 11. Furthermore, horizontal rotation angle detection unit 32 has a detection plate 13 and a sensor 14.

[0018] Bearing 15 is provided at the end of support part 101 on the base side. Support part 101 is rotatably held relative to base part 102 via bearing 15. Gear 10 is provided at the tip of support part 101 on the base side. The rotation axis of gear 10 coincides with AX1, the lateral rotation axis of the support part. Gear 11 is provided on base part 102, engages with gear 10, and is driven by lateral rotation motor 12, causing support part 101 to rotate laterally.

[0019] The horizontal rotation motor 12 is a stepping motor provided on the base 102. The horizontal rotation motor 12 can change the rotation speed and center of rotation in response to a pulse signal from the horizontal rotation control unit 30b.

[0020] The detection plate 13 is provided on the support part 101 and is located above the gear 10 at the end of the base part. The detection plate 13 has slits for position detection. The sensor 14 is provided on the base part 102 and reads the slits for position detection. The sensor 14 detects the horizontal rotation angle of the support part 101 based on the number of slits it reads, similar to existing sensors that detect rotation angles.

[0021] The control unit 30 is, for example, a control circuit configured with circuits, and controls the blower 1. More specifically, as shown in Fig. 7 described below, the control unit 30 has a fan control unit 30a, a horizontal rotation control unit 30b, and a vertical rotation control unit 30c. Each control unit controls the fan motor, the horizontal rotation motor 12, and the vertical rotation motor 22, respectively.

[0022] FIG. 4 is a diagram showing an operation unit of the blower according to the first embodiment. The configuration of operation unit 19 will be described using FIG. 4. Operation unit 19 has a power switch 311, an airflow increase switch 312, an airflow decrease switch 313, a horizontal rotation switch 314, a vertical rotation switch 315, a center position change switch 316, and a rotation range change switch 317. The power switch 311 faces the front of blower 1. Center position change switch 316 is a switch that changes the rotation center position of blower unit 100, and includes left direction change switch 316a, right direction change switch 316b, up direction change switch 316c, and down direction change switch 316d. Rotation range change switch 317 has a horizontal rotation range change switch 317a and a vertical rotation range change switch 317b.

[0023] The operation of the control unit 30 will be described for each switch. When the user presses the power switch 311 while the blower 1 is turned off, the control unit 30 starts driving the fan motor. Also, when the user presses the power switch 311 while the blower 1 is turned on, the control unit 30 stops driving the fan motor. When the user presses the airflow increase switch 312 or the airflow decrease switch 313, the control unit 30 changes the rotation speed of the fan motor in accordance with the command. When the user presses the vertical rotation switch 315 while the blower 1 is not rotating vertically, the control unit 30 drives the vertical rotation motor 22 to rotate the blower 1 clockwise to a predetermined angle about the rotation axis AX2, then return it to the reference direction, further rotate it counterclockwise to a predetermined angle, and then return it to the reference direction. When the user presses the horizontal rotation switch 314 while the blower 1 is not rotating horizontally, the control unit 30 drives the horizontal rotation motor 12 to perform automatic horizontal rotation, which involves rotating the blower unit 100 clockwise to a predetermined angle around the reference direction, with the front direction of the blower unit 100 as the reference direction, then returning it to the reference direction, rotating it counterclockwise to a predetermined angle, and then returning it to the reference direction.

[0024] Fig. 5 is a diagram showing the inside of the blower unit and the support column of the blower according to the first embodiment of the present disclosure. For ease of explanation, cover 18 of blower unit 100 is not shown in Fig. 5.

[0025] The vertical rotation unit 33 and vertical rotation angle detection unit 34 of the blower unit 100 will be described using Figure 5. The vertical rotation unit 33 of the blower unit 100 has a rotation shaft 25, a vertical rotation motor 22 having a gear 21, and a gear 20. The vertical rotation angle detection unit 34 of the blower unit 100 has a detection plate 23 and a sensor 24.

[0026] Rotating shaft 25 is an axis that enables vertical rotation of blower unit 100. Rotating shaft 25 rotatably holds blower unit 100 relative to support column 101. Gear 20 is provided on support column 101. Vertical rotation motor 22 having gear 21 is fixed to the blower unit, and by meshing with gear 20 to drive it, blower unit 100 rotates vertically.

[0027] The vertical rotation motor 22 is a stepping motor, and its properties are similar to those of the above-described horizontal rotation motor 12. The vertical rotation motor 22 can change the rotation speed and center of rotation according to a pulse signal from the vertical rotation control unit 30c.

[0028] The detection plate 23 is provided at the end of the support part 101 on the blower side, and has a slit for position detection. The sensor 24 is provided in the blower part 100, and reads the slit in the detection plate 23. The control part 30 is provided on the base part 102.

[0029] The sensor 24 is a slit sensor, and the method of detecting the rotation angle is the same as that of the sensor 14 described above.

[0030] The controller 30 controls the fan 1 in two modes: a fixed vertical rotation angle mode, in which the horizontal and vertical rotation angles of the fan 1 are not linked, and an angle linkage mode, in which the horizontal and vertical rotation angles of the fan 1 are linked. In the angle linkage mode, the controller 30 acquires the horizontal and vertical rotation angles of the fan 100 detected by the sensors 14 and 24, respectively, and drives the vertical rotation motor 22 to control the vertical rotation angle based on the acquired horizontal rotation angle. In the angle linkage mode, the controller 30 controls the fan 100 so that the vertical distance (i.e., the vertical height) at the position where the air reaches the target 210 (described below) is constant. In the angle linkage mode, the horizontal rotation angle θ satisfies the condition 0°<θ<90° except when the horizontal rotation angle θ returns to the reference direction.

[0031] The blowing target 210 is an object to which the blower 1 blows air. The blowing target 210 may be anything that has a length at least in a direction parallel to the rotation axis AX2, i.e., in the Y-axis direction. For example, a piece of laundry hanging from a clothesline extending in a direction parallel to the rotation axis AX2 may be used. Furthermore, when multiple objects are lined up in a line parallel to the rotation axis AX2, the multiple objects may be considered as a single blowing target 210. For example, small pieces of laundry or people lined up in a line in the Y-axis direction may be used.

[0032] Fig. 6 is a hardware configuration diagram of the computer of the fan according to embodiment 1. As shown in Fig. 6, the computer of the fan according to embodiment 1 is a microcontroller mounted on an electronic circuit. The computer includes a processor 40, a memory 41, a memory 42, and a hardware interface 43. These components are connected via a bus 44.

[0033] Memory 41 stores a program executed by processor 40. Memory 41 is also used as a work area for processor 40. In the angle interlocking mode of the first embodiment, memory 41 stores a program related to a method for controlling the vertical rotation angle of blower unit 100. Memory 41 is a non-volatile memory, such as a ROM (Read Only Memory).

[0034] Memory 42 reads and stores information necessary for program execution. In the angle interlocking mode of the first embodiment, information on the horizontal rotation angle and vertical rotation angle of blower unit 100 is read and stored. Memory 42 is a volatile memory, such as a random access memory (RAM). Memory 42 stores a distance X0 from the intersection of horizontal rotation axis AX1 and rotation axis AX2 to target 210, in a direction perpendicular to a plane parallel to horizontal rotation axis AX1 and vertical rotation axis AX2, i.e., parallel to the X-axis direction. Distance X0 is determined in advance by the designer of blower 1. Distance X0 is communicated to the user by means of, for example, being included in an instruction manual.

[0035] Processor 40 executes a program stored in memory 41. In the angle interlocking mode of the first embodiment, control unit 30 executes vertical rotation angle control of blower 1, thereby controlling the vertical rotation angle of blower unit 100. Processor 40 is, for example, a CPU (Central Processing Unit).

[0036] The hardware interface 43 connects the computer with the sensors 14, 24, and the switches of the operation receiving unit 19a, and transmits and receives signals.

[0037] 7 is a functional block diagram of the fan 1 according to Embodiment 1. The functional configuration of the fan section 100 will be described with reference to FIG.

[0038] The blower 1 has at least one operation unit 19. The operation unit 19 includes an operation receiving unit 19a and an operation transmitting unit 19b. The operation receiving unit 19a receives a signal including a command when a user presses a switch. The operation transmitting unit 19b acquires the signal received by the operation receiving unit 19a and transmits the signal to the control unit 30 related to the operation.

[0039] The control unit 30 includes a fan control unit 30a that controls the operation of the fan, a horizontal rotation control unit 30b that controls the horizontal rotation, and a vertical rotation control unit 30c that controls the vertical rotation of the blower unit 100.

[0040] The fan control unit 30a receives signals from the operation transmission unit 19b and transmits control signals to the fan motor to perform the above-mentioned control. These signals cause the fan motor to start and stop driving and change its rotation speed.

[0041] The horizontal rotation control unit 30b receives a signal from the operation transmission unit 19b and transmits a control signal to the horizontal rotation motor 12 to perform control that matches the operation content. This signal causes the horizontal rotation motor 12 to start and stop driving, change the horizontal rotation center, and change the horizontal rotation range.

[0042] The vertical rotation control unit 30c receives a signal from the operation transmission unit 19b and transmits a control signal to the vertical rotation motor 22 to perform control that matches the operation content. This signal causes the vertical rotation motor 22 to start and stop driving, change the center of vertical rotation, and change the vertical rotation range.

[0043] Specific commands issued by the operation transmitting unit 19b will be described. When the user presses the power switch 311 while the blower 1 is not powered on, the operation transmitting unit 19b transmits a signal to the fan control unit 30a to start rotation of the fan. Furthermore, when the user presses the power switch 311 while the blower 1 is powered on, the operation transmitting unit 19b transmits a signal to the fan control unit 30a to stop rotation of the fan. When the user presses the airflow increase switch 312, the operation transmitting unit 19b transmits a signal to the fan control unit 30a to increase the rotation speed of the fan. Furthermore, when the user presses the airflow decrease switch 313, the operation transmitting unit 19b transmits a signal to the fan control unit 30a to decrease the rotation speed of the fan. When the user presses the horizontal rotation switch 314 while the blower 1 is not rotating horizontally, the operation transmitting unit 19b transmits a signal to the horizontal rotation control unit 30b to start horizontal rotation of the support unit 101. Furthermore, when the user presses the horizontal rotation switch 314 while the blower 1 is rotating horizontally, the operation transmitter 19b transmits a signal to the horizontal rotation control unit 30b to stop the horizontal rotation of the support unit 101. When the user presses the left direction change switch 316a, the operation transmitter 19b transmits a signal to the horizontal rotation control unit 30b to change the center of horizontal rotation of the support unit 101 to the left. When the user presses the right direction change switch 316b, the operation transmitter 19b transmits a signal to the horizontal rotation control unit 30b to change the center of horizontal rotation of the support unit 101 to the right. When the user presses the + button of the horizontal rotation range change switch 317a, the operation transmitter 19b transmits a signal to the horizontal rotation control unit 30b to expand the horizontal rotation range of the support unit 101. Furthermore, when the - button of the horizontal rotation range change switch 317a is pressed, the operation transmitting unit 19b transmits to the horizontal rotation control unit 30b a signal to reduce the horizontal rotation range of the support unit 101. When the vertical rotation switch 315 is pressed by the user while the blower 1 is not rotating vertically, the operation transmitting unit 19b transmits to the vertical rotation control unit 30c a signal to start the vertical rotation of the blower unit 100.Furthermore, when the user presses the vertical rotation switch 315 while the blower 1 is rotating vertically, the operation transmitting unit 19b transmits to the vertical rotation control unit 30c a signal to stop the vertical rotation of the blower unit 100. When the user presses the upward direction change switch 316c, the operation transmitting unit 19b transmits to the vertical rotation control unit 30c a signal to change the center of vertical rotation of the blower unit 100 upward. When the user presses the downward direction change switch 316d, the operation transmitting unit 19b transmits to the vertical rotation control unit 30c a signal to change the center of vertical rotation of the blower unit 100 downward.

[0044] When the user operates the fan 1 in the angle interlocking mode while the fan 1 is in the fixed vertical rotation angle mode, the operation transmitting unit 19b transmits a signal to the horizontal rotation control unit 30b and the vertical rotation control unit 30c to operate the fan 1 in the angle interlocking mode. In the fan 1 according to the embodiment of the present disclosure, the operation to operate the fan 1 in the angle interlocking mode is performed by the user pressing and holding the horizontal rotation switch 314. Upon receiving the signal to operate the fan 1 in the angle interlocking mode, the horizontal rotation control unit 30b and the vertical rotation control unit 30c execute control in the angle interlocking mode, which will be described later. Furthermore, in the fan 1 according to the embodiment of the present disclosure, when the fan 1 is in the angle interlocking operation mode, the user presses and holds the horizontal rotation switch 314, which causes the operation transmitting unit 19b to transmit a signal to the horizontal rotation control unit 30b and the vertical rotation control unit 30c to operate the fan 1 in the fixed vertical rotation angle mode. Upon receiving the signal to operate the fan 1 in the fixed vertical rotation angle mode, the horizontal rotation control unit 30b and the vertical rotation control unit 30c terminate control in the angle interlocking mode, which will be described later.

[0045] Furthermore, before the user presses and holds horizontal rotation switch 314 to operate fan 1 in the angle interlocking mode, the user moves fan 1 so that the following two conditions are satisfied. The first condition is that fan unit 100 faces target 210 in the reference direction. The second condition is that the distance from the intersection of rotation axis AX1 and rotation axis AX2 to target 210 when the intersection is parallel to a direction perpendicular to a plane parallel to rotation axis AX1 and rotation axis AX2 is equal to distance X0 stored in memory 42.

[0046] Fig. 8 is a flowchart relating to the control of the angle interlocking mode of the fan according to embodiment 1. Next, the control content of the angle interlocking mode will be described in detail with reference to Fig. 8. The flowchart in Fig. 8 starts after the user moves fan 1 so that blower section 100 in the reference direction faces target 210.

[0047] Step S100 is performed when the angle linkage mode is started. In step S100, the horizontal rotation control unit 30b moves the position of the horizontal rotation axis of the blower unit 100 in a predetermined reference direction. Step S100 ends after the position of the horizontal rotation axis of the blower unit 100 has been moved in the reference direction.

[0048] Step S101 is performed when step S100 is completed. In step S101, the vertical rotation control unit 30c acquires a reference vertical rotation angle δ0. The reference vertical rotation angle δ0 acquired in step S101 is the vertical rotation angle when the direction of the horizontal rotation angle matches the reference direction. Step S101 ends when the vertical rotation control unit 30c acquires the reference vertical rotation angle δ0.

[0049] Step S102 is performed when step S101 is completed. In step S102, the lateral rotation control unit 30b drives the lateral rotation motor 12 to start automatic lateral rotation of the support unit 101. Step S102 ends when the lateral rotation motor 12 starts automatic lateral rotation.

[0050] Step S103 is performed when step S102 is completed. In step S103, the horizontal rotation angle detection unit 32 acquires the horizontal rotation angle θ, which is the angle with respect to the reference direction acquired in step S101. Step S103 ends when the horizontal rotation angle detection unit 32 acquires the horizontal rotation angle of the support unit 101.

[0051] Step S104 is processed when the horizontal rotation angle detection unit 32 detects the horizontal rotation angle of the support unit 101. In step S104, the vertical rotation control unit 30c determines the vertical rotation angle δ. Step S104 ends when the vertical rotation angle is determined.

[0052] Step S105 is processed when the vertical rotation angle is determined by the vertical rotation control unit 30c. In step S105, the vertical rotation control unit 30c drives the vertical rotation motor 22 so that the vertical rotation angle of the blower unit 100 coincides with the vertical rotation angle δ determined in step S104. Step S105 ends when the vertical rotation motor 22 is driven and the vertical rotation angle moves to the angle determined in step S104.

[0053] After step S105 is completed, the fan 1 performs step S103. That is, while the fan 1 is operating in the angle interlocking mode, the fan 1 repeatedly performs the processes from step S103 to step S105. The angle interlocking mode is ended by, for example, pressing and holding the horizontal rotation switch 314.

[0054] FIG. 9 is a plan view of the XY plane when the horizontal rotation angle of the fan according to embodiment 1 is 0. FIG. 10 is a cross-sectional view taken along line AA in FIG. 9 of the fan according to embodiment 1. FIG. 11 is a plan view of the XY plane when the horizontal rotation angle of the fan according to embodiment 1 is θ. FIG. 12 is a cross-sectional view taken along line BB in FIG. 11 of the fan according to embodiment 1. The calculation of the vertical rotation angle δ of the fan unit performed in step S104 will be described in detail with reference to FIGS. 9 to 12. Note that, as in FIG. 1, coordinates in FIGS. 9 to 12 are shown in a Cartesian coordinate system, with the X-axis, Y-axis, and Z-axis orthogonal to one another. Furthermore, the hollow arrows in FIGS. 9 to 11 indicate the direction of the air blown from fan 1.

[0055] First, as described above, as shown in FIGS. 9 and 10 , when the horizontal rotation angle is 0 and the reference vertical rotation angle is δ0, the distance from the intersection of the rotation axis AX1 and the rotation axis AX2 to the target 210 is determined by the user to be X0. Here, the intersection of the rotation axis AX1 and the rotation axis AX2 is designated as point Or. Furthermore, as shown in FIG. 10 , when the vertical rotation angle is δ0, the intersection of the rotation axis AX3 and the surface of the target 210 facing the fan 1 is designated as point P1. Furthermore, when the horizontal rotation angle is 0 and the vertical rotation angle is 0, the intersection of the rotation axis AX3 and the surface of the target 210 facing the fan 1 is designated as point P0. Furthermore, the distance in the Z-axis direction from point P0 to point P1 is designated as Z0. In this case, the relationship shown in Equation 1 holds.

[0056]

number

[0057] As shown in Figures 11 and 12, when the horizontal rotation angle is θ and the vertical rotation angle is 0, the intersection of the rotation axis AX3 and the surface of the blower 1 side of the blower target 210 is defined as point Q0. Also, as shown in Figure 12, when the horizontal rotation angle is θ and the vertical rotation angle is δ, the intersection of the rotation axis AX3 and the surface of the blower 1 side of the blower target 210 is defined as point Q. As shown in Figure 11, the distance from Or to Q0 on the XY plane is defined as LQ. In this case, the relationship shown in equation 2 holds.

[0058]

number

[0059] In the angle interlocking mode, the vertical height is controlled to be constant, so the distance in the Z-axis direction from Q0 to Q shown in Figure 12 is Z0. At this time, the relationship shown in equation 3 holds.

[0060]

number

[0061] When equation 2 is substituted into equation 3, the relationship shown in equation 4 is established.

[0062]

number

[0063] Then, by substituting the formula 1 into the formula 4 and rearranging, the relationship shown in the formula 5 is established.

[0064]

number

[0065] Then, rearranging Equation 5 yields the equation shown in Equation 6. Therefore, in step S104, the vertical rotation angle δ is calculated to satisfy Equation 6. Note that arctan in Equation 6 refers to arc tangent. Also, as shown in Equation 6, the argument of the arc tangent is the value obtained by multiplying tan(δ0) by cos(θ). Here, θ satisfies the relationship 0 degrees < θ < 90 degrees, so cos(θ) is always greater than 0 and less than 1. Therefore, from Equation 5 and Equation 6, when the horizontal rotation angle is θ, the vertical rotation angle δ is always smaller than the reference vertical rotation angle δ0.

[0066]

number

[0067] As described above, in the angle linkage mode, the control unit 30 performs control in accordance with the flowchart of Figure 8, so that on a plane perpendicular to the reference direction at a predetermined distance from the blower unit 100, i.e., on the surface of the blower 1 side of the blower target 210, the trajectory of the intersection between the blowing direction and the blowing target 210 becomes linear.

[0068] Fig. 13 is a plan view of the XY plane when the horizontal rotation angle of the fan according to embodiment 1 is θ1. Fig. 14 is a cross-sectional view taken along CC in Fig. 13 of the fan according to embodiment 1. Fig. 15 is a plan view of the XY plane when the horizontal rotation angle of the fan according to embodiment 1 is θ2. Fig. 16 is a cross-sectional view taken along DD in Fig. 15 of the fan according to embodiment 1. Using Figs. 13 to 16, the linkage between the horizontal rotation angle and the vertical rotation angle in the angle linkage mode will be described in detail. Here, θ1 and θ2 satisfy the relationship 0 degrees < θ1 < θ2 < 90 degrees.

[0069] 13 and 14, the intersection of rotation axis AX3 and the surface of blower 1 side of blower target 210 when the horizontal rotation angle is θ1 and the vertical rotation angle is 0 is defined as point Q10. Also, as shown in Fig. 14, the intersection of rotation axis AX3 and the surface of blower 1 side of blower target 210 when the horizontal rotation angle is θ1 and the vertical rotation angle is δ1 is defined as point Q1. Also, as shown in Fig. 13, the distance from Or to Q10 on the XY plane is defined as LQ1.

[0070] 15 and 16, the intersection of rotation axis AX3 and the surface of blower 1 side of blower target 210 when the horizontal rotation angle is θ2 and the vertical rotation angle is 0 is defined as point Q20. Also, as shown in Fig. 16, the intersection of rotation axis AX3 and the surface of blower 1 side of blower target 210 when the horizontal rotation angle is θ2 and the vertical rotation angle is δ2 is defined as point Q2. Also, as shown in Fig. 15, the distance from Or to Q20 on the XY plane is defined as LQ2.

[0071] Furthermore, in Equation 6, the larger the argument, the larger the arctangent value, and the larger the horizontal rotation angle θ, the smaller the argument. In other words, the larger the horizontal rotation angle θ, the smaller the value of δ, which is the left side of Equation 6. Therefore, the relationship δ1>δ2 holds due to the relationship θ1<θ2.

[0072] Figure 17 shows a calculation example showing the relationship between the rotation angle θ and the vertical rotation angle δ when X1 = 1 m and Z1 = 0.5 m. As shown in Figure 17, the vertical rotation angle δ reaches its maximum value when the rotation angle θ is 0, and as the value of θ increases, the vertical rotation angle δ is controlled to decrease.

[0073] FIG. 18 is a cross-sectional view corresponding to the C-C cross-sectional view of FIG. 13 when the horizontal rotation angle of the blower according to the comparative example is θ1. FIG. 19 is a cross-sectional view corresponding to the D-D cross-sectional view of FIG. 15 when the horizontal rotation angle of the blower according to the comparative example is θ2. Using FIGS. 18 and 19, the effects exhibited by the blower of Embodiment 1 will be described in comparison with the comparative example.

[0074] The blower 300 according to the comparative example is the same as the blower 1 according to Embodiment 1, except that control corresponding to the angle interlocking mode is not performed and the vertical rotation angle maintains δ0 regardless of the horizontal rotation angle.

[0075] As shown in FIG. 18, when the horizontal rotation angle is θ1 and the vertical rotation angle is δ0, the intersection point of the rotation axis AX3 and the surface of the blower 1 side of the air supply target 210 is defined as point Q3. Further, the distance in the Z-axis direction from point Q10 to Q3 is defined as Z3.

[0076] Also, as shown in FIG. 19, when the horizontal rotation angle is θ2 and the vertical rotation angle is δ0, the intersection point of the rotation axis AX3 and the line obtained by extending the surface of the blower 1 side of the air supply target 210 in the Z-axis direction is defined as point Q4. Further, the distance in the Z-axis direction from point P0 to Q4 is defined as Z4.

[0077] In the mathematical formula of Equation 2, the numerator on the right side is a constant value regardless of the horizontal rotation angle, but the denominator on the right side becomes smaller as the horizontal rotation angle θ increases. That is, LQ, which is the left side of Equation 2, becomes a larger value as the horizontal rotation angle increases. Therefore, due to the relationship 0 < θ1 < θ2, the relationship X0 < LQ1 < LQ2 holds.

[0078] Furthermore, the triangle formed by the points Or, P1, and P0 shown in FIG. 10, the triangle formed by the points Or, Q3, and Q10 shown in FIG. 18, and the triangle formed by the points Or, Q4, and Q20 shown in FIG. 19 are similar to each other. This is because the three types of triangles described above have the same angle δ0 at the vertex Or, the same right angle at the vertices P0, Q3, or Q4, and meet the condition for triangle similarity where two sets of angles are equal respectively.

[0079] Since the ratios of the lengths of the corresponding sides of similar figures are equal, from the relationship X0 < LQ1 < LQ2, the relationship Z0 < Z3 < Z4 holds. That is, when the blower unit is rotated horizontally while maintaining a constant angle regardless of the horizontal rotation angle, the vertical height, that is, the distance in the Z-axis direction, when reaching the air supply target 210 increases as the horizontal rotation angle increases. Therefore, due to the change in the distance in the Z-axis direction caused by the change in the horizontal rotation angle, there is a difference in the way the wind hits the air supply target. In particular, as shown in FIG. 19, depending on the magnitude of the horizontal rotation angle, the rotation axis AX3 and the air supply target 210 may not intersect. In this case, the wind blown out from the blower 300 will pass above the air supply target 210, and the wind from the blower 1 will not hit the air supply target 210.

[0080] On the other hand, as shown in FIGS. 10, 14, and 16, for the blower according to Embodiment 1, the vertical height, that is, the distance in the Z-axis direction, when reaching the air supply target 210 is constant as the horizontal rotation angle increases. Therefore, compared with the blower that rotates horizontally while maintaining a constant angle regardless of the horizontal rotation angle as in the comparative example, the blower 1 according to Embodiment 1 suppresses the difference in the way the wind hits due to the magnitude of the horizontal rotation angle.

[0081] As described above, the blower 1 according to the first embodiment includes a blower unit 100 that blows air in a blowing direction determined by the horizontal rotation angle and the vertical rotation angle, a horizontal rotation unit 31 that rotates the blower unit about a horizontal rotation axis to change the horizontal rotation angle, a vertical rotation unit 33 that rotates the blower unit about a vertical rotation axis that is perpendicular to the horizontal rotation axis to change the vertical rotation angle, and a control unit 30 that operates in an angle interlocking mode to control the horizontal rotation unit and the vertical rotation unit, wherein the horizontal rotation angle is the absolute value of the angle between the blowing direction projected onto a plane perpendicular to the horizontal rotation axis and a predetermined reference direction, and the vertical rotation angle is the absolute value of the angle between the blowing direction and a plane perpendicular to the horizontal rotation axis, and in the angle interlocking mode, the vertical rotation angle is not 0 degrees when the horizontal rotation angle is 0 degrees, and the vertical rotation angle when the horizontal rotation angle is not 0 degrees is smaller than the vertical rotation angle when the horizontal rotation angle is 0 degrees. In this configuration, in the angle linkage mode, the vertical rotation angle when the horizontal rotation angle is not 0 degrees is smaller than the vertical rotation angle when the horizontal rotation angle is 0 degrees, which has the effect of suppressing differences in the way the wind hits depending on the size of the horizontal rotation angle, compared to a blower that rotates horizontally while maintaining a constant vertical rotation angle regardless of the horizontal rotation angle.

[0082] Furthermore, the fan 1 according to the first embodiment has an additional configuration in which, in the angle interlocking mode, the vertical rotation angle when the horizontal rotation angle is a second angle greater than the first angle is smaller than the vertical rotation angle when the horizontal rotation angle is a first angle greater than 0 degrees. This additional configuration has the effect of further suppressing differences in the way the wind hits the fan depending on the horizontal rotation angle.

[0083] Furthermore, blower 1 according to embodiment 1 has, as an additional component, a horizontal rotation angle detection unit 32 that detects the horizontal rotation angle, and a configuration in which control unit 30 acquires the horizontal rotation angle detected by horizontal rotation angle detection unit 32 in the angle interlocking mode and controls the vertical rotation unit so that the vertical rotation angle decreases as the acquired horizontal rotation angle increases. This additional component has the effect of further suppressing differences in how the wind hits depending on the horizontal rotation angle.

[0084] Furthermore, the blower 1 according to the first embodiment has, as an additional component, a vertical rotation angle detection unit 34 that detects the vertical rotation angle, and the vertical rotation angle detection unit 34 detects a reference vertical rotation angle, which is the vertical rotation angle when the horizontal rotation angle is 0 degrees, and the control unit 30 is configured to control the vertical rotation unit in the angle interlocking mode so that the vertical rotation angle when the horizontal rotation angle is greater than 0 degrees is smaller than the reference vertical rotation angle. This additional component has the effect of further suppressing differences in the way the wind hits the fan depending on the horizontal rotation angle.

[0085] Furthermore, the blower 1 according to the first embodiment has an additional configuration in which, when the reference vertical rotation angle is δ0 and the vertical rotation angle when the horizontal rotation angle is θ is δ, the control unit 30 controls the vertical rotation unit 33 in the angle interlocking mode to satisfy the formula δ = arctan(tan(δ0) × cos(θ)). This additional configuration has the effect of further suppressing differences in the way the wind hits the fan depending on the horizontal rotation angle.

[0086] Furthermore, the fan 1 according to the first embodiment has an additional configuration in which, in the angle interlocking mode, the locus of intersection between the airflow direction and the target on a plane perpendicular to the reference direction at a predetermined distance from the blower unit is linear. This additional configuration has the effect of further suppressing differences in the way the air hits the target depending on the horizontal rotation angle.

[0087] Furthermore, blower 1 according to embodiment 1 has, as additional components, a base 102 that supports blower unit 100, and support column 101 that is disposed between blower unit 100 and base 102 and increases the distance between blower unit 100 and base 102 in a direction perpendicular to the reference direction. This additional component has the effect of enabling blower unit 100 to be positioned away from the floor surface on which base 102 is placed.

[0088] Furthermore, blower 1 according to embodiment 1 has, as an additional configuration, operation unit 19 that accepts user operation, and blower 1 has an angle interlocking mode and a fixed vertical rotation angle mode in which the vertical rotation angle is constant regardless of the horizontal rotation angle, and is configured to switch between the angle interlocking mode and the fixed vertical rotation angle mode by operating operation unit 19. With this additional configuration, the user can select the angle interlocking mode when control of the vertical rotation angle and horizontal rotation angle is required, and can select the fixed vertical rotation angle mode when control of the vertical rotation angle and horizontal rotation angle is not required, thereby achieving the effect of being able to use different modes depending on the situation.

[0089] Although the blower 1 of the first embodiment has a height adjustment button 26 on the support pillar and the height of the blower unit 100 is adjusted by pressing the height adjustment button 26, this is not limiting. For example, the blower 1 may have support pillars of multiple heights, and the support pillars may be detachable from the blower unit and the base, so that the user can use different support pillars depending on the height at which they want to blow air.

[0090] Furthermore, in the blower 1 of the first embodiment, the operation unit 19 is provided on the base 102, but this is not limited thereto. The operation unit may be provided on the blower unit or the support column. The operation unit may be configured as an operation device separate from the blower, such as a remote control, or may be configured to use a mobile terminal owned by the user as the operation unit using an application that causes the mobile terminal to function as the operation unit. The blower 1 may also be configured with multiple operation units. In the case of a configuration with multiple operation units, each operation unit may have a different function. For example, the operation unit provided on the base unit has a power switch, an airflow increase switch, and an airflow decrease switch, and the operation unit provided on the support column has a horizontal rotation switch and a vertical rotation switch.

[0091] Furthermore, although the blower 1 of the first embodiment includes a support column 101 and a base 102 as components corresponding to the support that supports the blower unit 100, the configuration of the support column is not limited to this. For example, the blower may have a configuration similar to a circulator in which the blower unit is supported only by a base without a support column. In this case, the base corresponds to the main body. Furthermore, for example, instead of the support column and base column, the blower may have a fixing section for fixing to a structure such as a wall or ceiling, and the fixing section supports the blower, similar to a wall-mounted fan or ceiling fan. In this case, the fixing section corresponds to the main body.

[0092] Furthermore, although blower 1 of the first embodiment includes horizontal rotation angle detection unit 32 and vertical rotation angle detection unit 34, this is not limiting. For example, a stepping motor rotates when a pulse signal is input, and the rotation angle per pulse is predetermined. Therefore, when a stepping motor is used as the horizontal rotation motor, the control unit can acquire the pulse signal input to the horizontal rotation motor and calculate the rotation angle based on the number of pulses included in the pulse signal. In this case, the control unit can acquire the horizontal rotation angle even without horizontal rotation angle detection unit 32. The same is true for a vertical rotation motor.

[0093] Furthermore, in the blower 1 of the first embodiment, the vertical rotation angle δ of the blower unit 100 is calculated using the reference vertical rotation angle δ0 and the horizontal rotation angle θ, and the vertical rotation angle δ corresponding to the horizontal rotation angle θ is determined. However, this is not limited to this. For example, the reference vertical rotation angle of the blower 1 can be set in stages, and a numerical table corresponding to the horizontal rotation angle and the vertical rotation angle for each reference vertical rotation angle may be stored in memory. The vertical rotation angle may be determined according to the horizontal rotation angle based on this table. Furthermore, when the blower rotates horizontally at a constant speed, the horizontal rotation angle is determined according to time. In this case, the vertical rotation angle may be determined according to time as long as the vertical rotation angle obtained when the blower rotates horizontally from the reference direction by the horizontal rotation angle is larger than the vertical rotation angle obtained when the blower rotates horizontally from the reference direction by a horizontal rotation angle larger than the vertical rotation angle.

[0094] Furthermore, although the blower 1 of the first embodiment maintains a constant vertical height in the angle interlocking mode, this is not limited to this. For example, depending on the accuracy of the rotation angle of the vertical rotation motor, it may be difficult to precisely match the vertical rotation angle to the calculated vertical rotation angle, making it difficult to maintain a constant vertical height. In particular, as shown in Equation 6, the larger the horizontal rotation angle, the smaller the change in vertical rotation angle for a given change in horizontal rotation angle, making it more difficult to match the calculated vertical rotation angle. In such a case, for example, when the horizontal rotation angle is between 0 and a predetermined angle, the control unit may control the vertical rotation angle to match the calculated vertical rotation angle, and when the horizontal rotation angle is greater than the predetermined angle, the control unit may control the vertical rotation angle to match the calculated vertical rotation angle at the predetermined angle. Furthermore, the control unit does not need to strictly match the vertical rotation angle to the calculated vertical rotation angle. It is sufficient for the blower to at least control the angle interlocking mode so that the vertical rotation angle when the horizontal rotation angle is greater than 0 degrees is smaller than the vertical rotation angle when the horizontal rotation angle is 0 degrees. By performing this type of control, it is possible to suppress differences in the way the wind hits the fan depending on the horizontal rotation angle, compared to a blower like the comparative example, which rotates horizontally while maintaining a constant vertical rotation angle regardless of the horizontal rotation angle.

[0095] Furthermore, in the blower 1 of the first embodiment, the rotation axis AX3, which is the center of rotation of the fan 16, intersects with the intersection of the rotation axis AX1 and the rotation axis AX2 regardless of the setting of the vertical rotation angle described below, but this is not limited to this. For example, due to factors such as design limitations, the intersection of the rotation axis AX1 and the rotation axis AX2 may differ from the intersection of the rotation axis AX3 with the rotation axis AX1 or AX2. However, as long as the vertical rotation angle when rotated horizontally from the reference direction by a horizontal rotation angle greater than the vertical rotation angle when rotated horizontally from the reference direction by a vertical rotation angle greater than the horizontal rotation angle, the same effect as that of the blower of the first embodiment can be achieved even if the intersection is different.

[0096] Embodiment 2 A description will be given of a blower 2 according to embodiment 2. The blower 2 according to embodiment 2 differs from the blower 1 according to embodiment 1 in that it has a plurality of angle interlocking modes in which the vertical rotation angle when the horizontal rotation angle is 0 degrees is different. The configuration, hardware configuration, flowchart, and functional block diagram of the blower 2 according to embodiment 2 are the same as those of the blower 1 according to embodiment 1, except for the fact that it has a plurality of angle interlocking modes, and therefore description thereof will be omitted.

[0097] The fan 2 according to the second embodiment has a plurality of angle interlocking modes. The plurality of angle interlocking modes each have a different vertical rotation angle when the horizontal rotation angle is 0 degrees, i.e., a different reference vertical rotation angle. The fan 2 according to the second embodiment has a total of four angle interlocking modes, from the first angle interlocking mode to the fourth angle interlocking mode. As the number of the angle interlocking mode increases, the reference vertical rotation angle decreases, with the first angle interlocking mode having the largest reference vertical rotation angle and the fourth angle interlocking mode having the smallest reference vertical rotation angle.

[0098] Before implementing the angle interlocking mode in the second embodiment, the user positions blower 2 directly facing target 220. At this time, it is desirable that in the first angle interlocking mode, the rotation axis AX3 of blower 2, i.e., the intersection between the airflow direction and target 220, is near the upper end. Furthermore, the transition from the fixed vertical rotation angle mode to the angle interlocking mode is performed by operating operation unit 19, as in the first embodiment.

[0099] An example of operation in the angle linkage mode in embodiment 2 will be described using Figures 20 and 21. Figure 20 is a diagram showing an example of operation in the YZ plane in the angle linkage mode. Figure 21 is a plan view showing the vertical rotation angle in the XZ plane of a blower according to embodiment 2. The arrows in Figure 20 indicate an example of the trajectory of the intersection between the airflow direction of blower target 220 on a plane perpendicular to the reference direction and blower target 220. In blower 2 according to embodiment 2, when a user performs an operation to switch to the angle linkage mode, the first angle linkage mode to the fourth angle linkage mode are performed in order.

[0100] First, the control unit 30 performs the first angle interlocking mode. In the first angle interlocking mode, the intersection point starts at R0 in Fig. 20 and moves to the right along the trajectory RY1 to R1 while keeping the position in the Z-axis direction constant.

[0101] After the intersection point has moved to R1, the control unit 30 performs the second angle linkage mode. Because the reference vertical rotation angle in the second angle linkage mode is smaller than in the first angle linkage mode, the position of the intersection point in the Z-axis direction is lower. Therefore, when the control unit 30 changes from the first angle linkage mode to the second angle linkage mode, the intersection point moves from R1 from top to bottom along the trajectory RZ1 to R2. Next, in the second angle linkage mode, the intersection point moves from R2 to right to left along the trajectory RY2 to R3, while maintaining a constant position in the Z-axis direction.

[0102] After the intersection point moves to R3, the control unit 30 performs the third angle linkage mode. Because the reference vertical rotation angle in the third angle linkage mode is smaller than in the second angle linkage mode, the position of the intersection point in the Z-axis direction is even lower. Therefore, when the control unit 30 changes from the second angle linkage mode to the third angle linkage mode, the intersection point moves from R3 from top to bottom along the trajectory RZ2 to R4. Next, in the third angle linkage mode, the intersection point moves from R4 to left to right along the trajectory RY3 to R5, while maintaining a constant position in the Z-axis direction.

[0103] After the intersection point moves to R5, the control unit 30 performs the fourth angle linkage mode. Because the reference vertical rotation angle in the fourth angle linkage mode is smaller than in the third angle linkage mode, the position of the intersection point in the Z-axis direction is even lower. Therefore, when the control unit 30 changes from the third angle linkage mode to the fourth angle linkage mode, the intersection point moves from R5 to R6 from top to bottom along the trajectory RZ3. Next, in the fourth angle linkage mode, the intersection point moves from R6 to right to left along the trajectory RY4 to R7, while maintaining a constant position in the Z-axis direction.

[0104] After the intersection point moves to R7, the control unit 30 performs the first angle linkage mode. The first angle linkage mode has a larger reference vertical rotation angle than the fourth angle linkage mode, and the position of the intersection point in the Z-axis direction is higher. Therefore, when the control unit 30 changes from the fourth angle linkage mode to the first angle linkage mode, the intersection point moves from R7 to R0 along the trajectory RZ4 from top to bottom. After returning to R0, the intersection point repeats the above movement.

[0105] 20, the distance from R1 to R2 is WZ1, the distance from R3 to R4 is WZ2, and the distance from R5 to R6 is WZ3. WZ4 is the height in the Z-axis direction from the height in the Z-axis direction to R6 and R7 when the vertical rotation angle δ of the blower unit is 0 degrees.

[0106] As in the first embodiment, the horizontal rotation angle is expressed as the absolute value of the angle between the airflow direction vector projected onto a plane perpendicular to the horizontal rotation axis and a predetermined reference direction. The position of the reference direction in the second embodiment is the same as in the first embodiment. As in the first embodiment, the vertical rotation angle is expressed as the absolute value of the angle between the airflow direction vector and a plane perpendicular to the horizontal rotation axis. In the multiple angle linkage modes in the second embodiment, the reference vertical rotation angle is different. The horizontal rotation angle θ at any position is in the range of 0 degrees < θ < 45 degrees, except when the horizontal rotation angle is 0 degrees. As shown in FIG. 21 , if the reference vertical rotation angle in the first angle linkage mode is δY4 + δY3 + δY2 + δY1, the reference vertical rotation angle in the second angle linkage mode is δY4 + δY3 + δY2, the reference vertical rotation angle in the third angle linkage mode is δY4 + δY3, and the reference vertical rotation angle in the third angle linkage mode is δY4, then the relationships in the following equations (7) to (10) hold.

[0107]

number

[0108]

number

[0109]

number

[0110]

number

[0111] An example of control of the vertical rotation angle when changing the angle interlocking mode in embodiment 2 will be described. The values ​​required for controlling the vertical rotation angle in embodiment 2 are distances X1, Z3, WZ1, WZ2, WZ3, and WZ4 in the X-axis direction between blowing target 220 and blower 200 when the horizontal rotation angle is 0 degrees.

[0112] By changing the angle linkage mode with different standard vertical rotation angles in this way, it is possible to further reduce differences in the way the wind hits the target object in the vertical and horizontal directions, such as a rectangular shape.

[0113] As described above, blower 2 according to embodiment 2, like blower 1 according to embodiment 1, comprises blower unit 100 that blows air in a blowing direction determined by the horizontal rotation angle and the vertical rotation angle, horizontal rotation unit 31 that rotates the blower unit about a horizontal rotation axis to change the horizontal rotation angle, vertical rotation unit 33 that rotates the blower unit about a vertical rotation axis that is perpendicular to the horizontal rotation axis to change the vertical rotation angle, and control unit 30 that operates in an angle interlocking mode to control the horizontal rotation unit and the vertical rotation unit, wherein the horizontal rotation angle is the absolute value of the angle between the direction of a vector obtained by projecting the blowing direction onto a direction perpendicular to the horizontal rotation axis and a predetermined reference direction, and the vertical rotation angle is the absolute value of the angle between the blowing direction and a plane perpendicular to the horizontal rotation axis, and in the angle interlocking mode, the vertical rotation angle is not 0 degrees when the horizontal rotation angle is 0 degrees, and the vertical rotation angle when the horizontal rotation angle is not 0 degrees is smaller than the vertical rotation angle when the rotation angle is 0 degrees. Therefore, the fan 2 according to the second embodiment also achieves the same effects as the fan 1 according to the first embodiment.

[0114] Furthermore, as an additional configuration, the blower 2 according to the second embodiment has a configuration in which the control unit 30 performs a first angle interlocking mode, which is an angle interlocking mode in which the vertical rotation angle is set to a predetermined first vertical rotation angle when the horizontal rotation angle is 0 degrees, and a second angle interlocking mode, which is an angle interlocking mode in which the vertical rotation angle is set to a second vertical rotation angle smaller than the first vertical rotation angle when the horizontal rotation angle is 0 degrees, and the control unit 30 performs the second angle interlocking mode after performing the first angle interlocking mode. This additional configuration has the effect of suppressing differences in how the wind hits the target in the vertical direction.

[0115] Furthermore, blower 2 according to the second embodiment has an additional configuration in which controller 30 performs the second angle interlocking mode and then performs the first angle interlocking mode again. This additional configuration has the effect of further reducing the difference in how the air blows on the target in the vertical direction.

[0116] Although blower 2 of the second embodiment has four angle interlocking modes with different reference vertical rotation angles, from the first angle interlocking mode to the fourth angle interlocking mode, the present invention is not limited to this, and multiple reference vertical rotation angles may have different angle interlocking modes. Also, the blower may have a predetermined number of angle interlocking modes with different reference vertical rotation angles, and the user may select the number of angle interlocking modes to use from the predetermined number of angle interlocking modes.

[0117] In addition, in the fan 2 of the second embodiment, the first angle linkage mode is performed in order from the first angle linkage mode to the fourth angle linkage mode, and the intersection moves from top to bottom, but this is not limited to this, and the fourth angle linkage mode is performed in order from the fourth angle linkage mode to the first angle linkage mode, and the intersection moves from bottom to top. In addition, in the fan 2 of the second embodiment, the start position of each angle linkage mode is the right end or left end of the blowing target 220, but this is not limited to this, and the start position may be the center of the blowing target in the Y direction.

[0118] 1 blower, 2 blower, 10 gear, 11 gear, 12 horizontal rotation motor, 13 detection plate, 14 sensor, 15 bearing, 16 fan, 18 cover, 19 operation unit, 19a operation receiving unit, 19b operation transmitting unit, 20 gear, 21 gear, 22 vertical rotation motor, 23 detection plate, 24 sensor, 25 rotating shaft, 26 height adjustment button, 30 control unit, 30a fan control unit, 30b horizontal rotation control unit, 30c vertical rotation control unit, 31 horizontal rotation unit, 32 horizontal rotation angle detection unit, 33 vertical rotation unit, 34 vertical rotation angle detection unit, 35 horizontal rotation angle transmission unit, 36 vertical rotation angle transmission unit, 40 processor, 41 memory, 42 memory, 43 hardware interface, 44 bus, 100 blower unit, 101 support unit, 102 Base part, 103 protective part, 210 airflow target, 220 airflow target, 311 power switch, 312 airflow increase switch, 313 airflow decrease switch, 314 horizontal rotation switch, 315 vertical rotation switch, 316 center position change switch, 316a left direction change switch, 316b right direction change switch, 316c upward direction change switch, 316d downward direction change switch, 317 rotation range change switch, 317a horizontal rotation range change switch, 317b vertical rotation range change switch.

Claims

1. a blower that blows air in a blowing direction determined by a horizontal rotation angle and a vertical rotation angle; a horizontal rotation unit that rotates the blower unit around a horizontal rotation axis to change the horizontal rotation angle; a vertical rotation unit that rotates the blower unit around a vertical rotation axis that is perpendicular to the horizontal rotation axis to change the vertical rotation angle; a control unit that performs an angle linkage mode to control the horizontal rotation unit and the vertical rotation unit; a horizontal rotation angle detection unit that detects the horizontal rotation angle; Equipped with the horizontal rotation angle is an absolute value of an angle between a direction of a vector obtained by projecting the air blowing direction onto a plane perpendicular to the horizontal rotation axis and a predetermined reference direction, the vertical rotation angle is an absolute value of an angle between the air blowing direction and a plane perpendicular to the horizontal rotation axis, In the angle interlocking mode, when the horizontal rotation angle is 0 degrees, the vertical rotation angle is not 0 degrees, The fan acquires the horizontal rotation angle detected by the horizontal rotation angle detection unit, and controls the vertical rotation unit so that the vertical rotation angle decreases as the acquired horizontal rotation angle increases.

2. a blower that blows air in a blowing direction determined by a horizontal rotation angle and a vertical rotation angle; a horizontal rotation unit that rotates the blower unit around a horizontal rotation axis to change the horizontal rotation angle; a vertical rotation unit that rotates the blower unit around a vertical rotation axis that is perpendicular to the horizontal rotation axis to change the vertical rotation angle; a control unit that performs an angle linkage mode to control the horizontal rotation unit and the vertical rotation unit; Equipped with the horizontal rotation angle is an absolute value of an angle between a direction of a vector obtained by projecting the air blowing direction onto a plane perpendicular to the horizontal rotation axis and a predetermined reference direction, the vertical rotation angle is an absolute value of an angle between the air blowing direction and a plane perpendicular to the horizontal rotation axis, The control unit In the angle linkage mode, A blower that controls the vertical rotation unit so that the distance from the intersection of the air blowing direction and the target to be blown on a plane perpendicular to the horizontal reference direction, a predetermined distance from the blowing unit, when the vertical rotation angle is 0, to the intersection of the air blowing direction and the target to be blown when the vertical rotation angle is greater than 0, remains constant even when the horizontal rotation angle changes.

3. a blower that blows air in a blowing direction determined by a horizontal rotation angle and a vertical rotation angle; a horizontal rotation unit that rotates the blower unit around a horizontal rotation axis to change the horizontal rotation angle; a vertical rotation unit that rotates the blower unit around a vertical rotation axis that is perpendicular to the horizontal rotation axis to change the vertical rotation angle; an angle linkage mode for controlling the horizontal rotation unit and the vertical rotation unit; a control unit that performs control in a fixed vertical rotation angle mode that performs control to keep the vertical rotation angle constant regardless of the horizontal rotation angle; It has an operation unit that accepts user operations, the horizontal rotation angle is an absolute value of an angle between a direction of a vector obtained by projecting the air blowing direction onto a plane perpendicular to the horizontal rotation axis and a predetermined reference direction, the vertical rotation angle is an absolute value of an angle between the airflow direction and a plane perpendicular to the horizontal rotation axis, and the operation unit is operated to switch between the angle interlocking mode and the vertical rotation angle fixed mode; In the angle interlocking mode, when the horizontal rotation angle is 0 degrees, the vertical rotation angle is not 0 degrees, A blower in which the vertical rotation angle when the horizontal rotation angle is not 0 degrees is smaller than the vertical rotation angle when the horizontal rotation angle is 0 degrees.

4. a vertical rotation angle detection unit that detects the vertical rotation angle, The vertical rotation angle detection unit detects the vertical rotation angle when the horizontal rotation angle is 0 degrees. Detect the reference vertical rotation angle, The blower according to claim 1 , wherein, in the angle interlocking mode, the control unit controls the vertical rotation unit so that the vertical rotation angle is smaller than the reference vertical rotation angle when the horizontal rotation angle is larger than 0 degrees.

5. The reference vertical rotation angle is δ0, the horizontal rotation angle is θ, and the horizontal rotation angle is θ. When the vertical rotation angle at the time is δ, In the angle interlocking mode, the control unit The blower according to claim 4, wherein the vertical rotation unit is controlled so as to satisfy the formula (θ).

6. In the angle interlocking mode, when the horizontal rotation angle is a first angle greater than 0 degrees, When the horizontal rotation angle is a second angle that is larger than the first angle, the vertical rotation angle is The blower according to claim 1 , wherein the vertical rotation angle is smaller in the case where the rotation angle is greater than the vertical rotation angle.

7. a base portion that supports the blower portion; The horizontal base is disposed between the air blowing unit and the base, and the distance between the air blowing unit and the base is The blower according to claim 1 , further comprising: support columns spaced apart in a direction perpendicular to the axial direction.

8. The control unit is configured to set the vertical rotation angle when the horizontal rotation angle is 0 degrees as a predetermined value. a first angle interlocking mode in which the angle interlocking mode is set to a first vertical rotation angle; A second vertical rotation angle when the angle is 0 degrees is smaller than the first vertical rotation angle. a second angle linkage mode in which the vertical rotation angle is set to a second vertical rotation angle when the horizontal rotation angle is 0 degrees, and a third angle linkage mode in which the vertical rotation angle is set to a third vertical rotation angle when the horizontal rotation angle is 0 degrees, which is smaller than the second vertical rotation angle; The control unit performs the first angle linkage mode and then performs the second angle linkage mode. The blower according to claim 1 , wherein the third angle interlocking mode is performed and the third angle interlocking mode is performed.

9. The blower according to claim 8 , wherein the control unit performs the first angle interlocking mode again after performing the third angle interlocking mode.

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