Blower

Abstract

To provide a blower that suppresses rattling during left-right oscillating motion and improves horizontal stability. [Solution] The blower comprises a blower unit, a base unit that supports the blower unit, and an oscillating mechanism disposed within the base unit that causes the blower unit to oscillate relative to the base unit, wherein the oscillating mechanism comprises an oscillating motor, a motor base having an upper surface on which the oscillating motor is arranged, and a transmission mechanism that transmits the rotation of the oscillating motor to the motor base, the transmission mechanism supporting the motor base from a lower surface facing the opposite side of the upper surface.

Description

Technical Field

[0001] The present invention relates to a blower.

Background Art

[0002] Conventionally, a circulator used for stirring and circulating the air in a space has been known. In Patent Document 1, glass balls that can roll freely are arranged inside a pedestal portion, the lower part of the pedestal supports the upper part of the pedestal through these glass balls, and a circulator is disclosed in which the upper part of the pedestal can swing left and right with respect to the lower part of the pedestal.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the left and right swinging mechanism of the conventional circulator, since it is composed of a link and an arm, there is room for improvement in performing a swinging operation while maintaining the levelness.

Means for Solving the Problems

[0005] The present invention has been made in view of the above problems, and an object thereof is to provide a blower capable of improving the levelness during a swinging operation.

[0006] One aspect of the present invention is a blower comprising: a blower unit; a base unit supporting the blower unit; and an oscillating mechanism disposed within the base unit for causing the blower unit to oscillate relative to the base unit, wherein the oscillating mechanism comprises: an oscillating motor; a motor base having an upper surface on which the oscillating motor is arranged; and a transmission mechanism for transmitting the rotation of the oscillating motor to the motor base, the transmission mechanism supporting the motor base from a lower surface facing the opposite side of the upper surface.

[0007] With the blower configuration described above, the motor base is supported from below by the transmission mechanism, which improves the horizontal stability during the oscillating motion of the blower and suppresses rattling in the horizontal plane. As a result, the horizontal level can be maintained during the oscillating motion of the blower.

[0008] Preferably, in the blower described above, a projection is formed on the lower surface of the motor base that protrudes downward toward the transmission mechanism, and the motor base is in contact with the transmission mechanism at the projection, while a gap is left between it and the transmission mechanism in the portion excluding the projection.

[0009] With the blower configuration described above, friction during the oscillating motion of the blower can be reduced compared to a configuration in which the entire lower surface of the motor base is in contact with the transmission mechanism. This effectively suppresses rattling in the horizontal plane during the oscillating motion of the blower.

[0010] Preferably, in the blower described above, the protrusion includes an inner protrusion that protrudes downward toward the transmission mechanism from the radially inner side of the lower surface of the motor base, and an outer protrusion that protrudes downward toward the transmission mechanism from the radially outer side of the lower surface of the motor base.

[0011] According to the blower configuration described above, since it has an inner protrusion and an outer protrusion as protrusions, the horizontal stability of the motor base can be further improved.

[0012] Preferably, in the blower described above, the protruding portion has an annular shape.

[0013] With the blower configuration described above, the horizontal stability of the motor base can be further improved.

[0014] Preferably, in the blower described above, a through hole is formed in the motor base at a position including the center of the oscillation of the blower section, and the transmission mechanism has a shaft portion that is inserted into the through hole.

[0015] With the blower configuration described above, the horizontal stability of the motor base can be further improved.

[0016] Preferably, the blower further comprises a power cord that extends outward from the base and a cap that is detachable from the base, the cap having a holding portion for holding the power cord.

[0017] With the blower configured as described above, the power cord can be held securely.

[0018] Preferably, in the blower described above, the blowing section includes a fan, a fan motor that rotates the fan, and a cover that houses the fan and the fan motor, wherein the cover has an air intake and an air outlet, and the air intake is formed to include a position that overlaps with the fan motor when viewed from the rear of the blowing section.

[0019] With the blower configuration described above, the air drawn in from the intake port can easily pass around the fan motor. As a result, the fan motor can be more easily air-cooled.

[0020] Preferably, the blower further comprises a vertical oscillation motor that causes the blowing section to oscillate vertically relative to the base section, and a motor cover that is arranged to cover the vertical oscillation motor and has a plurality of holes formed in it.

[0021] According to the blower with the above structure, air can easily come into contact with the vertical head swing motor, making it easier to air-cool the vertical head swing motor.

Brief Description of the Drawings

[0022] [Figure 1] FIG. 1 is an external perspective view of the blower seen from the front. [Figure 2] FIG. 2 is a perspective view of the left and right head swing mechanism seen from the bottom. [Figure 3] FIG. 3 is a perspective view of the left and right head swing mechanism seen from the top. [Figure 4] FIG. 4 is a cross-sectional view of the left and right head swing mechanism along the vertical direction. [Figure 5] FIG. 5 is an exploded perspective view of the left and right head swing mechanism seen from the bottom. [Figure 6] FIG. 6 is an exploded perspective view of the left and right head swing mechanism seen from the top. [Figure 7] FIG. 7 is a perspective view of the blower with the cap removed seen from the bottom. [Figure 8] FIG. 8 is a view showing the cap and the power cord. [Figure 9] FIG. 9 is a view of the blower seen from the rear. [Figure 10] FIG. 10 is a perspective view showing the vertical head swing mechanism and its peripheral structure.

Modes for Carrying Out the Invention

[0023] Hereinafter, the blower according to an embodiment of the present invention will be specifically described with reference to the drawings. The following embodiments are examples of the present invention and do not limit the technical scope of the present invention in a restrictive manner. In each drawing, the same reference numerals are assigned to the same components, and the description thereof may be omitted in some cases.

[0024] In this specification, when the blower 1 is positioned on an installation surface (e.g., a horizontal floor), the upper side in the vertical direction is referred to as "upper" or "upward," and the lower side in the vertical direction is referred to as "lower" or "downward." The vertical direction may also be referred to as the "up and down direction." The direction in which air is blown out from the blower 1 is referred to as "forward," and the opposite side is referred to as "rear." The direction extending both forward and rearward may also be referred to as the "front-rear direction." The direction perpendicular to the up and down direction and the front-rear direction may also be referred to as the "left-right direction." These directions are for convenience in explaining the blower 1 according to this embodiment and are not intended to limit the interpretation of the present invention.

[0025] [Exterior view of blower 1] Figure 1 is an external perspective view of the blower 1 according to this embodiment. The blower 1 is a circulator, and the spiral grille (Figure 1), which is part of a sphere, is used to improve the reach of the airflow.

[0026] As shown in Figure 1, the blower 1 has a blower unit 2 and a base unit 3. The base unit 3 is positioned below the blower unit 2 and supports the blower unit 2. The blower unit 2 is supported by the base unit 3 so that it can rotate around an axis that extends in the vertical direction. That is, the blower unit 2 can rotate in the left-right direction (lateral direction) relative to the base unit 3. The blower unit 2 can also rotate in the up-down direction relative to the base unit 3. The rotation of the blower unit 2 in the left-right direction around a rotation axis that extends in the vertical direction relative to the base unit 3 is sometimes called "left-right oscillation" or "left-right oscillation". The rotation of the blower unit 2 in the up-down direction around a rotation axis that extends horizontally relative to the base unit 3 is sometimes called "up-down oscillation" or "up-down oscillation".

[0027] [Air blower unit 2] The air blower unit 2 is divisible into a front cover 21 and a rear grille 22 at approximately the midpoint in the front-to-rear direction. The air blower unit 2 has a spherical appearance when the front cover 21 and the rear grille 22 are combined. As shown in Figure 1, a front grille 25 is detachably attached to the front end of the front cover 21 (the end opposite to the rear grille 22). More specifically, the front grille 25 is detachable from the front cover 21 by rotating it in the circumferential direction and includes a plurality of spirally arranged fins 26. As a result, the air is blown out while concentrated near the center of the front grille 25, enabling highly directional airflow.

[0028] Inside the air blower unit 2 are a propeller fan, a fan motor 27 (Figure 9) that rotates the propeller fan, and an up-and-down oscillation mechanism including an up-and-down oscillation motor 61 (Figure 10). That is, the propeller fan, fan motor 27, and up-and-down oscillation mechanism are housed in the cover of the air blower unit 2 (front grille 25, front cover 21, and rear grille 22). The cover of the air blower unit 2 has an air outlet 23 (the gap between adjacent fins 26) at the front (Figure 1) and an air intake 24 at the rear. The propeller fan is connected to the output shaft of the fan motor 27 and is rotated around its axis by the fan motor 27. More specifically, the propeller fan includes a cylindrical boss and a plurality of blades provided at circumferential intervals on the outer surface of the boss, and the tip of the output shaft of the fan motor 27 is inserted into the boss. When the propeller fan rotates, air is drawn into the cover from the intake port at the rear of the blower 1, pressurized by the propeller fan, and then blown out from the outlet 23 at the front.

[0029] [Base section 3] The base section 3 is a pedestal that includes a portion that rests on a surface such as the floor, and the power cord 5 is routed outwards from the rear. As shown in Figure 1, the base section 3 includes a bottom plate 31 located below and a bottom cover 32 located above the bottom plate 31. The lower part of the bottom cover 32 has a cylindrical shape with a smaller diameter than its upper part, and this lower part is inserted into the bottom plate 31. A space is provided inside the base section 3, and components such as an operation board for controlling various operations of the blower 1, a power supply board, and a left-right oscillation mechanism 4 (Figure 2), which will be described later, are arranged in this internal space. The bottom cover 32 is rotatable left-right relative to the bottom plate 31, thereby enabling the left-right oscillation of the blower section 2. The bottom plate 31 and the bottom cover 32 are each formed in a circular shape when viewed from above.

[0030] As shown in Figure 1, a support column 321 extending upward is formed on the upper surface of the bottom cover 32, behind the center of the circle. As shown in Figure 10, a recess is formed on the upper surface of the support column 321 into which the lower end of the arm portion 64, which will be described later, is inserted.

[0031] As shown in Figure 1, an operation button 323 is provided on the upper surface of the bottom cover 32, in front of the support column 321. The operation buttons 323 include, for example, a power button to switch the power on / off, an airflow button to adjust the airflow of the blower unit 2, an oscillation button to switch the oscillation operation of the blower unit 2, and a mode button to switch the operating mode of the blower 1. When a user operates an operation button 323, a control unit mounted on the control board detects the operation and performs various controls according to the operation.

[0032] A cylindrical large-diameter gear fixing part (not shown) is formed in the center of the bottom plate 31. This large-diameter gear fixing part is connected to the large-diameter gear 44 (Figure 2) of the left-right swivel mechanism 4, thereby fixing the large-diameter gear 44 to the bottom plate 31.

[0033] [Left and Right Swivel Mechanism 4] The blower 1 includes a left-right oscillation mechanism 4 that causes the blower unit 2 to oscillate left and right relative to the base unit 3 (Figure 2). In this specification, the left-right oscillation mechanism 4 may be simply referred to as the "oscillating mechanism".

[0034] Figures 2 to 6 show the left-right swivel mechanism 4. Figure 2 is a perspective view of the left-right swivel mechanism 4 from below. Figure 3 is a perspective view of the left-right swivel mechanism 4 from above. Figure 4 is a vertical cross-sectional view of the left-right swivel mechanism 4 along the vertical direction. Figure 5 is a perspective view of the left-right swivel mechanism 4 from below with the large-diameter gear 44 removed. Figure 6 is a perspective view of the left-right swivel mechanism 4 from above with the large-diameter gear 44 removed.

[0035] As shown in Figures 2 to 6, the left-right swivel mechanism 4 consists of a left-right swivel motor 41, a motor base 42, a small-diameter gear 43, and a large-diameter gear 44. The large-diameter gear 44 is positioned approximately in the center of the bottom plate 31, and the motor base 42 is fixed to the lower surface of the bottom cover 32.

[0036] The left-right oscillation motor 41 is driven when the air blower unit 2 oscillates left and right. The left-right oscillation motor 41 is, for example, a synchronous motor and is capable of rotational drive in both directions. This allows the air blower unit 2 to rotate alternately to the right and to the left.

[0037] The motor base 42 supports the left-right oscillating motor 41. As shown in Figure 4, the left-right oscillating motor 41 is positioned so that its lower surface 411 abuts against the upper surface 421 of the motor base 42. As shown in Figure 3, the left-right oscillating motor 41 includes two flange portions 412 that protrude radially outward from its lower surface 411, and these flange portions 412 are connected to the motor base 42 by fixing members such as screws.

[0038] The output shaft of the left-right oscillating motor 41 is inserted into a through hole formed in the motor base 42, and the tip of the output shaft is inserted into the central hole of the small-diameter gear 43. As a result, the left-right oscillating motor 41 and the small-diameter gear 43 are positioned with the motor base 42 in between them in the vertical direction. When the left-right oscillating motor 41 is driven, the small-diameter gear 43 connected to the output shaft of the left-right oscillating motor 41 rotates in the circumferential direction. As shown in Figure 2, multiple teeth 431 are formed on the outer circumference of the small-diameter gear 43, spaced apart from each other along the entire circumferential direction. The teeth 431 of the small-diameter gear 43 mesh with the teeth 441 of the large-diameter gear 44. Therefore, when the small-diameter gear 43 rotates, the large-diameter gear 44 rotates in the opposite direction to the small-diameter gear 43. The large-diameter gear 44 is rotatable relative to the motor base 42.

[0039] As shown in Figure 5, the lower part of the motor base 42 is an annular section 424. A cylindrical through-hole 425 extending vertically is formed in the center of the annular section 424. A large-diameter gear 44 is connected to the lower surface of the annular section 424.

[0040] As shown in Figure 4, the large-diameter gear 44 has a cylindrical shaft portion 444 extending vertically in its center. Also, as shown in Figure 5, a portion of the outer circumference of the large-diameter gear 44 has multiple teeth 441 spaced apart in the circumferential direction. The teeth 441 are provided only in the portion of the outer circumference of the large-diameter gear 44 necessary for meshing with the small-diameter gear 43 (the portion facing the small-diameter gear 43) (Figure 2). The outer diameter of the shaft portion 444 is smaller than the inner diameter of the through hole 425 of the motor base 42 and is inserted into the through hole 425 (see Figure 4). As will be described later, the shaft portion 444 is the center of the oscillation of the blower 2 by the left-right oscillation mechanism 4, so the through hole 425 is formed in a position that includes the center of the oscillation of the blower 2. As shown in Figure 4, the shaft portion 444 decreases in diameter from the bottom to the top.

[0041] As shown in Figures 5 and 6, the large-diameter gear 44 has a cylindrical first connecting portion 445 with a through hole 442 and a cylindrical second connecting portion 446 with a through hole 443. Both the first connecting portion 445 and the second connecting portion 446 are formed to protrude from the upper and lower sides of the large-diameter gear 44. The through holes 442 and 443 are formed to penetrate vertically through the centers of the first connecting portion 445 and the second connecting portion 446, respectively. A first connector 451 and a second connector 452, which connect the motor base 42 and the large-diameter gear 44, are inserted into the through holes 442 and 443, respectively.

[0042] The large-diameter gear 44 has three through holes 447 formed at intervals in the circumferential direction. Connectors (not shown) are inserted into these three through holes 447 from below, thereby connecting the large-diameter gear 44 to the bottom plate 31.

[0043] As shown in Figures 4 and 5, an outer projection 422 is formed on the outer circumference of the lower surface of the annular portion 424 of the motor base 42, projecting downward in an annular shape toward the large-diameter gear 44. On the other hand, an inner projection 423 is formed on the inner circumference of the lower surface of the annular portion 424 of the motor base 42, projecting downward in an annular shape toward the large-diameter gear 44. The inner projection 423 is provided on the outer edge of the through hole 425. In other words, the outer projection 422 is provided on the radially outer side of the motor base 42, and the inner projection 423 is provided on the radially inner side of the motor base 42.

[0044] As shown in Figure 4, the outer protrusion 422 and the inner protrusion 423 each abut against the upper surface of the large-diameter gear 44. In other words, the motor base 42 is in contact with the large-diameter gear 44 at the outer protrusion 422 and the inner protrusion 423, while a gap 422a, 423a is provided between the motor base 42 and the large-diameter gear 44 in the portion of the lower surface excluding the outer protrusion 422 and the inner protrusion 423. The motor base 42 is thus supported by the large-diameter gear 44 from the lower side. In this specification, the outer protrusion 422 and the inner protrusion 423 may be collectively referred to as "protrusions".

[0045] As described above, the teeth 431 of the small-diameter gear 43 mesh with the teeth 441 of the large-diameter gear 44 (Figure 2). Therefore, when the small-diameter gear 43 rotates due to the drive of the left-right oscillating motor 41, the large-diameter gear 44 rotates accordingly. When the large-diameter gear 44 rotates, the motor base 42 rotates accordingly. Since the large-diameter gear 44 is connected to the bottom plate 31 and the motor base 42 is connected to the bottom cover 32, when the motor base 42 rotates, the left-right oscillating motor 41, small-diameter gear 43, bottom cover 32, support column 321, arm 64, and blower 2, all connected to the motor base 42, rotate relative to the bottom plate 31.

[0046] In this way, the rotation of the left-right oscillating motor 41 is transmitted to the motor base 42 via the small-diameter gear 43 and the large-diameter gear 44. In other words, in the blower 1 according to this embodiment, the small-diameter gear 43 and the large-diameter gear 44 function as a transmission mechanism that transmits the rotation of the left-right oscillating motor 41 to the motor base 42. Specifically, in the blower 1, the left-right oscillating mechanism 4 causes the bottom cover 32 to rotate left and right relative to the bottom plate 31, and as a result, the blower unit 2, which is connected to the bottom cover 32 via the arm portion 64, rotates relative to the bottom plate 31.

[0047] [Power cord retention mechanism] Figure 7 is a perspective view of the blower 1 from below, with the cap 34 removed from the bottom surface of the base 3. Figure 8 shows the cap 34 and the power cord 5.

[0048] As shown in Figure 7, the cap 34 is a circular cover that is detachably attached to the bottom surface of the base portion 3, i.e., the center of the bottom surface of the bottom plate 31. When the cap 34 is removed from the base portion 3, a substantially cylindrical space formed in the lower part of the bottom plate 31 is exposed. The power cord 5 is housed in this substantially cylindrical space. As shown in Figures 7 and 1, the power cord 5 is provided to be pulled out from the rear of the bottom plate 31 (base portion 3) toward the outside. As shown in Figure 7, the power cord 5 extends along a groove provided in the bottom plate 31 for holding the power cord 5 to the center of the bottom plate 31, and from there extends upward. At this time, the power cord 5 passes through the through hole in the shaft portion 444 of the large diameter gear 44 and the through hole 425 of the motor base 42.

[0049] As shown in Figure 8, the cap 34 has claws 341 at three locations on its outer circumference. The cap 34 is locked to the bottom plate 31 by the claws 341 engaging with the inner wall surface of holes formed on the lower side of the bottom plate 31.

[0050] The cap 34 has a power cord holder portion 342 formed in the shape of an elongated cylinder. Two through holes 342a are formed on both sides of the power cord holder portion 342 in the longitudinal direction. The shaft portion 342b is inserted into the through holes 342a from above (see Figure 7). A protrusion 342c is formed in the center of the power cord holder portion 342, extending in the longitudinal direction and projecting upward. The position of the power cord 5 is fixed by arranging it so that it passes between the shaft portion 342b and the protrusion 342c. The power cord 5 moves when the blower 1 oscillates from side to side, but the movement of the portion held by the power cord holder portion 342 can be suppressed, thus stabilizing the position of the power cord 5. In this way, the power cord holder portion 342 functions as a holding mechanism for the power cord 5.

[0051] In this embodiment, the cap 34 is circular in shape, but it is not limited to this, and the shape of the cap can be any shape. Also, the shape of the power cord holder 342 is not particularly limited as long as it is a shape that can hold the power cord 5, and a shape other than the shape shown in Figure 8 can be used as appropriate.

[0052] [Configuration of the suction port] Figure 9 is a rear view of the blower 1. In the blower section 2, an outlet 23 is formed in the front grille 25, while an intake port 24 is formed in the rear grille 22. As shown in Figure 9, the rear grille 22 includes a rectangular first grille 222 that extends downward from the center when viewed from the rear, and a second grille 221 that is provided outside the first grille 222 so as to surround the first grille 222 and form a circular outer edge.

[0053] The second grille 221 has a frame member 221a that includes a portion extending concentrically from the center and a portion extending radially from the center, and a gap 221b is formed by the frame member 221a. The first grille 222 has a frame member 222a that has an oval-shaped gap 222b extending vertically when viewed from the rear. The first grille 222 also has a cover portion 222c on the upper and upper left sides of Figure 9 where no gap 222b is formed. The gap 222b is provided at a position that overlaps with the fan motor 27 located in the center of the air blower 2 when viewed from the rear. The gap 222b, together with the gap 221b, constitutes the intake port 24. In this way, by forming the intake port 24 at a position that overlaps with the fan motor 27 when viewed from the rear, the air drawn into the cover of the air blower 2 from the intake port 24 can easily pass around the fan motor 27, thereby enhancing the cooling effect of the fan motor 27.

[0054] [Motor cover for the up-and-down oscillating motor] Figure 10 shows the vertical oscillation mechanism housed in the cover of the blower unit 2 and its surrounding configuration. As shown in Figure 10, the vertical oscillation mechanism of the blower 1 includes a vertical oscillation motor 61, a second motor cover 62, a link 63, an arm portion 64, and a vertical oscillation shaft portion 65.

[0055] The arm portion 64 is connected to both the left and right sides of the first motor cover 27A, which houses the fan motor 27, and holds the first motor cover 27A so that it can rotate up and down. As shown in Figure 10, the up and down oscillating motor 61 is connected to the arm portion 64 via an arc-shaped link 63. When the up and down oscillating motor 61 is driven, the first motor cover 27A oscillates up and down around the up and down oscillating shaft portion 65. One side of the up and down oscillating motor 61 is covered by the second motor cover 62. As shown in Figure 10, the second motor cover 62 has a plurality of through holes 621. This makes it easier for air flowing near the up and down oscillating motor 61 to come into contact with the up and down oscillating motor 61, thereby enhancing the cooling effect of the up and down oscillating motor 61.

[0056] The blower 1 according to an embodiment of the present invention has been described in detail above. The above embodiments are merely specific examples of the present invention, and the scope of the present invention is defined by the claims, and all modifications within the meaning and scope of equivalence to the claims are intended to be included.

[0057] [Features of the blower] As described above, the blower 1 described in the embodiment is equipped with a left-right oscillation mechanism 4 that causes the blower unit 2 to oscillate left and right relative to the base unit 3. The left-right oscillation mechanism 4 includes a left-right oscillation motor 41, a motor base 42, and a transmission mechanism including a small-diameter gear 43 and a large-diameter gear 44. The motor base 42 has an upper surface on which the left-right oscillation motor 41 is arranged. The transmission mechanism transmits the rotation of the left-right oscillation motor 41 to the motor base 42 and supports the motor base 42 from below. By configuring the motor base 42 to be supported from below by the transmission mechanism, specifically mainly by the large-diameter gear 44, the horizontal stability of the blower unit 2 during left-right oscillation is improved, and the occurrence of rattling in the horizontal plane can be suppressed. As a result, the horizontality can be maintained even when the blower unit 2 oscillates left and right. In addition, since there is no need to provide rails and glass balls that roll on the rails in the space within the base unit 3, the generation of abnormal noise caused by glass balls during left-right oscillation of the blower unit 2 can be suppressed.

[0058] The blower 1 has an inner protrusion 423 and an outer protrusion 422 on the lower surface of the motor base 42. These protrusions contact the transmission mechanism, while a gap is provided between the motor base 42 and the transmission mechanism (large-diameter gear 44) in the areas excluding the protrusions. This configuration reduces friction during left-right oscillation compared to a configuration where the entire lower surface of the motor base 42 contacts the transmission mechanism, such as the large-diameter gear 44 and the small-diameter gear 43, over a wide area. Furthermore, the presence of the inner protrusion 423 and outer protrusion 422 improves the horizontal stability of the motor base 42.

[0059] As described above, since the inner protrusion 423 and the outer protrusion 422 are ring-shaped, the horizontal stability of the motor base 42 can be further improved.

[0060] Furthermore, the motor base 42 has a through-hole 425 formed in a position that includes the center of the left-right swivel, thus further improving the horizontal stability of the motor base 42. [Explanation of Symbols]

[0061] 1... Blower 2... Air blower 21…Front cover 22... Rear grille 23…Air outlet 24... Inlet 3…Base section 31…Bottom plate 32...Bottom cover 321...Strut part 34... Cap 341... Nail area 342... Power cord holder 4…Swivel mechanism (swivel mechanism) 5…Power cord 41... Left and right oscillating motor (oscillating motor) 42…Motor base 422...Outer protrusion 423…Inner protrusion 424... Circular section 425…Through hole 43... Small diameter gear 44...Large diameter gear 444... Shaft 61... Up and down oscillating motor 62... Second motor cover (motor cover) 621... Through hole

Claims

1. The air blower unit, A base portion that supports the aforementioned air blower, The system includes an oscillating mechanism disposed within the base portion, which causes the air blower portion to oscillate relative to the base portion, The aforementioned oscillating mechanism is Oscillating motor and A motor base having an upper surface on which the oscillating motor is arranged, A transmission mechanism for transmitting the rotation of the oscillating motor to the motor base, comprising: a transmission mechanism that supports the motor base from a lower surface facing the opposite side of the upper surface; Blower.

2. The lower surface of the motor base has a projection that protrudes downward toward the transmission mechanism. The motor base is arranged such that it contacts the transmission mechanism at the protruding portion, and there is a gap between it and the transmission mechanism in the portion excluding the protruding portion. The blower according to claim 1.

3. The aforementioned protrusion is An inner projection that protrudes downward toward the transmission mechanism from the radially inner side of the lower surface of the motor base, The motor base includes an outer projection that protrudes downward toward the transmission mechanism from the radially outer side of the lower surface, The blower according to claim 2.

4. The aforementioned protrusion has an annular shape. The blower according to claim 2.

5. The motor base has a through hole formed in a position that includes the center of the oscillation of the blower unit. The transmission mechanism has a shaft portion that is inserted into the through hole, A blower according to any one of claims 1 to 4.

6. A power cord is pulled out from the base section to the outside, The base portion is further equipped with a detachable cap, The cap has a retaining portion for holding the power cord. A blower according to any one of claims 1 to 4.

7. The aforementioned air blower unit is Fans, A fan motor that rotates the aforementioned fan, Includes the fan and a cover that houses the fan motor, The cover has an air intake and an air outlet formed therein. The intake port is formed such that, in a rear view of the blower unit, it includes a position that overlaps with the fan motor. A blower according to any one of claims 1 to 4.

8. A vertical oscillation motor that causes the air blower to oscillate vertically relative to the base, The motor cover, which is positioned to cover the aforementioned up-and-down oscillating motor and has a plurality of holes formed in it, is further comprising A blower according to any one of claims 1 to 4.

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