JP7470656B2 - Fan - Google Patents

Description

The present invention relates to an electric fan.

Conventionally, electric fans have been disclosed in which the blower unit that blows air is supported by a stand consisting of a support that stands up from a flat plate-shaped grounding part. For example, the electric fan disclosed in Patent Document 1 has a neck piece that connects the blower unit and the stand and is freely rotatable. By rotating the neck piece, the angle of the blower unit relative to the stand can be changed, and as a result, the angle of the air blown from the blower unit can be changed.

Japanese Utility Model Publication No. 58-29345

In addition to conventional stationary fans, there has been an increasing demand for portable fans in recent years. However, portable fans, which require compactness, are difficult to provide with a large contact area and a stand that stably supports the blower, as is the case with stationary fans. Therefore, it can be difficult to use the fan for a variety of purposes, including stationary and portable fans.

The present invention provides a highly versatile fan that can be used in a variety of fan configurations.

The electric fan of the present invention comprises a stand section having an arm section, and a main body section, the main body section including a receiving section that rotatably supports the arm section and restricts movement of the arm section in the direction of the rotation axis, and an engaging section that is provided on the opposite side of the arm section from the receiving section and can adjust the rotation angle of the arm section , the stand section having a support section that has a semicircular plate shape centered on the rotation axis of the arm section and is provided to face the receiving section regardless of whether the arm section is open or closed, the receiving section is provided to face the inner side of the support section, the support section has a plurality of engaged sections that can engage with the engaging section that protrudes hemispherically toward the receiving section, and the plurality of engaged sections are arranged in an arc shape on the outer circumferential edge side of the support section around the rotation axis of the arm section .

The present invention provides a highly versatile electric fan that can be used in a variety of different types of electric fans.

1 is a perspective view showing an electric fan according to an embodiment of the present invention; 1A and 1B are right side views showing an electric fan according to an embodiment of the present invention, in which FIG. 1A shows a stored state (fully closed state) of the stand, and FIG. 1B shows a supported state (open state) of the stand. 1A is a rear view showing an electric fan according to an embodiment of the present invention, in which (a) shows a stored state (fully closed state) of the stand, and (b) shows a supported state (fully open state) of the stand. FIG. 2 is a rear view showing the electric fan according to the embodiment of the present invention, showing a state in which the stand part has been detached from the grip part. 1A and 1B show the state in which the stand part has been removed from the grip part of an electric fan according to an embodiment of the present invention, where (a) is an oblique view of the grip part as viewed from the right rear side, and (b) is an oblique view of the grip part as viewed from the left rear side. 3A is a partially enlarged view showing the grip portion of an electric fan according to an embodiment of the present invention, in which FIG. 3A is a partially enlarged view showing the vicinity of the stand portion in the VIa-VIa cross section of FIG. 3A, and FIG. 3B is a partially enlarged view showing the vicinity of the stand portion in the VIb-VIb cross section of FIG. 3B. 1A and 1B show a stand portion of an electric fan according to an embodiment of the present invention, where FIG. 1A is a perspective view showing the inner surface side of the stand main body portion, and FIG. 1B is a perspective view showing the outer surface side of the stand main body portion.

An embodiment of the present invention will be described with reference to the drawings. The electric fan 1 shown in FIG. 1 comprises a grip part 10 and an air blowing part 20 connected to the grip part 10. In the following description of the electric fan 1, the air blowing side (the side that expels air) is referred to as the front, the air intake side (the side that draws air) as the rear, the left side when looking rearward from the front as the left, and the opposite side as the right. Additionally, the grip part 10 side is referred to as the bottom, and the air blowing part 20 side as the top.

The grip portion 10 is formed in a rectangular parallelepiped shape with its corners rounded (see also Figures 2 to 4). Here, the grip portion 10 has its corners rounded, making it easier to hold with a human hand. The grip portion 10 connects to the air blower 20 through its upper surface. The grip portion 10 has a grip main body portion 30 and a stand portion 40. The electric fan 1 is configured such that the stand portion 40 is rotatably connected to the main body portion 100, which includes the grip main body portion 30 and the air blower 20, and can stand on its own when the stand portion 40 is in an open state.

The blower 20 is formed in a low cylindrical shape extending in the front-rear direction (see also Figs. 2 to 4). The blower 20 also has a grill section 50, a fan 60, and a fan motor 70 (see also Fig. 3(a) and other figures). The blower 20 blows air by drawing in air from the rear side (the rear grill section 52 side of the grill section 50, which will be described later) and expelling air from the front side (the front grill section 51 side of the grill section 50, which will be described later).

The grip body 30 forms most of the outer shape of the grip section 10. Therefore, the outer shape of the grip body 30 is substantially the same as that of the grip section 10. The grip body 30 also includes a front grip body 31 and a rear grip body 32. The outer sides (outer surfaces) of the front grip body 31 and the rear grip body 32 form the outer surface of the grip body 30. Inside the front grip body 31 and the rear grip body 32, a power source such as a battery that supplies driving power to the electric fan 1, an electric circuit (including wiring), and a functional section for controlling the rotation of the fan 60 of the blower 20 are arranged (stored).

The functional units may include a control unit that controls the overall operation of the fan 60, a memory unit that stores information necessary to control the overall operation of the electric fan 1, and a fan motor drive unit that drives the fan motor 70 that supports the fan 60. The functional units such as the control unit and the fan motor drive unit may be configured, for example, by a computer (CPU) or an electronic circuit. The memory unit may be configured, for example, by a recording element or a memory circuit such as an SSD (Solid State Drive) or an SRAM (Static Random Access Memory).

The front grip body 31 has a rectangular parallelepiped outer shape and is formed into a low, bottomed cylinder extending in the front-to-rear direction. The front grip body 31 is disposed in front of the grip body 30. The front grip body 31 is provided with a switch 311.

The switch 311 is located on the upper side of the front grip body 31 and is formed as a circular push button switch. The switch 311 can start the control unit and the fan motor starting unit described above, and functions as a start switch for the operation of the fan 60 of the blower 20.

The rear grip body 32 has a rectangular parallelepiped outer shape and is formed as a low, bottomed cylinder extending in the front-rear direction. Here, the height of the rear grip body 32 extending in the front-rear direction is formed to be slightly taller than the front grip body 31. The bottomed cylinder-shaped rear grip body 32 has an opening, and is arranged on the rear side of the grip body 30 with the openings of the front grip body 31, which is also bottomed cylinder-shaped, fitting together. The rear grip body 32 is provided with a stand storage section 321 and a surface-contacting protrusion 322. In other words, the grip body 30 (because the rear grip body 32 is one of the grip body parts 30) is provided with the stand storage section 321 and the surface-contacting protrusion 322.

The stand storage section 321 is formed in a U-shaped recess from the outer surface of the rear grip body section 32, extending from the center side to the lower side of the rear grip body section 32. The recess shape of the stand storage section 321 is formed to correspond to the outer shape of the U-shaped stand section 40. Therefore, the stand storage section 321 can store the stand section 40. In addition, as shown in Figures 4, 5 (a) and 5 (b), the stand storage section 321 is provided with a through hole 321a, a receiving section 321b, an engaging protrusion section 321c, a bearing section 321d and an engagement groove section 321e. In other words, the grip body section 30 is provided with a through hole 321a, a receiving section 321b, an engaging protrusion section 321c, a bearing section 321d and an engagement groove section 321e.

The through holes 321a are provided on both the left and right sides of the upper side of the stand storage section 321. The through holes 321a are rectangular holes whose longitudinal direction coincides with the rear grip body section 32 and the stand storage section 321.

The receiving portion 321b is provided on the inside of each through hole 321a. Therefore, in the state shown in FIG. 3(b) where the stand unit 40 is connected to the stand storage unit 321, the receiving portion 321b is arranged on the inside in the left-right direction with respect to the support unit 42. The receiving portion 321b is provided on the long side of the two long sides of the through hole 321a that is closer to the center in the short direction of the rear grip main body unit 32. The receiving portion 321b is formed so as to protrude in the shape of a rectangular plate from the inner edge of the through hole 321a toward the short direction end side of the rear grip main body unit 32. The receiving portion 321b rotatably supports the arm portion 411 (see FIG. 7(a) etc.) of the stand unit 40 and restricts the inward movement of the arm portion 411 in the rotation axis direction (left-right direction).

The engaging protrusion 321c shown in Fig. 4 is provided on the inside of the through hole 321a. The engaging protrusion 321c is provided on one of the two long sides of the through hole 321a, which is closer to the short end of the rear grip main body 32. The engaging protrusion 321c is formed in the through hole 321a so as to protrude in a semispherical shape toward the center of the rear grip main body 32 in the short direction. The engaging protrusion 321c is formed so as to be able to engage with an engaging recess 421 (engaged portion) provided in the support portion 42 of the stand portion 40, which will be described later in Fig. 7(a) etc. As shown in the enlarged views of part A and part B in FIG. 3(b), the engagement protrusion 321c (engagement portion) is provided on the side of the arm 411 opposite the receiving portion 321b, and is configured to be able to adjust the rotation angle of the arm 411 by engaging with the engagement recess 421 (first engagement recess 421a and second engagement recess 421b) and coming into contact with the arm 411 (stand portion 40).

As shown in Figs. 5(a) and 5(b), the bearing portion 321d is provided by opening into the downwardly-inclined inner wall portion of the stand storage portion 321, which is concave. The bearing portion 321d is provided on both the upper left and right sides of the stand storage portion 321, one on each side. The bearing portion 321d is a through hole that penetrates the inner wall portion of the stand storage portion 321 in the left-right direction. The bearing portion 321d is formed so as to be engageable with the shaft portion 41a provided on the stand main body portion 41 of the stand portion 40, which will be described later, and functions as a rotation shaft of the stand portion 40.

The locking grooves 321e are provided in the downwardly extending inner wall of the stand storage section 321, which is concave. The locking grooves 321e are provided on the lower side of the stand storage section 321, one on each of the left and right sides. The locking grooves 321e are grooves recessed inward in the left-right direction from the wall of the stand storage section 321. The locking grooves 321e are formed so as to be engageable with the locking protrusions 41b provided on the stand main body 41 of the stand section 40, which will be described later.

The contact surface protrusion 322 located on the lower end side of the rear grip body 32 is formed as a rectangular parallelepiped protrusion protruding from the outer surface of the rear grip body 32. The contact surface protrusion 322 is provided by adhering an elastomer such as rubber to the outer surface of the rear grip body 32.

As shown in Fig. 2(a) and Fig. 2(b), the stand unit 40 is rotatably connected to the grip body unit 30 on the rear grip body unit 32 side of the grip body unit 30. Here, the stand unit 40 can have a rotation angle θ of a minimum of 0 degrees to a maximum of 90 degrees with respect to the grip body unit 30 (rear grip body unit 32). When the rotation angle θ is 0 degrees, the stand unit 40 is in a storage state (fully closed state) stored in the stand storage unit 321 (see also Fig. 3(a) and Fig. 6(a)), and when the rotation angle θ is 0 degrees or more, the stand unit 40 is in a support state (open state) in which the stand unit 40 is located outside the stand storage unit 321 and supports the grip body unit 30. In addition, when the rotation angle θ is a maximum of 90 degrees, the stand unit 40 is in a fully open state (see also Fig. 3(b) and Fig. 6(b)). As shown in FIG. 3(a), the stand 40 is formed in a U-shape whose longitudinal direction coincides with that of the rear grip body 32 (see also FIG. 2(a) and FIG. 2(b)). The stand 40 has a stand body 41 and a support 42.

7(a) and 7(b), the stand body 41 forms most of the outer shape of the stand 40 and has two arms 411 extending parallel to each other in a bifurcated shape. Therefore, the entire outer shape of the stand body 41 is formed in a substantially U-shape. The stand body 41 is provided with an axis 41a and a locking protrusion 41b. The stand body 41 also has two surfaces, an inner surface 41A and an outer surface 41B. The inner surface 41A is located on the inside of the stand body 41 (the side of the stand storage section 321 of the rear grip body 32). Therefore, the inner surface 41A is not exposed when the stand 40 is in the storage state (fully closed state). The outer surface 41B is located on the outside of the stand body 41 and forms part of the outer shape and outer surface of the rectangular parallelepiped grip section 10.

The shafts 41a are provided on the inside (inner surface 42A side) and upper side of the U-shaped stand main body 41, one on each side. The shafts 41a are short cylindrical projections that protrude from the inner surface 41A of the stand main body 41 toward the center of the stand main body 41 in the left-right direction. The shafts 41a rotatably engage and connect with the bearing 321d, so that the stand 40 is rotatably connected to the grip main body 30 (rear grip main body 32).

The locking protrusions 41b are provided on the inside and underside of the U-shape of the stand main body 41, one on each side. The locking protrusions 41b are located on the inner side surface 41A of the stand main body 41. The locking protrusions 41b are protrusions that protrude from the inner side surface 41A of the stand main body 41 toward the center of the stand main body 41 in the left-right direction. When the stand 40 is in the stored state (fully closed state), the locking protrusions 41b are located inside the locking groove 321e and lock the stand 40 to the grip main body 30 (rear grip main body 32).

As shown in FIG. 6(a) and FIG. 6(b), the support portion 42 is provided on both the left and right sides of the upper side of the inner surface 41A of the stand main body 41, and stands vertically from the inner surface 41A (see also FIG. 1 and FIG. 3(b)). The support portion 42 is formed in a semicircular shape (a semiconvex disc shape protruding from the inner surface 41A), and about a quarter of a semicircle (a quadrant) protrudes outside the outer peripheral edge of the stand main body 41. The support portion 42 is provided so as to face the receiving portion 321b in the rotation axis direction regardless of the open/closed state of the arm portion 411 (stand portion 40). The support portion 42 is provided with an engagement recess 421 on the outer surface 42B. The tip of the support portion 42 is provided with a restriction portion 422 protruding toward the outer surface 42B.

The support portion 42 is disposed inside the through hole 321a provided in the stand storage portion 321 of the rear grip main body portion 32, and is rotatably supported by the shaft portion 41a and the bearing portion 321d, thereby rotatably supporting the rear grip main body portion 32 of the grip main body portion 30 (see also the enlarged views of part A and part B in FIG. 3(b)). Therefore, the arm portion 411 of the stand portion 40 having the support portion 42 is disposed inside the through hole 321a, between the receiving portion 321b and the engaging protrusion portion 321c.

The engagement recesses 421 are provided on the outer peripheral edge side of the outer surface 42B of the support portion 42, and are recesses arranged side by side around the rotation axis. The engagement recesses 421 are formed so that the convex shape of the engagement protrusion 321c can be engaged and arranged inside the concave shape. In other words, the engagement recesses 421 are configured so that they can engage with the engagement protrusion 321c by arranging the engagement protrusion 321c inside the concave shape. Here, the concave shape of the engagement recesses 421 can adjust the external force required to engage and disengage the engagement protrusion 321c by adjusting the depth of the concave shape. The engagement recesses 421 include a first engagement recess 421a and a second engagement recess 421b.

The first engagement recess 421a is the engagement recess 421 provided closest to the stand main body 41 on the inside of the outer peripheral edge of the outer surface 42B of the support section 42. The opening area of the first engagement recess 421a is approximately twice that of the second engagement recess 421b. The opening shape of the first engagement recess 421a is formed in an oval shape. As shown in FIG. 6(a), when the stand section 40 is in the stored state, the first engagement recess 421a stores the engagement protrusion 321c inside its concave shape.

Four second engagement recesses 421b are provided, aligned in an arc with the first engagement recesses 421a. The opening shape of the second engagement recesses 421b is formed in a circular shape. When the stand portion 40 is in a supporting state, the second engagement recesses 421b accommodate the engagement protrusions 321c inside the concave shape. When the stand portion 40 is in a fully open state, the second engagement recesses 421b accommodate the engagement protrusions 321c inside the concave shape of the second engagement recesses 421b located on the outermost outer side of the outer surface 42B of the support portion 42, as shown in FIG. 6(b).

In this way, the engagement protrusion 321c and the engagement recess 421 (the first engagement recess 421a and the second engagement recess 421b) can be configured to be engaged and disengaged by a predetermined force, so that the electric fan 1 can be stably maintained at any rotation angle of the stand unit 40. When the engagement protrusion 321c and the engagement recess 421 are engaged and disengaged, the arm 411 is pressed by the engagement protrusion 321c climbing up the flat portion between the engagement recesses 421 (the convex portion relative to the engagement recess 421) and is slightly bent inward. If the rigidity of the arm 411 is set high, the external force required to rotate the stand unit 40 becomes large, making it difficult to open and close the stand unit 40. On the other hand, if the rigidity of the arm 411 is set low, the external force required to rotate the stand unit 40 becomes small, but it is expected that the stand unit 40 will open and close unintentionally.

In this embodiment, the receiving portion 321b is provided at a position opposite the engaging protrusion 321c, so that even if the arm portion 411 is pressed against the receiving portion 321b, the arm portion 411 is prevented from bending excessively inward (the arms 411 move in a direction narrowing). Therefore, the stand portion 40 of this embodiment can be stably supported at an opening/closing angle set by the user while being easy to open and close, and unintended opening and closing is prevented. Note that the positional relationship in which the receiving portion 321b and the engaging protrusion 321c are opposed to each other only needs to be on one side and the opposite side of the support portion 42, and they do not have to be arranged in a straight line.

The restricting portion 422 is disposed at the tip of the support portion 42 that protrudes outward from the outer periphery of the stand main body portion 41. The restricting portion 422 is also very small compared to the support portion 42, and is formed in the shape of a small rectangular parallelepiped (rectangular flat plate). When a force is applied that would cause the rotation angle θ to become 0 degrees or less, the restricting portion 422 comes into contact with the inner surface of the rear grip main body portion 32 of the grip main body portion 30, preventing the rotation angle θ from becoming 0 degrees or less.

The grill section 50 forms the outer surface of the blower section 20 and has the same outer shape as the blower section 20. The grill section 50 also includes a front grill section 51 and a rear grill section 52.

The front grill section 51 has an exhaust section 51a and a side section 51b. The exhaust section 51a is circular, with a disk-like portion near its center, and a radially annular straightening plate is provided on its outer periphery. The side section 51b is formed in the shape of a low cylinder with two openings. The front grill section 51 is formed by providing the exhaust section 51a inside one of the openings of the side section 51b.

The rear grill section 52 is formed in a disk shape near its center, and the outer periphery is formed in a mesh shape with multiple openings extending radially from the center. The rear grill section 52 connects to the side section 51b of the front grill section 51 at the tip that rises forward from the outer periphery.

The fan 60 (impeller) is disposed inside the grill section 50 of the blower section 20. The fan 60 also includes a front fan 61 located at the front in the front-rear direction and a rear fan 62 located at the rear in the front-rear direction. The front fan 61 and the rear fan 62 are disposed on the same axis and rotate in opposite directions. In other words, the electric fan 1 has a counter-rotating fan configuration. By including the front fan 61 and the rear fan 62, which are counter-rotating fans, the electric fan 1 can extend the distance the wind can reach compared to an electric fan having a normal single fan. Furthermore, by controlling the rotation speed ratio of the front fan 61 and the rear fan 62, the electric fan 1 can change the blown wind from a straight wind that is highly directional and can reach far to a diffuse wind with a wide blowing range.

The fan motors 70 are disposed inside the grill section 50 of the blower section 20, on the front grill section 51 side and the rear grill section 52 side, respectively (the positions of the fan motors 70 are shown by dashed lines in Figures 3(a) and 3(b), etc.). Each fan motor 70 supports the front fan 61 and the rear fan 62, which are fans 60, and drives the front fan 61 and the rear fan 62 to rotate.

Next, an example of how to use the electric fan 1 will be described. In addition, the electric fan 1 will be described here assuming that the stand unit 40 is initially in the stored state.

First, a user of the electric fan 1 operates the switch 311 while holding the grip portion 10 of the electric fan 1 in his/her hand, causing the electric fan 1 to start blowing air. At this time, the user can direct the airflow to any desired location by moving the hand holding the grip portion 10 of the electric fan 1. In other words, the electric fan 1 can be used as a portable electric fan. The engaging protrusion 321c engages with the first engaging recess 421a (see FIG. 6(a)).

Next, the user rotates the stand 40 from the rear grip body 32 side of the grip body 30 with his/her fingers or the like so that the rotation angle θ of the stand 40 is set to 0 degrees or more to open the stand. At this time, the engagement protrusion 321c slides on the outer surface 42B of the support 42 to engage with any of the first engagement recesses 421a to any of the second engagement recesses 421b. Since the stand 40 is configured to be supported by the inner surface 42A of each of the left and right support parts 42 with the receiving parts 321b, even if the rotation angle θ of the stand 40 changes, excessive bending of the support part 42 is suppressed, or imbalance of force in the left and right direction due to warping of one of the support parts 42 is prevented, and the holding force of the stand 40 connected to the rear grip body 32 (grip body 30) can be stabilized. This allows the stand 40 to be adjusted to any rotation angle θ and stabilized.

Next, as shown in FIG. 1, the user places the electric fan 1 so that the lower end of the contact surface protrusion 322 and the stand part 40 touch the ground surface. The electric fan 1 is grounded by the contact surface protrusion 322 and the stand part 40, so that the grounding is more stable. At this time, the fan 60 of the electric fan 1 is rotating, so a force in the front-rear direction is applied to the grip part 10 of the electric fan 1, which is the ground side. However, since the electric fan 1 is grounded by the contact surface protrusion 322 and the stand part 40, and since the holding force of the stand part 40 connecting with the rear grip main body part 32 of the grip main body part 30 can be set high as described above, it is possible to prevent movement in the front-rear direction due to the reaction force of the air blowing, vibration, etc. As a result, the user can use the electric fan 1 without holding the grip part 10 of the electric fan 1 with his/her hand. In other words, the electric fan 1 can also be used as a stationary electric fan because the stand part 40 can rotate.

Then, the user can set the rotation angle θ of the stand unit 40 to 0 degrees and store the stand unit 40 in the stored state, and use the electric fan 1 again as a portable electric fan.

Although an embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and various modifications can be made to the present invention. For example, the electric fan 1 may have the receiving portion 321b and the engaging protrusion 321c arranged on the inside of the through hole 321a in reverse. In this case, the engaging recess 421 provided in the support portion 42 of the stand portion 40 may be provided on the inner surface 42A of the support portion 42.

The through hole 321a may be a non-through hole, recess, depression, opening, or other storage portion capable of storing the tip side of the arm portion 411 including the support portion 42, and the receiving portion 321b and the engaging protrusion portion 321c described in this embodiment may be configured to be arranged opposite each other in this storage portion.

Furthermore, the fan 60 of the blower section 20 of the electric fan 1 is not limited to being a counter-rotating fan structure, and may be, for example, a structure consisting of a single fan 60.

The stand unit 40 may be rotatably connected to the main body unit 100 by one arm unit 411 or three or more arms 411.

LIST OF REFERENCE NUMERALS 1 Electric fan 10 Grip portion 20 Blower portion 30 Grip main body portion 31 Front grip main body portion 32 Rear grip main body portion 40 Stand portion 41 Stand main body portion 41A Inner surface 41B Outer surface 41a Shaft portion 41b Locking protrusion portion 42 Support portion 42A Inner surface 42B Outer surface 50 Grill portion 51 Front grill portion 51a Air exhaust portion 51b Side portion 52 Rear grill portion 60 Fan 61 Front fan 62 Rear fan 70 Fan motor 100 Main body portion 311 Switch 321 Stand storage portion 321a Through hole 321b Receiving portion 321c Engagement protrusion portion 321d Bearing portion 321e Engagement groove portion 322 Contact surface protrusion portion 411 Arm portion 421 Engagement recess 421a First engagement recess 421b Second engagement recess 422 Restriction portion θ Rotation angle

Claims (4)

The device includes a stand having an arm and a main body.
the main body portion includes a receiving portion that rotatably supports the arm portion and restricts movement of the arm portion in a rotation axis direction, and an engaging portion that is provided on an opposite side of the arm portion from the receiving portion and that is capable of adjusting a rotation angle of the arm portion,
the stand portion has a semicircular plate-shaped support portion centered on a rotation axis of the arm portion and provided so as to face the receiving portion regardless of whether the arm portion is opened or closed,
The receiving portion is provided to face an inner surface of the support portion,
the support portion has a plurality of engaged portions that are hemispherically protruding toward the receiving portion and are engageable with the engaging portions,
A fan characterized in that the multiple engaged portions are arranged side by side in an arc shape around the rotation axis of the arm portion on the outer circumferential edge side of the support portion. The main body portion includes a grip main body portion and a blower portion connected to the grip main body portion to blow air,
The receiving portion is provided on the grip body portion,
2. The electric fan according to claim 1 . The electric fan according to claim 2 , wherein the main body has a surface-contacting protrusion at an end of the grip main body opposite the blower. The stand portion is formed in a U-shape,
The main body has a U-shaped recessed stand storage section capable of storing the stand.
4. The electric fan according to claim 1, wherein the first and second electrodes are arranged in a first direction.

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