JP2022147263A - Electric fan - Google Patents

Abstract

To provide the configuration of an electric fan with high versatility, which can be adopted in various forms of electric fans.SOLUTION: An electric fan 1 comprises: a stand part 40 having an arm part 411; and a body part 100 including a receiving part 321b that rotatably supports the arm part 411 and restricts the movement of the arm part 411 in a rotational axis direction, and an engagement part (engagement protrusion part) provided on the side opposite to the receiving part 321b side with respect to the arm part 321b and capable of adjusting a rotation angle of the arm part 411.SELECTED DRAWING: Figure 3

Description

The present invention relates to electric fans.

2. Description of the Related Art Conventionally, there has been disclosed an electric fan in which a blower section for blowing air is supported by a stand section composed of a support that is erected from a flat plate-shaped ground section. For example, the electric fan disclosed in Patent Literature 1 includes a rotatable neck piece that connects the blower section and the stand section. The electric fan can change the angle of the air blowing section with respect to the stand section by rotating the neck piece, and as a result, the angle of air blown from the air blowing section can be changed.

Japanese Utility Model Publication No. 58-29345

In recent years, demand for portable fans has increased in addition to conventional stationary fans. However, it is difficult to stably support the air blower with a stand by providing a grounding portion with a large ground contact area, unlike a stationary fan, in a portable fan that requires compactness. Therefore, it may be difficult to use the fan for various purposes including stationary fans and portable fans.

The present invention provides a highly versatile fan that can be used in various forms of fans.

The electric fan of the present invention includes a stand portion having an arm portion, a receiving portion that rotatably supports the arm portion and restricts movement of the arm portion in a rotation axis direction, and a support portion for the arm portion. and a body portion including an engaging portion provided on the side opposite to the receiving portion side and capable of adjusting the rotation angle of the arm portion.

ADVANTAGE OF THE INVENTION According to this invention, the general purpose electric fan which can be employ|adopted for the electric fan of various forms can be provided.

1 is a perspective view showing an electric fan according to an embodiment of the present invention; FIG. Fig. 2 is a right side view showing the electric fan according to the embodiment of the present invention, where (a) shows the storage state (fully closed state) of the stand portion, and (b) shows the supported state (open state) of the stand portion; show. BRIEF DESCRIPTION OF THE DRAWINGS It is a rear view which showed the electric fan which concerns on embodiment of this invention, (a) shows the accommodation state (fully closed state) of a stand part, (b) shows the supported state (fully opened state) of a stand part. . It is a rear view which showed the electric fan which concerns on embodiment of this invention, and shows the state which removed the stand part from the holding part. Fig. 2 shows a state in which a stand portion is removed from a grip portion of an electric fan according to an embodiment of the present invention, (a) is a perspective view when viewed from the right rear side of the grip portion, and (b) is a perspective view of the grip portion; It is a perspective view when seen from the left rear side. Fig. 3(a) is a partial enlarged view showing the vicinity of the stand portion in the VIa-VIa cross section of Fig. 3(a), and Fig. 3(b) ) is a partially enlarged view showing the vicinity of the stand portion in the VIb-VIb cross section of FIG. 1 shows a stand portion of an electric fan according to an embodiment of the present invention, where (a) is a perspective view showing the inner side of the stand main body, and (b) is a perspective view showing the outer side of the stand main body; It is a diagram.

An embodiment of the present invention will be described based on the drawings. The electric fan 1 shown in FIG. 1 includes a grip portion 10 and a blower portion 20 connected to the grip portion 10 . Here, in the following description of the electric fan 1, the blowing side (the side that discharges wind) is the front, the intake side (the side that sucks in the wind) is the back, the left side when viewed from the front to the rear is the left, and the opposite side is the right. and Also, the grip portion 10 side is the bottom, and the blower portion 20 side is the top.

The grip portion 10 is formed in a rectangular parallelepiped shape whose corners are chamfered (see also FIGS. 2 to 4). Here, the grip portion 10 is easily gripped by human hands by chamfering the corners thereof. Moreover, the grip part 10 is connected to the blower part 20 by its upper surface. The grip portion 10 has a grip 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 body portion 100 including the grip body portion 30 and the air blowing portion 20, and can stand on its own when the stand portion 40 is in the open state.

The air blower 20 is formed in a low columnar shape extending in the front-rear direction (see also FIGS. 2 to 4). In addition, the blower section 20 has a grill section 50, a fan 60, and a fan motor 70 (see also FIG. 3A and the like). The blower unit 20 draws in air from the rear side (the side of the rear grille portion 52 of the grille portion 50 described later) and discharges the air from the front side (the side of the front grille portion 51 of the grille portion 50 described later). to fan.

The gripping body 30 forms most of the contour of the gripping portion 10 . Therefore, the outer shape of the grip body portion 30 is substantially the same as the outer shape of the grip portion 10 . Further, the grip body portion 30 includes a front grip body portion 31 and a rear grip body portion 32 . The outside (outer surface) of each of the front gripping body portion 31 and the rear gripping body portion 32 forms the outer surface of the gripping body portion 30 . In addition, inside the front gripping main body portion 31 and the rear gripping main body portion 32, a power source such as a battery for supplying driving power to the electric fan 1, an electric circuit (including wiring), and a fan 60 of the blower portion 20 are rotated. A functional part or the like for performing control when turning on is arranged (accommodated).

Here, the function unit drives a control unit that controls the overall operation of the fan 60, a storage unit that stores information necessary for controlling the overall operation of the electric fan 1, and a fan motor 70 that supports the fan 60. Fan motor drives and the like may be included. Functional units such as the control unit and the fan motor driving unit can be configured by, for example, a computer (CPU), an electronic circuit, or the like. The storage unit can be composed of recording elements and storage circuits such as SSDs (Solid State Drives) and SRAMs (Static Random Access Memory).

The front gripping main body 31 has a rectangular parallelepiped outer shape and is formed in a low-profile bottomed cylindrical shape extending in the front-rear direction. Also, the front gripping main body portion 31 is arranged on the front side of the gripping main body portion 30 . A switch 311 is provided on the front gripping body portion 31 .

The switch 311 is positioned above the front gripping main body 31 and is formed as a circular push button switch. The switch 311 can start the above-described control unit, fan motor starter, etc., and functions as a start switch for the operation of the fan 60 of the blower unit 20 .

The rear grip main body 32 has a rectangular parallelepiped outer shape and is formed in a low-profile bottomed cylindrical shape extending in the front-rear direction. Here, the rear gripping main body portion 32 extending in the front-rear direction is slightly taller than the front gripping main body portion 31 . The rear gripping main body portion 32 having a bottomed tubular shape has an opening, and the openings of the front gripping main body portion 31 also having a bottomed tubular shape are fitted to each other, and the rear side of the gripping main body portion 30 is fitted. placed in A stand housing portion 321 and a contact surface projection portion 322 are provided in the rear grip main body portion 32 . In other words, the grip body portion 30 (because the rear grip body portion 32 is one of the grip body portions 30) is provided with the stand housing portion 321 and the contact surface projection portion 322. FIG.

The stand housing portion 321 is formed in a U-shaped depression from the outer surface of the rear gripping main body portion 32 from the center side to the lower side of the rear gripping main body portion 32 . The concave shape of the stand housing portion 321 is formed corresponding to the outer shape of the U-shaped stand portion 40 . Therefore, the stand storage section 321 can store the stand section 40 . As shown in FIGS. 4, 5A, and 5B, the stand housing portion 321 includes a through hole 321a, a receiving portion 321b, an engaging projection portion 321c, a bearing portion 321d, and a locking groove portion 321e. is provided. In other words, the grip main body 30 is provided with a through hole 321a, a receiving portion 321b, an engaging projection 321c, a bearing 321d, and an engaging groove 321e.

The through-holes 321 a are provided on the left and right sides of the upper side of the stand housing portion 321 , one each. Further, the through hole 321 a is a hole having a rectangular opening whose longitudinal direction coincides with that of the rear grip main body 32 and the stand housing portion 321 .

The receiving portion 321b is provided inside each through hole 321a. Therefore, in a state such as FIG. 3B in which the stand portion 40 is connected to the stand housing portion 321, the receiving portion 321b is arranged inside the support portion 42 in the left-right direction. Further, the receiving portion 321b is provided on the long side near the center in the short direction of the rear gripping body portion 32, of the two long sides of the through hole 321a. The receiving portion 321b is formed so as to protrude in the shape of a rectangular parallelepiped from the inner edge of the through hole 321a toward the end side of the rear gripping main body portion 32 in the short direction. The receiving portion 321b rotatably supports the arm portion 411 (see FIG. 7A, etc.) of the stand portion 40, and restricts the inward movement of the arm portion 411 in the rotation axis direction (horizontal direction).

The engaging protrusion 321c shown in FIG. 4 is provided inside the through hole 321a. Further, the engaging protrusion 321c is provided on the longer side of the two long sides of the through hole 321a that is closer to the end side in the short direction of the rear gripping 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 gripping main body 32 in the short direction. The engagement protrusion 321c is formed to be able to engage with an engagement recess 421 (engaged portion) provided in the support portion 42 of the stand portion 40, which will be described later with reference to FIG. 7A and the like. The engaging protrusion 321c (engaging portion) is provided on the side opposite to the receiving portion 321b with respect to the arm portion 411, as shown in the enlarged view of part A and the enlarged view of part B in FIG. By engaging with the engaging recess 421 (the first engaging recess 421a and the second engaging recess 421b), the arm portion 411 (the stand portion 40) is brought into contact with the arm portion 411 so that the rotation angle of the arm portion 411 can be adjusted. be.

As shown in FIGS. 5(a) and 5(b), the bearing portion 321d is provided so as to open to the inner wall portion of the stand housing portion 321 having a concave shape. In addition, one bearing portion 321d is provided on the upper side of the stand housing portion 321 and on both the left and right sides. The bearing portion 321d is a through hole penetrating the inner wall portion of the stand housing portion 321 in the left-right direction. The bearing portion 321 d is formed so as to be able to engage with a shaft portion 41 a provided in the stand main body portion 41 of the stand portion 40 to be described later, and functions as a rotation shaft of the stand portion 40 .

The locking groove portion 321e is provided in the standing inner wall portion of the stand housing portion 321 having a concave shape. In addition, one locking groove portion 321e is provided on the lower side of the stand housing portion 321 and on both the left and right sides. The locking groove portion 321 e is a groove recessed inward in the left-right direction from the wall portion of the stand housing portion 321 . The locking groove portion 321e is formed so as to be able to engage with a locking projection portion 41b provided on the stand main body portion 41 of the stand portion 40, which will be described later.

The contact surface protrusion 322 positioned on the lower end side of the rear gripping main body 32 is formed as a rectangular parallelepiped protrusion protruding from the outer surface of the rear gripping main body 32 . The contact surface protrusion 322 is provided by, for example, attaching an elastomer such as rubber to the outer surface of the rear grip main body 32 .

As shown in FIGS. 2A and 2B, the stand portion 40 is rotatably connected to the gripping body portion 30 on the rear gripping body portion 32 side of the gripping body portion 30 . Here, the stand section 40 can have a rotation angle θ of 0 degrees at minimum to 90 degrees at maximum with respect to the grip body section 30 (rear grip body section 32). When the rotation angle θ is 0 degrees, the stand portion 40 is in the storage state (fully closed state) stored in the stand storage portion 321 (see also FIGS. 3A and 6A), and is rotated. When the angle .theta. In the supported state, when the rotation angle θ is 90 degrees, which is the maximum, the fully opened state is achieved (see also FIGS. 3(b) and 6(b)). Further, as shown in FIG. 3(a), the stand part 40 is formed in a U shape whose longitudinal direction coincides with that of the rear grip main body part 32 (see also FIGS. 2(a) and 2(b)). reference). The stand portion 40 has a stand body portion 41 and a support portion 42 .

As shown in FIGS. 7(a) and 7(b), the stand main body 41 forms most of the outer shape of the stand 40, and has two arms 411 that are bifurcated and extend substantially parallel. have Therefore, the entire outer shape of the stand body portion 41 is formed in a substantially U shape. The stand body portion 41 is provided with a shaft portion 41a and a locking projection portion 41b. Also, the stand main body 41 has two surfaces, an inner surface 41A and an outer surface 41B. The inner side surface 41A is positioned inside the stand main body 41 (on the side of the stand storage section 321 of the rear gripping main body 32). Therefore, the inner surface 41A is a surface that is not exposed when the stand portion 40 is in the retracted state (fully closed state). The outer surface 41B is positioned outside the stand main body 41 and forms part of the outer shape and outer surface of the rectangular parallelepiped grip portion 10 .

The shaft portions 41a are provided on the left and right sides of the U-shaped stand body portion 41 on the inner side (inner surface 42A side) and upper side of the U shape. The shaft portion 41a is a short columnar protrusion that protrudes from the inner side surface 41A of the stand main body portion 41 toward the center of the stand main body portion 41 in the left-right direction. Since the shaft portion 41a is rotatably engaged and connected to the bearing portion 321d, the stand portion 40 is rotatably connected to the grip body portion 30 (rear grip body portion 32).

The locking protrusions 41b are provided on the left and right sides inside and below the U-shaped stand body 41 . Also, the locking protrusion 41b is located on the inner side surface 41A of the stand main body 41. As shown in FIG. The locking protrusion 41b is a protrusion that protrudes 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. The locking protrusion 41b is positioned inside the locking groove 321e when the stand portion 40 is in the retracted state (fully closed state), and locks the stand portion 40 to the grip main body portion 30 (rear grip main body portion 32). do.

As shown in FIGS. 6(a) and 6(b), the support portions 42 are provided one by one on the left and right sides of the inner side surface 41A of the stand main body 41, and stand vertically from the inner side surface 41A. (See also FIGS. 1 and 3(b)). Further, the support portion 42 is formed in a semi-disc shape (a semi-convex disc shape protruding from the inner surface 41A), and about four semicircles (quarter circles) protrude outside the outer peripheral edge of the stand body portion 41. . The support portion 42 is provided so as to face the receiving portion 321b in the rotation axis direction regardless of whether the arm portion 411 (stand portion 40) is opened or closed. An engagement recess 421 is provided on the outer side surface 42B of the support portion 42 . Further, a restriction portion 422 protruding toward the outer surface 42B is provided at the tip of the support portion 42 .

Here, the support portion 42 is arranged inside the through hole 321a provided in the stand housing portion 321 of the rear gripping main body portion 32, and is rotatably supported by the shaft portion 41a and the bearing portion 321d, so that the gripping main body It is rotatably supported with the rear grip main body 32 of the part 30 (see also the enlarged view of part A and the enlarged view of part B in FIG. 3(b)). Therefore, in the arm portion 411 of the stand portion 40 having the support portion 42, the support portion 42 is arranged between the receiving portion 321b and the engaging projection portion 321c inside the through hole 321a.

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

The first engagement recess 421 a is the engagement recess 421 provided closest to the stand main body 41 on the inside of the outer peripheral edge of the outer side surface 42</b>B of the support portion 42 . Also, the opening area of the first engaging recess 421a is about twice that of the second engaging recess 421b. The opening shape of the first engaging recess 421a is formed in an oval shape. As shown in FIG. 6A, the first engagement recess 421a accommodates the engagement projection 321c inside the concave shape when the stand portion 40 is in the retracted state.

Four of the second engagement recesses 421b are provided in parallel with the first engagement recesses 421a in an arc shape. Also, the opening shape of the second engaging recess 421b is formed in a circular shape. The second engagement recess 421b accommodates the engagement projection 321c inside the recess when the stand portion 40 is in the supported state. When the stand portion 40 is in the fully open state, the second engagement recess portion 421b is located at the outermost outer edge of the outer surface 42B of the support portion 42, as shown in FIG. 6B. The engaging protrusion 321c is housed inside the concave shape.

In this way, by configuring the engaging protrusion 321c and the engaging recess 421 (the first engaging recess 421a and the second engaging recess 421b) to be freely engaged and disengaged by a predetermined force, the electric fan 1 can be placed on the stand. It can be stably maintained at 40 arbitrary rotation angles. Further, when the engaging projection 321c and the engaging recess 421 are engaged and disengaged, the arm 411 moves so that the engaging projection 321c is a flat portion between the engaging recesses 421 (a convex portion with respect to the engaging recess 421). ), it is pressed by riding on it and bends slightly inward. If the rigidity of the arm portion 411 is set high, the external force required to rotate the stand portion 40 increases, making it difficult to open and close the stand portion 40 . On the other hand, if the rigidity of the arm portion 411 is set to be low, the external force required for rotating the stand portion 40 is reduced, but the stand portion 40 may be opened and closed unintentionally.

In the present embodiment, since the receiving portion 321b is provided at a position facing the engaging protrusion 321c, even when the arm portion 411 is pressed by the receiving portion 321b, the arm portion 411 is excessively bent inward (both sides of the arm portion 411). movement of the arm portion 411 in a narrowing direction) is restricted. Therefore, the stand part 40 of the present embodiment can be stably supported at an opening/closing angle set by the user while facilitating opening/closing, thereby preventing unintended opening/closing. As for the positional relationship in which the receiving portion 321b and the engaging projection portion 321c are arranged to face each other, it is sufficient that they are positioned on one surface side and the opposite surface side of the support portion 42, and they do not need to be arranged on a straight line. good.

The restricting portion 422 is arranged at the tip of the support portion 42 protruding outside the outer peripheral edge of the stand main body portion 41 . The restricting portion 422 is much smaller than the supporting portion 42 and is formed in the shape of a rectangular parallelepiped (rectangular flat plate) piece. When a force is applied to reduce the rotation angle θ to 0 degrees or less, the restricting portion 422 abuts against the inner surface of the rear gripping body portion 32 of the gripping body portion 30, thereby reducing the rotation angle θ to 0 degrees or less. to prevent

The grill portion 50 forms the outer surface of the blower portion 20 and has the same external shape as the blower portion 20 . Also, the grille portion 50 includes a front grille portion 51 and a rear grille portion 52 .

The front grille portion 51 has an air exhaust portion 51a and side portions 51b. The exhaust part 51a has a circular shape with a disk-like portion near the center thereof, and a straightening vane is provided radially and annularly on the outer periphery thereof. The side portion 51b is formed in a low cylindrical shape having two openings. The front grill portion 51 is formed by providing an air exhaust portion 51a inside one opening of the side portion 51b.

The rear grille portion 52 is formed in a disc shape in the vicinity of its center, and has a mesh-like shape with a plurality of openings extending radially and annularly from the vicinity of the center to the outer circumference. The rear grille portion 52 is connected to the side surface portion 51b of the front grille portion 51 at a leading end rising forward from the outer peripheral side edge.

The fan 60 (impeller) is arranged inside the grill section 50 of the blower section 20 . Further, the fan 60 includes a front fan 61 located on the front side in the front-rear direction and a rear fan 62 located on the rear side in the front-rear direction. The front fan 61 and the rear fan 62 are arranged on the same axis and rotate in opposite directions. In other words, the fan 1 has a configuration of a counter-rotating fan. The electric fan 1 includes a front fan 61 and a rear fan 62 which are counter-rotating fans, so that the air reaches a longer distance than a normal electric fan provided with one fan. Furthermore, by controlling the rotational speed ratio of the front fan 61 and the rear fan 62, the electric fan 1 can change the blowing air from straight air with high directivity that can reach a long distance to diffused air with a wide air blowing range. can.

The fan motor 70 is arranged inside the grille portion 50 of the air blowing portion 20 and on the front grille portion 51 side and the rear grille portion 52 side (the fan motor 70 is indicated by the dashed line in FIGS. 3A and 3B, etc.). position of the motor 70 is shown). Each fan motor 70 pivotally supports a front fan 61 and a rear fan 62 which are the fans 60 and drives the front fan 61 and the rear fan 62 to rotate.

Next, an example of use of the electric fan 1 will be described. Also, here, the electric fan 1 will be described assuming that the stand portion 40 is in the housed state first.

First, the user of the electric fan 1 operates the switch 311 while holding the grip portion 10 of the electric fan 1 to cause the electric fan 1 to start blowing air. At this time, the user can apply wind to any place by moving the hand holding the grip part 10 of the electric fan 1 . In other words, the fan 1 can be used as a portable fan. The engaging protrusion 321c is engaged with the first engaging recess 421a (see FIG. 6A).

Next, the user moves the stand portion 40 from the rear gripping body portion 32 side of the gripping body portion 30 with his or her finger or the like so that the rotation angle θ of the stand portion 40 is 0 degrees or more to open the stand portion 40 . , rotate. At this time, the engaging protrusion 321c slides on the outer side surface 42B of the support portion 42 and engages with any second engaging recess 421b from the first engaging recess 421a. Since the stand portion 40 is configured such that the inner side surfaces 42A of the left and right support portions 42 can be supported by the receiving portions 321b, even if the rotation angle θ of the stand portion 40 changes, the excessive force of the support portion 42 is reduced. or to prevent an imbalance in left-right direction forces due to warping of one of the support portions 42, and to stabilize the holding force of the stand portion 40 connected to the rear grip body portion 32 (gripping body portion 30). can be made Thereby, the stand part 40 can be adjusted to an arbitrary rotation angle θ and stabilized.

Next, as shown in FIG. 1, the user positions the electric fan 1 so that the lower ends of the contact surface protrusions 322 and the stand portion 40 are in contact with the ground surface. Since the electric fan 1 is grounded by the contact surface protrusions 322 and the stand part 40, the grounding is more stable. At this time, since the fan 60 of the electric fan 1 is rotating, a force in the front-rear direction is applied to the grip portion 10 of the electric fan 1 on the ground side. However, the electric fan 1 is grounded by the contact surface projection portion 322 and the stand portion 40, and in addition, the holding force for connecting the stand portion 40 to the rear grip body portion 32 of the grip body portion 30 is set high as described above. Since it is possible, it is possible to prevent movement in the front-rear direction due to the reaction force of the blown air, vibration, or the like. As described above, the user can use the electric fan 1 without holding the grip portion 10 of the electric fan 1 by hand. In other words, the fan 1 can also be used as a stationary fan because the stand portion 40 is rotatable.

Then, the user can use the electric fan 1 as a portable electric fan again by setting the rotation angle θ of the stand portion 40 to 0 degree and putting the stand portion 40 into the retracted state.

Although the embodiments of the present invention have been described above, the present invention is not limited to the embodiments and can be implemented with various modifications. For example, in the electric fan 1, the arrangement of the receiving portion 321b and the engaging protrusion 321c inside the through hole 321a may be reversed. In that case, the engagement recess 421 provided in the support portion 42 of the stand portion 40 can be provided in the inner side surface 42A of the support portion 42 .

In addition, the through hole 321a may be a non-through hole, a concave portion, a hollow portion, an opening, or the like, which can accommodate the distal end side of the arm portion 411 including the support portion 42. The receiving portion 321b and the engaging projection portion 321c described in the embodiment may be arranged to face each other.

Further, the electric fan 1 is not limited to the fan 60 of the air blowing section 20 having a counter-rotating fan structure, and may have a structure consisting of one fan 60, for example.

Further, the stand part 40 may be rotatably connected to the main body part 100 by one arm part 411 or three or more arm parts 411 .

1 electric fan 10 grip portion 20 blower portion 30 grip body portion 31 front grip body portion 32 rear grip body portion 40 stand portion 41 stand body portion 41A inner side surface 41B outer side surface 41a shaft portion 41b locking protrusion 42 support portion 42A inner side surface 42B Outer surface 50 Grill portion 51 Front grill portion 51a Exhaust portion 51b Side portion 52 Rear grill portion 60 Fan 61 Front fan 62 Rear fan 70 Fan motor 100 Body portion 311 Switch 321 Stand storage portion 321a Through hole 321b Receiving portion 321c Engagement projection Part 321d Bearing 321e Locking groove 322 Contact surface projection 411 Arm 421 Engagement recess 421a First engagement recess 421b Second engagement recess 422 Regulating portion θ Rotation angle

Claims (7)

a stand having an arm;
a receiving portion that rotatably supports the arm portion and restricts movement of the arm portion in the direction of the rotation axis; a body portion including an engaging portion capable of adjusting a rotation angle;
An electric fan characterized by comprising: The main body includes a grip main body and a blower connected to the grip main body for blowing air,
The receiving portion is provided on the grip main body,
The electric fan according to claim 1, characterized by: The stand portion has a semi-disc-shaped support portion provided so as to face the receiving portion regardless of whether the arm portion is opened or closed,
The receiving portion is provided inside the supporting portion,
3. The electric fan according to claim 1 or 2, characterized in that: 4. The electric fan according to claim 3, wherein the supporting portion has an engaged portion that can be engaged with the engaging portion. 5. The electric fan according to claim 4, wherein a plurality of said engaged portions are provided and arranged side by side on the outer peripheral edge side of said support portion. 6. The electric fan according to any one of claims 1 to 5, wherein the main body has a surface-contacting protrusion. The stand part is formed in a U shape,
The main body portion has a U-shaped recessed stand storage portion capable of storing the stand portion,
The electric fan according to any one of claims 1 to 6, characterized in that:

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