JP2023166106A - Electric fan - Google Patents

Abstract

To provide an electric fan which can be kept from inclining during transportation.SOLUTION: An electric fan 1 has a layout in which a handle 22, a fan motor 14 and a fan 15, a swinging mechanism 16, an operation panel 23, a battery pack attachment portion 17, and an AC adapter accommodation portion 21 are aligned in order from the top along a center axis extending in a vertical direction so as to intersect with an axis of the fan 15 in axial view of the fan 15 in a reference state where a main body 10 is oriented frontward. The AC adapter accommodation portion 21 is located behind the battery pack attachment portion 17.SELECTED DRAWING: Figure 4

Description

The present invention relates to an electric fan that uses a battery pack as a power source.

Patent Document 1 listed below discloses an electric fan driven by a detachable battery pack.

Japanese Patent Application Publication No. 2014-212062

When considering providing the swing mechanism in the electric fan of Patent Document 1, it is necessary to change the arrangement of the battery pack, and depending on the change, the center of gravity may shift from the center of the main body in the left-right direction, making the main body prone to tilting during transportation. Become.

An object of the present invention is to provide an electric fan that can suppress inclination during transportation.

An embodiment of the present invention is an electric fan. This electric fan is
a main body having a fan motor and a fan driven by the fan motor;
a main body support part that rotatably supports the main body around an axis that intersects with the axial direction of the fan motor;
and a swinging mechanism that rotates the main body relative to the main body support part.
The main body support part has a battery pack mounting part into which a battery pack that serves as a power source for supplying power to the fan motor and the swinging mechanism can be mounted,
In a reference state in which the main body faces the front, the fan motor, the swing mechanism, and the battery pack mounting portion extend in the vertical direction to intersect with the axis of the fan when viewed in the axial direction of the fan. They are arranged vertically along the central axis.

The present invention may be expressed as a "cordless fan" or a "blower," and such expressions are also effective as aspects of the present invention.

According to the present invention, it is possible to provide an electric fan that can suppress inclination during transportation.

FIG. 1 is a front view of an electric fan 1 according to Embodiment 1 of the present invention. A right side view of the electric fan 1. AA sectional view of FIG. 1. 2 is a perspective sectional view of the electric fan 1, taken along line AA in FIG. 1. FIG. FIG. 1 is a rear view of the electric fan 1. FIG. 2 is an enlarged perspective view of the AC adapter housing part 21 of the electric fan 1 and its surroundings. (A) is an explanatory diagram of the center of gravity of the electric fan 1 viewed from the front. (B) is an explanatory diagram of the center of gravity of the electric fan 1 seen from the right side. The front view of electric fan 2 concerning Embodiment 2 of the present invention.

In the following, the same or equivalent components, members, etc. shown in each drawing are denoted by the same reference numerals, and redundant explanations will be omitted as appropriate. The embodiments are illustrative rather than limiting. All features and combinations thereof described in the embodiments are not necessarily essential to the invention.

(Embodiment 1)
1 to 7 relate to an electric fan 1 according to Embodiment 1 of the present invention. The electric fan 1 is also called a cordless fan. 1 to 3 and 5 define front and back, top and bottom, and left and right directions that are orthogonal to each other in the electric fan 1. The vertical direction is a direction parallel to the rotation axis of the electric fan 1 to swing left and right.

The electric fan 1 has a main body 10 and a main body support part 11. The main body 10 is supported by a main body support portion 11 so as to be swingable left and right and rotatable up and down. 1 to 5 and FIGS. 7(A) and 7(B) show a state in which the main body 10 faces forward (hereinafter referred to as a "reference state").

The front-rear direction is a direction parallel to the rotation axis of the fan motor 14 in the reference state. The range in which the main body 10 can be swung relative to the standard state is, for example, 90 degrees left and right. The rotatable range of the main body 10 relative to the reference state is, for example, 90 degrees upward and 45 degrees downward.

The main body 10 includes a fan motor 14 and a fan 15 driven by the fan motor 14. The fan 15 rotates together with the fan motor 14 and generates a forward airflow in a standard state.

The main body 10 includes, as a main body housing, a motor accommodating portion 28 that accommodates and holds the fan motor 14, a fan head 29 that covers the rear side of the fan 15 from the rear side, and a fan guard that covers the front side of the fan 15 from the front side. 30.

The main body 10 has a handle 22 for carrying the electric fan 1. The handle 22 is rotatably supported on the top of the fan head 29. 1 to 5 show the handle 22 in a lying position. FIGS. 7(A) and 7(B) show the handle 22 in an upright position. When carrying the electric fan 1, the handle 22 is in an upright position.

The main body support part 11 has a base part 12 and an arm part 13.

The base portion 12 has a battery pack mounting portion 17 . The battery pack mounting section 17 is configured to be able to mount a plurality of (here, two) battery packs 25. The battery pack mounting section 17 includes a first battery pack mounting section 18 and a second battery pack mounting section 19 that are arranged in the left-right direction. The battery pack mounting section 17 is a continuous range from the left end of the first battery pack mounting section 18 to the right end of the second battery pack mounting section 19, that is, the first battery pack mounting section 18 and the second battery pack mounting section 19. It is defined as a range that includes the range between.

The battery pack 25 can be detachably attached to each of the first battery pack attachment section 18 and the second battery pack attachment section 19 from the front. The battery pack 25 serves as a power source that supplies power to the fan motor 14 and the swing mechanism 16, which will be described later. The rated voltage of the battery pack 25 is, for example, 18V or 14.4V. The electric fan 1 is operable as long as the battery pack 25 is attached to at least one of the first battery pack attachment part 18 and the second battery pack attachment part 19. When the battery packs 25 are attached to both the first battery pack attachment section 18 and the second battery pack attachment section 19, the two battery packs 25 are connected in parallel.

The base portion 12 has an operation panel 23 . The operation panel 23 is located above the battery pack mounting section 17 and faces forward. The operation panel 23 includes, for example, four buttons 24 (switches). The buttons 24 include, for example, a power button, a wind speed switching button, a timer button, and a swing switching button. The wind speed can be set, for example, in four stages, and the timer time can be set, for example, in three stages. The swing switching button enables or disables automatic swing by the swing mechanism 16, which will be described later.

The base portion 12 has, for example, four grounding portions 31 for installation on a floor surface or the like. The width of the base portion 12 is smaller than the width of the arm portion 13.

As shown in FIGS. 5 and 6, the base portion 12 has a DC input portion 20 on the back surface. The DC input section 20 is provided to use an external power source as a power source for supplying power to the fan motor 14 and the swing mechanism 16, which will be described later. The DC input section 20 is an AC adapter connection section to which an output plug of an AC adapter 27, which will be described later, can be connected.

The base portion 12 has an AC adapter accommodating portion 21 . The AC adapter accommodating portion 21 is located behind the battery pack mounting portion 17 and opens on the back surface of the base portion 12 . The opening of the AC adapter accommodating portion 21 is covered by a lid 26 so as to be openable and closable. The AC adapter accommodating section 21 can accommodate an AC adapter 27. The AC adapter 27 can be connected to an external AC power source, and can convert the AC voltage of the external AC power source into a DC voltage and supply it to the DC input section 20 .

The arm portion 13 is located above the base portion 12. The arm portion 13 is rotatable in the left-right direction with respect to the base portion 12 by a swinging mechanism 16, which will be described later. The arm portion 13 has a semi-arc shape or a semi-cylindrical shape that opens upward. The arm portion 13 supports the left end and right end of the main body 10, respectively. Supported by the arm portion 13, the main body 10 is rotatable about an axis perpendicular to the rotational axis direction and the vertical direction of the fan motor 14.

The main body support part 11 has a swing mechanism 16. The swinging mechanism 16 is supported within the base portion 12 and rotatably supports the arm portion 13 in the left-right direction. The swinging mechanism 16 swingably supports the main body 10 via the arm portion 13. The axis of rotation of the main body 10 and arm portion 13 by the swing mechanism 16 intersects the axis of rotation of the fan motor 14 . The swing mechanism 16 has a built-in swing motor and can automatically rotate the arm portion 13 in the left and right directions. Note that the user can also manually rotate the main body 10 and the arm portion 13 in the left-right direction.

The central axis shown in FIGS. 1, 2, 5, 7(A) and 7(B) is the central axis of the electric fan 1 (hereinafter referred to as the "central axis"), and the axis of the fan 15 (rotational axis of the fan motor 14). ) is an axis that extends in the vertical direction so as to intersect with The central axis is coaxial with the axis of rotation of the main body 10 and the arm portion 13 by the swing mechanism 16.

In the standard state, when viewed in the axial direction of the fan 15, the handle 22, the fan motor 14, the fan 15, the swinging mechanism 16, the battery pack mounting part 17, and the AC adapter accommodating part 21 are arranged in order from the top along the central axis. and are lined up. The swinging mechanism 16 and the battery pack mounting portion 17 are in a positional relationship in which they overlap in the vertical direction, that is, in a positional relationship in which their ranges in the front-rear and left-right directions overlap. The operation panel 23 is located on the central axis of the fan 15 when viewed in the axial direction in the reference state.

The central axis passes through the center between the first battery pack mounting section 18 and the second battery pack mounting section 19, that is, the center of the battery pack mounting section 17 when viewed from the front. That is, the first battery pack mounting part 18 and the second battery pack mounting part 19 are arranged symmetrically with respect to a plane perpendicular to the left-right direction including the central axis.

FIGS. 7(A) and 7(B) are illustrations of the center of gravity of the electric fan 1.

The center of gravity G1 is the center of gravity of the electric fan 1 in a state where the battery pack 25 is not attached and the AC adapter 27 is not accommodated in the AC adapter accommodating portion 21.

The center of gravity G2 is the center of gravity of the electric fan 1 when the battery pack 25 is attached only to the second battery pack attachment section 19 (the right battery pack attachment section) and the AC adapter 27 is not accommodated in the AC adapter accommodation section 21. .

The center of gravity G3 is the center of gravity of the electric fan 1 when the battery pack 25 is attached to both the first battery pack attachment section 18 and the second battery pack attachment section 19 and the AC adapter 27 is not accommodated in the AC adapter accommodation section 21. be.

The center of gravity G4 is the center of gravity of the electric fan 1 in a state where the battery pack 25 is not attached and the AC adapter 27 is accommodated in the AC adapter accommodating portion 21.

The center of gravity G5 is the center of gravity of the electric fan 1 in a state where the battery pack 25 is attached only to the second battery pack attachment part 19 (the right battery pack attachment part) and the AC adapter 27 is housed in the AC adapter housing part 21.

The center of gravity G6 is the center of gravity of the electric fan 1 when the battery pack 25 is attached to both the first battery pack attachment part 18 and the second battery pack attachment part 19 and the AC adapter 27 is housed in the AC adapter housing part 21. .

As shown in FIG. 7(A), the centers of gravity G1 to G6 are all located close to the central axis when viewed from the front. Further, as shown in FIG. 7(B), the centers of gravity G1 to G6 are located directly below or near directly below the handle 22 when viewed from the left and right.

According to this embodiment, the following effects can be achieved.

(1) The electric fan 1 has a battery pack mounting portion 17 below the swing mechanism 16. Therefore, compared to the case where the swing mechanism 16 and the battery pack mounting part 17 are arranged side by side in the left and right direction, it is possible to suppress the base part 12 from increasing in size in the left and right direction, resulting in a slim appearance when viewed from the front. The ground contact area of the electric fan 1 on the floor or desk surface can be reduced.

(2) In the standard state, the electric fan 1 includes, as viewed in the axial direction of the fan 15, the handle 22, the fan motor 14, the fan 15, the swing mechanism 16, and the battery pack mounting part, in order from the top along the central axis. 17 and AC adapter accommodating section 21 are arranged side by side. Here, since the battery pack mounting part 17 exists on the central axis when viewed in the axial direction of the fan 15 in the standard state, compared to the case where the battery pack mounting part 17 is away from the central axis and closer to the left or right side. , the center of gravity of the electric fan 1 in the standard state becomes closer to the central axis. Therefore, when carrying the electric fan 1 by the handle 22, it is possible to prevent the electric fan 1 from tilting, making it easy to carry.

(3) The base portion 12 has an AC adapter accommodating portion 21 behind the battery pack mounting portion 17 and below the swinging mechanism 16, and the AC adapter 27 can be accommodated in the AC adapter accommodating portion 21. Therefore, there is no need to store or carry the AC adapter 27 separately from the electric fan 1, which is convenient. Furthermore, the risk of mixing it up with another AC adapter or erroneous connection, and the risk of losing the AC adapter 27 are low. Furthermore, by housing the heavy AC adapter 27 in the lower part of the base portion 12, the center of gravity of the electric fan 1 is lowered, and a sense of stability is enhanced.

(4) Since the handle 22 is foldable, the size of the electric fan 1 when stored is compact, which is convenient.

(Embodiment 2)
FIG. 8 is a front view of the electric fan 2 according to Embodiment 2 of the present invention. While the electric fan 1 can be equipped with two battery packs 25, the electric fan 1 can be equipped with only one battery pack 25.

In the electric fan 2, the base part 12 of the electric fan 1 is replaced with a base part 112. In the base part 112, the battery pack mounting part 17 of the base part 12 is replaced with a battery pack mounting part 117. Only one battery pack 25 can be attached to the battery pack attachment section 117. The central axis passes through the center of the battery pack mounting portion 117 in the left-right direction.

Other points of this embodiment are the same as those of the first embodiment. This embodiment can also produce the same effects as the first embodiment.

Although the present invention has been described above using the embodiments as examples, those skilled in the art will understand that various modifications can be made to each component and each processing process of the embodiments within the scope of the claims. By the way. Modifications will be discussed below.

The rated voltage of the battery pack 25, the number of connectable battery packs 25, the number of buttons 24, the angular range of vertical and horizontal movement of the main body 10, etc., which are illustrated as specific numerical values in the embodiment, are within the scope of the invention. is not limited in any way and can be arbitrarily changed according to the required specifications.

DESCRIPTION OF SYMBOLS 1, 2... Electric fan, 10... Main body, 11... Main body support part, 12... Base part, 13... Arm part, 14... Fan motor, 15... Fan, 16... Swing mechanism, 17... Battery pack attachment part, 18... First battery pack mounting part, 19... Second battery pack mounting part, 20... DC input part, 21... AC adapter accommodating part, 22... Handle, 23... Operation panel, 24... Button (switch), 25... Battery pack, 26...Lid, 27...AC adapter, 28...Motor housing section, 29...Fan head, 30...Fan guard, 31...Grounding section.

Claims (6)

a main body having a fan motor and a fan driven by the fan motor;
a main body support part that rotatably supports the main body around an axis that intersects with the axial direction of the fan motor;
a swinging mechanism that rotates the main body relative to the main body support part;
The main body support part has a battery pack mounting part into which a battery pack that serves as a power source for supplying power to the fan motor and the swinging mechanism can be mounted,
In a reference state in which the main body faces the front, the fan motor, the swing mechanism, and the battery pack mounting portion extend in the vertical direction to intersect with the axis of the fan when viewed in the axial direction of the fan. arranged vertically along the central axis,
Fan. The main body support part has a base part and an arm part that is rotatable with respect to the base part by the swinging mechanism and supports the main body,
The swinging mechanism and the battery pack mounting part are provided in the base part,
The electric fan according to claim 1. The base portion has an operation panel on the central axis and above the battery pack mounting portion when viewed in the axial direction of the fan.
The electric fan according to claim 2. The base portion has a DC input portion for using an external power source as the power source, and an AC adapter accommodating portion capable of accommodating an AC adapter,
The AC adapter accommodating section is located behind the battery pack mounting section.
The electric fan according to any one of claims 1 to 3. The battery pack mounting section is configured to be able to mount a plurality of battery packs.
The electric fan according to any one of claims 1 to 3. Has a handle for carrying
In the reference state, when viewed in the axial direction of the fan, the handle, the fan, the fan motor, the swing mechanism, and the battery pack mounting portion are arranged in order from above the central axis.
The electric fan according to any one of claims 1 to 3.

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