electric fan

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

Technical Field

[0001] The present invention relates to a fan powered by a battery pack.

Background Art

[0002] The following Patent Document 1 discloses a fan driven by a detachable battery pack.

Prior Art Document

Patent Document

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When considering providing a head shaking mechanism to the fan of Patent Document 1, it is necessary to change the arrangement of the battery pack. Depending on the mode of change, the center of gravity position shifts in the left-right direction from the center of the main body, and the main body tends to tilt during transportation.

[0005] An object of the present invention is to provide a fan capable of suppressing tilting during transportation.

Means for Solving the Problems

[0006] One aspect of the present invention is a fan motor, a fan driven by the fan motor, A carrying handle, a main body having a main body support portion that supports the main body rotatably about an axis intersecting the axial direction of the fan motor, A center that extends vertically a head shaking mechanism that rotates the main body with respect to the main body support portion, Centered on the aforementioned central axis Centered on the aforementioned central axis Centered on the aforementioned central axis The main body support portion has a battery pack mounting portion on which a battery pack serving as a power source for supplying power to the fan motor and the head shaking mechanism can be mounted. The structure comprises a base portion, an arm portion that is rotatable relative to the base portion by the swivel mechanism and supports the main body, having The base portion includes the swivel mechanism, the battery pack mounting portion, the DC input portion for using an external power source as the power source, the AC adapter housing portion capable of housing an AC adapter, and the lid that can open and close the AC adapter housing portion. In the reference state where the main body faces the front, in the axial direction view of the fan, Starting from the top of the central axis, the handle and, the fan motor, the pivoting mechanism, and the battery pack mounting portion and the AC adapter housing are arranged vertically along a central axis extending in the vertical direction so as to intersect the axis of the fan The aforementioned and are arranged vertically along the central axis. In addition, the AC adapter housing is located behind the battery pack mounting section. It is a fan. . One aspect of the present invention is A main body having a fan motor, a fan driven by the fan motor, and a carrying handle, A body support portion that supports the main body so that it can rotate around a central axis that extends vertically so as to intersect with the axial direction of the fan motor, The main body has a pivoting mechanism that rotates the main body support about the central axis, The main support section of the fan is a fan having a battery pack mounting section to which a battery pack that serves as a power source for supplying power to the fan motor and the oscillation mechanism can be attached, In the standard state where the main body is facing forward, the fan motor, the oscillating mechanism, and the battery pack mounting section are aligned vertically along the central axis in an axial view of the fan. The battery pack mounting section is configured to accommodate two battery packs, and the center of gravity of the fan is positioned directly below the handle in both the state where both battery packs are mounted in the battery pack mounting section and the state where only one of the two battery packs is mounted in the battery pack mounting section. It's a fan.

[0007] The present invention may be expressed as a "cordless fan", a "blower", etc., and those expressed as such are also effective as aspects of the present invention.

Effects of the Invention

[0008] According to the present invention, it is possible to provide a blower that can suppress tilting during transportation.

Brief Description of the Drawings

[0009] [Figure 1]}Front view of the blower 1 according to Embodiment 1 of the present invention. [Figure 2] Right side view of the blower 1. [Figure 3] Cross-sectional view taken along line A-A of FIG. 1. [Figure 4] Perspective cross-sectional view of the blower 1, which is a perspective cross-sectional view cut along line A-A of FIG. 1. [Figure 5] Rear view of the blower 1. [Figure 6] Enlarged perspective view of the AC adapter housing portion 21 of the blower 1 and its periphery. [Figure 7](A) is an explanatory diagram of the center of gravity of the fan 1 as viewed from the front. (B) is an explanatory diagram of the center of gravity of the fan 1 as viewed from the right. [Figure 8] Front view of the fan 2 according to Embodiment 2 of the present invention.

Mode for Carrying Out the Invention

[0010] Hereinafter, the same or equivalent components, members, etc. shown in each drawing are denoted by the same reference numerals, and repeated explanations are omitted as appropriate. The embodiments are illustrative and not restrictive of the invention. Not all features and combinations thereof described in the embodiments are necessarily essential to the invention.

[0011] (Embodiment 1) FIGS. 1 to 7 relate to the fan 1 according to Embodiment 1 of the present invention. The fan 1 is also called a cordless fan. FIGS. 1 to 3 and FIG. 5 define the front-rear, up-down, and left-right directions perpendicular to each other in the fan 1. The up-down direction is a direction parallel to the rotation axis of the fan motor 14 for swinging the fan 1 left and right.

[0012] The fan 1 has a main body 10 and a main body support portion 11. The main body 10 is supported by the main body support portion 11 so as to be swingable left and right and rotatable up and down. FIGS. 1 to 5 and FIGS. 7(A) and (B) show the state in which the main body 10 faces forward (hereinafter referred to as the "reference state").

[0013] The front-rear direction is a direction parallel to the rotation axis of the fan motor 14 in the reference state. The swingable range of the main body 10 with respect to the reference state is, for example, 90 degrees to the left and right, respectively. The rotatable range of the main body 10 with respect to the reference state is, for example, 90 degrees upward and 45 degrees downward.

[0014] The main body 10 has 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 an airflow directed forward in the reference state.

[0015] The main body 10, as a main body housing, includes a motor housing section 28 for housing and holding the fan motor 14, a fan head 29 that covers the rear and side rear of the fan 15, and a fan guard 30 that covers the side front and front of the fan 15.

[0016] The main body 10 has a handle 22 for carrying the fan 1. The handle 22 is rotatably supported on the top of the fan head 29. Figures 1 to 5 show the handle 22 in a reclined position. Figures 7(A) and 7(B) show the handle 22 in an upright position. When carrying the fan 1, the handle 22 is in an upright position.

[0017] The main support section 11 has a base section 12 and an arm section 13.

[0018] The base portion 12 has a battery pack mounting portion 17. The battery pack mounting portion 17 is configured to accommodate multiple (in this case, two) battery packs 25. The battery pack mounting portion 17 has a first battery pack mounting portion 18 and a second battery pack mounting portion 19 arranged in the left-right direction. The battery pack mounting portion 17 is defined as a continuous range from the left end of the first battery pack mounting portion 18 to the right end of the second battery pack mounting portion 19, that is, a range that also includes the space between the first battery pack mounting portion 18 and the second battery pack mounting portion 19.

[0019] A battery pack 25 can be detachably attached from the front to each of the first battery pack mounting section 18 and the second battery pack mounting section 19. The battery pack 25 serves as a power source that supplies power to the fan motor 14 and the oscillation mechanism 16 described later. The rated voltage of the battery pack 25 is, for example, 18V or 14.4V. The fan 1 can operate if a battery pack 25 is attached to at least one of the first battery pack mounting section 18 and the second battery pack mounting section 19. If a battery pack 25 is attached to both the first battery pack mounting section 18 and the second battery pack mounting section 19, the two battery packs 25 are connected in parallel.

[0020] The base unit 12 has an operation panel 23. The operation panel 23 is located above the battery pack mounting unit 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 fan speed switching button, a timer button, and an oscillation switching button. The fan speed can be set in, for example, four levels, and the timer can be set in, for example, three levels. The oscillation switching button can switch the automatic oscillation function of the oscillation mechanism 16, described later, on or off.

[0021] The base portion 12 has, for example, four contact points 31 for installation on a floor or the like. The width of the base portion 12 is smaller than the width of the arm portion 13.

[0022] As shown in Figures 5 and 6, the base unit 12 has a DC input unit 20 on its back. The DC input unit 20 is provided for using an external power supply to power the fan motor 14 and the oscillating mechanism 16, which will be described later. The DC input unit 20 is an AC adapter connection unit to which the output plug of the AC adapter 27, which will be described later, can be connected.

[0023] The base unit 12 has an AC adapter housing unit 21. The AC adapter housing unit 21 is located behind the battery pack mounting unit 17 and opens to the back of the base unit 12. The opening of the AC adapter housing unit 21 is covered by a lid 26 that can be opened and closed. The AC adapter housing unit 21 can house 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 unit 20.

[0024] The arm portion 13 is located above the base portion 12. The arm portion 13 is rotatable in the left-right direction relative to the base portion 12 by a swivel mechanism 16, which will be described later. The arm portion 13 is semi-circular or semi-cylindrical in shape, opening upwards. The arm portion 13 supports the left and right ends of the main body 10, respectively. With the support of the arm portion 13, the main body 10 is rotatable around an axis perpendicular to the rotation axis direction and the vertical direction of the fan motor 14.

[0025] The main support section 11 has a swivel mechanism 16. The swivel mechanism 16 is supported within the base section 12 and supports the arm section 13 to rotate in the left-right direction. The swivel mechanism 16 supports the main body 10 so that it can oscillate via the arm section 13. The rotation axes of the main body 10 and the arm section 13 by the swivel mechanism 16 intersect with the rotation axis of the fan motor 14. The swivel mechanism 16 has a built-in swivel motor and can automatically rotate the arm section 13 in the left-right direction. The user can also manually rotate the main body 10 and the arm section 13 in the left-right direction.

[0026] The central axis shown in Figures 1, 2, 5, 7(A), and 7(B) is the central axis of the fan 1 (hereinafter referred to as the "central axis"), and is an axis that extends vertically so as to intersect with the axis of the fan 15 (the rotation axis of the fan motor 14). The central axis is coaxial with the rotation axis of the main body 10 and the arm section 13 due to the oscillating mechanism 16.

[0027] In the standard configuration, when viewed axially from the fan 15, the handle 22, fan motor 14 and fan 15, oscillation mechanism 16, battery pack mounting section 17 and AC adapter housing section 21 are arranged in order from top to bottom along the central axis. The oscillation mechanism 16 and the battery pack mounting section 17 are positioned so that they overlap in the vertical direction, meaning their ranges of presence overlap in the front-to-back and left-to-right directions. The control panel 23 is located on the central axis when viewed axially from the fan 15 in the standard configuration.

[0028] The central axis, when viewed from the front, passes through the center between the first battery pack mounting section 18 and the second battery pack mounting section 19, that is, through the center of the battery pack mounting section 17. In other words, the first battery pack mounting section 18 and the second battery pack mounting section 19 are arranged symmetrically with respect to a plane perpendicular to the left-right direction that includes the central axis.

[0029] Figures 7(A) and 7(B) are explanatory diagrams of the center of gravity of fan 1.

[0030] The center of gravity G1 is the center of gravity of the fan 1 when the battery pack 25 is not installed and the AC adapter 27 is not housed in the AC adapter housing 21.

[0031] The center of gravity G2 is the center of gravity of the fan 1 when the battery pack 25 is installed only in the second battery pack mounting section 19 (the right-side battery pack mounting section) and the AC adapter 27 is not housed in the AC adapter housing section 21.

[0032] The center of gravity G3 is the center of gravity of the fan 1 when the battery pack 25 is installed in both the first battery pack mounting section 18 and the second battery pack mounting section 19, and the AC adapter 27 is not housed in the AC adapter housing section 21.

[0033] The center of gravity G4 is the center of gravity of the fan 1 when the battery pack 25 is not installed and the AC adapter 27 is housed in the AC adapter housing 21.

[0034] The center of gravity G5 is the center of gravity of the fan 1 when the battery pack 25 is installed only in the second battery pack mounting section 19 (the right-side battery pack mounting section) and the AC adapter 27 is housed in the AC adapter housing section 21.

[0035] The center of gravity G6 is the center of gravity of the fan 1 when the battery pack 25 is installed in both the first battery pack mounting section 18 and the second battery pack mounting section 19 and the AC adapter 27 is housed in the AC adapter housing section 21.

[0036] As shown in Figure 7(A), the centers of gravity G1 to G6 are all located close to the central axis when viewed from the front. Also, as shown in Figure 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 or right.

[0037] According to this embodiment, the following effects can be achieved.

[0038] (1) The fan 1 has a battery pack mounting section 17 below the oscillating mechanism 16. Therefore, compared to the case where the oscillating mechanism 16 and the battery pack mounting section 17 are aligned in the left-right direction, the base section 12 can be made larger in the left-right direction, resulting in a slim appearance when viewed from the front, and the contact area of ​​the fan 1 on the floor or desk surface can be reduced.

[0039] (2) In the standard state, the fan 1 has a layout in which, when viewed axially from the fan 15, the handle 22, the fan motor 14 and fan 15, the oscillation mechanism 16, the battery pack mounting section 17 and the AC adapter housing section 21 are arranged from top to bottom along the central axis. Here, in the standard state, when viewed axially from the fan 15, the battery pack mounting section 17 is on the central axis, so the center of gravity of the fan 1 in the standard state is closer to the central axis compared to when the battery pack mounting section 17 is off the central axis and shifted to one side. Therefore, when carrying the fan 1 by the handle 22, tilting of the fan 1 can be suppressed, making it easy to carry.

[0040] (3) The base unit 12 has an AC adapter housing 21 located behind the battery pack mounting unit 17 and below the oscillating mechanism 16, and the AC adapter 27 can be housed in the AC adapter housing 21. This eliminates the need to store or carry the AC adapter 27 separately from the fan 1, which is convenient. Furthermore, the risk of mistaking it for another AC adapter, incorrect connection, and loss of the AC adapter 27 are reduced. Moreover, by housing the heavy AC adapter 27 in the lower part of the base unit 12, the center of gravity of the fan 1 is lowered, increasing its stability.

[0041] (4) Because the handle 22 is foldable, the size of the fan 1 when stored becomes compact and convenient.

[0042] (Embodiment 2) Figure 8 is a front view of fan 2 according to Embodiment 2 of the present invention. While fan 1 could accommodate two battery packs 25, fan 2 can accommodate only one battery pack 25.

[0043] Fan 2 is the same as fan 1, but with the base unit 12 replaced by the base unit 112. The base unit 112 is the same as base unit 12, but with the battery pack mounting unit 117 replaced by the battery pack mounting unit 117. The battery pack mounting unit 117 can accommodate only one battery pack 25. The central axis passes through the center of the battery pack mounting unit 117 in the left-right direction.

[0044] Other aspects of this embodiment are the same as those of Embodiment 1. This embodiment can also achieve the same effects as Embodiment 1.

[0045] The present invention has been described above using embodiments as examples, but it will be understood by those skilled in the art that various modifications are possible to each component and each processing step of the embodiments within the scope of the claims. Modifications will be discussed below.

[0046] The rated voltage of the battery pack 25, the number of connectable battery packs 25, the number of buttons 24, and the angular range of the vertical and horizontal movement of the main unit 10, as exemplified by specific numerical values ​​in the embodiment, do not limit the scope of the invention in any way and can be arbitrarily changed to suit the required specifications. [Explanation of Symbols]

[0047] 1, 2... Fan, 10... Main unit, 11... Main unit support, 12... Base, 13... Arm, 14... Fan motor, 15... Fan, 16... Oscillating mechanism, 17... Battery pack mounting section, 18... First battery pack mounting section, 19... Second battery pack mounting section, 20... DC input section, 21... AC adapter housing, 22... Handle, 23... Control panel, 24... Button (switch), 25... Battery pack, 26... Cover, 27... AC adapter, 28... Motor housing, 29... Fan head, 30... Fan guard, 31... Grounding section.

Claims

1. A main body having a fan motor, a fan driven by the fan motor, and a carrying handle, A body support portion that supports the main body so that it can rotate around a central axis that extends vertically so as to intersect with the axial direction of the fan motor, The main body has a pivoting mechanism that rotates the main body support about the central axis, The main body support portion includes a battery pack mounting portion on which a battery pack that serves as a power source for supplying power to the fan motor and the oscillation mechanism can be attached, a base portion, and an arm portion that is rotatable relative to the base portion by the oscillation mechanism and supports the main body. The base portion includes the swivel mechanism, the battery pack mounting portion, the DC input portion for using an external power source as the power source, the AC adapter housing portion capable of housing an AC adapter, and the lid that can open and close the AC adapter housing portion. In the standard state where the main body is facing forward, in an axial view of the fan, the handle, the fan motor, the oscillating mechanism, the battery pack mounting section, and the AC adapter housing section are arranged vertically along the central axis that extends vertically and intersects with the axis of the fan, in order from the top of the central axis, and the AC adapter housing section is located behind the battery pack mounting section. Electric fan.

2. 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 1.

3. The battery pack mounting section is configured to accommodate multiple battery packs, and the center of gravity of the fan is positioned directly below the handle in both the state where two of the multiple battery packs are mounted in the battery pack mounting section and the state where only one of the multiple battery packs is mounted in the battery pack mounting section. The electric fan according to claim 1.

4. A state in which two of the plurality of battery packs are mounted in the battery pack mounting section and the AC adapter is housed in the AC adapter housing section, In the state in which only one of the plurality of battery packs is installed in the battery pack mounting section and the AC adapter is housed in the AC adapter housing section, In the state in which two of the plurality of battery packs are installed in the battery pack mounting section and the AC adapter is not housed in the AC adapter housing section, In the state in which only one of the plurality of battery packs is installed in the battery pack mounting section and the AC adapter is not housed in the AC adapter housing section, In all states, the center of gravity of the fan is located directly below the handle. The electric fan according to claim 3.

5. A main body having a fan motor, a fan driven by the fan motor, and a carrying handle, A body support portion that supports the main body so that it can rotate around a central axis that extends vertically so as to intersect with the axial direction of the fan motor, The main body has a pivoting mechanism that rotates the main body support about the central axis, The main support section of the fan is a fan having a battery pack mounting section to which a battery pack that serves as a power source for supplying power to the fan motor and the oscillation mechanism can be attached, In the standard state where the main body is facing forward, the fan motor, the oscillating mechanism, and the battery pack mounting section are aligned vertically along the central axis in an axial view of the fan. The battery pack mounting section is configured to accommodate two battery packs, and the center of gravity of the fan is positioned directly below the handle in both the state where both battery packs are mounted in the battery pack mounting section and the state where only one of the two battery packs is mounted in the battery pack mounting section. Electric fan.

6. The battery pack mounting section comprises a first battery pack mounting section capable of mounting one of the two battery packs, and a second battery pack mounting section capable of mounting the other of the two battery packs, In the aforementioned reference state, in an axial view of the fan, the first battery pack mounting portion and the second battery pack mounting portion are arranged side by side in the left-right direction, and the central axis passes through the center between the first battery pack mounting portion and the second battery pack mounting portion. The electric fan according to claim 5.

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