JP3447799B2 - Portable blower - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable blower device having a fan motor with an impeller built therein and driven by an output from a solar cell.

[0002]

2. Description of the Related Art Conventionally, a blower device requires a dedicated power supply facility (for example, a DC power supply device) connected to a commercial AC power source in order to drive a fan motor to rotate, and a power supply device is installed in a set incorporating the blower device. The lead wire from the power supply unit was routed to the installation position of the blower such as a built-in fan or a wall.

[0003]

In such a conventional air blower, not only a power supply having an AC / DC converting function is required, but also the air blower is inevitably installed at or near a place where a commercial AC power supply is provided. I could only place it. Therefore, if there is no power supply near the place where the user wants to use the air blower, the air blower cannot be used, and depending on the place, the air blower itself has no value. In particular,
When an individual uses an organic solvent-based adhesive to make a plastic model, or when soldering to make an electric circuit, local ventilation is required. Could not be used simply, and it was impossible to actually perform the above-mentioned ventilation outdoors.

The present invention has been made in view of the above problems of the prior art, and the purpose thereof is that it can be used without any restrictions in place,
Moreover, it is to provide a portable air blower capable of saving energy.

[0005]

To achieve the above object, a portable air blower according to the present invention comprises a housing having an intake port and an exhaust port, a fan motor supported in the housing, and a fan motor. A rotating impeller, a lid body pivotally supported by the housing to openably and closably close an intake port or an exhaust port, and a solar cell attached to a surface exposed when the lid body is opened. The fan motor is driven by.

In this case, it is preferable that the lid is supported at the lower edge of the housing so as to close the intake port, and the lid also serves as a stand of the housing when the intake port is opened. You may make it arrange | position the wind direction deflection blade apparatus whose angle can be adjusted.

Further, the battery case may be attached to the housing, and the primary battery for driving the fan motor may be housed in the battery case.

Further, the secondary battery may be housed in the battery case attached to the housing, and either or both of the output of the solar cell and the output of the secondary battery may be supplied to the fan motor. .

[0009]

This portable air blower has a structure in which a solar cell is attached to the exposed surface of the lid attached to the housing, and the fan motor is driven by the output from the solar cell. It does not require a dedicated power source and can be used in any place where the user wants to use it. Also, if the lid is supported on the lower edge of the housing so that it also serves as a stand, the housing can be stably supported when air is used, and if a wind deflector is installed on the exhaust port side of the housing, the desired direction can be obtained. There is an advantage that the air can be concentrated on. Further, in the configuration in which the primary battery is housed in the battery case attached to the housing, the fan motor can be driven by switching the output of the solar battery and the primary battery, and the fan can be blown day or night. Further, if a secondary battery is used in addition to the primary battery, there is an advantage that the secondary battery can be charged to minimize the consumption of battery power in addition to the above.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on the illustrated embodiments.

1 to 3 show a first embodiment of a portable air blower according to the present invention, FIG. 1 is an overall perspective view, FIG. 2 is a sectional view of the portable air blower of FIG. 1, and FIG. FIG. 2 shows a circuit diagram of the portable blower of FIG. 1.

In FIGS. 1 and 2, a rectangular box-shaped housing 1 has a circular intake port 2 formed on one surface and a circular exhaust port 3 formed on the other surface. It is set up. A substantially bowl-shaped rotor 5 rotated by a fan motor 4 is provided with a plurality of impellers 6 on the outer circumference of the peripheral wall thereof at intervals in the circumferential direction, and a shaft 7 is insert-molded or press-fitted in the central portion of the rotor 5. Has been fixed. A rotor magnet 9 is fixed to the inner peripheral portion of the peripheral wall of the rotor 5 via an annular yoke 8 and faces the stator 10 with a slight gap in the radial direction.

The stator 10 is constructed by winding a coil 12 around a stator core 11, and a cylindrical support cylinder of a base 14 which is arranged at a substantially center of the exhaust port 3 of the housing 1 via a radial support cylinder 13. It is externally fitted to 15. Foundation 14
Wiring pins protruding from the stator 10 are soldered to the annular circuit board 16 fixed to the coil 12, and the coil 12 is electrically connected to the circuit board 16.

An annular magnetic ring 17 is fixed to the surface of the circuit board 16 on the side of the stator 10 over the entire circumference of the circuit board 16. The magnetic ring 17 is the rotor magnet 9
Of the circuit board 1 via the magnetic ring 17 that is fixed to the exhaust port 3 side of the circuit board 1 by the magnetic attraction of the rotor magnet 9.
Attracted to 6. Therefore, the rotor 5 is attracted to the magnetic ring 17 side over the entire circumference, and so-called thrust force acts, so that the rigidity of the fan motor 14 against rattling at the time of rotation increases, and stable rotation of the rotor 5 and the impeller 6 is achieved. can get.

A cylindrical sleeve bearing 18 is fitted inside the cylindrical support cylinder 15 from the exhaust port 3 side, and its position is regulated by a retainer 19 at the tip of the support cylinder 13. The shaft 7 is inserted into the sleeve bearing 18 from the intake port 2 side, the central boss portion 20 of the rotor 5 is abuttable with the retaining member 19, and the retaining ring 2 is attached to the end portion of the shaft 7.
1 is fitted, and the retaining member 19 and the retaining ring 21 prevent the shaft 7 and the sleeve bearing 18 from retaining.

The sleeve bearing 1 is provided on the outer peripheral surface of the shaft 7.
An annular groove 22 for reducing the contact area and improving the starting characteristic is formed at the center of the portion corresponding to 8. The annular groove 22 can reduce the contact area between the sleeve bearing 18 and the surface of the shaft 7 without impairing the strength of the shaft 7.

At the exhaust port 3 of the housing 1, an impeller 6 is provided.
The wind direction deflecting blade device 23 is attached to adjust the exhaust direction when the wind sucked from the intake port 2 by the rotation of the exhaust port is discharged from the exhaust port 3. The wind direction deflecting blade device 23 is configured to rotatably support a plurality of lateral deflecting blades 25 in a frame body 24. In the frame body 24, one end portion of each deflecting blade 25 is vertically arranged. A connecting rod 26 for connecting to each other is arranged, and the respective deflecting vanes 25 are integrated by the connecting rod 26. When it is desired to change the direction of the deflecting blades 25, the direction of all the deflecting blades 25 is changed at the same time only by moving the connecting rod 26 up and down or changing the direction of some of the deflecting blades 25.

A lid 27 is supported on the lower edge of the intake port 2 of the housing 1 so as to be openable and closable with respect to the intake port 2. A solar cell 28 is attached to the surface of the lid 27, that is, the surface exposed at the time of opening. This solar cell 28 is configured by arranging a plurality of, for example, amorphous solar cells that generate electric power by irradiation of sunlight or the like in a plane, and each solar cell is connected in series, in parallel, or in parallel so as to obtain a desired power generation output. Connected with these combinations. This solar cell 2
Reference numeral 8 is wired so as to drive the fan motor 4 by the power generation output by irradiation from the sun or the like.

Further, on the surface of the lid 27, convex portions 29 project at four corners thereof, and the housing 1 is provided with concave portions 30 into which the convex portions 29 fit when the lid 27 is closed. As a result, the lid 27 is reliably held in a state in which the intake port 2 is closed.

When the lid 27 is opened, the lid 27 itself also serves as the stand of the housing 1 as shown in FIG. 1, so that the housing 1 is upright in a stable state.

A box-shaped battery case 31 is attached to the upper part of the housing 1, a primary battery 32 such as a dry battery is housed in the battery case 31, and the fan motor 4 is driven by the output from the primary battery 32. You can also

Here, the power generation output from the solar cell 28,
The fan motor 4 can be driven by any method of using the output from the primary battery 32, but which output is to be used can be selected by the changeover switch 33 provided on the side surface of the battery case 31. it can.

Explaining in more detail with reference to FIG. 3, the solar cell 28 and the primary battery 32 are connected in parallel to a motor drive circuit 34 via a changeover switch 33, and the changeover switch 33 is connected to the solar cell 28 side (solid line). , The output from the solar cell 28 is output to the motor drive circuit 3
4 to drive the fan motor 4, while the changeover switch 33 is switched to the primary battery 32 side (shown by the broken line), the output from the primary battery 32 is supplied to the motor drive circuit 34. , The fan motor 4 can be driven. When the fan motor 4 itself is not driven, the changeover switch 33 may be set to the solar cell 28 side, the lid 27 may be closed, and the light may be blocked. Alternatively, the changeover switch 33 is a three-point changeover type, and the solar battery 28 and the primary battery 32 are simultaneously driven by the motor drive circuit 34.
You may make it form the mode isolate | separated from.

FIG. 4 is a circuit diagram showing a second embodiment of the portable air blower according to the present invention.

In this embodiment, the secondary battery 35 is housed in the battery case 31 of the first embodiment, and the fan motor 4 is driven by the output from the secondary battery 35.

That is, the series circuit of the solar cell 28 for generating electric power by irradiation of sunlight and the backflow prevention diode 36 is a secondary battery 3 such as a nickel-cadmium battery.
5 is connected in parallel, and this parallel circuit is turned on / off switch 3
It is connected to the motor drive circuit 34 via 7. The backflow prevention diode 36 prevents the output from the secondary battery 35 from flowing back to the solar cell 28 side.

Then, when the switch 37 is turned on, the irradiation of light from the sun or the like is strong, and the fan motor 4 is driven by the solar cell 28.
When the generated power more than the power required to drive the fan motor 4 is output by the output of the solar cell 28.
While driving, the surplus power is supplied to the secondary battery 35 to charge the secondary battery 35. In addition, the solar power is not output from the solar cell 28 to drive the fan motor 4 at night when the solar radiation is weakened. The output from 35 is supplied to the motor drive circuit 34, and the fan motor 4 is driven.

On the other hand, when the switch 37 is turned off, the fan motor 4 is stopped, and at this time, the power output of the solar cell 28 is exclusively used for charging the secondary battery 35. Secondary battery 3
It is also preferable to incorporate a charge / discharge control circuit for preventing overcharging and overdischarging of No. 5 and avoiding a so-called memory phenomenon.

Although the embodiment of the portable air blower according to the present invention has been described above, the present invention is not limited to such an embodiment, and various modifications and corrections can be made without departing from the scope of the invention. is there. For example, in the fan motor of this embodiment, the bearing is a sleeve bearing, but the bearing is not limited to this, and a ball bearing or the like can be freely selected.

[0030]

As described above, according to the present invention, the solar cell is attached to the exposed surface of the lid attached to the housing, and the fan motor is driven by the output from the solar cell. It does not require a dedicated power source, and can be conveniently used at any place the user wants to use. Further, the lid also serves as a stand of the housing, and stably supports the housing when using ventilation. Further, the wind direction can be changed to a desired direction by the wind direction deflecting blade device provided on the exhaust port side of the housing. Further, when the primary battery is housed in the battery case attached to the housing, the output of the solar battery and the primary battery can be switched to drive the fan motor, so that it can be used day or night. On the other hand, if a secondary battery is used instead of the primary battery, the secondary battery can be charged and the consumption of the battery power can be minimized in addition to driving the fan motor.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a first embodiment of a portable air blower according to the present invention.

FIG. 2 is a cross-sectional view of the portable blower of FIG.

FIG. 3 is a circuit diagram of the portable blower of FIG.

FIG. 4 is a circuit diagram of a second embodiment of the portable air blower according to the present invention.

[Explanation of symbols]

1 housing 2 intake 3 exhaust port 4 fan motor 6 impeller 23 Wind deflector 27 Lid 28 solar cells 31 battery case 32 primary battery 35 secondary battery

Claims (5)

(57) [Claims] 1. A housing having an intake port and an exhaust port, a fan motor supported in the housing, an impeller rotated by the fan motor, and an opening or closing of the intake port or the exhaust port pivotally supported by the housing. A portable air blower comprising: a lid body that freely closes; and a solar cell attached to a surface exposed when the lid body is opened, wherein the fan motor is driven by a power generation output of the solar cell. . 2. The lid is supported by a lower edge of the housing so as to close the intake port, and the lid also serves as a stand of the housing when the intake port is opened. 1. The portable air blower according to 1. 3. The portable air blower according to claim 1, wherein an angle-adjustable wind direction deflecting blade device is provided on the exhaust port side of the housing. 4. The portable blower according to claim 1, wherein a battery case is attached to the housing, and the battery case houses a primary battery for driving a fan motor. 5. A battery case is attached to the housing, a secondary battery charged by the output of the solar cell is housed in the battery case, and the output of the solar cell and the secondary battery are The portable blower according to claim 1, wherein either or both of the output and the output are supplied to the fan motor.