JP2905675B2 - Fan - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fan capable of reducing a packing volume by supporting a support having a fan, a fan motor and the like in a detachable manner on a base.

[0002]

2. Description of the Related Art A conventional fan of this type has a structure in which a column can be removed from a base for the purpose of reducing the packing volume. A conventional electric fan is configured as shown in FIGS. 8 to 10. In FIGS. 8 and 9, the electric fan 1 includes a head 1 </ b> A and a pillar 1 supporting the head 1 </ b> A.
B, and a base 1C that stably supports the support 1B in a detachable manner.

The head 1A is mounted on a shaft of a fan motor 3 for driving the fan 2, and a motor cover 4 for protecting the fan motor 3 is provided around the fan motor 3. A spinner 5 for connecting and fixing the fan 2 is provided on a shaft portion of the fan motor 3 via a motor cover 4, and a fan guard 6 surrounding the fan 2 is provided.

The support 1B has a neckpiece 7 disposed below the motor cover 4, a pole 8 connected to a lower portion of the neckpiece 7, and a connection between the neckpiece 7 and the pole 8 at the connection portion. The height of the head 2 is adjusted by adjusting the elevation angle of the fan 2 and connected to a column 9 that supports a pole 8 so as to be able to move up and down. A contact 11A of a connector 11 for supplying electricity to the fan motor 3 is provided on a lower surface of the unit 10.

The base portion 1C has a base 13 having a fixing portion 12 for supporting the support portion 1B, and is electrically connected to the fixing portion 12 so as to face the contact 11A of the connector 11. Contact 11B of the connector 11 for
An operation unit 14 for power on / off, air volume adjustment, and the like is provided on the base 13, and a control circuit 15 for controlling the operation of the fan motor 3 based on the operation of the operation unit 14 is controlled by the operation unit 14. And a power supply cord 16 for supplying power to the control circuit 15 is connected thereto.

[0006] A commercial power supply (AC power supply) is connected to the control circuit 15 via a power cord 16.
The operation unit 14 and the fan motor 3 are connected to each other.

The electric fan constructed as described above has a
Since the support portion 1B is detachable from C, the power supply to the fan motor 3 is performed when the mounting portion 10 is mounted on the fixed portion 12 and the contact 11A of the connector 11 and the contact 11B are connected. 3 can be supplied, and when the main power of the electric fan 1 is turned on with the power cord 16 plugged into an outlet (not shown), the mounting portion 10 is removed from the fixing portion 12. In this case, the power sent from the control circuit 15 to the fan motor 3 is cut off by disconnecting the contact 11A and the contact 11B of the connector 11, but the power is supplied to the contact 11B of the connector 11. Therefore, the connector 11
When a human body comes into contact with the contact 11B, there is a risk of electric shock.

For this purpose, in the electric fan constructed as shown in FIG.
, A power cord 16 is connected to the control circuit 15, and a fixing portion 12 for supporting the support 1B is provided on the base 13.

The electric fan constructed as described above has a mounting portion 1
By disposing the operation unit 14 and the control circuit 15 at 0 and connecting a power cord 16 to the control circuit 15,
The base 1C simply supports the support 1B stably, and can be used only by the support 1B by plugging the power cord 16 into an outlet (not shown). To eliminate the fear of

[0010]

However, in the electric fan constructed as described above, the operating section and the control circuit 15 are provided in the mounting section 10 and the power cord 16 is connected to the control circuit 15. Has eliminated the risk of electric shock to the human body.
Is used only to stably support and fix the pedestal. When the pedestal 1B is used in an unstable state where the support 1B is removed from the fixing portion 18 of the base 1C, there is a danger of injury due to careless use. There was a problem.

The electric fan of the present invention solves the above-mentioned problems, and can prevent the risk of electric shock to the human body. In addition, the electric fan should be used in an unstable state where the support is removed from the base. It is an object of the present invention to provide a fan which can prevent the risk of injury due to careless use beforehand.

[0012]

To achieve the above object, a fan according to the present invention comprises a support having a fan and a fan motor for driving the fan, and a base for detachably supporting the support. in fan that includes a power supply connection means for connecting the power supply to the fan motor, the power connections hand
A switch for ON · OFF the connection between the fan motor and the power source by stage, the ON · OFF of the switch ON when the strut is attached to the base portion, the strut is the base portion to OFF when it is remove from
It is characterized by comprising an operation unit .

[0013]

[Action] in the above configuration, the switch is turned OFF when you removed base portion or et struts, contact between the fan motor and the power source
By disconnecting the connection in the switch, it is possible to prevent the possibility of the human body electric shock, yet retrieved from the base portion
The Disconnect was strut can not be used in an unstable state, it is possible to prevent the risk of injury due inadvertent use in advance.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a fan according to the present invention will be described below with reference to FIGS. The same parts of the present invention and the conventional example are denoted by the same reference numerals, and description thereof will be omitted.

A first embodiment of a fan according to the present invention is constructed as shown in FIGS. 1 to 4. In FIGS. 1 to 3, an operation section 14 and a control circuit 15 are provided on a base 13. In addition, in the configuration of the conventional fan in which the power cord 16 is connected to the control circuit 15, a concave portion 17 is provided on the side of the fixed portion 12 on the side of the operation portion 14, and the power supply (commercial power) is turned on / off in the concave portion 17. A power switch 18 for turning off is provided,
A convex portion 19 for turning on / off the power switch 18 is provided on a side surface of the mounting portion 10 so as to face the concave portion 17;
The contact 11B of the connector 11 is disposed above the recess 17 and the contact 11A of the connector 11 is disposed on the mounting portion 10 so as to face the contact 11B of the connector 11.

In FIG. 4, a commercial power supply is connected to a control circuit 15 via a power switch 18 and a power cord 16, and the control circuit 15 is connected to an operation unit 14 and a fan motor 3 respectively. .

In the electric fan constructed as in the first embodiment, the power switch 18 is turned on when the projection 19 of the support 1B is mounted on the recess 17 of the base 1C, and the power switch 18 is turned on. Then, the power is turned on, and the power is not turned on unless the support 1B is attached to the base 1C, whereby the support 1B is removed from the base 1C and the contact 11B of the connector 11 is inadvertently connected to the contact 11B. There is no danger of electric shock even if a human body comes into contact, and power is not turned on unless the support 1B is attached to the base 1C, and the support 1B is removed from the support 1C. The state cannot be used, and the danger such as injury due to careless use can be prevented beforehand.

A second embodiment of the electric fan according to the present invention is constructed as shown in FIGS. 5 to 7. In FIGS. 5 to 7, an operating section 14 and a control circuit 15 are provided on a support 9. In addition, in the configuration of the conventional fan in which the power supply cord 16 is connected to the control circuit 15, a convex portion 19 is provided on the side of the operating portion 14 on the side surface of the fixing portion 12, and a concave portion is formed on a side surface of the mounting portion 10 facing the convex portion 19. A power switch 18 for turning on / off the power at the convex portion 19 is provided in the concave portion 17.

In the electric fan constructed as in the second embodiment, the power switch 18 is turned on when the projection 19 of the base 1C is mounted on the recess 17 of the support 1B, and the power switch 18 is turned on. Then, the power is turned on, and the power is not turned on unless the support 1B is attached to the base 1C. Thus, the risk of electric shock to the human body can be prevented, and the support 1B is mounted on the base 1C. If not installed, power supply is O
Therefore, the unstable state in which the support 1B is removed from the base 1C cannot be used, and the risk of injury due to careless use can be prevented beforehand.

[0020]

Since fan of the present invention exhibits a structure as described above, switch when you removed base portion or al struts
Turns off and the connection between the fan motor and the power supply is
By separating in Ji, it is possible to prevent the possibility of the human body electric shock, yet Do mounting struts in the base portion
Without power to the fan motor as long as There is connected, the struts removed from the base unit can not be used in an unstable state, preventing the risk of injury due inadvertent use in advance can do.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a main part of a fan according to a first embodiment of the present invention, in which a support is removed from a base.

FIG. 2 is a cross-sectional view of a main part showing a state in which a support is mounted on a base of the fan according to the first embodiment of the present invention.

FIG. 3 is a cross-sectional view of a main part of the electric fan according to the first embodiment of the present invention, in which a support is mounted on a base.

FIG. 4 is a schematic block diagram of a first embodiment of the electric fan of the present invention.

FIG. 5 is a perspective view showing a main part of a fan according to a second embodiment of the present invention, in which a support is removed from a base.

FIG. 6 is a sectional view of a main part showing a state in which a support is mounted on a base of a second embodiment of the electric fan of the present invention.

FIG. 7 is a cross-sectional view of a main part showing a state in which a support is mounted on a base of a second embodiment of the electric fan of the present invention.

FIG. 8 is a main part perspective view showing a state in which a support is removed from a base of a second conventional fan.

FIG. 9 is a schematic block diagram of a conventional fan.

FIG. 10 is a perspective view of an essential part showing a state in which a support is removed from a base of a second conventional fan.

[Explanation of symbols]

 1B Support 1C Base 2 Fan 3 Fan motor 15 Control circuit 18 Power switch

Claims (1)

(57) [Claims] An electric fan comprising: a support having a fan and a fan motor for driving the fan; a base for detachably supporting the support; and power supply connecting means for connecting power to the fan motor. in, a switch to ON · OFF the connection between the fan motor and the power supply by the power supply connection means, ON · of the switch
Turns ON when the OFF said strut attached to said base portion, a fan, characterized by comprising an operation unit for OFF when the strut is remove from the base portion.