JPS62214297A - Electric fan - Google Patents

Abstract

PURPOSE:To enhance strength by erectly providing a stanchion of a metallic plate on the bottom cover of a base, and fixing the base provided with an electric motor, protective nets, and electrical appliances to this stanchion. CONSTITUTION:On the bottom cover 4, a stanchion 5 made up of a metallic plate is fitted to fix a motor 8. A base 1 and protective nets 2a, 2b which are formed by synthetic resins are fitted to the stanchion 5 respectively. Since the load of the motor 8 is applied on the stanchion 5 and is not applied on the base 1, contour parts such as protective nets, base, or the like formed by synthetic resins can be reduced in thicknesses to achieve the reduction in weight. Further, the strength of whole structure can be enhanced by the stanchion made up of the metallic plate.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an electric fan in which a protective net and a base are formed of synthetic resin.

2. Description of the Related Art Generally, in order to reduce the cost of electric fans, a base 101 and a protective net 102 are made of synthetic resin molded products, as shown in FIG.
is divided into a front base 1o1a and a rear base 101b, and the protection net 102 is also divided into a front protection net 102a and a rear protection net 1Q.
It is divided into 2b. The motor 104 with the fan 103 attached is attached to the rear protection net 102b with screws 106, the front protection net 102a and the rear protection net 1o2b are connected to each other with the screws 106, and the lower part of the protection net 102 is attached to the top of the base 101. It is attached by screws 107. In the figure, 108 is a switch section, and 1o9 is a bottom plate that connects the front base 101a and the rear base 101bl.

Problems to be Solved by the Invention The electric fan constituted by the protective net 102 and the base 101 made of synthetic resin has a motor 10.
4 installation, mutual connection of divided protection nets, protection net 10
2 and base 101, front base 101a and rear base 1
In order to connect o1b, a large number of screws must be used to connect and connect them, making the assembly work difficult. Further, the protective net 102 and the base 101 are formed thin to reduce weight, and many parts must be screwed to compensate for the lack of strength of each part. Furthermore, the motor 104 is heavy, and the rear protective net 1o2b causes creep deformation.
There were problems with the product being unstable and unsafe.

The present invention has been made in consideration of the above-mentioned conventional problems, and an object of the present invention is to provide a sufficiently reinforced, stable, and safe electric fan in which the protective net and the base are made of synthetic resin molded products.

Means for Solving the Problem In order to solve this problem, the present invention erects a support made of a metal plate on the base bottom cover, and installs an electric motor, a protection net, and electrical parts such as a switch on this support. The structure is such that the base is fixed to the base.

Function: With this configuration, the metal plate supports support the heavy electric motor and the protective net made of synthetic resin, so that no large load is applied to the protective net.

EXAMPLE Hereinafter, an example of the present invention will be described based on FIG. In the figure, 1 is a front base 1a molded from synthetic resin.
and a base consisting of a rear base 1b; 2 is a front protective net 2a and a rear protective net 2 also molded from synthetic resin;
This is a protection net consisting of b. A switch 3 is attached to the front base 1a, and a switch 3 is attached to the front base 1a and the rear base 1.
b is integrated by a metal bottom cover 4. A support column 6 made of a metal plate with bent upper and lower ends is erected on the bottom cover 4 by being attached with screws 6.

A motor 8 to which blades 7 are connected is fixed by screws 9 to a portion of the support 6 that projects upward from the base 1. The upper end of the front protection net 2a is attached to the upper end of the rear protection net 2b with a screw 10.
The lower end claw 11 is engaged with the upper end of the front base 1a. The upper end of the rear protective net 2b is connected to the upper part of the support column 5 with a screw 12, and the lower end thereof is fixed to the support column 5 with a screw 13 together with the upper part of the rear base 1b. Note that 14 in the figure is a screw that connects the front base 1a and the rear base 1b.

As described above, according to this embodiment, since the motor 8, which is a heavy object, is fixed to the support column 5, the heat dissipation of the motor 8 is improved, the efficiency of the motor 8 is improved, the number of windings can be reduced, and the manufacturing cost is reduced. Become below. Further, since the motor 8 is not fixed to the rear protection net 2b, the rigidity is sufficient as long as it is strong enough to prevent foreign matter from entering from the outside, and the shape can be simplified. Since no force is applied to the front protection net 2a from any source other than the outside, the fixing method is to use the claws 11, which simplifies assembly. Since the load of the motor 8 is not applied to the front base 1a and the rear base 1b, it is possible to mold them extremely thinly using synthetic resin. Furthermore, the motor 8 containing the windings of the current-carrying part is attached to the support 6 made of a metal plate, and the support 5 is connected to the base bottom cover 4 made of a metal plate.
Since the ground is fixed to the bottom cover 4 of the base, the internal wiring can be simplified.

As is clear from the description of the embodiments above, according to the present invention, a heavy motor is fixed to a support made of a metal plate, and main components such as a protective net, a base, and a bottom cover of the base are attached to this support. Since the outer shell parts are fixed, the load of the motor is not applied to the struts and to the outer shell parts molded from synthetic resin, making it thinner and lighter, easy to assemble, and the manufacturing varnish can be reduced by 1 liter. Effects can be obtained.

[Brief explanation of drawings]

FIG. 1 is a sectional view of an electric fan according to an embodiment of the present invention, and FIG. 2 is a sectional view of a conventional electric fan. 1...Base, 2...Protection net, 4...River/Bottom cover, 6...Strut. Name of agent: Patent attorney Toshi Nakao, 1 person, 1L
1-Kuroikuzumeki 71--Hikiki δ---Shige Figure 2

Claims (1)

[Claims] This electric fan consists of a metal plate support set upright on a metal base bottom cover, an electric motor with blades attached to the support, a protective net made of synthetic resin, and a base fixed to the base.