KR20170085713A

KR20170085713A - Electric fan

Info

Publication number: KR20170085713A
Application number: KR1020160005183A
Authority: KR
Inventors: 김형일
Original assignee: 김형일
Priority date: 2016-01-15
Filing date: 2016-01-15
Publication date: 2017-07-25

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bidirectional fan, and more particularly, to a bidirectional fan capable of efficiently cooling a motor while allowing a single motor to be provided with blades in the forward and backward directions to send wind in both directions.
The two-way electric fan of the present invention comprises: a case; A motor provided inside the case so that a rotating shaft projects in a front-rear direction of the case; A front fan mounted on the rotating shaft protruding forward of the case; A front protective net mounted on the front of the case and surrounding the front fan; A rear fan mounted on the rotating shaft protruding rearward of the case; A rear protection net mounted on the rear of the case and surrounding the rear fan; A base for supporting the case is formed on an upper surface thereof and a plurality of switches are provided on an upper surface thereof; The cover is coupled to surround the outer circumference of the front protective net and the other end is coupled to surround the outer circumference of the rear protective net, and a plurality of through holes are formed along the outer circumference at the center. And a control unit.

Description

Two-Way Fan {ELECTRIC FAN}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bidirectional fan, and more particularly, to a bidirectional fan capable of efficiently cooling a motor while allowing a single motor to be provided with blades in the forward and backward directions to send wind in both directions.

Generally, an electric fan is an indoor cooling device having a single motor and a blowing fan installed on a rotary shaft of a motor to blow wind in one direction.

Such a fan includes a rotation function, but there is a restriction on the rotation angle of the fan, so that when installed in a large space, several fans are installed in various directions.

However, since the plurality of fans operate at the same time, there is a disadvantage in that the power consumption is large. In addition, there is a restriction of the indoor space for installing the fan at various angles.

An example of a conventional technique for solving the problem of such a fan is disclosed in Japanese Patent Application Laid-Open No. 1997-21768 (bi-directional fan).

1 is a configuration diagram showing a configuration of a conventional bidirectional fan.

As shown in FIG. 1, a conventional bidirectional fan has two rotating shafts in front and rear of a motor 100, and fans 110 are installed at both ends of the rotating shaft.

However, in order to drive the two fans 110 by using the motor 100, the two-way fan may be configured to relatively move the motor 110, 100, which causes a problem that the motor 100 is easily overheated and leads to a residual magnetic field or a fire.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a cover between a protection net and a protective net installed in both directions, So as to prevent the motor from overheating.

It is also an object of the present invention to provide a two-direction fan capable of providing a sense of beauty by enclosing the cover, the protective net, and the protective net, and selectively operating the fan installed rearward by the clutch means.

According to an aspect of the present invention, there is provided a bi-directional fan including: a case; A motor provided inside the case so that a rotating shaft projects in a front-rear direction of the case; A front fan mounted on the rotating shaft protruding forward of the case; A front protective net mounted on the front of the case and surrounding the front fan; A rear fan mounted on the rotating shaft protruding rearward of the case; A rear protection net mounted on the rear of the case and surrounding the rear fan; A base for supporting the case is formed on an upper surface thereof and a plurality of switches are provided on an upper surface thereof; The cover is coupled to surround the outer circumference of the front protective net and the other end is coupled to surround the outer circumference of the rear protective net, and a plurality of through holes are formed along the outer circumference at the center. And a control unit.

A clutch means mounted on the rotating shaft protruding rearward of the case and selectively rotating the rear fan by the switch; Further comprising:

The rotating shaft projecting rearward of the case may include a first shaft rotated by the motor; And a second shaft on which the rear fan is mounted, the clutch means comprising: a sliding member coupled to the first shaft to be slid in an axial direction while being rotated at an end of the first shaft; A fixing member having a second clutch plate fixedly coupled to the second shaft in correspondence with the first clutch plate; Lever means for sliding the sliding member in the first axis by the operation of the switch to selectively engage the first clutch plate with the second clutch plate of the fixing member; And a control unit.

According to the two-way fan of the present invention as described above, the following effects can be obtained.

First, air is supplied to the front fan and the rear fan through the through holes formed at the center of the cover, so that the air supplied through the through holes can more closely contact the case, There is an effect of preventing the motor from overheating by cooling.

Further, the front fan, the front protection net, the rear fan, and the rear protection net are integrally seen by the cover, thereby providing a new aesthetic feeling.

Secondly, by installing the clutch means, there is an effect that the rear fan can be selectively rotated as necessary.

1 is a block diagram showing a configuration of a conventional bidirectional fan.
FIG. 2 is a perspective view illustrating the overall configuration of a bi-directional fan according to an embodiment of the present invention; FIG.
3 is an exploded perspective view showing the overall configuration of a bi-directional fan according to an embodiment of the present invention;
FIG. 4 is an exploded perspective view illustrating a cover in a bi-directional fan according to an embodiment of the present invention; FIG.
5 is a cross-sectional view illustrating the configuration of a bi-directional fan according to an embodiment of the present invention.
6 is an exemplary view showing the configuration and operating relationship of the clutch means in the bidirectional fan according to the embodiment of the present invention.
7 is a comparative view comparing the presence or absence of a cover in a bidirectional fan according to an embodiment of the present invention.

2 to 7, a bidirectional fan according to an embodiment of the present invention includes a case 10, a motor 15, a front fan 40, a front protection net 45, a rear fan 50, The rear protection net 55, the base 60, the cover 70, the clutch means 80, the rotating means 91, the angle adjusting means 92 and the height adjusting means 93.

The case 10 has a built-in motor 15 to fix the motor 15.

2, 4 and 5, the case 10 fixes the front protection net 45 and the rear protection net 55, which will be described later.

The motor 15 is mounted in the case 10 such that the rotary shaft 30 protrudes forward and backward from the case 10 in FIG.

The rotary shaft 30 protruding rearward of the case 10 is connected to a first shaft 31 rotated by the motor 15 and a second shaft 32 mounted with the rear fan 50 .

The first axis 31 and the second axis 32 will be described later in detail.

The front fan (40) is mounted on the rotary shaft (30) protruding forward of the case (10).

The front fan (40) is rotated by the motor (15) to wind forward.

The front protection net 45 is mounted in front of the case 10 as shown in FIG. 5 and surrounds the front fan 40 as shown in FIGS.

The front protection net (45) serves to protect the front fan (40).

The rear fan 50 is mounted on the rotary shaft 30, that is, the second shaft 32 protruding rearward of the case 10.

The rear fan (50) is rotated by the motor (15) to blow backward.

The rear protection net 55 is mounted on the rear side of the case 10 as shown in FIG. 5 to wrap the rear fan 50 as shown in FIGS.

The rear protection net 55 serves to protect the rear fan 50.

A stand 61 for supporting the case 10, that is, the motor 15, is protruded from the upper surface of the base 60, and a plurality of switches 62 are provided in front of the upper surface.

That is, the base 60 serves to support the entire component.

The switch 62 includes a wind amount adjusting switch 62 composed of a stop, a first stage, a second stage and a third stage and a rotary switch 62 for operating the rotating means 91 for rotating the case 10 And a clutch switch 62 for operating the clutch means 80 described later.

The case 10, the motor 15, the front fan 40, the front protection net 45, the rear fan 50, the rear protection net 55 and the base 60 are formed by a known technique A detailed description thereof will be omitted.

2 and 5, one end of the cover 70 is coupled to surround the outer circumference of the front protection net 45, and the other end of the cover 70 is coupled to surround the outer circumference of the rear protection net 55.

As shown in FIG. 4, the cover 70 may be coupled to the front protection net 45 and the rear protection net 55 by bolting the cover 70, ) Or the like.

The method of coupling the cover 70 to the outer periphery of the front protective net 45 and the rear protective net 55 may be combined in various ways, unlike the present embodiment.

A through hole 71 is formed along the outermost periphery of the cover 70.

The through holes 71 supply air to the front fan 40 and the rear fan 50.

5, air is supplied to the front fan 40 and the rear fan 50 through the through holes 71 formed at the center of the cover 70. As a result, Is more in contact with the case 10 to more efficiently cool the heat of the motor 15 to prevent the motor 15 from being overheated.

7 (a), air is supplied from the front of the front fan 40 and the rear of the rear fan 50, so that the air is supplied to the case 10 The air supplied to the front fan 40 and the rear fan 50 is not efficiently cooled as shown in FIG. 7 (b) The supplied air is efficiently supplied to the case 10 because the air is supplied only through the through hole 71 formed at the outermost periphery of the cover 70 so that the heat of the motor 15 is efficiently cooled.

2, the front fan 40, the front protection net 45, the rear fan 50 and the rear protection net 55 are integrally seen by the cover 70, It is effective.

The through hole 71 may be formed in various shapes as long as it can be formed on the outermost periphery of the cover 70. [

In the cover 70, a long hole 72 is formed in the front and rear direction so that the stand 61 can be moved in the forward and backward directions through the lower end thereof to facilitate the angle adjustment by the angle adjusting means 92 described later .

In this embodiment, the cover 70 is rolled and coupled to the front protection net 45 and the rear protection net 55. As shown in FIGS. 3 and 4, at one end and the other end of the cover 70, (72).

The clutch means 80 is mounted on the rotary shaft 30 protruding rearward of the case 10 and selectively rotates the rear fan 50 by the clutch switch 62.

That is, the clutch means 80 prevents the rear fan 50 from operating or operating.

The clutch means 80 includes a sliding member 81, a fixing member 83, and lever means 85.

6, the sliding member 81 is connected to the first shaft 31, that is, the end of the rotation shaft 30 protruded rearward by the rotation of the motor 15, And is slidingly coupled in the axial direction while rotating together.

The first clutch plate 82 is formed on the sliding member 81 in the direction of the second shaft 32.

The fixing member 83 is fixedly coupled to the second shaft 32 to form a second clutch plate 84 so as to face the first clutch plate 82.

The lever member 85 is slidably moved on the first shaft 31 of the sliding member 81 by the operation of the switch 62 so as to be slid on the second clutch plate 84 of the fixing member 83 Thereby selectively engaging the first clutch plates 82 with each other.

6, the first clutch plate 82 is provided with a permanent magnet 86, and an electromagnet 87 is disposed to surround the sliding member 81 The permanent magnet 86 of the first clutch plate 82 and the pole of the electromagnet 87 are made different from each other so that the sliding member 81 is mounted on the case 10, The first clutch plate 82 is caused to fall on the second clutch plate 84 and the permanent magnet 86 of the first clutch plate 82 as shown in Fig. The first clutch plate 82 is engaged with the second clutch plate 84 while the poles of the electromagnets 87 are equal to each other so that the rotational force of the first shaft 31 is transmitted to the second shaft 32, So that the rear fan 50 mounted on the second fan is rotated.

By mounting the clutch means 80 in this manner, the rear fan 50 can be selectively rotated as necessary.

The lever means 85 is composed of the permanent magnet 86 and the electromagnet 87 so that the first clutch plate 82 slides and selectively engages with the second clutch plate 84. However, Unlike the present embodiment, the lever means 85 may be realized by a known technique.

Further, the sliding member 81 and the fixing member 83 may be interchanged.

On the other hand, the rotating means 91 rotates the case 10 right and left within a certain angle.

The angle adjusting means 92 adjusts the upward and downward directions of the wind generated by the front fan 40 and the rear fan 50.

The height adjustment means 93 adjusts the vertical height of the rear fan 50 by the case 10, that is, the front fan 40.

The rotating means 91, the angle adjusting means 92, and the height adjusting means 93 are made of known technology, and a detailed description thereof will be omitted.

Although the rotating means 91, the angle adjusting means 92 and the height adjusting means 93 are all configured in the present embodiment, they may not be configured as needed or may be constituted by only one or more of them.

The bi-directional fan according to the present invention is not limited to the above-described embodiments, but can be variously modified and embodied within the scope of the technical idea of the present invention.

10: Case 20: Motor 30:
31: first shaft 32: second shaft 40: front fan
45: front protection net 50: rear fan 55: rear protection net
60: base 61: stand 62: switch
70: cover 71: through hole 72: long hole
80: clutch means 81: sliding member 82: first clutch plate
83: Fixing member 84: Second clutch plate 85: Lever means
86: permanent magnet 87: electromagnet 91: rotating means
92: angle adjusting means 93: height adjusting means

Claims

A case 10;
A motor (15) provided inside the case (10) so that the rotary shaft (30) protrudes in the front and rear direction of the case (10);
A front fan (40) mounted on the rotary shaft (30) protruding forward of the case (10);
A front protection net 45 mounted in front of the case 10 to surround the front fan 40;
A rear fan (50) mounted on the rotary shaft (30) protruding rearward of the case (10);
A rear protection net 55 mounted on the rear of the case 10 to surround the rear fan 50;
A base 60 protruding from the top surface of the case 10 for supporting the case 10 and having a plurality of switches 62 on an upper surface thereof;
And the other end is coupled to surround the outer circumference of the rear protection net 55 and has a plurality of through holes 71 formed along the outer circumference at the center thereof, ); Lt; RTI ID = 0.0 > 1, < / RTI >

The method according to claim 1,
A clutch means (80) mounted on the rotary shaft (30) protruding rearward of the case (10) and selectively rotating the rear fan (50) by the switch (62); Further comprising a second fan.

The method of claim 2,
A rotating shaft (30) projecting rearward of the case (10)
A first shaft (31) rotated by the motor (15);
And a second shaft 32 on which the rear fan 50 is mounted,
The clutch means (80)
A sliding member 81 coupled to the first shaft 31 so as to be slid in an axial direction while being rotated at an end of the first shaft 31 and having a first clutch plate 82 in the direction of the second shaft 32;
A fixing member 83 having a second clutch plate 84 fixedly coupled to the second shaft 32 so as to correspond to the first clutch plate 82;
The sliding member 81 is slid on the first shaft 31 by the operation of the switch 62 so that the second clutch plate 84 of the fixing member 83 is engaged with the first clutch plate 82 A lever means 85 for selectively engaging the lever means 85; Wherein the fan is a fan.