KR101893096B1 - Multipurpose electric fan - Google Patents

Abstract

An objective of the present invention is to provide a multipurpose electric fan having a head unit with a wide vertical angle adjustment range. According to the present invention, the multipurpose electric fan comprises: a head unit having a motor to provide torque in a forward direction or a reverse direction by external power; a blowing fan which is installed on a front of the head unit, and receives torque from the motor to rotate in the forward direction or the reverse direction; and a pole to support the head unit to position the head unit at a prescribed height from the ground. An adjustment member for adjusting a vertical angle of the head unit to adjust a discharge angle of a wind produced by the blowing fan is arranged on an upper end of an inner side of the pole. The adjustment member includes: a fixing part to fix a position of the head unit; a hinge unit to guide a vertical angle adjustment of the head unit; and a fixing unit coupled to one side of the hinge unit to fix the position of the head unit whose vertical angle is adjusted by the hinge unit.

Description

[0002] Multipurpose electric fan [0003]

[0001] The present invention relates to a multi-purpose fan, and more particularly, to a multi-purpose fan which is capable of adjusting the angle of upward and downward angles of the head, The present invention relates to a multi-purpose fan that can be moved easily by providing a handle at the top of a pillar.

In general, a fan is used as a means to relieve the heat by artificially inducing wind in the summer season. The fan is provided with a head at a right angle to the support stand provided on the stand. The head is provided with a fan at the rotation axis of the motor and the motor. The rotation of the motor causes the rotation of the motor and the blowing fan. There is a stock fan that generates air by sucking air from the circumference and discharging it forward.

In such a ground fan, the head portion was reciprocating in a predetermined angle range not exceeding the range of 180 ° to the left and right, and the wind was forwardly discharged.

However, there is a problem in that the above-mentioned ground stock fan does not transmit wind to a place outside the range of reciprocating right and left.

In order to solve such a problem, there has been disclosed a fan which can rotate 360 degrees in the lateral direction.

However, although the conventional art can rotate in the left and right direction, there is a problem that the wind can not be transmitted to the rear of the head part as the wind is discharged only in front of the head part, and the angle of the head part can be adjusted in the upward and downward directions, There was still a problem of limited range.

In addition, since the handle portion is provided on one side of the head portion, when the user grasps the handle of the fan and moves the position of the fan, the center of gravity is shifted toward the head portion due to the high load of the head portion, .

Patent Publication No. 2013-0027899 (Publication date 2013.03.18.)

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide an improved angle structure for a wing, And it is an object of the present invention to provide a multi-purpose fan capable of easily moving a position by providing a handle at the top end of a support.

According to an aspect of the present invention, there is provided a multi-purpose fan including: a head having a motor for providing a forward or reverse rotational force through an external power source; A blowing fan installed in front of the head unit and rotating in a forward or reverse direction while receiving a rotational force from the motor; And a support for supporting the head so that the head is located at a predetermined height from the ground, wherein an inner upper end of the support is coupled to the head, and the angle of discharge of wind generated through the blowing fan is adjusted, And the adjustment member includes a fixing metal for fixing the position of the head part, a hinge part for guiding the upward and downward angle adjustment of the head part, And a fixing part for fixing the position of the head part whose upper and lower angles are adjusted through the hinge part.

Wherein the blowing fan comprises: a center portion coupled to a rotation axis of the motor and rotating in a forward or reverse direction; And a plurality of blades installed at a predetermined interval along the outer circumference of the central portion, wherein as the central portion rotates in a forward direction or a reverse direction, wind is discharged forward of the center portion, or wind is discharged toward the rear of the center portion The wing portions are each provided in a warped shape in one direction and are inclined obliquely to the outer periphery of the central portion when viewed from the side of the central portion.

Wherein the fixing portion includes: a rotating metal fitting coupled to the fixing metal; a washer extending from one side of the rotating metal; a central shaft protruding outward from a central portion of the washer; a nut coupled to the outside of the central shaft; And a spring for being wound around the outside of the washer to provide a tensile force.

A lower portion of the strut is provided with a lead wire electrically connected to the head portion, and an operating portion for controlling the operation of the head portion is provided. The lead wire is connected to one side of the operating portion, And is connected to the head unit by being drawn out to one side of the hinge unit.

The uppermost part of the strut is coupled to the outside of the adjustment member and includes a handle for moving the position of the multi-purpose fan.

The present invention has the following effects.

First, since the present invention is provided with the adjustment member and the angle of the head portion is adjusted to a very wide range in the upward and downward directions, the wind can be transmitted in various directions, and the utilization thereof is excellent.

Secondly, since the wind is discharged in both directions including forward and backward directions due to the structure of the wing portion, wind is discharged not only forward but also rearward of the blowing fan, so that this function as a fan, It is possible to perform a function as an air circulator.

Thirdly, since the handle is located at the uppermost end of the strut corresponding to the center between the load of the head and the load of the operating portion, the center of gravity is not shifted to one side even when the user grasps and moves, so that the position can be stably moved .

1 shows a control member of a multi-purpose fan according to an embodiment of the present invention.
2 is a perspective view showing a fixing part of a multi-purpose electric fan according to an embodiment of the present invention.
3 is a perspective view illustrating a front surface of a blower fan of a multi-purpose fan according to an embodiment of the present invention.
4 is a perspective view illustrating a rear surface of a blower fan of a multi-purpose fan according to an embodiment of the present invention.
5 is a schematic view showing an angle adjustment mode of a multi-purpose fan according to an embodiment of the present invention.
6 is a side view of a multi-purpose fan according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

In the drawings, the same reference numerals denote the same components throughout the specification. In the drawings, the lengths and the thicknesses of layers or regions may be exaggerated for convenience. In addition, when the first component is described as being on the second component, it is preferable that the first component is located on the upper side in direct contact with the second component, And the third component is located between the second components.

Here, the terms first, second, etc. are used for describing various components and are used for the purpose of distinguishing one component from another component. However, the first component and the second component may be arbitrarily named according to the convenience of the person skilled in the art without departing from the technical idea of the present invention.

It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. For example, an element represented in singular form includes a plurality of elements unless the context clearly dictates a singular number. Also, in the specification of the present invention, the terms such as " comprises "or" having ", and the like, designate the presence of stated features, integers, steps, operations, elements, But do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

In addition, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning in the context of the related art and, unless explicitly defined in the specification of the present invention, It is not interpreted.

1 is a perspective view of a control unit of a multi-purpose fan according to an embodiment of the present invention, 2 is a perspective view illustrating a fixing unit of a multi-purpose fan according to an embodiment of the present invention, 3 is a multi- FIG. 4 is a perspective view illustrating a rear surface of a blowing fan of a multi-purpose fan according to an embodiment of the present invention, FIG. 5 is a perspective view of a multi-purpose fan according to an embodiment of the present invention, And Fig. 6 is a side view showing a multi-purpose fan according to an embodiment of the present invention.

A multi-purpose fan according to an embodiment of the present invention includes a head unit 100, a blowing fan 200, a strut 500, and an operation unit 600, .

The head unit 100 includes a motor for providing a forward or reverse rotational force through an external power source. At the center of such a motor, there is provided a rotating shaft which rotates in a forward direction or a reverse direction.

The blowing fan 200 is installed in front of the head unit 100 and rotates in a forward or reverse direction by receiving a rotational force from the motor. The blowing fan 200 may include a center part 210 and a wing part 220.

The center portion 210 is coupled to the rotation axis of the motor and rotates as the rotation axis rotates in the forward or reverse direction. The wing portion 220 is installed at a predetermined interval along the outer circumference of the center portion 210 And may be provided in plurality.

3 and 4, as the central portion 210 rotates in a forward or reverse direction, the wing portion 220 may be provided with a plurality of wings 220 for discharging wind toward the front portion of the center portion 210, And may be inclined obliquely to the outer periphery of the central portion 210 when viewed from the side of the central portion 210. [

Therefore, since the fan unit 220 of the present invention is provided with the above-described structure and wind is discharged in both directions including forward and reverse directions, wind is discharged not only forward but also rearward of the blowing fan 200, Function as an air circulator which can be used throughout the season.

At least one or more first guide ribs 221 protrude forward from the vanes 220 in order to reduce noise generated by winds discharged toward the front of the blast fan 200, .

At least one second guide rib 222 is formed on the rear surface of the wing 220 so as to reduce noise generated by the wind blown to the rear of the blowing fan 200, So as to protrude rearward.

That is, the first guide ribs 221 and the second guide ribs 222 are formed on the front and rear surfaces of the wing portion 220, respectively, so that the wind can be smoothly guided to the front or rear of the blowing fan 200 So that the noise of the wind blown from the blowing fan 200 can be reduced.

To demonstrate this, the noise dBA is measured according to the presence or absence of the formation of the first guide ribs 221 and the second guide ribs 222 and is shown in Table 1 below.

RPM Measuring instrument Presence of guide ribs Direction of rotation Measurement location (dBA) Darkness
(dBA) left side face right Average 250 RPM Inha University Instruments Guide rib oil Forward 21.0 23.0 21.3 21.7 19.5 Reverse 21.6 22.5 21.4 21.8 Guide rib Forward 21.6 24.4 22.4 22.8 Reverse 22.1 23.0 21.9 22.3

That is, as shown in Table 1, when the first guide rib 221 and the second guide rib 222 are formed in the wing portion 220, the noise dBA is measured to be lower, Accordingly, the present invention can minimize wind noise discharged from the blowing fan (200).

The pillar 500 supports the head unit 100 so that the head unit 100 is located at a predetermined height from the ground. The pillar 500 is coupled to the head unit 100 at the upper end thereof, And an adjustment member 510 for adjusting the angle of upward and downward movement of the head unit 100 so that a discharge angle of wind generated through the head unit 100 may be adjusted.

The adjustment member 510 includes a fixing bracket 520 for fixing the position of the head unit 100, a hinge unit 530 for guiding the upward and downward adjustment of the head unit 100, And a fixing unit 540 coupled to one side of the supporting unit 530 and fixing the position of the head unit 100 whose upper and lower angles are adjusted through the hinge unit 530.

5, the head unit 100 is provided to rotate upwardly and downwardly through the hinge unit 530, and the position adjusted and rotated in the upward and downward directions is fixed to the fixing unit 540 As shown in FIG.

2, the fixing unit 540 includes a rotation bracket 541 coupled to the fixing bracket 520, a washer 542 extending from one side of the rotation bracket 541, A nut 544 coupled to the outside of the center shaft 543 and a nut 544 wound around the washer 542 to provide a tensile force, And a spring 545 for applying a spring force.

Accordingly, when the angle of the head portion 100 is adjusted upward by the hinge portion 530, the frictional force between the nut 544, the washer 542 and the spring 545, and the tension of the spring 545, And when the angle is adjusted downward, the friction force between the nut 544, the washer 542 and the spring 545 and the tensile force generated when the spring 545 is wound along with the rotation of the central shaft 543 So that the position is fixed.

That is, as shown in FIG. 5, since the angle of the head part 100 can be adjusted to a wide range and the wind is discharged to the front or rear of the head part 100, You can.

The operation unit 600 includes a lead wire 610 disposed below the strut 500 and electrically connected to the head unit 100 to control the operation of the head unit 100 .

One end of the lead wire 610 is connected to one side of the operation unit 600 and the other side of the lead wire 610 is extended to one side of the hinge unit 530 while passing through the inside of the strut 500, ). ≪ / RTI >

The lead wire 610 is twisted or tangled even if the angle of the head part 100 is adjusted in the upward and downward directions by the structure and the drawing direction of the lead wire 610 connected to the head part 100 and the operating part 600 It is possible to prevent the phenomenon.

In addition, a handle 700 may be provided at the upper end of the strut 500 and coupled to the outside of the control member 510 to move the position of the multi-purpose fan of the present invention.

That is, in a general fan, since the handle is installed in the head portion, when the user grasps the handle of the fan and moves the position of the fan, the center of gravity is concentrated toward the head portion because the load of the head portion is high. 6, since the handle 700 is located at the uppermost position of the struts 500 corresponding to the center portion between the load of the head 100 and the load of the operation portion 600, when the user grasps and moves The center of gravity is not shifted to one side, so that the position can be stably moved.

100: head part 200: blowing fan
210: center portion 220: wing portion
221: first guide rib
222: second guide rib
500: supporting column 510: adjusting member
520: Fixing bracket 530: Hinge
540: Fixing portion 541:
542: Washer 543: Center axis
544: nut 545: spring
600: Operation part 610: Lead wire
700: Handle portion

Claims (5)

A head having a motor for providing a forward or reverse rotational force through an external power source; A blowing fan installed in front of the head unit and rotating in a forward or reverse direction while receiving a rotational force from the motor; And a support for supporting the head portion to be positioned at a predetermined height from the ground,
An inner side upper end of the strut is provided with an adjusting member which is coupled to the head portion and adjusts the angle of the head portion so that a discharge angle of the wind generated through the blowing fan is adjusted,
Wherein the adjusting member includes a fixing bracket for fixing the position of the head unit, a hinge unit for guiding the upward and downward angle adjustment of the head unit, and a hinge unit coupled to one side of the hinge unit, And a fixing part for fixing the position of the head part,
Wherein the fixing portion includes: a rotating metal fitting coupled to the fixing metal; a washer extending from one side of the rotating metal; a central shaft protruding outward from a central portion of the washer; a nut coupled to the outside of the central shaft; And a spring for being wound on the outside of the washer to provide a tensile force. delete delete The method according to claim 1,
A lead wire is provided at a lower portion of the strut to be electrically connected to the head portion, and an operation portion for controlling the operation of the head portion is provided,
Wherein one end of the lead wire is connected to one side of the operating portion and the other side is drawn to one side of the hinge portion and connected to the head portion while penetrating the inside of the strut. The method according to claim 1,
Wherein the control unit is coupled to an outer side of the control member and has a handle for moving the position of the multi-purpose fan.

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