KR20160066884A - An electric fan - Google Patents

An electric fan Download PDF

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Publication number
KR20160066884A
KR20160066884A KR1020140172246A KR20140172246A KR20160066884A KR 20160066884 A KR20160066884 A KR 20160066884A KR 1020140172246 A KR1020140172246 A KR 1020140172246A KR 20140172246 A KR20140172246 A KR 20140172246A KR 20160066884 A KR20160066884 A KR 20160066884A
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KR
South Korea
Prior art keywords
head assembly
rotary actuator
angle
power
neck
Prior art date
Application number
KR1020140172246A
Other languages
Korean (ko)
Inventor
차지석
김광일
Original Assignee
차지석
김광일
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 차지석, 김광일 filed Critical 차지석
Priority to KR1020140172246A priority Critical patent/KR20160066884A/en
Publication of KR20160066884A publication Critical patent/KR20160066884A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/10—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provisions for automatically changing direction of output air

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Provided is an electric fan capable of controlling the horizontal rotation angle and the horizontal rotation speed, comprising: a supporting pillar standing on a base; a vertical angle control body installed on the top end unit of the supporting pillar to include a neck; a head assembly installed on the top of the vertical angle control body by the medium of a supporting axis which is installed in the neck; a rotation actuator to transfer power to the supporting axis by being installed on the head assembly and to rotate the head assembly a full 360 degrees; a power transfer body to connect a power axis of the rotation actuator and the supporting axis and to transfer power; and a means to prevent a wire from being twisted by being installed in an installation place in the neck for the supporting axis to penetrate and to be installed. The present invention is to provide an electric fan capable of controlling the horizontal rotation angle and the horizontal rotation speed, which can extend the rotation angle of the head assembly to 360 degrees, control the rotation angle and the rotation speed in a rotation angle extended to 360 degrees, meet the requirements of a user, reduce wasted energy, and control the rotation angle and the rotation speed of the head assembly with a simple structure.

Description

{AN ELECTRIC FAN} which can control the horizontal turning angle and the horizontal turning speed.

The present invention relates to an electric fan, and more particularly, to an electric fan capable of extending a turning angle of a head assembly to a 360 ° range, a horizontal line turning angle capable of adjusting a turning angle and a turning speed in a 360 °- And a fan capable of adjusting the horizontal rotation speed.

As is known, a fan is used to artificially generate wind. Such an electric fan can be largely classified into a mounting type using a medallion on a wall or a ceiling depending on an installation type, and a stand type using a floor.

FIG. 1 is a perspective view of a conventional stand-type fan, and FIG. 2 is a cross-sectional view of the fan motor in FIG. 1. FIG.

1 and 2, a conventional stand type fan 101 includes a base 110, support pillars 120 standing upright on a region of the upper portion of the base 110, A head assembly 140 vertically pivotally mounted on an upper portion of the upper and lower angle adjuster 130 and a left and right pivoting device 160 for pivoting the head assembly 140 left and right, .

The base 110 has a bottom plate (not shown) in contact with the mounting surface and an upper plate 113 covering the top of the bottom plate (not shown). In the front region of the top plate 113, An air volume adjusting button 117 for adjusting the rotation speed of the wing 141, a time setting knob 115 for adjusting the rotation time of the air blowing wing 141, A knob 119 is provided. A control unit (not shown) for controlling the driving of the air blades 141 is accommodated in the base 110 according to the operation of the air volume control button 117 and the time setting knob 115.

The supporting column 120 includes a column main body 121 which is integrally formed in an upper portion of the base 110 and is vertically slidable in and out of the column main body 121, A height adjustment column 123 in which the assembly 140 is supported by the upper and lower angle adjuster 130 and a height adjuster 123 for adjusting the height of the head assembly 140 coupled to the height adjustment column 123, And a height adjusting unit 125 for adjusting the height of the sliding contact of the column 123.

The vertical angle adjuster 130 includes a neck holder 131 coupled to the upper end of the support column 120 and a neck holder 131 supporting the lower portion of the head assembly 140, 133). An axial hole is formed in the upper portion of the neck holder 131 and has a pivot axis in the transverse direction with respect to the axis of the support pillar 120. An axial hole corresponding to the axial hole is formed in the lower portion of the neck 135 . A shaft receiving portion 138 having an axis parallel to the axis of the support column 120 is formed on the neck 135.

The head assembly 140 includes a blowing fan 141 for blowing wind by rotational driving and a blowing motor 143 for rotating the fan blades 141 supported by the upper portion of the vertical angle adjuster 130, A circular safety net 145 surrounding the air bladder 141 and a motor casing 147 surrounding the air blowing motor 143 and the left and right pivoting device 160. The head assembly 140 is configured such that a support shaft 151 provided in a region below the motor casing 147 of the blowing motor 143 is rotatably received in the shaft receiving portion 138 of the vertical angle adjusting member 130 Thereby being coupled to the upper portion of the support column 120.

The left and right pivoting device 160 includes a driving gear 161 provided at the rear end of the rotational shaft 142 of the blowing motor 143 and a rotational axis extending in the transverse direction with respect to the rotational axis of the driving gear 161, A driven gear 162 which is engaged and disengaged with the driving gear 161 in accordance with the operation of the knob 119; A rotary gear 166 having an eccentric shaft 165 that rotates in engagement with the lower portion of the driven gear 162 at a lower portion of the gear casing 168 and a rotary gear 166 at both ends, The eccentric shaft of the gear 166 and the supporting shaft 151 of the lower portion of the air blowing motor 143 are rotatably connected to each other so that the head assembly 140 is rotated left and right during the meshing rotation of the driven gear 161 and the driven- And a connecting rod 163 for connecting the connecting rod 163.

However, in the conventional stand-type fan 101, when horizontally rotating the head assembly 140 by the left-right rotation device 150, a horizontal line is rotated at a limited angle of 120 ° to 180 °, There is a problem that the time required for the head assembly 140 to rotate horizontally is long and the wind is supplied to an unnecessary area where there is no human body to be used by one or two users. This problem, that is, the problem that the head assembly 140 performs only the left and right turning movement at a certain angle, can not be driven outside a predetermined turning angle range regardless of the number of users gathered around the fan, There is a problem that the amount of air is wasted and the energy is wasted accompanied by unnecessary turning operation.

In addition, since the conventional electric fan 101, which horizontally rotates at a limited angle of 120 ° to 180 °, can not provide wind in an area exceeding 180 °, it is necessary to use at least two fans There is a problem that can not be solved.

In addition, the conventional stand type fan 101 has a problem that the head assembly 140 can not meet various users' needs according to the situation as the head assembly 140 is rotated at a predetermined rotation speed as well as a predetermined turning angle.

Accordingly, the present invention has been made to solve the general problems of the conventional stand-type fan,

The object of the present invention is to extend the turning angle of the head assembly to a 360 ° range and, in other words, to control the turning angle and turning speed in the turning angle range extended by 360 °, And to provide a fan capable of adjusting the horizontal line turning angle and the horizontal line turning speed, which can be satisfied and reduce unnecessary energy wastage.

Another problem to be solved by the present invention is to provide an electric fan which can control the turning angle and the turning speed of the head assembly with a simple structure.

As a concrete means of the present invention for solving the above-mentioned problems,

And a head assembly mounted on an upper portion of the upper and lower angle adjusting body through a support shaft installed on the neck, the upper and lower angle adjusting members being provided at upper ends of the support pillars, ,

A rotary actuator for transmitting power to the support shaft in a state where the head assembly is installed and rotating the head assembly in a 360 ° range;

A power transmission body connecting the power shaft of the rotary actuator and the support shaft to transmit power; And

And an electric fan provided in an installation space provided on the neck so as to allow the support shaft to be inserted therethrough so as to prevent twisting of the electric wire. The electric fan is capable of adjusting the turning angle and the turning speed of the head assembly.

As a preferred embodiment, a servo motor is applied to the rotary actuator, and a hollow slip ring in which the power shaft of the rotary actuator is inserted through the hollow is applied, and the power transmission body is applied to a gear assembly or belt And the base may be provided with a signal input unit for operating the rotary actuator.

According to another specific means of the present invention for solving the above-mentioned problems,

And a head assembly installed on an upper portion of the upper and lower angle adjusting member, wherein the upper and lower angle adjusting members are provided on an upper end of the supporting column,

A rotation actuator for rotating the head assembly in a 360 ° range by being axially coupled to the head assembly in a state where the power shaft is installed in an installation space provided on a neck of the vertical angle adjuster; And

And an electric fan provided in the installation space of the neck so that the power shaft of the rotary actuator is penetrated to prevent twisting of the electric wire. The electric fan is capable of adjusting the turning angle and the turning speed of the head assembly.

As a preferred embodiment, a servo motor is applied to the rotary actuator, and the wire twist preventing means is a hollow slip ring in which the power shaft of the rotary actuator is inserted through the hollow, and the rotary actuator is operated It is possible to provide a signal input unit for performing the above operation.

As described above, the fan according to the present invention can be realized by simply combining the server motor applied with the rotary actuator and the hollow slip ring, which is the power transmission member and the wire twisting preventing means, to rotate the head assembly to the swing angle range extended by 360 degrees, It is possible to rotate the head assembly at a desired angle by manipulating the angle and to adjust the swing speed of the head assembly so that it is possible to satisfy various demands of the user and to reduce unnecessary energy waste.

1 is a perspective view of a conventional stand type fan.
Fig. 2 is a cross-sectional view of the blowing motor region in Fig. 1; Fig.
3 is a schematic view for explaining a fan according to the first embodiment of the present invention.
4 is a cross-sectional view for explaining a hollow slip ring as a wire twisting preventing means applied to a fan according to a first embodiment of the present invention.
5 is a block diagram for explaining an operating state of the fan according to the first embodiment of the present invention.
6 is a schematic view for explaining a fan according to a second embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

≪ Embodiment 1 >

3, an electric fan 1 according to a first embodiment of the present invention includes a rotary actuator 2, a power transmitting body 3, and a wire twisting preventing means 4. As shown in Fig.

1 and 2, the fan 1 to which the first embodiment of the present invention is applied includes a base 110, a support column 120, and a vertical angle adjuster 130 And a head assembly 140 mounted on the upper and lower angle adjuster 130 via a support shaft 151 as an intermediate member.

The rotary actuator (2) is installed in the head assembly (140). The rotary actuator 140 includes a servomotor (hereinafter, the rotary actuator and a servomotor are given the same reference numerals). Preferably, the rotary actuator 140 is disposed inside the motor casing 147 of the head assembly 140, And is disposed at a position close to the support shaft 151 in the inner space of the motor casing 147. At this time, the servomotor 2, which is an application example of the rotary actuator, includes a control unit which is a main board for receiving a signal for power and servo operation and controlling the motor, and a motor (power shaft 21) controlled by the control unit. ), A speed reducer unit from the motor to an external drawer, and a variable resistor for reading the angle value of the servo horn drawn out from the motor. Accordingly, the servo motor 2, which is applied to the rotary actuator, can rotate the power shaft 21 in the forward, reverse, or desired angle, and also adjust the rotational speed.

The power transmission unit 3 connects the power shaft 21 of the servo motor 2 and the support shaft 151 to transmit power. The power transmission body 3 includes a driven gear 31 axially coupled to a gear shaft assembly such as a shaft and a driven shaft 31 coupled to the power shaft 21 of the servo motor 2, A gear assembly 3a including a drive gear 32 for transmitting rotational force, or a belt, for example, a belt provided on a pulley axially coupled to a power shaft of the support shaft and the rotary actuator (Not shown in FIG. When the support shaft 151 and the power shaft 21 are parallel to each other, a parallel shaft gear such as a spur gear may be used. When the support shaft 151 and the power shaft 21 intersect with each other, A shaft gear such as a bevel gear may be used and a connecting gear 33 may be further provided between the driven gear 31 and the driving gear 32. [ In addition, it is preferable to apply a timing belt (the timing pulley is axially coupled to the support shaft and the power shaft) for transmitting the correct rotational force to the belt.

The wire twist preventing means 4 is installed on the neck 135 and the support shaft 151 is inserted through the wire 135. A plurality of wire terminals are formed on the wire slip prevention means 4 as shown in FIG. 4, and a hollow slip ring (hereinafter referred to as a wire slip prevention means and a hollow slip ring) A wire assembly 41 connected to the first wire 42 for signal / power transmission, a plurality of grooves formed in the wire assembly 41 to be in contact with the wire terminal, A known hollow slip ring 4 composed of a cylindrical slip ring terminal portion 43 including a hollow 44 connected to a second electric wire 45 for power transmission is applied. The hollow slip ring 4 applied to the wire twist preventing means is installed in an installation space 135a provided in the neck 135 of the vertical angle adjuster 130. The hollow slip ring 4 is inserted into the hollow space of the slip ring terminal portion 43, (44) is provided with a support shaft (151) penetrating through a bearing as a medium.

The base 110 is provided with a signal input unit (not shown) for operating the rotary actuator 2. Such a signal input unit can be applied to an analog type switch (including a knob) or a digital pad for manipulating the forward, reverse or rotational speed and rotational angle of the servo motor 2 applied to the rotary actuator have.

Hereinafter, an operation state of the fan according to the first embodiment of the present invention will be described.

The blower motor 143 of the head assembly 140 and the servo motor 2 as the rotary actuator are connected to the second electric wire 45 of the hollow slip ring 4 as the wire twisting preventing means and receive signals / The assembly 140 is installed to rotate freely in a horizontal state at an upper portion of the neck 135 on which the support shaft 151 is installed. 5, when the forward, reverse rotation, or rotation speed and rotation angle of the servo motor 2 are manipulated through the signal input unit, the servo motor 2 drives the power shaft (not shown) 21 and transmits the power to the support shaft 151 by the power transmission body 3 to rotate the head assembly 140. [

At this time, the head assembly 140 is rotated through 360 degrees and the rotational speed can be adjusted through the power of the servo motor 2 output by the operation of the signal input unit. Alternatively, the head assembly 140 can be rotated The turning angle and the turning speed can be selectively controlled.

The head assembly 140 is assembled so as to freely rotate freely horizontally at the upper portion of the neck 135 by the support shaft 151 so that the support shaft 151 is unidirectionally moved by the servo motor 2 The rotation speed of the head assembly 140 can be adjusted by adjusting the rotational speed of the power shaft 21 of the servo motor 2 by rotating the support shaft 151 about 360 degrees .

When the user inputs a desired angle, for example, 40 degrees by operating the signal input unit, the servo motor 2 receives the signal and turns the head assembly 140 at a turning angle of 40 degrees. At this time, the servo motor 2 The rotation speed of the power shaft 21 of the head assembly 140 can be adjusted. At this time, the angle that can be operated by the user can be an angle of about 10 to 350 degrees, and the head assembly 140 can be moved left and right at an angle operated by the user through forward and reverse rotation of the servo motor 2, It is possible to return it first.

Therefore, the electric fan 1 according to the first embodiment of the present invention can be manufactured by simply combining the servo motor 2, which is applied to the rotary actuator, and the hollow slip ring 4, which is the power transmission body 3 and the wire twisting- The assembly 140 can be pivoted to a desired angle by rotating or turning the pivot angle to a range of pivot angles extending 360 degrees and the pivot speed of the head assembly 140 can also be adjusted to meet various needs of the user It is possible to reduce unnecessary energy waste.

≪ Embodiment 2 >

Referring to FIG. 5, a fan 1 'according to a second embodiment of the present invention includes a rotary actuator 2' and a wire twisting preventing means 4 '. In other words, the second embodiment of the present invention is a structure excluding the power transmission body of the first embodiment.

1 and 2, the fan 1 'to which the second embodiment of the present invention is applied includes a base 110, a support column 120, and a vertical angle adjuster (not shown) including a neck 135 130), and a head assembly (140) installed on the upper and lower angle adjuster (130).

The rotary actuator 2 'is installed in an installation space 135a' provided in the neck 135. The rotary actuator 2 'as described above is applied with the same servo motor (hereinafter, the same numbers are assigned to the rotary actuator and the servo motor) as in the above-described first embodiment.

The wire twisting preventing means 4 'is installed in the installation space 135a' of the neck 135 so as to be positioned above the rotation actuator 2 ' do. The wire twist preventing means 4 'is provided with a hollow slip ring (hereinafter, the wire twist preventing means and the hollow slip ring are given the same numbers), for example, the known hollow slip ring described in the above- Is applied. At this time, the hollow slip ring 4 'applied to the wire twisting preventing means is installed through the hollow shaft 44 of the slip ring terminal portion 43 with the power shaft 21' passing through the bearing as a medium.

The base 110 is provided with a signal input unit for operating the rotary actuator 2 ', as in the first embodiment.

Hereinafter, an operation state of the fan according to the second embodiment of the present invention will be described.

The blowing motor 143 of the head assembly 140 is connected to the second electric wire 45 of the hollow slip ring 4 'as the wire twisting preventing means and is supplied with the signal / power, and the servo motor 2' Is connected to the signal input unit by a separate power line and signal line and operates. In addition, the head assembly 140 is connected to the power shaft 21 'of the servo motor 2' so as to freely rotate freely in a horizontal state at an upper portion of the neck 135.

5, the servomotor 2 'controls the forward and reverse rotation speeds and the rotation angles of the servo motor 2' through the signal input unit. Then, the servo motor 2 ' And outputs power from the shaft 21 'to rotate the head assembly 140.

In this case, in the second embodiment of the present invention, as the power shaft 21 'of the servo motor 2' is directly fixed to the head assembly 140, the servo motor 2 ' The rotational speed can be adjusted while rotating the head assembly 140 by 360 ° through the power, and the turning angle and the turning speed can be selectively controlled in the swivel angle range extended by 360 °.

Therefore, in the fan 1 'according to the second embodiment of the present invention, the servo motor 2', which is a rotary actuator, in the state of eliminating the power transmitting structure of the first embodiment, and the hollow slip By combining the rings 4 ', the head assembly can be rotated 360 ° or a desired turning angle while the structure is simplified, and the turning speed can also be adjusted.

It should be noted that the above-described embodiments are only illustrative and are not intended to limit the scope of the present invention so that those skilled in the art can readily understand and carry out the present invention. Accordingly, it should be noted that various modifications and changes may be made to the above-described embodiments. The scope of the present invention is defined in principle by the following claims.

1,1 ': Electric fan 2,2': Rotary actuator (Servo motor)
3: Power train 3a: Gear assembly
4,4 ': wire twist preventing means (hollow slip ring)
21, 21 ': power shaft 31: driven gear
32: driving gear 33: connecting gear
41: wire assembly 42: first wire
43: slip ring terminal portion 44: hollow
45: second wire 110: base
120: support column 130: upper and lower angle adjuster
140: head assembly 135: neck
135a, 135a ': installation space 143: blowing motor
147: motor casing 151: support shaft

Claims (4)

And a head assembly mounted on an upper portion of the upper and lower angle adjusting body through a support shaft installed on the neck, the upper and lower angle adjusting members being provided at upper ends of the support pillars, ,
A rotary actuator for transmitting power to the support shaft in a state where the head assembly is installed and rotating the head assembly in a 360 ° range;
A power transmission body connecting the power shaft of the rotary actuator and the support shaft to transmit power; And
And a wire twist preventing means installed in an installation space provided on the neck so as to allow the support shaft to be inserted therethrough so as to prevent twisting of the wire, wherein a turning angle and a turning speed of the head assembly can be adjusted. And a fan capable of controlling the horizontal rotation speed.
The method according to claim 1,
Wherein the rotary actuator is a servo motor and the wire twist preventing means is a hollow slip ring in which a power shaft of the rotary actuator is inserted through a hollow, the power transmission body is applied with a gear assembly or a belt, And a signal input unit for operating the rotary actuator is provided. The horizontal fan rotation angle and the horizontal rotation speed can be adjusted.
And a head assembly installed on an upper portion of the upper and lower angle adjusting member, wherein the upper and lower angle adjusting members are provided on an upper end of the supporting column,
A rotation actuator for rotating the head assembly in a 360 ° range by being axially coupled to the head assembly in a state where the power shaft is installed in an installation space provided on a neck of the vertical angle adjuster; And
And an electric wire twist preventing unit installed in an installation space of the neck so as to allow a power shaft of the rotary actuator to penetrate and prevent twisting of electric wires, wherein a turning angle and a turning speed of the head assembly can be adjusted. A fan that can adjust the angle and horizontal rotation speed.
The method of claim 3,
Wherein the rotary actuator is a servo motor and the wire twist preventing means is a hollow slip ring in which a power shaft of the rotary actuator is inserted through a hollow, Which can adjust the horizontal line turning angle and the horizontal line turning speed.
KR1020140172246A 2014-12-03 2014-12-03 An electric fan KR20160066884A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140172246A KR20160066884A (en) 2014-12-03 2014-12-03 An electric fan

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Application Number Priority Date Filing Date Title
KR1020140172246A KR20160066884A (en) 2014-12-03 2014-12-03 An electric fan

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109185204A (en) * 2018-10-27 2019-01-11 浙江理工大学 A kind of 360 degree of oscillating fans
WO2024178881A1 (en) * 2023-02-27 2024-09-06 广东美的环境电器制造有限公司 Fan pedestal and fan

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109185204A (en) * 2018-10-27 2019-01-11 浙江理工大学 A kind of 360 degree of oscillating fans
WO2024178881A1 (en) * 2023-02-27 2024-09-06 广东美的环境电器制造有限公司 Fan pedestal and fan

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