KR100315256B1 - An electric fan - Google Patents

Abstract

The present invention relates to a rotary fan invented to selectively rotate 120 ° and 360 ° while preventing the power line installed inside the fan from being twisted.

The present invention is a head case; A drive motor having a drive shaft in a downward direction and having a drive gear on the drive shaft; A switching lever having a switching gear installed to rotate in engagement with the driving gear, installed on a head case, moving up and down, and installed to be capable of power switching to rotate 120 degrees or 360 degrees; A power transmission unit fixed to the bracket and connected to mesh with the switching gear of the switching lever and having a link and an arm for transmitting rotational force of the driving motor; A fixed shaft fixedly installed inside the head case, having a coupling groove formed at an upper center thereof, having a second pulley, and having a flange portion at one side of which the arm is fixed; A protective case installed at an upper portion of the fixed shaft, and having a terminal bracket installed therein and a contact terminal provided at the terminal bracket; And a switching unit for electrically operating the fan in contact with the contact terminal installed inside the protective case.

Description

Rotary Fan {AN ELECTRIC FAN}

The present invention relates to a rotating fan, and more particularly, to a rotating fan invented to selectively rotate 120 ° and 360 ° while preventing the power line installed inside the fan from being twisted.

Generally used fan has a stop function and a rotation function, and in the case of a stop function, the wind is generated in a fixed state in one direction, and in the rotation function, most of them are made to supply cool wind while rotating 180 °.

The fan as described above has only a method of forcibly turning the fan itself in the opposite direction when it is desired to supply cool wind while rotating in the opposite direction, that is, 360 °, depending on the place of use.

In addition, in the case of a fan having a rotation function capable of rotating 360 °, the structure is complicated, there is a problem that causes the risk of a safety accident by damaging or cutting the power line by twisting the power line installed therein, 360 The fan that is rotated ° can not be rotated structurally to 120 °, and the structure is complicated to selectively rotate the 120 ° and 360 °, there was a problem that a lot of trouble occurs, which is not practical.

The present invention has been made to solve the above problems, the object of the present invention is to provide a rotary fan that can be used for multi-purpose regardless of the use location by controlling the 120 ° and 360 ° rotation is simple in structure For that purpose.

1 is a perspective view showing a rotating fan of the present invention

Figure 2 is an enlarged cross-sectional view of the main part of the rotary fan of the present invention

Figure 3 is an enlarged plan view of the main portion of the rotary fan of the present invention

Figure 4 is a perspective view of the main coupling portion of the rotary fan of the present invention

* Explanation of simple signs in the drawings

10 Bracket 12 Motor fixing bracket plate

14: power transmission unit fixing bracket plate 16: drive motor

18: drive shaft 20: drive gear

22: shift gear 24: shift lever shaft

26: switching lever 28: idle gear shaft

30: idle gear 32: first driven gear

34: 1st driven gear shaft 36: 2nd driven gear

38: second driven gear shaft 40: first pulley

42: belt 44: flange

46: arm 48: fixed shaft

50: second pulley 52: coupling groove

54 protective case 56 rotating shaft

58: rotation terminal 60: insulation

62: connecting shaft 64: flange

66: contact terminal 68: terminal bracket

70: power line

100: base 102: lower fixture

104: upper holder 106: fan head

108: fan 110: head case

112: power transmission unit 114: head case connection

116: fan connection 118: switching unit

The present invention is a head case; A drive motor having a drive shaft in a downward direction and having a drive gear on the drive shaft; A switching lever having a switching gear installed to rotate in engagement with the driving gear, installed on a head case, moving up and down, and installed to be capable of power switching to rotate 120 degrees or 360 degrees; A power transmission unit fixed to the bracket and connected to mesh with the switching gear of the switching lever and having a link and an arm for transmitting rotational force of the driving motor; A fixed shaft fixedly installed inside the head case, having a coupling groove formed at an upper center thereof, having a second pulley, and having a flange portion at one side of which the arm is fixed; A protective case installed at an upper portion of the fixed shaft, and having a terminal bracket installed therein and a contact terminal provided at the terminal bracket; And a switching unit for electrically operating the fan in contact with the contact terminal installed inside the protective case.

The power transmission unit may include an idle gear installed in the head case to rotate in engagement with the switching gear; A first driven gear shaft having a first driven gear at an upper end thereof and a flange formed at a lower end thereof so as to rotate in engagement with the idle gear; The second driven gear is inserted into the outer side of the first driven gear shaft, and the upper driven second gear is rotated in engagement with the switching gear, and the lower driven second shaft consists of a second driven gear shaft having a first pulley.

In addition, the switching unit has a rotary shaft is inserted into the coupling groove at the bottom to rotate, has a cylindrical insulating portion, a plurality of rotary terminals between the cylindrical insulating portion, the upper surface of the insulating portion The connecting shaft is formed so as to extend in the direction.

Hereinafter, with reference to the accompanying drawings illustrating a preferred embodiment of the present invention in detail.

1 is a perspective view showing a rotary fan of the present invention, Figure 2 is an enlarged cross-sectional view of the main portion of the rotary fan of the present invention, Figure 3 is an enlarged plan view of the main portion of the rotary fan of the present invention, Figure 4 is a rotation fan of the present invention It is a main portion combined perspective view.

One embodiment of the present invention is as follows.

1 to 4, the rotary fan of the present invention is provided with various selection switches, the base 100 is made to be in close contact with the bottom and stabilized, and installed in one direction of the base 100 in the upward direction Is installed in the lower fixture 102, the lower holder 102 is connected vertically, the upper holder 104 is variable in length, and installed on top of the upper holder 104 is rotated 120 or 360 degrees It consists of the fan head 106 and the fan 108 provided with all the said fan heads 106, and the wing | blade for generating wind.

The upper holder 104 and the fan head 106 are connected to each other by the head case connecting unit 114, and the head case 110 and the fan 108 are connected to each other by the fan connecting unit 116. .

2 to 4, the fan head 106 in which the rotation fan 102 or 360 degrees of the rotation fan of the present invention is selectively installed is fixed to the bracket 10 inside the head case 110. It is.

A motor fixing bracket plate 12 is formed at an upper portion of the bracket 10, and a power transmission unit fixing bracket plate 14 is formed at a lower portion thereof.

The driving motor 16 is seated on the motor fixing bracket plate 12 and is fixedly installed by a not shown fixing means, and the power transmission unit 112 is shaken on the power transmission unit fixing bracket plate 14. It is fixedly installed by the fixing means not shown to be supported without.

The drive motor 16 has a drive shaft 18 vertically downward, and a drive gear 20 is provided on the drive shaft 18.

At this time, the drive gear 20 is provided so that the switching gear 22 is engaged, and the switching gear 22 is provided with a switching lever shaft 24 in the upward direction, and the switching lever shaft 24 is At the same time as being fitted to the boss formed in the head case 110 is extended to the outside of the head case 110, the switching lever 26 is provided at the upper end of the switching lever shaft 24.

The switching lever 26 is formed in the shape of a knob to be inserted and removed by hand, the switching lever shaft 24 when the operation of the switching lever 26 slides the inside of the boss of the head case 110, is installed at the end The shift gear 22 moves up and down to selectively engage the first driven gear 32 and the second driven gear 36, which will be described later, to transmit the rotational force of the driving motor 16.

The switching lever 26 can be configured as an automatic type using a solenoid valve, the configuration of this embodiment will be very easy for those skilled in the art.

On the other hand, one side of the switching gear 22 is provided with an idle gear 30 to mesh with the switching gear 22, the idle gear 30 is provided with an idle gear shaft 28 in the vertically upwards It is fitted on the ceiling surface of the head case 110 so as to be rotatable.

And, one side of the idle gear 30 is provided with a power transmission unit 112 having a first driven gear 32 to rotate in engagement with the idle gear 30, the power transmission unit 112 is A second driven gear 36 is provided to selectively engage the shift gear 22 by moving the shift lever 26 and moving up and down by 뺌.

The power transmission unit 112 is fixed to the power transmission unit fixing bracket plate 14 of the bracket (10).

In addition, the power transmission unit 112 is controlled to rotate the fan head 106 by 120 degrees or 360 degrees by the pressing and pulling operation of the switching lever 26.

The configuration of the power transmission unit 112 is as follows.

The power transmission unit 112 firstly includes a first driven gear 32 and a flange 44 formed at a lower end of the first driven gear shaft 34 so as to rotate in engagement with the idle gear 30. A second driven gear 36 formed at an upper end of the second driven gear shaft 38 in which the first driven gear shaft 34 is fitted and rotated in engagement with the switching gear 22; and the second driven gear It consists of a first pulley 40 provided at the lower end of the shaft 38.

A link 45 is provided below the flange 44, and one end of the arm 46 is fixed to the link 45 by a fixing means and is rotatably installed.

One end of the belt 42 is wound around the first pulley 40 provided on the second driven gear shaft 38, and the other end is wound around the second pulley 50 described later.

On the other hand, the fixed shaft 48 is fixed to the lower surface of the head case 110 while maintaining a constant distance from the power transmission unit 112, the second pulley 50 is fixed to the fixed shaft 48 have.

The fixed shaft 48 is formed with a flange portion 64 protruding to one side at the lower end portion, a coupling groove 52 is formed at the inner side of the upper end portion, and the lower end is connected to the head case connecting portion 114. have.

The other end of the arm 46 is fixed to the flange portion 64 formed on the fixed shaft 48 by a fixing means not shown.

Subsequently, the rotation shaft 56 of the switching unit 118 is coupled to the coupling groove 52 of the fixed shaft 48 so as to be rotatable with the head case 110. The cylindrical protective case 54 of the hollow state is provided.

The switching unit 118 is rotatably installed in the protective case 54.

The switching unit 118 is formed in a cylindrical shape, a plurality of rotary terminals 58 made of a metal copper plate, an insulating portion 60 made of a cylindrical shape to have a larger diameter than the rotary terminal 58, and the protective case A terminal bracket 68 fixedly installed at one inner side of the 54 and a plurality of contact terminals 66 installed on the terminal bracket 68 and installed to correspond to the plurality of rotation terminals 58, respectively, A rotating shaft 56 having a bearing coupled to the coupling groove 52 to assist the switching unit 118 to rotate smoothly under the insulating portion 60, and an upper portion of the insulating portion 60. It is formed vertically upward, extends to the outside of the head case 110, and consists of a connecting shaft 62 connected to the fan connecting portion 116 is installed.

One side of the fan connector 116 is fixed to the upper surface of the head case 110, and is fixed to the protective case 54, the other side is fixed to the fan connector 116 is installed.

The rotating fan of the present invention made as described above can be used regardless of the place of use by a simple structure, but selectively rotates 120 degrees and 360 degrees.

Hereinafter, with reference to the configuration of the present invention shown in Figures 2 to 4 will be described for the rotation operation of the present invention.

First, power is applied from a power source not shown to the drive motor 16, and the drive motor 16 operates to rotate the drive shaft 18 provided in the drive motor 16.

As the drive shaft 18 of the drive motor 16 rotates, the drive gear 20 installed at the end rotates, and the switch gear 22 is engaged with and rotated in the switch lever 26 state of the initial state.

As the switching gear 22 rotates, rotation of the idle gear 30 installed in engagement with the switching gear is performed, and the idle gear 30 is rotated by the first driven gear 32 that is installed in engagement with each other. Will be delivered.

The first driven gear 32 receiving the rotational force moves the arm 46 fixed to the flange 44 formed on the lower portion of the first driven gear shaft 34.

At this time, since the arm 46 is fixed at a predetermined distance away from the center of the first driven gear shaft 32 in the circumferential direction, the arm 46 rotates at a constant angle with a constant eccentric movement. That is, by rotating the fixed shaft 48 at a predetermined angle while the arm 46 moves about the first driven gear shaft 32, the left and right rotations are performed at 120 degrees.

Subsequently, in the case where the rotation of 120 degrees is stopped and the rotation is to be rotated 360 degrees, the switching gear 22 provided at the lower end of the switching lever shaft 24 is pressed by pressing the switching lever 26 so that the second? To interlock with.

When the switching gear 22 is engaged with the second driven gear 36 and the rotational force of the driving motor 16 is transmitted, the first pulley 40 installed on the second driven gear shaft 38 rotates, and the belt 42 Is rotated by the second pulley 50.

When the second pulley 5 rotates, the rotational force is transmitted to the fixed shaft 48, but since the fixed shaft 48 is fixedly installed, the head case 110 is rotated 360 degrees around the fixed shaft 48. Will rotate.

That is, since the head case 110 is connected to the fan 108 by the fan connection part 116, the fan 108 of the rotary fan is rotated 360 degrees.

On the other hand, the power supply line 70 installed in the protective case 54 has a contact terminal 66 installed therein in contact with the rotary terminal 58 does not twist or agglomerate with each other, thereby smoothly performing electrical contact action. .

As the fan 108, the fan connector 116, and the head case 110 rotate, the switching unit 118 also rotates, and the rotating shaft 56 installed in the switching unit 118 is slid.

The present invention as described above has been described as an embodiment, which is not limited to the preferred embodiment described above, it is usually in the art to which the present invention pertains without departing from the spirit of the invention as claimed in the claims. Those skilled in the art can be variously modified, of course, such modifications will be within the scope of the claims described as the core elements of the present invention.

The present invention consists of a simple structure that can be rotated by freely selecting 120 ° or 360 °, there is an advantage that can be used in any place without being limited to the use place, because the internal power line is not twisted, it is stable and risk of accident It is effective to prevent.

Claims (3)

A head case; A drive motor having a drive shaft in a downward direction and having a drive gear on the drive shaft; A switching lever having a switching gear installed to rotate in engagement with the driving gear, installed on a head case, moving up and down, and installed to be capable of power switching to rotate 120 degrees or 360 degrees; A power transmission unit fixed to the bracket and connected to mesh with the switching gear of the switching lever and having a link and an arm for transmitting rotational force of the driving motor; A fixed shaft fixedly installed inside the head case, having a coupling groove formed at an upper center thereof, having a second pulley, and having a flange portion at one side of which the arm is fixed; A protective case installed at an upper portion of the fixed shaft, and having a terminal bracket installed therein and a contact terminal provided at the terminal bracket; And a switching unit for electrically operating the fan in contact with the contact terminal installed inside the protective case. The method of claim 1, The power transmission unit includes an idle gear installed in the head case to rotate in engagement with the switching gear; A first driven gear shaft having a first driven gear at an upper end thereof and a flange formed at a lower end thereof so as to rotate in engagement with the idle gear; A rotating fan inserted into an outer side of the first driven gear shaft, a second driven gear installed at an upper end thereof in engagement with a switching gear, and a second driven gear shaft having a first pulley at a lower end thereof. . The method of claim 1, The switching unit has a rotary shaft is inserted into the coupling groove at the lower end to rotate, has a cylindrical insulating portion, a plurality of rotary terminals between the cylindrical insulating portion, and upwards from the upper surface of the insulating portion Rotating fan, characterized in that the connecting shaft is formed to extend.