KR960011950B1 - Air fan - Google Patents

Abstract

The fan is basically composed of a two-way direction driving sahft (5) and two fan impeller shafts (100). The improvements are the stablizer (62), which consists of a tension coil spring, friction drives (30) and friction followers (90). The tension coil spring (61) is attached to the housing bracket (14) at one end and connected to the second base bracket (81) at another end via turning drum(60). When each fan impeller shaft (100) is swung on, the elastic restoration force of the tension coil spring (61) makes the swing-on motion of the fan impeller shaft (100) stabilized. And because the friction drives (30) at the end of the driving shaft (5) and the friction follower (90) at the end of the fan impeller shaft (100) have convex shapes, they have a close contact to each other, which makes the power transmission efficiency of the fan very high.

Description

fan

1 is a plan sectional view of a fan according to the present invention.

2 is a side view of the fan according to the present invention.

3 is a cross-sectional view taken along the line I-I of FIG.

4 is a partial sectional view showing a first embodiment of a fan impeller shaft power transmission control device in the fan according to the present invention.

5 is a cross-sectional view taken along the line II-II of FIG.

6 is a partial sectional view showing a second embodiment of the fan impeller shaft power transmission control device.

7 is a cross-sectional view taken along line III-III of FIG.

8 is a cross-sectional view taken along the line IV-IV of FIG.

9 is a front view showing a third embodiment of the fan impeller shaft power transmission control device.

10 is a cross-sectional view taken along the line VV of FIG.

11 is a fourth embodiment of a fan impeller shaft power transmission interrupter.

12 is a cross-sectional view taken along the line VI-VI in FIG.

13 is an exploded perspective view showing a fifth embodiment of the fan impeller shaft power transmission control device.

FIG. 14 is a partial front sectional view of the power transmission control device shown in FIG.

FIG. 15 is a sectional view taken along line X-ray of FIG.

16 is a sectional view showing the principal parts of a sixth embodiment of a fan impeller shaft power transmission control device.

17 is a partial cross-sectional view showing an example in which the elastic spring is mounted on the bottom surface of the driving friction vehicle of the fan according to the present invention.

18A to 18E are cross-sectional views showing modified examples of the driving friction car and the driven friction car.

19 is a sectional view showing that the driving friction car and the driven friction car are made of bevel gears having convex curved surfaces.

20 is a sectional view of another embodiment of a fan according to the present invention.

21 is a sectional view taken along line X-ray of FIG.

FIG. 22 is a sectional view taken along line X-ray of FIG. 20. FIG.

* Explanation of symbols for main parts of the drawings

10: side wall of the housing 11: opening formed in the side wall of the housing

13 casing for mounting the drive motor 15: housing

26: gear case 30: driving friction car

53: crank mechanism 62: stabilizer

80: first base bracket for mounting the fan impeller

81: second base bracket for mounting the fan impeller

90: driven friction car 100: fan impeller shaft

M: Drive motor C: Power transmission interlock

F: fan impeller

FIELD OF THE INVENTION The present invention relates to ceiling mounted or wall mounted fans, in particular having a plurality of fan impellers, for example three fan impellers, that blows air simultaneously in all directions from the ceiling or from the wall towards the interior. It is about a fan that can be sent.

Conventional fans have a fan impeller formed of a plurality of fan blades mounted coaxially with a drive motor and rotated the fan head from side to side with a predetermined crank mechanism. As a means of changing the direction of blowing of wind caused by the rotation of the fan impeller according to the driving of the motor, the moving plate for changing the direction of the wind without moving the fan head itself. It was a used structure.

Since the conventional fan is to change the direction of blowing to the left and right, there is a problem that the other side must remain hot because there is no wind while blowing to one side.

In order to solve the problems of the conventional typical fan as described in the Korean Utility Model Publication No. 89-1902, No. 90-9130, etc., the present applicant drives a plurality of fan impeller shafts, for example, three fan impeller shafts vertically. Fans are installed horizontally around the shaft at 120-degree intervals, and can simultaneously blow the drive motor and fan impeller shafts simultaneously or selectively by means of a predetermined power transmission interlock. I've done it.

These fans, however, have expanded the range of the wind direction in all directions, but because they are stationary, they are not used for ceilings or wall hangings. It was not suitable for use where there was no suitable place to deploy this large, political fan.

In addition, the present applicant in the Korean Utility Model Publication No. 90-10012 is a ceiling-mounted or wall surface consisting of three driven friction cars of 120-degree intervals are driven in contact with a removable friction car and a driving friction car with a removable material An attached fan has been disclosed.

However, the fan according to the Korean Utility Model Publication No. 90-10012 has a complicated overall structure, and the shape of the driving friction car mounted on the tip of the driving motor and the driven friction car mounted on the tip of the fan impeller shaft are truncated cones ( As a result, the sliding surface is planar, and the power transmission efficiency between them is inferior.

In addition, each fan impeller of the fan rotates the three fan impeller shafts left and right by the crank mechanism, and when the fan sends a lot of wind, the fan receives reaction force in a direction opposite to the direction in which the fan proceeds. When turning in the direction of the load, the turning force is added to the reaction force, so that the rotating speed of the fixed rotating plate of the fan is rapidly accelerated by the large amount of air flow of the three fans. On the contrary, when turning in the direction opposite to the reaction force, the torque of the crankshaft Since the swing motion was slowed down and severe tremors occurred, the fan impeller was not smoothly rotated.

The present invention has been made in order to solve the above-mentioned problems of the fan disclosed in the above domestic applicants Rookie of the Year has the following object.

That is, one of the objects of the present invention is to provide a ceiling-mounted or wall-mounted fan with excellent sliding efficiency between a drive friction car mounted at the tip of the drive motor shaft and a driven friction car mounted at the tip of each fan impeller shaft.

It is another object of the present invention to provide a ceiling-mounted or wall-mounted fan with a smooth rotation of the fan impeller.

Another object of the present invention is to provide a fan with a simple structure as a whole.

Hereinafter, the configuration and effect of the ceiling-mounted or wall-mounted fan according to the present invention will be described in detail with reference to the accompanying drawings.

1 shows a plan sectional view of a first embodiment of a fan according to the invention. The fan according to this embodiment has an opening 11 at both sidewalls 10, a casing 13 for driving motor mounting is attached to the front wall 12, and a support bracket 14 fixed to the ceiling or the wall. And a housing 15 mounted in a swivel direction in the right and left directions: extending into the housing 15 mounted in the drive motor mounting casing 13 and simultaneously protruding forward of the casing 13; A drive motor (M) having a bidirectional drive shaft (5), wherein the drive shaft (5) is generally conical having a worm screw (20) formed on the outer circumferential surface of the portion extending into the housing and having a convex curved surface at the tip thereof. A drive impeller 30 is fixed and a fan impeller F is fixed to a tip protruding forward of the casing l3; Crank gear meshed with the rotating shaft 22 of the worm wheel 21 engaged with the worm screw 20 of the drive shaft 5 and the electric gear 23 mounted on the worm wheel rotating shaft 22. A gear case 26 mounted on the front wall of the housing, which supports the rotation shaft 25 of the housing 24; and a crank arm 5l and a connecting rod 52 between the upper surface of the crank gear and one end of the housing mounting bracket. Crank mechanism 53 for oscillating the housing 15 by a predetermined angle by the rotational force of the crank gear, by interconnecting with the crank gear; a bent bracket, with an abutment part protruding toward the casing front of the drive motor shaft. The first base bracket for mounting the fan impeller shaft 80 for supporting the fan impeller shaft 100 and both ends thereof are attached to the front end of the gear case 26, and both ends of the fan impeller shaft 100 are mounted upward. Second base bracket for mounting fan impeller shaft bent at an angle (8 1) and: A tension coil spring, one end of which is fixed to the second base bracket 81 for mounting the fan impeller shaft, the other end of which is fixed on the housing attachment bracket l4, and mounted via the rotating drum 60. A fan impeller 61 and a reciprocating swivel accelerometer 62, wherein the rotation drum 60 is a worm wheel rotation shaft 20 or a reduction gear rotation shaft extending outward of the gear case 26. Mounted on 25); In addition, a generally conical driven friction vehicle 90 having a convex curved surface which is in contact with the driving friction vehicle 30 to receive power is fixed to one end thereof, and a fan impeller F is fixed to the other end thereof, and formed on a side wall of the housing. It characterized in that it comprises a fan impeller shaft 100 extending obliquely from the inside of the housing through the opening (11).

Referring to the operation of the fan configured as described above are as follows.

When electric power is supplied to the drive motor M by the operation of a control switch (not shown), as the drive shaft 5 of the drive motor is rotated, the fan impeller F fixed to the front end of the drive shaft is The drive friction car fixed to the inner end of the housing of the drive shaft 5 rotates while the wind blows forward, and rotates the driven friction car 90 whose rotation is in frictional contact with the drive friction car. By rotating the fan impeller shaft 100 on both the left and right sides respectively supported on the first and second base brackets 80 and 81, the both ends can also blow wind to both the left and right sides.

Meanwhile, as described above, the worm wheel 21 engaged with the worm screw 20 of the drive motor shaft 5 is rotated while the fan impeller shaft 100 is being driven, and the worm wheel is rotated. Accordingly, the crank fastened between the upper surface of the reduction gear 24 and the housing mounting bracket 14 by rotating the reduction gear 24 engaged with the electric gear 23 mounted on the worm wheel shaft 22. The arm 51 and the connecting rod 52 are operated so that the housing, as shown in FIG. 1, is pivoted left and right by a predetermined angle with the pivot pin 16 as the pivot center to secure a wider blowing direction. Can be.

In addition, each fan impeller of the fan according to the present invention is stabilized by the stubilizer 62, the left and right swing operation is stable when the fan impeller is rotated in a direction in which the swing force is accelerated, the tension coil by the spring enters This is because the blowing reaction force of each fan impeller is canceled by the elastic force of the spring 61.

The fan according to the present invention may further include a power transmission control device for selectively driving the left and right fan impeller by sliding the driven friction car 90 fixed to the tip of the left and right fan impeller as an intermittent material to the driving friction car as necessary. have. Hereinafter, the configuration of the power transmission control device will be described in detail with reference to FIGS. 5 to 16.

4 and 5 are a first embodiment of the fan impeller power transmission control device according to the present invention.

4 and 5 show a first embodiment of the power transmission control device (C). The power transmission control device is provided with fan grooves 101 and 102 in the longitudinal direction above and below the inner circumferential surface of the fan impeller shaft, which are installed on the first and second base brackets 80 and 81. The cylinder 105 into which the fastening plates 103 and 104 are screwed together, and the keys 106 and 107 inserted into the key grooves 101 and 102 above and below the outer circumferential surface thereof, respectively. Slider 109, which is installed as a left and right moving material and supports the fan impeller shaft 100 as a rotating material through an oilless bush or bearing 108 in the center, and a square screw with a large pitch is formed on the outer circumferential surface and the right end is formed. The operating tool 110 which supports the fan impeller shaft 100 with the rotating material while being in contact with the right end of the slider 109 and is joined to the fastening plate 103 with the left and right moving materials, and one side of the outer peripheral surface of the operating tool. Pressure that is coalesced between the intermittent handle 111 fixed to the left end and the left end of the left fastening plate 104 and the slider 109. It comprises a coil spring (112).

Therefore, when the intermittent knob 111 is slightly rotated to one side in a direction perpendicular to the fan impeller shaft 100, the operation tool 110 is moved to the right side and the slider 109 and the elastic force of the spring 112 are moved. As the fan impeller shaft 100 moves upward, the driven friction car 90 comes into contact with the driving friction car. In addition, when the intermittent knob 111 is slightly rotated to the opposite side, the operation tool 110 moves to the left side while the slider 109 is moved to the left side, so that the fan impeller shaft 100 moves downward along with the same slider. The friction difference 90 falls from the driving friction vehicle 30.

6 to 8 show a second embodiment of the power transmission control device (C). A cylinder 203 to which fastening plates 201 and 202 are fastened at both ends, which are mounted on the first and second base brackets 80 and 81 for mounting the power transmission interlock fan impeller shaft; Slider 205 for supporting the fan impeller shaft 100 as the rotating material through the oilless bush or the bearing 204 in the center, and the lower end of the upper surface of the cylinder 203. An intermittent handle 206 fixed to the outer circumferential surface of the slider 205 and a compression coil spring 207 coalesced between the left fastening plate 202 and the left end of the slider 205. On the upper surface of the cylinder 203, as shown in FIG. 7, a perforated hole 211 consisting of a long hole 208, a short hole 209 and a communication hole 210 interconnecting these holes is formed, An intermittent handle 206 having a lower end fixed to the slider 205 and an upper end extending upward through the endurance hole 211 is shifted along the endurance hole 211 when moved.

Accordingly, when the intermittent handle 206 is moved to the right end (dashed line position in FIG. 8) of the long hole 208, the fan impeller shaft 100 moves upward together with the slider 205, so that the driven friction vehicle 90 is driven. Contact with the friction difference 30. This contact state is maintained by the elastic force of the spring 207. In addition, when the intermittent handle 206 is moved to the short hole 209 (solid line position in FIG. 8), the fan impeller shaft 100 moves downward together with the slider 205 so that the driven friction vehicle 90 drives the driving friction car. Drop from (30).

9 and 10, there is shown a third embodiment of the power transmission control device (C). This power transmission control device has vertical guide grooves or guide rails 302 mounted in the left and right corners, respectively, mounted on the first and second base brackets 80 and 81 for fan impeller shaft mounting. The upper bracket 304 is formed by connecting the upper end of the 302 is connected to the crosspiece 303, the slider is installed inside the guide rail of the upper bracket, and the support for the fan impeller shaft 100 in the center as a rotating material 305, the compression coil spring 308 which is installed between the upper left and right upper surface of the slider and the lower surface of the crosspiece 303 and the connecting plate 306 horizontally connecting the side portions of one guide rail 302 to each other. The middle of the support shaft 311 which horizontally connects the support tool 309 fixed to the center, the intermittent handle 310 whose lower end is screwed up and down in the same direction, and the left and right guide rails 302 horizontally. Shiiso-O-Operationally Activated Snow And the lever 312 supporting the lower surface of the slider 305 by the operation of the intermittent handle 310. The intermittent handle 310 is preferably formed with a square screw having a large pitch at the lower end thereof, and is joined to the support 309 by shanghai copper material.

Accordingly, when the intermittent handle 310 is rotated, the copper handle is raised to raise one end of the lever 312 which is in contact with the lower end thereof by the action of the spring 308, and the other end thereof by the copper spring 308. As the fan impeller shaft 100 descends together with the slider 305 as the support shaft 311 descends, the driven friction vehicle 90 contacts the driving friction vehicle 30. In addition, when the intermittent knob 310 is rotated in the opposite direction, the handle is lowered so that one end of the lever 312 which is in contact with the lower end thereof is lowered, and the other end is raised about the support shaft 311 so that the slider is moved. By pushing 305, the driven friction car 90 is separated from the drive friction car 30. As shown in FIG.

11 and 12 show a fourth embodiment of the power transmission control device (C). The power transmission control device includes a lower bracket 401 mounted on the first and second base brackets 80 and 81 for fan impeller shaft mounting, and a stopper 402 mounted on an upper surface of the lower bracket and mounted on one side of the upper bracket. The housing 403 is installed, and the inside of the housing is rotated around the rotating shaft (409) material and is supported by the fan impeller shaft 100 by knitting and the worm wheel teeth 404 around one side of the outer peripheral surface A formed slider 405 and a worm screw 406 are vertically mounted to the housing 403 by a rotational material and engaged with the warham wheel teeth 404 at a lower end thereof, and the left and right rotation amounts are formed by the stopper 402. The pin 407 is made of an intermittent handle 408 mounted on one side of the upper end to be limited.

Therefore, when the intermittent knob 408 is rotated to the left, the plate 407 is caught by the stopper 402 and further rotation thereof is restricted, and the slider 405 is rotated clockwise by the rotation of the worm screw 406. Accordingly, the copper slider is rotated about the rotational shaft 409, so that the fan impeller shaft 100 pivots downward about the rotational shaft 409 so that the driven friction vehicle 90 contacts the driving friction vehicle 30. do. In addition, if the intermittent knob 408 is rotated once in the opposite direction, the pin 407 is caught by the stopper 402 and the rotation thereof is no longer limited, and the slider 405 is half-turned by the rotation of the worm screw 406. As the fan impeller shaft 100 pivots upward about the pivot shaft 409 as it is rotated in the clockwise direction, the driven friction vehicle 90 falls from the driving friction vehicle 30.

13, 14 and 15 show a fifth embodiment of the power transmission control device (C). The lower bracket 501 mounted on the first and second base brackets 80 and 81 for mounting the power transmission interlock fan impeller shaft, and the notches 502 mounted to the upper surface of the lower bracket and provided at both end sides thereof. The formed housing 503 and the rotating shaft 504 in the housing 503 is disposed as a rotating material, and the fan impeller shaft 100 is knitted and supported by the rotating material, and an outer spline 505 is formed at one end thereof. A round bar 507 is formed and the support piece 506 inserted into the notch 502 is formed at one end of the other end, and an inner spline 508 is formed at the inner surface thereof, and is formed on the outer spline 505 of the round bar. And a support ring 510 formed with a support piece 509 inserted into the notch 502 on one side of the outer circumferential surface thereof, and a connector 511 coupled to the round bar 507 by vertically penetrating the side of the housing 503. And an intermittent handle 512 assembled to the housing 503 by lifting and lowering material so as to contact the housing 503. It made of a compression coil spring 513, respectively tanseol between the housing 503 and the upper support pieces 506, 509 of. The intermittent handle 512 is preferably formed in the lower end portion of the square screw having a large pitch is screwed to the housing 503 as a lifting material. Reference numeral 514 is a snap ring for preventing the release of the support ring 510, 515 is a set screw for the spring (513) coalescing.

Therefore, when the intermittent handle 512 is rotated, the support piece 506, 509 pivots down by the elastic force of the spring 513 as the copper handle rises, so that the copper bar is centered on the shaft 504 of the round bar 507. Since the fan impeller shaft 100 rotates downward along with 507, the driven friction vehicle 90 slides to the driving friction vehicle 30. Further, when the intermittent knob 512 is slightly rotated in the opposite direction, the fan impeller shaft 100 is pivoted about the shaft 504 of the round bar 507 as the knob is lowered while turning the connector 511 downward. Therefore, the driven friction car 90 is separated from the driving friction car 30.

FIG. 16 shows a sixth embodiment of the power delivery control device C. As shown in FIG. The power transmission interlock device keeps the driven friction car 90 as a rotating material through a bearing 601 at one end of the fan impeller shaft 100 and annular to the boss portion 91 of the driven friction car 90. Forming a flange 602 and mounting a normal electromagnetic clutch 603 to correspond to the fan impeller shaft l00 and the annular flange 602 so as to interrupt rotation of the driven friction vehicle 90; In addition, the yog 604 of the electronic clutch 603 is mounted at the tip of the cylinder surrounding the fan impeller shaft through the support bracket 612. The electromagnetic clutch 603 has a rotor 605 which is fixed to the fan impeller shaft 100, a coil 609 wound around a shaft facing the rotor, and a bearing 607 at the shaft portion 606 of the rotor 605. The yoke 604 which is installed as a rotating material through the support material, and the lower end is supported by the fan impeller shaft support cylinder through the support bracket 612, and the annular flange 602 of the driven friction car 90 has an electric pin ( 608 penetrates and is compressed back and forth according to the excitation or non-excitation of the coil 609 by coaling the compression coil spring 611 at the tip of the driving pin to contact the facing (not shown) of the rotor 605, or It consists of an amateur plate 610 spaced apart from the facing. The coil 609 is wired to a control switch mechanism (not shown).

Therefore, when the coil 609 is excited by manipulating a control switch mechanism, the armature plate 610 and the rotor 605 are contacted by magnetic flux, and they rotate together with the driven friction vehicle 90 so that the fan impeller shaft 100 is rotated. ) Is rotated. In addition, when the coil 609 is unexcited by operating a control switch mechanism not shown, the armature plate 610 is dropped from the rotor 605 by the elastic force of the spring 611, thereby driving the driven friction car 90 and the armature plate 610. ) Is rotated and the fan impeller shaft 100 is not rotated.

Next, the structure which can raise the sliding efficiency of the driving friction vehicle 30 and the driven friction vehicle 90 further in this invention is demonstrated.

The fan according to the present invention can further increase the sliding efficiency by contacting the driving friction car 30 and the driven friction car 90 with each other elastically. This spline-couples the boss portion 31 of the drive friction car to the free inner end of the housing of the motor shaft 5 as shown in FIG. 17 to move the boss portion 31 in the axial direction with respect to the drive shaft 5. The driving friction car 30 and the driven friction car 90 can slide together by floating the material, and compressing the compression coil spring 33 on the lower surface of the boss part via the thrust bearing 34 and rotating it around the motor shaft. This is possible by allowing both friction differences to exert a compressive force on each other. On the other hand, the same effect as described above can be achieved not only by driving friction cars, but also by mounting the compression coil spring 93 via the bearing 94 on the bottom of the driven friction car as shown in FIG. Moreover, you may apply to both friction differences.

The inclined surface of the driving friction vehicle 30 according to the present invention and the inclined surface of the driven friction vehicle 90 which is fixed to one end of the fan impeller shaft 100 and abuts against the driving friction vehicle 30 to receive its rotational force are Both of them have a convex curved surface, which is excellent in power transmission efficiency unlike those of the fan disclosed in the above-mentioned domestic utility model notification.

That is, the driving friction car and the driven friction car disclosed in the above-mentioned domestic utility model publications, because the sliding surfaces of both are flat sections, respectively, if the second bracket 81 for mounting the fan impeller shaft due to long time driving or external impact, etc. When the support inclination angle of the fan impeller shaft at both ends is inclined, the inclined surface of the driven friction vehicle 90 does not exactly contact the inclined surface of the driving friction vehicle 30, so that power transmission between the two is not made properly. Even if the fan impeller shaft 100 is inclined upward or downward, the sliding surface of the driven friction vehicle 90 and the sliding surface of the driving friction vehicle 30 fixed to the front end thereof are convex curved surfaces so that the elasticity is good. In addition to being in contact, the driven friction car 90 may maintain constant contact with the driving friction car 30 at all times.

The driving friction vehicle 30 and the driven friction vehicle 90 used in the fan according to the present invention have a housing inner free end of the driving motor shaft 5 and a housing inner freedom of the fan impeller shaft 100 in order to obtain the above effects. It is made by attaching an elastic rubber plate or an elastomeric resin plate 32 fixed to each of the stages or to one of them, the conical boss portion 31 and the inclined surface of the conical boss portion. The shape of the hibernate surface is a convex curved surface.

In addition, the shape of the sliding surface of the elastic rubber plate or the elastic resin plate 32 is fixed to the inclined surface of the conical boss portion (3l) is shown in 18 (a) to (e) as long as the above-described effect is achieved. As shown in FIG. 19, a bevel gear having a convex curved surface as shown in FIG. 19 may be changed to a planar, convex curved surface, a cylindrical curved protrusion, a hollow cylindrical shape, and the like. 35), the same effect as that of using the friction difference having the convex surface, that is, the effect of effectively transmitting power even if the sliding angle is somewhat changed can be obtained.

20 to 22 show another embodiment of a fan according to the invention. The fan according to this embodiment, unlike the fan shown in FIG. 1, uses the crank arm 51 and the connecting rod 52 to rotate the rotational force of the crank gear 24. The second base bracket for mounting the fan impeller shaft ( 81, the copper bracket 81 is reciprocated to the left and right by a predetermined angle around the drive shaft (5).

Therefore, the other fan according to this embodiment is blown by the left and right fan impeller shaft 100 is rotated in place to blow the wind in front of each other, while at the same time turning the drive shaft (5) to the pivot center to the left and right by a certain angle. The efficiency can be further increased. In connection with this configuration, the first and second brackets 80 and 81 for mounting the fan impeller are equipped with bearings 70 mounted on the support part of the housing so as to be rotatable with respect to the drive shaft 5. The shape of the hole 71 through which the left and right fan impeller shafts pass, formed in the side surface, is made of a long hole so as not to interfere with the pivoting movement during the reciprocating rotation of the coaxial shaft, as shown in FIG.

The fan according to this embodiment may have the same power transmission control device C as shown in FIGS. 4 to 16 as in the fan according to the above-described embodiment.

As can be seen from the foregoing, the fan according to the present invention has a sliding efficiency between the driving friction car mounted on one end of the driving motor shaft and the driven friction car rotating at least one taste angle at a predetermined angle with respect to the driving friction car. Irrespective of the change in the sliding angle, the fan impeller oscillates from side to side, and its operation is recognized by the above described stabilizer 62, so that no sharp turning or shaking occurs.

In addition, the fan according to the present invention is simpler in structure than the conventional fan and can reliably operate the power transmission control window (C).

Claims (14)

A drive motor mounting casing 13 is attached to the front wall 12 and has openings 11 at both sidewalls, and is fixed on the support bracket 14 fixed to the ceiling or the wall or fixed to the ceiling or the wall. A housing 15 mounted to swing in the direction; A drive motor (M) having a bidirectional drive shaft (5) mounted in the drive motor mounting casing (13) and extending into the housing and protruding forward of the casing (13), wherein the drive shaft ( 5) the worm screw 20 is formed on the outer circumferential surface of the portion extending into the housing and the conical drive friction car 30 having a convex curved surface at its tip is fixed and also protruded forward of the casing 13. The fan impeller 5 is fixed to the front end: A generally conical driven friction car having a convex curved surface, which is powered by contacting the driving friction car 30 at one end and is powered, and a fan impeller F is fixed at the other end. A fan impeller shaft 100 extending obliquely from the inside of the housing to the outside through an opening 11 formed on the side of the housing: a bent bracket, the center portion of which has an outer circumferential surface protruding forward of the casing 13 of the drive motor shaft; And a first base bracket for mounting a fan impeller shaft (80) for supporting each of the fan impeller shafts (l00) with a rotating material, and both ends of the left and right ends thereof are mounted at the tip of the gear case (26). A second base bracket (81) for mounting a fan impeller shaft such that both left and right ends thereof are bent upward by a predetermined angle so that the left and right fan impellers can be mounted at an angle with respect to the driving motor shaft; Crank gear meshed with the rotating shaft 22 of the worm wheel 21 engaged with the worm screw 20 of the drive shaft 5 and the electric gear 23 mounted on the worm wheel rotating shaft 22. A gear case 26 mounted on the front wall of the housing for supporting the pivot shaft 25 of 24; an upper surface of the crank gear 24 and one end of the housing support bracket l4 or the crank gear; By connecting the upper surface of the 24 and the second base bracket 81 for mounting the fan impeller shaft with the crank arm 51 and the connecting rod 52, the entire housing 15 is opened by the rotational force of the crank gear. Or a crank mechanism 53 for oscillating the left and right fan impellers at a constant angle; And a stubilizer 62 for stabilizing the left and right swing driving of the fan impeller F. 2. The housing 15 is fixed to an electric field or a wall, and the crank mechanism 53 mounted in the housing has a top surface of the crank gear 24 and a second base bracket 81 for mounting a fan impeller shaft. By connecting the bottom surface with the crank arm 51 and the connecting rod 52, the bracket 81 is rotated at a predetermined angle in the transverse direction about the motor shaft by the rotational force of the crank gear, and for mounting the fan impeller shaft. The first and second brackets (80, 81) is a fan, characterized in that the bearing (70) is further mounted to the support for the drive shaft so as to be able to rotate about the drive shaft (5). 2. The stubizer 62 has one end fixed to one end of the second base bracket 81 for mounting the fan impeller shaft, the other end fixed to the housing support bracket 14, and the rotating drum 60. A fan, characterized in that consisting of a tension coil spring (61) to pass through. The stirrer 62 is fixed to one end of a connecting rod 52 attached to a bottom surface of the second base bracket 81 for mounting the fan impeller shaft, and the other end for mounting the fan impeller shaft. A fan, characterized in that it is made of a tension coil spring (61) attached to the bottom of the second base bracket (81) to pass through the rotating drum (60). The power transmission control device (C) according to claim 1 or 2, wherein the driven friction car (90) fixed to one end of each fan impeller shaft (100) is selectively engaged with the driving friction car (30). An electric fan characterized by being provided for each of the left and right fan impeller. 6. The key groove (101) according to claim 5, wherein the power transmission control device (C) is installed on the first and second base brackets (80) (81) for the fan impeller shaft mounting in the longitudinal direction above and below the inner circumferential surface. (102) is formed and the cylinder (l05) in which the fastening plate 103, 104 is combined at both ends: and the key (106, 107) is inserted into the key groove (101) 102 on the upper and lower outer peripheral surface A slider 109 which is respectively protruded and is left and right moving material in the cylinder 105 and supports the fan impeller shaft 100 as a rotating material through an oilless bush or bearing 108 at the center thereof; A square screw having a large pitch is formed on the outer circumferential surface thereof, and the right end contacts the right end of the slider 109 to support the fan impeller shaft 100 as a rotating material and is screwed to the fastening plate 103 as a left and right moving material. Sphere 110 and: the intermittent handle 111 is fixed to one side of the outer peripheral surface of the same operation sphere: and a compression coil spring 112 is installed between the left fastening plate 104 and the left end of the slider 109 Fan, characterized in that. The fastening plates 201 and 202 are fastened to both ends of the power transmission control device C, which is mounted on the first and second base brackets 80 and 81 for fan impeller shaft mounting. Cylinder 203 and: a slider 205 which is left and right moving and rotating material inside the cylinder and supports the fan impeller shaft 100 as a rotating material through an oilless bush or bearing 204 at the center thereof; : An intermittent handle 206 having a lower end penetrating the upper surface of the cylinder 203 and fixed to an outer circumferential surface of the slider 205; and compression compressed between the left fastening plate 202 and the left end of the slider 205. A coil spring 207, wherein the upper surface of the cylinder 203 is formed with a long hole 208, a short hole 209, and a guide hole 211 formed of a communication hole 2101 for interconnecting these holes. Fan, characterized in that. According to claim 5, The power transmission control device (C) is mounted on the first and second base brackets (80, 81) for mounting the fan impeller shaft, guide grooves or guide rails perpendicular to each of the left and right corners ( 302 is installed and the upper bracket 304 is formed by connecting the upper end of the guide rail 302 to the crosspiece 303, respectively: and installed inside the guide rail of the upper bracket of Shanghai copper material and the fan impeller shaft ( Slider 305 for supporting the rotating material 100 and: the compression coil spring 308 that is installed between the upper and lower left and upper surfaces of the slider and the lower surface of the crosspiece 303 and: the side of the one side guide rail 302 mutually horizontal And a supporter 309 fixed to approximately the center of the connecting plate 306 connected to each other: an intermittent handle 310 having a lower end coupled to the supporter with an upper and lower material: and horizontally the left and right guide rails 302. Shii in the middle of the support shaft 311 to connect And a lever (312) which is slidably operable so as to support the lower surface of the slider (305) by the operation of the intermittent handle (310). The housing according to claim 5, wherein the power transmission control device (C) is mounted on the first and second base brackets (80, 81) for mounting the fan impeller shaft, and has a stopper (402) mounted on one side of the upper surface thereof. 403): Slider 405 formed of a rotating material around the rotating shaft 409 inside the housing and supporting the fan impeller shaft 100 by knitting and having a worm wheel teeth 404 formed around one outer circumferential surface thereof. And: and the worm screw 406 is vertically mounted to the housing 403 as a rotating material and engaged with the worm wheel teeth 404 at the lower end is formed and the pin (so that the left and right rotation amount is limited by the stopper 402) Fan 407, characterized in that it comprises an intermittent handle 408 mounted on one side of the upper end. The housing 503 according to claim 5, wherein the power transmission interrupter C is mounted on the first and second base brackets 80 and 81 for fan impeller shaft mounting. )and; In the housing 503 is rotated around the rotating shaft 504 as a rotating material, and the fan impeller shaft 100 is knitted and supported by the rotating material, and an outer spline 505 is formed at one end and at one end of the other. A round bar 507 protruding from the support piece 506 inserted into the notch 502; A support ring 510 having an inner spline 508 formed on an inner circumferential surface thereof to be engaged with the outer spline 505 of the round bar and having a support piece 509 inserted into the notch 502 on one side of the outer circumferential surface: the housing 503 An intermittent handle 512 which is vertically penetrated to the housing 503 so that the lower end contacts the connector 511 coupled to the round bar 507. And a compression coil spring (5l3) installed between the upper end of the housing (503) and the support piece (506) (509), respectively. According to claim 5, wherein the power transmission control device (C) is to leave the driven friction car 90 as a rotating material through the bearing 601 at one end of the fan impeller shaft (100) and driven friction car (90) An annular flange 602 is formed on the boss portion 91 of the crankshaft, and a normal electric clutch 603 is attached to the fan impeller shaft 100 and the annular flange so as to interrupt rotation of the driven friction vehicle 90. In addition to mounting 602, the yoke 604 of the electromagnetic clutch 603 is mounted on the tip of the cylinder surrounding the fan impeller shaft through the support bracket 612, and the electromagnetic clutch 603 is a fan impeller shaft ( Rotor 605 condensed to 100: Coil 609 is wound on the side of the rotor facing the rotor 605, the shaft 606 of the rotor 605 is provided via a bearing 607, and the lower end portion And yoke 604 supported by the fan impeller shaft support cylinder through the support bracket 612: and driven friction A driving pin 608 penetrates the annular flange 602 of the 90 and the ball is compressed back and forth according to the excitation or non-excitation of the coil 609 by coaling the compression coil spring 611 at the tip of the driving pin. And an amateur plate (610) in contact with or spaced from the facing (605) of the facing (605). The driving friction vehicle according to claim 1 or 2, wherein the driving friction vehicle is fixed to an inclined surface (sliding surface) of the driving friction vehicle 30 fixed to the free end of the driving shaft 5 and one end of the left and right fan impeller shafts 100. The inclined surface (sliding surface) of the driven friction vehicle 90 which receives the rotational force by friction by abutting against the 30 is a power transmission even if both or both of the sliding angles are changed by the convex curved surface. This is characterized by a fan. The upper surface of the conical boss portion 31 of the driving friction car and the conical boss portion 91 of the driven friction car is planar, curved projection, cylindrical, or hollow cylindrical elastic rubber plate or elastic. A fan, wherein a synthetic resin plate is fixed. The method according to claim 13, wherein the boss portion 31 of the drive friction car and the free ends of the drive shaft 5 are splined to each other, and the movable boss portion 31 is made to flow in the axial direction with respect to the drive shaft. The compression coil spring 33 is installed on the lower surface of the negative side so as to be rotated around the motor shaft through the thrust bearing 34, or the free ends of the boss portion 91 and the fan impeller shaft 100 of the driven friction vehicle are mutually splined. And the copper boss portion 91 to flow in the axial direction with respect to the fan impeller shaft, and the compression coil spring 93 is attached to the lower surface of the boss portion via the thrust bearing 94 around the fan impeller shaft 100. Fans, characterized in that both friction differences (30) and (90) by actuating in the rotating material to act on the mutual compression force on the sliding surface during the sliding.