KR100576107B1 - Grille rotary apparatus of electric fan - Google Patents

Abstract

The present invention relates to a grill rotating device of a fan, by controlling the rotation of the front grill network using an oil damper that always generates a rotational force with a constant force, there is less noise during operation, there is no failure to improve the quality and less material costs The assembly process is very simple, there is an advantage that can reduce the manufacturing cost.

The grill rotation apparatus of the fan according to the present invention for this purpose in the slim fan is equipped with a motor and a fan, provided with a shaft for inserting and supporting the grill in the center front of the slim fan, the shaft is a small shaft and the screw hole is formed A main body front portion having a recess formed at a lower end of the small shaft; An oil damper installed next to the shaft of the front portion of the main body and always controlling the rotational force with a constant force; A boss portion inserted into the shaft to engage with the gear of the oil damper and rotate; A grill fixture inserted into the recess of the shaft and fixed to the groove and inserted into an accommodation space formed in the boss and having a ring-shaped recess formed with a fixing protrusion; A rotation control knob for fastening the screw to the screw hole by inserting the screw into the small shaft, and rotating by the force of a person to control the rotation of the boss by pressing or releasing the recessed portion of the grill fixture; And a front grill net formed by inserting and fixing a large diameter portion of the protruding shape formed at the boss portion and having a plurality of grills inclined at a predetermined angle.

Description

Grill rotating device of electric fan {GRILLE ROTARY APPARATUS OF ELECTRIC FAN}

1 is a perspective view of a grill rotating device of the fan according to the present invention,

2 is an exploded perspective view of a grill rotating apparatus of the fan according to the present invention;

3 is a side cross-sectional view of a grill rotating device of a fan according to the present invention;

4 is an enlarged perspective view of a part of the main body front part in which the shaft and the oil damper shown in FIGS. 2 and 3 are installed;

5 is an enlarged perspective view illustrating a state in which a boss portion for fixing the front grill network to the shaft of FIG. 4 is inserted;

6a and 6b is a front view and a side cross-sectional view showing the boss of FIG.

7 is an enlarged perspective view illustrating a grille fixture inserted into and fixed to a recess formed in the shaft of FIG. 5 and received in a storage space of a boss;

8 is a perspective view showing the grill fixture of FIG.

9 is a perspective view showing a state in which the rotation control knob is inserted into the shaft of Figure 7 fixed with a screw,

10a and 10b is a perspective view showing the front and rear of the rotary adjustment knob of Figure 9,

11 is an enlarged perspective view illustrating a state in which a gear of a boss unit and a gear of an oil damper are engaged with each other.

Explanation of symbols on the main parts of the drawings

10: pedestal 12: switch unit

20: main body 21: main body front portion

22: grill insertion groove 23: shaft

23a: shrinking 23b: screw hole

23c: groove 30: fan

40: oil damper 41: gear of the oil damper

42: oil damper support 43: screw

50: boss portion 52: storage space portion

53: large diameter part of protrusion shape 55: shaft insertion hole

56: gear of boss portion 57: small diameter portion

60: grill fastener 61: shaft insertion hole

62: protruding fixing portion 63: V-shaped groove

63a: protrusion 70: rotation control knob

71: shaft insertion hole 72: handle portion

73: small diameter portion 74: recessed portion

75: convex portion 80: screw

90: front grill network 91: slope grill

92: center grille 100: motor

The present invention relates to a grill rotating device of a fan installed in the center of the front of the box fan or slip-type fan used for wind direction control and safety, in particular to reduce the number of components and the number of work to reduce costs and develop new structures and components It relates to a grill rotating device of the fan that can improve the quality and productivity.

In general, a fan widely used in the summer generates a wind while repeatedly rotating within a certain angle range by a motor for driving a fan. However, such a conventional general fan not only needs a space for the fan to rotate, but also generates a lot of noise by operating the fan operation unit for rotating the fan separately from the rotation of the fan. In addition, there is a problem that frequently occurs between the fan operating portion and the connection portion of the body to reduce the commerciality for the fan.

Therefore, in order to solve such a problem in the related art, a front grill net rotating by wind generated from the fan is installed on the front of the fan fan so that the wind can be sent within a predetermined angle range without rotating the fan operating part.

As described above, the conventional fan system in which the front grill network is installed in the fan includes a synchro motor method and a lock type adjustment knob method.

First, the synchro motor method is a method of operating by using a power source as a separate switch by mounting a grill on the shaft of the motor driving the fan.

However, the synchro motor method is provided with a separate gear box in the motor in order to obtain a low rotational speed, there is a problem that the manufacturing cost is expensive due to many components, such as a replacement car and a small gear. In addition, a separate power switch and lead wires were required, and the assembly cost was complicated, resulting in many manufacturing costs and defective factors. In addition, there is a problem that the electrical mechanical noise occurs with a plurality of gears and many components.

Next, the locking type adjustment knob is a method of fixing the separate shaft to the center of the fan body with a washer and a nut, and inserting the grill, and then turning and loosening the lock-like adjustment knob with the nut to stop or rotate the grill. .

The locking control knob method is difficult to properly control the rotation of the grille because it has to unwind or wind the control knob to the user's sense. In addition, the direction of the grille was difficult to select the wind direction and the angle range was very small. In addition, turning the control knob keeps locking or unlocking, causing a failure factor and loss of the control knob. In addition, the rotation of the grille is not controlled because the resonance phenomenon occurs a lot of noise, the speed of the grille because the wind does not come out properly there was a problem that does not play a role as a fan.

Therefore, the present invention has been made to solve the above problems, the object of the present invention is to control the rotation of the front grill network using an oil damper that always generates a rotational force with a constant force, the noise during operation is less noise and no quality It is to provide a grill rotating device of a fan that can improve the manufacturing cost, reduce the material cost and reduce the manufacturing cost because the assembly process is very simple.

In order to achieve the above object, the grill rotating apparatus of the fan according to the present invention, in a slim fan equipped with a motor and a fan, provided with a shaft for inserting and supporting the grill on the central front of the slim fan, the shaft is a screw A main body having a hole formed therein and a main body having a recess formed at a lower end of the house; An oil damper installed next to the shaft of the front portion of the main body and always controlling the rotational force with a constant force; A boss portion inserted into the shaft to engage with the gear of the oil damper and rotate; A grill fixture inserted into the recess of the shaft and fixed to the groove and inserted into an accommodation space formed in the boss and having a ring-shaped recess formed with a fixing protrusion; A rotation control knob for fastening the screw to the screw hole by inserting the screw into the small shaft and rotating by a human hand to control the rotation of the boss by pressing or releasing the recessed portion of the grill fixture; And a front grill net formed by inserting and fixing a large diameter portion of the protruding shape formed at the boss portion and having a plurality of grills inclined at a predetermined angle.

Here, the boss portion: has a disc shape formed in the center of the shaft insertion hole for inserting the shaft, a protruding large diameter portion for inserting and fixing the front grill net is formed on one side, the other side of the oil damper It is characterized in that the large diameter portion and the small diameter portion of the gear shape engaged with the gear are formed.

The grille fixture has a shaft insertion hole formed at the center for insertion into the small shaft, and a protrusion is formed at the lower end of the shaft insertion hole to insert and fix the recessed portion, and the V-shaped groove having a fixing protrusion is formed. A plurality of parts are formed in a ring shape.

The rotation control knob is formed in the center of the shaft insertion hole for insertion into the small shaft, the groove portion is formed into grooves on both sides of one side, and the handle portion on the other side is formed as a convex portion And, the convex portion is formed with a projection at a corresponding position in order to press the recessed portion of the grill fixture, characterized in that the remaining portion is formed concave.

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

1 is a perspective view of a grill rotating device of a fan according to the present invention, Figure 2 is an exploded perspective view of a grill rotating device of a fan according to the present invention, Figure 3 is a side cross-sectional view of the grill rotating device of a fan according to the present invention, 4 is a partially enlarged perspective view of the main body front part 21 in which the shaft 23 and the oil damper 40 shown in FIGS. 2 and 3 are installed.

As shown in FIGS. 1 to 3, the grill rotating apparatus of the fan according to the present invention has a pedestal 10 for supporting the main body 20 of the fan, and is installed at the front of the pedestal 10 to operate the electric fan. It includes a switch unit 12 for controlling the, and the motor 100 for driving the fan 30 is installed on the other side of the main body front portion 21, one side of the main body front portion 21, the front grill network ( The shaft 23 for inserting and supporting 90 is integrally provided. At this time, the shaft 23 has a small shaft 23a having a screw hole 23b formed therein, and a recess 23c at the lower end of the small shaft 23a, as shown in the perspective view of FIG.

The shaft 23 has a boss portion 50 for rotating the front grill network 90, a grill fixture 60 for controlling a rotational operation of the boss portion 50, and the boss portion 50. Is inserted into the large diameter portion 53 of the fan 30 is rotated by the wind blown forward and the front grill net 90 for changing the direction of the wind, and controls the operation of the grill fixture 60 By inserting and rotating the rotation control knob 70 to control the operation of the boss unit 50 in sequence. Here, the recess 23c of the shaft 23 serves to insert and fix the grill fixture 60, and the small shaft 23a inserts the rotation control knob 70 and then screws 80. The screw hole 23b is formed so as to fix it.

In addition, an oil damper 40 is installed next to the shaft 23 of the main body front part 21 to always rotate the boss part 50 inserted into the shaft 23 with a constant force. As shown in FIGS. 2 and 4, the oil damper 40 is installed by an oil damper support 42 on one side of the main body front part 21, and the boss part inserted into the shaft 23. The gear 41 of the oil damper engaged with the large diameter gear (56 of FIG. 6B) of 50 is provided. Here, the oil damper 40 is a device for adjusting the rotational force with a constant force as always known. Therefore, the rotational force of the boss portion 50 engaged with the oil damper 40 can be constantly maintained.

On the other hand, the front grill net 90 is rotatably installed on the front surface of the fan base, and has a plurality of inclined grill 91 formed to be inclined at a predetermined angle in parallel with each other. Therefore, the wind emanating to the outside of the fan through the plurality of inclined grill 91 is not directed straight at the moment passing through the inclined grill 91 of the front grill net 90 is rotated to see the fan from the front Since the wind can be emitted in a direction that is inclined at a certain angle radially with respect to the center thereof, the wind generated by the fan 30 can be widely extended to every corner of the room without the main body of the fan rotating.

In this way, when the rotation of the front grill net 90 to disperse the wind generated by the fan 30 at various angles to send the wind only in one direction, the front grill net 90 The convex portion formed on the rear portion of the rotation control knob 70 when the rotation control knob 70 located on the central opening by hand is rotated clockwise (can also be configured counterclockwise depending on the configuration) ( Or the outer projection 76 of the protrusion (75 of Figure 10b) is to press the V-shaped groove portion (63 of Figure 8) of the grill fixture 60, the end of the V-shaped groove portion 63 In contact with the storage space 52 of the boss 50 to prevent the boss 50 from rotating. As a result, the front grill net 90 does not rotate and is in a stationary state to send wind generated in the fan 30 in one direction. At this time, the inner projection 77 formed on the rear portion of the rotation control knob 70 is prevented from rotating by the protruding stop end of the rotation stopping piece 64 formed on the inside of the grill fixture 60, the outer projection 76 ) Is pressed while the protrusion 63a of the V-shaped recess 63 of the grill fixture 60 is held.

Hereinafter, the configuration and operation of the grill rotating apparatus of the fan according to the present invention with reference to the accompanying drawings will be described in more detail.

5 is an enlarged perspective view illustrating a state in which the boss unit 50 for fixing the front grill net 90 to the shaft 23 of FIG. 4 is inserted, and FIGS. 6A and 6B are boss units 50 of FIG. 5. Is a front view and a side cross-sectional view.

5 and 6, the boss portion 50 has a disk shape having a shaft insertion hole 55 for inserting the shaft 23 in the center thereof, and the front grill network 90 on one side thereof. The large diameter part 53 which protrudes and is fixed, is formed, The gear shape large diameter part 56 and the small diameter part 57 which mesh with the gear 41 of the said oil damper 40 are formed in the other side. Formed. By the above configuration, the boss portion 50 is inserted into the shaft 23 so as to rotate in engagement with the gear 41 of the oil damper.

FIG. 7 is an enlarged perspective view illustrating the grill fixture 60 inserted into and fixed to the recess 23c formed in the shaft 23 of FIG. 5 and accommodated in the storage space 52 of the boss 50. 7 is a perspective view showing the grill fixture 60 of FIG.

As shown in FIGS. 7 and 8, the grill fixing tool 60 has a shaft insertion hole 61 for inserting into the small shaft 23, and the lower end of the shaft insertion hole 61. Protruding portions 62 are formed to be inserted into and fixed to the recess 23c, and a plurality of V-shaped recesses 63 having a fixing protrusion (or protrusion) 63a are formed in a ring shape. As a result, the grill fixture 60 is inserted into and fixed to the recess 23c of the shaft 23 and inserted into the storage space 52 formed in the boss 50.

In the outer peripheral portion of the shaft insertion hole 61 of the grill fixture 60, when the rotation control knob 70 is rotated to prevent rotation of the inner projection 77 formed in the rear portion of the rotation control knob 70 A piece 64 protrudes, and the protrusion 65 supports the convex part (or the protruding part) (75 in FIG. 10B) formed at the rear portion of the rotation adjusting knob 70 on the outside of the rotation support piece 64. Is formed to protrude to a predetermined height, the outer projection 76 to press the fixing projections (or projections) (63a) formed in the V-shaped groove portion 63 of the grill fixture 60 on the outside of the projection (65). ) Is protruded by the number of the V-shaped groove portion (63).

9 is a perspective view illustrating a state in which the rotation adjusting knob 70 is inserted into the shaft 23 of FIG. 7 and fixed with a screw 80, and FIGS. 10A and 10B are front views of the rotation adjusting knob 70 of FIG. A perspective view showing the back side.

As shown in FIGS. 9 and 10, the rotation control knob 70 has a shaft insertion hole 71 for insertion into the small shaft 23, and a handle portion which is recessed into a groove on both sides of one side thereof. 72 is formed, and in the other side where the said handle part 72 is located, it is formed by the convex part 75, and the remaining part is formed concave 74. As a result, the rotation control knob 70 is inserted into the small shaft 23 to secure the screw 80 by fastening the screw 80 to the screw hole 23b, and rotated by human force to rotate the yaw of the grill fixture 60. Pressing or releasing the groove portion 63 to the boss portion 50 controls the rotation of the boss portion 50.

11 is an enlarged perspective view showing a state in which the gear 56 of the boss portion 50 and the gear 41 of the oil damper are engaged with each other. As shown in FIG. 11, it can be seen that the gear 56 of the boss part 50 and the gear 41 of the oil damper are engaged with each other.

The effect by the above configuration is as follows. First, when the fan 30 installed at the rear of the fan body rotates by the rotational force of the motor 100, the wind is generated toward the front side, but the wind is acted in a whirlwind shape that matches the rotation direction of the fan 30. The front grill net 90 is forcibly rotated while the wind direction changes at a predetermined angle while hitting the inclined grill 91 provided in the inclined grill 91.

At this time, if the front grill net 90 is free from the shaft 23 (rotational state) is rotated at a very high speed, this will reduce the angle of the wind direction and noise and can send wind to a wide range of indoors The effect is very poor. In order to prevent this, the present invention is a gear 56 of the boss portion 50 for rotating the front grill net 90 to the gear 41 of the oil damper 40 to control the rotation to a constant force at all times. And the front grille network 90 was always rotated with a constant rotational force. As a result, the rotation of the front grill net 90 is controlled at an appropriate speed, thereby widening the range of the wind direction and generating a quiet and cool wind.

In order to stop the rotation of the front grill net (90) by turning the rotation control knob 70 in the stop direction, the groove portion 63 of the grill fixture 60 and the storage space portion 52 of the boss portion (50) ) Is rotated to stop the rotation, and when the rotation control knob 70 is turned in reverse, the contact between the recess 63 of the grill fixture 60 and the storage space 52 of the boss 50 is released. The front grill net 90 can be rotated again.

Preferred embodiments of the present invention as described above are disclosed for the purpose of illustration, and those skilled in the art will be able to make various modifications, changes, additions, etc. within the spirit and scope of the present invention, such modifications and changes belong to the following claims Should be seen.

As described above, according to the grill rotating apparatus of the fan according to the present invention, by using the wind power of the fan and its rotational force, it is possible to freely adjust the rotation and stop of the front grill network with a simple component configuration, and there is less trouble. Quiet operation improves quality, reduces material costs and greatly simplifies the assembly process, reducing manufacturing costs.

Claims (4)

In the slim fan equipped with a motor and a fan, A main body having a shaft for inserting and supporting a grill on a central front surface of the slim fan, wherein the shaft is provided with a screw hole formed therein and a groove portion formed at a lower end of the small shaft; An oil damper installed next to the shaft of the front portion of the main body and always controlling the rotational force with a constant force; A boss portion inserted into the shaft to engage with the gear of the oil damper and rotate; A grill fixture inserted into the recess of the shaft and fixed to the groove and inserted into an accommodation space formed in the boss and having a ring-shaped recess formed with a fixing protrusion; A rotation control knob for fastening the screw to the screw hole by inserting the screw into the small shaft, and rotating by the force of a person to control the rotation of the boss by pressing or releasing the recessed portion of the grill fixture; And And a front grill network having a plurality of grills formed by inclining at a predetermined angle by being inserted into and fixed to a large diameter portion of a protruding shape formed at the boss portion. The method of claim 1, wherein the boss portion: A shaft inserting hole for inserting the shaft is formed in the center, and a protruding large diameter portion for inserting and fixing the front grill net is formed on one side thereof, and a gear-shaped stage engaged with the gear of the oil damper on the other side. A grill rotating device of a fan, characterized in that the neck portion and the small diameter portion is formed. The method of claim 1, wherein the grill fixture is: A shaft inserting hole for inserting into the small shaft is formed in the center, and a protrusion for inserting and fixing the recessed portion is formed at the lower end of the shaft inserting hole, and the V-shaped recess having the fixing protrusion is formed in a ring shape. It is formed in multiple numbers, The grill rotation apparatus of the electric fan characterized by the above-mentioned. The rotary knob of claim 1 wherein: A shaft insertion hole for inserting into the small shaft is formed in the center, and a handle portion which is recessed into a groove is formed on both sides of one side thereof, and is formed as a convex portion where the handle portion is located on the other side, and the convex portion The projection is formed in a corresponding position in order to press the recessed portion of the grill fixture, the remaining portion of the grill grill apparatus of the fan, characterized in that formed concave.

Images