KR20010111640A - Opening and closing apparatus for air discharge port of air conditioner - Google Patents

Abstract

The present invention relates to a discharge opening and closing device of the air conditioner that automatically opens or closes the discharge port, in particular to prevent the eccentricity of the shutter for opening and closing the discharge port to enable a smooth lifting and closing operation.

The present invention for this purpose is a discharge opening and closing device of the air conditioner including a shutter for opening and closing the discharge port formed in the main body, a pair of support plates respectively provided on both sides of the discharge port to guide the lifting and lowering of the shutter, and lifting means for lifting the shutter up and down The elevating means includes a pair of elevating members slidably coupled to two support plates, drive means consisting of a rack and pinion, and a driving motor to elevate the elevating member, and guides of the elevating member for elevating the elevating member. A rail including a vertical rail and a plurality of horizontal rails formed on an inner surface of the groove, a slider that is slidably coupled to the lifting member in a longitudinal direction, and are coupled to be spaced apart from both ends of the shutter and penetrating the lifting member and the slider A plurality of support pins fitted to the rails and the support member's support so that the support pins can be guided along the horizontal rail when the elevator member is elevated Characterized in that the part of the pin is a through inclined grooves and the support pins of the slider formed on the portion passing through a horizontal groove formed parallel to the horizontal rail.

Description

OPENING AND CLOSING APPARATUS FOR AIR DISCHARGE PORT OF AIR CONDITIONER}

The present invention relates to a discharge opening and closing device of the air conditioner, and more particularly to a discharge opening and closing device of the air conditioner to prevent the eccentricity of the shutter for opening and closing the discharge opening to facilitate the opening and closing operation.

The indoor unit main body of a general air conditioner is provided with an inlet for sucking air in the room and a discharge hole for discharging the sucked air to the inside of the main body and discharging it back to the indoor space. And inside the main body is provided with a heat exchanger for heat-exchanging the sucked air, and a blowing fan for forcibly blowing the air heat-exchanged in the heat exchanger toward the discharge port. In addition, recently released air conditioners may be provided with a discharge opening and closing device for opening and closing the discharge port of the indoor unit in order to prevent dust or foreign matter into the discharge port of the indoor unit.

1 shows a configuration of a discharge opening and closing device provided in a conventional air conditioner, which will be described below.

Conventionally, the ejection opening and closing device includes a shutter 3 having a size corresponding to the ejection opening 2 and a shutter 3 at both sides of the ejection opening 2 so as to open and close the ejection opening 2 formed at the front cover 1 of the main body. A pair of supporting plates 4a and 4b which support and guide the movement of the shutter 3, and lifting means for lifting and lowering the shutter 3 are included. At this time, the upper rail 6a and the lower rail 6b for guiding the lifting and lowering of the shutter 3 are formed in the two support plates 4a and 4b on both sides of the discharge port 2 in the longitudinal direction, Both ends are provided with an upper support pin 7a and a lower support pin 7b which are fitted to the upper rail 6a and the lower rail 6b and are elevated along the rail.

In addition, the elevating means for elevating the shutter 3 includes the elevating member 5 having a predetermined length in which the rack gear portion 5a is formed, the pinion gear 8 meshed with the rack gear portion 5a of the elevating member 5, And a drive motor 9 for rotating the pinion gear 8. At this time, the elevating member 5 is installed to be elevated in the center portion of the back of the shutter (3) and the upper end is rotatably coupled to the back of the shutter (3). The drive motor 9 to which the pinion gear 8 is coupled is fixed to the rear surface of the front cover 1. At this time, the pinion gear 8 is maintained in engagement with the rack gear portion 5a of the elevating member 5.

The discharge opening and closing device having such a configuration is the lifting and lowering of the elevating member (5) when the pinion gear (8) is rotated by the drive motor (9), the shutter 3 coupled with the elevating member (5) is supported by the support plate (4a, The discharge port 2 of the front cover 1 is opened and closed while raising and lowering along the rails 6a and 6b of 4b).

However, in the conventional discharge port opening and closing apparatus having such a configuration, since only one lifting member 5 for elevating the shutter 3 is disposed at the center of the shutter 3, the shutter (3) is eccentric when the shutter 3 is eccentric due to the shaking of the device. There was a problem that the elevation of 3) was not smooth. In addition, due to these problems, the rails 6a and 6b and the support pins 7a and 7b are worn, and thus the opening and closing of the discharge port 2 is not completed.

The present invention is to solve the above problems, an object of the present invention is to allow the shutter opening and closing the discharge port at the same time to push up both sides of the air conditioner to facilitate the lifting operation of the shutter and the opening and closing operation of the discharge port It is to provide a discharge opening and closing device.

1 is an exploded perspective view showing the configuration of the opening and closing device of the conventional air conditioner.

2 is a cross-sectional view showing the internal configuration of an air conditioner to which the present invention is applied.

Figure 3 is an exploded perspective view showing the configuration of the discharge opening and closing device of the air conditioner according to the present invention.

4 is an enlarged detail view of the main part of FIG. 3.

5, 6, and 7 are views showing the operation of the air conditioner discharge opening and closing device according to the present invention.

Explanation of symbols on the main parts of the drawings

10: main body, 13: discharge port,

20: discharge opening and closing device, 21: shutter,

22a, 22b: support plate, 23: guide groove,

24a, 24b: support pin, 25a: vertical rail,

25b, 25c: horizontal rail, 26a, 26b: elevating member,

27a, 27b: cover, 29: rack gear part,

30a, 30b: pinion gear, 31: rotating shaft,

32: drive motor, 33a, 33b: inclined groove,

35a, 35b: slider, 36a, 36b: horizontal groove,

37: spring support groove, 38: restoring spring,

39: Supporting jaw.

Discharge port opening and closing apparatus of the air conditioner according to the present invention for achieving the above object, and a shutter for opening and closing the discharge port formed in the main body, a pair of support plates which are respectively provided on both sides of the discharge port to guide the lifting and lowering of the shutter; And an elevator opening and closing apparatus of an air conditioner including an elevating means for elevating the shutter, wherein the elevating means comprises a pair of elevating members which are slidably coupled to the two support plates in a longitudinal direction, and the two elevating members together. A driving means for elevating, a vertical rail formed in a longitudinal direction on the support plate to guide the elevating of the elevating member and the shutter, and a plurality of horizontal rails extending in a direction crossing from the vertical rail and spaced apart from each other; A slider to be slidably coupled to one surface of the elevating member in a longitudinal direction, A plurality of support pins coupled to both ends of the spaced apart state and penetrating the lifting member and the slider to be fitted to the rail, so that the support pin can be guided along the horizontal rail when the lifting member is lifted. And an inclined groove formed in a portion through which the support pin of the elevating member passes and a horizontal groove formed in parallel with the horizontal rail in a portion through which the support pin of the slider passes.

In addition, the driving means is a rack gear unit formed in each of the two lifting members in the longitudinal direction, a pair of pinion gear meshed with each of the two rack gear portion, and the two pinion gear to connect the two pinion gear to rotate together And a drive motor for rotating the pinion gear.

In addition, the support plate is formed with a guide groove for receiving the lifting member to guide the lifting member in the longitudinal direction, characterized in that the rail is formed on the inner surface of the guide groove.

In addition, it characterized in that the restoring spring is installed between the slider and the elevating member so that the slider has a restoring force to proceed in the longitudinal direction of the elevating member.

In addition, the restoring spring is accommodated in the spring support groove formed by recessed in the slider, characterized in that the compression spring is supported on one end of the supporting jaw protruding into the spring support groove from the lifting member.

Hereinafter, with reference to the accompanying drawings a preferred embodiment according to the present invention will be described in detail.

As shown in FIG. 2, an air conditioner to which the present invention is applied includes a main body 10 including a box-shaped casing 11 and a front cover 12 covering an open front surface of the casing 11. In the body 10, a normal heat exchanger 15 for heat exchange and a blower fan 16 for blowing a fluid are installed. In addition, the front cover 12 of the main body 10 is formed with an intake port 14 for inhaling indoor air into the inside of the main body 10 at the lower side, the discharge port 13 for discharging the air in the upper side back to the indoor space Is formed.

And a plurality of wind direction control blades 17 for adjusting the direction of the discharged air is installed inside the discharge port 13, the discharge opening and closing device 20 according to the present invention is installed in front of the wind direction control blade (17). . At this time, the shutter 21 of the discharge opening and closing device 20 opens and closes the discharge opening 13 while lifting up and down along the rails 25 provided at both sides of the discharge opening 13. The shutter 21 is lifted from both sides of the discharge port 13 smoothly. The detailed configuration thereof is as follows.

As shown in FIGS. 3 and 4, a pair of support plates 22a are disposed in the longitudinal direction to support the shutter 21 at the same time on both sides of the inner surface of the front cover 12 on which the discharge holes 13 are formed. And 22b) are installed respectively. At this time, each support plate (22a, 22b) is provided with a guide groove 23 is formed long recessed in the longitudinal direction, the support pins (24a, 24b) coupled to both ends of the shutter (21) inside the guide groove (23) A groove-shaped rail 25 is also provided which is elongated in the longitudinal direction so as to be guided.

In addition, the support members 22a and 22b are provided with elevating members 26a and 26b having a predetermined length to elevate along the guide grooves 23 so as to elevate the shutter 21, and the lifting members accommodated in the guide grooves 23 ( Plate-like covers 27a and 27b are coupled to the inner side of the support plates 22a and 22b to support the 26a and 26b. At this time, the grooves 28 corresponding to the rails 25 formed on the support plates 22a and 22b are formed in the cover 27a and 27b so that the support pins 24a and 24b can penetrate and lift.

In addition, the present invention is a drive means for elevating the two lifting members (26a, 26b) on both sides of the rack gear portion 29 formed in the longitudinal direction on one side of the elevating member, and the rack gear portion 29 of the two sides to be engaged with Pinion gears 30a and 30b are rotatably provided on the support plates 22a and 22b, respectively. The pinion gears 30a and 30b are meshed with the gear 32a of the drive motor 32 coupled to one side of the support plates 22a and 22b. In other words, when the drive motor 32 is rotated, the pinion gears 30a and 30b rotate, and when the pinion gears 30a and 30b rotate, the lifting members 26a and 26b move up and down. In addition, the two pinion gears 30a and 30b on both sides are connected to each other via a rotation shaft 31 arranged in the transverse direction so as to rotate together. This configuration allows the two lift members 26a and 26b on both sides to rotate at the same time when the two pinion gears 30a and 30b are rotated at the same time when one drive motor 32 coupled to the one pinion gear 30a rotates. At the same time ascending was to. At this time, the rotation shaft 31 connecting the two pinion gear (30a, 30b) is preferably made of a rod having a polygonal cross-sectional shape to minimize the torsion.

On the other hand, the support pins 24a and 24b coupled to both ends of the shutter 21, respectively, are composed of an upper support pin 24a and a lower support pin 24b, which are spaced apart from each other. In addition, these support pins 24a and 24b pass through the covers 27a and 27b and the elevating members 26a and 26b and are coupled to the rails 25 of the support plates 22a and 22b. The support pins 24a and 24b are moved along the rails 25 of the support plate when the elevating members 26a and 26b are lifted and the lifting members 26a and 26b lift and lower the support pins 24a and 24b. Do it.

In addition, the rails 25 formed on the support plates 22a and 22b are vertical rails 25a formed in the longitudinal direction of the support plate 22a, as shown in FIG. 4, and at the top and middle of the vertical rails 25a. It consists of horizontal rails 25b and 25c which extend a predetermined section in the direction crossing the vertical rail 25a. Here, the vertical rails 25a serve to guide the lifting and lowering of the support pins 24a and 24b, and the horizontal rails 25b and 25c serve as the support pins 24a and 24b when they reach the top of the vertical rails 25a. The upper support pin 24a and the lower support pin 24b simultaneously move in the horizontal direction to guide the shutter 21 to protrude a predetermined section toward the front of the discharge port 13.

In addition, the inclined grooves 33a and 33b formed to be inclined at the portion through which the upper support pin 24a and the lower support pin 24b pass through the elevating members 26a and 26b that move up and down along the guide grooves 23 of the support plates 22a and 22b. ) Is provided. These inclined grooves 33a and 33b have two support pins 24a24 when the support pins 24a and 24b reach the horizontal rails 25b and 25c due to the elevation of the elevating members 26a and 26b. 25b and 25c). That is, the inclined grooves 33a and 33b have two support pins 24a and 24b reaching the horizontal rails 25b and 25c along the vertical rails 25a by the elevating members 26a and 26b. It is pushed by the inclined surface of 33b) to move in the direction of the horizontal rails 25b and 25c.

In addition, in the opening and closing apparatus according to the present invention, two support pins 24a and 24b for supporting the shutter 21 when the elevating members 26a and 26b are raised and lowered are vertical rails 25a and horizontal rails 25b and 25c. It includes a slider (35a, 35b) slidably coupled to the two lifting members (26a, 26b) to move smoothly to facilitate the opening and closing operation of the shutter (21).

As shown in FIG. 4, the sliders 35a and 35b are installed in the receiving grooves 34 formed on one surface of the elevating member 26a to be able to move forward and backward in the longitudinal direction of the elevating members 26a and 26b. . In addition, two horizontal grooves 36a and 36b are formed in the upper and lower portions of the sliders 35a and 35b through which the two support pins 24a and 24b pass. These horizontal grooves 36a and 36b serve to guide the movement of the support pins 24a and 24b when the support pins 24a and 24b move along the horizontal rails 25b and 25c. It is disposed to correspond to the horizontal rails (25b, 25c) of the inner surface, and is formed parallel to the horizontal rails (25b, 25c). Further, the distance L1 between the upper end of the slider 35a and the upper horizontal groove 36a is equal to the distance L2 between the upper horizontal rail 25b formed on the support plate 22a and the upper end of the guide groove 23. Thus, when the upper end of the slider 35a rising together with the elevating member 26a reaches the upper end of the guide groove 23, the two horizontal rails 36a and 36b of the slider 35a and the two horizontal rails of the support plate 22a ( 25b, 25c) are configured to coincide.

In addition, a restoring spring 38 is provided between the elevating members 26a and 26b and the sliders 35a and 35b so that the slider has a restoring force that is normally going (protruding) in the longitudinal direction (upward direction) of the elevating member. The restoring spring 38 is composed of a conventional compression spring that is accommodated in the spring support groove 37 formed by recessing one surface of the slider (35a, 35b). In addition, one end of the restoring spring 38 accommodated in the spring support groove 37 is supported by the support jaw 39 protruding into the spring support groove 37 from the inner surface of the receiving groove 34 of the elevating member 26a. In addition, the elevating members 26a and 26b and the sliders 35a and 35b coupled to each other in such a structure are installed in a state of being received in the guide groove 23 of the support plate.

At this time, as shown in FIG. 5, the slider 35a maintains a state in which the upper end protrudes to the upper portion of the elevating member 26a by the elasticity of the restoring spring 38. At this time, since the horizontal grooves 36a and 36b of the slider 35a are about to rise, the two support pins 24a and 24b are positioned above the inclined grooves 33a and 33b of the elevating member 26a. That is, the slider 35a is positioned so that the two support pins 24a and 24b are in close contact with the upper portions of the inclined grooves 33a and 33b to prevent vibration of the shutter 21 during the lifting operation of the shutter 21. Ensure the smooth lifting operation.

Next, the opening and closing operation of the discharge opening and closing device having such a configuration will be described.

As shown in FIG. 5, when the discharge port 13 is open, the elevating member 26a is positioned below the guide groove 23 of the support plate 22a and the two support pins 24a and 24b coupled to the shutter 21. ) Is also positioned at the bottom while being supported by the vertical rail 25a. In addition, since the two support pins 24a and 24b are caught in the vertical rails 25a, flow in the left and right directions is prevented, and since the lifting members 26a are also accommodated in the guide grooves 23, they do not flow in the left and right directions. . In addition, at this time, since the slider 35a has a restoring force to rise due to the elasticity of the restoring spring 38, the two horizontal grooves 36a and 36b of the slider 35a try to ascend, thereby causing the two support pins 24a and 24b to rise. It is located above the inclined grooves 33a and 33b of the elevating member 26a.

In this state, when the pinion gear 30a meshed with the rack gear portion 29 of the elevating member 26a by the operation of the driving motor 32 rotates, the elevating member 26a is lifted as shown in FIG. 6. This is done. At this time, the slider 35a is raised together with the elevating member 26a, and the two support pins 24a and 24b are pushed up by the elevating member 26a and the slider 35a, and the two support pins 24a and 24b are raised. The shutter 21 combined with the ascends. When the upper support pin 24a reaches the upper end of the vertical rail 25a, the upper support pin 24a is caught by the horizontal rail 25b, thereby limiting the lift. In this case, since the upper end of the slider 35a reaches the upper end of the guide groove 23, the two horizontal grooves 36a and 36b of the slider 35a are restricted from rising in a state coinciding with the horizontal rails 25b and 25c. . Therefore, in this case, the support pins 24a and 24b may be considered to be limited due to the lift limit of the slider horizontal grooves 36a and 36b.

In this state, when the lifting member 26a rises further for a predetermined period, as shown in FIG. 7, the two support pins 24a and 24b are horizontal grooves 36a and 36b and horizontal rails 25b and 25c of the slider 35a. In the state in which the lift is limited through) and pushed into the inclined groove (33a, 33b) of the elevating member (26a) moves along the horizontal groove (36a, 36b) in the lateral direction. Then, at the upper end of the elevating member 26a at the upper end of the guide groove 23, the two support pins 24a and 24b are horizontally moved toward the discharge port 13, and are located at the lower end of the inclined grooves 33a and 33b. Becomes In addition, the restoring spring 38 remains compressed. At this time, since the two support pins 24a and 24b move toward the discharge port 13 along the horizontal rails 25b and 25c and the horizontal grooves 36a and 36b, the shutter 21 completely closes the discharge port 13. do. In this case, the outer surface of the shutter 21 and the outer surface of the front cover 12 form the same plane state.

In addition, when the shutter 21 is opened again in the closed state, the lifting member 26a is lowered while the pinion gear 30a is rotated in the opposite direction as the case described above due to the reverse rotation of the driving motor 32. At this time, since the two support pins 24a and 24b are pushed in opposite directions through the two inclined grooves 33a and 33b of the elevating member 26a, the vertical rails are along the horizontal rails 25a and 25c and the horizontal grooves 36a and 36b. Move towards (25a). That is, the shutter 21 which protrudes toward the front of the discharge port 13 enters the inside of the main body 10 again. And when the two supporting pins 24a and 24b reach the vertical rails 25a and the two supporting pins 24a and 24b are positioned above the inclined grooves 33a and 33b, the elevating member 26a descends, The slider 35a is also lowered together with the elevating member 26a. Since the two support pins 24a and 24b are lowered along the vertical rail 25a, the discharge port 13 of the front cover is completely opened. Thus, the opening operation of the shutter 21 operates in the inverse of the closing operation described above.

On the other hand, since the two pinion gear (30a, 30b) of both sides is connected through the rotating shaft 31 during such opening and closing operation is rotated at the same time. Therefore, the lifting operation of the two lifting members 26a and 26b on both sides, which are lifted by the drive of the pinion gears 30a and 30b, is simultaneously performed. That is, in the present invention, since the opening and closing of the shutter 21 are performed by simultaneously lifting and lowering the two lifting members 26a and 26b disposed on both sides of the shutter 21, the smooth lifting and lowering of the shutter 21 is performed. Accurate opening and closing operation is possible.

As described above in detail, since the opening and closing device of the air conditioner according to the present invention opens and closes the shutter through the elevating member that is simultaneously elevated on both sides of the shutter, the shutter is prevented from being eccentric and the lifting operation of the shutter is smooth. It works.

In addition, the present invention is because the lifting and lowering of the shutter is guided through the vertical rail formed on the support plate, the horizontal opening and closing of the shutter is guided through the horizontal groove of the support plate and the horizontal groove of the slider and the inclined groove of the lifting member, the opening and closing operation of the shutter is The effect is accurate.

Claims (5)

In the discharge opening and closing device of the air conditioner comprising a shutter for opening and closing the discharge port formed in the main body, a pair of support plates respectively provided on both sides of the discharge port to guide the lifting and lowering of the shutter, and the lifting means for lifting the shutter up and down , The elevating means includes a pair of elevating members slidably coupled to the two support plates in a longitudinal direction, driving means for elevating the two elevating members together, and a length of the elevating member and the shutter to guide the elevating of the elevating member and the shutter. A rail including a vertical rail formed in the direction and a plurality of horizontal rails extending in a direction crossing from the vertical rail and spaced apart from each other, a slider slidably coupled to one surface of the elevating member in a longitudinal direction; A plurality of support pins coupled to both ends of the shutter and spaced apart from each other and inserted through the lifting member and the slider to the rail, and the support pins are guided along the horizontal rail when the lifting member is lifted. An inclined groove formed in a portion through which the support pin of the elevating member penetrates the The stopper pin through the discharge port opening and closing apparatus of an air conditioner characterized in that a horizontal groove is formed in parallel with the horizontal rail to the part. The method of claim 1, The driving means connects the two pinion gears so that the rack gear parts respectively formed in the two lifting members in the longitudinal direction, a pair of pinion gears respectively engaged with the two rack gear parts, and the two pinion gears rotate together. And a drive motor for rotating the pinion gear. The method of claim 1, The support plate is formed with a guide groove for receiving the lifting member to guide the lifting member in the longitudinal direction, the outlet opening and closing device of the air conditioner, characterized in that the rail is formed on the inner surface of the guide groove. The method of claim 1, Discharge spring opening and closing device of the air conditioner, characterized in that the restoring spring is provided between the slider and the elevating member so that the slider has a restoring force to proceed in the longitudinal direction of the elevating member. The method of claim 4, wherein The restoration spring is accommodated in the spring support groove formed by recessed in the slider, the discharge opening and closing device of the air conditioner, characterized in that the compression spring is supported on one end of the support projection protruding into the spring support groove from the lifting member.