KR100404909B1 - air-conditioner shutter opening and shut ting device - Google Patents

Abstract

The present invention provides a shutter opening and closing device of the air conditioner to minimize the number of parts of the shutter opening and closing device to ensure precise operation and to ensure the stability of the operation, and to reduce the parts cost and assembly productivity. An inner frame fixedly installed by the fastening means inwardly; Vertical rail grooves formed vertically in both sides of the inner frame and having upper and lower side guide pins of the shutter for opening and closing the discharge port and having an inner groove during the inclined period to guide the lifting and tilting movements of the shutter; A pinion formed by a motor bracket installed at a center across both sides of the inner frame and having a forward and reverse rotation motor and a guide shaft installed on the shaft of the motor; The body is vertically installed and fixed to the inner center of the shutter and is moved together with the shutter. A rack for vertically engaging the pinion and lifting the shutter is formed. An internal gear for rotating and tilting is formed, and the rail groove in which the guide shaft formed in the pinion is guided includes a rack guide member formed together in the vicinity of the rack and the internal gear.

Description

Air conditioner shutter opening and shut off device

The present invention relates to an air conditioner, and more particularly to a shutter opening and closing apparatus of the air conditioner to block the inflow of foreign matters through the discharge port when the operation of the air conditioner is stopped.

In general, the air conditioner has a suction port and a discharge port are formed in the lower front and the front of the indoor unit main body so that indoor air is sucked and discharged into the air conditioner.

When the air conditioner is turned off, foreign matters are introduced into the inside through the discharge port, so the inside of the air conditioner should be frequently cleaned. As the air is discharged to the room together with air, the indoor air is contaminated and thus the cleanliness of the indoor air is reduced.

In order to solve such a problem, a shutter opening and closing device for opening and closing an air outlet has been proposed.

Accordingly, after the air conditioner is stopped, the shutter is always blocked by the shutter so that foreign matters and the like are prevented from entering the air conditioner through the air outlet, thereby preventing internal contamination of the air conditioner and the cleanness of the air discharged through the air outlet when the air conditioner is operated. In order to prevent the pollution of indoor air and at the same time do not use for a long time, there is no need to put a plastic cover, as in the prior art has the effect of maintaining the convenience of use and aesthetic appearance as it is.

Korean Patent Publication No. 10-0215048 (1999.05.21) has been proposed as a prior art for such a shutter opening and closing device of the discharge port. This prior art has a problem that the number of parts constituting the shutter opening and closing device increases the manufacturing cost for implementing the shutter opening and closing device, and at the same time the operation is complicated as the number of parts increased.

Therefore, the present invention was made to solve the problems of the prior art as described above, the air conditioner to ensure the stability of the operation and improve the assembly cost and improve the assembly productivity while minimizing the number of parts of the shutter opening and closing device Its purpose is to provide a shutter opening and closing apparatus.

In order to achieve the above object, the present invention,

An inner frame fixedly installed by a fastening means in the discharge hole formed in an upper portion of the indoor unit main body;

Vertical rail grooves formed vertically in both sides of the inner frame and having upper and lower side guide pins of the shutter for opening and closing the discharge port and having an inner groove during the inclined period to guide the lifting and tilting movements of the shutter;

A pinion formed by a motor bracket installed at a center across both sides of the inner frame and having a forward and reverse rotation motor and a guide shaft installed on the shaft of the motor;

The body is vertically installed and fixed to the inner center of the shutter and is moved together with the shutter. A rack for vertically engaging the pinion and lifting the shutter is formed. An internal gear for rotating and tilting is formed, and the rail groove in which the guide shaft formed in the pinion is guided includes a rack guide member formed together in the vicinity of the rack and the internal gear.

Between the internal gear connected to the rack is characterized in that the pinion is formed with a turning gear teeth for smooth turning to the rack or internal gear.

The vertical rail groove formed in the inner frame has a step from the inner groove to the lower portion during the inclination so as to independently guide guide pins formed on both sides of the shutter and having different diameters.

1 is an overall exploded perspective view of the shutter opening and closing apparatus of the air conditioner of the present invention.

Figure 2 is an exploded perspective view of the main portion of Figure 1;

Figure 3 is a perspective view of the rack guide member of the present invention.

Figure 4a, 4b is a working state of the present invention.

<Explanation of symbols for the main parts of the drawings>

10: indoor unit main body 12: discharge port

20: inner frame 26: vertical rail groove

26a: groove during the slope 32: motor

34: pinion 34a: guide shaft

40: shutter 42, 44: guide pin

50: rack guide member 56: rack

58: internal gear 60: rail groove

62: turning teeth

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

Figure 1 is an exploded perspective view of the shutter opening and closing apparatus of the air conditioner of the present invention, Figure 2 is an exploded perspective view of the main part of Figure 1, Figure 3 is a perspective view of the rack guide member of the present invention, Figure 4a, 4b is an operation of the present invention The state diagram is shown.

Reference numeral 10 shows the indoor unit main body.

The indoor unit main body 10 has a discharge port 12 for discharging the air of the air conditioner is formed in the upper portion and a suction port (not shown) for suctioning the air into the air conditioner is formed in the lower portion and constitutes the appearance of the air conditioner.

The inner frame 20 is fixed to the inner side of the indoor unit main body 10 in which the discharge port 12 is formed by the fastening means of the screw.

That is, the screw is inserted through the hole through the fixing blade pieces 24 formed on both side portions 22 of the inner frame 20 to be fastened and fixed into the indoor unit main body 10.

Guide pins 42 and 44 formed on both sides of the inner side of the inner frame 20 on both sides 22 of the inner frame 20 are positioned to guide the lifting and lowering movement of the shutter 40. The vertical rail groove 26 having the groove 26a is formed.

The vertical rail groove 26 is preferably formed on both sides of the shutter 40 to have a step to guide the guide pins 42 and 44 having different diameters.

That is, for example, the diameter of 6 mm and the length (axis length) of the upper guide pin 42 of the shutter 40 are 10.5 mm, and the diameter of 9 mm and the length (axis length) of the lower guide pin 44 is set to 10.5 mm. The entire vertical length of the vertical rail groove 26 is set to 5.5 mm in width and depth corresponding to the diameter and length of the upper guide pin 42, and the lower side from the inner groove 26a to the lower side during the inclination. The guide pin 44 has a stepped width and depth to match the diameter and length of the guide pin 44.

The motor bracket 30 is installed in the center of the support bracket 28 formed across both side portions 22 of the inner frame 20, and the motor 32 capable of forward and reverse rotation through the motor bracket 30 is provided. ) Is installed. The motor 32 is usually driven by a driving operation unit (not shown) or a wireless driving operation means (for example, a remote control) installed in the indoor unit main body 10.

The pinion 34 is installed and fixed to the shaft 32a of the motor 32, and the guide shaft 34a extends in a protruding form at the center of the pinion 34 so as to be integrally formed.

Reference numeral 50 denotes a rack guide member.

As shown in FIG. 3, the rack guide member 50 is a body 52 having an appearance of a hockey stick, and is screwed through a hole of a plurality of fixing pieces 54 formed in the body 52. It is fixedly installed perpendicular to the inner (inner surface) center of the shutter 40 and moves together with the shutter 40.

In addition, the body 52 is formed with a rack 56 in a vertical direction and an internal gear 58 extending in an arc from the bottom of the rack 56 together with the pinion 34 to be engaged with the body. The rail groove 60 in which the guide shaft 34a formed in the pinion 34 is inserted is formed along the vicinity of the rack 56 and the internal gear 56.

On the other hand, it is preferable that the pinion 34 forms a turning gear tooth 62 for smooth turning to the rack 56 or the internal gear 58 between the internal gear 58 connected to the rack 56. Do.

Although the number of the turning gear teeth 62 is illustrated as one in the figure, it is possible to smoothly turn the pinion 34 by forming 2-4 pieces according to the size of the pinion 34.

On the other hand, reference numeral 52a is a stopper that prevents the pinion 34 from moving upwards anymore, and is integrally formed on the upper portion of the body 52.

According to the present invention configured as described above, in the state in which the operation of the air conditioner is stopped, the shutter 40 closes the discharge port 12 as shown in FIG. 4A.

That is, the ejection opening 12 is closed with the shutter 40 inclined, and the lower end of the shutter 40 is in the state hanging on the ejection opening 12, and the shutter 40 is also the ejection opening 12. In the closed state, the upper guide pin 42 of the shutter 40 is positioned above the vertical rail groove 26 and the lower guide pin 42 is positioned in the inner groove 26a during the inclination. The pinion 34 is positioned near the end of the internal gear 58.

The motor 32 is driven when the user operates the operation operation unit or the wireless operation operation means installed in the indoor unit main body 10 to open and close the discharge port 12 while the air conditioner is stopped.

Accordingly, as the pinion 34 installed on the shaft 32a rotates forward while the motor 32 rotates forward, the pinion 34 rotates while engaging the internal gear 58 so that the shutter 40 does not vertically move once. The lower guide pin 44 is rotated about 5 ° about the upper guide pin 42 of the shutter 40 so that the lower guide pin 44 escapes from the inner groove 26a during the inclination and is positioned in the vertical rail groove 26. Accordingly, the lower end of the shutter 40 is released from the locked state of the discharge port 12 to maintain the vertical state. At this time, the pinion 34 is a turning tooth gear 62 connecting the internal gear 58 and the rack 56. By being engaged with the rack 56 through the shutter 40 is to move vertically downward.

In this case, the shutter 40 moves downward in a stable state by receiving guides of the upper and lower side guide pins 42 and 44 from the vertical rail grooves 26.

Meanwhile, the guide shaft 34a formed integrally with the pinion 34 is guided along the trajectory of the rail groove 60, so that the pinion 34 maintains a stable engagement between the internal gear 58 and the rack 56. Stability is guaranteed.

As described above, when the shutter 40 is lowered to open the discharge port 12 as shown in FIG. 4B, and the operation of the air conditioner is stopped afterwards, the shutter 40 is raised to close the discharge port 12.

That is, as the pinion 34 installed on the shaft 32a reverses while the motor 32 rotates in reverse, the pinion 34 rotates while engaging the rack 56 so that the shutter 40 rotates with the upper and lower guide pins. 42) (44) is guided by the vertical rail groove (26) to the ascending movement in a stable state, according to the rotation of the pinion (34) passing through the engagement of the rack (56) turning teeth (62) When the entry into the internal gear 58 is made, the shutter 40 rotates about 5 ° back about the upper guide pin 42 of the shutter 40 without performing a vertical upward movement. As the 44 is positioned from the vertical rail groove 26 to the inner groove 26a during the inclination, the lower end of the shutter 40 is caught by the discharge port 12 so that the shutter 40 closes the discharge hole 12. .

In this case, the shutter 40 moves downward in a stable state by receiving guides of the upper and lower side guide pins 42 and 44 from the vertical rail grooves 26.

Meanwhile, the guide shaft 34a formed integrally with the pinion 34 is guided along the trajectory of the rail groove 60, so that the pinion 34 maintains a stable engagement between the internal gear 58 and the rack 56. Stability is guaranteed.

On the other hand, as described above, when the shutter 40 moves up and down, the guide pins 42 and 44 formed at both upper and lower sides of the shutter 40 during the opening and closing operation of the discharge port 12 are formed in the vertical rail groove 26 having a step. Since the guide pins 42 and 44 are guided in an independent form, the guide pins 42 and 44 do not interfere with the vertical rail grooves 26 to which the inner grooves 26a are connected during the inclination, thereby ensuring a stable state of movement.

As described above, the present invention allows the shutter to open and close the discharge port to block dust or foreign matter introduced through the discharge port, thereby increasing the cleanliness of the discharged air. In the configuration that the inclined movement is made together, the rack and the internal gear are integrally formed on the rack guide member, and the guide shaft is integrally formed on the pinion to ensure the engagement stability of the rack and the internal gear, and the rail guides the guide shaft. As the groove is integrally formed in the rack guide member, it has an effect of minimizing the number of components constituting the shutter opening and closing device while ensuring the stability of the operation, and reducing the parts cost and improving the assembly productivity.

Claims (3)

An inner frame fixedly installed by a fastening means in the discharge hole formed in an upper portion of the indoor unit main body; Vertical rail grooves formed vertically in both sides of the inner frame and having upper and lower side guide pins of the shutter for opening and closing the discharge port and having an inner groove during the inclined period to guide the lifting and tilting movements of the shutter; A pinion formed by a motor bracket installed at a center across both sides of the inner frame and having a forward and reverse rotation motor and a guide shaft installed on the shaft of the motor; The body is vertically installed and fixed to the inner center of the shutter and is moved together with the shutter. A rack for vertically engaging the pinion and lifting the shutter is formed and extends in an arc from the bottom of the rack to engage the pinion to engage the pinion at a predetermined angle. An internal gear for rotating and tilting is formed, and a rail groove for guiding the guide shaft formed in the pinion includes a rack guide member formed together in the vicinity of the rack and the internal gear; The opening and closing device of the air conditioner, characterized in that the pinion is formed between the turning gear teeth for smoothly turning the rack or the internal gear between the internal gear connected to the rack. delete The air conditioner of claim 1, wherein the vertical rail groove formed in the inner frame has a step from the inner groove to the lower portion during the inclination so as to independently guide guide pins having different diameters. Shutter opener.