KR102613470B1 - Air Conditioner Side Outlet Opening/Closing Door Device - Google Patents

Abstract

The present invention is structurally composed of a simple rotation method, so that it is easy to manufacture, has fewer failures, and reduces production costs, while improving the aesthetics of the air conditioner by allowing the door flap to be hidden inside the main case when opened. This relates to a door opening and closing device for the side outlet of an air conditioner. The side discharge opening and closing door device according to the present invention is a side discharge opening and closing door device that opens and closes the side discharge openings (20) formed on the side cases (14) adjacent to both left and right ends of the front case (12) of the main body case (10), A discharge grill 300 provided inside the side discharge port 20 to guide air flow to the side discharge port 20; A door flap 500 having an area corresponding to the size of the side discharge port 20; A first rotating arm 510 protruding from the lower rear surface of the door flap 500; A motor having an output shaft 610 and mounted on the body of the discharge grill 300, wherein the output shaft 610 is coupled to an end of the first rotation arm 510 to rotate the first rotation arm 510. (600); And it is formed to protrude from the upper rear surface of the door flap 500, and maintains a rotation center axis on the same line as the rotation center axis of the output shaft 610 of the motor 600, so that the hinge axis is attached to the body of the discharge grill 300. A second rotary arm 520 pivotably hinged by 330; Includes.

Description

Air Conditioner Side Outlet Opening/Closing Door Device}

The present invention relates to an opening/closing door device that opens and closes the side discharge port of the indoor unit of an air conditioner. More specifically, it is structurally composed of a simple rotation method, so that it is easy to manufacture, has fewer failures, and reduces production costs. This relates to a side outlet opening/closing door device for an air conditioner that improves the aesthetics of the air conditioner by allowing the door flap to be hidden inside the main body case.

In general, an air conditioner is a device for comfortably adjusting indoor air conditions by performing a series of refrigerant cycles of compressing, condensing, expanding, and evaporating the refrigerant.

As an air conditioner, a separate type air conditioner is generally used in which a heat dissipating part with a condenser and a heat absorbing part with an evaporator are installed separately. At this time, the heat dissipating part is installed outdoors, so it is usually called an 'outdoor unit', and the heat absorbing part is installed in an air-conditioned space, that is, indoors, so it is called an 'indoor unit'.

Among conventional air conditioners, as shown in Patent Document 1, a type is known that has, for example, a circular front discharge port on the front of the indoor unit, and a side discharge port that is long and open in the vertical direction on the side.

When the circular door is moved forward, the front discharge port widens and opens to discharge air, and the side discharge port is opened and closed by sliding the long side door forward and backward in the vertical direction.

In addition, the present inventors have studied an air conditioner that allows blowing by selecting or combining front wind and side wind only through side discharge ports without the front discharge port. For example, there are patent applications No. 10-2022-0099243 (2022.08.09.) and 10-2022-0099244 (2022.08.09.).

In the conventional air conditioner including Patent Document 1, the side discharge opening and closing door that opens and closes the side discharge port is always exposed from the outside of the main body cabinet, as shown in Figures 3 and 4 of Patent Document 1. It is designed to be opened and closed.

In short, when the side outlet opening/closing door is closed, the opening/closing door covering the side outlet appears to be part of the main cabinet, so it does not spoil the aesthetics of the air conditioner.

However, when the side outlet opening/closing door is open, the side outlet opening/closing door moves rearward and is exposed to the outside of the main cabinet, thereby damaging the aesthetics of the air conditioner. In addition, since the open side outlet opening door is exposed to the outside of the main cabinet, it can easily be touched by young children, causing danger or easily breaking down.

In addition, the side outlet opening and closing door is designed to move in a straight line (linear reciprocating motion) in the front and rear direction. Along with the gear device (pinion gear and rack gear) to convert the rotational movement of the motor into linear movement, the straight line of the side outlet opening and closing door is used. Since a separate sliding guide mechanism (support frame and guide connector) is required to guide and support the movement, the structure is complicated and the manufacturing cost increases.

Republic of Korea Patent Publication No. 10-2022-0081615 (2022.06.16.)

The present invention was developed to solve the above problems, and the purpose of the present invention is to make it easy to manufacture, reduce failure, and reduce production costs by using a structurally simple rotation method. To provide a side outlet opening/closing door device for an air conditioner that can improve the aesthetics of the air conditioner by hiding it inside the main case.

In order to achieve the above object, the side outlet opening and closing door device according to the present invention includes a front case (12), a side case (14) on both left and right sides of the front case (12), and a rear case (50). 16), a main body case 10 in which a heat exchanger 70 and a blower fan 40 are sequentially installed forward from the inside of the rear case 16; Left and right side discharge ports (20) respectively formed in the front portion of the side case (14) while contacting both left and right ends of the front case (12); a front guide 100 and a rear guide 200 disposed front and rear to form a discharge passage PG from the blower fan 40 to the side discharge port 20; A discharge grill 300 provided inside the side discharge port 20; A door flap 500 installed in front of the discharge grill 300 has an area corresponding to the size of the side discharge hole 20, and is formed to protrude from the lower and upper rear surfaces of the door flap 500 and is visible in plan view. a side outlet opening/closing door device (500a) including a first rotating arm (510) and a second rotating arm (520) for rotating the door flap (500) in the left and right directions; And a motor 600 that rotates the first rotation arm 510; Includes; The discharge grill 300 has a body disposed across the ends of the front guide 100 and the rear guide 200 inside the side discharge port 20 and is mounted on the front guide 100, and the body A grill blade 302 is formed on the front side to guide the discharge direction of air through the side discharge port 20, and a lower plate portion 304 and an upper plate portion 306 are formed at the lower and upper ends of the body to the rear of the grill blade 302. is formed in the lower and upper parts of the side body of the grill blade 302, and a cut hole 340 through which the first rotating arm 510 and the second rotating arm 520 freely pass to enable rotational movement, respectively. (340) is formed, and a boss portion 310 is formed in the lower plate portion 304, and supports the second rotating arm 520 with the upper plate portion 306 and the cut hole 340 in between. A support plate portion 320 for installing a hinge is formed; The motor 600 is fixed to the boss part 310 with the output shaft 610 facing upward; The first rotating arm 510 and the second rotating arm 520 move the grill blade 302 outward from the rear side of the left and right sides of the door flap 500, which is closer to the front case 12. Reverse extension parts 512 and 522 extend in a detour, and a left and right center direction of the door flap 500 from the rearward extension parts 512 and 522 to the output shaft 610 of the motor 600. It includes inward extension parts 514 and 524 that are bent and extended, and the end of the inward extension part 514 of the first rotation arm 510 is coupled to the output shaft 610 of the motor 600. A center hole 516 is formed at the end of the inward extension portion 524 of the second pivot arm 520, and a pivot hole 526 for pivoting the support plate portion 320 to the hinge axis 330. is formed; When the rotation radius and rotation center position of the first rotation arm 510 and the second rotation arm 520 are rotated toward the side case 14 in the closing direction when viewed from a plan view, the door flap 500 When the side discharge port 20 is blocked and rotated toward the front case 12 in the opening direction, the door flap 500 enters the inside of the front case 12 and is not visible from the outside due to the front case 12. It is configured to be located in the space between the front case 12 and the discharge grill 300.

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In the side outlet opening/closing door device according to the present invention, on the inner surface of the front case 12, when the door flap 500 rotates in the opening direction and is located inside the front case 12, the door flap (500) 500) is characterized in that a receiving groove (20a) is formed to allow it to be accommodated without interference with the inner surface of the front case (12).

In the side outlet opening/closing door device according to the present invention, the door flap 500 includes a front plate 502 that blocks the side outlet 20, and a side guard extending backward from both left and right sides of the front plate 502 ( 504) (504), an upper guard 506 extending backward from the upper surface of the front plate 502, and a lower guard 508 extending backward from the lower surface of the front plate 502.

According to the side outlet opening/closing door device according to the present invention, the door flap has a simple structure in which the door flap rotates by a motor and the first rotating arm, so the air conditioner can be easily manufactured, failures are reduced, and production costs can be reduced.

In addition, when the side outlet is opened, the door flap rotates inside the front case and is hidden by the front case, so the door flap does not protrude or expose to the outside of the air conditioner as in the past, and as a result, when the side outlet is opened, the door flap does not protrude or is exposed to the outside of the air conditioner. The flap does not spoil the aesthetics of the air conditioner or be dangerously exposed to the outside.

Figure 1 is a perspective view of an air conditioner according to the present invention, showing the door flap of the side outlet in a closed state.
Figure 2 is a perspective view of the air conditioner according to the present invention, showing the door flap of the side discharge port in an open state.
Figure 3 is a plan cross-sectional view of the air conditioner according to the present invention, showing the door flap of the side discharge port in a closed state.
Figure 4 is a plan cross-sectional view of the air conditioner according to the present invention, showing the door flap of the side discharge port in an open state.
Figure 5 is a perspective view of the side discharge opening and closing door device according to the present invention.
Figure 6 is an exploded perspective view of the side discharge opening and closing door device according to the present invention.
FIG. 7 is a view of FIG. 6 viewed from another direction.
Figure 8 is a plan cross-sectional view of the side outlet opening/closing door device according to the present invention, showing the door flap in a closed state.
Figure 9 is a plan cross-sectional view of the side outlet opening/closing door device according to the present invention, showing the door flap in an open state.

Hereinafter, specific embodiments of the side discharge opening/closing door device according to the present invention will be described with reference to the accompanying drawings.

1 to 2 show an air conditioner according to the present invention. In Figure 1, a diagram showing a closed state of the door flap of the side outlet is shown, and in Figure 2, a diagram showing an open state of the door flap of the side outlet. This is shown.

Referring to FIGS. 1 and 2, the air conditioner according to the present invention includes a main body case 10 including a front case 12 and a side case 14, and the front two sides of the main case 10, that is, the left and right sides. The side discharge port 20 is formed by opening a side case portion in contact with the corners on both sides.

A door flap 500 is installed at the side discharge port 20 according to the present invention, and this door flap 500 closes the side discharge port 20 (see FIG. 1), or the door flap 500 closes the front case ( 12) The side discharge port (20) is structured to be opened when turned inward and hidden.

When the side discharge port 20 is opened, the discharge grill 300 installed inside the side discharge port 20 is exposed (see FIG. 2), and air is discharged through the open discharge grill 300 to air condition the room.

In Figures 1 and 2, reference numeral '13' denotes a 'decoration part' in which an arbitrary shape or shape is given to the front case 12. This decorative portion 13 simply decorates the shape and shape of the surface of the front case 12 in a special way. That is, the air conditioner shown in Figures 1 and 2 has no front discharge port and the entire front case 12 is blocked, and the surface of the blocked front case 12 is given an aesthetic shape through the decoration portion 13. This is an example of giving. In this embodiment, an air conditioner is illustrated that does not have a front discharge port on the front case 12 as described above, but it may be provided with a separate front discharge port at the location of the decoration portion 13.

The side discharge port 20 is formed in the form of a long opening in the vertical direction, and accordingly, several blowing fans can be installed inside the main body case 10 at intervals in the vertical direction.

Next, Figures 3 and 4 are plan cross-sectional views of the air conditioner according to the present invention. Figure 3 shows the door flap 500 in a closed state, and Figure 4 shows the door flap 500 in an open state. It is shown.

Referring to FIG. 3, the air conditioner has an inlet 50 formed in the rear case 16 of the main body case 10, an inlet filter 60 is provided in the inlet 50, and the inlet filter 60 A heat exchanger 70 is installed inside.

A blowing fan 40 driven by a motor 45 is installed inside the heat exchanger 70.

The side discharge port 20 is formed at the front edge of the main body case 10. In more detail, the side discharge port 20 is formed in the front portion of the side case 14 while contacting both left and right ends of the front case 12.

From the blower fan 40 to the side discharge port 20, a discharge passage PG is formed by the front guide 100 and the rear guide 200, and the end of the discharge passage PG, that is, the front guide 100 and A discharge grill 300 is disposed across the end of the rear guide 200. That is, as can be seen in FIGS. 3 and 4, the discharge grill 300 has its body crossing the ends of the front guide 100 and the rear guide 200 inside the side discharge port 20. It is placed and mounted (fastened) to the front guide 100.

The discharge grill 300 guides the air blown by the blower fan 40 and passing through the discharge passage PG to be discharged in a predetermined direction while being rectified through the grill blade 302 (see FIG. 7).

The side discharge opening/closing door device 500a is installed in front of the discharge grill 300, and the surface of its door flap 500 is installed so that it matches the side discharge opening 20.

In the side outlet opening/closing door device 500a of the present invention, the door flap 500 has a closing direction, which is the direction of closing the side outlet 20, and the door flap 500 is rotated toward the front case 12 to close the front case 12. It rotates in the opening direction and is placed inside. That is, as shown in FIGS. 3 and 4, the door flap 500 rotates toward the side case 14 (closed direction) or rotates toward the front case 12 (open direction) when viewed from the top.

As shown in FIG. 3, when the door flap 500 rotates in the closing direction, the side discharge port 20 is blocked by the door flap 500.

As shown in FIG. 4, when the door flap 500 rotates in the opening direction, the door flap 500 goes inside the front case 12 and is covered by the front case 12. In this case, the rotation range of the door flap 500 is set so that it is located (stored) in the space between the front case 12 and the discharge grill 300. Therefore, when the side outlet 20 is open (i.e., when the air conditioner is in operation), the door flap 500 is hidden inside the front case 12 and is not visible from the outside, thereby improving the aesthetics of the air conditioner. It does not harm (see also Figure 2).

Next, FIGS. 5 to 7 are for explaining the configuration of the side outlet opening/closing door device 500a according to the present invention. FIG. 5 shows a perspective view, and FIG. 6 shows an separated perspective view, and FIG. 7 shows a view of FIG. 6 viewed from another direction.

Referring to FIGS. 5 to 7, the side discharge opening/closing door device 500a is mounted on the discharge grill 300 and is installed to cover the front of the grill blade 302 of the discharge grill 300.

The side outlet opening/closing door device 500a includes elements for rotating the door flap 500. Elements for rotating the door flap 500 include a first rotating arm 510, a second rotating arm 520, and a motor 600.

The first rotating arm 510 and the second rotating arm 520 are designed to be rotated inside the front case 12 without encroaching on the grill blade 302.

The first rotating arm 510 protrudes backwards (in the direction toward the rear of the air conditioner) from the lower rear surface of the door flap 500.

The second rotating arm 520 has the same shape as the first rotating arm 510 and protrudes backward from the upper rear surface of the door flap 500.

The motor 600 has an output shaft 610. The motor 600 is mounted (fixed) to the body of the discharge grill 300.

The output shaft 610 of the motor 600 is coupled to the end of the first rotation arm 510, and rotates the output shaft 610 to rotate the first rotation arm 510.

The second rotation arm 520 is rotated by the hinge shaft 330 on the body of the discharge grill 300 while maintaining the rotation center axis on the same line as the rotation center axis of the output shaft 610 of the motor 600. Possibly hinged.

The positions of the rotation radius and rotation center of the first rotation arm 510 and the second rotation arm 520 are such that when the door flap 500 is rotated in the closing direction, the door flap 500 is connected to the side discharge port 20. ) is blocked and when rotated in the opening direction, the door flap 500 enters the inside of the front case 12 and is set to be covered by the front case 12.

To this end, the first pivoting arm 510 and the second pivoting arm 520 are formed in a curved shape with backward extension portions 512 and 522 and inward extension portions 514 and 524, respectively.

Hereinafter, reference will be made to FIGS. 8 to 9 along with FIGS. 5 to 7.

The rearward extension portions 512 and 522 extend rearward from the rear of the side closest to the front case 12 among both left and right sides of the door flap 500. That is, it extends to the body part beyond the grill blade 302 of the discharge grill 300. Accordingly, the rearward extension portions 512 and 522 extend to bypass (avoid) the grill blade 302 outward.

The inward extension portions 514 and 524 extend from the rearward extension portions 512 and 522 in a curved direction towards the left and right center of the door flap 500.

In this way, the first rotating arm 510 extends backward from a point close to the front case 12 and is curved into backward extension parts 512 and 522 and inward extension parts 514 and 524. , the first rotating arm 510 bypasses the grill blade 302 of the discharge grill 300 without violating it, and in the open state, the first rotating arm 510 (520) moves inside the front case 12. It goes deep inside and becomes invisible from the outside.

A rotation center hole 516 coupled to the output shaft 610 of the motor 600 is formed at the end of the inward extension portion 514 of the first rotation arm 510.

And at the end of the inwardly extending portion 524 of the second pivoting arm 520, a pivoting center hole 526 into which the aforementioned hinge shaft 330 is coupled is formed.

The motor 600 is preferably installed below the discharge grill 300. For this purpose, a boss portion 310 is formed on the lower plate portion 304 (see FIG. 7) of the discharge grill 300, and the mounting flange 602 of the motor 600 is attached to the boss portion 310 using a bolt or screw. It is fastened and fixed by a fastener such as. The motor 600 is mounted with its output shaft 610 facing upward, and the rotation center hole 516 formed at the end of the first rotation arm 510 is coupled to the output shaft 610.

The second rotating arm 520 is installed at the upper part of the discharge grill 300. For stable installation of the second rotating arm 520, a support plate portion 320 is formed at the top of the discharge grill 300. Referring to FIG. 7, the support plate portion 320 is formed below the top plate portion 306 formed at the top of the body.

The support plate portion 320 supports the end of the second rotating arm 520, that is, the end of the inward extension portion 514, and is installed in a hinge manner. For this purpose, a hinge boss 322 is formed on the support plate portion 320 to support the inward extension portion 514 and maintain smooth rotation, and this hinge boss 322 has a hinge for inserting the hinge shaft 330. A hole 324 is formed.

In addition, cut holes 340 (340) are formed in the body of the discharge grill 300. Through these cut holes 340 and 340, the first and second pivoting arms 510 and 520 can freely pass through and rotate, thereby allowing the door to be hidden inside the front case 12. It makes it possible to implement the flap 500. As shown in FIG. 7, the lower cut hole 340 is formed at the bottom of the body at a position communicating with the output shaft 610 of the motor 600, and the upper cut hole 340 is formed at the top plate portion 306. ) and the support plate portion 320.

In the present invention, the door flap 500 may be additionally provided with a configuration that prevents foreign substances from entering the gap formed between the door flap 500 and the side discharge port 20 in a closed state.

For this purpose, the door flap 500 includes a front plate 502 that blocks the side outlet 20, a side guard 504 extending backward from both left and right sides of the front plate 502, and the front plate. It can be configured to include an upper guard 506 extending backward from the upper surface of the front plate 502 and a lower surface guard 508 extending backward from the lower surface of the front plate 502.

Next, Figures 8 and 9 are diagrams for explaining the operational relationship of the side outlet opening and closing door device according to the present invention. Figure 8 shows a diagram showing the door flap 500 in a closed state, and Figure 9 shows a diagram showing the closed state of the door flap 500. A diagram showing the door flap 500 in an open state is shown.

Referring to FIG. 8, when the output shaft 610 of the motor 600 rotates in the closing direction, the first rotating arm 510 rotates in the closing direction (i.e., the direction toward the side case 14) to close the door flap ( 500) is placed in a position that blocks the side discharge port (20).

The first rotating arm 510 of the door flap 500 moves within the range of the cutout hole 340 formed in the body of the discharge grill 300.

Referring to FIG. 9, when the output shaft 610 of the motor 600 rotates in the opening direction, the first rotating arm 510 rotates in the opening direction (i.e., the direction toward the front case 12) to open the door flap ( 500) is placed in a hidden position inside the front case 12. As a result, the side discharge port 20 is opened, and the air blown through the discharge grill 300 is discharged into the room.

The door flap 500 rotated to the open position is hidden inside the front case 12 and is not visible from the outside. Therefore, when the side outlet 20 is opened, the door flap 500 does not spoil the aesthetics of the air conditioner or be dangerously exposed to the outside.

Additionally, the door flap 500 rotated to the open position is located in the receiving groove 12a formed on the inner surface of the front case 12.

The receiving groove 12a of the front case 12 serves to prevent interference with the front case 12 when the first rotation arm 510 rotates. If the receiving groove 12a is formed on the inner surface of the front case 12d in this way, the first rotating arm 510 can be freely rotated within a compact space.

In the above, specific preferred embodiments of the present invention have been shown and described. However, the present invention is not limited to the above-described embodiments, and various modifications may be made by anyone skilled in the art without departing from the gist of the invention as claimed in the claims.

10: Main body case
12: Front case
12a: Acceptance home
13: Decoration part
14: side case
16: Back case
20: side outlet
40: Blowing fan
45: motor
50: intake port
60: Inlet filter
70: heat exchanger
100: Front guide
200: rear guide
300: Discharge grill
302: grill blade
310: Boss part
320: Support plate part
322: Hinge boss
324: Hinge hole
330: Hinge axis
340: Cutting hole
500a: Side outlet opening and closing door device
500: Door flap
502: front plate
504: side guard
506: Top guard
508: Lower guard
510: first rotation arm
512, 522: backward extension part
514, 524: Inward extension part
516, 526: Rotating center hole
600: motor
602: Mounting flange
610: Output shaft

Claims (6)

It is provided with a front case 12, side cases 14 on both left and right sides of the front case 12, and a rear case 16 with an inlet 50, and a heat exchanger ( 70) and a blowing fan 40 are sequentially installed in the main body case (10);
Left and right side discharge ports (20) respectively formed in the front portion of the side case (14) while contacting both left and right ends of the front case (12);
a front guide 100 and a rear guide 200 disposed front and rear to form a discharge passage PG from the blower fan 40 to the side discharge port 20;
A discharge grill 300 provided inside the side discharge port 20;
A door flap 500 installed in front of the discharge grill 300 has an area corresponding to the size of the side discharge hole 20, and is formed to protrude from the lower and upper rear surfaces of the door flap 500 and is visible in plan view. a side outlet opening/closing door device (500a) including a first rotating arm (510) and a second rotating arm (520) for rotating the door flap (500) in the left and right directions; and
a motor 600 that rotates the first rotation arm 510; Includes,
The discharge grill 300 has a body disposed across the ends of the front guide 100 and the rear guide 200 inside the side discharge port 20 and is mounted on the front guide 100, and the body A grill blade 302 is formed on the front side to guide the discharge direction of air through the side discharge port 20, and a lower plate portion 304 and an upper plate portion 306 are formed at the lower and upper ends of the body to the rear of the grill blade 302. is formed in the lower and upper parts of the side body of the grill blade 302, and a cut hole 340 through which the first rotating arm 510 and the second rotating arm 520 freely pass to enable rotational movement, respectively. (340) is formed, and a boss portion 310 is formed in the lower plate portion 304, and supports the second rotating arm 520 with the upper plate portion 306 and the cut hole 340 in between. A support plate portion 320 for installing the hinge is formed,
The motor 600 is fixed to the boss part 310 with the output shaft 610 facing upward,
The first rotating arm 510 and the second rotating arm 520 move the grill blade 302 outward from the rear side of the left and right sides of the door flap 500, which is closer to the front case 12. Reverse extension parts 512 and 522 extend in a detour, and a left and right center direction of the door flap 500 from the rearward extension parts 512 and 522 to the output shaft 610 of the motor 600. It includes inward extension parts 514 and 524 that are bent and extended, and the end of the inward extension part 514 of the first rotation arm 510 is coupled to the output shaft 610 of the motor 600. A center hole 516 is formed at the end of the inward extension portion 524 of the second pivot arm 520, and a pivot hole 526 for pivoting the support plate portion 320 to the hinge axis 330. is formed,
When the rotation radius and rotation center position of the first rotation arm 510 and the second rotation arm 520 are rotated toward the side case 14 in the closing direction when viewed from a plan view, the door flap 500 When the side discharge port 20 is blocked and rotated toward the front case 12 in the opening direction, the door flap 500 enters the inside of the front case 12 and is not visible from the outside due to the front case 12. A side outlet opening/closing door device, characterized in that it is set to be hidden and located in the space between the front case (12) and the discharge grill (300).
delete delete delete According to paragraph 1,
On the inner surface of the front case 12, when the door flap 500 rotates in the opening direction and is located inside the front case 12, the door flap 500 is connected to the inner surface of the front case 12. A side discharge opening/closing door device characterized in that a receiving groove (12a) is formed to accommodate the device without interference.
According to paragraph 1,
The door flap 500 is,
A front plate 502 that blocks the side discharge port 20, a side guard 504 extending backward from both left and right sides of the front plate 502, and a rearward extending side guard 504 from the upper surface of the front plate 502. A side outlet opening/closing door device comprising an upper guard (506) and a lower surface guard (508) extending backward from the lower surface of the front plate (502).

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