KR102589570B1 - Air Conditioner Having Adjustable Front Air Outlet - Google Patents

Abstract

The present invention allows the discharge flow rate to be changed by changing the cross-sectional area of the discharge passage according to air conditioning requirements, and maintains the discharge passage long and smooth up to the front discharge port, thereby improving the straight-line inertia of the discharge air and allowing it to travel far. On the other hand, it relates to an air conditioner having a variable front discharge port that allows air to be blown far even if the cross-sectional area of the discharge path increases, and further simplifies the driving device of the variable air discharge port and increases the discharge pressure compared to the same capacity. . The air conditioner according to the present invention includes a main body case (2) having a front discharge port (11) for discharging air into the room on the front plate (10); An outer housing (200a) including a fixed outer housing (300) in which a discharge passage outer housing portion (310) is formed; Drive unit 400; It includes a discharge passage outer housing portion 310 including a passage extension portion 310a and a passage extension portion 310b, and the movable inner housing 600 having the discharge passage PG having the widest cross-sectional area. It includes a front-extendable housing portion 610 that moves back and forth between the position and the narrowest second position, and the maximum diameter d of the front end of the door panel 50 or the front-extendable housing portion 610 is the front discharge port. It is smaller than the diameter (D) of (11), and there is a always-open gap (G) between the door panel (50) or the front expandable housing part (610) and the front discharge port (11) so that air can always be discharged in the radial direction. It is characterized by being maintained.

Description

Air conditioner having an adjustable front outlet {Air Conditioner Having Adjustable Front Air Outlet}

The present invention relates to an indoor unit of an air conditioner, and more specifically, to change the discharge flow rate by changing the cross-sectional area of the discharge passage according to air conditioning requirements, and to maintain the discharge passage long and smooth up to the front discharge port, so that the discharge air It improves the straight-line inertia and allows it to blow farther, and allows air to be blown farther even if the cross-sectional area of the discharge channel increases. Furthermore, it simplifies the driving device of the variable air outlet and increases the discharge pressure compared to the same capacity. It relates to an air conditioner having a variable front discharge port.

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 Documents 1 and 2, there is a discharge port on the front of the indoor unit, a door that blocks the discharge port, and a variable front discharge port that opens wide when the door is moved forward. An air conditioner provided is disclosed.

The indoor unit of a conventional air conditioner (hereinafter simply referred to as 'air conditioner') having a variable front discharge port, including Patent Documents 1 and 2, is, for example, those disclosed in Figures 9 to 14 of Patent Document 1. Likewise, a disc-shaped door blade body with a very large diameter is installed at the end of a cylindrical door blade with a small diameter, and the circumference of the door blade body blocks the opening of the discharge plate.

In this form, as can be seen in Figure 14 of Patent Document 1 (see Figures 37 and 38 together), most of the air exiting the discharge passage hits the door blade body blocking the opening once and then changes direction to a radius. Since the direction is changed outward and discharged through the opening, the discharged air cannot go straight far in front of the air conditioner, but is scattered outward in the circumferential direction, and the amount of air that reaches the far area in front of the air conditioner is extremely small, so the amount of air that reaches the far area in front of the air conditioner is very small. It is difficult to quickly achieve a coordinated effect on the whole.

In addition, the length of the discharge passage until the discharge opening is very short and the cross-sectional area of the passage changes significantly, and the forward and backward movement of the door blade body does not change the cross-sectional area of the discharge passage, but simply opens the discharge opening at the final stage of discharge. Since only the opening gap is changed, it is difficult to secure or maintain the straight-line inertia of the discharged air.

In addition, the driving device of the variable air outlet is composed of a planetary gear set, so that the sun gear engages three or more planet gears at the same time to transmit rotational force, and in addition, each planet gear is in turn a ring gear ( As it is a type that transmits rotational force by engaging a ring gear, not only does it have a large number of gear parts, but it is inevitable that the sun gear and planetary gear will easily wear out.

In addition, since the pressure of the air discharged from the front discharge port of the air conditioner depends only on the rotation speed of the blowing fan, an unnecessarily large capacity blowing fan had to be installed to increase the blowing pressure.

Republic of Korea Patent Publication No. 10-2017-0010293 (2017.01.26.) Republic of Korea Patent Publication No. 10-2020-0106433 (2020.09.14.)

The present invention was developed to solve the above problems. The purpose of the present invention is to change the discharge flow rate by changing the cross-sectional area of the discharge passage according to air conditioning requirements, and to maintain the discharge passage long and smooth all the way to the front discharge port. The aim is to provide an air conditioner with a variable front discharge port that improves the straight-line inertia of the discharged air and allows it to blow far away, while also allowing the air to be blown far away even if the cross-sectional area of the discharge passage increases.

Another object of the present invention is to provide an air conditioner with a variable front discharge port that can increase discharge pressure compared to an indoor blower fan of the same capacity.

Another object of the present invention is to provide an air conditioner with a variable front outlet that can reduce manufacturing costs and breakdowns by simplifying the driving device of the variable air outlet.

In order to achieve the above object, an air conditioner having a variable front discharge port according to one form of the present invention includes a main body case (2) having a front discharge port (11) for discharging air into the room on the front plate (10); A mounting supporter (100) mounted within the main body case (2); A fixed outer housing coupled to the front of the mounting supporter 100 and having a discharge passage outer housing portion 310 formed around the outer circumference of the discharge passage PG for blowing air toward the front discharge port 11 ( An external housing (200a) including 300); A driving unit 400 installed inside the fixed outer housing 300; It is disposed on the radial inner side of the outer housing portion 310 of the discharge passage, forms an inner circumference of the discharge passage PG, receives power from the driving unit 400, and moves in the forward and backward directions to form the discharge passage PG. ) a discharge passage variable portion (500a) including a movable inner housing (600) that expands or contracts and a door panel (50) that blocks the front of the movable inner housing (600); It is provided with a discharge passage outer housing portion 310, a passage extension portion 310a forming a long upstream extending portion in the axial direction of the discharge passage PG, and a front portion from the passage extension portion 310a. It extends so that its diameter expands as it goes toward the discharge passage (PG), forming a long downstream extending portion in the axial direction of the discharge passage (PG), and its tip coincides with the circumference of the front discharge port (11) and is in close contact with the inner surface of the front plate (10). 310b), and the movable inner housing 600 forms a long discharge passage PG in the axial direction corresponding to the length of the passage extension portion 310a and the passage extension portion 310b and extends from the rear to the front. It includes a front-expandable housing portion 610 that extends so that the diameter smoothly expands without steps as the diameter increases, and in the first position advanced as much as possible forward of the front discharge port 11 by receiving power from the drive unit 400, the discharge passage The cross-sectional area of the flow path (PG) is opened at its widest state, and in the second position, which is maximally retracted toward the front discharge port 11, the cross-sectional area of the flow path (PG) is opened at its narrowest state, and the door panel (50) or the maximum diameter (d) of the front end of the front expandable housing portion 610 is smaller than the diameter (D) of the front discharge port 11, and accordingly, the door panel 50 or the front expandable housing portion 610 ) and the front discharge port 11, a constant open gap G is maintained to allow air to always be discharged in the radial direction.

In the air conditioner according to the present invention, the external housing 200a is fixed to the front inner side of the mounting supporter 100 and extends toward the discharge passage PG, thereby discharging discharge from the upstream side of the discharge passage PG. It further includes a pressure accumulation chamber (CB) accumulating blowing pressure toward the flow path PG and a tunnel forming housing 200 forming an air intake guide portion 210 on an upstream side of the pressure accumulation chamber (CB); The fixed outer housing 300 extends backward, with the rear end of the passage extension portion 310a being fixed to the front end of the tunnel forming housing 200, and the rear end of the passage extension portion 310a having a closed perimeter. The portion 320 extends and protrudes; a fan drive motor 350 accommodated in the rearward extension portion 320 of the fixed outer housing 300 and having an output shaft 352 protruding toward the rear of the rearward extension portion 320; It may further include a blowing fan 360 coupled to the output shaft 352 of the fan drive motor 350 and installed inside the air intake guide portion 210 of the tunnel forming housing 200.

In the air conditioner according to the present invention, the fixed outer housing 300 includes a diffuser forming pipe portion 330 formed at a distance radially inward from the rear end of the flow path extension portion 310a; And a diffuser grill part 340 connected between the diffuser forming pipe part 330 and the flow path extension part 310a with a plurality of partitions; It can be further provided.

In the air conditioner according to the present invention, a bore hole 54 is formed in the center of the door panel 50, and is installed in the fixed outer housing 300 while maintaining a gap inside the rotation drive ring 410. A gear support 440 that is fastened and fixed is provided, and a fixed door panel 60 is fixed to the front of the gear support 440, and the fixed door panel 60 is fastened to the front end of the gear support 440. It may be provided with a fixed mounting plate 62 and a display unit 64 that protrudes forward from the mounting plate 62 and is inserted into the bore hole 54 of the door panel 50.

In the air conditioner according to the present invention, the drive unit 400 includes a ring gear 412 formed on the inner diameter side and a rotation drive ring that transmits the rotational force of the ring gear 412 to the discharge flow path variable part 500a. (410), a drive gear 420 that is inscribed in the ring gear 412 and directly rotates the ring gear 412, the drive gear 420 is installed on the output shaft 432, and the fixed outer housing 300 ), a drive motor 430 fixed to the drive gear 420, and two or more idle gears 422 that are at an equal angle with the drive gear 420 and are inscribed in the ring gear 412 to maintain the rotation center of the rotation drive ring 410. ) may include.

In the air conditioner according to the present invention, a gear support 440 fastened to the fixed outer housing 300 while maintaining a gap inside the rotation drive ring 410; And a linear movement ring 500 that is integrally fixed to the rear end of the movable inner housing 600 and is fitted on the outside of the rotation drive ring 410; It is provided with a plurality of guide shafts 414 protruding outward in the radial direction on the outer periphery of the rotation drive ring 410, and the gear support 440 and the linear movement ring 500, the linear movement ring A first axial guide 446 and a second axial guide 516 are formed to guide the axial sliding movement of 500, and the linear movement ring 500 has the rotation drive ring 410 on its circumference. A diagonal guide groove 514 is formed into which the guide shaft 414 is slidably inserted, and the guide shaft 414 slides the diagonal guide groove 514 by rotation of the rotation drive ring 410. By moving linearly forward and backward as it moves, the movable inner housing 600 can be configured to move linearly forward and backward as one unit.

In the air conditioner according to the present invention, the drive motor 430, the drive gear 420, and the idle gear 422 are configured to be mounted while maintaining a gap inside the rotation drive ring 410. It is provided with a gear support 440 that is fastened and fixed to the fixed outer housing 300, and both axial sides of the two or more idle gears 422 are connected to the outer housing 200a and the gear support 440. It is rotatably supported in close contact with the axial direction, and one side of the drive gear 420 mounted on the drive motor 430 is rotatably supported in close contact with the gear support 440 in the axial direction. configuration can be adopted.

An air conditioner according to another form of the present invention includes a main body case (2) having a front discharge port (11) for discharging air into the room on the front plate (10); A mounting supporter (100) mounted within the main body case (2); A fixed outer housing coupled to the front of the mounting supporter 100 and having a discharge passage outer housing portion 310 formed around the outer circumference of the discharge passage PG for blowing air toward the front discharge port 11 ( An external housing (200a) including 300); A driving unit 400 installed inside the front of the fixed outer housing 300; And a movable inner housing 600 forming the inner circumference of the discharge passage PG by maintaining a gap in the radial direction on the front inner side of the fixed outer housing 300, and the front of the movable inner housing 600. It includes a blocking door panel 50, receives the rotational force of the driving unit 400, converts it into linear movement in the forward and backward directions, and advances the front discharge port 11 to open the discharge passage PG to its widest state. A discharge flow path variable portion 500a that moves within a range of a first position advanced as much as possible and a second position moved backward to the narrowest open state; The drive unit 400 includes a ring gear 412 formed on the inner diameter side and a rotation drive ring 410 that transmits the rotational force of the ring gear 412 to the discharge passage variable part 500a, A drive gear 420 is inscribed in the ring gear 412 and directly rotates the ring gear 412, and the drive gear 420 is installed on the output shaft 432 and fixed to the fixed outer housing 300. It includes a motor 430 and two or more idle gears 422 that form an equal angle with the drive gear 420 and are inscribed in the ring gear 412 to maintain the center of rotation of the rotation drive ring 410. can do.

Here, a gear support 440 fastened to the fixed outer housing 300 while maintaining a gap inside the rotation drive ring 410; And a linear movement ring 500 that is integrally fixed to the rear end of the movable inner housing 600 and is fitted on the outside of the rotation drive ring 410; It is provided with a plurality of guide shafts 414 protruding outward in the radial direction on the outer periphery of the rotation drive ring 410, and the gear support 440 and the linear movement ring 500, the linear movement ring A first axial guide 446 and a second axial guide 516 are formed to guide the axial sliding movement of 500, and the linear movement ring 500 has the rotation drive ring 410 on its circumference. A diagonal guide groove 514 is formed into which the guide shaft 414 is slidably inserted, and the guide shaft 414 slides the diagonal guide groove 514 by rotation of the rotation drive ring 410. By moving linearly forward and backward as it moves, the movable inner housing 600 can be configured to move linearly forward and backward as one unit.

In addition, in a configuration for mounting the drive motor 430, the drive gear 420, and the idle gear 422, the fixed outer housing 300 is provided while maintaining a gap inside the rotation drive ring 410. It is provided with a gear support 440 that is fastened and fixed to, and both axial sides of the two or more idle gears 422 are in close contact in the axial direction between the external housing 200a and the gear support 440. It is rotatably supported, and one side of the drive gear 420 mounted on the drive motor 430 can be configured to be rotatably supported by being in close contact with the gear support 440 in the axial direction.

In addition, the external housing 200a is fixed to the front inner side of the front plate 10 and extends toward the discharge passage PG, thereby blowing air toward the discharge passage PG from the upstream side of the discharge passage PG. It further includes a pressure accumulation chamber (CB) for accumulating pressure and a tunnel forming housing 200 forming an air intake guide portion 210 on an upstream side of the pressure accumulation chamber (CB), wherein the fixed outer housing 300 includes the While it is fixed to the front end of the tunnel forming housing 200, a rearward extension part 320 with a closed circumference extends and protrudes from the rear side of the discharge passage outer housing part 310, and the fixed outer housing 300 A fan drive motor 350 accommodated in the rearward extension portion 320 and the output shaft 352 protruding toward the rear of the rearward extension portion 320 is coupled to the output shaft 352 of the fan drive motor 350. It may further include a blowing fan 360 installed inside the air intake guide part 210 of the tunnel forming housing 200.

In addition, the discharge passage outer housing portion 310 of the fixed outer housing 300 includes a passage extension portion 310a that forms a long upstream extending portion in the axial direction of the discharge passage PG, and an extension of the discharge passage PG. The diameter extends forward from the portion 310a to form a long downstream extension portion in the axial direction of the discharge passage PG, and the tip coincides with the circumference of the front discharge port 11 to form an inner surface of the front plate 10. It includes a flow path expansion portion (310b) in close contact with; The movable inner housing 600 forms a discharge passage PG that is long in the axial direction corresponding to the length of the passage extension portion 310a and the passage expansion portion 310b of the discharge passage outer forming housing portion 310. It includes a front-expandable housing portion 610 whose diameter extends smoothly from the rear to the front so as to extend without any steps, and is moved forward as much as possible to the front discharge port 11 in a first position by receiving power from the drive unit 400. In the second position, which is maximally backward toward the front discharge opening 11, the cross-sectional area of the discharge passage PG is opened to the widest, and the cross-sectional area of the discharge passage PG is opened to the narrowest; The maximum diameter (d) of the front end of the door panel 50 or the front expandable housing portion 610 is smaller than the diameter (D) of the front discharge port 11, and accordingly, the door panel 50 or the front expandable housing portion 610 A always-open gap (G) that allows air to always be discharged in the radial direction is maintained between the unit 610 and the front discharge port 11.

In addition, the fixed outer housing 300 includes a diffuser forming pipe portion 330 formed at a distance radially inward from the rear end portion of the discharge passage outer housing portion 310; And a diffuser grill part 340 connected between the diffuser forming pipe part 330 and the discharge passage outer housing part 310 with a plurality of partitions; It can be further provided.

In addition, a bore hole 54 is formed in the center of the door panel 50, and a gear support 440 is fastened to the fixed outer housing 300 while maintaining a gap inside the rotation drive ring 410. ) is provided, and a fixed door panel 60 is fixed to the front of the gear support 440, and the fixed door panel 60 has a mounting plate 62 fastened to the front of the gear support 440. A display unit 64 may be provided that protrudes forward from the mounting plate 62 and is inserted into the bore hole 54 of the door panel 50.

According to the air conditioner having a variable front discharge port according to the present invention, the passage cross-sectional area is long and smooth along the axial direction between the passage extension portion 310a and the passage extension portion 310b and the front extended housing portion 610. Since (AC) forms a uniform discharge path (PG), the air is accelerated through a uniform and stable flow in the process of passing through the long section of the discharge path (PG) before reaching the front discharge port (11) and proceeds (proceeds) straight. ) Inertia increases, and as a result, the main stream of discharged air is maintained far after leaving the front discharge port 11, allowing it to reach even more distant points. Therefore, the air conditioning effect for the entire room can be achieved quickly.

In addition, according to the air conditioner having a variable front discharge port according to the present invention, before the air sucked by the blower fan 360 reaches the discharge passage PG, the rearward extension of the housing portion 310 forming the outer discharge passage The pressure is increased by being pressurized in the pressure accumulation chamber (CB) secured by (320) and the pressure chamber unit 220, and the air with increased pressure can pass through the narrow discharge passage (PG) and be discharged to the front discharge port (11). Even if the blower fan 360 of the same capacity is driven at the same number of rotations, the speed of the air passing through the discharge passage (PG) can be increased to allow it to reach a greater distance, while the air conditioning efficiency can be improved by increasing the discharge flow rate per unit time. It can be increased.

In addition, according to the air conditioner having a variable front discharge port according to the present invention, even when the cross-sectional area of the discharge passage (PG) is maximized, the discharge passage (PG) is long in the axial direction and the cross-sectional area (AC) of the discharge passage (PG) is long in the axial direction. ) can be maintained in a uniform state, the flow of blown air can be maintained in a uniform and stable state, and straight-line inertia can be maintained almost as is.

In addition, by the combination of the pressure accumulation chamber (CB) and the discharge passage (PG) as described above, the burden on the blowing fan 360 is reduced compared to the prior art even when the cross-sectional area of the discharge passage (PG) is maximized, and the blowing pressure is increased. It is possible to sufficiently maintain the straight-line inertia, and as a result, the discharge air reaches a distant point, allowing the desired air conditioning effect to be achieved early.

In addition, the outer housing 200a is divided into a tunnel forming housing 200 and a fixed outer housing 300 and connected long in the axial direction, and a rearward extension with a closed circumference is formed at the rear of the fixed outer housing 300. By the configuration provided with (320), not only can the discharge passage (PG) be secured long, but the pressure accumulating chamber (CB) can be secured structurally, and its manufacturing and assembly can be performed simply and easily.

In addition, in order to eliminate the disadvantages of severe wear and shortened lifespan of the sun gear as the sun gear engages and drives three or more planetary gears like a conventional planetary gear set, the air conditioner having a variable front discharge port according to the present invention is equipped with a sun gear. By eliminating the need to drive only one ring gear 412 through one drive gear 420, wear of the drive gear 420 can be reduced, its lifespan can be extended, the number of gear parts can be reduced, and manufacturing costs can be reduced. It can be lowered.

Figure 1 is a perspective view of the exterior of an air conditioner according to the present invention when the door panel is fully advanced.
Figure 2 is a perspective view of the exterior of the air conditioner according to the present invention when the door panel is retracted to the maximum.
Figure 3 is a perspective view of a variable front outlet device of an air conditioner according to the present invention.
Figure 4 is an exploded perspective view showing the variable front outlet device of the air conditioner according to the present invention as seen from one direction.
Figure 5 is an exploded perspective view showing the variable front outlet device of the air conditioner according to the present invention as seen from the opposite direction of Figure 4.
Figure 6 is an enlarged view of the main part of Figure 4.
FIG. 7 is an enlarged view of the main part of FIG. 5 (a view viewed from the opposite side of FIG. 6).
FIG. 8 is a plan cross-sectional view taken along line I-I of FIG. 3.
Figure 9 is a side cross-sectional view taken along line II-II in Figure 3.
FIG. 10 is a view showing a state in which the movable inner housing and the door panel in FIG. 9 are advanced as much as possible.
FIG. 11 is a cross-sectional view taken along line III-III in FIG. 9.

Hereinafter, a specific example of an air conditioner having a variable front discharge port of the present invention will be described with reference to the accompanying drawings.

Figures 1 and 2 are perspective views showing the appearance of the air conditioner according to the present invention. Figure 1 shows the door panel fully advanced (maximum open), and Figure 2 shows the door panel fully retracted. The state (minimum open) is shown;

First, the air conditioner shown in Figures 1 and 2 is an indoor unit in which the main body case 2 is installed in an air conditioning space. Inside it, there is an indoor heat exchanger that acts as an evaporator during cooling, and the air that passes through the indoor heat exchanger is transported indoors. A blowing fan is provided for blowing air.

The main body case 2 is a so-called 'stand-type air conditioner' in which the front plate 10, the side plate 12, the back plate 14, the bottom plate 16, and the top plate 18 are erected in a roughly square pillar shape. It is illustrating.

In particular, the front panel 10 is formed with a front discharge port 11 that discharges air into the room.

The side plate 12 may be configured to further include a side discharge port for discharging air to the side. In this case, the side discharge port can be opened and closed by opening and closing the discharge port door 13.

A filter may be installed on the back plate 14 of the main case 2, and indoor air passes through the filter of the back plate 14, enters the inside of the main case 2, and exchanges heat while passing through the indoor heat exchanger. It is discharged indoors through the front discharge port (11).

A door panel 50 is installed inside the front discharge port 11, and this door panel 50 can be moved in the forward and backward directions by a driving device.

A fixed door panel 60 may be installed in the central portion of the door panel 50. This fixed door panel 60 is fixed without moving in the front or rear direction. This fixed door panel 60 can be used as a display unit that displays air conditioning temperature, indoor temperature, driving status, etc.

In the present invention, between the front discharge port 11 and the door panel 50, a constant open gap G (see FIG. 9) is always secured in the radial direction when viewed from the front (projected from the front). And, the air blown from the blower fan is always discharged into the room through the secured constant opening gap (G).

For example, as shown in FIG. 1, when the door panel 50 is fully advanced, the radial always-open gap G between the front discharge port 11 and the door panel 50 remains unchanged. However, since the door panel 50 protrudes far forward from the front outlet 11, the front-to-back gap between the door panel 50 and the front outlet 11 widens, while the body portion of the door panel 50 The radial spacing between the and front discharge ports 11 is widened (the flow path is expanded), thereby increasing the amount of air blowing. The state in Figure 1 is called 'maximum open state' or 'first position'.

On the other hand, as shown in FIG. 2, when the door panel 50 is retracted to the maximum, the front-to-back gap between the door panel 50 and the front discharge port 11 is narrowed to a minimum, but the door panel 50 Since the normally open gap (G) is maintained in the radial direction between the and front discharge ports (11), a minimum amount of air can be discharged through the normally open gap (G). The state in Figure 2 is called 'minimum open state' or 'second position'.

1 and 2, the front panel 10 may be further provided with an operating unit 30. The operating unit 30 can be configured as a button type or a touch panel type. The user can input various commands such as air conditioning temperature setting and on/off through the control unit 30.

Next, Figure 3 shows a perspective view of the variable front outlet device of the air conditioner according to the present invention.

Referring to FIG. 3, the front discharge device includes a mounting supporter 100 forming a frame mounted within the main body case 2, an external housing 200a fixed to the mounting supporter 100, and an external housing 200a. It includes a discharge passage variable part 500a that is installed to be movable forward and backward to expand or reduce the discharge passage.

The mounting supporter 100 includes an upper support portion 120. The outer housing 200a is made of one housing or is divided into a tunnel forming housing 200 and a fixed outer housing 300 as shown, and the tunnel forming housing 200 is coupled to the upper support 120 and fixed, and the upper The fixed outer housing 300 may be coupled to the support portion 120 with a fastening ring 222 and a fastening protrusion 312.

The discharge flow path variable portion 500a includes the door panel 50 described above. The door panel 50 forms a fixed outer housing 300 and a discharge passage PG. The front end of the fixed outer housing 300 has approximately the same diameter as the front discharge port 11 described above, and is fixed to the inner surface of the front plate 10 in close contact with the circumference of the front discharge port 11.

The fixed door panel 60 is fixed to the external housing 200a.

Next, Figures 4 to 7 are exploded perspective views of the variable front outlet device of the air conditioner according to the present invention. Figure 4 shows the front outlet device as seen from one direction, and Figure 5 shows the front outlet device. A view of the front discharge device viewed from the opposite direction of FIG. 4 is shown, FIG. 6 shows an enlarged view of the main part of FIG. 4, and FIG. 7 shows an enlarged view of the main part of FIG. 5. In addition, FIG. 8 shows a plan cross-sectional view taken along line I-I of FIG. 3, and FIG. 9 shows a side cross-sectional view taken along line II-II of FIG. 3.

The variable front discharge device of the present invention will be described in more detail with reference to FIGS. 4 to 9.

First, referring to FIGS. 4 and 5, the variable front discharge device includes the above-described mounting supporter 100, an external housing 200a, and a discharge path variable portion 500a, while the discharge path variable portion 500a It further includes a driving unit 400 as a driving device for moving forward and backward.

The outer housing 200a includes a tunnel forming housing 200 and a fixed outer housing 300.

The drive unit 400 includes a rotation drive ring 410, a drive gear 420 and an idle gear 422, a drive motor 430, and a gear support 440.

The discharge flow path variable portion 500a includes a linearly movable ring 500, a movable inner housing 600, a door panel 50, and a fixed door panel 60.

Let's look at fixed elements and movable elements separately.

In this specification, a fixed element refers to an element that is fixed without moving in any direction, or can rotate in place but does not move (moves) in the forward or backward direction (axial direction). In other words, it refers to an element that does not move in the forward or backward direction.

In comparison, movable elements refer to elements that move in the forward and backward directions.

The fixing elements include a mounting supporter 100, a tunnel forming housing 200, a fixed outer housing 300, a rotation drive ring 410, a drive motor 430, a drive gear 420, an idle gear 422, and a gear. A support bar 440, and a fixed door panel 60.

The movable elements are a linearly moving ring 500, a movable inner housing 600, and a door panel 50.

With reference to FIGS. 4 and 5, the schematic coupling relationship between the fixed element and the movable element will first be described, and the detailed structure will be described later.

The mounting supporter 100 is fastened and fixed inside the main body case 2 using means such as brackets or screws (or bolts). The tunnel forming housing 200 of the external housing 200a is fixed in front of the mounting supporter 100, and the fixed outer housing 300 is coupled and fixed to the tunnel forming housing 200 in front.

A drive motor 430 is mounted on the fixed outer housing 300, and a drive gear 420 is installed on the drive motor 430. Two or more idle gears 422 are disposed at an equal angle with the drive gear 420. Two or more idle gears 422 are installed so that their sides are in close contact with the fixed outer housing 300 and can rotate in place.

A ring gear 412 is formed inside the rotation drive ring 410, and the drive gear 420 and the idle gear 422 are inscribed and engaged with this ring gear 412. Therefore, the rotation drive ring 410 rotates by receiving the driving force of the drive gear 420 while being centered by the drive gear 420 and the idle gear 422.

A gear support 440 is installed in front of the rotation drive ring 410, drive gear 420, and idle gear 422. This gear support 440 is coupled to the fixed outer housing 300 while rotatably contacting the front sides of the rotation drive ring 410, drive gear 420, and idle gear 422. Therefore, the rotation drive ring 410, the drive gear 420, and the idle gear 422 are in close contact with (or in contact with) the fixed outer housing 300 and the gear support 440 in a rotatable state on both front and rear sides. It just rotates in place. Ultimately, the rotation drive ring 410, drive gear 420, and idle gear 422 are rotatably maintained between the fixed outer housing 300 and the gear support 440.

A fixed door panel 60 is fixed to the front of the gear support 440 by a fastener such as a screw.

A guide shaft 414 is formed on the outer periphery of the rotational drive ring 410, and a diagonal guide groove 514 is formed on the linear movement ring 500. The linear movement ring 500 is fitted into the outer periphery of the rotation drive ring 410, and at the same time, the guide shaft 414 is fitted into the diagonal guide groove 514. At the same time, the linear movement ring 500 is coupled to the gear support 440 so as to be guided so that it can only move in the axial direction. In addition, the linear movement ring 500 is integrated by being coupled to the inside of the movable inner housing 600. A fixed door panel 60 is coupled to the front end of the movable inner housing 600.

Therefore, as the rotary drive ring 410 rotates in place, its guide shaft 414 slides in the diagonal guide groove 514, pushing or pulling the linear movement ring 500 forward and backward. Since the linear movement ring 500 is coupled to the gear support 440 so that it can only move in the axial direction, it does not rotate but moves in the forward and backward directions. In this way, the amount of protrusion is adjusted as the linear moving ring 500 and the movable inner housing 600 and door panel 50 integrated with it move in the front and rear directions, and the front discharge port 11 and the discharge passage are accordingly adjusted. The opening degree of (PG) is adjusted.

4 to 5 and 8 to 9, the mounting supporter 100 has a lower support portion 110 and an upper support portion 120. The lower support portion 110 is fastened to the inner frame of the main body case 2 using bolts or other means. The lower support portion 110 supports the bottom of the tunnel forming housing 200.

A housing support part 130 is formed in the upper support part 120, and an axial coupling groove 132 is formed in the housing support part 130.

The tunnel forming housing 200 has an air intake guide portion 210 and a pressure chamber portion 220. An axial coupling rib 212 is formed on the air intake guide portion 210.

The air intake guide portion 210 and the axial coupling rib 212 of the tunnel forming housing 200 are respectively fitted into the housing support portion 130 and the axial coupling groove 132 of the mounting supporter 100. The inserted axial coupling rib 212 is fastened and fixed to the inner end of the axial coupling groove 132 using a screw or other means.

And the fixed door panel 60 has a mounting plate 62 and a display portion 64 protruding forward from the mounting plate 62. A fastening boss 66 is formed on the mounting plate 62.

Inside the display unit 64, a printed circuit board for driving the display unit 64 may be installed. This fixed door panel 60 is fixed by fastening its fastening boss 66 to the gear support 440 described above using a screw or other means.

A fixed outer housing 300 is coupled to the front of the tunnel forming housing 200. A fastening ring 222 and a fastening protrusion 312 are formed on the tunnel forming housing 200 and the fixed outer housing 300, and when the fixed outer housing 300 is coupled from the front of the tunnel forming housing 200, the fastening ring is used. (222) and the binding protrusion 312 are coupled, for example, in a snap-fit manner.

Next, with reference to FIGS. 6 to 11 , the external housing 200a, the drive unit 400, and the discharge path variable unit 500a will be described in more detail.

The fixed outer housing 300 includes a discharge passage outer housing portion 310 that forms the outer circumference of the discharge passage PG. At the rear of the discharge flow path outer housing portion 310, a rearward extension portion 320 whose circumference is closed extends and protrudes.

A fan driving motor 350 is accommodated inside the rearward extension portion 320 of the fixed outer housing 300. An output shaft 352 is provided rearward from the fan drive motor 350 and protrudes rearwardly through the rearward extension portion 320. A blowing fan 360 is mounted on the output shaft 352.

A motor mounting portion 314 is formed forward on the rearward extension portion 320 of the fixed outer housing 300. The housing of the drive motor 430 is fastened to the motor mounting portion 314 by means of screws or the like. The output shaft 432 of the drive motor 430 protrudes forward, and the drive gear 420 is mounted on this output shaft 432.

In addition, two or more (three in the embodiment shown in the drawing) gear support shafts 316 are formed in the rearward extension portion 320 of the fixed outer housing 300 by maintaining equal angles on the same circular diameter. The rear side of the idle gear 422 is rotatably inserted into the gear support shaft 316.

A rotation drive ring 410 is fitted on the outside of the drive gear 420 and the idle gear 422. Accordingly, the drive gear 420 and the idle gear 422 are internally engaged with the ring gear 412 of the rotation drive ring 410.

The drive gear 420 serves as a drive gear that directly drives the rotation drive ring 410. The idle gear 422 maintains the center of the rotation drive ring 410 while idling and makes rotation smooth.

The gear support 440 has a coupling portion 442, and a coupling boss 442a is formed on the coupling portion 442. In addition, a support plate portion 444 is formed in front of the coupling portion 442, and a gear support shaft 444a is formed on this support plate portion 444.

In response to the coupling portion 442 of the gear support 440, a coupling boss 320a is formed on the rearward extension portion 320 of the fixed outer housing 300.

Accordingly, the coupling boss 442a of the gear support 440 is fastened to the coupling boss 320a of the fixed outer housing 300 by means of a screw or the like. At this time, the gear support shaft 444a adheres to the front sides of the drive gear 420 and the idle gear 422 and supports them in a rotatable state.

The rotation drive ring 410 is maintained in a rotatable state between the support plate portion 444 of the gear support 440 and the rearward extension portion 320 of the fixed outer housing 300.

A plurality of first axial guides 446 are formed on the outer periphery of the support plate portion 444 of the gear support 440.

On the other hand, the linear movement ring 500 has a cylindrical portion 510 and a flange portion 512. The plurality of diagonal guide grooves 514 described above are formed in the cylindrical portion 510. A second axial guide 516 is formed on the inner peripheral surface between the plurality of diagonal guide grooves 514. The first axial guide 446 of the gear support 440 is coupled to the second axial guide 516 to enable sliding movement in the axial direction.

Therefore, when the guide shaft 414 is rotated by the rotation drive of the rotation drive ring 410, the guide shaft 414 tries to slide within the diagonal guide groove 514 of the linear movement ring 500. The linear movement ring 500 is coupled so that its second axial guide 516 can slide only in the axial direction by the first axial guide 446 of the gear support 440. Accordingly, rotation of the guide shaft 414 acts to push the diagonal guide groove 514 forward or pull it backward. Accordingly, the second axial guide 516 of the linear movement ring 500 slides forward and backward in the axial direction under the guidance of the first axial guide 446.

The linear movement ring 500 is inserted from the front to the rear of the movable inner housing 600 and then fastened into the movable inner housing 600.

The movable inner housing 600 includes a front-expandable housing portion 610. A flange mounting portion 612 is formed on the inner periphery of the front-extended housing portion 610 to allow the flange portion 512 of the linear movement ring 500 fitted from the front to be caught and seated. A fastening hole 512a is formed in the flange portion 512 of the linear moving ring 500, and a fastening boss 612a is formed in the movable inner housing 600.

Therefore, when the linear movement ring 500 is inserted in the front of the movable inner housing 600, the flange portion 512 of the linear movement ring 500 is caught and seated on the flange mounting portion 612 of the movable inner housing 600. do. In this state, the fastening boss 612a and the fastening hole 512a are aligned and fixed by fastening means such as a screw. Accordingly, the linear movement ring 500 and the movable inner housing 600 are integrated and can move together in the forward and backward directions.

Next, in the external housing 200a according to the present invention, the discharge passage outer housing portion 310 of the fixed outer housing 300 is, as its name suggests, a discharge passage (PG) for blowing air toward the front discharge opening 11. ) forms the ‘outer perimeter’ of

As shown in FIGS. 6 to 9, especially FIGS. 8 to 9, the discharge passage outer housing portion 310 is a passage that forms the ‘axially long upstream extending portion’ of the discharge passage PG. It includes an extension part 310a and a flow path extension part 310b that extends so that its diameter expands forward from the flow path extension part 310a, thereby forming an 'axially long downstream extension part' of the discharge flow path PG. do. The tip of the flow path expansion portion 310b matches the circumference of the front discharge port 11 and is in close contact with the inner surface of the front plate 10.

Correspondingly, the front-extended housing portion 610 of the movable inner housing 600 has a length corresponding to the length of the flow path extension portion 310a and the flow path extension portion 310b, and the flow path extension portion 310a and are disposed at a distance equal to the discharge passage PG in the radial direction of the passage expansion portion 310b. In addition, the front-extended housing portion 610 is formed in a form that extends so that its diameter expands from the rear to the front, corresponding to the shapes of the flow path extension portion 310a and the flow path expansion portion 310b. A preferred form in which the front-expandable housing portion 610 expands in diameter from the rear to the front is to extend the diameter so that it 'smoothly expands' without steps (or bends) from the rear to the front.

In the embodiment shown in the drawing, the boundary point of the flow path extension portion 310a and the flow path expansion portion 310b is configured in an angled shape, but the flow path extension portion 310a and the flow path expansion portion 310b are forward-extendable housings. Like the extended form of the portion 610, the diameter can be configured to smoothly expand from the rear to the front without any prominent boundaries.

Similarly, when the boundary point of the flow path extension portion 310a and the flow path expansion portion 310b is configured in an angled shape, the front extended housing portion 610 extends the flow path in the section facing the flow path extension part 310a. The section facing the portion 310b may be configured in an angled shape.

By the above configuration, between the passage extension portion 310a and the passage extension portion 310b and the front extended housing portion 610, the passage cross-sectional area ( A discharge passage (PG) in the form of a circular ring with a uniform AC is formed.

In this way, if the discharge passage (PG) is formed with a long axial length and a uniform passage cross-sectional area (AC) according to the present invention, the air flows uniformly and stably over a long section before reaching the front discharge port (11). While accelerating through the air, the so-called straight-forward (progress) inertia, which tries to continue moving in the direction of progress, increases. As the straight-line inertia or forward inertia increases, the main stream of discharged air is maintained for a long distance after leaving the front discharge port 11, allowing it to reach farther points. Therefore, the air conditioning effect for the entire room can be quickly achieved.

In addition, referring to Figures 8 and 9, looking at the above-mentioned 'normally open gap (G)', the maximum diameter of the front end of the door panel 50 or the front extended housing portion 610 is referred to as 'd', When the diameter of the front discharge port 11 is 'D', the maximum diameter (d) of the front end of the door panel 50 or the front extended housing portion 610 is greater than the diameter (D) of the front discharge port 11. It consists of an operating diameter.

Accordingly, a 'normally open gap (G)' is secured and maintained in the radial direction between the door panel 50 or the front extended housing portion 610 and the front discharge port 11.

Through this normally open gap (G), air can be discharged through the front discharge port 11 even when the movable inner housing 600 is maximally retracted to the second position (state of FIGS. 8 and 9).

Meanwhile, in the previous description, the fixed outer housing 300 was described as having a diffuser forming pipe portion 330 and a diffuser grill portion 340.

The diffuser forming pipe portion 330 is formed at a distance radially inward from the rear end portion of the passage extension portion 310a.

The diffuser grill part 340 is formed by connecting the diffuser forming pipe part 330 and the flow path extension part 310a with a plurality of partitions, and the air is rectified while passing through the passage between each partition.

The diffuser forming pipe portion 330 may be configured to accommodate the rear end portion of the front-extended housing portion 610 of the movable inner housing 600. That is, the front-extending housing portion 610 enters the diffuser forming pipe portion 330 and is accommodated at the second position. Of course, the determination of the first position (maximum forward (protruding) position) and the second position (maximum backward (retreating) position) of the movable inner housing 600 is determined by the diagonal guide groove 514 of the above-described linear movement ring 500. ) is achieved by the twist angle and length. By adopting a configuration in which the front-expandable housing part 610 is accommodated inside the diffuser forming pipe part 330, the width of the variable front discharge port in the front and rear directions can be reduced, thereby improving space utilization inside the main body case 2. can increase.

Next, the external housing 200a was described as further including a tunnel forming housing 200 fixed to the front inner side of the mounting supporter 100.

The tunnel forming housing 200 includes an air intake guide portion 210 that is inserted and fixed into the upper support portion 120 of the mounting supporter 100, and extends forward from the air intake guide portion 210 to form the fixed outer housing. It is provided with a pressure chamber part 220 coupled to the rear end of (300).

In addition, the fixed outer housing 300 has a rearward extension portion 320 extending rearward from the rear end of its passage extension portion 310a and protruding. A fan driving motor 350 is accommodated inside this backward extension part 320, and a blowing fan 360 is installed on the output shaft 352 facing backward from the fan driving motor 350. This blowing fan 360 is located inside the air intake guide part 210 of the tunnel forming housing 200.

The rearward extension portion 320 preferably has a closed configuration so that air cannot pass through except for the portion where the output shaft 352 of the blowing fan 360 passes through, which has a closed circumference.

The blowing fan 360 is preferably configured as a so-called 'slow flow fan' or 'circulator'.

In this way, the tunnel forming housing 200 can increase the suction power of the blowing fan 360 by disposing the long air intake guide part 210 on the outer periphery of the blowing fan 360.

In addition, the pressure chamber portion 220 extends long in front of the air intake guide portion 210, while the backward extension portion 320 of the discharge passage outer forming housing portion 310 extends toward the discharge passage outer forming housing portion 310. By having a structure that protrudes rearward and is blocked, an accumulating pressure chamber (CB) that accumulates blowing pressure is formed on the upstream side of the discharge passage (PG).

Therefore, the air sucked in by the blower fan 360 is pressurized into the large space accumulating chamber (CB), thereby increasing the pressure, and the air with the increased pressure passes through the narrow discharge passage (PG) and is discharged to the front discharge port (11). You can. Accordingly, even if the blower fan 360 of the same capacity is driven at the same rotation speed, the speed of the air passing through the discharge passage (PG) can be increased to allow it to reach a greater distance, and the air conditioning efficiency can be increased by increasing the discharge flow rate per unit time. can be increased.

As shown in FIG. 9, when the movable inner housing 600 of the discharge path variable portion 500a is retracted as much as possible and is in the second position, the radial width AC1 of the discharge path PG is at its narrowest, thereby discharging. The cross-sectional area of the flow path (PG) is maintained in the narrowest open state.

As shown in FIG. 10, when the movable inner housing 600 of the discharge passage variable portion 500a is advanced as much as possible and is in the first position, the radial width AC2 of the discharge passage PG becomes wide, thereby The cross-sectional area of the (PG) channel is maintained in the widest open state. That is, according to the present invention, the discharge passage outer housing portion 310 is composed of an axially long passage extension portion 310a and a passage expansion portion 310b, and the front extension type housing of the movable inner housing 600 Since the part 610 is configured to extend so that its diameter expands from the rear to the front, the radial width (AC) of the discharge passage (PG) gradually expands as the front-expandable housing part 610 moves forward. It will be done.

In this way, when the front expandable housing part 610 moves to the first position and the radial width (AC) of the discharge passage (PG) is maximized, that is, in the AC2 state, the passage cross-sectional area is maximized and the blowing volume is maximized. It can be increased by . In order to increase the blowing amount more clearly at the second position, control to increase the rotation speed of the blowing fan 360 can be performed.

Even in this state where the cross-sectional area of the discharge passage (PG) is expanded to the maximum, the present invention can maintain a uniform flow passage cross-sectional area (AC) while the discharge passage (PG) is long in the axial direction, thereby blowing The flow of air can be maintained in a uniform and stable state, and the straight-line (progress) inertia can be maintained almost the same. In addition, in order to pressurize the air drawn in by the blowing fan 360 before it reaches the discharge passage PG, the rearward extension portion 320 of the housing portion 310 forming the outer discharge passage and the pressure chamber portion 220 are configured. It is equipped with a pressure accumulation chamber (CB) secured by , so the blowing pressure can be increased. Through this combined action, it is possible to sufficiently maintain the blowing pressure and straight-line inertia while reducing the burden on the blower fan 360 compared to the prior art even when the cross-sectional area of the discharge flow path (PG) is maximized, and thus the discharge As the air reaches distant points, the desired air conditioning effect can be achieved early.

The movable inner housing 600 can be moved to only two points, the first and second positions, and can be moved to any point between the first and second positions by controlling the rotation angle of the drive motor 430. It can also be placed in .

Meanwhile, in the process of moving the movable inner housing 600 forward and backward by the drive motor 430, as shown in FIG. 11, the rotational force of the drive gear 420 is generated by driving the drive motor 430. It is transmitted to the ring gear 412 and the rotation drive ring 410 rotates.

Two or more idle gears 422 maintain the center of the rotation drive ring 410 while idling without transmitting driving force.

In this way, in the present invention, in order to eliminate the disadvantages of severe wear and shortened lifespan of the sun gear as the sun gear engages and drives three or more planetary gears simultaneously like a conventional planetary gear set, the sun gear is excluded and a single drive gear 420 is used. By configuring it so that only one ring gear 412 needs to be driven, wear of the drive gear 420 can be reduced and the lifespan can be extended (for reference, drive gears and sun gears have a small diameter and few teeth, whereas ring gears have a diameter Because the teeth are large and have many teeth, the number of contacts per tooth during operation is much greater than that of a drive gear or sun gear, and as a result, wear occurs easily.) In addition, by excluding the sun gear and configuring one drive gear to directly drive the ring gear 412, the number of gear parts can be reduced, thereby lowering the manufacturing cost.

In addition, the ring gear 412 does not receive rotational force by three planetary gears, but receives rotational force through one drive gear 420, and the two or more idle gears 422 engage and rotate without transmitting driving force. Therefore, wear of the idle gear 422 can be reduced.

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.

2: Main body case
10: Front panel
11: Front outlet
12: side plate
13: Side outlet door
14: back plate
16: Bottom plate
18: Top plate
30: Control panel
50: Movable door panel
60: fixed door panel
100: Mounted supporter
200a: external housing
200: Housing for forming tunnel
300: Fixed outer housing
310: Discharge passage outer housing portion
310a: Euro extension part
310b: Euro expansion section
320: backward extension
330: Diffuser forming tube
340: Diffuser grill part
350: Fan driving motor
360: blowing fan
400: driving part
410: Rotation drive ring
412: Ring gear
414: Guide axis
420: drive gear
422: idle gear
430: Drive motor
440: gear support
446: First axial guide
500a: straight moving part
500: Linear movement ring
510: cylindrical part
514: diagonal guide groove
516: Second axial guide
600: Movable inner housing
610: Front expandable housing part
D, d: diameter
G: Regular opening interval

Claims (14)

A main body case (2) having a front discharge port (11) on the front plate (10) for discharging air into the room;
A mounting supporter (100) mounted within the main body case (2);
A fixed outer housing coupled to the front of the mounting supporter 100 and having a discharge passage outer housing portion 310 formed around the outer circumference of the discharge passage PG for blowing air toward the front discharge port 11 ( An external housing (200a) including 300);
A driving unit 400 installed inside the fixed outer housing 300; and
It is disposed on the radial inner side of the discharge passage outer forming housing portion 310, forms an inner circumference of the discharge passage PG, and moves in the forward and backward directions under the power of the driving unit 400 to form the discharge passage PG. A discharge passage variable portion (500a) including a movable inner housing 600 that expands or contracts and a door panel 50 that blocks the front of the movable inner housing 600; Equipped with
The discharge passage outer housing portion 310 includes a passage extension portion 310a that forms a long upstream extending portion in the axial direction of the discharge passage PG, and a diameter that increases forward from the passage extension portion 310a. It extends to expand to form a long downstream extending portion in the axial direction of the discharge passage (PG), and includes a passage expansion portion (310b) whose tip coincides with the circumference of the front discharge port (11) and is in close contact with the inner surface of the front plate (10). do,
The external housing 200a is fixed to the front inner side of the mounting supporter 100 and extends toward the discharge passage PG, thereby providing blowing pressure from the upstream side of the discharge passage PG toward the discharge passage PG. It further includes a pressure accumulating chamber (CB) and a tunnel forming housing 200 forming an air intake guide portion 210 on an upstream side of the accumulating pressure chamber (CB),
The fixed outer housing 300 extends backward, with the rear end of the passage extension portion 310a being fixed to the front end of the tunnel forming housing 200, and the rear end of the passage extension portion 310a having a closed perimeter. The portion 320 extends and protrudes,
A fan drive motor 350 accommodated in the rearward extension part 320 of the fixed outer housing 300 and an output shaft 352 protruding rearward of the rearward extension part 320, and an output shaft of the fan drive motor 350. An air conditioner further comprising a blowing fan (360) coupled to (352) and installed inside the air intake guide portion (210) of the tunnel forming housing (200).
delete According to paragraph 1,
The fixed outer housing 300 is,
A diffuser forming pipe portion 330 formed at a distance radially inward from the rear end portion of the flow path extension portion 310a; and
A diffuser grill part 340 connected between the diffuser forming tube part 330 and the flow path extension part 310a with a plurality of partitions; An air conditioner further comprising:
According to paragraph 1,
A bore hole 54 is formed through the center of the door panel 50,
Inside the bore hole 54, a fixed door panel 60 is installed that is always fixed in place regardless of the forward and backward movements of the movable inner housing 600 and the door panel 50. An air conditioner that uses.
According to paragraph 1,
The driving unit 400,
A ring gear 412 is formed on the inner diameter side and a rotation drive ring 410 that transmits the rotational force of the ring gear 412 to the discharge passage variable portion 500a,
A drive gear 420 that is inscribed in the ring gear 412 and directly rotates the ring gear 412,
A drive motor 430 on which the drive gear 420 is installed on the output shaft 432 and fixed to the fixed outer housing 300,
An air conditioner comprising two or more idle gears 422 that form an equal angle with the drive gear 420 and are inscribed in the ring gear 412 to maintain the center of rotation of the rotation drive ring 410. .
A main body case (2) having a front discharge port (11) on the front plate (10) for discharging air into the room;
A mounting supporter (100) mounted within the main body case (2);
A fixed outer housing coupled to the front of the mounting supporter 100 and having a discharge passage outer housing portion 310 formed around the outer circumference of the discharge passage PG for blowing air toward the front discharge port 11 ( An external housing (200a) including 300);
A driving unit 400 installed inside the fixed outer housing 300; and
It is disposed on the radial inner side of the discharge passage outer forming housing portion 310, forms an inner circumference of the discharge passage PG, and moves in the forward and backward directions under the power of the driving unit 400 to form the discharge passage PG. A movable inner housing (600) that expands or contracts; Equipped with
The driving unit 400,
A ring gear 412 is formed on the inner diameter side and a rotation drive ring 410 that transmits the rotational force of the ring gear 412 to the movable inner housing 600,
A drive gear 420 that is inscribed in the ring gear 412 and directly rotates the ring gear 412,
A drive motor 430 on which the drive gear 420 is installed on the output shaft 432 and fixed to the fixed outer housing 300,
Two or more idle gears 422 that form an equal angle with the drive gear 420 and are inscribed in the ring gear 412 to maintain the center of rotation of the rotation drive ring 410,
A gear support 440 fastened to the fixed outer housing 300 while maintaining a gap inside the rotation drive ring 410,
A linear movement ring (500) is integrally fixed to the rear end of the movable inner housing (600) and is fitted on the outside of the rotation drive ring (410),
A plurality of guide axes 414 are formed to protrude radially outward on the outer periphery of the rotation drive ring 410,
A first axial guide 446 and a second axial guide 516 are formed on the gear support 440 and the linear movement ring 500 to guide the axial sliding movement of the linear movement ring 500. And
The linear movement ring 500 has a diagonal guide groove 514 formed around the circumference of the rotation drive ring 410 into which the guide shaft 414 of the rotation drive ring 410 is slidably inserted, thereby allowing the rotation of the rotation drive ring 410. As the guide shaft 414 slides the diagonal guide groove 514, it moves linearly forward and backward, thereby moving the movable inner housing 600 forward and backward in a straight line. Air conditioner.
A main body case (2) having a front discharge port (11) on the front plate (10) for discharging air into the room;
A mounting supporter (100) mounted within the main body case (2);
A fixed outer housing coupled to the front of the mounting supporter 100 and having a discharge passage outer housing portion 310 formed around the outer circumference of the discharge passage PG for blowing air toward the front discharge port 11 ( An external housing (200a) including 300);
A driving unit 400 installed inside the fixed outer housing 300; and
It is disposed on the radial inner side of the discharge passage outer forming housing portion 310, forms an inner circumference of the discharge passage PG, and moves in the forward and backward directions under the power of the driving unit 400 to form the discharge passage PG. A movable inner housing (600) that expands or contracts; Equipped with
The driving unit 400,
A ring gear 412 is formed on the inner diameter side and a rotation drive ring 410 that transmits the rotational force of the ring gear 412 to the movable inner housing 600,
A drive gear 420 that is inscribed in the ring gear 412 and directly rotates the ring gear 412,
A drive motor 430 on which the drive gear 420 is installed on the output shaft 432 and fixed to the fixed outer housing 300,
It includes two or more idle gears 422 that form an equal angle with the drive gear 420 and are inscribed in the ring gear 412 to maintain the center of rotation of the rotation drive ring 410,
A configuration for mounting the drive motor 430, the drive gear 420, and the idle gear 422,
It is provided with a gear support 440 that is fastened and fixed to the fixed outer housing 300 while maintaining a gap inside the rotation drive ring 410,
Both axial sides of the two or more idle gears 422 are rotatably supported in close contact in the axial direction between the external housing 200a and the gear support 440,
An air conditioner, characterized in that one side of the drive gear 420 mounted on the drive motor 430 is rotatably supported in close contact with the gear support 440 in the axial direction.
delete delete delete A main body case (2) having a front discharge port (11) on the front plate (10) for discharging air into the room;
A mounting supporter (100) mounted within the main body case (2);
A fixed outer housing coupled to the front of the mounting supporter 100 and having a discharge passage outer housing portion 310 formed around the outer circumference of the discharge passage PG for blowing air toward the front discharge port 11 ( An external housing (200a) including 300);
A driving unit 400 installed inside the front of the fixed outer housing 300; and
A gap is maintained in the radial direction on the front inner side of the fixed outer housing 300 to form an inner circumference of the discharge passage PG, and the discharge passage PG is moved forward and backward by the driving unit 400. ) A movable inner housing (600) that expands or contracts; Includes,
The external housing 200a is,
An accumulating pressure chamber (CB) fixed to the front inner side of the front plate 10 and extending toward the discharge passage PG, thereby accumulating blowing pressure from the upstream side of the discharge passage PG toward the discharge passage PG; It further includes a tunnel forming housing 200 forming an air intake guide portion 210 on the upstream side of the pressure accumulation chamber (CB),
The fixed outer housing 300 is fixed to the front end of the tunnel-forming housing 200, while a rearward extension portion 320, the circumference of which is closed, extends and protrudes from the rear side of the discharge passage outer-forming housing portion 310. It is done,
a fan drive motor 350 accommodated in the rearward extension portion 320 of the fixed outer housing 300 and having an output shaft 352 protruding rearward of the rearward extension portion 320;
An air conditioner further comprising a blowing fan 360 coupled to the output shaft 352 of the fan drive motor 350 and installed inside the air intake guide portion 210 of the tunnel forming housing 200. .
According to clause 11,
The discharge passage outer housing portion 310 of the fixed outer housing 300 includes a passage extension portion 310a that forms a long upstream extending portion in the axial direction of the discharge passage PG, and the passage extension portion ( It extends so that its diameter expands forward from 310a) to form a long downstream extension part in the axial direction of the discharge passage (PG), and its tip coincides with the circumference of the front discharge port 11 and is in close contact with the inner surface of the front plate 10. It includes a flow path expansion portion 310b,
The movable inner housing 600 forms a discharge passage PG that is long in the axial direction corresponding to the length of the passage extension portion 310a and the passage expansion portion 310b of the discharge passage outer forming housing portion 310. An air conditioner comprising a front-expandable housing portion 610 that extends so that the diameter smoothly expands from the rear to the front without any steps.
According to clause 11,
The fixed outer housing 300 is,
A diffuser forming pipe portion 330 formed at a distance radially inward from the rear end portion of the discharge passage outer housing portion 310; and
A diffuser grill portion 340 connected between the diffuser forming pipe portion 330 and the discharge passage outer housing portion 310 with a plurality of partitions; An air conditioner further comprising:
According to clause 11,
It is provided with a door panel (50) that blocks the front of the movable inner housing (600),
A bore hole 54 is formed through the center of the door panel 50,
Inside the bore hole 54, a fixed door panel 60 is installed that is always fixed in place regardless of the forward and backward movements of the movable inner housing 600 and the door panel 50. An air conditioner that uses.