KR101506740B1 - air conditioner - Google Patents

Abstract

The present invention relates to an indoor unit of an air conditioner, and it is an object of the present invention to provide an indoor unit of an air conditioner, in which a user does not need to disassemble a front portion of the indoor unit, .

Chassis, discharge grill unit, front panel

Description

Air conditioner

The present invention relates to an indoor unit of an air conditioner.

Generally, an air conditioner is a home appliance that keeps the room in a cooling or heating state through heat exchange between a refrigerant and air.

The air conditioner can be divided into a separate type in which the indoor unit and the outdoor unit are provided as separate products, and an integral type which is integrally provided. The indoor unit may be divided into a top-mounted type installed on the bottom surface of the installation space and a wall-mounted type attached to the wall surface.

The wall-mounted type indoor unit is equipped with a heat exchanger, a blower fan for sucking indoor air, and a filter for filtering intake air. A centrifugal fan or a cross flow fan is applied to the blowing fan.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an air conditioner that allows a user to smoothly perform a filter cleaning and replacement operation by allowing a filter installed in an indoor unit to be smoothly drawn out and drawn.

It is another object of the present invention to provide an air conditioner provided with means for preventing a part of discharged air from being reintroduced into the indoor unit.

It is another object of the present invention to provide an air conditioner which can accurately predict the drawing or pulling-in length of a filter as the driving motor rotates.

According to an aspect of the present invention, there is provided an air conditioner comprising: a chassis having a front fan assembly; A center frame mounted in front of the chassis and having an indoor air inlet; A filter provided in the room air inlet for purifying indoor air to be sucked; And a filter drawing-out input means provided in front of the center frame for allowing the filter to be drawn out or drawn out. The filter drawing-out inputting means includes a plurality of ejectors for drawing out multi-stages while supporting the filter, And a time belt that connects the motor and any of the plurality of ejectors to transmit the power.

According to the air conditioner of the present invention having the above-described structure, the filter can be automatically drawn out by a filter withdrawal command input even if the user does not directly draw the filter.

In addition, since the time belt is used as the filter drawing means, the motor is prevented from being idle, and the accurate extraction distance of the filter can be predicted.

In addition, since the air blowing means is provided at the lower end of the filter pull-out means, there is an effect that a phenomenon in which a part of the air discharged into the room is sucked back is reduced.

1 is an external perspective view of an indoor unit of an air conditioner according to an embodiment of the present invention.

Referring to FIG. 1, an indoor unit 1 of an air conditioner according to an embodiment of the present invention includes a chassis 11 for forming a rear outer appearance, a front panel (not shown) And a center frame 13 interposed between the chassis 11 and the front panel 12 and having a suction port on the upper surface thereof. In the indoor unit 1, a fan assembly (not shown) for sucking indoor air and discharging indoor air and a heat exchanger for exchanging heat between the indoor air sucked by the fan assembly and the refrigerant are installed. A signal receiving unit 14 is provided on the front surface of the front panel 12 to receive an operation command signal output from the remote controller.

FIG. 2 is an external perspective view showing a state in which a filter of an indoor unit is drawn out according to an embodiment of the present invention, and FIG. 3 is a perspective view illustrating a filter drawing structure of an indoor unit according to an embodiment of the present invention.

Referring to FIGS. 2 and 3, the indoor unit 1 according to the embodiment of the present invention allows the filter to be automatically drawn out, thereby enabling the user to conveniently separate and clean and replace the filter.

In detail, the filter ejector 15 according to the embodiment of the present invention includes a plurality of frames that are drawn out in a multi-stage state with a filter mounted thereon, an ejector driving device that provides a driving force to draw the multi- (17) mounted on the lower end of the motor. A filter 16 is mounted on the front surface of the filter ejector 15 and the filter 16 is drawn in and out as the filter ejector 15 ascends and descends.

More specifically, the plurality of frames include a fixed frame 151 fixed to the front surface of the center frame 13, a guide frame 152 slidably connected to the fixed frame 151, And a movable frame 153 that is slidably connected to the movable frame 153. One or more of the guide frames 152 may be provided depending on the size of the indoor unit 1 or the size of the filter.

Further, an ejector driving device is provided on one side of the filter ejector 15, and the guide frame 152 and the moving frame 153 are drawn downward by the ejector driving device.

The ejector driving device includes a pulley 154 mounted on one side of the fixed frame 151 or the front face of the center frame 13, a driving motor (not shown) for providing a rotational force to the pulley 154, A time belt 155 wound around the pulley 154 is included.

Specifically, an idler 156 is provided at a predetermined distance downward from the pulley 154, and the time belt 155 is wound on the outer circumferential surface of the pulley 154 and the idler 156 in the form of a conveyor . A belt connecting end 152a protrudes from one side of the guide frame 152. Both ends of the time belt 155 are connected to the belt connecting end 152a. The pulley 154 and / or the idler 156 are formed with depressed portions which are engaged with the protrusions. Therefore, when the pulley 154 rotates, the time belt 155 also rotates together, and the pulley 154 is prevented from being loosened by the engagement of the protrusion and the depression. That is, the falling distance of the frame can be accurately controlled according to the number of revolutions of the pulley 154.

A guide hole 151b is formed on one side of the fixed frame 151 to receive the belt connection end 152a of the guide frame 152 to a predetermined length. Therefore, the guide frame 152 is lowered by the length of the guide hole 151b. A guide rail 151a is formed on the fixed frame 151 so that the guide frame 152 can be moved up and down without shaking. Of course, the guide frame 152 also has a guide structure for performing such a function, so that the moving frame 153 can be moved up and down without shaking. The structure in which the guide frame 152 and the moving frame 153 are lifted and lowered without shaking can be variously presented, and the structure as shown in the drawings is one embodiment.

A guide belt 157 is provided on the outer circumferential surface of one side edge of the guide frame 152. In detail, both ends of the guide belt 157 may be coupled to the fixed frame 151 or the center frame 13. The moving frame 153 is coupled to one point of the guide belt 157 so that the moving frame 153 is moved upward or downward when the guide frame 152 is moved upward or downward. The operation of the guide belt 157 and the moving frame 153 will be described in more detail below with reference to the drawings.

In addition, a plurality of support protrusions 153a protrude from the front surface of the moving frame 153 to support the edge of the filter. More specifically, the support protrusions 153a protrude from the front surface of the moving frame 153 and are bent so that the filter is fitted and supported.

FIG. 4 is a side view showing a state of a frame before the filter is drawn out, and FIG. 5 is a view showing a state of a frame in a state in which the filter is completely drawn out.

4 and 5, the stationary frame 151 is fixed to the front surface of the center frame 13, and a motor motor 151 is mounted on a motor mount 151c formed on one side of the stationary frame 151, Respectively. The pulley 154 is connected to the rotating shaft of the driving motor. The guide frame 152 is lowered by the movement of the time belt 157 as the pulley 154 rotates. When the guide frame 152 descends, the moving frame 153 coupled to the guide belt 157 descends together.

6 is a schematic view illustrating the operation principle of the filter ejector according to the embodiment of the present invention.

Referring to FIG. 6, the fixed frame 151 is fixed to the front surface of the center frame 13. Both ends of the guide belt 152 are fixed to the front surface of the center frame 13 or one side of the fixed frame 151. [ The guide belt 157 surrounds the outer peripheral surface of the guide frame 152. The rear surface of the moving frame 153 is connected to one point of the guide belt 157, that is, the connection point 157a.

With the above structure, the time belt 155 rotates as the pulley 154 rotates. As the time belt 155 rotates, the guide frame 152 descends. As the guide frame 152 descends, the guide belt 157 also moves together. As the connection point 157a descends, the moving frame 153 descends. When the pulley 154 rotates reversely, the moving frame 153 and the guide frame 152 are raised together.

7 is a partial perspective view showing the flow of air discharged from the indoor unit according to the embodiment of the present invention.

Referring to FIG. 7, a discharge port is provided below the indoor unit 1, and a discharge grill unit 20 is mounted near the discharge port. Air discharged by the discharge grill unit 20 is ejected while spreading widely to the left and right.

The main vane 18 and the sub vane 19 are rotatably coupled to the discharge port. A clearance between the front panel 12 and the discharge port is shielded by the wind blocking portion 17.

More specifically, when the fan assembly mounted in the indoor unit 1 is driven, most indoor air is sucked from the upper surface of the indoor unit 1, but a small amount of air is also sucked into the front surface of the indoor unit 1. [ Such a small amount of air is sucked through a gap formed between the front panel 12 and the discharge port, and a part of the air discharged from the discharge port can also be re-introduced into the gap. In order to prevent such a phenomenon, a blower block 17 is mounted on the lower end of the moving frame 153. The wind blocking portion 17 shields a gap formed between the lower end of the front panel 12 and the ejection opening. Therefore, a phenomenon that a part of the air discharged to the discharge port hits against the wind blocking portion 17 and is re-introduced into the indoor unit is prevented.

On the other hand, the main vane 18 has a width enough to completely cover the blower block 17 and a length corresponding to the length of the discharge port. The rear end of the main vane 18 and the rear end of the sub vane 19 are rotatably coupled to one side of the discharge grill unit 20. When the main vane 18 is closed, the whirl wind block 17 and the sub vane 19 are completely shielded. When the operation command of the indoor unit 1 is input, the sub vane 19 and the main unit 18 rotate in opposite directions to open the discharge port. Here, the sub vane 19 may start rotating after the main vane 18 is completely opened. Alternatively, the subvane 19 may begin to rotate immediately after the main vane 18 has rotated to an angle that does not interfere with the subvane 19.

In addition, the sub vane 19 may be set to have a different rotation angle in the cooling mode and the heating mode. For example, in the heating mode, the rotation angle of the sub vane 19 is relatively smaller than that in the cooling mode, so that the discharged warm air can be discharged toward the indoor floor. On the contrary, in the cooling mode, the rotation angle of the sub vane 19 becomes relatively large, so that it can be discharged into the upper space of the room. This is due to the purpose of rapidly cooling the hot air and warming the cold air quickly, because hot air is distributed in the upper part in summer and cold air is distributed in the bottom part in winter.

The coupling relationship and the operating method of the main vane 18 will be described in more detail below with reference to the drawings.

FIG. 8 is an external perspective view of a center frame constituting an indoor unit according to an embodiment of the present invention, and FIG. 9 is a bottom perspective view showing a filter guide structure provided in the center frame.

8 and 9, the indoor unit 1 according to the embodiment of the present invention is provided with a center frame 13, a front panel 12 is coupled to the front surface of the center frame 13, The chassis 11 is engaged.

The center frame 13 includes a grill body 131, a filter seating part 133 provided on the front surface of the grill body 131, and an upper grill body 133 formed on the upper surface of the grill body 131 132). The upper grill 132 substantially forms the upper surface of the indoor unit 1, and most of the intake air passes through the upper grill 132.

A control box receiving hole 136 is formed at one side edge of the grill body 131 and a panel link guide part 134 and a panel hinge hole 135 are formed at an upper edge of the control box receiving hole 136 . The panel hinge hole 135 is formed at a position spaced apart from the upper end of the panel link guide part 135. A coupling hook 137 is formed at the lower ends of both sides of the grill body 131 with a predetermined elastic force.

A filter guide rib 138 protrudes from the bottom surface of the upper grill 132, and the filter guide rib 138 is curved at a predetermined curvature. The upper end of the filter 16 is slid along the filter guide rib 138 in the process of returning the filter 16 to the home position after being drawn out. The filter 16 is inserted into the filter guide rib 138 in a predetermined position. Then, a part of the filter 16 is positioned below the upper grill 132, and the remaining part is positioned on the front surface of the filter seating part 133. Accordingly, the indoor air sucked through the front portion of the indoor unit 1 and the upper grill 132 is filtered by the filter 16, and then passes through the heat exchanger.

1 is an external perspective view of an indoor unit of an air conditioner according to an embodiment of the present invention;

2 is an external perspective view showing a state in which a filter of an indoor unit is drawn out according to an embodiment of the present invention;

3 is a perspective view illustrating a filter drawing structure of an indoor unit according to an embodiment of the present invention.

4 is a side view showing the state of a frame before the filter is drawn out;

5 is a view showing a state of a frame in a state in which the filter is completely drawn out;

6 is a schematic view illustrating the operation principle of a filter ejector according to an embodiment of the present invention.

7 is a partial perspective view showing the flow of air discharged from an indoor unit according to an embodiment of the present invention;

8 is an external perspective view of a center frame constituting an indoor unit according to an embodiment of the present invention;

9 is a bottom perspective view showing a filter guide structure provided in the center frame.

Claims (9)

A chassis on which the fan assembly is seated in front; A center frame mounted on the front of the chassis and having a suction port; A filter provided at the suction port for purifying the air to be sucked; A plurality of frames having a fixed frame fixed to the center frame, a guide frame moving along the fixed frame, and a moving frame moving along the guide frame; A motor mounted on one side of the fixed frame for providing a driving force to the plurality of frames; A pulley connected to a rotation axis of the motor; An idler spaced apart from the pulley; A time belt wound around the pulley and the idler and connected to the guide frame; And A guide belt wound around the guide frame and connected to the moving frame, Wherein the guide frame is raised or lowered by the rotation of the time belt when the motor rotates and the guide frame moves up or down as the guide belt moves due to the rise or fall of the guide frame Air conditioner. delete delete delete delete The method according to claim 1, Wherein an air blowing block is installed at a lower end of the moving frame to block air from being re-introduced. The method of claim 1, wherein An upper grill having a plurality of ribs arranged on an upper surface of the center frame, Wherein a guide rib is formed on a bottom surface of the upper grille so as to guide the filter into a predetermined position. 8. The method of claim 7, Wherein an end of the guide rib is formed to be rounded so that an upper end of the filter is guided to the rear while being raised. The method according to claim 1, Wherein the moving frame is formed with a support protrusion for supporting the filter.

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