KR20060016008A - Filter Unit of Air Conditioner - Google Patents

Abstract

The present invention relates to a filter unit of an air conditioner, and a filter extracting means is formed between a filter case and a filter, and one side of the filter case is provided with an operation button for operating the filter extracting means. The filter is automatically taken out by the filter extracting means only by a simple operation, and there is an advantage in that replacement and cleaning of the filter are also easily performed.

Air Conditioner, Indoor Unit, Air Intake, Filter Unit, Operation Button, Dust Sensor, Filter Outlet

Description

Filter unit of an air conditioner {Filter unit of air conditioner}             

1 is a perspective view of a separate air conditioner according to a first embodiment of the present invention in operation;

2 is a perspective view of a separate air conditioner according to the first embodiment of the present invention when stopped;

3 is an exploded perspective view showing an indoor unit of a separate air conditioner according to a first embodiment of the present invention;

4 is a cross-sectional view showing an indoor unit when the separate air conditioner according to the first embodiment of the present invention is in operation;

5 is an exploded perspective view showing a filter unit of a separate air conditioner according to a first embodiment of the present invention;

6 is a cross-sectional view showing a filter unit of a separate air conditioner according to a first embodiment of the present invention;

7 is a cross-sectional view showing a filter unit of a separate air conditioner according to a second embodiment of the present invention;

8 is a cross-sectional view showing a filter unit of a separate air conditioner according to a third embodiment of the present invention;

9 is a perspective view showing an indoor unit of a separate air conditioner according to the prior art,

10 is an exploded perspective view showing an indoor unit of a separate air conditioner according to the prior art;

11 is a cross-sectional view showing an indoor unit of a separate air conditioner according to the prior art.

<Explanation of symbols on main parts of the drawings>

51: indoor unit 52: chassis

53: rear air intake 54: front frame

55: front air inlet 56: top air inlet

57: air discharge port 58: discharge hole

59: display 60: front panel

61: display 62: electric dust collector

63: prefilter 64: link means

65: first link 66: second link

67: pinion 68: motor for front panel rotation

69: rack 70,70 ', 70' ': filter unit

71,71 ', 70' ': Filter case 71a: Suction hole

71b: communication hole 71c: filter access hole                 

72,72 ', 72' ': filter 72a, 72a', 72a '': pre-filter

72b, 72b ', 72b' ': Nano Copper Filter 72c, 72c', 72c '': Nano Silver Filter

72d, 72d ', 72d' ': Electrostatic Precipitator 73,73', 73 ,,: Guide

74: front cover 75: louver

76: louver rotating motor 77: power supply plate

78: power supply plate 80,80 ', 80' ': filter take-out means

82,82 ', 82' ': Filter takeout motor 84,84', 84 '': Filter takeout mechanism

84a, 82a ', 82a' ': Pinion for filter extraction

84b, 84b ', 84b' ': Rack for filter takeout

86,86 '': operation switch 88,88 '': dust sensor

90: indoor blower 92: motor for indoor blowing

94: indoor blower fan 96: indoor heat exchanger

97: vertical portion 98: first inclined portion

99: second inclined portion 102: condensate receiving portion

104: louver 106: vane

108: discharge grill 110: control box

111: control unit 112: upper decorative panel

114: lower decorative panel 120: outdoor unit

122: refrigerant pipe 124: oxygen generator

130: Information hose

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter unit of an air conditioner, and more particularly, to a filter unit of an air conditioner, in which a filter unit is installed at an air inlet of an indoor unit, and the filter of the filter unit can be easily replaced and cleaned.

In general, an air conditioner is a heater, an air conditioner, an air purifier, etc., which is installed to cool / heat the room or purify the air and create a more comfortable indoor environment for human beings. The air conditioner is divided into a window type and a separate type or a separate type. split type).

The one-piece type and the separate type are functionally the same, but the one-piece type integrates the function of cooling heat dissipation, and is directly installed by drilling a hole in a wall of a house or by hanging a device on a window. The separate type installs a cooling device on the indoor side and heat dissipation on the outdoor side. And a compression device to connect the two devices separated from each other by a refrigerant pipe.

The separate type of the air conditioner is an indoor unit having an indoor heat exchanger to perform a cooling function largely, an outdoor heat exchanger performing a heat dissipation and compression function, an outdoor unit having a compressor and an expansion device, and an indoor unit and an outdoor unit connected to each other. It consists of refrigerant piping.

9 is a perspective view showing an indoor unit of a separate air conditioner according to the prior art, Figure 10 is an exploded perspective view showing an indoor unit of the separate air conditioner according to the prior art, Figure 11 is a separate air conditioner according to the prior art Is a cross-sectional view of the indoor unit.

The indoor unit of the detachable air conditioner according to the prior art is coupled to the chassis 2, the front of the chassis 2, the front air inlet 4 and the top suction grille 6, as shown in Figure 9-11 A front frame 10 having an air outlet 8 formed on the front lower side or the bottom thereof, a front suction grille 12 rotatably connected to the front surface of the front frame 10, and the chassis 2. A motor 14 to be mounted, a blower fan 16 connected to the motor 14, and a heat exchanger 18 disposed between the blower fan 16, the air inlet 4, and the suction grille 6. It is configured to include).

The front frame 10 has a front air inlet 4 formed on the front surface, and the top suction grille 6 is integrally formed on the top surface.

The front air inlet 4 of the front frame 10 is disposed with a filter 5 for purifying the air sucked into the front air intake 4.

The filter 5 is a pre-filter for filtering foreign matter in the air.

The front suction grille 12 is rotatably connected to an upper portion of the front frame 10.

A louver for forming a condensate receiver 19 receiving the condensate dropped from the heat exchanger 18 and changing the left and right wind directions of the air discharged to the air outlet 8 in the lower portion of the front frame 10 ( A discharge grill 24 including a vane 22 for changing the up and down wind direction 20 is mounted.

In the conventional air conditioner configured as described above, when the blower fan 16 is rotated by the driving of the motor 14, indoor air in front of the front frame 10 passes through the front suction grille 12. Afterwards, the foreign matter is filtered by the filter 5 while passing through the front air inlet 4, and is sucked into the space between the front frame 10 and the chassis 2.

In addition, the indoor air of the upper side of the front frame 10 passes through the upper surface suction grille 6 and is sucked into the space between the front frame 10 and the chassis 2.

The indoor air sucked as described above is cooled or heated by the refrigerant passing through the heat exchanger 18 while passing through the heat exchanger 18, and after passing through the blower fan 16, the louver 20 and Guided by the vanes 22 and discharged into the room through the air discharge port (8).

However, the indoor unit of the detachable air conditioner according to the prior art heats up only after the foreign material is filtered by the pre-filter 5 through the front air suction port 4, and the top suction grill 6 Since the indoor air sucked through the heat exchange is performed without air purification, there is a limit in improving the air purification performance, and there is a problem in that an additional air purifier is additionally installed to purify the indoor air.

In addition, if a separate filter is installed in the indoor unit to purify the indoor air sucked through the upper surface suction grille 6, the cost is increased due to the installation of the filter and the structure for installing the filter. There is a problem that the attachment and detachment of the filter is complicated.

In addition, when the attachment and detachment of the filter is complicated as described above, there is a problem that the replacement and cleaning of the filter is difficult, causing user dissatisfaction.

In addition, since the filter replacement time and the cleaning time point are changed according to the operating condition of the air conditioner, there is a problem that the replacement and cleaning time point of the filter is not accurately determined.

The present invention has been made to solve the above problems, an object of the present invention is to install a filter unit having excellent air purification performance in the air inlet of the indoor unit to improve the purification performance of the air conditioner, the filter of the filter unit It is to provide a filter unit of an air conditioner that can be easily replaced or cleaned.

The filter unit of the air conditioner according to the present invention for realizing the above object is a filter case mounted in communication with the air inlet of the indoor unit, and a filter installed inside the filter case through a filter entrance hole formed in the filter case; And a filter extracting means installed at one of the filter case and the indoor unit, and a filter extracting means installed at the filter and the filter case and operated by the operation switch to draw out the filter to the outside of the filter case. It is done.

In addition, the filter unit of the air conditioner according to the present invention includes a filter case mounted in communication with the air inlet of the indoor unit, a filter installed inside the filter case through a filter entrance hole formed in the filter case, and the filter case and A sensor installed at any one of the filters to detect contamination of the filter, and installed at the filter and the filter case and operated when the degree of contamination detected by the sensor exceeds a set value to draw the filter out of the filter case. Characterized in that it comprises a filter withdrawing means.

In addition, the filter unit of the air conditioner according to the present invention includes a filter case mounted in communication with the air inlet of the indoor unit, a filter installed inside the filter case through a filter entrance hole formed in the filter case, and the filter case and A sensor installed on one of the filters to detect the contamination of the filter, and a filter contamination indicating means installed on any one of the filter case and the indoor unit to notify the contamination and cleaning time of the filter detected by the sensor. Characterized in that configured.

Here, the filter unit of the air conditioner is installed in the filter and the filter case and is further activated filter extraction means for drawing out the filter to the outside of the filter case when the pollution degree detected by the sensor exceeds a set value. It is configured to include.

And, the filter unit of the air conditioner is installed in the filter and the filter case, the filter withdrawing means for drawing out the filter to the outside of the filter case, and is installed in any one of the filter case and the indoor unit is the filter withdrawal And an operation switch for activating the means.

The filter takeout means is constituted by a filter takeout motor provided in the filter case, and a filter takeout mechanism provided between the filter takeout motor and the filter to take out the filter to the outside by the filter takeout motor.

The filter take-out mechanism includes a pinion formed on a rotating shaft of the filter take-out motor and a rack formed on one side of the filter.

The filter contamination indicating means is a display installed in at least one of the indoor unit and the filter case.

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

1 and 2 are perspective views of the split type air conditioner according to the first embodiment of the present invention when it is in operation and during stop operation, and FIG. 3 is a split air conditioner according to the first embodiment of the present invention. 4 is an exploded perspective view illustrating an indoor unit, and FIG. 4 is a cross-sectional view illustrating an indoor unit when the separate air conditioner according to the first embodiment of the present invention is in operation.

As shown in Figures 1 to 4, the separate air conditioner according to the present embodiment is formed in the indoor unit 51, the air inlet and the air outlet.

The indoor unit 51 includes a chassis 52 and a front frame 54 mounted in front of the chassis 52.

The chassis 52 has a rear air inlet 53 formed thereon.                     

The front frame 54 is coupled to the front surface of the chassis 52 and a predetermined inner space is formed between the chassis 52 to accommodate an indoor heat exchanger, an air blower, and the like described later.

A front air intake port 55 through which indoor air is sucked is formed in the front part of the front frame 54 as described above, and a top air intake port 56 through which indoor air is sucked by the upper part is formed. In addition, the front frame 54 has an air discharge port 57 formed at a lower side or a bottom surface of the front air intake port 55.

On the other hand, the front frame 54 has a discharge hole 58 is formed on one side of the front air intake port 55 on one side of the front air intake port 55 to discharge oxygen, wet air or fresh air from the outside, and the front air intake port ( On the other side of the left and right of 55, a display 59 for displaying operation information of the separate type air conditioner and pressing various operations such as forced operation of the separate type air conditioner is mounted.

The display 59 includes a printed circuit board, a plurality of LEDs mounted on the printed circuit board, and a diffusion plate disposed and pressed in front of the LEDs to diffuse the light of the LEDs.

At the rear of the display 59, a um switch is pressed by the printed circuit board and switches various operations such as forced driving of the separate air conditioner.

In addition, the front of the front frame 54 opens the front of the front air intake port 55 when the indoor unit 51 of the separate air conditioner is operated, and the front air intake port when the indoor unit of the separate air conditioner is stopped. The front panel 60 which blocks the front of 55 is provided so that rotation is possible.

The front of the front panel 60 is preferably a mirror is attached, a color panel of a specific color is attached or a picture frame is attached.

One side of the front panel 60 is equipped with a display 61 for displaying the operation information of the separate air conditioner.

The display 61 is formed of at least one of various display devices such as LEDs and LCDs.

Preferably, the display 61 is provided with an LCD or the like so that driving information can be displayed by scrolling letters or the like.

In addition, an electrostatic precipitator 62 is installed on the front side of the front frame 54 to ionize and collect foreign substances in the air sucked through the front air intake port 55, and the front of the electrostatic precipitator 62. The pre-filter 63 which filters foreign substances in the air sucked through the air inlet 55 is mounted.

In addition, the front panel 60 allows the front panel 60 to be rotated forward with respect to a lower portion of the front frame 54, and the front panel 60 is connected to the indoor unit when the prefilter 63 is attached or detached. Link means 64 supporting the front panel 60 are mounted so as to be located at the front lower side of the front panel 51.

The link means 64 includes a first link 65 connected to the lower front surface of the front frame 54, and a second link connected to the first link 65 and connected to the lower rear surface of the front panel 60. It consists of a link 66.

One end of the first link 65 is hingedly connected to the front frame 54 and the other end thereof is connected to the front frame 54.

One end of the second link 65 is hinged to the front panel 60 and the other end is hinged to the other end of the first link 65.

In addition, a front panel rotating motor 68 in which the pinion 67 is formed is mounted on the front frame 54 to rotate the front panel 60. The rear surface of the front panel 60 is mounted. The rack 69 engaged with the pinion 67 protrudes backward.

In addition, the air conditioner sucks indoor air through the rear air intake port 53, the front air intake port 55, and the upper air intake port 56 to pass between the front frame 54 and the chassis 52. After the air discharge port 57 is configured to further include an indoor blower 90 for discharging back to the room.

The indoor blower 90 is mounted on the front of the chassis 52 and the rotary shaft 91 is rotated by the indoor blowing motor 92 and the indoor blowing motor 92 protruding from the rotating shaft 91. The indoor blowing fan 94 is connected.

The indoor blower fan 94 is a crossflow fan, which is disposed to the left and right in front of the chassis 52.

In addition, the air conditioner further comprises an indoor heat exchanger (96) to allow the indoor air sucked between the front frame (54) and the chassis (52) to exchange heat with the refrigerant to cool or heat.

The indoor heat exchanger 96 includes a vertical portion 97 vertically disposed behind the front air inlet 55, and a first inclined portion 98 disposed to be inclined upwardly from the upper end of the vertical portion 97. And a second inclined portion 99 disposed to be inclined downward from the upper end of the first inclined portion 98.

A louver for forming a condensate receiver 102 receiving the condensed water dropped from the indoor heat exchanger 96 and changing the left and right wind directions of the air discharged to the air outlet 57 in the lower portion of the front frame 54. A discharge grill 108 including a 104 and a vane 106 for changing the up and down wind direction is mounted.

On the other hand, the front frame 54 is installed so that the filter unit 70 is detachable to the upper air intake port 56 so that the air passing through the upper air intake port 56 can be purified.

Reference numeral 110 is a control box mounted to the front of the blower motor 94 of the blower 90 is equipped with electrical components for controlling the air conditioner.

Reference numeral 112 denotes an upper decorative panel disposed to the left and right on the front upper side of the front frame 54.

Reference numeral 114 denotes a lower decorative panel disposed on the lower left side of the front frame 54 to the left and right.

Reference numeral 120 denotes an outdoor unit equipped with a compressor and an outdoor heat exchanger.

Reference numeral 122 is a refrigerant pipe connecting the indoor unit 51 and the outdoor unit 120 of the separate air conditioner.

Reference numeral 124 is a device installed in the outdoor unit 120 to generate oxygen, wet air or fresh air blown to the indoor unit, and will be described below with an oxygen generator for generating oxygen for convenience of description. .

Reference numeral 130 is a guide hose connected to the oxygen generator 124 to guide the oxygen generated by the oxygen generator 124 to the discharge hole 58 of the front frame 54.

On the other hand, at least one of the indoor unit 51 and the outdoor unit 120 of the separate air conditioner is provided with an expansion mechanism (not shown).

5 is an exploded perspective view illustrating a filter unit of a separate air conditioner according to a first embodiment of the present invention, and FIG. 6 is a cross-sectional view of a filter unit of a separate air conditioner according to a first embodiment of the present invention. .

As shown in FIGS. 5 and 6, the filter unit 70 includes a filter case 71 having a suction hole 71a through which indoor air is sucked and a communication hole 71b communicating with an interior of the indoor unit, and And one or more filters 72 mounted on the filter case 71.

The filter case 71 has the suction hole 71a formed on an upper surface thereof, and the communication hole 71b formed on a lower surface thereof.

The filter case 71 has a filter access hole 71c for entering and exiting the filter 72.

The filter case 71 has the filter entrance hole 71c formed on a front surface thereof.

The filter case 71 is formed with a guide 73 for guiding sliding of the filter 72 so that the filter 72 can be slidably detached through the filter entrance hole 71c.

The guide 73 protrudes from the left and right inner surfaces of the filter case 71 and is elongated in the front-rear direction.

The filter unit 70 further includes a front cover 74 that blocks the filter entrance hole 71c when the filter 72 is mounted.

The front cover 74 is rotatable on both sides of the filter case 71 by rotating shafts 74a and 74b formed at both ends of the front cover 74 so as to open and close the filter access hole 71c. Is installed.

The filter unit 70 further includes a louver 75 rotatably disposed in the suction hole 65a.

The louver 75 opens and closes the suction hole 71a and guides indoor air sucked toward the suction hole 71a, and the rotation shafts 75a and 75b protrude from both left and right sides.

The filter unit 70 further includes a louver rotating motor 76 installed in the filter case 71 to rotate the louver 75.

The filter 72 is composed of at least one of a prefilter, an electrostatic precipitator, a hepa filter, a nano carbon filter, a nano copper filter, and a nano silver filter, and the prefilter 72a and the nano for convenience of description below. The copper filter 72b, the nano silver filter 72c, and the electrostatic precipitator 72d will be described as being limited.

The filter 72a, 72b, 73c, 74d extends in front of the back air inlet 53 and allows the at least one 72a to purify the air sucked into the back air inlet 53 and the back air inlet The front part of 53 is bent.

On the other hand, the filter extracting means 80 is formed in the filter case 71 and the filter 72 so that the filter 72 can be easily attached and detached through the filter access hole 71c. One of the filter unit 70 and the indoor unit 51 is provided with an operation switch 86 to control the operation of the control panel.

The operation switch 86 is a push button provided to be pushable.

The filter extracting means 80 is provided between the filter extracting motor 82 provided in the filter case 71, the filter extracting motor 82 and the filter 72, and the filter extracting motor 82. It is comprised by the filter extraction mechanism 84 which pulls out the said filter 72 to the exterior of the filter case 71 by the driving force of.

The filter extracting means 80 and the operation switch 86 made as described above are installed in various structures according to the design conditions of the filter unit 70. In FIGS. 5 and 6, the filter extracting means 80 One specific example is shown.

Specifically, referring to the filter extracting means 80 and the operation switch 86, the filter extracting mechanism 84 includes a filter extracting pinion 84a formed on a rotation shaft of the filter extracting motor 82, and the filter. And a filter take-out rack 84b formed on both bottom surfaces of the filter 72 so as to be engaged with the take-out pinion 84a.

The filter take-out motor 82 is disposed below the filters 72a, 72b, 72c, and 72d so that the filter pull-out pinion 84a and the filter take-out rack 84b can be engaged with each other. The left and right inner surfaces of the filter case 71 are respectively installed to face each other.

The operation switch 86 is installed on the front surface of the filter case 71 so that the front cover 74 is rotated upward to be exposed to the outside when the filter access hole 71c is opened, and is operated as a push operation. The driving of the filter take-out motor 82 is controlled.

The operation switch 86 is provided with a single number in the filter case 71 so that a plurality of filters 72a, 72b, 72c, 72d installed in the filter case 71 can be simultaneously drawn out, or A plurality of filters are provided in the filter case 71 so that only a desired filter among the filters 72a, 72b, 72c, and 72d can be selectively drawn out.

Of course, the operation switch 86 may be installed in the operation unit formed in the indoor unit (51).

Reference numeral 77 denotes a power supply plate installed in the front frame 54 for supplying power to the electrostatic precipitator 72d or the louver rotating motor 76.

Reference numeral 78 denotes the electric dust collector 72d or the louver rotating motor 76 that is installed and supplied to the filter case 71 so as to contact the power supply plate 77 when the filter unit 70 is mounted. It is a power supply plate to apply.

Looking at the operation and operation of the air conditioner and the filter unit of the air conditioner according to the present invention configured as described above are as follows.

First, as shown in FIG. 1 and FIG. 4, the cooling / heating function and the air cleaning function of the air conditioner are provided in the state where the filter unit 70 is mounted on the upper surface air inlet 56 of the front frame 54. When operated together, the compressor of the outdoor unit 120 and the outdoor blower are driven, the front panel rotating motor 68 and the louver rotating motor 76 are driven in an open mode, and the indoor unit 51 is indoors. The blower 90 is also driven in the forward direction.

That is, when the compressor and the outdoor blower of the outdoor unit 120 are driven, refrigerant is circulated in the compressor, the outdoor heat exchanger, the expansion mechanism, and the indoor heat exchanger, and the indoor heat exchanger 96 takes away heat from the surroundings, The heat is released to cool / heat the surrounding air.

When the front panel rotating motor 68 is driven in the open mode, the pinion 67 is rotated so that the rack 69 is advanced and the front panel 60 is centered on the first link 65. An air suction passage is formed between the front frame 54 and the front frame 54 in the forward direction, and the indoor unit 51 is in a state in which indoor air can be sucked through the front air suction port 55.

When the louver rotating motor 76 is driven in the open mode, the louver 75 opens the suction hole 71a of the filter case 71.

When the indoor blower motor 92 of the indoor blower 90 is driven, the indoor blower fan 94 is rotated so that the indoor air in front of the indoor unit 51 and the front and rear of the indoor blower 51 is connected to the front air intake port 55. The upper air suction port 56 and the rear air suction port 53 are sucked into the air discharge port 57.

Here, the indoor air sucked into the front air inlet 55 passes through the prefilter 63 mounted on the front side of the front frame 54, and foreign matters such as dust are caught by the prefilter 63.

The indoor air, through which the foreign matter is filtered while passing through the pre-filter 63, passes through the electric dust collector 62 mounted on the front side of the front frame 54, and small dust that is not filtered by the pre-filter 63. Ionize and collect foreign substances.

The purified indoor air is cooled / heated by the refrigerant while passing through the vertical part 97 or the first inclined part 98 of the indoor heat exchanger 96.

In addition, the indoor air sucked into the upper surface air intake port 56 is purified by the filter 72 while passing through the filter unit 70, and then the first inclined portion 98 or the first slope of the indoor heat exchanger 96. 2 is cooled / heated by the refrigerant while passing through the inclined portion 99.

In more detail, the purifying action of the filter unit 70, the indoor air sucked into the upper surface air suction port 56 passes through the suction hole 71a of the filter case 71 to pass the filter case 71. The foreign material such as dust is filtered, antibacterial or sterilized while passing through the pre-filter 72a, the nano-copper filter 72b, the nano-silver filter 72c, and the electrostatic precipitator 72d in order. Foreign matter such as dust is ionized and collected, and flows into the space between the chassis 52 and the front frame 54 through the communication hole 71b.

In addition, the indoor air sucked into the rear air intake port 53 is purified by the filter 72a which is bent forward of the rear air intake port 53 among the filters 72a, 72b, 73c, and 74d. Cooling / heating is performed by the refrigerant while passing through the second inclined portion 99 of the indoor heat exchanger 96.

The indoor air cooled / heated as described above is guided by the louver 104 and the vanes 106 of the discharge grill 108 after passing through the indoor blower fan 94 and through the air discharge port 57. Is discharged.

On the other hand, when the cooling / heating function of the air conditioner is stopped and only the air cleaning function is operated while the filter unit 70 is mounted on the upper surface air inlet 56 of the front frame 54, the outdoor unit 120 The compressor and the outdoor blower are stopped, the front panel rotating motor 68 is driven in a closed mode, the louver rotating motor 76 is driven in an open mode, and the indoor blower of the indoor unit 51 90 is driven in the reverse direction.

That is, when the compressor and the outdoor blower of the outdoor unit 120 are stopped, the refrigerant is not circulated in the compressor, the outdoor heat exchanger, the expansion mechanism, and the indoor heat exchanger, thereby cooling / heating the indoor air by the indoor heat exchanger 96. This becomes impossible.

When the front panel pivoting motor 68 is driven in the closed mode, the pinion 67 is rotated so that the rack 69 is reversed, and the front panel 60 is centered on the first link 65. It rotates backward to seal the front air intake port 55 of the front frame 54, and the indoor unit 51 is in a state in which it is impossible to discharge the purified air through the front air intake port 55.

When the louver rotating motor 76 is driven in the open mode, the louver 75 opens the suction hole 71a of the filter case 71.

The indoor blower motor 92 of the indoor blower 90 is driven in the opposite direction as in the cooling / heating operation of the air conditioner. When the indoor blower motor 92 is driven in the reverse direction as described above, As the indoor blower fan 94 is rotated in the reverse direction, the indoor air under the indoor unit 51 is sucked into the air discharge port 57 and then discharged to the upper air suction port 56 and the rear air suction port 53.

The indoor air sucked into the air outlet 57 is guided by the louver 104 and the vane 106 of the discharge grill 108 installed in the air outlet 57 and sucked into the indoor unit 51. The indoor air sucked into the indoor unit 51 passes through the indoor blowing fan 94 and the indoor heat exchanger 96.

At this time, since the heat exchange action does not occur between the indoor heat exchanger 96 and the indoor air, the indoor air is discharged to the upper air inlet 56 and the rear air inlet 53 without being cooled / heated.

Here, the indoor air discharged to the upper surface air intake port 56 is purified by the filter 72 while passing through the filter unit 70 and then discharged to the room.

In addition, the indoor air discharged to the rear air intake port 53 is purified by the filter 72a extending forward of the rear air intake port 53 among the filters 72a, 72b, 73c, and 74d. The indoor air purified by the filter 72 is discharged to the rear of the indoor unit 51 through the rear air inlet 53.

Accordingly, the air conditioner is not capable of cooling / heating the indoor air by the indoor heat exchanger, but air purification by the filter 72 of the filter unit 70 is possible, so that the air conditioner is used as an air purifier.

When the indoor air is purified by the air conditioner while the indoor blower 90 is rotated in the reverse direction as described above, the air purified by the upper part of the indoor unit 51 after the indoor air is sucked into the lower part of the indoor unit 51. Is discharged, it is prevented that the purified air is discharged directly to the occupants indoors, the user's discomfort is reduced.

For example, in winter, purified air is discharged directly to a person, thereby preventing cold caused by the discharged air.

On the other hand, as shown in FIG. 2, when the operation of the air conditioner is stopped and the cooling / heating function and the air cleaning function of the air conditioner are not operated, the compressor and the outdoor blower of the outdoor unit 120 The front panel rotating motor 68 and the louver rotating motor 76 are driven in a closed mode, and the indoor blower 90 of the indoor unit 51 is stopped.

That is, when the front panel rotational motor 68 is driven in the closed mode, the pinion 67 is rotated backward to reverse the rack 69, the front panel 60 is the first link 65 Is rotated forward with respect to the front air inlet 55 of the front frame 54 is blocked.

When the louver rotational motor 76 is driven in the closed mode, the louver 75 seals the suction hole 71a of the filter case 71.

As described above, when the air cleaning function of the air conditioner is performed for a long time, various foreign substances filtered from the indoor air are accumulated in the filter 72 of the filter unit 70, and the performance of the filter 72 is deteriorated. The flow resistance of the filter 72 reduces the amount of air sucked into the upper surface air intake port 56, thereby degrading the performance of the air conditioner.

Therefore, the filter unit 70 periodically cleans the filter 72 or replaces a filter whose air purification performance is degraded among the filters 72a, 72b, 72c, and 72d with a new filter.

Looking at the filter withdrawal method of the filter unit 70 in more detail, as shown in FIGS. 5 and 6, first by rotating the front cover 74 mounted on the front of the filter case 71 to the upper side After opening the filter access hole 71c of the filter case 71, the operation switch 86 installed on the front surface of the filter case 71 is pressed.

As the operation switch 86 is pressed, the filter takeout motor 82 is driven to rotate the filter pullout pinion 84a provided on the rotation shaft of the filter takeout motor 82.

And, as the filter pull-out pinion 84a is rotated, the filter 72 slides forward along the guide 73 by the filter pull-out rack 84b engaged with the filter pull-out pinion 84a. The filter 72 is drawn out through the filter entrance hole 71c.

In this case, when a plurality of operation switches 86 are installed in the filter case 71, the plurality of filter taking-out motors 82 are driven together as the operation switch 86 is operated to provide the filter access hole ( The plurality of filters 72a, 72b, 72c, 72d are simultaneously drawn out through 71c. On the other hand, when the plurality of operation switches 86 are installed in the filter case 71 so as to correspond to the plurality of filter take-out motors 82, the plurality of filter take-outs are operated as the operation switch 86 is operated. The motors 82 are driven separately to selectively pull out a plurality of filters 72a, 72b, 72c, and 72d through the filter entrance and exit holes 71c.

As described above, the filter 72 drawn out from the filter case 71 removes various foreign matters stacked on the surface, and the filter 72 regenerated through the filter access hole 71c is formed of the filter case 71. It slides back inside.

At this time, when the filter take-out motor 82 is rotated in the reverse direction by the operation of the operation switch 86, the filter 72 is automatically mounted inside the filter case 71.

 When the filter 72 is installed inside the filter case 71, the front cover 74 is rotated downward to block the filter entrance hole 71c.

Of course, even when the filter 72 is replaced with a new one, the replacement operation of the filter 72 proceeds in the same order as described above.

7 is a cross-sectional view showing a filter unit of a separate air conditioner according to a second embodiment of the present invention.

Here, the same reference numerals as the above-mentioned drawings indicate the same members.                     

As shown in FIG. 7, the filter unit 70 ′ of the air conditioner according to the present embodiment is provided with a dust sensor 88 installed at one side of the filter case 71 ′ or the filter 72 ′. When the contamination degree of the filter 72 'mounted inside the 71' is detected, and the pollution degree detected by the dust sensor 88 exceeds a set value, the filter extracting means 80 'is activated to operate the filter. The filter 72 'is automatically drawn out from the inside of the case 71', and all configurations and operations are the same as those of the first embodiment described above except that the operation switch is omitted.

The dust sensor 88 is installed on the guide 73 'of the filter case 71' or directly on the surface of the filter 72 '.

The dust sensor 88 is installed in the guide 73 'or the filter 72 so as to correspond to the number of the filters 72a', 72b ', 72c', 72d ', and thus the filters 72a', 72b '. And 72c 'and 72d'), respectively, to detect the amount of dust accumulated on the surface.

The filter extracting means 80 'is provided between the filter extracting motor 82' installed in the filter case 71 'and between the filter extracting motor 82' and the filter 72 '. The filter take-out mechanism 84 'which draws out the said filter 72' to the exterior of the filter case 71 'by the driving force of the motor 82' is comprised, The said filter taking-out motor 82 'is The drive is adjusted according to the detected value of the dust sensor 88.

That is, when the degree of contamination of the filter 72 'detected by the dust sensor 88 exceeds a set value, power is applied to the filter taking-out motor 82' and the filter taking-out motor 82 ' Is driven.

8 is a cross-sectional view showing a filter unit of a separate air conditioner according to a third embodiment of the present invention.

Here, the same reference numerals as the above-mentioned drawings indicate the same members.

As shown in FIG. 8, the filter unit 70 ″ of the air conditioner according to the present embodiment includes a dust sensor 88 ″ at one side of the filter case 71 ″ or the filter 72 ″. Installed to detect the contamination level of the filter 72 ″ mounted inside the filter case 71 ″, and the detection value of the dust sensor 88 ″ is displayed to the outside through the filter contamination indicating means. The other configurations and operations are the same as those of the first embodiment described above.

The dust sensor 88 '' is installed on the guide 73 '' of the filter case 71 '' or directly on the surface of the filter 72 ''.

The dust sensor 88 '' is installed in the guide 73 '' or the filter 72 '' to correspond to the number of the filters 72a '', 72b '', 72c '', 72d ''. The amount of dust accumulated on the surfaces of the filters 72a '', 72b '', 72c '', and 72d '' is respectively sensed.

The filter contamination indicating means is the display 61 of the indoor unit 51.

That is, the pollution degree detected by the dust sensor 88 ″ is displayed on the display 61 as a quantitative value, thereby informing the user of the pollution degree and cleaning time of the filter 72 ″. Thus, the contamination of the filter 72 '' is easily recognized by the display 61 so that the filter 72 '' can be replaced and cleaned at an optimum time.                     

When the time point for replacing and cleaning the filter 72 ″ is identified through the above and the simple display 61, the filter extraction means 80 ″ is operated by the operation of the operation switch 86 ″ to operate the filter 72. '') Is drawn out of the filter case 71 ''.

Of course, when the degree of contamination of the dust sensor 88 '' exceeds a set value, if a predetermined time has elapsed without any operation input from the user, the filter extracting means 80 '' may be automatically activated. have. In addition, the filter contamination indicating means may also be a display installed in the filter unit 70 ″ so that only the pollution degree of the filter 72 ″ is displayed.

As described above, the filter unit of the air conditioner according to the present invention has been described with reference to the illustrated drawings. However, the present invention is not limited to the above-described embodiments and drawings, and various modifications may be made by those skilled in the art within the technical scope of the present invention. Of course, variations may be possible.

In the filter unit of the air conditioner according to the embodiment of the present invention configured as described above, a filter withdrawing means is formed between the filter case and the filter, and one side of the filter case is provided with an operation button for operating the filter withdrawing means. The filter is automatically taken out by the filter extracting means only by a simple operation of operating the operation button, and there is an advantage that the filter can be easily replaced and cleaned.                     

In addition, in the filter unit of the air conditioner according to another embodiment of the present invention, a filter withdrawing means is formed between the filter case and the filter, and a sensor for detecting contamination of the filter is installed at one side of the filter case or the filter. The filter withdrawing means is activated by the sensor according to the detected value, and the filter is automatically taken out, the filter can be easily replaced and cleaned, and the filter replacement and cleaning time can be accurately grasped.

In addition, in the filter unit of the air conditioner according to another embodiment of the present invention, a filter withdrawing means is formed between the filter case and the filter, and a sensor for detecting contamination of the filter is installed at one side of the filter case or the filter. Since the indoor unit is provided with a display displaying the contamination of the filter detected by the sensor, the display has the advantage that the contamination of the filter is not only quantitatively identified but also the replacement and cleaning time of the filter is accurately identified.

In addition, a guide for guiding sliding detachment of the filter is formed inside the filter case, so that the filter is easily detached from the inside of the filter case in a sliding manner, and the filter is stably installed in the filter case. There is this.

The filter may include at least one of a pre-filter, an electrostatic precipitating filter, a hepa filter, a nano carbon filter, a nano copper filter, and a nano silver filter, whereby the air conditioner purifies indoor air by a filter unit. The performance is improved.

Claims (8)

A filter case mounted in communication with an air intake port of the indoor unit; A filter installed inside the filter case through a filter entrance hole formed in the filter case; An operation switch installed at any one of the filter case and the indoor unit; And a filter extracting means installed at the filter and the filter case and operated by the operation switch to draw out the filter to the outside of the filter case. A filter case mounted in communication with an air intake port of the indoor unit; A filter installed inside the filter case through a filter entrance hole formed in the filter case; A sensor installed in one of the filter case and the filter to detect contamination of the filter; And a filter extracting means installed in the filter and the filter case and operated when the degree of contamination sensed by the sensor exceeds a set value, thereby drawing out the filter to the outside of the filter case. . A filter case mounted in communication with an air intake port of the indoor unit; A filter installed inside the filter case through a filter entrance hole formed in the filter case; A sensor installed in one of the filter case and the filter to detect contamination of the filter; The filter unit of the air conditioner, characterized in that it is installed in any one of the filter case and the indoor unit and comprises a filter pollution indicating means for informing the cleaning time and contamination of the filter detected by the sensor. The method of claim 3, wherein The filter unit of the air conditioner further includes a filter extracting means installed in the filter and the filter case and operated when the pollution degree detected by the sensor exceeds a set value, thereby drawing the filter out of the filter case. A filter unit of an air conditioner, characterized in that. The method of claim 3, wherein The filter unit of the air conditioner is provided in the filter and the filter case, the filter withdrawing means for drawing out the filter to the outside of the filter case, and installed in any one of the filter case and the indoor unit to operate the filter taking out means. The filter unit of the air conditioner, characterized in that it further comprises an operation switch. The method according to any one of claims 1, 2, 4, 5, The filter extracting means comprises a filter extracting motor provided in the filter case and a filter extracting mechanism provided between the filter extracting motor and the filter to draw out the filter to the outside by the filter extracting motor. Filter unit of air conditioner. The method of claim 6, The filter take-out mechanism includes a pinion formed on a rotation shaft of the filter take-out motor and a rack formed on one side of the filter. The method according to any one of claims 3 to 5, And said filter contamination indicating means is a display installed in at least one of an indoor unit and a filter case.

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