WO2019125046A1

WO2019125046A1 - Ceiling-type indoor unit of air conditioner

Info

Publication number: WO2019125046A1
Application number: PCT/KR2018/016459
Authority: WO
Inventors: 김형준
Original assignee: 엘지전자 주식회사
Priority date: 2017-12-21
Filing date: 2018-12-21
Publication date: 2019-06-27

Abstract

A ceiling-type indoor unit of an air conditioner according to the present invention allows a suction grill to remain in contact with a front body while being supported by wires, thereby allowing the suction grill to descend instantly upon the operation of an elevator, has four wire guiders support the respective wires, thereby distributing the weight of the suction grill, and has the space between a guider body and a block formed to be smaller than the diameter of each wire, thereby preventing the wire from escaping between the guider body and the block.

Description

Ceiling type indoor unit of air conditioner

The present invention relates to a ceiling-type indoor unit of an air conditioner, and more particularly, to a ceiling-type indoor unit capable of automatically lowering or raising a suction grill.

Generally, an air conditioner is composed of a compressor, a condenser, an evaporator, and an inflator, and supplies air or warm air to a building or a room using an air conditioning cycle.

The air conditioner is structurally divided into a separable type in which the compressor is disposed outdoors and an integral type in which the compressor is integrally manufactured.

In the separate type, an indoor heat exchanger is installed in an indoor unit, an outdoor heat exchanger and a compressor are installed in an outdoor unit, and two devices separated from each other are connected to each other by a refrigerant pipe.

In the integrated type, the indoor heat exchanger, the outdoor heat exchanger and the compressor are installed in one case. The integrated type air conditioner includes a window type air conditioner for directly mounting the apparatus on a window, and a duct type air conditioner for connecting the suction duct and the discharge duct to the outside of the room.

The separate type air conditioner is generally classified according to the installation type of the indoor unit.

A stand-type air conditioner in which an indoor unit is vertically installed in an indoor space is referred to as a stand-type air conditioner. A wall-mounted type air conditioner in which an indoor unit is installed on a wall of the room is called a ceiling-type indoor unit.

In the case of a ceiling-mounted indoor unit, the suction grille is arranged to face the bottom. The suction grille is provided with a filter for filtering foreign substances of the room air, and the filter can be separated for cleaning. The user needs to periodically remove the suction grille from the case for filter cleaning.

However, in the case of the ceiling type indoor unit, since the suction grille is disposed on the ceiling of the room, the user has to climb over a structure such as a chair to separate the suction grille.

[Prior Art Literature]

[Patent Literature]

Korea Patent No. 10-0679838 B1

An object of the present invention is to provide a ceiling-type indoor unit of an air conditioner in which the entire suction grille rises or falls in the vertical direction.

An object of the present invention is to provide a ceiling-type indoor unit of an air conditioner having a structure in which four wires can be simultaneously unwound or wound by using two motors.

It is an object of the present invention to provide a ceiling-type indoor unit capable of preventing fall of the suction grille when the suction grille rises or falls.

An object of the present invention is to provide a ceiling-type indoor unit of an air conditioner capable of minimizing shaking when the suction grille rises or falls.

An object of the present invention is to provide a ceiling-type indoor unit of an air conditioner capable of minimizing separation of foreign matter adhered to a filter when the suction grille rises or falls.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

The present invention prevents the wire from being separated between the guider body and the block because the gap between the guider body and the block is formed smaller than the diameter of the wire.

The present invention can elevate or lower the entire suction grille vertically by releasing or winding a plurality of wires connected to the suction grille by the elevator.

Since the four wires support four portions in the vicinity of the corners of the suction grille, the swing of the suction grille in the ascending or descending process can be minimized.

Since one motor controls a pair of wires disposed on one side of the suction grille, the present invention minimizes a variation in elevation of one side of the suction grille.

Since the four wires are supported by the respective guiders disposed in the case, it is possible to minimize the fluctuation in the ascending or descending process of the suction grille.

In the present invention, since four wires support four portions in the vicinity of the corners of the suction grille, even if any one wire is damaged, the remaining three can support the suction grille, thereby preventing the suction grille from falling down.

The present invention suppresses the swinging of the suction grille and minimizes the separation of the foreign matter adhered to the filter in the descent of the suction grille because the four wires are supported by the respective guiders disposed in the case.

The present invention relates to a case which is suspended from a ceiling of a room and has a suction port and a discharge port formed toward a lower side thereof; A suction grille disposed apart from the case and covering a suction port of the case; A suction grill coupled to the suction grill through the 1-1 wire and the 1-2 wire and wound or unwound simultaneously with the 1-1 wire and the 1-2 wire to raise one side of the suction grill A first unit for lowering or lowering the first unit; A first wire guider disposed in the case and supporting the first wire connecting the suction grill and the first unit, the first wire guider positioned above the suction grill; And a second wire guider disposed in the case and supporting the first wire connecting the suction grill and the first unit and positioned above the suction grill, Each of the two wire guiders comprising: a block disposed at an inner edge of the case; And a guider assembled in the block, rotatable with respect to the block, and supporting the wires,

The guider includes: a guider body having a rotational center in a horizontal direction; A wire groove disposed on an outer surface of the guider body and recessed toward the rotation center, the wire groove being inserted and supported; And a guider shaft passing through the center of rotation of the guider body and rotatably assembled to the block, wherein the gap between the guider body and the block is smaller than the diameter of the wire.

The block includes a fixing block disposed at an inner edge of the case in which the suction port is formed and protruding toward the first unit or the second unit; And an assembling block assembled to the fixed block, wherein the guider shaft can be rotatably assembled to the assembling block.

The guider shaft may be detachable from the guider body and may be installed to pass through a rotation center of the guider body.

The assembly block includes: an assembly block body assembled with the stationary block and fixed to the stationary block; And a guider installation space disposed outside the assembly block body and into which the guider is rotatably inserted. The guider installation space may be formed in a vertical direction, and the guider shaft may intersect the guider installation space.

The guider shaft may be positioned within the height of the guider installation space.

Wherein the guider installation space is formed in the assembly block body and is formed in a rotating direction of the guider and is opposed to one side surface of the guider; A third guider mounting wall formed on the assembly block body, the third guider mounting wall being formed in a rotating direction of the guider and opposed to the other side surface of the guider; And a second guider mounting wall formed on the assembly block body, the second guider mounting wall being formed in the guider axial direction and connecting the first guider mounting wall and the third guider mounting wall, The distance between the bodies may be smaller than the diameter of the wire.

And a detachment protrusion located above the guider shaft and protruding from the second guider mounting wall to an outer surface of the guider body, wherein a gap between the detachment protrusion and the guider body is smaller than a diameter of the wire .

The separation preventing protrusion may form an interlock with the outer surface of the guider body when the guider moves up and down.

The detachment protrusion may be formed in an arc shape and may be formed to surround the outer surface of the guider body.

And a guider shaft groove formed outside the assembly block body and into which the guider shaft is rotatably inserted,

The guider axial groove may be concave in a downward direction from an upper side of the assembly block body, and intersect with the guider installation space.

A first axial wall formed in the assembly block body and formed in the longitudinal direction of the guider shaft; A third axial wall formed in the assembly block body and formed in the longitudinal direction of the guider shaft, the third axial wall facing the first axial wall; A second axial wall formed on the assembly block body, intersecting with the longitudinal direction of the guider shaft, and connecting the first axial wall and the third axial wall; And a separation preventing protrusion disposed on at least one of the first axial wall and the third axial wall and protruding toward the third axial wall or the first axial wall side to form an interlock with the upper side of the guider shaft.

The guider axis of the first wire guider and the guider axis of the second wire guider may be arranged in a line.

A second grill disposed on the inside of the case, coupled with the suction grill through the second-1 wire and the second grill-2 wire, and wound and unwound simultaneously with the second-first wire and the second- A second unit for lowering or lowering the first unit; A third wire guider disposed in the case and supporting the second-1 wire connecting the suction grill and the second unit, the third wire guider positioned above the suction grill; And a fourth wire guider disposed in the case and supporting the second -2 wire connecting the suction grill and the second unit and positioned above the suction grill.

The first 1-1 wire and the 1-2 wire are arranged in a line, and the 2-1 wire and the 2-2 wire are arranged in a line, and when viewed in the bottom view, The first wire and the first wire may be aligned in a line and the arrangement direction of the second wire and the second wire may be parallel.

The first wire guider and the second wire guider are positioned within the height of the first unit and the third wire guider and the fourth wire guider can be positioned within the height of the second unit.

Wherein the suction grille includes: a first wire fixing part to which the 1-1 wire is fixed; A second wire fixing part to which the 1-2 wire is fixed; A third wire fixing portion to which the second-1 wire is fixed; Wherein the first wire fixing portion is located on the lower side of the first wire guider and the second wire fixing portion is located on the lower side of the second wire guider The third wire fixing part may be positioned below the third wire guide, and the fourth wire fixing part may be positioned below the fourth wire guide.

Wherein the first wire guider and the second wire guider are located in the longitudinal direction of the first unit and are disposed apart from the first unit, and the third wire guider and the fourth wire guider are disposed in the longitudinal direction of the second unit And may be disposed apart from the second unit.

The first wire guider, the second wire guider, the third wire guider, and the fourth wire guider may be disposed at the same height with respect to the bottom surface of the case.

The bottom surface of the case is formed in a rectangular shape and the bottom surface forms four corners, the first wire guider is disposed at one of two corners disposed on one side, and the second wire guider The third wire guider is disposed on one of the two corners disposed on the other side and the fourth wire guider is disposed on the other one of the two corners disposed on the other side .

The case includes a case housing suspended from a ceiling of a room and having a bottom opened; And a front body covering the bottom surface of the case housing and having the suction port and the discharge port formed therein, wherein the first unit and the second unit are disposed inside the case housing, and the first wire guider, The third wire guider, and the fourth wire guider are disposed on the front body, and the suction grill may be disposed on the lower side of the front body.

The ceiling-type indoor unit of the air conditioner according to the present invention has one or more of the following effects.

First, the present invention is advantageous in that the elevator can automatically wind up or lower the suction grille by winding or unwinding four wires connected to the suction grille at the same time.

Second, since the suction grille is supported at four points through four wires, the suction grill can be stably lifted or lowered.

Third, since the suction grille is held in contact with the front body in a state in which the suction grille is supported by the four wires, the suction grill is lowered immediately after the operation of the elevator.

Fourth, since the four wire guiders support each wire, the load of the suction grille can be dispersed and the load applied to the elevator can be minimized.

Fifth, since the present invention keeps each wire inserted into the wire groove of the wire guider, the wire can be prevented from being detached from the guider.

Sixth, since the gap between the guider body and the block is formed to be smaller than the diameter of the wire, the wire can be prevented from being separated from between the guider body and the block.

Seventh, since each wire guider is located on the upper side of the wire fixing portion, the swing of the suction grille can be minimized in the process of winding and unwinding each wire.

Eighth, since the guider is pressed against the assembly block by the load applied to the wire, it is possible to prevent the guider from being separated from the assembly block even if the guider is rotated by the movement of the wire.

In the ninth aspect of the present invention, since the detachment protrusion formed on the assembly block is formed to surround the outer surface of the guider, it is possible to prevent the wire from being separated between the guider body and the assembly block.

In the tenth aspect of the present invention, the detachment preventing protrusion formed on the assembling block is disposed higher than the guider shaft and protrudes toward the guider body, thereby preventing the guider from being detached from the guider mounting space.

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

Fig. 2 is an operational example of Fig. 1. Fig.

3 is a cross-sectional view of Fig.

4 is an exploded perspective view showing the front panel of FIG.

Fig. 5 is a plan view showing the arrangement of the front panel and the elevator of Fig. 1;

6 is a bottom view of the front panel shown in Fig.

Figure 7 is a bottom perspective view of the elevator of Figure 2;

Figure 8 is a bottom view of the front panel and elevator of Figure 2;

FIG. 9 is a perspective view showing the internal structure of the elevator of FIG. 2;

10 is a plan view of Fig.

FIG. 11 is an operational example of an elevator according to the first embodiment of the present invention. FIG.

12 is an exemplary view showing a wire installation structure according to the first embodiment of the present invention.

13 is a bottom view of the front panel shown in Fig.

14 is a plan view of the suction grill shown in Fig.

15 is an exploded perspective view of the wire guider shown in Fig.

16 is an exploded perspective view of the wire guider shown in Fig. 15 in another direction.

17 is a plan view of the wire guider shown in Fig.

18 is a side sectional view of the wire guider shown in Fig.

19 is a perspective view showing the assembly structure of the guider shaft shown in Fig.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view illustrating an indoor unit of an air conditioner according to an embodiment of the present invention. Fig. 2 is an operational example of Fig. 1. Fig. 3 is a cross-sectional view of Fig. 4 is an exploded perspective view showing the front panel of FIG. Fig. 5 is a plan view showing the arrangement of the front panel and the elevator of Fig. 1; 6 is a bottom view of the front body shown in Fig. Figure 7 is a bottom perspective view of the elevator of Figure 2; Figure 8 is a bottom view of the front panel and elevator of Figure 2; FIG. 9 is a perspective view showing the internal structure of the elevator of FIG. 2; 10 is a plan view of Fig. FIG. 11 is an operational example of an elevator according to the first embodiment of the present invention. FIG. 12 is an exploded perspective view of the roller shown in Fig. Fig. 13 is an exemplary diagram showing the arrangement of the wires shown in Fig. 2. Fig. 14 is a plan view of the suction grill shown in Fig. 15 is an exploded perspective view of the wire guider shown in Fig. 16 is an exploded perspective view of the wire guider shown in Fig. 15 in another direction. 17 is a plan view of the wire guider shown in Fig. 18 is a side sectional view of the wire guider shown in Fig. 19 is a perspective view showing the assembly structure of the guider shaft shown in Fig.

The indoor unit of the air conditioner according to the present embodiment includes a case 100 having a suction port 101 and a discharge port 102, an indoor heat exchanger 130 disposed inside the case 100, And an indoor air blowing fan 140 for flowing air to the air inlet 101 and the air outlet 102.

The case 100 further includes a suction grill 320 disposed toward the floor of the room and an elevator 500 for vertically raising or lowering the suction grill 320 is disposed inside the case 100 do.

When the operation signal of the user is inputted, the elevator 500 is operated and the four

wires

511, 512, 521 and 522 are simultaneously released or wound by the operation of the elevator 500, The suction grill 320 coupled to the

suction ports

511, 512, 521, and 522 can be moved in the vertical direction.

The structure for raising and lowering the suction grille 320 will be described later in more detail.

In the present embodiment, the case 100 includes a case housing 110 and a front panel 300. The case housing 100 is hung from the ceiling of the room through a hanger (not shown), and the lower side is opened. The front panel 300 covers the opened face of the case housing 110 and is disposed toward the floor of the room and is exposed to the room and the inlet port 101 and the outlet port 102 are formed.

The case 100 may be variously formed in accordance with the production mode, and the configuration of the case 100 does not limit the idea of the present invention.

The suction port 101 is disposed at the center of the front panel 300 and the discharge port 102 is disposed outside the suction port 101. The number of the suction ports 101 or the number of the discharge ports 102 is irrelevant to the idea of the present invention. In this embodiment, one suction port 101 is formed, and a plurality of the discharge ports 102 are arranged.

In this embodiment, the suction port 101 is formed in a rectangular shape when viewed from the bottom, and the discharge port 102 is spaced apart from the edges of the suction port 101 by a predetermined distance.

The indoor heat exchanger 130 is disposed between the suction port 101 and the discharge port 102 and the indoor heat exchanger 130 divides the inside of the case 100 into the inside and outside. The indoor heat exchanger 130 is disposed vertically in this embodiment.

An indoor ventilation fan (140) is located inside the indoor heat exchanger (130).

When viewed in a top view or a bottom view, the overall shape of the indoor heat exchanger is formed as "", and some sections can be separated.

The indoor heat exchanger 130 is arranged to vertically enter the air discharged from the indoor air blowing fan 140.

A drain pan 132 is installed inside the case 100 and the indoor heat exchanger 130 is mounted on the drain pan 132. The condensed water generated in the indoor heat exchanger 130 may flow into the drain pan 132 and then be stored. The drain pan 132 is provided with a drain pump (not shown) for discharging the collected condensed water to the outside.

The drain pan 132 may be formed with a sloping surface having a directionality for collecting and storing the condensed water flowing down from the indoor heat exchanger 130 to one side.

The indoor ventilation fan 140 is located inside the case 100 and is disposed above the suction port 101. The indoor air blowing fan 140 uses a centrifugal air blower that sucks air into the center and discharges air in the circumferential direction.

The indoor ventilation fan 140 includes a bell mouth 142, a fan 144, and a fan motor 146.

The bell mouth 142 is disposed above the suction grille 320 and is positioned below the fan 144. [ The bell mouth 142 guides the air that has passed through the suction grill 320 to the fan 144.

The fan motor 146 rotates the fan 144. The fan motor 146 is fixed to the case housing 110. The fan motor 146 is disposed above the fan 144. At least a portion of the fan motor 146 is positioned higher than the fan 144.

The motor shaft of the fan motor 146 is disposed downward, and the fan 144 is coupled to the motor shaft.

The indoor heat exchanger 130 is located outside the edge of the fan 144. At least a part of the fan 144 and the indoor heat exchanger 130 are arranged on the same horizontal line. And at least a portion of the bell mouth 142 is inserted into the fan 144. At least a portion of the bell mouth 142 overlaps the fan 144 in the up-and-down direction.

The indoor heat exchanger (130) is disposed inside the case housing (110), and divides the inner space of the case housing (110) inside and outside.

An inner space surrounded by the indoor heat exchanger 130 is defined as a suction passage 103 and an outer space of the indoor heat exchanger 130 is defined as a discharge passage 104. [

The indoor air blowing fan 140 is disposed in the suction passage 103. The discharge passage 104 is located between the outside of the indoor heat exchanger 130 and the side wall of the case housing 110.

In the top view or the bottom view, the suction passage 103 is the inside surrounded by "? &Quot; of the indoor heat exchanger, and the discharge passage 104 is the outside surrounded by "? "Of the indoor heat exchanger.

The suction passage 103 communicates with the suction port 101 and the discharge passage 104 communicates with the discharge port 103.

The air flows from the lower side of the suction passage 103 to the upper side and flows from the upper side to the lower side of the discharge passage 104. The flow direction of the air is switched 180 degrees with reference to the indoor heat exchanger 130.

The suction port (101) and the discharge port (102) are formed on the same surface of the front panel (300).

The suction port (101) and the discharge port (102) are arranged to face in the same direction. In this embodiment, the suction port 101 and the discharge port 102 are disposed to face the floor of the room.

When the front panel 300 is curved, the discharge port 102 may be formed to have a slight side inclination. However, the discharge port 102 connected to the discharge path 104 is formed to be directed downward.

A vane module 200 is disposed to control the direction of air discharged through the discharge port 102.

The front panel 300 is coupled to the case housing 110 and includes a front body 310 having the inlet 101 and the outlet 102 and a plurality of grill holes 321. The inlet 101 A suction grill 320 covering the suction grill 320 and a free filter 330 detachably assembled to the suction grill 320 and a suction fan 320 installed in the front body 310 to adjust the air flow direction of the discharge port 102 And a vane module 200 for controlling the vane module 200.

The suction grille 320 is disposed separately from the front body 310. Although the suction grill 320 is in close contact with the front body 310, a structure for assembling or coupling the front body 310 and the suction grill 320 is not disposed.

The suction grill 320 is pulled by the wire and kept in a state of being in close contact with the front body 310, and can be lowered or lifted or lowered according to the operation of the elevator 500.

The suction grill 320 can be raised or lowered in the vertical direction in the front body 310 by the elevator 500. The suction grille 320 covers the entire suction port 101.

The elevator 500 and the suction grill 320 are connected through four wires, and the elevator 500 winds or loosens the wire to move the suction grill 320 in the vertical direction.

In the present embodiment, the suction grill 320 is formed with a plurality of grill holes 321 in a lattice shape. The grill hole 321 and the suction port 101 are communicated with each other.

A prefilter 330 is disposed above the suction grille 320. The pre-filter 330 filters the air sucked into the case 100. The pre-filter 330 is positioned above the grill hole 321 and filters the air that has passed through the suction grill 320.

The discharge port 102 is formed in the form of a long slit along the edge of the suction port 101. The vane module 200 is positioned on the discharge port 102 and is coupled to the front body 310.

In the present embodiment, the vane module 200 may be separated to the lower side of the front body 310. That is, the vane module 200 is disposed independently of the coupling structure of the front body 310, and can be independently separated from the front body 310. The structure will be described in more detail below.

The front body 310 is coupled to the lower side of the case housing 110 and is disposed toward the interior of the case. The front body 310 is installed on the ceiling of the room and is exposed to the room.

The front body 310 is coupled to the case housing 110 and the case housing 110 supports the load of the front body 310. The front body 310 supports loads of the suction grille 320 and the prefilter 330.

The front body 310 is formed in a rectangular shape when viewed from the top view. The shape of the front body 310 may be variously formed.

The upper surface of the front body 310 may be formed horizontally to be adhered to the ceiling, and the lower surface may have a curved surface at an edge.

A suction port 101 is disposed at the center of the front body 310 and a plurality of discharge ports 102 are disposed outside the suction port 101.

In the top view, the suction port 101 may be formed in a square shape, and the discharge port 102 may be formed in a rectangular shape. The discharge port 102 may be formed in a slit shape longer than the width.

The front body 310 includes a front frame 312, a side cover 314, and a corner cover 316.

The front frame 312 provides the load and rigidity of the front panel 300 and is fastened to the case housing 110. The suction port (101) and the four discharge ports (102) are formed in the front frame (312).

In the present embodiment, the front frame 312 includes a side frame 311 and a corner frame 313.

The corner frame 313 is disposed at each corner of the front panel 300. The side frames 311 are coupled to the two corner frames 313. The side frame 311 includes an inner side frame 311a and an outer side frame 311b.

The inner side frame 311a is disposed between the suction port 101 and the discharge port 102 and couples the two corner frames 313. The outer side frame 311b is disposed outside the discharge port 102. [

In this embodiment, four inner side frames 311a and four outer side frames 311b are provided.

The suction port (101) is located inside the four inner side frames (311a). The discharge port 102 is formed so as to be surrounded by two corner frames 313, an inner side frame 311a and an outer side frame 311b.

The side cover 314 and the corner cover 316 are coupled to the bottom surface of the front frame 312. The side cover 314 and the corner cover 316 are exposed to the user, and the front frame 312 is not visible to the user.

The side cover 314 is disposed at an edge of the front frame 312 and the corner cover 316 is disposed at an edge of the front frame 312.

The side cover 314 is made of a synthetic resin material and fastened to the front frame 312. Specifically, the side cover 314 is coupled to the side frame 311, and the corner cover 316 is coupled to the corner frame 313.

In the present embodiment, four side covers 314 and four corner covers 316 are provided. The side cover 314 and the corner cover 316 are coupled to the front frame 312 and connected to each other by a single structure. In the front panel 300, the four side covers 314 and the four corner covers 316 form one edge.

The side cover 314 is disposed below the side frame 311 and the corner cover 316 is disposed below the corner frame 313. [

The four side covers 314 and the four corner covers 316 are assembled to form a quadrangular rim. The four side covers 314 and the four corner covers 316 connected to each other are defined as the front decor 350. [

The front decor 350 forms a deco outer border 351 and an inner border 352.

When viewed in a top view or a bottom view, the deco outer border 351 is formed in a rectangular shape, and the decoror border 352 is also formed in a rectangular shape as a whole. However, the edge of the decorative border forms a predetermined curvature.

The suction grille 320 and the four vane modules 200 are disposed inside the decoror borders 352. Then, the suction grille 320 and the four vane modules 200 abut against the decoror borders 352.

In the present embodiment, four side covers 314 are disposed, and each side cover 314 is coupled to the front frame 312. The outer edge of the side cover 314 forms part of the deco outer border 351 and the inner edge forms part of the decoror border 352.

Particularly, the inner edge of the side cover 314 forms the outer boundary of the discharge port 102. The inner edge of the side cover 314 is defined as a side decoror border 315. [

In the present embodiment, four corner covers 316 are disposed, and each of the corner covers 316 is coupled to the front frame 312. The outer edge of the corner cover 316 forms a part of the deco outer border 351 and the inner edge forms a part of the decoror border 352.

The inner edge of the corner cover 316 is defined as a corner decoror border 317. [

The corner decorainer 317 may be disposed to abut the suction grille 320. In the present embodiment, the inner edge of the corner cover 316 is arranged to face the suction grille 320, and the gap is spaced by a predetermined distance to form a gap 317a.

The side decor inner border 315 is spaced apart from the vane module 200 by a predetermined distance to form a gap 315a and is arranged to face the outer edge of the vane module 200. [

Thus, the decor inner border 352 is spaced apart from the outer edges of the four vane modules 200 and the suction grille 320 and forms a continuous gap.

A continuous gap formed by the four side decoupling border gap 315a and the four corner decenter border gap 317a is defined as a front decoupling gap 350a.

The front decor gap 350a is formed at the inner edge of the front decor 350. [ Specifically, the front decor gap 350a is formed by separating the outer edge of the vane module 200 and the suction grill 320 from the inner edge of the front decor 350. [

When the vane module 200 is not operated (when the indoor unit is stopped), the front decoupling gap 350a makes the suction grille 320 and the vane module 200 appear as a single structure.

The suction grille 320 is positioned below the front body 310. The suction grille 320 may be moved up and down in a state in which it is in close contact with the bottom surface of the front body 310.

The suction grill 320 includes a grill body 322, a plurality of grill holes 321 formed to vertically penetrate the grill body 322, and a plurality of grill holes 321 formed in the grill body 322, A fixed wire fixing portion 329 and a filter coupling portion 331 in which the pre-filter 330 is detachably assembled.

The suction grill 320 includes a grill body 322 disposed below the suction port 101 and communicating with the suction port 101 by a plurality of grill holes 321 formed in a rectangular shape, And a grill corner portion 327 formed to extend diagonally from the edge of the body 322.

The bottom surface of the grill body 322 and the bottom surface of the vane 210 may form a continuous surface. The bottom surface of the grill body 322 and the bottom surface of the corner cover 316 may form a continuous surface.

Inside the grill body 322, a plurality of grills 323 are arranged in a lattice form. The grid-shaped grill 323 forms a grill hole 321 having a rectangular shape. The portion where the grill 323 and the grill hole 321 are formed is defined as a suction portion.

The grill body 322 includes a grill 323 having a plurality of grill holes 321 and a grill body 324 disposed along the edge of the grill 323 and surrounding the grill 323, . When viewed in a top view or a bottom view, the suction portion is formed in a rectangular shape as a whole.

The pre-filter 330 is positioned above the suction portion and covers the suction portion.

Each of the corners of the suction portion is disposed to face each corner of the front panel 300, and more specifically to the corner cover 316.

When viewed in the bottom view, the grill body 322 is formed in a rectangular shape.

The outer edge of the grill body portion 324 is arranged to face the discharge port 102 or the front decor 350.

The grill body 324 includes a grill corner bordering 326 disposed opposite the corner cover 316 and a grill 326 formed on the grill body 324 to form the discharge port 102, Side border < RTI ID = 0.0 > 325. < / RTI >

The grill corner borders 326 may be curved around the inside of the suction grille 320 and the grill side borders 325 may be curved around the outside of the suction grille 320.

The grill body portion 324 further includes a grill corner portion 327 wrapped by the grill corner borders 326 and the two grill side borders 325. The grill corner portion 327 is protruded from the grill body portion 324 toward the corner cover 316 side.

The grill corner portion 327 is disposed at each corner of the grill body 322. The grill corner portions 327 extend toward the respective corners of the front panel 300.

In this embodiment, four grill corner portions 327 are disposed. For convenience of explanation, four grill corner portions 327 are formed on the first grill corner portion 327-1, the second grill corner portion 327-2, the third grill corner portion 327-3, And is defined as a corner portion 327-4.

The grille side borders 325 are formed in a concave shape from the outside to the inside.

A discharge port 102 is formed between the side cover 314 and the suction grille 320. More specifically, one discharge port 102 is formed between the side decoror borders 315 of the side cover 314 and the grill side borders 325 of the grill body 322. Discharge openings 102 are formed between the side decoror borders 315 and the grill side borders 325 arranged in four directions of the suction grille 320. [

In this embodiment, the length of the grille corner border 326 and the corner decoror border 317 are arranged to face each other. The length of the corner corner borders 326 and the length of the corner decoror borders 317 are the same. That is, the width of the corner cover 316 is equal to the width of the corner portion 327 of the grill. In addition, the inside width of the side cover 314 and the width of the grill side borders 325 are formed to be the same.

The grille side borders 325 are further divided as follows.

The grille side borders 325 form an inner boundary of the discharge opening 102. The side decor inner borders 315 and the corner decor inner borders 317 form the bar boundary of the discharge opening 102.

The grill side borders 325 are elongated in the longitudinal direction of the discharge port 102 and are connected to one side of the long straight line section 325a and connected to the suction grille 320, A second curve section 325b connected to the other side of the long straight line section 325a and having a center of curvature formed outside the suction grille 320, A first short straight line section 325d connected to the first curve section 325b and a second short straight line section 325e connected to the second curve section 325c.

A discharge port 102 is formed between the grill side borders 325 and the side decoror borders 315 and a vane module 200 is disposed in each of the discharge ports 102.

The inner edge 210a of the vane 210 of the vane module 200 faces the grill side borders 325 and the outer edge 210b of the vane 210 faces the side decorainer 315, Respectively.

On the other hand, the wire fixing portion 329 to which the other end of the wire is fixed protrudes upward from the grill body portion 324. Four wire fixing portions 329 are arranged and correspond to the

respective wires

511, 512, 521, and 522.

The wire fixing portion for fixing the other end of the 1-1 wire 511 is defined as a first wire fixing portion 329-1 and the wire fixing portion for fixing the other end of the 1-2 wire 512 is defined as a second wire fixing portion 329-1, Wire fixing portion 329-2 and wire fixing portion where the other end of the second-first wire 521 is fixed is defined as a third wire fixing portion 329-3, and the second-second wire 522 Is defined as a fourth wire fixing portion 329-4.

When viewed in a top view or a bottom view, the first wire fixing portion and the second wire fixing portion are symmetrical with respect to the direction of the motor shaft 541 of the first unit. When viewed in a top view or a bottom view, the third wire fixing portion and the fourth wire fixing portion are symmetrical with respect to the direction of the motor shaft 541 of the second unit.

The arrangement direction of the first wire fixing portion and the second wire fixing portion and the arrangement direction of the third wire fixing portion and the fourth wire fixing portion are parallel.

In this embodiment, the first wire fixing portion is located on the first grill corner portion 327-1 side, the second wire fixing portion is located on the second grill corner portion 327-2 side, 3 grill corner portion 327-3, and the fourth wire fixing portion is positioned on the fourth grill corner portion 327-4 side.

The wire fixing portion 329 is disposed outside the prefilter 330 and disposed on the grill body 322. Each of the wire fixing portions protrudes upward from the upper surface of the grill body 322.

The filter coupling portion 331 is a structure for fixing the pre-filter 330. Since the pre-filter 330 has to be periodically cleaned, the pre-filter 330 is detachably assembled to the filter engaging portion 331.

In this embodiment, the filter coupling portion 331 is configured to surround the edge of the pre-filter 330. The filter engagement portion 331 is disposed outside the grill 323 and may be disposed along the edge of the suction port 101 or the suction portion.

The filter coupling portion 331 protrudes upward from the upper surface of the grill body portion 324 and forms an interval between the filter coupling portion 331 and the upper surface of the grill body portion 324 so that the pre- .

&Lt; Configuration of pre-filter &

The prefilter 330 is disposed above the suction grille 320. The pre-filter (330) filters foreign matter having a large volume from the air sucked through the inlet (101).

The pre-filter 330 is disposed above the grill 323 and covers the entire suction portion.

The prefilter 330 is detachably assembled to the suction grille 320 and is lowered together when the suction grille 320 is lowered.

&Lt; Configuration of elevator &

The elevator 500 can wind up or unwind the four

wires

511, 512, 521, and 522 at the same time to raise or lower the suction grill 320. The user can operate the elevator 500 by inputting an operation signal to the control unit.

The elevator 500 is controlled by the control unit. The elevator 500 supports the suction grille 320 at four points. The elevator 500 supports the suction grill 320 through four

wires

511, 512, 521 and 522 and winds up or unwinds the suction grill 320 to raise or lower the suction grill 320 .

The elevator 500 is operated to wind or unwind four

wires

511, 512, 521 and 522 at the same time so that the suction grill 320 can be raised or lowered in a horizontal state.

The elevator 500 comprises a first unit 510 and a second unit 520.

The first unit 510 can simultaneously wind or unwind a pair of wires and the second unit 520 can simultaneously wind or unwind a pair of wires.

A pair of wires connected to the first unit 510 is defined as a 1-1 wire 511 and a 1-2 wire 512 and a pair of wires connected to the second unit 520 is defined as a 2- 1 wire 521 and a second-second wire 522, respectively.

The first unit 510 can wind or loosen the 1-1 wire 511 and the 1-2 wire 512 at the same time. The second unit 520 may wind or unwind the second-1 wire 521 and the second-second wire 522 simultaneously.

One end of the 1-1 wire 511 and one end of the 1-2 wire 512 are coupled to the first unit 510 and the other end of the 1-1 wire 511 and the 1-2 The other end of the wire 512 is coupled to one side of the suction grille 320.

One end of the 2-1 wire 521 and one end of the 2-2 wire 522 are coupled to the second unit 520 and the other end of the 2-1 wire 521 and the 2-2 wire 2- The other end of the wire 522 is coupled to the other side of the suction grille.

When the 1-1 wire 511 and the 1-2 wire 512 are disposed on the left side, the 2-1 wire 521 and the 2-2 wire 522 are disposed on the right side. Alternatively, when the 1-1 wire 511 and the 1-2 wire 512 are disposed on the front side, the 2-1 wire 521 and the 2-2 wire 522 are arranged on the rear side .

5, the 1-1 wire 511 and the 1-2 wire 512 are located on the left side and arranged in the front-rear direction, and the 2-1 wire 521 and the 2-2 wire 522 are located on the right side, and are arranged in the front-rear direction.

The first 1-1 wire 511 and the 1-2 wire 512 are arranged in a line and the 2-1 wire 521 and the 2-2 wire 522 are also arranged in a line .

The 1-1 wire 511 and the 2-1 wire 521 are arranged in parallel, and the 1-2 wire 512 and the 2-2 wire 522 are arranged in parallel.

The first unit 510 and the second unit 520 are disposed symmetrically with respect to each other. When the first unit 510 is disposed on the left side of the case 100, the second unit 520 is disposed on the right side of the casing 100. Similarly, when the first unit 510 is disposed on the front side of the case 100, the second unit 520 is disposed on the rear side of the case 100.

The first unit 510 is disposed on the left side of the case 100 and the second unit 520 is disposed on the right side of the case 100 in this embodiment.

The elevator 500 provides a structure that causes the suction grill 320 to rise or fall in a horizontal state by simultaneously winding or unwinding four wires simultaneously.

Since the configurations of the first unit 510 and the second unit 520 are the same, the structure of the first unit 510 will be described as an example.

&Lt; Configuration of First Unit >

The first unit 510 includes a drum 530 to which one end of the 1-1 wire 511 and one end of the 1-2 wire 512 are respectively fixed and a drum motor 540 that rotates the drum 530. [ And a first roller box (511) for aligning the position of the first wire (511) when the first wire (511) is wound or unwound, (512) is arranged to penetrate the first wire (512), and when the first wire (512) is wound or unwound, the wire (550) 2 roller box 560, and a rotation amount sensing device 600 for sensing the amount of rotation of the drum 530.

The first unit 510 may be disposed in any one of the front body 310, the cabinet housing 110, and the bell mouth 142.

The drum 530, the drum motor 540, the first roller box 550 and the second roller box 560 constituting the first unit 510 are connected to the front body 310, the cabinet housing 110, The bell mouth 142 may be disposed in any one of the bell mouth 142 and the bell mouth 142.

In this embodiment, a unit case 590 for forming an outer appearance of the first unit 510 is arranged to facilitate replacement and repair. A drum 530, a drum motor 540, a first roller box 550, a second roller box 560, and a rotation amount sensing device 600 are disposed inside the unit case 590.

The unit case 590 may be disposed in any one of the front body 310, the cabinet housing 110, and the bell mouth 142. In this embodiment, the unit case 590 is installed in the bell mouth 142. The unit case 590 is disposed above the suction grille 320.

When a unit case needs to be distinguished, a unit case disposed in the first unit is defined as a first unit case, and a unit case disposed in the second unit is defined as a second unit case.

The drum 530 is formed in a cylindrical shape and includes a drum body 535 to which one ends of the 1-1 wire 511 and the 1-2 wire 512 are respectively fixed, And a partition 533 for partitioning the first zone 531 in which the first 1-1 wire 511 is wound and the second zone 532 in which the 1-2 wire 512 is wound, And a 1-1 barrier 534 disposed in the drum body 535 for preventing the 1-1 wire 511 wound in the first zone 531 from being detached from the drum body 535. [ And a second 1-2 barrier 536 disposed in the drum body 535 for preventing the first wire 1-25 wound in the second zone 532 from being released from the drum body 535. [ ).

The drum body 535 is formed in a cylindrical shape. Unlike the present embodiment, the drum body 535 may be formed in various shapes. A groove may be formed on the outer circumferential surface of the drum body 535 to facilitate alignment during winding of the wire. The grooves may be formed in a spiral shape along the outer peripheral surface of the drum body 535.

The partition 533 is disposed in the middle with respect to the longitudinal direction of the drum body 535. The partition 533 is formed protruding radially outward of the drum body 535. In the present embodiment, the partition 533 is formed in a ring shape, and the center of the partition 533 is disposed on the same axis line as the axis center C of the drum body 535. The ring shape is disposed so as to protrude in the radial direction along the outer peripheral surface of the drum body 535.

The axis center C of the drum body 535 intersects with the 1-1 wire 511 or the 1-2 wire 512.

The partition 533 divides the outer circumferential surface of the drum body 535 into a first zone 531 and a second zone 532.

The 1-1 wire 511 is located in the first zone 531 and wound or unwound in the first zone 531. The 1-2 wire 512 is located in the second zone 532 and is wound or unwound in the second zone 532.

The partition 533 prevents the wire from going out of the area and winding.

The 1-1 barrier 534 prevents the 1-1 wire 511 wound in the first zone 531 from falling out of the drum body 535. The 1-2 barrier 536 prevents the 1-2 wire 512 wound in the second zone 532 from falling out of the drum body 535.

The 1-1 barrier 534 is protruded radially outward of the drum body 535. The 1-2 barrier 536 is disposed so as to protrude outward in the radial direction of the drum body 535.

In the present embodiment, the 1-1 barrier 534 and the 1-2 barrier 536 are formed in a ring shape along the outer circumferential surface of the drum body 535. The ring shapes of the 1-1 barrier 534 and the 1-2 barrier 536 are arranged to protrude in the radial direction along the outer circumferential surface of the drum body 535.

One end of the 1-1 wire 511 is fixed to the first section 531 and one end of the 1-2 wire 512 is fixed to the second section 532.

One end of the 1-1 wire 511 may be fixed to one of the drum body 535, the partition 533, and the 1-1 barrier 534 forming the first section 531.

In this embodiment, one end of the 1-1 wire 511 is fixed to the outer peripheral surface of the drum body 535 of the first section 531. In this embodiment, one end of the first wire 512 is fixed to the outer circumferential surface of the drum body 535 of the second zone 532.

A part of the configuration of the rotation amount sensing device 600 may be disposed on the drum 530 to sense the amount of rotation of the drum 530. [ A rotation sensing factor 601 is arranged to sense the amount of rotation of the drum 530. In the present embodiment, the rotation sensing factors 601 are arranged at regular intervals with respect to the circumferential direction with respect to the axis center C of the drum 530. The rotation sensing factor 601 may be disposed in at least one of the 1-1 barrier 534 and the 1-2 barrier 536.

The drum motor 540 is assembled to the drum 530 with a motor shaft 541. The axial center C of the motor shaft 541 and the drum 530 coincide with each other. In this embodiment, the stepping motor is used as the drum motor 540.

The gears may be arranged to provide the rotational force of the drum motor 540 to the drum 530, unlike the present embodiment. The rotation amount of the drum 530 and the rotation speed of the drum 530 can be controlled more precisely through the combination of the gears.

The arrangement directions of the axis center C, the 1-1 wire 511 and the 1-2 wire 512 are crossed. In this embodiment, the axial center C, the 1-1 wire 511, and the 1-2 wire 512 are disposed orthogonal to each other.

One end of the 1-1 wire 511 and one end of the 1-2 wire 512 are symmetrical with respect to the axis center C. [

The first 1-1 wire 511 is wound on the upper side of the drum body 535 to wind or unwind the first 1-1 wire 511 and the 1-2 wire 512 simultaneously, (512) is wound on the lower side of the drum body (535).

A first roller box 550 and a second roller box 560 are disposed in the unit case 590 of the first unit 510. The first roller box 550 and the second roller box 560 are disposed in the unit case 590 of the second unit 520. [

The first roller box 550 is connected to the drum body 535 when the 1-1 wire 511 is wound or unwound in the first section 531 of the drum 530, .

If the first 1-1 wire 511 forms a uniform layer on the outer circumferential surface of the drum 530, a difference in length from the first 1-2 wire 512 is formed by the thickness of the wire.

When the first wire 511 wrapped around the first zone 531 and the first and second wire rods 512 wrapped around the second zone 532 form a nonuniform layer, Lt; / RTI >

The second roller box 560 is connected to the drum body 535 when the 1-2 wire 512 is wound or unwound in the second section 532 of the drum 530. [ ).

The first roller box 550 and the second roller box 560 are disposed symmetrically with respect to the intersection of the partition 533 and the center core C when viewed from the top view.

Since the first roller box 550 and the second roller box 560 have the same configuration, the first roller box 550 will be described as an example.

The first roller box 550 includes a box 555 fixed to the unit case 590 and a second roller box 550 disposed inside the box 555 and in contact with the 1-1 wire 511, A first roller 551 that is rotated by friction when the wire 511 moves and is disposed farthest from the drum 530 and a second roller 553 disposed inside the box 555 and in contact with the 1-1 wire 511 A fourth roller 554 which is rotated by friction when the first wire 1-15 is moved and is disposed closest to the drum 530 and a fourth roller 554 disposed inside the box 555, 1-1 wire 511 and is rotated by friction upon movement of the 1-1 wire 511 and disposed between the first roller 551 and the fourth roller 554, A second roller 552 disposed movably in the horizontal direction by the tension of the wire 511 and a second roller 552 disposed inside the box 555 and being in contact with the 1-1 wire 511, One Is disposed between the second roller 552 and the fourth roller 554 and is arranged so as to be movable in the horizontal direction by the tension of the 1-1 wire 511 And a third roller 553.

A first roller 551 is disposed at a position farthest from the drum 530, a second roller 552 is disposed at a position farther from the drum 530, a third roller 553 is disposed at a position farther from the drum 530 , The fourth roller 554 is positioned closest to the drum.

The first roller 551, the second roller 552, the third roller 553 and the fourth roller 554 are assembled to

respective roller shafts

551a, 552a, 553a and 554a, And can be rotated around the

roller shafts

551a, 552a, 553a, and 554a. The

roller shafts

551a, 552a, 553a, and 554a are arranged in a horizontal direction.

At least one of the first roller 551, the second roller 552, the third roller 553 and the fourth roller 554 may be rotated in a fixed state while the other may be rotated while being moved along the roller axis have.

In this embodiment, the first roller 551 is a fixed roller that is not moved along the roller axis. In the present embodiment, the first roller 551 is rotated around the roller shaft 551a in a state where the first roller 551 is assembled to the roller shaft 551a.

The second roller 552, the third roller 553, and the fourth roller 554 are movable rollers that are movable in the horizontal direction along the respective roller axes. In this embodiment, the second roller 552, the third roller 553 and the fourth roller 554 are rotatable in a state where they are assembled to the

roller shafts

552a, 553a, and 554a. When a force is applied to the second roller 552, the third roller 553 and the fourth roller 554 (for example, the tension of the wire), the

roller shaft

552a, 553a, and 554a Can be moved. The

rollers

552, 553 and 554 can be moved relative to each other.

The 1-1 wire 511 is aligned in line with the drum 530 by the relative movement of the second roller 552, the third roller 553 and the fourth roller 554.

A wire guard 551b is disposed at a predetermined distance from the first roller 551. A 1-1 wire 511 is disposed between the wire guard 551b and the first roller 551. The wire guard 551b prevents the wire wound on the roller from being separated from the roller.

The wire guards 552b, 553b and 554b are also disposed on the second roller 552, the third roller 553 and the fourth roller 554, respectively.

The outermost first roller 551 excludes axial movement, thereby preventing axial movement of the wire. When the first roller 551 positioned outside is moved along the roller shaft 551a, the height of the suction grille 320 may be varied, and the suction grille 320 may be shaken.

The first roller 551 is rotated in place in the box 555 and the second roller 552, the third roller 553 and the fourth roller 554 are rotated along the respective roller axes Can be moved.

The first roller 551, the second roller 552, the third roller 553 and the fourth roller 554 are arranged in a zigzag fashion in the vertical direction.

The second roller 552 is disposed on the upper side of the first roller 551 and the third roller 553 is disposed on the lower side of the first roller 551 on the basis of the first roller 551. [ The fourth roller 554 is disposed above the first roller 551 and the second roller 552 and below the third roller 553.

Particularly, the second roller shaft 552a is positioned at the highest position, the third roller shaft 553a is positioned at the lowest position, the first roller shaft 551a is positioned higher than the third roller shaft 553a, The roller shaft 554a is positioned higher than the first roller shaft 551. [

The four roller shafts 554a are positioned above the center axis C and the wires connecting the drum body 535 are arranged inclined upward. Tension can be formed on the wire through the relative arrangement of the four roller shafts 554a and the center axis C. [

The first roller 551, the second roller 552, the third roller 553 and the fourth roller 554 are overlapped in the vertical direction to reduce the width of the right and left sides of the roller box 550.

That is, the gap between the first roller 551 and the third roller 553 is formed to be smaller than the diameter of the second roller 552. In addition, the gap between the second roller 552 and the fourth roller 554 is smaller than the diameter of the third roller 553.

In this embodiment, the 1-1 wire 511 surrounds the lower outer circumferential surface of the first roller 551 and covers the upper outer circumferential surface of the fourth roller 554.

The second roller box 560 includes a box 565 fixed to the unit case 590 and a second roller box 560 disposed inside the box 565 and in contact with the 1-2 wire 512, A first roller 561 and a fourth roller 564 which are rotated by friction upon movement of the second wire 512 and a fourth roller 564 which are disposed inside the box 565, A second roller 562 and a third roller 563 which are rotated by friction when the 1-2 wire 512 is moved and are relatively movable in the axial direction by the tension of the 1-2 wire 512, .

The first roller 561, the second roller 562, the third roller 563 and the fourth roller 564 are assembled to the respective roller shafts 561a, 562a, 563a, 564a, And can be rotated about the roller shafts 561a, 562a, 563a, and 564a.

The second roller box 560 includes a wire guard 561b (see FIG. 5) spaced apart from the first roller 561, the second roller 562, the third roller 563 and the fourth roller 564 562b, 563b, and 564b are disposed.

The first roller box 550 and the second roller box 560 are disposed symmetrically with respect to the drum 530. Particularly, the first roller box 550 and the second roller box 560 are arranged symmetrically with respect to the axis center C, respectively.

The first roller 551 and the second roller 551 are disposed on the furthest side with respect to the shaft center C and the fourth rollers 554 and 564 are disposed on the closest side.

In this embodiment, one end of the 1-1 wire 511 and one end of the 1-2 wire 512 are positioned on the opposite sides with respect to the axis center of the drum 530. The 1-1 wire 511 and the 1-2 wire 512 are wound or unwound on the drum body 535 in the same direction by the rotation of the drum 530.

The unit case 590 is formed in a box shape, and a first hole 591 and a second hole 592 are formed on a side surface thereof.

The first hole 591 is disposed on one side of the unit case 590 and the second hole 592 is disposed on the other side of the unit case 590. For example, when the first hole 591 is formed on the left side of the unit case 590, the second hole 592 is formed on the right side of the unit case 590.

The 1-1 wire 511 and the 1-2 wire 512 penetrate the unit case 590 in the horizontal direction.

A wire guider 700 for supporting the wire is disposed on the front body 310 when the wire is wound or unwound by the elevator 500. Four wire guiders 700 are arranged and correspond to the

respective wires

511, 512, 521, and 522.

The wire guider corresponding to the first wire 511 is defined as the first wire guider 701 and the wire guider corresponding to the second wire 512 is defined as the second wire guider 702, The wire guider corresponding to the fourth wire 514 is defined as the third wire guider 703 and the wire guider corresponding to the fourth wire 514 is defined as the fourth wire guider 704. [

The first wire guider 701 and the second wire guider 702 are disposed opposite to each other. The third wire guider 703 and the fourth wire guider 704 are disposed facing each other.

The first wire guider 701, the second wire guider 702, the third wire guider 703, and the fourth wire guider 704 are all located at the same height.

The first wire guider 701 and the second wire guider 702 are symmetrical with respect to the direction of the motor shaft 541 of the first unit. The third wire guider 703 and the fourth wire guider 704 are symmetrical with respect to the direction of the motor shaft 541 of the second unit when viewed from the top view or the bottom view.

The arrangement directions of the first wire guider 701 and the second wire guider 702 and the arrangement directions of the third wire guider 703 and the fourth wire guider 704 are parallel.

In this embodiment, the first wire guider 701 is positioned on the first corner cover 316-1 side, the second wire guider 702 is positioned on the second corner cover 316-2 side, The wire guider 703 is positioned on the side of the third corner cover 316-3 and the fourth wire guider 704 is positioned on the side of the fourth corner cover 316-4.

In this embodiment, the wire guider 700 is disposed on the front body 310. The wire guider 700 protrudes from the front body 310 toward the elevator 500 side. Each wire guider 700 is disposed on the inner surface 310a of the front body 310. [ The wire guider 700 is positioned between the roller box 550 and the front body 310. The wire guider 700 protrudes in the horizontal direction from the front body 310 toward the roller box 550.

The wire guider 700 is positioned above the suction grill 320 and below the bell mouth 142. [

The wire guider 700 includes a fixed block 710 disposed on an inner surface 310a of the front body 310 and protruding toward the roller box 550 and an assembling block 710 assembled with the fixed block 710. [ And a guider 750 disposed in the assembly block 720 and rotatable in the assembly block 720 and supporting the wire.

In this embodiment, the wire guider 700 includes the fixed block 710 and the assembly block 720. However, the wire guider 700 may be formed as a single integrated block unlike the present embodiment. The one block may be integrally formed with the front body 310 or may be separately manufactured and then assembled to the front body 310. However, in the case where the blocks are integrally formed with the front body 310, it is difficult to manufacture the blocks by injection molding in the shape of an assembly block as in the present embodiment.

The guider 750 supports the wire and supports the wire. The guider 750 may be rotated with the wire when the wire is wound or unwound.

The guider 750 accommodates the wire and provides a structure for facilitating movement of the wire. The guider 750 may be formed in various shapes, but in the present embodiment, it is formed in a disc shape.

The guider 750 includes a guider body 752 having a center of rotation in the horizontal direction and a guider body 752 disposed on the outer surface of the guider body 752 and recessed toward the center of rotation, And a guider shaft 755 passing through the rotation center of the guider body 752 and rotatably assembled to the assembly block 720. [

In this embodiment, the guider body 752 is formed in the form of a disk, and is disposed standing up and down. The guider body 752 is rotated in the vertical direction, and the center of rotation is formed in the horizontal direction. The outer surface 752a of the guider body 752 is formed in a circular shape.

The guider groove 754 is recessed from the outer surface of the guider body 752 toward the center of rotation. The guider groove 754 is formed in a ring shape along the outer surface of the guider body 752.

The wire is inserted into the guider groove 754 and can form a frictional force with the guider body 752 by friction. The guider body 752 can be rotated by friction between the wire and the guider body 752.

A guider shaft hole 753 through which the guider shaft 755 passes is formed at the rotational center of the guider body 752. The forming direction of the guider hole 753 and the forming direction of the guider groove 754 are intersected.

In this embodiment, the guider shaft 755 and the guider body 752 are manufactured and assembled. Unlike the present embodiment, the guider shaft 755 and the guider body 752 can be integrally manufactured.

In this embodiment, the fixed block 710 is composed of two blocks. Unlike the present embodiment, the fixed block 710 can be manufactured in one. In this embodiment, the fixed block 710 is fabricated integrally with the front body 310. Unlike the present embodiment, the fixed block 710 may be manufactured separately and then assembled to the front body 310. [

The fixed block 710 includes a first fixed block 711 and a second fixed block 712.

The first fixed block 711 and the second fixed block 712 are arranged in the horizontal direction and are symmetrically left and right. The first fixed block 711 and the second fixed block 712 are spaced from each other to form an insertion gap 713 and the guider 750 is positioned at the insertion gap 713.

The load applied to the guider 750 is supported through the first fixed block 711 and the second fixed block 712. Since the first fixed block 711 and the second fixed block 712 have the same shape, the first fixed block 711 will be described as an example.

The first fixed block 711 includes a fixed block body 730, a coupling hole 735 penetrating the fixed block body 730 in the vertical direction, and the fixed block body 730, A first inserting portion 731 protruding toward the side of the fixing block body 730 and inserted into the erection block 720 and forming an engagement with the erection block 720 in the vertical direction, And a second inserting portion 732 protruding toward the elevator 500 and inserted into the assembling block 720 and forming an interlock with the assembling block 720 in the vertical direction.

The first insertion portion 731 and the second insertion portion 732 are integrally formed. The upper surfaces of the first insertion portion 731 and the second insertion portion 732 form a continuous plane. The lower sides of the first insertion portion 731 and the second insertion portion 732 also form a continuous plane. That is, the upper surface 711a and the lower surface 711b of the first fixed block 711 are formed in a plane, parallel to each other, and arranged in a horizontal direction.

The first insertion portion 731 is disposed close to the insertion gap 713 and the second insertion portion 732 is disposed close to the insertion gap 713. [

The first insertion portion 731 and the second insertion portion 732 protrude in the horizontal direction and form different protrusion lengths. The first insertion portion 731 is further projected toward the elevator 500 side than the second insertion portion 732. [ That is, the protrusion length of the first insertion portion 731 is formed to be longer than the protrusion length of the second insertion portion 732.

Since the volume of the first insertion portion 731 is larger than that of the second insertion portion 732 in the present embodiment, the coupling hole 735 is formed in the first insertion portion 731.

The surface protruding from the first insertion portion 731 toward the assembly block 720 is formed as a curved surface 731a. The curved surface 731a is formed in the arrangement direction of the first insertion portion 731 and the second insertion portion 732. [

The inner side surface 711c forming the insertion gap 713 in the first fixed block 711 and the outer side surface 711d remote from the insertion gap 713 are formed parallel to each other. The inner surface 711c and the outer surface 711d are orthogonal to the upper surface 711a.

The upper surfaces 711a and 712a of the first fixed block 711 and the second fixed block 712 are disposed on the same plane and the lower surfaces 711b and 712b are also disposed on the same plane.

The insertion gap 713 is formed between the inner side surfaces 711c and 712c of the first fixed block 711 and the second fixed block 712. [ The

inner surfaces

711c and 712c of the first fixed block 711 and the second fixed block 712 are arranged parallel to each other with respect to the vertical direction. The outer side surfaces 711d and 712d of the first fixed block 711 and the second fixed block 712 are arranged parallel to each other with respect to the vertical direction.

The fastening holes 735 of the first fixed block 711 and the second fixed block 712 are parallel to each other with respect to the vertical direction.

A space 739 is formed between the first fixed block 711 and the inner surface 310a of the front body 310. [ A space 739 is also formed between the second fixed block 712 and the inner surface 310a of the front body 310. The spaces 739 are formed in the vertical direction and pass through the first fixed block 711 and the second fixed block 712. The strength of the fixed block can be improved through the space. It is possible to suppress the deformation that may occur in the process of generating the fixed block through the space 739.

The first insertion porgram 736 connecting the first insertion portion 731 and the inner side surface 310a is formed by the space 739. [ The second insertion bore 737 connecting the second insertion portion 732 and the inner side surface 310a is formed by the space 739. [

The assembly block 720 is configured to surround the outer surface of the fixed block 710. The fixing block 710 is inserted into the assembly block 720. The fixed block 710 and the assembling block 720 are assembled in the horizontal direction, and the fixed block 710 and the assembling block 720 form mutual engagement in the vertical direction.

The assembly block 720 includes an assembly block body 740 in which the guider 750 is rotatably assembled and has a first block opening surface 721a and a second block opening surface 722a formed on one side thereof, A first insertion space 721 formed inside the block body 740 and recessed inside the first block opening surface 721a and into which the first fixed block 711 is inserted, A second insertion space 722 which is formed inside the second block opening surface 740 and is recessed inside the second block opening surface 721a and into which the second fixing block 712 is inserted, A guider installation space 742 formed outside the first insertion space 721 and the second insertion space 722 and into which the guider 750 is inserted, A guider shaft groove 744 which is formed on the outside and supports the rotation shaft of the guider 750 and an inner side and an outer side of the assembly block body 740 It formed therethrough, and includes a coupling hole 745 which is a fastening member is inserted.

In this embodiment, the first fixed block 711 is inserted into the first insertion space 721a, and the second fixed block 712 is inserted into the second insertion space 722a. The first insertion space 721a and the second insertion space 722a are opened toward the inner side surface 310a of the front body 310 and project toward the elevator 500. [

The first insertion space 721a and the second insertion space 722a may be formed with one insertion space, unlike the present embodiment. When one insertion space is formed, the first fixing block and the second fixing block are inserted into one insertion space, so that a clearance can be generated.

Since the wire guider 700 is a structure for supporting the wire, it is necessary to minimize the play and the swing. When the guider 750 is shaken when supporting the wire, not only the operating noise is generated but also a larger shake is generated in the suction grille 320 supported by the wire.

The first insertion space 721a and the second insertion space 722a are formed in the horizontal direction. The assembly block body 740 has only one side open and the other side closed.

A guider mounting space 742 and guide

shaft grooves

744 and 746 are formed on the outer surface of the assembly block body 740.

The guider installation space 742 is formed in the horizontal direction, and the front and rear width thereof is narrower than the vertical thickness. The guider installation space 742 is formed by the first guider installation wall 742a, the second guider installation wall 742b, and the third guider installation wall 742c.

The first guider mounting wall 742a and the third guider mounting wall 742c are opposed to each other and the second guider mounting wall 742b is arranged to face the first guider mounting wall 742a and the third guider mounting wall 742c. Lt; / RTI > The second guider mounting wall 742b intersects with the first guider mounting wall 742a and the third guider mounting wall 742c and is orthogonal in this embodiment.

The first guider mounting wall 742a and the third guider mounting wall 742c are formed parallel to each other and the guider 750 is inserted between the first guider mounting wall 742a and the third guider mounting wall 742c do. The gap between the first guider mounting wall 742a and the third guider mounting wall 742c is longer than the thickness of the guider 750. [

The gap between the first guider mounting wall 742a and the third guider mounting wall 742c is formed narrower than the insertion gap 713 between the first fixing block 711 and the second fixing block 712. [

The upper and lower lengths of the guider installation space 742 are formed to be smaller than the diameter of the guider 750 and the guider 750 protrudes upward and downward of the guider installation space 742.

The first guider mounting wall 742a and the third guider mounting wall 742c are formed flat in the vertical direction, but the second guider mounting wall 742b is not.

The upper side of the second guider mounting wall 742b may protrude toward the guider 750 side. In the present embodiment, the upper side of the second guider mounting wall 742b is formed with the detachment preventing protrusion 743 which gently protrudes toward the guider 750 side.

The distance between the second guider mounting wall 742b and the guider body 752 is smaller than the diameter of the wire so that the wire is separated from the second guider mounting wall 742b and the guider body 752 Can be prevented.

The detachment protrusion 743 is a structure for preventing the guider body 752 from being inadvertently detached from the assembly block 720. The separation preventing projection 743 is defined as the first separation preventing projection.

The first detachment prevention protrusion 743 protrudes from the second guider mounting wall 742b toward the guider 750 side. The first separation preventing protrusion 743 forms a predetermined curvature and is separated from the outer surface 752a of the guider 750 by a predetermined distance.

Since the first detachment protrusion 743 formed on the assembly block covers the outer surface of the guider 750 in the present embodiment, it is possible to prevent the wire from being separated from between the guider body 752 and the assembly block 720 .

The gap between the first separation preventing protrusion 743 and the outer side surface 752a of the guider 750 is formed to be smaller than the diameter of the wire so that the wire is separated from the guider 750 by detaching the wire groove 754 You can block things. The wire provided in the guider groove 754 is positioned between the second guider mounting wall 742b and the wire groove 754. [

At least a portion of the first detachment protrusion 743 may be centered at the center of rotation of the guider shaft 755 at the center of rotation. The first detachment prevention protrusion 743 is positioned above the rotational center of the guider shaft 755.

The outer surface 752a of the guider body 752 may interfere with the first detachment protrusion 743 when the guider shaft 755 is inserted into the

guide shaft grooves

744 and 746. [ When the guider shaft 755 is inserted into the

guide shaft grooves

744 and 746, the guider body 752 is assembled with the detachable protrusions 743 in a detent-fitting manner. After the guider shaft 755 is assembled, the outer surface 752a of the guider body 752 and the detachment protrusion 743 are spaced apart from each other by a predetermined distance.

When the operator does not intentionally separate the guider 750 through such a structure, the guider shaft 755 is caught by the detachment protrusion 743 and is not separated.

On the other hand, the

guide shaft grooves

744 and 746 are disposed on both sides of the guider installation space 742, respectively. The first guide shaft 744 is disposed on the side of the first guider mounting wall 742a and the second guide shaft 746 is disposed on the side of the third guider mounting wall 742c.

The direction in which the first guide shaft 744 and the second guide shaft 746 are formed is orthogonal to the forming direction of the guider mounting space 742. The first guide shaft groove 744 and the second guide shaft groove 746 are symmetrical with respect to the guider installation space 742.

The first guide shaft 744 and the second guide shaft 746 are recessed downward from the upper surface of the assembly block body 740.

Since the shape of the second guide shaft groove 746 is symmetrical with the first guide shaft groove 744, the first guide shaft groove 744 will be described as an example.

Guide shaft

744, 746 includes a first axial wall 744a, a second axial wall 744b, and a third axial wall 744c.

The first axial wall 744a and the third axial wall 744c are formed parallel to each other. A guider shaft 755 of the guider 750 is inserted between the first axial wall 744a and the third axial wall 744c. The gap between the first axial wall 744a and the third axial wall 744c is formed wider than the diameter of the guider shaft 755. [ The guider shaft 755 may be rotated between the first axial wall 744a and the third axial wall 744c.

Preventing protrusion 747 for preventing separation of the guide shaft 755 is disposed. A structure for preventing the guide shaft 755 from separating from the

guide shaft grooves

744 and 746 is defined as a second detachment protrusion.

In this embodiment, the second detachment prevention protrusions 747 are disposed at two places. The second separation preventing protrusion 747 includes a second-1 separation preventing protrusion 747a protruding from the first axial wall 744a toward the third axial wall 744c and a second separation preventing protrusion 747b extending from the third axial wall 744c to the first axial wall 744a And a second 2-2 separation preventing projection 747c projecting toward the rear side.

Unlike the present embodiment, only one of the second-first separation preventing projection 747a and the second-second separation preventing projection 747c may be disposed.

The gap between the second-first detachment protrusion 747a and the second-second detachment protrusion 747c is formed to be smaller than the diameter of the guider shaft 755. The second-first detachment protrusion 747a and the second-second detachment protrusion 747c are positioned above the rotational center of the guider shaft 755.

The second-first detachment protrusion 747a and the second-second detachment protrusion 747c surround the outer portion of the guider shaft 755. The arrangement direction of the second-first separation preventing projection 747a and the second-second separation preventing projection 747c intersects with the longitudinal direction of the guider shaft 755. [

The first detachment protrusion 743 and the second detachment protrusion 747 prevent the guider from being separated from the assembly block 720 and also prevent the guider 750 from moving up and down.

The first detachment protrusion 743 and the second detachment protrusion 747 restrict the swinging and movement of the guider 750 and cause the detachment of the guider 750 during rotation of the guider 750 Thereby minimizing operating noise.

Since the first separation preventing protrusion 743 and the second separation preventing protrusion 747 restrict the shaking and movement of the guider 750, the shaking of the suction grille 320 during the operation of the elevator 500 is also minimized can do.

In this embodiment, the wire surrounds the upper side of the guider 750 and is turned downward. Therefore, since the load of the suction grille 320 is loaded on the wire, the guider 750 is pushed downward. That is, since the guider 750 is pushed downward during the installation state or operation, when the operator does not intentionally operate the guider, the guider does not separate from the guider installation space 742 and the guider shaft 744 (746).

In this embodiment, the guider is divided into a fixed block and an assembled block for easy installation. The guiding structure may be formed in the fixed block and the guider may be provided, unlike the present embodiment. For example, the guider mounting space and the guider shaft groove can be formed in the fixed block.

However, when the guider mounting space and the guider shaft groove are formed in the fixed block, the structure of the injection mold is complicated and it is difficult to manufacture.

&Lt; Arrangement of wire fixing part >

The wire is turned downward around the guider 750, and is fixed to the suction grill 320.

One end of the wire is fixed to the drum body 535 of the elevator 500, and the other end is fixed to the upper side of the suction grille 320.

The suction grill 320 is formed with a wire fixing part 329 to which the other end of the wire is fixed. The wire fixing portion 329 is disposed in the grill body 322 of the suction grille 320. [ Particularly, the wire fixing portion 329 is disposed on the grill body portion 324 where the grill hole 321 is not formed in the grill body 322, and protrudes upward.

A wire fixing portion disposed below the first wire guider 701 is defined as a first wire fixing portion and a wire fixing portion disposed below the second wire guider 702 is defined as a second wire fixing portion, A wire fixing portion disposed below the wire guider 703 is defined as a third wire fixing portion and a wire fixing portion disposed below the fourth wire guider 701 is defined as a fourth wire fixing portion.

The wire extends vertically downward through the guider 750 and is fixed to the wire fixing portion 329. The guider 750 is positioned above the grill body portion 324.

The wire guider 700 according to the present embodiment is positioned above the suction grill 320 and is covered by the suction grill 320. [ In particular, since the wire guider 700 is positioned above the grill body portion 324, the wire guider 700 is not exposed to the user.

The wire guider 700 is positioned closer to the suction port 101 side than the vane module 200. [ The vane module 200 is detachable from the front body 310 and prevents interference with wires during the separation of the vane module 200.

That is, the vane module 200 is positioned outside the four

wires

511, 512, 521, and 522, and the worker can move the four

wires

511, 512, 521, and 522 The vane module 200 can be separated.

When repairing or replacing the elevator 500, the operator removes the four

wires

511, 512, 521, and 522 independently of the vane module 200 while the suction grille 320 is lowered can do.

The rotation sensing device 600 senses the amount of rotation of the drum 530. The rotation sensing device 600 should sense a rotation amount more precisely than the rotation number of the drum 530. [

In this embodiment, the 1-1 wire 511 and the 1-2 wire 512 of the first unit 510 and the 2-1 wire 521 and the 2-2 wire of the second unit 520, Since the wire 522 must be wound or unwound simultaneously, the amount of rotation of the drum 530 must be sensed precisely.

Since the first unit 510 and the rotation sensing device 600 of the second unit 520 have the same configuration, the rotation sensing device 600 disposed in the first unit 510 will be described as an example.

The rotation sensing device 600 includes a rotation sensing factor 601 disposed on the drum 530 and rotated together with the rotation of the drum 530 and a rotation sensing factor 601 disposed apart from the rotation sensing factor 601, A sensor 602 for sensing the amount of rotation of the rotation sensing factor 601 and a printed circuit board 603 on which the sensor 602 is disposed.

The rotation sensing factor 601 is disposed at a position where the rotation sensing factor 601 is rotated together when the drum 530 is rotated. The rotation sensing factor 601 may be disposed in at least one of the 1-1 barrier 534 and the 1-2 barrier 536.

In this embodiment, a plurality of the rotation sensing factors 601 are arranged and the plurality of rotation sensing factors 601 are arranged at equal intervals in the circumferential direction with respect to the axis center C of the drum 530.

In the present embodiment, the rotation sensing factor 601 is disposed in the 1-1 barrier 534.

In the present embodiment, the rotation sensing factor 601 has a sawtooth shape. The rotation sensing factor 601 is arranged radially outwardly with respect to the axis C of the drum 530.

The sensor 602 senses the rotation sensing factor 601. In the present embodiment, the sensor 602 may be an infrared sensor or a photo sensor. The sensor 602 senses a signal generated by the rotation sensing factor 601 when the drum 530 rotates. For example, the sensor 602 generates infrared rays and receives the generated infrared rays. do. When the drum 530 is rotated, the sensor 602 determines the rotation angle, the number of rotations, and the rotation speed of the drum 530 through the change of the infrared ray blocked by the rotation detection factor 601 .

The sensor mounting portion 604 is protruded from the printed circuit board 603 to effectively sense the rotation sensing factor 601.

The printed circuit board 603 is disposed parallel to the axis C of the printed circuit board. The printed circuit board 603 is installed in any one of the drum motor 540, the unit case 590, and the roller box.

In this embodiment, the printed circuit board 603 is installed in the drum motor 540 and is disposed in parallel with the motor shaft of the drum motor 540.

The sensor mounting portion 604 protrudes from the printed circuit board 603 toward the drum 530. In the present embodiment, the constant sensor mounting portion 604 is disposed orthogonally to the printed circuit board 603.

The sensor mounting portion 604 is provided with the sensor 602. The sensor 602 includes a light emitting unit for generating an infrared signal and a light receiving unit for receiving the infrared signal generated by the light emitting unit. Since the operation mechanism of the sensor 602 is a general technique to those skilled in the art, a detailed description will be omitted.

However, the structure of the sensor mounting portion 604 and the printed circuit board 603 for effectively recognizing the rotation sensing factor 601 is characteristic.

The sensor mounting portion 604 is formed in a " C "shape when viewed from the top view.

The sensor mounting portion 604 is formed with a slot 605 through which the rotation sensing factor 601 can pass. Upon rotation of the drum 530, the rotation sensing factor 601 passes through the slot 605 and the sensor 602 senses a rotation sensing factor 601 passing through the slot 605.

The slot 605 is perpendicular to the axial center of the drum 530. The slot 605 is located on the rotation plane of the rotation sensing factor 601.

In this embodiment, since the rotation sensing factor 601 is disposed in the first-first barrier 534, the slot 605 and the first-first barrier 534 are positioned at least partially on the same side do.

The slot 605 is disposed in parallel with the 1-2 barrier 536 and the partition 533.

The sensor installation part 604 may be a structure in which only the sensor 602 is installed. Alternatively, the sensor mounting portion 604 may include a printed circuit board capable of supplying power to the sensor 602. Therefore, the printed circuit board 603 and the sensor mounting portion 604 can be electrically connected.

A permanent magnet may be used as the rotation sensing factor, and the sensor may be a hall sensor for sensing a permanent magnet. When a permanent magnet is used as the rotation sensing factor, a plurality of permanent posts may be arranged in the circumferential direction along the edge of the 1-1 barrier 534.

The rotation sensing factor 601 may be disposed in the 1-2 barrier 536 or in the partition 533, unlike the present embodiment.

The second unit 520 is constructed in the same manner as the first unit 510, and thus a detailed description thereof will be omitted.

&Lt; Arrangement of vane module and suction grill >

When the suction grill 320 is lowered, the four vane modules 200 and the elevator 500 are exposed. The suction grille 320 maintains a state in which the suction grill 320 is in close contact with the front body 310 because the wires are kept pulled upward.

When the suction grille 320 is moved downward, the four vane modules 200 and the elevator 500, which were hidden by the suction grille 320, are exposed.

When the suction grille 320 is in close contact with the front body 310, only the vane 210 of the vane module 200 is exposed.

Each of the wire guiders is positioned above the grill corner portion 327 constituting the suction grill 320.

The suction grill 320 includes a grill body 322 communicating with the suction port 101 by a plurality of grill holes 321 and formed in a rectangular shape and a grill body 322 extending in a diagonal direction from the corners of the grill body 322 A first grill corner portion 327-1, a second grill corner portion 327-2, a third grill corner portion 327-3, and a fourth grill corner portion 327-4.

The vane module 200 is disposed outside each edge of the suction grill 320 and includes a first grill corner portion 327-1 and a first grill corner portion 327-2 disposed between the first grill corner portion 327-1 and the second grill corner portion 327-2. And a second vane disposed between the second grille corner portion 327-2 and the third grille corner portion 327-3 and disposed on an outer side of each edge of the suction grille 320, And a third vane module positioned between each of the third and fourth grill corner portions 327-3 and 327-4 and positioned outside the respective edges of the suction grill 320. The third vane module 327 includes a module 202, And a fourth vane module (204) disposed between the fourth grill corner portion (327-4) and the first grill corner portion (327-1) and disposed outside each edge of the suction grill (203) ).

The vane module 200 arranged at the 12 o'clock direction is defined as the first vane module 201 and the vane module 200 arranged at the 3 o'clock direction is defined as the second vane module 202, The arranged vane module 200 is defined as a third vane module 203 and the vane module 200 arranged at a 9 o'clock position is defined as a fourth vane module 204. [

The first vane module 201, the second vane module 202, the third vane module 203 and the fourth vane module 204 are spaced at 90 degrees from the center C of the front panel 300 .

The first vane module 201 and the third vane module 203 are disposed in parallel and the second vane module 202 and the fourth vane module 204 are disposed in parallel.

In the front body 310, four side covers 314 are disposed. The side cover 314 disposed outside the first vane module 201 is defined as the first side cover 314-1 and the side cover 314 disposed outside the second vane module 202 is defined as the first side cover 314-1, The cover 314 is defined as a second side cover 314-2 and the side cover 314 disposed outside the third vane module 203 is defined as a third side cover 314-3, And the side cover 314 disposed outside the fourth vane module 204 is defined as a fourth side cover 314-4.

Each side cover 314 is assembled to the edge of the front frame 312 and is positioned below the front frame 312 and exposed to the outside and disposed outside each vane module 202.

The corner cover 316 disposed between the first vane module 201 and the second vane module 202 is defined as a first corner cover 316-1. A corner cover 316 disposed between the second vane module 202 and the third vane module 203 is defined as a second corner cover 316-2. The corner cover 316 disposed between the third vane module 203 and the fourth vane module 204 is defined as a third corner cover 316-3. A corner cover 316 disposed between the fourth vane module 204 and the first vane module 201 is defined as a fourth corner cover 316-4.

The first corner cover 316-1 is assembled to the corner of the front frame 312 and is positioned below the front frame 312. The first side cover 314-1 and the second side cover (314-2), and is exposed to the outside.

The second corner cover 316-2 is assembled to the edge of the front frame 312 and is positioned below the front frame 312. The second side cover 314-2 and the third side cover (314-3), and is exposed to the outside.

The third corner cover 316-3 is assembled to the edge of the front frame 312 and is positioned below the front frame 312. The third side cover 314-1 and the fourth side cover (314-4), and is exposed to the outside.

The fourth corner cover 316-4 is assembled to an edge of the front frame 312 and is positioned below the front frame 312. The fourth side cover 314-1 and the first side cover (314-1), and is exposed to the outside.

The first corner cover 316-1 and the third corner cover 316-3 are arranged in a diagonal direction with respect to the center O of the front panel 300 and are disposed facing each other. The second corner cover 316-2 and the fourth corner cover 316-4 are arranged in a diagonal direction with respect to the center O of the front panel 300 and arranged to face each other.

And virtual diagonal lines passing through the center of the front panel 300 are defined as P1 and P2. P1 is an imaginary line connecting the first corner cover 316-1 and the third corner cover 316-3 and P2 is a virtual line connecting the second corner cover 316-2 and the fourth corner cover 316- 4).

The suction panel 320 is provided with a first grill corner portion 327-1, a second grill corner portion 327-2, a third grill corner portion 327-3, and a fourth grill corner portion 327-3, (327-4).

The first vane module 201 is disposed outside each edge of the suction grill 320 with respect to the grill corner portions and the first grill corner portion 327-1 and the second grill corner portion 327- 2.

The second vane module 202 is disposed outside each edge of the suction grille and is disposed between the second grille corner portion 327-2 and the third grille corner portion 327-3.

The third vane module 203 is disposed outside each edge of the suction grille and disposed between the third and fourth grille corner portions 327-3 and 327-4.

The fourth vane module 204 is disposed outside each edge of the suction grill and disposed between the fourth grill corner portion 327-4 and the first grill corner portion 327-1.

The first grill corner portion 327-1 extends toward the first corner cover 316-1 and forms a continuous surface with the outer surface of the first corner cover 316-1.

The grill corner borders 326 of the first grill corner portions 327-1 are opposed to the corner decoror borders 317 of the first corner covers 316-1 and the corner decoror borders 317a .

The grill corner borders 326 of the remaining grill corner portions 327 and the corner decoror borders 317 of the corner covers 316 are also opposed to each other to form a corner decoror border gap 317a.

The suction grill 320 is formed with four grill corner portions 327 arranged to face the respective corner covers 316. Each of the grill corner portions 327 is arranged to face the corner covers 316.

The grill corner portion 327 disposed opposite to the first corner cover 316-1 is defined as a first grill corner portion 327-1 and the grill corner portion 327 is disposed so as to face the second corner cover 316-2 The grill corner portion 327 is defined as a first grill corner portion 327-2 and the grill corner portion 327 disposed opposite to the third corner cover 316-3 is defined as a third grill corner portion And a grill corner portion 327 disposed opposite to the fourth corner cover 316-4 is defined as a fourth grill corner portion 327-4.

The grill side borders 325 forming the edges of the grill corner portions 327 are arranged to face the corner decoror edge borders 317 forming the inner edges of the corner covers 316, .

Likewise, the grill corner borders 326 forming the edges of the grill corner portions 327 are arranged to face the inner edge of the vane 210, and the shapes of the curved lines also correspond to each other.

In this embodiment, a permanent magnet 318 and a magnetic force fixing portion 328 are disposed to keep the suction grille 320 in close contact with the front body 310.

The permanent magnet 318 or the magnetic force fixing portion 328 may be disposed on the front body 310 and the magnetic force fixing portion 328 or the permanent magnet 328 may be disposed on the side surface of each of the grill corners 327 318 may be disposed.

The permanent magnet 318 and the magnetic force fixing portion 328 are located above each grill corner portion 327 and are hidden by the respective grill corner portions 327. The gap between the suction grill 320 and the front body 310 can be minimized because the permanent magnet 318 and the magnetic force fixing portion 328 are located outside the respective corners of the suction grille 320.

When the suction grille 320 and the front body 310 are separated from each other, a pressure inside the suction passage 103 is lowered.

In this embodiment, the permanent magnet 318 is disposed on the front body 310. Specifically, the permanent magnet is disposed on the corner frame 313.

The magnetic force fixing portion 328 is formed of a metal material which interacts with the permanent magnet 318 to form a pulling force. The magnetic force fixing portion 328 is disposed on the upper side of the suction grille 320. Specifically, the magnetic force fixing portion 328 is disposed on the side of the grill corner portion 327.

When the suction grill 320 is moved upward and comes close to the permanent magnet 318, the permanent magnet 318 attracts the magnetic force fixing portion 328 to fix the suction grill 320. The magnetic force of the permanent magnet 318 is formed to be smaller than the self weight of the suction grille 320. When the suction grille 320 is not pulled by the elevator 500, the combination of the permanent magnet 318 and the magnetic force fixing portion 328 is released.

When viewed in a top view or a bottom view, the permanent magnets 318 are disposed on the virtual diagonal lines P1 and P2. The permanent magnet 318 is positioned inside the corner cover 316.

One of the four permanent magnets 318 is positioned between the first module body 410 of the first vane module 201 and the second module body 420 of the fourth vane module 204, . The remaining three permanent magnets are also disposed between the first module body 410 and the second module body 420 of each vane module.

The permanent magnet 318 and the magnetic force fixing portion 328 are located above each grill corner portion 327 and are hidden by the respective grill corner portions 327.

Hereinafter, the operation of the suction grill when the suction grill is raised or lowered according to the embodiment of the present invention will be described in more detail.

First, the installation state of the suction grill 320 will be described in more detail.

The suction grille 320 may be lowered for cleaning the filter or for repairing the interior of the indoor unit. The suction grill 320 is supported by four

wires

511, 512, 521 and 522 and the load of the suction grill 320 is all connected to four

wires

511, 512, 521 and 522 .

The suction grille 320 maintains a state in which it is in close contact with the front body 9310 by the four

wires

511, 512, 521, and 522. That is, the suction grille 320 and the front body 310 are not provided with separate coupling structures for supporting.

So that it is not necessary for the user to lift the suction grille 320 and the front body 310 by standing on a structure such as a chair to separate the suction grille 320. [ That is, as soon as the four

wires

511, 512, 521, and 522 are released by the operation of the elevator 500, the suction panel 320 is lowered downward.

Further, since the suction grill 320 is supported only by the

respective wires

511, 512, 521, and 522, each of the

wires

511, 512, 521, and 522 always forms a tight tension. When the suction grill 320 is supported on another structure, some of the

wires

511, 512, 521 and 522 may form a loose state and the elevator 500 may be connected to the wires 511 and 512 ) 521 and 522 can not be precisely controlled.

Since the

wires

511, 512, 521, and 522 according to the present embodiment always support the load of the suction grille 320, the entire length unrolled from the outside of the elevator 500 is always kept in a tight state.

The first wire fixing portion 329-1, the second wire fixing portion 329-2, the third wire fixing portion 329-3 and the fourth wire fixing portion 329-4 are connected to the suction panel 320 And is positioned at each corner side.

The edges of the suction grille 320 can be brought into close contact with the front body 310 and the deflection of the suction grille 320 can be suppressed to a large extent by the four wire fixing portions being pulled upward by the respective wires and coming into close contact with the front body 310 Can be minimized.

Since each

wire guider

701, 702, 703 and 704 is arranged with respect to the four

wires

511, 512, 521 and 522, the

respective wires

511, 512, 521 and 522 Can be prevented.

The loads applied to the

respective wires

511, 512, 521, and 522 can be partially dispersed by the

respective wire guiders

701, 702, 703, and 704. Since the

wires

511, 512, 521 and 522 are moved only along the wire grooves 754 arranged in the vertical direction, the widths of the

wires

511, 512, 521 and 522 Movement of the suction grille 320 can be suppressed, and the swing of the suction grille 320 can be minimized.

Next, a descending process of the suction grille 320 will be described.

When the user inputs an operation signal through the wireless remote controller or the wired remote controller while the suction grille 320 is mounted on the cover panel 300, the controller determines the input operation signal and descends the suction grille 320 .

When the suction grille 320 is lowered, the user can adjust the descending length of the suction grille 320. In this embodiment, the suction grill 320 can be lowered to 1m, 2m, 3m, and 4.5m.

The controller controls the first unit 510 and the second unit 520 at the same time to determine the input operation signal and controls the drum motor 540 disposed in the first unit 510 and the second unit 520, Is determined.

The suction grill 320 tilts only when the rotational speed and the rotational speed of each drum motor 540 are made to coincide with each other when the drum motor 540 of the first unit 510 and the drum motor 540 of the second unit 520 are simultaneously operated. Can be prevented. For this purpose, it is preferable to synchronize the drum motors 540 of the first unit 510 and the second unit 520 with each other.

In this embodiment, when each drum motor 540 rotates the respective drums 530 in the first direction (for example, counterclockwise), the suction grill 320 is lowered. Conversely, when each drum motor 540 rotates each drum 530 in a second direction (e.g., clockwise) opposite to the first direction, the suction grill 320 is raised.

When each drum motor 540 rotates the respective drums 530, the rotation amount sensing device 600 disposed in the first unit 510 and the second unit 520 receives the rotation sensing factor 601 And senses at least one of the rotation amount of the drum 530 and the rotation speed of the drum 530.

The control unit monitors data sensed by the rotation amount sensing apparatus 600 and determines whether each of the drums 530 is rotated at the same speed.

When the stepped portions on both sides of the first unit 510 and the second unit 520 are deviated, the counting number of the rotation sensing factor 601 may be corrected in the stopped state for the step difference correction. In the present embodiment, the counting number correction of the rotation sensing factor 601 is performed up to three times, and the elevator 500 is driven.

The control unit monitors the descent or elevation of the suction grille 320 by the elevator 500 through the rotation amount sensing device 600.

When the rotation of any one of the drums 530 is stopped in the ascending or descending process, the respective drum motors 540 are immediately stopped to block the inclination or fall of the suction grille 320.

The four

wires

511, 512, 521 and 522 are simultaneously released from the respective drums 530 by the operation of the respective drum motors 540. Each

wire

511, 512, 521 and 522 passes through a fourth roller 554, a third roller 553, a second roller 552 and a first roller 551. The

wires

511, 512, 521, and 522 extending in the horizontal direction in each unit case 590 are diverted toward the ground from the guider 750 positioned in the horizontal direction of each unit case 590 .

Each of the

wires

511, 512, 521, and 522 can be moved vertically downward of the guider 750 while being supported on the upper side of each guider 750. Through this process, the other ends of the

wires

511, 512, 521, and 522 fixed to the wire fixing portion 329 of the suction grille 320 are simultaneously lowered.

Each wire fixing portion 329 is positioned below each guider 750 and each

wire

511, 512, 521, and 522 extends in the vertical direction.

That is, since the wire fixing portion 329 is disposed below the guider 750 that supports the wire, shaking is minimized in the process of moving the

wires

511, 512, 521, and 522 up and down. Further, since the

wires

511, 512, 521, and 522 are supported by the four guiders 750, the load can be evenly dispersed, and the load applied to the rollers of each roller box can be minimized .

In addition, since the guider 750 and the roller box 550 are fixed structures, no wobbling occurs in a state where the wire is supported by the guider 750 and the first roller 551.

Since the wire fixing portion 329 is disposed on the lower side of the guider 750 and the guide fixing portion 329 is provided on the upper side of the guide grille 750 and the guider 750, The wire length between the wire fixing portions 329 is minimized.

That is, since the guider 750 and the wire fixing portion 329 are arranged in the vertical direction, the length of the wire unwound in the process of descending the suction grille 320 is minimized. When the suction grill is lowered, when the wires are arranged diagonally, the wires longer than the vertical direction must be loosened.

Next, the elevating process of the elevator 500 will be described in more detail.

In response to the operation signal of the user, the control unit can raise the suction grill 320 to the home position while the suction grill 320 is lowered.

The control unit rotates each drum 530 of the first unit 510 and the second unit 520 clockwise to return the suction grille 320 to the initial position.

The control unit keeps the rotation amount and rotation speed of each drum 530 at the same level and raises the suction grille 320 horizontally.

When the suction grille 320 is lifted and lowered, the wire fixing portion 329 is moved upward in the vertical direction, and the ends of the wires are also moved from the lower side to the upper side.

The first 1-1 wire 511 and the 1-2 wire 512 of the first unit 510 and the 2-1

wire

521 and 521 of the second unit 520 are rotated by the rotation of the drum 530, The second-second wire 522 is wound on each of the drums 530 at the same time.

The first 1-1 wire 511 and the 1-2 wire 512 are connected to the first section 531 and the second section 531 of the drum 530 when the drum 530 of the first unit 510 rotates, 532) while being horizontally aligned.

The first wire 511 passes through the guider 750 in the vertical direction and is then turned in the horizontal direction and is guided by the first roller 551, the second roller 552, the third roller 553, 4 roller 554 and then wound on the outer circumferential surface of the drum body 535 of the first section 531. After the 1-1 wire 511 is wound in a line on the outer peripheral surface of the drum body 535, a layer is formed on the 1-1 wire 511 wound in a line and wound.

The first wire 561 passes through the guide wire 750 in the vertical direction and then is turned in the horizontal direction. The first wire 561, the second wire 562, the third wire 563, 4 roller 564 and then wound around the outer peripheral surface of the drum body 535 in the second section 532. [

The second-first wire 521 and the second-second wire 522 are wound at the same speed as that of the first unit 510 in the second unit 520 rotated simultaneously with the first unit 510 .

One end of the second-first wire 521 and one end of the second-second wire 522 are connected to a drum (not shown) at the time of rotating the drum 530 of the

second unit

520, 530, while being aligned with the first zone 531 and the second zone 532 of the second zone 530.

The suction grill 320 is connected to the first 1-1 wire 511, the 1-2 wire 512, the 2-1 wire 521, and the 2-2 wire 522, as in the present embodiment, 4 points.

The suction grill 320 synchronizes the amount of rotation and the rotation speed of each drum 530 disposed in the first unit 510 and the second unit 520 while the suction grill 320 is supported at four points, Can be raised or lowered simultaneously.

In the indoor unit according to the present embodiment, the drum motor 540 is disposed in each of the first unit 510 and the second unit 520, but the control unit uniformly transmits the four wires through the rotation amount sensing device 600 Can be controlled.

In addition, since the indoor unit according to the present embodiment provides a structure in which one drum 530 is driven to wind or unwind the first 1-1 wire 511 and the 1-2 wire 512 simultaneously, The inclination of the grill 320 can be prevented.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It is to be understood that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

[Description of Symbols]

100: Case 101: Suction port

102: discharge port 103:

104: Discharge channel 110: Case housing

120: front panel 130: indoor heat exchanger

140: indoor ventilation fan 200: vane module

300: front panel 310: front body

320: suction grill 321: grill hole

322: Grill body 323: Grill

324: grill body portion 329: wire fixing portion

330: prefilter 500: elevator

600: Rotation amount sensing device 700: Wire guider

701: first wire guider 702: second wire guider

703: Third wire guider 704: Fourth wire guider

710: Fixed block 720: Assembly block

730: fixed block body 740: assembly block body

750: guider

Claims

A case which is installed on the ceiling of the room and has a suction port and a discharge port toward the lower side;

A suction grille disposed apart from the case and covering a suction port of the case;

A suction grill coupled to the suction grill through the 1-1 wire and the 1-2 wire and wound or unwound simultaneously with the 1-1 wire and the 1-2 wire to raise one side of the suction grill A first unit for lowering or lowering the first unit;

A first wire guider disposed in the case and supporting the first wire connecting the suction grill and the first unit, the first wire guider positioned above the suction grill;

And a second wire guider disposed in the case and supporting the first wire connecting the suction grill and the first unit and positioned above the suction grill,

Wherein each of the first wire guider and the second wire guider comprises:

A block disposed on an inner edge of the case;

And a guider assembled in the block, rotatable with respect to the block, and supporting the wires,

The above-

A guider body having a rotational center in a horizontal direction;

A wire groove disposed on an outer surface of the guider body and recessed toward the rotation center, the wire groove being inserted and supported; And

And a guider shaft passing through the rotation center of the guider body and rotatably assembled to the block,

Wherein the gap between the guider body and the block is smaller than the diameter of the wire.
The method according to claim 1,

The block includes:

A fixing block disposed at an inner edge of the case on which the suction port is formed and protruding toward the first unit or the second unit; And an assembly block assembled to the fixed block,

And the guider shaft is rotatably assembled to the assembly block.
The method according to claim 1,

Wherein the guider shaft is detachable from the guider body and is installed to pass through a rotation center of the guider body.
The method of claim 2,

The assembly block includes:

An assembly block body assembled with the stationary block and fixed to the stationary block;

And a guider installation space disposed outside the assembly block body and into which the guider is rotatably inserted,

Wherein the guider installation space is formed in a vertical direction, and the guider shaft is intersected with the guider installation space.
The method of claim 4,

And the guider shaft is located within the height of the guider installation space.
The method of claim 4,

The guider installation space

A first guider mounting wall formed on the assembly block body and formed in a rotating direction of the guider, the first guider mounting wall being opposed to a side surface of the guider;

A third guider mounting wall formed on the assembly block body, the third guider mounting wall being formed in a rotating direction of the guider and opposed to the other side surface of the guider; And

And a second guider mounting wall formed on the assembly block body and formed in the guider axial direction and connecting the first guider mounting wall and the third guider mounting wall,

And the gap between the second guider mounting wall and the guider body is smaller than the diameter of the wire.
The method of claim 6,

And a detachment protrusion located above the guider shaft and protruding from the second guider mounting wall to an outer surface of the guider body,

And the gap between the detachment protrusion and the guider body is smaller than the diameter of the wire.
The method of claim 7,

Wherein the detachment preventing protrusion is configured to interlock with an outer surface of the guider body when the guider moves up and down.
The method of claim 7,

Wherein the detachment preventing protrusion is formed in an arc shape and is formed to surround the outer side surface of the guider body.
The method of claim 4,

And a guider shaft groove formed outside the assembly block body and into which the guider shaft is rotatably inserted,

The ceiling-mounted indoor unit of an air conditioner according to claim 1 or 2, wherein the guider shaft groove is recessed in a downward direction from an upper side of the assembly block body, and intersects with the guider installation space.
The method of claim 10,

The guider axial groove

A first axial wall formed in the assembly block body and formed in a longitudinal direction of the guider shaft;

A third axial wall formed in the assembly block body and formed in the longitudinal direction of the guider shaft, the third axial wall facing the first axial wall;

A second axial wall formed on the assembly block body, intersecting with the longitudinal direction of the guider shaft, and connecting the first axial wall and the third axial wall;

And a detachment protrusion disposed on at least one of the first axial wall and the third axial wall and projecting toward the third axial wall or the first axial wall side and forming an interlock with the upper side of the guider shaft, Type indoor unit.
The method according to claim 1,

Wherein the guider axis of the first wire guider and the guider axis of the second wire guider are arranged in a line.
The method according to claim 1,

A second grill disposed on the inside of the case, coupled with the suction grill through the second-1 wire and the second grill-2 wire, and wound and unwound simultaneously with the second-first wire and the second- A second unit for lowering or lowering the first unit;

A third wire guider disposed in the case and supporting the second-1 wire connecting the suction grill and the second unit, the third wire guider positioned above the suction grill;

And a fourth wire guider disposed in the case and supporting the second-second wire connecting the suction grill and the second unit, the fourth wire guider positioned above the suction grill.
14. The method of claim 13,

In the bottom view, the first 1-1 wire and the 1-2 wire are arranged in a line, the 2-1 wire and the 2-2 wire are arranged in a line,

Wherein the first 1-1 wire and the 1-2 wire are aligned in a line and the arrangement directions of the 2-1 wire and the 2-2 wire are parallel to each other when viewed from the bottom view.
14. The method of claim 13,

Wherein the first wire guider and the second wire guider are located within the height of the first unit and the third wire guider and the fourth wire guider are located within the height of the second unit.
14. The method of claim 13,

Wherein the suction grille includes: a first wire fixing part to which the 1-1 wire is fixed; A second wire fixing part to which the 1-2 wire is fixed; A third wire fixing portion to which the second-1 wire is fixed; And a fourth wire fixing portion to which the second-second wire is fixed,

Wherein the first wire fixing portion is located below the first wire guider and the second wire fixing portion is located below the second wire guider,

Wherein the third wire fixing portion is located below the third wire guider and the fourth wire fixing portion is located below the fourth wire guider.
14. The method of claim 13,

Wherein the first wire guider and the second wire guider are located in the longitudinal direction of the first unit and are disposed apart from the first unit, and the third wire guider and the fourth wire guider are disposed in the longitudinal direction of the second unit And the second indoor unit is disposed apart from the second unit.
14. The method of claim 13,

Wherein the first wire guider, the second wire guider, the third wire guider, and the fourth wire guider are disposed at the same height with respect to the bottom surface of the case.
14. The method of claim 13,

When viewed in the bottom view, the bottom surface of the case is formed in a rectangular shape, the bottom surface forms four corners,

Wherein the first wire guider is disposed at one of two corners disposed at one side and the second wire guider is disposed at the other one of the two corners disposed at one side,

Wherein the third wire guider is disposed at one of two corners disposed on the other side and the fourth wire guider is disposed on the other one of the two corners disposed on the other side.
14. The method of claim 13,

In this case,

A case housing hanging from the ceiling of the room and having a bottom opened;

And a front body covering the bottom surface of the case housing and having the suction port and the discharge port,

Wherein the first unit and the second unit are disposed inside the case housing,

Wherein the first wire guider, the second wire guider, the third wire guider, and the fourth wire guider are disposed on the front body,

Wherein the suction grille is disposed below the front body.