KR101082890B1 - Indoor unit of air conditioner - Google Patents

Abstract

An air conditioner according to the present invention includes a rear case; A front case installed in front of the rear case, an air inlet is formed in the front surface, an air outlet is formed in at least one side of the upper and lower sides of the air inlet, and a temperature sensor vent is formed in the lower part of one side of the front left and right; A blower installed in the rear case; An indoor heat exchanger installed at a rear side of the air intake port so that the air sucked into the air intake port is heat exchanged; A control unit installed on an upper portion of the rear case; A temperature sensor for sensing a temperature of the air sucked toward the air inlet; A wire connecting a temperature sensor to the control unit; The temperature sensor may be installed at a lower position than the control unit by the link, including a link rotatably connected to a control unit, the wire being installed, and a temperature sensor installed at the temperature sensor vent, There is an advantage that can minimize the room temperature detection by the heat exchanger, and increase the responsiveness of temperature sensing.

Air Conditioners, Rear Cases, Front Cases, Indoor Heat Exchangers, Control Units, Temperature Sensors, Wires, Links

Description

Indoor unit of air conditioner

The present invention relates to an indoor unit of an air conditioner, and more particularly, to an indoor unit of an air conditioner having a temperature sensor for sensing an indoor temperature.

In general, the air conditioner uses a refrigeration cycle of refrigerant consisting of a compressor, an outdoor heat exchanger (condenser or evaporator), an expansion device, and an indoor heat exchanger (evaporator or condenser) in order to create a more comfortable indoor environment for the user. Or to purify the air, it is largely divided into a separate air conditioner and an integrated air conditioner.

The integrated air conditioner is equipped with a compressor, an outdoor heat exchanger, an expansion device, and an indoor heat exchanger in one case.

In the separate air conditioner, an indoor heat exchanger is disposed in the indoor unit, an outdoor heat exchanger and a compressor are disposed in the outdoor unit, an expansion mechanism is disposed in at least one of the indoor unit and the outdoor unit, and the indoor unit and the outdoor unit are connected to the refrigerant pipe.

The separate type air conditioner is classified into a general type air conditioner in which one indoor unit is connected to one outdoor unit and a multi type air conditioner in which a plurality of indoor units are connected to one outdoor unit according to the number of indoor units.

In addition, the air conditioner is composed of a cooler for cooling the room depending on whether the heating operation, or a combined air conditioning and air conditioner (ie, a heat pump) for cooling or heating the room.

Recently, the temperature sensor for detecting the indoor temperature is installed on the air intake passage to detect the indoor temperature and compare the detected indoor temperature with the desired temperature to turn on / off the compressor.

That is, during cooling, the compressor is turned on when the detected room temperature reaches the upper limit of the desired temperature, and the compressor is turned off when the detected room temperature reaches the lower limit of the desired temperature.

The indoor unit of a conventional air conditioner is installed by inserting a temperature sensor in front of an indoor heat exchanger or by inserting a control box to control an air conditioner.

However, the indoor unit of the air conditioner according to the prior art, when the temperature sensor is installed in close proximity to the indoor heat exchanger, the temperature of the indoor heat exchanger is transmitted to the temperature sensor, the accuracy of the indoor temperature detection is reduced, the room temperature detection and accordingly There is a problem in that the on / off reaction speed of the compressor is slow.

The present invention has been made to solve the above problems of the prior art, the object of the present invention is to provide an indoor unit of the air conditioner that the temperature sensor can accurately detect the room temperature without being affected by the indoor heat exchanger and the refrigerant pipe. There is this.

Another object of the present invention is to provide an indoor unit of an air conditioner installed at a position where the temperature sensor is not significantly affected by the latent heat during the latent heat removal condition of the multi-type air conditioner.

Still another object of the present invention is to provide an indoor unit of an air conditioner in which connection work of a refrigerant pipe is not disturbed.

The indoor unit of the air conditioner according to the present invention for solving the above problems; The front case is installed in front of the rear case, the air inlet is formed on the front surface, the air discharge port is formed on at least one side of the upper and lower sides of the air inlet, and the front case formed with a temperature sensor vent on the lower side of any one of the front left and right; ; A blower installed in the rear case; An indoor heat exchanger installed at a rear side of the air intake port so that the air sucked into the air intake port is heat exchanged; A control unit installed at an upper portion of the rear case; A temperature sensor for sensing a temperature of the air sucked toward the air inlet; A wire connecting the temperature sensor and the control unit; And a link rotatably connected to the control unit, the wire being installed, and the temperature sensor being located at the temperature sensor vent.

The link is formed with a wire guide through which the wire is inserted and guided.

It further comprises a wire hanger for preventing the removal of the wire guided to the wire guide.

A refrigerant pipe connected to the indoor heat exchanger; And a heat exchanger bracket for fixing the indoor heat exchanger to the rear case, wherein the heat exchanger bracket further comprises a first plate body positioned left and right in front of a portion of the refrigerant pipe, and rearward from the first plate body. And a second plate body portion that is bent and positioned next to some of the refrigerant pipes, and a third plate body portion that is bent laterally from the second plate body portion and fastened to the rear case.
The heat exchanger bracket further includes a fourth plate body bent sideways in the second plate body so that the link is caught rearward when the link is elongated in the vertical direction.
The heat exchanger bracket further includes a fifth plate body portion that bends orthogonally in the fourth plate body portion and fixes the link so that the link does not shake in the opposite direction of the second plate body portion when the link is elongated in the vertical direction. do.
The link is formed to protrude the engaging portion is seated on the heat exchanger bracket.

The link includes a link connecting portion rotatably connected to the control unit, and the control unit has a hinge connecting portion protruding from the link connecting portion.

And a refrigerant pipe connected to the indoor heat exchanger to be positioned between the indoor heat exchanger and the link, wherein the hinge connection portion has a horizontal axis connected to the link to rotate up and down when the refrigerant pipe is connected.

The link further includes an extension part extending from the link connection part and having the wire guide formed therein, and a plate body part protruding from the extension part to block a rear surface of the temperature sensor vent.

The extension part includes a vertical part elongated in the vertical direction and a horizontal part bent to protrude forward from the lower end of the vertical part.

The plate portion is formed perpendicular to the horizontal portion.

The horizontal portion is formed with a temperature sensor fitting hole in which the temperature sensor is inserted into the bottom surface.

The indoor unit of the air conditioner according to the present invention configured as described above can be installed at a position where the temperature sensor is lower than the control unit by the link, can minimize the room temperature misdetection by the indoor heat exchanger, the response of the temperature sensing There is an advantage to increase.

In addition, the link is rotated to a position that does not interfere with the connection of the refrigerant pipe, there is an advantage that the connection operation of the refrigerant pipe is easy.

In addition, since the electric wire is protected by the link, the wiring of the electric wire is easy, and there is an advantage of preventing damage to the electric wire.

In addition, since the rear surface of the temperature sensor vent formed in the front case is blocked by the link, there is an advantage that the indoor air is discharged into the room after heat exchange in the indoor heat exchanger without bypassing the indoor heat exchanger.

In addition, there is an advantage that the wire provided in the link is stably wired without being arbitrarily removed.

In addition, since the link is seated and supported by the heat exchanger bracket, there is an advantage that the temperature sensor can be fixed at a position corresponding to the temperature sensor vent.

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

1 is a perspective view of one embodiment of the indoor unit of the air conditioner according to the present invention, Figure 2 is a cross-sectional view of the operation of the indoor unit of one embodiment of the air conditioner according to the present invention, Figure 3 is an air conditioner according to the present invention An exploded perspective view of an indoor unit embodiment.

The indoor unit of the air conditioner according to the present embodiment is provided with an air inlet 4 for sucking indoor air in the main body 2 forming an appearance, and an air discharge port for discharging air conditioned inside the main body 2 ( 6) (8) is formed.

The main body 2 may be installed standing on the floor of the room, may be partially embedded in the wall, or may be installed on the wall, and the air inlet 4 and the air outlet 6 and 8 may be formed in the front part. In addition, the air inlet 4 and the air discharge port 6 and 8 are formed in addition to the lower surface for the case where the main body 2 is installed on the floor of the room.

The main body 2 has an air inlet 4 formed on its front surface, and air outlets 6 and 8 formed on at least one of the upper side and the lower side of the air inlet 4.

The main body 2 is an indoor unit of a cooling / heating air conditioner in which the cooling operation and the heating operation can be selectively performed. 6) is formed, the upper air discharge port 8 is formed in the upper portion to discharge the cold air to the upper portion of the main body 2 during the cooling operation, the height between the lower air discharge port 6 and the upper air discharge port (8) An air intake port 4 is formed in the.

The main body 2 may have an upper air discharge port 8 formed on an upper surface of the front surface of the main body 2, may be formed on an upper surface of the front portion of the main body 2, and may have an upper front surface and an upper surface of the main body 2. It is also possible to be formed in the inclined portion or round therebetween, hereinafter, the inclined portion is formed between the upper front surface and the upper surface of the main body 2 so that the cold air is discharged toward the upper portion of the room during the cooling operation, the upper air discharge port 8 is It demonstrates that it was formed in the inclined part.

The main body 2 is disposed in front of the rear case 10 and the rear case 10, and is formed with the air inlet 4, the lower air outlet 6, and the upper air outlet 8, and is located between the rear case 10. A front case 30 having a space therein and a front cover 50 disposed in the front case 30 so as to cover the air inlet 4 are included.

The main body 2 has a blower 60 which sucks indoor air through the air inlet 4 and passes the inside of the main body 2, and discharges it through the lower air outlet 6 and the upper air outlet 8, and a blower ( 60, the indoor heat exchanger 70 acting as an evaporator and a condenser while cooling or heating the air sucked into the air inlet 4, and a lower discharge unit guiding the air flowing to the lower air outlet 6 80, an upper discharge unit 90 for guiding the air flowing to the upper air discharge port 8, and a control unit 120 for controlling the air conditioner are provided.

The rear case 10 forms a rear appearance of the indoor unit of the air conditioner and forms an air flow path. The rear case 10 is formed in a box shape with an open front surface, and forms a flow path forming part 11 ( 12) (13) (14) are formed.

As shown in FIGS. 2 and 3, the flow path forming parts 11, 12, 13, and 14 have a left flow path forming part 11, a right flow path forming part 12, and a lower flow path forming part 13. ) And an upper flow path forming portion 14.

The flow path forming parts 11, 12, 13, and 14 surround a part of the outer circumference of the fan 63 to be described later on a surface of the left flow path forming part 11 facing the right flow path forming part 12 and have an extended angle. The left scroll part 15 protrudes, and the right scroll part 16 which surrounds a part of the outer periphery of the fan 63 mentioned later on the surface facing the left flow path forming part 11 of the right flow path forming part 12 and has an extended angle. ) Is formed to protrude.

The flow path forming parts 11, 12, 13, and 14 have the right scroll part 16 having the right flow path forming part when the left scroll part 15 is formed at the lower part of the upper and lower sides of the left flow path forming part 11. When the left scroll part 15 is formed on the upper part of the upper and lower parts of the upper and lower parts of the 12, and the left scroll part 15 is formed on the upper part of the upper and lower parts of the left flow path forming part 11, the right scroll part 16 is formed on the right flow path forming part 12. It is formed at the bottom of the upper and lower, the left scroll 15 and the right scroll 16 is formed symmetrically in the diagonal direction.

The flow path forming portions 11, 12, 13, 14 are disposed between one of the left flow path forming portions 11 and the right flow passage forming portion 12 between one side wall of the rear case 10. It has the electric room space C in which the control unit 120 is installed.

As shown in FIG. 2, the flow path forming portions 11, 12, 13, 14 are rounded so that the lower flow path forming portion 13 guides the air blown downwardly from the blower 60 in the forward direction. It is formed in a shape, the upper flow path forming portion 14 is formed in a round shape to guide the air blown downward from the blower 60 in the substantially forward upper direction.

As shown in FIG. 3, the rear case 10 includes a fastening hole 20 for mounting the blower 60 to the rear plate, and the fastening member 65 of the blower 60 includes the rear case 10. Is fastened to the fastening hole 20.

The front case 30 forms a front appearance of the indoor unit of the air conditioner, and is formed in a box shape having a rear surface and a bottom surface open, and installed at the front of the rear case 10 to cover the front surface of the rear case 10. do.

The front case 30 has an air inlet 4 formed on the front surface thereof, and the air outlets 6 and 8 are formed on at least one side of the upper and lower sides of the air inlet 4. Each of the discharge ports 6 and 8 is formed to have a shorter left and right width than the left and right widths of the main body 2.

The front case 30 has a stepped step portion 33 formed between the front lower portion 31 and the front upper portion 32, and an inclined portion 34 is formed on the upper portion 31.

The front case 30 has a lower air outlet 6 formed at the lower front 31, an air inlet 4 formed at the step 33, and an upper air outlet 8 formed at the inclined portion 34. Is formed.

The front case 30 has a stepped portion 33 recessed rearward between the front lower portion 31 and the front upper portion 32, and the front lower portion 31 and the front upper portion 32 are lower side of the upper portion 33. Protrudes forward from the upper side.

In the front case 30, the air inlet 4 is formed to be shorter than the left and right widths of the step 33, and the grille 4 ′ is formed in the air inlet 4.

The stepped part 33 is an air inlet 4 which is stepped between the front lower part 31 and the front upper part 32 and the grille 4 'is positioned, and the front lower part 31 is located on the left side of the air inlet 4. The left stepped part 35 between the front and upper part 32 and the right stepped part 36 located between the front lower part 31 and the front upper part 32 and positioned at the right side of the air inlet 4. Include.

The front case 30 forms air intake passages P1 and P2 between the front cover 50 and the air intake guides 37 and 38 for guiding air intake are provided with the front cover 50. It is formed to be spaced apart from.

In the front case 30, the upper plate portion 44a extends on the inclined portion 34, the left plate portion 44b forms the left appearance, and the right plate portion 44c forms the right appearance.

 The front case 30 covers the display assembly 130 at a position opposite to the display assembly 130 to be described later, and displays a window 45 displaying information of the indoor unit of the air conditioner by the light emitted from the display assembly 130. Is installed.

 The window 45 has an input unit for inputting various commands of the indoor unit of the air conditioner through the display assembly 130, and a display window on which information of the display assembly 130 is displayed.

The main body 2 has a temperature sensor vent 46 formed at a lower side of one side of the front left and right sides.

The front cover 50 is inserted into the stepped part 33 so as to be positioned at the same surface as the front lower part 31 and the front upper part 32 of the front case 30, and the left and right stepped parts of the front case 30 ( The left and right suction grille 39 and 40 are disposed between the 35 and 36.

 The front cover 50 is connected to the front case 30 by a multi-link 52 to limit its overopening.

As shown in FIGS. 2 and 3, the blower 60 is a centrifugal fan that sucks air in front of the fan and blows it in the circumferential direction. The fan motor 61 and the fan motor 61 are connected to the rear case 10. A motor mount 62 fixed to the fan, a fan 63 installed on the rotation shaft of the fan motor 61, and an orifice 64 for guiding air sucked into the fan 63 when the fan 63 rotates. .

The motor mounter 62 has a through hole through which the fastening member 65 passes, and the fastening member 65 is fastened through the through hole of the motor mounter 62 and the fastening hole 20 of the rear case 10.

The fan 63 is composed of a turbo fan positioned between the left, right, upper, and lower flow path forming parts 11, 12, 13, and 14.

  The indoor heat exchanger 70 is installed to be located behind the air intake 4, in particular, between the air intake 4 and the orifice 64 so that the air sucked into the air intake 4 is heat exchanged.

The lower discharge unit 80 has a lower passage through which air guided to the lower flow path forming portion 13 passes, and is disposed to rotate in the lower passage with a lower discharge body 81 positioned behind the lower air discharge port 6. A plurality of lower vertical vanes 82, an interlocking member 83 for linking the plurality of lower vertical vanes 82, a handle 84 for adjusting an arrangement angle of the lower vertical vanes 82, and a lower passage. And a lower horizontal vane 85 that functions as a damper to open and close, and a lower horizontal vane motor 86 that rotates the lower horizontal vane 85.

The lower discharge unit 80 is provided with a drain pan 87 that receives and drains the condensed water dropped from the indoor heat exchanger 70 above the lower discharge body 81.

The upper discharge unit 90 includes an upper discharge body 91 having an upper passage through which air guided to the upper flow path forming portion 14 passes, a plurality of upper vertical vanes 92 rotatably disposed in the upper passage, An interlocking member 93 for interlocking the plurality of upper vertical vanes 92, a handle 94 for adjusting an arrangement angle of the upper vertical vanes 92, a damper for opening and closing the upper passage, and discharged through the upper passage. The upper horizontal vane 95 for adjusting the up and down wind direction of the air to be, the upper horizontal vane motor 96 for rotating the upper horizontal vane 95, and the safety net 97 disposed in the upper passage of the upper discharge body 91. It includes.

The control unit 120 controls the indoor unit of the air conditioner according to the operation of the remote control or the operation / stop input through the window 45, and various commands of the indoor unit of the air conditioner are input and the indoor unit of the air conditioner is input. The display assembly 130 displaying information such as cooling / heating operation or clean operation is installed.

The control unit 120 is located in the electric compartment C formed in the rear case 10, and is installed on the rear case 10 by a fastening member such as a screw.

The control unit 120 controls the fan motor 61, the lower horizontal vane motor 86, the upper horizontal vane motor 96, and the display assembly 130 according to an operation of the remote controller or the switching of the windows.

The control unit 120 drives the lower horizontal vane motor 86 in a sealed mode so that the cold air is not discharged to the lower air discharge port 6 but to the upper air discharge port 8 during the cooling operation, and the upper horizontal vane motor 96 ) Is driven in the upward discharge mode, and drives the blower 60, in particular the fan motor 61.

The control unit 120 drives the lower horizontal vane motor 86 in the open mode so that the cold air is discharged to the lower air outlet 6 and the air discharged to the upper air outlet 8 is discharged toward the front lower side during the heating operation. In addition, the upper horizontal vane motor 96 is driven in the downward discharge mode, and the blower 60, in particular, the fan motor 61 is driven.

The display assembly 130 is installed to be located above the front of the control unit 120 to be installed in a position close to the window 45.

The temperature sensor 140 is for sensing the temperature of the air sucked toward the air inlet 4, and at least part of the temperature sensor 140 is located inside the temperature sensor vent 46, or the air sucked into the temperature sensor vent 46 is in contact. It is installed.

The temperature sensor 140 is connected to the control unit 120 and the wire 150 to sense a temperature and output a signal according to the temperature to the control unit 120.

When the position of the temperature sensor 140 is lower than the position of the control unit 120, the wires 150 are arranged to be vertically long.

The control unit 120 is connected to a link 160 in which the temperature sensor 140 is installed at the temperature sensor vent 46.

Link 160 is rotatably connected to the control unit 120, the wire 150 is installed.

Figure 4 is a view showing a high temperature region and a low temperature region during the latent heat removal of an indoor unit of the air conditioner according to the present invention.

The temperature sensor vent 46 allows some of the air sucked toward the air inlet 4 to be sucked in and out of contact with the temperature sensor 140 shown in FIG. 3. In the periphery of the intake port 4, in particular, one side of the left and right sides of the air intake port 4 is formed.

The temperature sensor vent 46 may be formed at a height of one side of the top, center, and bottom of the front case 30, and the position of the temperature sensor 140 is determined according to the position of the front case 30. It is desirable to be formed at a position that is not affected by the latent heat as much as possible.

On the other hand, when the indoor unit of the air conditioner according to the present embodiment is used as the indoor unit of the multi-type air conditioner, while the indoor unit of the air conditioner according to the present embodiment is in operation stop, the indoor unit of the air conditioner according to the present embodiment The refrigerant is compressed in the compressor (not shown) of the connected outdoor unit (not shown) and flows to the indoor heat exchanger 70 of the indoor unit of the air conditioner according to the present embodiment, and the control unit 120 stops operating under the latent heat removal condition. The fan motor 61 is driven for a predetermined time to remove the latent heat around the indoor heat exchanger 70 of the indoor indoor unit.

In the latent heat removal condition during the heating operation of the multi-type air conditioner as described above, the air conditioner according to the present embodiment has a high temperature in the upper region of the solid line shown in FIG. 4 and a lower region of the solid line AA shown in FIG. 4. As the temperature is lowered, the temperature sensor vent 46 is most preferably formed in the lower region of the solid line AA so that the temperature sensor 140 is not affected by latent heat as much as possible.

The temperature sensor vent 46 is formed of a grill portion protruding forward from the front of the front case 30, in particular, approximately one of the left and right stepped portions 35 and 36, and sucked to one side of the left and right sides. Air passes through the inside of one of the left and right grilles of the temperature sensor vent 46 and flows out through the other of the left and right grilles.

Hereinafter, the temperature sensor vent 46 and the temperature sensor 140 will be described in detail later.

FIG. 5 is a perspective view when the link shown in FIG. 3 is installed in the control unit, FIG. 6 is a cross-sectional view when the link shown in FIG. 3 is installed in the control unit, and FIG. 7 is shown in FIGS. 5 and 6. Fig. 8 is a perspective view when the broken link is lifted upwards during the refrigerant pipe installation operation, and Fig. 8 is a sectional view when the link shown in Figs. 5 and 6 is lifted upward during the refrigerant pipe installation operation, and Fig. 9 5 to 8 are enlarged perspective views of the links shown in FIG. 8.

The indoor unit of the air conditioner according to the present embodiment is located between the heat exchanger bracket 72 for fixing the indoor heat exchanger 70 to the rear case 10 and between the indoor heat exchanger 70 and the link 160. It further comprises a refrigerant pipe 74 connected to the indoor heat exchanger (70).

One end of the heat exchanger bracket 72 is fastened by an indoor heat exchanger 70 and a screw, and the other end of the heat exchanger bracket 72 is fastened by a screw or the like to the rear case 10.

The heat exchanger bracket 72 functions as a link holder for fixing the position of the link 160 in addition to the function of fixing the indoor heat exchanger 70 to the rear case 10.

The heat exchanger bracket 72 is fastened to the indoor heat exchanger 70 and positioned rearward left and right in front of a portion of the refrigerant pipe 74 and rearward from the first plate portion 75. The second plate body portion 76 which is bent and positioned next to a part of the refrigerant pipe 74, and the third plate body portion 77 which is bent sideways in the second plate body portion 76 and fastened to the rear case 10. It includes.

The heat exchanger bracket 72 includes a fourth plate body 78 that is bent sideways in the second plate body 76 so that the link 160 is caught rearward when the link 160 is arranged long in the vertical direction, and the fourth plate body 78 A fifth plate that is bent orthogonally in the plate portion 78 and fixes the link 160 so that the link 160 does not move in the opposite direction of the second plate portion 76 when the link 160 is elongated in the vertical direction. A body portion 79 is further included.

The refrigerant pipe 74 is connected to the indoor heat exchanger 70 next to the indoor heat exchanger 70 after installation of the indoor heat exchanger 70.

The link 160 is formed with a wire guide 162 through which the wire 150 is inserted and guided.

The electric wire guide 162 is an electric wire accommodating groove formed in the wiring direction of the electric wire 150 and is elongated in the longitudinal direction of the link 160.

 The link 160 is formed with a wire hook protrusion 164 that prevents the removal of the wire 150 guided by the wire guide 162.

The wire hook protrusion 164 protrudes from the wire guide 162, and a plurality of wire hook protrusions 164 are alternately formed on one side and the other side of the wire guide 162 in the longitudinal direction of the wire guide 162.

The link 160 has a locking portion 166 that is seated on the heat exchanger bracket 72 to protrude.

The engaging portion 166 is to prevent the link 160 from being caught in the heat exchanger bracket 72 and being over-rotated rearward when the link 160 is disposed long in the vertical direction. The temperature sensor 140 is positioned proximate to the temperature sensor vent 46 when seated and hooked at 72.

The locking portion 166 includes a front protrusion 166A protruding forward from the link 160 and a side protrusion 166B protruding forward of the heat exchanger bracket 72 from the front protrusion 166A. .

The link 160 is formed with a strength reinforcing rib 166C for reinforcing the strength of the front protrusion 166A.

  The link 160 is rotatably connected to the control unit 120, the link 150 is formed with a link connecting portion 168 rotatably connected to the control unit 120, the control unit 120 is a link The hinge connection portion 122 to which the connection portion 168 is hinged is formed to protrude.

 The link connecting portion 168 has a rotating hole 169 is formed in the center.

 The hinge connection part 122 has a horizontal axis 124 to which the link 160 is rotated up and down about the hinge connection part 122 when the refrigerant pipe 75 is connected.

The hinge connection portion 122 has a front protrusion 126 protruding forward in the front portion of the control unit 120, the horizontal axis 124 horizontally horizontally on one side of the left and right of the front protrusion 126. It protrudes.

The link 160 has the link connecting portion 168 positioned next to the front protrusion 126 so that the rotation hole 169 is rotatably fitted to the horizontal shaft 124, and the hinge connecting portion 122, in particular, the horizontal shaft 124. It is rotated up and down about the center.

 The hinge connection portion 122 has a link 160 of the front portion of the control unit 120 positioned next to the second plate portion 76 of the heat exchanger bracket 72, and the locking portion 166 has a heat exchanger bracket ( It is formed in the position which catches back to the 1st board-body part 75 of 72. FIG.

 The link 160 extends from the link connection portion 168 and the extension portion 170 having the wire guide 162 formed thereon, and the plate portion 172 protruding from the extension portion 170 so as to block the rear surface of the temperature sensor vent 46. More).

The extension part 170 includes a vertical part 174 extending in the vertical direction and a horizontal part 176 bent to protrude forward from the lower end of the vertical part 174.

The wire guide 162 is elongated along the vertical portion 174 and the horizontal portion 176.

 The plate portion 172 is formed to be orthogonal to the horizontal portion 176, and is the same size as the temperature sensor vent 46 or larger than the temperature sensor vent 46.

When the link 160 is fixed to the heat exchanger bracket 72, the plate body 172 blocks the back of the temperature sensor vent 46 at a position rearward of the temperature sensor vent 46.

The horizontal portion 176 has a temperature sensor fitting hole 178 into which the temperature sensor 140 is inserted into the bottom surface.

Hereinafter, the operation of the present invention configured as described above is as follows.

First, when assembling the air conditioner, the operator installs the control unit 120 in the upper part of the electric compartment C of the rear case 10, and the link 160 is rotatable in the control unit 120. It is arranged in the vertical direction in the connected state.

Subsequently, during the connection operation of the refrigerant pipe 74, when the worker lifts the link 160, the link 160 is rotated upward about the horizontal axis 124 of the hinge connection part 122, and the refrigerant pipe 74 is connected to the refrigerant pipe 74. Is rotated to a position that does not interfere with the connection.

In the state in which the link 160 is lifted upward as described above, the operator connects the refrigerant pipe 74 to the indoor heat exchanger 70. The worker then fastens the heat exchanger bracket 72 to the indoor heat exchanger 70 and the rear case 10 and lowers the link 160 downward.

The link 160 is rotated downward about the horizontal axis 124 of the hinge connection portion 122, and as shown in FIG. 5, it is disposed in the vertical direction at the side of the refrigerant pipe 74.

The link 160 is positioned next to the second plate portion 76 of the heat exchanger bracket 72 while the catching portion 166 is seated on the first plate portion 75 of the heat exchanger bracket 72. The second plate body 76, the fourth plate body 78, and the fifth plate body 79 are restricted from being over-rotated backward.

After the front case 30 is coupled to the front of the rear case 10, the temperature sensor 40 is located inside the temperature sensor vent 46 in the state in which it is mounted on the link 160, as shown in FIG. 6. In this case, the plate body portion 172 of the link 160 blocks the rear surface of the temperature sensor vent 46, and the temperature sensor 140 is installed at the lower position of the control unit 120 by the link 160. .

 In the air conditioner as described above, the refrigerant moved from the outdoor unit flows to the indoor heat exchanger 70 while heating or cooling the indoor heat exchanger 70, and the fan motor 61 of the blower 60 is driven to operate the fan. 63 is rotated.

Upon rotation of the fan 63, indoor air is drawn toward the air intake 4 around the air intake 4, some of which is in contact with the temperature sensor 140 while passing through the temperature sensor vent 46. The temperature sensor 140 detects the temperature of the air sucked into the temperature sensor vent 46 and outputs it to the control unit 120.

On the other hand, the air sucked toward the air inlet 4 is heated or cooled by the heat exchanger 70 after passing through the air inlet 4, and then is blown by the blower 60 to the upper air outlet 6 and It is discharged to at least one of the lower air discharge ports 8.

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

2 is a cross-sectional view during operation of an indoor unit of an embodiment of an air conditioner according to the present invention;

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

4 is a view showing a high temperature region and a low temperature region during latent heat removal of an indoor unit of an air conditioner according to the present invention;

5 is a perspective view when the link shown in FIG. 3 is installed in the control unit;

6 is a cross-sectional view when the link shown in FIG. 3 is installed in the control unit;

7 is a perspective view when the link shown in FIGS. 5 and 6 is lifted upwards during a refrigerant pipe installation operation;

8 is a cross-sectional view when the link shown in FIGS. 5 and 6 is lifted upwards during a refrigerant pipe installation operation;

9 is an enlarged perspective view of the link shown in FIGS. 5 to 8.

Claims (13)

A rear case; The front case is installed in front of the rear case, the air inlet is formed on the front surface, the air discharge port is formed on at least one side of the upper and lower sides of the air inlet, the front case formed in the bottom of any one of the front left, right Wow; A blower installed in the rear case; An indoor heat exchanger installed at a rear side of the air intake port so that the air sucked into the air intake port is heat exchanged; A control unit installed at an upper portion of the rear case; A temperature sensor for sensing a temperature of the air sucked toward the air inlet; A wire connecting the temperature sensor and the control unit; Rotatably connected to the control unit, the wire is installed, Indoor unit of the air conditioner including a link that is installed so that the temperature sensor is located in the temperature sensor vents. The method of claim 1, The indoor unit of the air conditioner is formed with a wire guide to the link is inserted into the wire. The method of claim 2, An indoor unit of an air conditioner, further comprising a wire hook protrusion that prevents the wire from being guided to the wire guide. The method of claim 1, A refrigerant pipe connected to the indoor heat exchanger; Further comprising a heat exchanger bracket for fixing the indoor heat exchanger to the rear case,  The heat exchanger bracket may include a first plate body positioned longitudinally in front of a portion of the refrigerant pipe, a second plate body bent backward from the first plate body and positioned next to a portion of the refrigerant pipe; An indoor unit of an air conditioner including a third plate portion bent laterally from the second plate portion and fastened to the rear case. The method of claim 4, wherein The heat exchanger bracket further includes a fourth plate body bent laterally from the second plate body so that the link is caught rearward when the link is arranged long in the vertical direction. The method of claim 5, The heat exchanger bracket further includes a fifth plate body portion that bends orthogonally in the fourth plate body portion and fixes the link so that the link does not shake in the opposite direction of the second plate body portion when the link is elongated in the vertical direction. Indoor unit of air conditioning. The method of claim 4, wherein The indoor unit of the air conditioner is formed in the link protruding engaging portion is seated on the heat exchanger bracket. The method of claim 2, The link includes a link connection rotatably connected to the control unit, The control unit indoor unit of the air conditioner, the hinge connection portion protruding from the hinge connecting the link connecting portion. The method of claim 8, A refrigerant pipe connected to the indoor heat exchanger to be located between the indoor heat exchanger and a link, The hinge connection unit is an indoor unit of an air conditioner having a horizontal axis that is connected so that the link is rotated up and down when connecting the refrigerant pipe. The method of claim 8, The link extends from the link connection portion and the extension is formed with the wire guide, An indoor unit of an air conditioner, further comprising a plate body protruding from the extension part to block the rear surface of the temperature sensor vent. 11. The method of claim 10, The extension unit includes a vertical unit formed long in the vertical direction, and the horizontal unit bent to protrude forward from the lower end of the vertical unit indoor unit of the air conditioner. The method of claim 11, The indoor unit of the air conditioner is formed in the plate portion orthogonal to the horizontal portion. The method of claim 11, The horizontal unit indoor unit of the air conditioner is formed with a temperature sensor fitting hole is inserted into the temperature sensor is inserted into the bottom.

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