KR101319688B1 - Indoor unit for air conditioner - Google Patents

Abstract

The present invention relates to an indoor unit of an air conditioner having a foreign matter blocking member provided in the drain means to block foreign matter loaded in the drain pan from entering the drain means.

The indoor unit of the air conditioner according to the present invention includes a drain pan (150) having a collecting space (152) for collecting condensed water generated on an outer surface of the indoor heat exchanger (160) for heat-exchanging indoor air, and the drain pan (150). And a drain means 300 for draining the condensate collected in the drain to the outside of the drain pan 150, wherein the drain means 300 includes a foreign matter blocking member 380 for blocking the inflow of foreign matter contained in the condensate. ) Is provided. The drain pan 150 may include a fan body 150 ′ having a body and having a collecting space 152 thereon, and a waterproof member 150 ″ attached to an upper surface of the fan body 150 ′. According to the present invention configured as described above, there is an advantage that the damage of the foreign matter blocking member is prevented in advance, and the manufacturing cost of the drain pan is significantly reduced.

Air conditioner, indoor unit, drain pan, foreign material blocking member

Description

Indoor unit of air conditioner {Indoor unit for air conditioner}

Figure 1 is an exploded perspective view showing the configuration of the indoor unit of the air conditioner according to the prior art.

Figure 2 is a perspective view showing a top surface of the drain pan of the indoor unit of the air conditioner according to the prior art.

Figure 3 is a bottom perspective view showing a state in which the front panel is separated from the indoor unit of the air conditioner according to the present invention.

Figure 4 is an exploded perspective view showing the internal configuration of the indoor unit of the air conditioner according to the present invention.

5 is a perspective view showing a drain means and a drain pan, which are main components of an indoor unit of an air conditioner according to the present invention;

Figure 6 is an exploded perspective view showing a drain means that is a main configuration of the indoor unit of the air conditioner according to the present invention.

Figure 7 is an enlarged view of the unit showing the lower surface of the foreign material blocking member in the drain means which is a main configuration of the indoor unit of the air conditioner according to the present invention.

8 is a longitudinal sectional view schematically showing a state in which a drain means, which is a main component of an indoor unit of an air conditioner according to the present invention, drains condensed water;

Explanation of symbols on the main parts of the drawings

100. Indoor 110. Front panel

112. Inlet port 114. Outlet port

116. Louver 118. Motor cover

119. Motor repair cover 120. Suction grill

122. Airflow 130. Cabinet

140. Base 142. Air Guide

150.Drain pan 150'.Fan body

150 ". Waterproof member 152. Collection space

154. Through hole 156. Pump seat

158. Drain hole 160. Indoor heat exchanger

170. Indoor Fan 172. Fan Motor

180. Orifice 182. Orifice Ball

190. Plasma Filter 192. Filter Bracket

194. Dust Collector Filter 196. Control Box

198. Printed Circuit Board 200. Grill Lifting Means

220. Lifting Kit 240. Wire

300. Drain means 320. Drain pump

340. Pump Bracket 360. Drain Guide

362.Suction 364.Drain

366. Temporary storage 380. Foreign body blocking member

382. Fitting holes 384. Foreign body blocking protrusion

The present invention relates to an indoor unit of an air conditioner, and more particularly, to an indoor unit of an air conditioner, wherein a foreign matter blocking member is provided in the drain means to block foreign matter loaded in the drain pan from entering the drain means.

In general, an air conditioner is a cooling / heating system that sucks hot air in a room and heat-exchanges the refrigerant with low-temperature refrigerant, and then discharges the refrigerant into the room, thereby cooling the room or heating the room by the opposite action. - a condenser - an expansion valve - an evaporator to form a series of cycles.

In particular, the air conditioner is mainly an outdoor unit (sometimes called 'outside' or 'heat sink') installed outdoors, and an indoor unit (sometimes called 'indoor' or 'heat absorbing side') mainly installed inside a building. The outdoor unit is provided with a condenser (outdoor heat exchanger) and a compressor, and the indoor unit is provided with an evaporator (indoor heat exchanger).

And, as is well known, air conditioners can be broadly divided into separate type air conditioners in which the outdoor unit and the indoor unit are separately installed, and integrated air conditioners in which the outdoor unit and the indoor unit are installed integrally, and separate type air conditioning in consideration of installation space or noise. The group is preferred.

That is, the multi-type air conditioner is connected to a plurality of indoor units in one outdoor unit, and the indoor unit is installed in the room for air conditioning, respectively, it is possible to obtain the effect of installing a plurality of air conditioners.

Hereinafter, a configuration of a general multi-type air conditioner indoor unit (hereinafter, referred to as 'room') will be described with reference to the accompanying drawings.

1 is an exploded perspective view showing the configuration of the air conditioner indoor unit according to the prior art, and FIG. 2 is a perspective view showing the upper surface of the drain pan of the indoor unit of the air conditioner according to the prior art.

As shown in these figures, the indoor unit 1 of the air conditioner is mounted so that the upper part is inserted and fixed inside the ceiling and the lower surface is exposed below the ceiling.

The indoor unit 1 includes a front panel 10 forming a rim of a bottom surface and a suction grill 20 installed at a central portion of the front panel 10 to allow indoor air to flow into the indoor unit 1. [ A cabinet 30 which forms an upper surface of the indoor unit 1 and a plurality of components are installed therein and a cabinet 30 which encloses an upper surface of the cabinet 30 and which is installed inside the ceiling The overall appearance is formed by the base 40.

The front panel 10 is perforated in a rectangular shape to mount the suction grill 20, and a rectangular discharge port 12 is formed on the bottom surface of the front panel 10. The discharge port 12 is to allow the air heat-exchanged in the indoor unit 1 to be discharged back to the room, it is formed in the same shape in the front, rear, left and right of the front panel 10.

In addition, the discharge port 12 is formed with a louver 14 forcing the flow direction of the air discharged into the room through the discharge port 12. The louver 14 has a rectangular plate shape corresponding to the shape and size of the discharge port 12, and is connected to a motor (not shown) that generates rotational power, thereby rotating the louver 14.

At the center of the front panel 10, a suction grill 20 having a substantially rectangular plate shape is mounted. The suction grill 20 allows indoor air to be sucked into the indoor unit 1 as described above. Accordingly, a plurality of suction ports 22 are formed in the central portion of the suction grille 20 such that the suction grille 20 is cut in the lateral direction and the upper and lower portions thereof are penetrated.

An air filter 50 is provided above the suction grill 20. The air filter 50 is to filter the indoor air sucked into the interior through the inlet 22, is formed of a flexible material and blocks the loading of foreign matter inside the indoor unit (1).

And the drain pan 60 is seated on the upper side of the front panel 10 described above. The drain pan 60 collects condensed water generated when the indoor heat exchanger 70 exchanges air, which will be described below, and has a collecting space 62 open upward.

The drain pan 60 also serves to guide the air introduced into the indoor unit 1 through the suction port 22 to flow upward through the center. In other words, a through hole 64 is formed in the center of the drain pan 60, and through the through hole 64, indoor air can flow to the upper side of the drain pan 60.

An orifice 66 is inserted into the through hole 64. The orifice 66 is for guiding the air below the drain pan 60 to flow to the center portion of the indoor fan 80, which will be described below. Unfold outward and have a diameter larger than the top end.

A pump seating portion 68 is provided at the rear half of the upper surface of the drain pan 60 as shown in FIG. 2. The pump seating portion 68 generates a suction force so that a drain pump (not shown) for draining the condensed water collected in the drain pan 60 to the outside of the indoor unit 1 is seated in a downward direction.

More specifically, the pump seat 68 is recessed to be positioned at a lower position than the bottom of the drain pan 60, and the condensed water dropped to the top of the drain pan 60 is pumped to the pump seat 68. The first is collected.

Therefore, a drain pump (not shown) installed to approach the bottom of the pump seat 68 may suck the condensed water collected in the pump seat 68. In addition, the drain pump is connected to communicate with a drain hose (not shown) to drain the condensed water sucked out to the indoor unit (1).

On the other hand, in the periphery of the pump seating portion 68, a plurality of cylindrical foreign matter catching bosses 69 are formed to protrude. The foreign matter catching boss 69 is a configuration for filtering foreign matter contained in the condensate flowing into the pump seating portion 68, and is formed closely at equal intervals.

Therefore, even when foreign matter (for example, hair) is contained when the condensate accumulated in the upper surface of the drain pan 60 moves to the pump seat 68, the foreign matter is caught by the foreign matter catching boss 69 and the pump seat ( 68) the inflow is blocked to prevent flow into the drain pump (not shown).

The foreign matter catching boss 69 is integrally formed with the drain pan 60. That is, the foreign matter catching boss 69 is formed integrally with the drain pan 60 by simultaneously forming the drain pan 60 from the plastic resin material during injection molding.

Therefore, a heat insulating member (not shown) is provided on the bottom surface of the drain pan 60 to block heat exchange between cold condensed water collected in the collecting space 62 and air.

An indoor heat exchanger 70 is installed above the collecting space 62. The indoor heat exchanger (70) exchanges indoor air purified by the air filter (50), and has a cross section corresponding to the water collecting space (62).

Therefore, the condensed water generated on the outer surface of the indoor heat exchanger 70 during heat exchange of the indoor air flows downward to be collected in the water collecting space 62.

The outer side of the indoor heat exchanger 70 is provided with a cabinet 30 that is coupled to each other a plurality of plates of the indoor unit 1 to form a space therein. The cabinet 30 has an approximately octagonal longitudinal section, the upper end is coupled to the front panel 10 upper surface, and the lower end is coupled to the base support 42 to be described below.

That is, the upper end of the cabinet 30 is inserted into the insertion hole 32 protruding outward so that one side of the base support 42 is inserted and fixed to be combined with the base support 42, the lower end of the front panel 10 A plurality of fastening flanges 34 are formed to enable screwing with the top surface.

In addition, an indoor fan 80 is installed at the center of the cabinet 30. The indoor fan 80 is connected to a fan motor 82 that generates rotational power when the power is applied, and receives the rotational power from the fan motor 82 to rotate at a high speed.

Therefore, when the fan motor 82 is rotated to force the air flow inside the indoor unit 1, the indoor air is sucked through the inlet 22, and the indoor air sucked through the inlet 22 is After heat exchange by the heat exchanger 70 is guided by the cabinet 30 to be discharged to the discharge port (12).

The fan motor 82 is regulated in flow by the motor mount 84. That is, the motor mount 84 is accommodated so that the flow of the upper part of the fan motor 82 is regulated, and the motor mount 84 is fixedly mounted to the center of the bottom surface of the base 40 described above. Therefore, the fan motor 82 can rotate at a high speed in a state in which the flow is regulated inside the indoor unit 1.

Meanwhile, a base support 42 is provided between the base 40 and the cabinet 30. The base support 42 is configured to prevent deformation of the base 40 due to the load when the load of the fan motor 82 and the indoor fan 80 is supported by the base 40.

However, the prior art having the above configuration has the following problems.

That is, the foreign matter catching boss 69 of the indoor unit 1 of the air conditioner according to the prior art is integrally formed at the time of injection molding the drain pan 60, and the lower surface of the drain pan 60 is cold condensed water and hot air. The heat insulating member is provided so that dew does not occur due to heat exchange.

Therefore, since the manufacturing process of the drain pan 60 is complicated and the defective rate is increased when attaching the heat insulating member, the manufacturing cost of the drain pan 60 is increased.

In addition, the foreign matter catching boss 69 has a certain strength as it is integrally molded with the drain pan 60. Therefore, the foreign matter catching boss 69 has a problem that is vulnerable to breakage due to external impact.

In addition, when the foreign matter jam boss 69 is damaged, the repair is difficult, so the drain pan 60 must be replaced entirely, so there is a problem in that serviceability is deteriorated.

Accordingly, an object of the present invention for solving the above problems is to provide an indoor unit of an air conditioner having a foreign matter blocking member provided in the drain means to block foreign matters loaded on the drain pan from entering the drain means. .

Another object of the present invention is to provide an indoor unit of an air conditioner which foams the drain pan and applies a waterproof member to the foamed upper surface of the drain pan to reduce manufacturing cost.

And a drain pan having a collecting space for collecting condensate generated on an outer surface of an indoor heat exchanger for exchanging indoor air, and drain means for draining the condensed water collected in the drain pan to an outside of the drain pan. It is characterized in that the foreign matter blocking member for blocking the inflow of foreign matter contained in the condensate.

The drain pan is characterized by comprising a fan body having a body, the catchment space is provided on the upper surface, and a waterproof member attached to the upper surface of the fan body.

The fan body is characterized in that the foam molding.

The foreign material blocking member is formed of an elastic material.

One side of the foreign material blocking member, the one side of the drain means includes a fitting hole perforated so that the foreign material blocking member is not separated from the drain means, and a foreign material blocking protrusion protruding downward at equal intervals to block foreign material inflow. Characterized in that configured.

The distance between the plurality of foreign matter blocking protrusions is formed smaller than the diameter of the drain hole which is drilled on one side of the drain pan to guide the condensed water collected in the collecting space to the outside.

The indoor unit of the air conditioner according to the present invention configured as described above has an advantage of maximizing internal space efficiency and improving installability.

Hereinafter, with reference to the accompanying drawings, the configuration of the indoor unit of the air conditioner according to the present invention will be described in detail.

Figure 3 is a bottom perspective view showing a state in which the front panel is separated from the air conditioner indoor unit according to the present invention, Figure 4 is an exploded perspective view showing the internal configuration of the air conditioner indoor unit according to the present invention.

As shown in the figure, the indoor unit 100 of the air conditioner is fixed to the upper part is inserted into the ceiling, the lower surface is exposed to the lower ceiling.

In addition, the indoor unit 100 is provided with a front panel 110 forming an edge portion of the lower surface, and a suction grill 120 installed in the center of the front panel 110 to allow indoor air to flow into the indoor unit 100. And a cabinet 130 which forms an upper appearance of the indoor unit 100 and includes a plurality of components therein, and a plurality of cabinets that are mounted inside the indoor unit 100 while shielding the upper surface of the cabinet 130. The overall appearance is formed by the base (140 in FIG. 4) supporting the load of the part.

The front panel 110 has a rectangular plate shape in which a center portion is perforated in a rectangular shape, and a suction port 112 is provided at the center portion of the front panel 110. The suction grille 120 is positioned in the suction port 112 to selectively filter foreign substances in the air introduced into the indoor unit 100 through the suction port 112.

To this end, the suction grill 120 is formed to have a size corresponding to the suction port 112 in order to prevent the air containing the foreign matter into the indoor unit 100, and in the air on the upper surface of the suction grill 120 It is preferable that an air filter (not shown) for selectively filtering the contained foreign matter is installed.

The air filter is formed of a flexible material, and a fine hole (not shown) is perforated in the entire surface. Therefore, foreign matters in the air introduced into the indoor unit 100 through the suction port 112 remain without passing through the micro holes and are attached to the lower surface of the air filter 124 so that the foreign matters inside the indoor unit 100. Loading is prevented beforehand.

In addition, the suction grill 120 serves to guide the indoor air to be introduced into the indoor unit 100, and for this purpose, the air flow is long at equal intervals on the front surface of the suction grill 120. A ball 122 is formed.

The air flow hole 122 is formed by penetrating the suction grill 120 in the vertical direction, the space in the center of the indoor unit 100 is configured to communicate with the room.

Therefore, when the indoor unit 100 is operated, indoor air may be introduced into the indoor unit 100 through the air flow hole 122, and guided by the discharge port 114 to be introduced into the room again.

Then, the front / rear left / right of the front panel 110 is formed with a discharge port 114 of a long rectangular shape. The discharge port 114 is configured to guide the indoor air sucked into the indoor unit 100 through the suction port 112 to be discharged back to the room, and the inside of the indoor unit 100 is formed to communicate with the room. .

The louver 116 is mounted inside the discharge port 114 to force the flow direction of the air discharged into the room through the discharge port 114. The louver 116 has a square plate shape corresponding to the shape and size of the discharge port 114, and is rotatably installed based on both ends.

A louver motor (not shown) is coupled to one end of the louver 116. The louver motor generates rotational power when power is applied, and is coupled to the louver 116 to transmit rotational power to the louver 116.

The louver motor is provided in a number corresponding to the plurality of louvers 116. That is, one louver motor is coupled to one louver 116. Accordingly, by selectively operating the plurality of louver motors, the plurality of louvers 116 may be independently operated.

More specifically, only one of the four louver motors may be operated so that only one louver 116 axially coupled thereto may be repeatedly rotated by a predetermined angle, and all the louvers 116 may be rotated by operating all four louver motors. There will be.

As a result, when the upper surface of the louver 116 and the air discharged through the discharge port 114 come into contact with each other, the contact angle between the louver 116 and the discharged air is changed every time by the rotation of the louver motor. The discharged air is forced to be discharged in various directions.

The motor cover 118 is provided at the upper edge portion of the front panel 110. The motor cover 118 is shielded so that the louver motor is not exposed to the upper side as the louver motor is installed in the upper edge portion of the front panel 110, four are provided in the same shape.

A motor repair cover 119 is provided on a lower side of the front panel 110 away from the motor cover. The motor repair cover 119 is configured to selectively replace the louver motor by being selectively separated from the front panel 110 when the louver motor breaks down.

The drain pan 150 is provided above the front panel 110 (see FIG. 5). The drain pan 150 is configured to collect the condensed water generated on the outer surface of the indoor heat exchanger 160 when the refrigerant passing through the interior of the indoor heat exchanger 160 and the indoor air heat exchange will be described below. It is formed larger than the outer size of the indoor heat exchanger (160).

The drain pan 150 has a large body, a fan body 150 ′ having a catchment space 152 recessed downward in an upper surface thereof, and a waterproof member attached to an upper surface of the fan body 150 ′. And 150 ".

The fan body 150 ′ is formed to have thermal insulation so that the cold condensed water collected in the collecting space 152 does not exchange with air. For this purpose, the fan body 150 ′ is foamed with polystyrene.

Therefore, as the fan body 150 ′, which occupies most of the total volume of the drain pan 150, is foamed, the weight becomes lighter and the heat insulating effect can be maximized.

The waterproof member 150 ″ is provided on the upper surface of the fan body 150 '. The waterproof member 150 ″ includes condensed water collected in the collecting space 152 inside the fan body 150'. It serves to block so as not to penetrate into, as long as the material having a waterproof performance within the range capable of forming a shape corresponding to the upper surface of the drain pan.

For example, the waterproof member 150 "may be applicable to a sheet used for glass coating.

In addition, the water collecting space 152 is formed on an upper surface of the drain pan 150, and a lower end portion of the indoor heat exchanger 160 is accommodated and seated inside the water collecting space 152 so that an outer surface of the indoor heat exchanger 160 is formed. The condensate formed in the flows downward to be accommodated in the collecting space 152.

The drain pan 150 also serves to guide the air purified by the air filter 124 to flow upward through the drain pan 150.

That is, the through hole 154 is drilled in the center of the drain pan 150. Therefore, the indoor air can flow upward through the suction port 112 and the through hole 154.

The pump seat 156 is provided on the right side (see FIG. 5) of the water collecting space 152. The pump seat 156 generates suction and causes the drain means 300 to forcibly drain the condensed water collected in the water collecting space 152 to the outside of the drain pan 150, and is recessed downward. .

In more detail, the pump seat 156 is recessed to be positioned at a lower position than the bottom surface of the drain pan 150, and condensate that has fallen onto the top surface of the drain pan 150 is disposed in the pump seat 156. The first is collected.

Therefore, the drain means 300 installed on the bottom of the pump seat 156 so as to be close to the lower portion can suck the condensed water collected in the pump seat 156. The bottom surface of the pump seat 156 is provided with a drain hole 158 drilled downward.

The drain hole 158 serves to guide the condensed water flowing into the pump seat 156 to be naturally drained to the outside of the drain pan 150. A drain hose is disposed below the drain hole 158. (Not shown) is generally connected.

More specifically, the drain hole 158 is a configuration for natural drainage when the amount of condensate collected in the collecting space 152 is not large, and the drain water stage 300 briefly mentioned above is the collecting space 152. When the amount of condensate collected in the water is rapidly increased and only natural drainage through the drain hole 158 is insufficient for forced drainage of the condensate, the drain means 300, although not shown float switch for detecting the level of condensate It is generally installed to work with.

The configuration of the drain means 300 will be described in detail below.

As described above, the indoor heat exchanger 160 is installed on the upper surface of the drain pan 150, more specifically, on the collecting space 152. The indoor heat exchanger 160 is for heat-exchanging the indoor air purified by the air filter 124, the refrigerant to heat exchange with the indoor air flows.

In addition, the indoor heat exchanger 160 is bent in a substantially "wh" shape when viewed from above. More specifically, the indoor heat exchanger 160 has a shape in which the elongated tube is bent a plurality of times in order to increase the heat exchange area with air, and is generally rectangular in shape.

Therefore, the indoor air flowing upward through the through hole 154 is forced to flow in the front and rear / left and right directions to exchange heat with the indoor heat exchanger 160, the outer surface of the indoor heat exchanger 160 during the heat exchange process Condensate generated in the water is collected in the collecting space (152).

The above-described cabinet 130 is provided outside the indoor heat exchanger 160. The cabinet 130 has a plurality of plates coupled to each other to form an octagon when viewed from above, and forms the exterior of the indoor unit 100, front and rear, shielding the inside of the indoor unit 100.

Then, the lower end of the cabinet 130 is coupled in contact with the upper edge of the front panel 110, the upper end is coupled to the lower surface of the base 140 to be described below.

Therefore, when the base 140 and the front panel 110 are coupled to the upper and lower ends of the cabinet 130, a space is formed inside the indoor unit 100 so that a plurality of parts can be built.

An air guide 142 is provided between the cabinet 130 and the indoor heat exchanger 160. The air guide 142 has a hollow rectangular tube shape to prevent the air heat-exchanged with the refrigerant from leaking out of the cabinet 130 while flowing outward from the inside of the indoor heat exchanger 160.

Therefore, the cross-sectional size of the air guide 142 is preferably larger than the indoor heat exchanger 160 and smaller than the front panel 110.

An indoor fan 170 is installed at the center of the cabinet 130. The indoor fan 170 is configured to force the air flow in conjunction with the fan motor 172 that generates a rotational power when the power is applied, generates a suction force in the upper direction to the center portion and from the inner side to the outer circumferential direction Will generate wind power.

Accordingly, when the indoor fan 170 receives the rotational power from the fan motor 172 and rotates at a high speed, the suction force generated at the lower side is transmitted to the through-hole 154 and the inlet 112 to suck indoor air .

In addition, the indoor air sucked into the center portion of the indoor fan 170 is blown toward the outer circumferential surface to pass through the indoor heat exchanger 160, thereby performing heat exchange by the refrigerant.

An orifice 180 is provided on the lower side of the indoor fan 170, more specifically, in the through hole 154. The orifice 180 serves to guide the air flowing upward from the lower side of the drain pan 150 to the center portion of the indoor fan 170, and has a cylindrical shape that increases in diameter downward. The lower end is coupled to be on the same plane as the bottom of the drain pan 150.

An orifice hole 182 is formed in the orifice 180 so as to be vertically pierced to guide the air below the drain pan 150 through the drain pan 150

The inner diameter of the orifice hole 182 is slightly smaller than the outer diameter of the indoor fan 170 and the indoor fan 170 is positioned inside the orifice hole 182.

Accordingly, when the indoor fan 170 rotates to generate a suction force, the air below the drain pan 150 flows upward along the orifice hole 182 and flows into the indoor fan 170 As shown in FIG.

The plasma filter 190 is provided on the lower left side of the orifice 180. The plasma filter 190 generates plasma to charge and adsorb foreign substances contained in the air, and the front and rear ends are coupled to one side of the bottom surface of the orifice 180 by a fastening member.

To this end, a filter bracket 192 is provided above the plasma filter 190. The filter bracket 192 prevents the plasma filter 190 from being separated by generating a restraining force in a state in which the plasma filter 190 is accommodated therein, and the filter bracket 192 is disposed on the bottom surface of the orifice 180. Combined.

Therefore, the plasma filter 190 constrained by the filter bracket 192 is supported by the filter bracket 192 without falling down as the filter bracket 192 is coupled to the orifice 180. It is possible to maintain a certain position.

In addition, a dust collecting filter 194 is further provided between the filter bracket 192 and the plasma filter 190. The dust collecting filter 194 is used to filter out fine foreign matter that has not been removed once even though the secondary filter is filtered to the air filter (not shown) and the plasma filter 190, and selectively from the filter bracket 192. It is detachably mounted.

Therefore, the indoor air purified in three stages through the air filter, the plasma filter 190, and the dust collecting filter 194 does not generate foreign matter loading in the indoor unit 100, thereby making the room more comfortable. do.

The control box 196 is provided on the lower right side of the orifice 180. The control box 196 is a configuration for controlling the operation of the indoor unit 100, a space of a predetermined size is formed inside the printed circuit board 198 is generally embedded.

On the other hand, the left and right of the lower surface of the orifice 180 is provided with a grill lifting means (200 of FIG. 4). The grill lifting means 200 is for selectively lifting the suction grill 120, is installed between the orifice 180 and the front panel 110, by a separate kit bracket (not shown) It is fixed to the orifice 180.

The grill lifting means 200 has a plurality of lifting kits 220 for forcing the up / down flow of the suction grill 120 by generating a large rotational power, and the lower end is coupled to the suction grill 120 Lifting kit 220 is configured to include a wire 240 for transmitting the generated rotational power to the suction grill (120).

Therefore, when the lifting kit 220 pulls the wire 240, the suction grill 120 flows upward to shield the suction port 112, and the lifting kit 220 wires 240. When the length of the inlet 112 is maintained in an open state.

Hereinafter, the configuration of the drain means 300 will be described in detail with reference to FIGS. 5 to 7.

5 is a perspective view showing a drain means and a drain pan, which are main parts of an indoor unit of the air conditioner according to the present invention, and FIG. 6 is an exploded perspective view showing a drain means of a main part of the indoor unit of the air conditioner according to the present invention. FIG. 7 is an enlarged view of a unit showing the bottom surface of the foreign matter blocking member in the drain means, which is a main component of the indoor unit of the air conditioner according to the present invention.

As shown in these drawings, the drain means 300 is located above the pump seat 156 to drain the condensate collected in the pump seat 156 to the outside of the drain pan 150. The condensed water sucked by the drain pump 320 is coupled to the drain pump 320, the pump bracket 340 on which the drain pump 320 is installed, and the drain pump 320. It comprises a drain guide 360 to guide the flow direction of the foreign matter blocking member 380 is coupled to the lower side of the drain guide 360 to filter the foreign matter.

The drain pump 320 is to generate a rotational power when the power is applied to the suction power is generated in the lower end, as compared to the general pump, its configuration is substantially the same, so the detailed description thereof will be omitted.

In addition, a pump bracket 340 formed by bending a plurality of plates is provided at an upper side of the drain pump 320. The pump bracket 340 is fastened and fixed to one side of the cabinet 130 in a state in which the drain pump 320 is accommodated in the lower inner side, and serves to restrain the pump bracket 340 from flowing. Although not shown, a plurality of fastening parts for fastening members are fastened.

The drain guide 360 is provided below the drain pump 320. The drain guide 360 is provided with a suction force generated by the drain pump 320 to suck the condensate collected in the pump seat 156 and guide the pump to the right side (as shown in FIG. 6). The drain pump 320 is fixed to one side.

That is, a suction part 362 is formed at the lower end of the drain guide 360 and a drain part 364 is formed at the right side, and a temporary storage part is disposed between the suction part 362 and the drain part 364. 366).

In more detail, the temporary auxiliary pipe part 366 has a container shape with an upper portion opened, and an inner portion of the temporary auxiliary pipe part 366 communicates with an inner space of the upper surface of the temporary storage part 366 at the center of the lower surface of the temporary storage part 366. Suction part 362 is formed. The drain 364 is formed at the right side of the temporary storage part 366. The drainage section 364 should communicate with the inner space of the temporary storage section 366.

Accordingly, the condensed water sucked through the suction unit 362 flows upward, flows through the temporary storage unit 366, and then flows to the right through the drain unit 364, And can be drained to the outside.

It is apparent that the drain hose 364 is connected to the drain 364 so that the condensed water in the water collecting space 152 may be drained to the outside of the indoor unit 100.

More specifically, the foreign matter blocking member 380 is provided on the outer side of the suction part 362 to the lower side of the drain guide 360. The foreign matter blocking member 380 is configured to block foreign matter contained in the condensate from being introduced into the drain guide 360.

That is, the foreign material blocking member 380 accommodates the suction part 362 therein and maintains the combined state with the drain guide 360, and the lower end of the foreign material blocking member 380 is the pump seat 156. It is installed to be in contact with the upper surface of the foreign matter to block the inflow.

More specifically, the foreign material blocking member 380 is drilled downward from the center of the upper surface, and the fitting hole 382 into which the suction part 362 is inserted, and the foreign material protruding downward from the outer circumference of the lower surface to block foreign substances from entering. A blocking protrusion 384 is provided, and the foreign material blocking member 380 is formed of an elastic material, for example, rubber or silicon.

The fitting hole 382 generates a restraining force so that the foreign material blocking member 380 is not separated from the drain guide 360, and has an inner diameter that is equal to or slightly smaller than the outer diameter of the suction part 362. Accordingly, when the suction part 362 is fitted into the fitting hole 382, the foreign matter blocking member 380 may remain coupled to the drain guide 360 unless it is forcibly pulled by the elastic force. do.

The foreign material blocking protrusion 384 is to keep the lower end in contact with the upper surface of the pump seat 156 to block foreign matter from entering the lower side of the foreign material blocking member 380, it is made of a plurality, Four foreign material blocking projections 384 are formed at equal intervals.

More specifically, the distance between the plurality of foreign matter blocking protrusions 384 is formed smaller than the diameter of the drain hole 158, whereby the foreign matter blocking protrusions 384 is the drain hole 158 by the foreign material Blocking blockages.

In addition, the foreign matter blocking protrusion 384 is formed in one piece when the foreign matter blocking member 380 is formed to have elasticity and thus is flexible. Therefore, the foreign matter blocking protrusions 384 may be bent in the direction of the center of the foreign matter blocking member 380 by the water flowing in between the foreign matter blocking protrusions 384. In order to prevent this, the foreign matter blocking protrusions 384 have a rectangular cross section.

In addition, the upper and lower lengths of the foreign material blocking protrusion 384 are formed longer than the depth of the fitting hole 382. That is, when the foreign material blocking protrusion 384 contacts the upper surface of the pump seat 156 as shown in FIG. 8, the lower end of the fitting hole 382 also contacts the upper surface of the pump seat 156. This is because suction of the condensed water collected inside the unit 156 is restricted.

The height difference between the foreign material blocking protrusion 384 and the fitting hole 382 is smaller than the depth of the pump seat 156.

For this reason, when the lower end of the foreign material blocking protrusion 384 is in contact with the upper surface of the pump seat 156, the lower end of the fitting hole 382 is the upper end of the pump seat 156 (drain pan 150) If the position is higher than the upper surface), the condensed water collected in the pump seat 156 is not sucked into the drain means 300, but the condensed water collected in the collecting space 152 is sucked.

That is, as described above, since the pump seat 156 has the lowest position in the catchment space 152, the condensed water dropped into the catch space 152 is first collected by the pump seat 156. This is because if the condensate flowing into the seating portion 156 is not sucked and drained, a problem may occur in that the absorption efficiency of the condensate is reduced.

Hereinafter, the operation of the indoor unit of the air conditioner having the above configuration will be described with reference to FIGS. 3 and 4.

First, in FIG. 3, when the front panel 110 is coupled to the bottom surface of the drain pan 150 and the coupling is completed, power is applied to the indoor unit 100. The rotational force generated from the fan motor 172 generates the flow of air by rotating the indoor fan 170.

That is, the suction force in the upper direction is generated to the lower central portion of the indoor fan 170, and the wind power is generated in the outer circumferential direction.

Therefore, the suction force generated in the lower side of the indoor fan 170 is transmitted to the suction grill 120 so that the indoor air is forced to flow into the indoor unit 100. The indoor air sucked into the indoor unit 100 is filtered by an air filter (not shown) after passing through the inlet 112.

Thereafter, the air filtered by the air filter is filtered again by the plasma filter 190 and the dust collecting filter 194, and the purified indoor air is guided by the orifice hole 182 and is inside the indoor fan 170. It flows into the center. The air introduced into the indoor fan 170 is forced to blow toward the outer circumferential surface, and is cooled by heat exchange with the indoor heat exchanger 160.

The indoor air cooled by this process is guided by the air guide 142 and the base 140 and is discharged into the room through the discharge port 114. Of course, the louver 116 is rotated by a predetermined angle to guide the discharge to the corner of the room by interfering the discharge air.

Hereinafter, the flow of condensate collected in the drain pan 150 will be described with reference to FIGS. 5 and 8.

8 is a longitudinal sectional view schematically showing a state in which a drain means, which is a main component of an indoor unit of an air conditioner according to the present invention, drains condensed water.

First, when the indoor heat exchanger 160 absorbs heat of indoor air by using a refrigerant, condensate is generated on an outer surface of the indoor heat exchanger 160, and the condensate flows down the indoor heat exchanger 160 so as to flow down. It flows into the collecting space 152.

The condensed water introduced into the water collecting space 152 flows to the pump seat 156 recessed to have the lowest position in the water collecting space 152, and the drain formed in the bottom surface of the pump seat 156 is drilled. Drained out of the drain pan 150 through the hole 158.

On the other hand, if the amount of condensate formed on the outer surface of the indoor heat exchanger 160 increases rapidly and the amount of condensate naturally drained through the drain hole 158 is greater than the amount collected in the catchment space 152, the catchment The level of condensate collected in the space 152 is increased to operate the float switch (not shown).

Although a description of the configuration of the float switch has been omitted, the operation of a general float switch will be described as an example. The float switch detects the level of condensate and selectively generates an electrical signal. The electrical signal is sent to the drain pump 320 to drain. Power is applied to the pump 320.

In the above process, the drain pump 320 is rotated, and this rotational force causes the suction force to be generated in the suction part 362.

The suction force generated in the suction part 362 sucks the condensed water collected in the pump seat 156 (see FIG. 8) and guides the temporary storage part 166 to the temporary storage part 366. The introduced condensate flows to the right side of the drainage part 364 so that the condensate flows quickly to the drain pan 150 outside the drain pan 150.

The scope of the present invention is not limited to the above-exemplified embodiments, and many other modifications may be made based on the present invention to those skilled in the art within the above technical scope.

In the indoor unit of the air conditioner according to the present invention having the configuration as described above, the foreign matter blocking member for blocking the foreign matter loaded on the drain pan from entering the drain means is configured in the drain means. The foreign material blocking member is formed of an elastic material.

Therefore, the damage of the foreign matter blocking member is prevented in advance, and the problem of the prior art that the drain pan must be replaced when the foreign matter blocking member is damaged can be naturally solved.

In the indoor unit of the air conditioner according to the present invention, the drain pan is foam-molded, and a waterproof member is provided on the foam fan-shaped upper surface.

Therefore, the load of the indoor unit itself is significantly reduced, there is an advantage that the installability is improved.

In addition, there is an advantage that the cost competitiveness is improved because the material cost is reduced to reduce the manufacturing cost.

Claims (7)

A drain pan having a collecting space for collecting condensed water generated on an outer surface of an indoor heat exchanger for exchanging indoor air and a pump seating portion recessed downward; A drain pump generating a suction force to drain the condensed water collected in the water collecting space; A foreign material blocking member provided below the drain pump and at least partly accommodated in the pump seating part; And A drain guide provided between the drain pump and the foreign matter blocking member and having a suction part for sucking condensate flowing in accordance with the operation of the drain pump and a drain part for draining the condensate, The foreign material blocking member, A fitting hole protruding downward from an upper surface of the foreign material blocking member and into which the suction part is inserted; And An indoor unit of the air conditioner is disposed to surround the fitting hole, and includes a foreign material blocking protrusion projecting downward from the upper surface of the foreign material blocking member to be fitted to the pump seating portion. The method of claim 1, wherein the drain pan, A fan body which forms a body and is provided with a water collecting space on an upper surface thereof; Indoor unit of the air conditioner, characterized in that it comprises a waterproof member attached to the upper surface of the fan body. The indoor unit of an air conditioner according to claim 2, wherein the fan body is foam molded. The foreign material blocking member according to any one of claims 1 to 3, wherein An indoor unit of an air conditioner, characterized in that formed of an elastic material. delete The method of claim 1, The foreign material blocking protrusion is provided a plurality of spaced apart, The distance between the plurality of foreign body blocking protrusions is The indoor unit of the air conditioner is punctured by the drain pan is formed smaller than the diameter of the drain hole for guiding the condensate collected in the water collecting space to the outside. The method of claim 1, The height difference between the lower end of the foreign material blocking projections and the lower end of the fitting hole, the indoor unit of the air conditioner is formed smaller than the depth of the pump seat.

Images