JP2011208847A - Duct type air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a duct type air conditioner capable of recovering condensation water without leakage even when the condensation water made to drop down from a heat exchanger is scattered to outside of a body due to effects by air blowing.SOLUTION: An end 17e on a blowout port 7 side of a dew pan 17 arranged in a heat exchanger chamber 11 is arranged within a space constituting a frame body of a blowout duct connection tool 8, and the tip 17e is extended upwardly within the space constituting the frame body by a first step part 17f and a second step part 17g protruded from the first step part 17f. Thus, this can recover the condensation water made to drop down from the heat exchanger 16 to the dew pan 17 without leakage.

Description

  The present invention relates to a duct type air conditioner, and more particularly to a configuration of a dew tray.

  2. Description of the Related Art A duct-type air conditioner in which a blowout duct is connected to a main body that is installed in a ceiling space of a building and accommodates a heat exchanger and a fan is known. The main body is partitioned into a blower chamber and a heat exchanger chamber by a partition plate. The blower chamber is provided with a plurality of blower fans and a fan motor that drives the blower fan. An exchanger and a dew tray for storing condensed water dripping from the heat exchanger are disposed.

  For example, as shown in FIG. 5, the conventional duct-type air conditioner 30 divides the inside of the main body provided with the inlet 31 and the outlet 32 into a blower chamber 35 and a heat exchanger chamber 34 by a partition plate 33. A blower fan 36 is disposed in the blower chamber 35, and a heat exchanger 37 and a dew tray 38 are disposed in the heat exchanger chamber 34.

  The air sucked from the suction port 31 is sent to the heat exchanger chamber 34 by the blower fan 36, passes through the heat exchanger 37, exchanges heat with the refrigerant, and from the blower outlet 32 to which a blowout duct (not shown) is connected. It is sent out indoors. Further, the condensed water condensed on the surface of the heat exchanger 37 is dropped on the dew receiving tray 38.

  In recent years, the size of a main body has been reduced so that a duct-type air conditioner can be installed even if the ceiling space of a building is narrow, while an increase in heat exchange capacity has been demanded, and the size of a heat exchanger has been increased. Also in the duct type air conditioner 30 described above, when the main body is downsized and the heat exchanger 37 is enlarged, the end of the heat exchanger 37 and the outlet 32 come close to each other, and condensed water dripped from the heat exchanger 37 is blown. As a result, the condensed water splashes outside the main body, and the scattered condensed water drops into the room via a blow-out duct (not shown).

  As another conventional example, for example, an air conditioner 40 shown in FIG. 6 divides the inside of a main body 41 by a fan top plate 42 (partition plate), and is provided with a blower chamber 43 and a heat exchanger chamber 44. A suction port (not shown) is formed on the lower surface of the blower chamber 43, and a blower fan 45 is provided. The heat exchanger chamber 44 is provided with a heat exchanger 46 and a dew receiving tray 47 that receives condensed water dripping from the heat exchanger 46, and the blowout air is deflected to the outlet 48 that faces the heat exchanger 44. An up / down wind direction plate 48 and a left / right wind direction plate 49 are provided (see Patent Document 1).

  An engagement portion 51 that engages with the fan top plate 42 is provided on the rear surface of the dew receiving tray 47, and a fixing portion 52 that is connected to the base of the left and right wind direction plates 49 is provided on the front surface. The dew tray 47 can be easily attached to and detached from the main body 41.

  As described above, the front side of the dew receiving tray 47 is provided with the fixing portion 52 connected to the base of the left and right wind direction plates 49, so that the rear end portion in contact with the fan top plate 42 to the front end portion located at the outlet 48 is provided. Although formed in the A size, the receiving portion 47 a that receives the condensed water dripping from the heat exchanger 46 is formed only from the fan top plate 42 to the range of the B size. Since the dew receiving tray 47 is made of a heat insulating material, dew condensation can be prevented, but the condensate receiving portion 47a is formed only up to a range of dimension B that does not reach the tip of the heat exchanger 46. As a result, the condensed water dropped from the heat exchanger 46 could not be recovered without leakage.

JP-A-8-94114 (4 pages, FIG. 2)

  In view of the above problems, the present invention provides a duct-type air conditioner that can collect scattered condensed water without leakage even if condensed water dripping from the heat exchanger is about to splash outside the main body due to the influence of air blowing. The purpose is to provide.

  In order to solve the above problems, the present invention provides a blower chamber in which a blower fan is housed in a main body having a suction port and a blower outlet by a partition plate, and a heat exchanger chamber in which a heat exchanger and a dew tray are housed. A duct-type air conditioner that is provided with a blow duct connection portion formed in a frame shape that connects a blow duct to the blow outlet, and a part on the blow outlet side of the dew tray is It has the structure arrange | positioned in the frame body space of the blowing duct connection part.

  In addition, a part of the dew tray is further configured to extend upward in the frame body space.

  According to the first aspect of the present invention, the condensed water dripping from the end of the heat exchanger is affected by the air flow and tends to scatter outside the main body, but the end of the dew tray is the frame of the outlet duct connecting portion. The condensate that drops from the heat exchanger and flows into the air can be collected in the dew tray.

  According to the invention of claim 2, the end of the dew tray is further extended upward in the space inside the frame, so that the condensed water can be more reliably collected, and the tip of the dew tray is There is no need to place it beyond the outlet duct connection.

1 is an external perspective view of a duct type air conditioner according to the present invention. It is an internal perspective view of the duct type air conditioner by this invention. It is sectional drawing of the duct type air conditioner by this invention. It is a principal part enlarged view of FIG. It is sectional drawing of the conventional duct type air conditioner. It is sectional drawing of the conventional duct type air conditioner.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail as examples based on the attached drawings.

  The duct type air conditioner according to the present invention comprises a main body 1 composed of a top plate 5, a right panel 3, a left panel 4, and a bottom plate 2 attached to the bottom surface, as shown in the external perspective view of FIG. The suction part 6 equipped with the filter 6a is provided on the rear surface of the main body 1, and the air outlet 7 to which the air outlet duct is connected is provided on the front surface.

  The air sucked from the suction portion 6 on the rear surface of the main body 1 is heat-exchanged with the refrigerant by a heat exchanger 16 to be described later, and is sent into the room by a blow-out duct (not shown) connected to the blow-out port 7. ing. Further, heat insulating materials are attached to the inner surface or outer surface of the right panel 3, the left panel 4, and the top plate 5 to prevent dew condensation on these surfaces. A refrigerant input / output pipe 9 connected to the vessel 16 is led out, and a drain pump discharge pipe 20 connected to a dew receiving tray 17 described later and a vertical discharge pipe 21 of the main body 1 are led out. Further, an electrical component box 19 containing a control board is mounted on one side of the main body 1 on the suction port 6 side.

  A hanging metal fitting 3a formed in an L shape is attached to the upper part of the right panel 3, and similarly, a hanging metal fitting 4a is attached to the upper part of the left panel 4, and these hanging metal fittings 3a and 4a are It is fixed to a suspension bolt suspended from a ceiling of a building (not shown), and the main body 1 is suspended and installed between the ceiling of the building and the indoor ceiling surface.

  As shown in the perspective view of FIG. 2 and the sectional view of FIG. 3, the inside of the main body 1 is partitioned forward and backward by a partition plate 10, and a blower chamber 12 is provided and partitioned on the side of one partitioned suction section 6. A heat exchanger chamber 11 is provided on the other inlet 7 side, and an outlet duct connection 8 is mounted on the outlet 7 of the main body 1. As shown in FIG. 3, the outlet duct connecting portion 8 includes an upper flange 8a and a lower flange 8b made of a steel material having an L-shaped cross section, and a right flange 8c and a left flange 8d, although not shown. And is configured by combining these into a frame shape. Further, the blowing duct connecting portion 8 is formed with a predetermined width A in the front-rear direction, and the frame body is formed so as to be smaller than the front surface provided with the air outlet 7 of the main body 1, and the upper flange 8a, the lower flange 8b, Although not shown, the right flange 8c and the left flange 8d are formed with a plurality of screw holes for connecting the blowing duct. By the screw hole, one end of a blowout duct (not shown) is connected to a blowout duct connection portion 8 formed in a frame shape, and the other end of the blowout duct is opened and installed on the ceiling surface of the room. The cool and warm air sent out from 7 is blown into the room through the blowout duct.

  The blower chamber 12 is provided with a plurality of blower fans 13 in the width direction of the main body 1 as shown in the exploded perspective view of the main part of FIG. The blower fan 13 is provided with a suction port 14a on both sides, a casing 14 having a blowout port 14c opened at the tip of the blowout part 14b, and a casing 14 rotatably accommodated in the casing 14, and rotating shafts on both sides of the suction port 14a. And the blowing portion 14 b of the casing 14 is fixed to the partition plate 10.

  The blower fan 13 is a sirocco fan, and the air sucked from the suction ports 14a on both sides of the casing 14 is exchanged from the blower outlet 14c of the blowout portion 14b by the rotation of the rotary blade 15 having the blades arranged on the circumference. It is sent to the chamber 11.

  Between the blower fans 13, fan motors 18 that rotate the rotary blades 15 of the respective blower fans 13 and project the rotary shafts on both sides are provided. The rotation shaft of the fan motor 18 is connected to the rotation shaft of the blower fan 13 located on both sides, while the rotation shaft of the blower fan 13 is connected via a connecting member (not shown). The blower fan 13 is driven by a fan motor 18.

  The heat exchanger chamber 11 is provided with a heat exchanger 16 that is inclined downward from the air outlet 7 toward the partition plate 10. The heat exchanger 16 includes a large number of parallel fins and heat transfer tubes arranged in a meandering manner so as to be orthogonal to the fins. The heat transfer tubes are connected via the refrigerant input / output tube 9 described above. The refrigerant pipe is connected to an outdoor unit (not shown). In addition, a dew tray 17 that receives condensed water condensed on the fin surface of the heat exchanger 16 is provided on the bottom surface of the heat exchanger chamber 11. The dew receiving tray 17 has a main bottom surface portion 17a having a bottom surface 17c that receives condensed water dripping from the heat exchanger 16 when the main body 1 is installed in a horizontal state, and the main body 1 is installed in a vertical state. At this time, it is formed in an L-shaped cross section including a sub-bottom surface portion 17b having a bottom surface 17d for receiving condensed water dripping from the heat exchanger 16. The drain pump 20 and the vertical discharge pipe 21 are connected to the dew receiving tray 17. When the main body 1 is installed horizontally, the condensed water stored in the main bottom surface portion 17 a is When the main body 1 is installed vertically, the condensed water stored in the sub-bottom surface portion 17b is discharged via the vertical discharge pipe 21 by a drain pump (not shown). To be discharged to the outside.

  As shown in the enlarged view of the main part of FIG. 4, the tip 17e on the outlet 7 side of the above-described dew receiving tray 17 is constituted by a frame made up of an upper flange 8a, a lower flange 8b, a right flange 8c, and a left flange 8d. Further, the outlet duct connecting portion 8 is formed so as to be positioned in the frame body space 8e indicated by the shaded portion, and the tip end portion 17e is the same as the first step portion 17f in the frame body space 8e. A second stepped portion 17g protruding from the one stepped portion 17f extends upward.

  Next, the effect of the front end portion 17e of the dew pan 17 disposed in the frame space 8e will be described. Condensed water dripping from the heat exchanger 16 to the dew receiving tray 17 is washed away to the outlet 7 side due to the influence of the air passing through the heat exchanger 16 indicated by the arrow, and further, the outlet 7 side end of the heat exchanger 16. Condensed water dripping from the air may flow to the outside of the main body 1 by being blown by air. The condensed water splashed outside causes a so-called dew-dropping phenomenon that drops into the room through a blow-out duct (not shown) from a blow-out opening opened in the room of the blow-out duct.

  However, since the tip end portion 17e of the dew receiving tray 17 is formed so as to be positioned in the frame body space 8e, the condensed water dripped from the end portion on the outlet 7 side of the heat exchanger 16 is flowed to the air. In addition, the condensed water to be dropped is collected in the dew receiving tray 17 by the tip 17e of the dew receiving tray 17 without being scattered outside the main body 1.

  Further, the tip 17e of the dew pan 17 extends upward in the frame internal space 8e by the first step 17f and the second step 17g protruding from the first step 17f. The condensed water that is about to scatter toward the outside of the main body 1 can be recovered more reliably. If the distal end portion 17e is not extended upward, the distal end portion 17 needs to be positioned further forward beyond the outlet duct connecting portion 8, and it will protrude outside the outlet duct connecting portion 8, There is a risk of the tip 17 being damaged when the main body 1 is transported. However, by extending upward, the condensed water can be more reliably collected, and problems such as breakage can be prevented.

  Further, by connecting one end of a blowout duct (not shown) to the blowout duct connecting portion 8 of the blowout outlet 7, even if the tip end 17e of the dew tray 17 is located in the frame space 8e, the tip 17e is It is not visually recognized by the user, and there is no possibility of damaging the beauty. As a result, the distal end portion 17e can be positioned in the frame internal space 8e.

  The effect of the tip 17e of the dew pan 17 described above reduces the size of the main body, but condensate leaks out of the main body and drops into the room even if the heat exchanger is increased in size so as to improve the heat exchange capacity. It is a duct-type air conditioner that can prevent problems such as the so-called dew phenomenon.

DESCRIPTION OF SYMBOLS 1 Main body 2 Bottom plate 3 Right side panel 3a Hanging metal fitting 4 Left side panel 4a Hanging metal fitting 5 Top plate 6 Suction part 6a Filter 7 Outlet 8 Outlet duct connection part 8a Upper flange 8b Lower flange 8c Right side flange 8d Left side flange 8e Frame body space 9 Refrigerant Input / output pipe 10 Partition plate 11 Heat exchanger chamber 12 Blower chamber 13 Blower fan 14 Casing 14a Suction port 14b Blowout portion 14c Blowout port 15 Rotary blade 16 Heat exchanger 17 Dew tray 17a Main bottom surface portion 17b Sub-bottom surface portion 17c Bottom surface 17d Bottom surface 17e End portion 17f First step portion 17g Second step portion 18 Fan motor 19 Electrical component box 20 Drain pump discharge tube 21 Vertical discharge tube

Claims (2)

The inside of the main body having the suction port and the air outlet is divided into a blower chamber containing a blower fan by a partition plate and a heat exchanger room containing a heat exchanger and a dew tray. In a duct type air conditioner provided with a blowout duct connecting portion formed in a frame shape for connecting a duct,
A duct type air conditioner, wherein a part of the dew tray on the outlet side is disposed in a frame space of the outlet duct connecting portion.   The duct-type air conditioner according to claim 1, wherein a part of the dew tray is further extended upward in the space in the frame.