JP2008128488A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air conditioner capable of preventing dew condensation water collected in a drain pan from waving and spattering to the outside of the drain pan in a cooling operation and the like. <P>SOLUTION: This air conditioner 1 comprises a fan 5, the drain pan 9, and a wave suppressing member 21. The fan 9 generates the airflow to an indoor heat exchanger 8. The dew condensation water generated on a surface of the indoor heat exchanger 8 is collected in the drain pan 9. The wave suppressing member 21 inhibits waving of the dew condensation water stored in the drain pan 9. And the wave suppressing member 21 is disposed near an edge 9a at an airflow downstream side of the drain pan 9. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an air conditioner, and more particularly, to an air conditioner that is designed so that water collected in a drain pan is not scattered.

In general, in an air conditioner, condensed water is generated in an indoor heat exchanger during cooling operation, and therefore, a drain pan that collects the condensed water is installed in the lower part of the indoor heat exchanger (for example, Patent Document 1). FIG. 6 is an enlarged cross-sectional view around the drain pan of the air conditioner described in Patent Document 1. In FIG. 6, the dew condensation water collect | recovered by the drain pan 19 is discharged | emitted by the drain pump (not shown) outdoors. Further, in order to prevent water accumulated in the drain pan 19 from splashing beyond the edge 19a of the drain pan 19 due to the wind pressure of the blown air, the water storage portion of the drain pan 19 is provided with a water absorbing material 15 so that the water storage surface is lowered. Considered.
Japanese Patent Laid-Open No. 11-118179

  However, in the air conditioner described in Patent Document 1, even if the water absorbing member 15 is installed in the drain pan 19, the water storage surface is above the water absorbing member 15, so that the ripple due to wind pressure is not eliminated, There remains a possibility that the condensed water will scatter over the edge 19a. For this reason, the height of the edge 19 could not be lowered, and pressure loss occurred during blowing.

  The subject of this invention is providing the air conditioning apparatus which suppressed that the dew condensation water collect | recovered by the drain pan rippled and scattered out of the drain pan at the time of a cooling operation etc.

  The air conditioning apparatus according to the first invention includes a fan, a drain pan, and a wave-dissipating member. The fan generates an air flow with respect to the indoor heat exchanger. The drain pan collects the dew condensation water generated on the surface of the indoor heat exchanger. The wave-dissipating member suppresses the ripples of condensed water stored in the drain pan. And the wave-dissipating member is arrange | positioned in the vicinity of the edge of the air flow downstream side of a drain pan.

  In this air conditioner, the wave of the drain pan surface generated by the wind pressure of the air flow is alleviated by the wave-dissipating member. For this reason, it is suppressed that a water splash jumps over the edge of a drain pan and is scattered.

  An air conditioner according to a second aspect of the present invention is the air conditioner according to the first aspect of the present invention, wherein the wave-dissipating member is continuously arranged from the vicinity of one end of the edge to the vicinity of the other end.

  In this air conditioner, there is no place where waves on the water surface are diffracted, and waves due to propagation are prevented. For this reason, it is suppressed that a water splash jumps over the edge of a drain pan and is scattered.

  An air conditioner according to a third aspect is the air conditioner according to the first aspect, wherein the wave-dissipating member has a width of 10 mm or more in the air flow direction.

  In this air conditioner, the width of the wave-dissipating member in the propagation direction of the wave generated by the air flow is sufficiently larger than the wavelength of the wave generated by the wind pressure of the air flow. But the waves are small. For this reason, it is suppressed that a water splash jumps over the edge of a drain pan and is scattered.

  An air conditioner according to a fourth aspect is the air conditioner according to the first aspect, wherein the wave-dissipating member is a net-like body. For this reason, the processing of the wave-dissipating member is easy, it can be formed into a shape that matches the edge of the drain pan, and is inexpensive.

  An air conditioner according to a fifth aspect is the air conditioner according to the first aspect, wherein the wave-dissipating member is a porous body. Since the porous body is lightweight, the weight of the apparatus is suppressed.

  An air conditioner according to a sixth aspect of the present invention is the air conditioner according to the first aspect of the present invention, wherein an antibacterial catalyst is kneaded in or applied to the wave-dissipating member.

  In this air conditioner, the germs adsorbed on the wave-dissipating member are killed by the catalyst. For this reason, the propagation of germs in the drain pan is suppressed, and the air blown out becomes clean.

  An air conditioner according to a seventh aspect of the present invention is the air conditioner according to the first aspect of the present invention, wherein the end of the indoor heat exchanger that is closer to the fan is positioned below and the end that is far from the fan is positioned upward. Inclined to be located. And the edge part near the fan is located in the drain pan.

  In this air conditioner, the end of the indoor heat exchanger is positioned inside the drain pan, so that the wind pressure from the fan acting on the water surface in the drain pan is relieved. For this reason, the ripples of the water surface in the drain pan are suppressed, and the splash of water splash is also suppressed.

  In the air conditioner according to the first aspect of the present invention, the wave surface of the water in the drain pan generated by the wind pressure of the air flow is alleviated by the wave-dissipating member, so that the water splash is prevented from jumping over the edge of the drain pan. .

  In the air conditioner according to the second aspect of the present invention, there is no place where the wave on the water surface is diffracted, and the ripple due to the propagation is prevented, so that the water splash is prevented from jumping over the edge of the drain pan.

  In the air conditioner according to the third aspect of the invention, since the width of the wave-dissipating member in the wave propagation direction is sufficiently larger than the wavelength of the wave generated by the wind pressure of the air flow, the wave is diffracted and propagated through the wave-dissipating member. Even the waves are small. For this reason, it is suppressed that a water splash jumps over the edge of a drain pan and is scattered.

  In the air conditioner according to the fourth aspect of the invention, since the wave-dissipating member is a net-like body, it is easy to process, can be formed into a shape that matches the edge of the drain pan, and is inexpensive.

  In the air conditioner according to the fifth aspect of the invention, the wave-dissipating member is a porous body, so it is lightweight.

  In the air conditioner according to the sixth aspect of the present invention, the germs adsorbed on the wave-dissipating member are killed by the catalyst, so that the propagation of germs in the drain pan is suppressed, and the blown air becomes clean.

  In the air conditioner according to the seventh aspect of the present invention, the end of the indoor heat exchanger is located inside the drain pan, so that the wind pressure from the fan acting on the water surface in the drain pan is alleviated. For this reason, the ripples of the water surface in the drain pan are suppressed, and the splash of water splash is also suppressed.

[First Embodiment]
<Configuration of air conditioner>
FIG. 1 is a cross-sectional view of an air conditioner according to a first embodiment of the present invention. The air conditioner 1 is suspended and supported on a ceiling surface via a casing 2 that is open at the bottom and sides. Moreover, the air conditioning apparatus 1 has the rectangular panel 3 on the lower surface. The panel 3 is connected to the casing 2 at its four corners, and an air inlet 3a is formed at the center. The air suction port 3a is provided with an air filter 3b for removing dust in the sucked air. Moreover, the air blower outlet 4 is each formed in each side surface. Each air outlet 4 is provided with a louver 4a for adjusting the air direction of the blown air.

  A turbo fan 5 is disposed in the center of the air conditioner 1. The turbo fan 5 is rotated by driving the motor 6 and blows out the air sucked from the lower side radially outward. A bell mouth 7 for guiding room air to the turbo fan 5 is arranged below the turbo fan 5.

  An indoor heat exchanger 8 is disposed on the outer periphery of the turbo fan 5. The indoor heat exchanger 8 includes a plurality of fins (not shown), and performs heat exchange between the air passing between the fins and the refrigerant circulating in the refrigerant pipe (not shown). It generates air adjusted to a predetermined temperature, and functions as an evaporator during cooling operation and as a condenser during heating operation. Thus, the temperature of the air sent from the turbo fan 5 is adjusted by the indoor heat exchanger 8.

  In addition, a drain pan 9 for collecting condensed water generated in the indoor heat exchanger 8 is disposed below the indoor heat exchanger 8. The drain pan 9 is provided with a drain pump (not shown). The drain pump pumps up the condensed water collected by the drain pan 9 and discharges it outside the room.

<Wave absorption member>
In the drain pan 9, the stored condensed water is drawn to the edge of the drain pan 9 by the wind pressure of the air sent from the turbofan 5, and the water surface is always exposed to high-speed blown air.

  FIG. 2 is an enlarged cross-sectional view around the drain pan of the air-conditioning apparatus according to the first embodiment of the present invention. As shown in FIG. 2, in this embodiment, the wave-dissipating member 21 that suppresses the undulation of the water surface is provided on the edge 9 a so that the water surface of the dew condensation water does not scatter and splashes beyond the edge 9 a on the downstream side of the air flow of the drain pan 9. Are arranged along. That is, the wave kinetic energy is absorbed by the wave-dissipating member 21, thereby suppressing the ripples on the water surface.

  FIG. 3 is a plan view of the drain pan of the air-conditioning apparatus according to the first embodiment of the present invention. As shown in FIG. 3, the wave-dissipating member 21 preferably has a length corresponding to the entire length of the edge 9a. This is because, when the wave-dissipating member 21 is intermittently disposed, the wave is diffracted and propagated from the gap between the wave-dissipating members 21 and may hit the edge 9a to generate water droplets. Therefore, in this embodiment, the wave-dissipating member 21 is disposed along the edge 9 a from one end 91 to the other end 92 of the edge 9 a of the drain pan 9. The wave-dissipating member 21 does not need to be in close contact with the edge 9a, and may be disposed continuously from the vicinity of one end of the edge 9a to the vicinity of the other end at a position close to the edge 9a.

  And since the edge 9a of the drain pan 9 can be made low compared with the conventional edge 19a (refer FIG. 6) by suppressing the ripple of the water surface, the pressure loss at the time of ventilation is reduced. For example, in an experiment using this embodiment, it is known that the wave height of the water surface is reduced by about 5 mm by disposing the wave-dissipating member 21, so that the height of the edge 9a may be reduced by about 5 mm. It becomes possible.

  Further, the upper end of the edge 9 a and the upper surface of the wave-dissipating member 21 have the same height, and are set at a distance of about 50 mm from the inner bottom surface of the drain pan 9. Of course, the upper end of the edge 9a and the upper surface of the wave-dissipating member 21 do not necessarily have the same height, and the upper surface of the wave-dissipating member 21 may be set lower than the upper end of the edge 9a.

  The wave-dissipating member 21 is preferably arranged continuously, but if the width dimension of the wave-dissipating member 21 (the dimension in the air flow direction or the dimension in the wave propagation direction) is sufficiently secured, the wave-dissipating member 21 is intermittent. May be arranged. When the wave-dissipating member 21 is intermittently disposed, waves may be diffracted and propagated from the gaps between the wave-dissipating members 21 and may hit the edge 9a to generate water splashes. This is because when the width dimension is sufficiently larger than the wave wavelength, the wave propagating through the gap can be suppressed to be small. In the experiment using this embodiment, it has been confirmed that the width dimension of the wave-dissipating member 21 is preferably 10 mm or more, and is actually set to about 30 mm.

  In order to suppress the air sent from the turbo fan 5 from bypassing the gap between the indoor heat exchanger 8 and the drain pan 9, a protrusion 19b (see FIG. 6) is conventionally provided. In the present embodiment, the wave-dissipating member 21 also has a function of suppressing the detour of the air flow, so that the conventional protrusion 19b is unnecessary and the structure of the drain pan 9 is simplified.

  The wave-dissipating member 21 is formed with a net 21a shown in FIG. 4A, formed with a pumice 21b shown in FIG. 4B, and formed with a sponge 21c shown in FIG. 4C. And those formed of the honeycomb structure 21d shown in FIG. 4 (d) are preferable. In addition, if it is a thing of the porous body which has innumerable pores other than what was shown in FIG. 4 (a), (b), (c), (d), it can apply as the wave-dissipating member 21. .

  The porous body is suitable for a catalyst carrier, and for example, kneading an antibacterial catalyst or applying an antibacterial catalyst to the wave-dissipating member 21 of the air conditioner according to the embodiment of the present invention. Thus, the wave-dissipating member 21 can suppress the propagation of germs in the drain pan 9, thereby realizing a clean air conditioner for blown air. In addition, silver etc. are utilized as an antibacterial catalyst.

<Features of First Embodiment>
(1)
In this air conditioner 1, the wave-dissipating member 21 is disposed in the vicinity of the edge 9 a on the downstream side of the air flow of the drain pan 9, and the wave of the water surface of the drain pan 9 generated by the wind pressure of the air flow is the wave-dissipating member 21. Is alleviated by. Further, the wave-dissipating member 21 is continuously arranged from the vicinity of one end of the edge 9a of the drain pan 9 to the vicinity of the other end, and there is no place where the wave on the water surface is diffracted, thereby preventing the wave from being propagated. For this reason, water splashes are prevented from jumping over the edge of the drain pan 9 and scattering.

(2)
In this air conditioner 1, the wave-dissipating member 21 has a width of 10 mm or more in the air flow direction, and the width dimension of the wave-dissipating member (air) is greater than the wavelength of the wave generated by the wind pressure of the air flow. Therefore, even if the wave is diffracted and propagates through the wave-dissipating member, the ripple is small.

(3)
In this air conditioner 1, the wave-dissipating member 21 is three-dimensionally formed of a net 21a or a porous body (for example, pumice 21b, sponge 21c, and honeycomb structure 21d). In this case, it is lightweight and easy to process and inexpensive.

(4)
In this air conditioner 1, an antibacterial catalyst is kneaded into the wave-dissipating member 21, or an antibacterial catalyst is applied, and various bacteria adsorbed on the wave-dissipating member 21 are killed by the action of the catalyst. The propagation of various bacteria is suppressed, and the air blown out becomes clean.

[Second Embodiment]
In the first embodiment, the ceiling-suspended type air conditioner has been described. However, the present invention can also be applied to an air conditioner such as a ceiling-embedded type, a wall-mounted type, and a floor-mounted type. Hereinafter, a second embodiment will be described with reference to the drawings.

  FIG. 5A is a cross-sectional view of a ceiling embedded duct type outside air processing air conditioner according to the second embodiment of the present invention, and FIG. 5B is an external view of the drain pan of the air conditioner as viewed from above. is there. In FIG. 5A, the casing 102 is a sheet metal box-shaped container, and a lower air inlet 103a and an air outlet 103b are formed respectively. An air filter 104, a fan 105, and an indoor heat exchanger 108 are disposed in the internal space of the casing 102.

  The indoor heat exchanger 108 is disposed so as to incline upward from the fan 105 side toward the air outlet 103b. At the lower end of the indoor heat exchanger 108, a drain pan 109 is provided for collecting dew condensation water generated during the cooling operation. A dewatering member 21 is provided on the edge 109a of the drain pan 109 so as to prevent the dew condensation water in the drain pan 109 from rising and scattering beyond the edge 109a. In other words, the wave kinetic energy is absorbed by the wave-dissipating member 21, thereby suppressing the ripples on the water surface. The wave-dissipating member 21 is continuously disposed from one end to the other end of the edge 109a located downstream of the air flow of the drain pan 109, as shown in FIG. The wave-dissipating member 21 does not need to be in close contact with the edge 109a, and may be continuously arranged from the vicinity of one end of the edge 109a to the vicinity of the other end at a position close to the edge 109a. Further, the wave-dissipating member 21 is preferably arranged continuously, but if the width dimension of the wave-dissipating member 21 is sufficiently secured with respect to the air flow direction (or wave propagation direction). , May be arranged intermittently.

  Further, as shown in FIG. 5 (a), the indoor heat exchanger 108 is inclined so that the end on the side closer to the fan 105 is downward and the end on the side far from the fan 105 is upward, The end nearer to the fan 105 is located inside the drain pan 109. For this reason, the wind pressure of the air which flows toward the water surface in the drain pan 109 from the fan 105 is relieved, and the ripple of the water surface in the drain pan 109 is suppressed.

<Features of Second Embodiment>
In the air conditioner 101, the indoor heat exchanger 108 is inclined so that the end nearer to the fan 105 is located below and the end farther from the fan 105 is located above. An end portion closer to the fan 105 is located in the drain pan 109. For this reason, the wind pressure of the air sent from the fan 105 which acts on the water surface in the drain pan 109 is relieved, the undulation of the water surface in the drain pan is suppressed, and the splash of water splash is also suppressed.

  As described above, the present invention suppresses the ripples of condensed water accumulated in the drain pan, and is thus useful for an air conditioner of a type in which the size of the drain pan is set long in the air flow direction.

Sectional drawing of the air conditioning apparatus which concerns on 1st Embodiment of this invention. The expanded sectional view of the drain pan periphery of the air conditioning apparatus which concerns on the same embodiment. The top view of the drain pan of the air conditioning apparatus which concerns on the same embodiment. (A) Sectional drawing of a net | network (wave-dissipating member). (B) Sectional drawing of a pumice stone (wave-dissipating member). (C) Sectional drawing of sponge (wave-dissipating member). (D) Sectional drawing of a honeycomb structure (wave-dissipating member). (A) Sectional drawing of the ceiling embedded duct type | mold outside air processing air conditioner which concerns on 2nd Embodiment of this invention. (B) The external view which looked at the drain pan of the air conditioner from the upper direction. The expanded sectional view of the drain pan periphery of the conventional air conditioning apparatus.

Explanation of symbols

1,101 Air conditioner 5,105 Fan 8,108 Indoor heat exchanger 9, 109 Drain pan 9a, 109a Edge 21 Wave-dissipating member 21a Net (net-like body, wave-dissipating member)
21b Pumice (wave-dissipating member)
21c Sponge (wave absorbing member)
21d Honeycomb structure (wave absorbing member)

Claims (7)

A fan (5, 105) for generating an air flow with respect to the indoor heat exchanger (8, 108) and a drain pan (9, 109) for collecting the dew condensation water generated on the surface of the indoor heat exchanger (8, 108) When,
A wave-dissipating member (21) for suppressing ripples of the condensed water stored in the drain pan (9, 109);
With
The wave-dissipating member (21) is disposed in the vicinity of the air flow downstream edge (9a, 109a) of the drain pan (9, 109).
Air conditioner (1, 101). The wave-dissipating member (21) is continuously arranged from the vicinity of one end of the edge (9a, 109a) to the vicinity of the other end.
The air conditioner (1, 101) according to claim 1. The wave-dissipating member (21) has a width of 10 mm or more in the air flow direction.
The air conditioner (1, 101) according to claim 1. The wave-dissipating member (21) is a net-like body.
The air conditioner (1, 101) according to claim 1. The wave-dissipating member (21) is a porous body.
The air conditioner (1, 101) according to claim 1. The wave-dissipating member (21) is kneaded with an antibacterial catalyst or coated with an antibacterial catalyst.
The air conditioner (1, 101) according to claim 1. The indoor heat exchanger (108) is inclined such that an end portion closer to the fan (105) is located below and an end portion farther from the fan (105) is located above, The end near the fan (105) is located in the drain pan (109),
The air conditioner (101) according to claim 1.

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