JP2010014294A - Air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a clean air conditioner capable of suppressing the growth of bacteria in a drain pan and solving a problem on the clogging of a drain pump by detachably disposing a resin molding in which a medical agent for suppressing the growth of bacteria and mold is kneaded on the drain pan. <P>SOLUTION: This air conditioner comprises a heat exchanger, the drain pan 5 receiving condensate water generated from the heat exchanger, and the drain pump 4 discharging drainage 6 accumulated in the drain pan 5, the drain pan 5 has a drain socket 2 having a drainage discharge port 2a at a lower part of the drain pump 4, and the antibacterial agent-containing molding 1 obtained by kneading an antibacterial component into a base material by a prescribed weight ratio is disposed on the drain socket 2 in proximity to the drain pump 4. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an air conditioner (indoor unit) including a heat exchanger, a drain pan that receives condensed water generated from the heat exchanger, and a drain pump that discharges drain water accumulated in the drain pan. More specifically, the present invention relates to a technique for preventing the drain pump from clogging by inhibiting the growth of bacteria and mold that cause the clogging of the drain pump with an antibacterial agent.

  In a conventional air conditioner, the water condensed in the heat exchanger becomes drain water and is stored in a drain pan, and the drain water is drained outside the machine through a drain pipe by a drain pump. The drain pan is made of an ABS resin (acrylonitrile, butadiene, styrene copolymer synthetic resin) or the like, in which the water receiving part hardly leaks.

Drain water enters bacteria and molds in the air and is easy to propagate. Due to its own viscosity and product, the drain pump may clog and cause poor drainage. For this reason, the growth of fungi and fungi has been suppressed by kneading or applying a drug that suppresses the growth of fungi and fungi into the drain pan.
Japanese Patent Laid-Open No. 9-53837 Japanese Utility Model Publication No. 4-78418 Japanese Utility Model Publication No. 4-57123

  However, when the drug is kneaded into the resin in the drain pan water receiving portion, if the weight ratio of the drug to the resin is high, the strength may decrease, or water may leak after the drug is eluted. For this reason, since the weight ratio of the drug to the resin can be kept small, the life is short.

  Moreover, when apply | coating, in order to heighten an effect, it took time to apply in large quantities, and there existed a subject which requires enormous cost.

  Moreover, there were problems in quality such as peeling.

  In addition, when the effect is lost, the drain pan must be replaced, and the disposal of unnecessary items has a great environmental impact.

  This invention was made in order to solve the above problems, and by providing a resin molded product kneaded with a drug that suppresses the growth of fungi and fungi in the drain pan, the fungus in the drain pan can be detachably provided. Providing a clean air conditioner that suppresses breeding, eliminates clogging of the drain pump.

An air conditioner according to the present invention is an air conditioner including a heat exchanger, a drain pan that receives condensed water generated from the heat exchanger, and a drain pump that discharges drain water accumulated in the drain pan.
The drain pan has a drain socket in which a drain drain port is formed below the drain pump,
An antibacterial agent-containing molded product in which an antibacterial component is kneaded into a base material at a predetermined weight ratio is detachably attached to the drain socket in the vicinity of the drain pump.

  In the air conditioner according to the present invention, an antibacterial agent-containing molded product in which an antibacterial component is kneaded into a base material at a predetermined weight ratio is detachably attached to a drain socket in the vicinity of the drain pump. There is no fear of strength reduction or water leakage, and the weight ratio of the antibacterial component can be increased, so that the life of the antibacterial agent-containing molded product can be extended. In addition, the antibacterial agent-containing molded product can be easily replaced.

Embodiment 1 FIG.
First, the definition of the air conditioner in the present embodiment will be described. The air conditioner in the present embodiment is an air conditioner including a heat exchanger, a drain pan that receives condensed water generated from the heat exchanger, and a drain pump that discharges drain water accumulated in the drain pan. Specifically, there is a ceiling-embedded air conditioner (there is a type that has a decorative panel and the decorative panel is exposed in the room, and a type in which the entire body is installed behind the ceiling), and an optional top that is equipped with a drain pump. These are a suspended air conditioner and a wall-mounted air conditioner.

  In the present embodiment, the following description will be given by taking a ceiling-embedded air conditioner (a type having a decorative panel and exposing the decorative panel in a room) as an example. However, the ceiling-embedded air conditioner is merely an example, and the present invention is not limited to this.

  1 to 10 show the first embodiment, and FIG. 1 is a perspective view of a state where the ceiling-embedded air conditioner 100 (indoor unit) is attached to the ceiling of the room 45, as viewed from the room 45, FIG. Is a cross-sectional view of the ceiling-embedded air conditioner 100, FIG. 3 is a vertical cross-sectional view of the ceiling-embedded air conditioner 100, FIG. 4 is a vertical cross-sectional view of the vicinity of the drain pump 4, and FIG. 1 (a) is a plan view, (b) is a front view, (c) is a side view), FIG. 6 is a perspective view showing an antibacterial agent-containing molded article 1, and FIG. FIG. 8 is a cross-sectional view taken along the line ZZ in FIG. 7, FIG. 9 is a cross-sectional view taken along the line Y-Y in FIG. 7, and FIG. It is a perspective view which shows the state immediately before attaching to.

  As shown in FIG. 1, in the ceiling-embedded air conditioner 100 (indoor unit), a substantially rectangular decorative panel 47 provided at the lower part of the ceiling-embedded air conditioner 100 can be seen on the ceiling of the room 45. It is buried in the state. Near the center of the decorative panel 47 is formed along a substantially rectangular grille 38 (suction port) communicating with the air suction port to the ceiling-embedded air conditioner 100 and each side (four sides) of the housing 20. In addition, there are four outlets 48 (four) communicating with the main body outlet 40 (see FIG. 3), and each outlet 48 is provided with a vane 49 that controls the direction of the blown air.

  As shown in FIG. 2, the casing 20 has a substantially quadrangular cross-sectional shape like the decorative panel 47. A main body outlet 40 is formed along each side (four sides) of the housing 20. A blower 30 (centrifugal blower) is installed at a substantially central portion of the housing 20. A heat exchanger 7 (substantially C-shaped) is arranged in a substantially annular shape so as to surround the blower 30.

  Further, the drain pump 4 is disposed at one corner of the casing 20 having a substantially square cross section. The drain pump 4 discharges the drain water accumulated in the drain pan 5 that receives the condensed water generated from the heat exchanger 7 to the outside of the housing 20.

  As shown in FIG. 3, a blower 30 (centrifugal blower) having a fan 30a (turbo fan) whose lower side is a suction port and a fan motor 30b for driving the fan 30a at a substantially central portion in the housing 20 is provided. Is placed.

  A fan motor 30b is attached to the top surface side of the housing 20, and a bell mouth 50 for introducing air into the fan 30a is disposed below the fan 30a.

  Further, a heat exchanger 7 (substantially C-shaped) is arranged in a substantially annular shape so as to surround the fan 30 a, and a drain pan 5 is installed at the lower part of the heat exchanger 7. The heat exchanger 7 constitutes a refrigeration cycle together with a compressor or the like that compresses refrigerant of an outdoor unit (not shown). In the heat exchanger 7, the indoor air sucked from the grill 38 by the fan 30a and the refrigerant of the refrigeration cycle exchange heat to generate cold air or hot air.

  On the outside along each side of the drain pan 5, there is a main body outlet 40 that communicates the secondary side of the heat exchanger 7 with the room, and communicates with the outlet 48 of the decorative panel 47.

  A vane 49 is attached to the air outlet 48, and adjustment of the blowing direction of the cold air or the hot air generated by the heat exchanger 7 is possible. The shape of the vane 49 is substantially the same as that of the air outlet 48, and is designed in consideration of the design that substantially closes the air outlet 48 when the vane 49 is closed.

  A substantially rectangular grill 38 is attached to the opening at the substantially center of the decorative panel 47. The grill 38 is engaged with the decorative panel 47 by, for example, claws.

  FIG. 4 is a longitudinal sectional view of the vicinity of the drain pump 4. In the present embodiment, the water condensed in the heat exchanger 7 is stored in the drain pan 5 as drain water 6 (hereinafter sometimes simply referred to as water). As described above, the antibacterial agent-containing molded article 1 in which a drug (antibacterial agent) that suppresses the growth of bacteria and molds is kneaded is characterized.

  The material of the drain pan 5 installed below the heat exchanger 7 is polystyrene foam, and the skin layer 5a made of ABS resin is integrally formed on the surface. The thickness of the skin layer 5a is about 0.5 mm.

  The reason why the drain pan 5 is made of expanded polystyrene is as follows. There is a heat exchanger 7 above the drain pan 5. For example, during cooling operation of the ceiling-embedded air conditioner 100, the temperature of the heat exchanger 7 becomes lower than the room air, and the drain pan 5 is also removed from the heat exchanger 7. It is cooled by heat transfer. Therefore, it is necessary to insulate in order to suppress dew condensation, and the material is foamed polystyrene.

  The reason why the skin layer 5a made of ABS resin is integrally formed on the surface of the polystyrene foam is as follows. Styrofoam is heat-insulating, but has a drawback that drain water 6 leaks. Therefore, in order to prevent the drain water 6 from leaking from the drain pan 5, a skin layer 5a made of ABS resin is integrally formed on the surface.

  A drain socket 2 (separate part) made of polyphenylene oxide resin having a drain discharge port 2a used when the drain pump 4 fails is disposed at a portion of the drain pan 5 almost directly below the drain pump 4 (the deepest portion of the drain pan 5). 5 is insert-molded. Since the drain outlet 2a of the drain socket 2 is unnecessary if the drain pump 4 is normal, it is normally closed with the drain plug 3.

  The reason why the drain socket 2 is made of polyphenylene oxide resin is as follows. If the drain socket 2 is molded with the same ABS resin as the skin layer 5a, the heat resistance is insufficient, and the drain drain port 2a is not sufficiently accurate. Therefore, the drain water 6 may leak even if the drain plug 3 is plugged. Therefore, the material of the drain socket 2 is a polyphenylene oxide resin that is more heat resistant than expanded polystyrene.

  However, if the polystyrene foam molding technology is improved in the future, the drain socket 2 can also be integrally formed of ABS resin having low heat resistance.

  The antibacterial agent-containing molded article 1 is detachably attached to the drain socket 2 in the vicinity of the drain pump 4. Its configuration will be described later. Reference numerals (1b, 1c, 2c, 2d) in FIG. 4 will be described later.

  The antibacterial agent-containing molded article 1 is substantially entirely immersed in the drain water 6 while the drain pump 4 is stopped. During operation of the drain pump 4, a part of the antibacterial agent-containing molded article 1 is immersed in the drain water 6. This point will also be described in detail later.

  Next, the structure of the antibacterial agent-containing molded article 1 will be described with reference to FIGS.

  The antibacterial agent-containing molded article 1 is obtained by kneading PHMG (polyhexamethylguanidine phosphate) as an antibacterial component into PE (polyethylene) as a base material. A suitable weight ratio of PHMG, which is an antibacterial component, to PE is 5% to 20%. Antibacterial components include organic substances such as PHMG and inorganic substances such as silver, and are not limited to PHMG as long as they suppress the growth of bacteria.

  Since the antibacterial agent-containing molded article 1 is a separate part from the drain pan 5, the antibacterial component may be eluted and the mechanical strength may be lowered. Therefore, the concentration of the antibacterial component can be increased as described above.

  As shown in FIGS. 5 and 6, the antibacterial agent-containing molded article 1 has a substantially rectangular shape with a side of about 50 mm in plan view (FIG. 5A). A large number of fin-shaped portions 1a are erected on the plate-like base 1e. The fin-shaped portion 1a is erected substantially vertically from the base 1e. However, it does not have to be vertical, and may be standing upright. The fin-shaped portion 1a is disposed over substantially the entire area of the base 1e. The cross section of the fin-shaped portion 1a (parallel to the base 1e) may be rectangular or round, and the shape is not limited.

  The height of the fin-shaped part 1a is about 10 mm. Moreover, the thickness of the fin-shaped part 1a is about 1-4 mm. Furthermore, the clearance gap between the adjacent fin-shaped parts 1a is about 1-4 mm.

  The reason why a large number of fin-shaped portions 1a are erected is to increase the surface area and reduce the volume.

  The antibacterial agent is gradually eluted from the antibacterial agent-containing molded article 1 immersed in the drain water 6. The eluted antibacterial agent diffuses into the drain water 6 and suppresses the growth of bacteria and mold. Since the antibacterial agent elutes from the surface of the antibacterial agent-containing molded article 1, by providing the fin-shaped portion 1a, the area of the antibacterial agent-containing molded article 1 can be increased and the volume can be reduced.

  As shown in FIG. 4, the antibacterial agent-containing molded article 1 is provided in the vicinity of the drain pump 4. This is because the drain water 6 sucked from the suction port 4a of the drain pump 4 is desired to be water having as few bacteria as possible.

  When the drain pump 4 is stopped, the water level of the drain water 6 in the drain pan 5 becomes higher than that during operation of the drain pump 4. This is because the water at the rising portion of the drain pipe (not shown) connected to the drain pump 4 flows back to the drain pan 5 when the drain pump 4 is stopped. The drain pump 4 has such a configuration. For example, when the drain pump 4 is stopped, depending on the installation status of the air conditioner, about 200 cc to about 1000 cc of water flows back to the drain pan 5 through the drain pump 4 from the rising portion of the drain pipe.

  Therefore, as described above, when the drain pump 4 is stopped, the antibacterial agent-containing molded product 1 is almost completely immersed in the drain water 6.

  The antibacterial agent eluting from the antibacterial agent-containing molded article 1 inevitably has a high concentration near the antibacterial agent-containing molded article 1, but the distant part becomes lower and the effect becomes smaller. However, when the drain pump 4 is operated, the drain water 6 is sent into the drain pipe and the antibacterial agent is stirred. When the drain pump 4 is stopped, the drain water 6 well mixed with the antibacterial agent returns to the drain pan 5, the concentration becomes nearly uniform, and the antibacterial effect increases. If the concentration is kept uniform, the amount of antibacterial agent can also be reduced.

  When the drain pump 4 is operated, the drain water 6 is fed into the drain pipe and the antibacterial agent is stirred, and when the drain pump 4 is stopped, the drain water 6 well mixed with the antibacterial agent returns to the drain pan 5 and the antibacterial effect is enhanced. There is also a method of performing the following control using

  When the cooling operation of the ceiling-embedded air conditioner 100 is stopped, the drain pump 4 is also stopped. However, after the elapse of a predetermined time after the cooling operation is stopped, the drain pump 4 is operated for a predetermined time to be eluted from the antibacterial agent-containing molded product 1. The drain water 6 containing the antibacterial agent is fed into the drain pipe, and then the drain pump 4 is stopped. When the drain pump 4 is stopped, the drain water 6 well mixed with the antibacterial agent returns to the drain pan 5, and the concentration of the antibacterial agent in the drain water 6 increases and becomes uniform.

  The above control is performed by a microcomputer (control unit) in which an operation program is incorporated. The control unit controls the operation of the ceiling-embedded air conditioner 100.

  Here, an operation method of the drain pump 4 will be described. The drain pump 4 is continuously operated during the cooling operation of the ceiling-embedded air conditioner 100. When the cooling operation of the ceiling-embedded air conditioner 100 stops, the drain pump 4 also stops. During the heating operation of the ceiling-embedded air conditioner 100, the drain pump 4 is stopped. This is because during the heating operation, the heat exchanger 7 becomes a condenser and no drain water 6 is generated.

  During cooling operation of the ceiling-embedded air conditioner 100, the drain pump 4 is not stopped even if the compressor of the refrigeration cycle is stopped (due to temperature control operation or the like).

  The drain water 6 generated during the cooling operation of the ceiling-embedded air conditioner 100 falls to the drain pan 5 and is discharged out of the housing 20 by the drain pump 4. At this time, the drain water 6 has a low temperature (about 10 ° C.), and bacteria hardly propagate.

  When the cooling operation of the ceiling-embedded air conditioner 100 is stopped, the drain pump 4 is also stopped. Therefore, water at the rising portion of the drain pipe connected to the drain pump 4 flows back through the drain pump 4 and returns to the drain pan 5. As the water level of the drain water 6 in the drain pan 5 rises, the temperature also rises. The temperature of the drain water 6 in the drain pan 5 approaches the ambient temperature. If it is summer, the temperature of the drain water 6 will rise to about 20-30 degreeC. This temperature of 20-30 ° C. is a temperature suitable for bacterial growth.

  The antibacterial agent-containing molded article 1 is substantially entirely immersed in the drain water 6 while the drain pump 4 is stopped, and a part of the antibacterial agent-containing molded article 1 is immersed in the drain water 6 while the drain pump 4 is in operation. . Since the drain water 6 generated during the cooling operation of the ceiling-embedded air conditioner 100 has a low temperature (about 10 ° C.) and bacteria hardly propagate, a part of the antibacterial agent-containing molded article 1 becomes the drain water 6. It is enough to immerse. While the drain pump 4 in which bacteria are likely to propagate is stopped, the antibacterial agent-containing molded article 1 is almost entirely immersed in the drain water 6, and during operation of the drain pump 4, a part of the antibacterial agent-containing molded article 1 is in the drain water 6. By soaking, the life of the antibacterial agent-containing molded article 1 can be extended.

  Therefore, bacteria propagate in the drain water 6 while the ceiling-embedded air conditioner 100 is stopped (usually at night) in summer. For example, the vehicle is driven for 10 hours mainly in the daytime and is stopped for the remaining 14 hours.

  If the drain pump 4 sucks the drain water 6 in which bacteria have propagated during the 14-hour stoppage at the start of the cooling operation of the next ceiling-embedded air conditioner 100, the drain pump 4 may be clogged.

  Therefore, the antibacterial agent-containing molded product 1 is installed in the drain pan 5 to suppress the growth of bacteria in the drain water 6, but the position in the drain pan 5 where the antibacterial agent-containing molded product 1 is installed is the position of the drain pump 4. Near is preferred. This is because the drain pump 4 wants to suck in the drain water 6 with as few bacteria as possible. If the antibacterial agent-containing molded article 1 is installed at a position away from the drain pump 4, the bacteria in the drain water 6 in the vicinity of the drain pump 4 may not be suppressed.

  In order to place the antibacterial agent-containing molded article 1 as close to the drain pump 4 as possible, as shown in FIG. 5A (see also FIG. 7), the drain pump 4 side of the base 1e of the antibacterial agent-containing molded article 1 An escape portion 1f that is recessed inward is formed on one side. By providing the relief portion 1 f recessed inside, the antibacterial agent-containing molded product 1 can be placed closer to the drain pump 4 accordingly.

  The shape of the inwardly recessed relief portion 1f is preferably an arc shape as shown in FIG. 5A, but may be other shapes (for example, a square, a trapezoid, a triangle, etc.).

  The antibacterial agent-containing molded article 1 includes a handle portion 1b extending outward in parallel with the base 1e on the side opposite to the escape portion 1f recessed inward. When the antibacterial agent-containing molded product 1 has reached the end of its life and is to be replaced, it is necessary to remove the antibacterial agent-containing molded product 1 that has reached the end of its life from the drain socket 2. At that time, the handle portion 1b is used. The engagement between the antibacterial agent-containing molded article 1 and the drain socket 2 will be described later.

  As described above, the antibacterial agent-containing molded article 1 includes a relief portion 1f that is recessed inward, and a handle portion 1b that extends outward in parallel with the base 1e on the opposite side of the relief portion 1f. Therefore, the antibacterial agent-containing molded product 1 in the vicinity of the ZZ line in FIG. 7 does not have the fin-shaped portion 1a or is located between the fin-shaped portions 1a, so that the drain water 6 flows to the drain pump 4. Get better.

  The flow rate of the drain pump 4 is about 600 cc / min, and the flow rate of the drain water 6 is not so fast. Therefore, if the antibacterial agent-containing molded article 1 has a portion where the flow of the drain water 6 is improved as described above, the flow of the drain water 6 to the drain pump 4 is improved.

  A protruding portion 1c is formed below the handle portion 1b of the antibacterial agent-containing molded article 1 in a direction perpendicular to the base 1e so as to be continuous with the handle portion 1b (see FIG. 4). The protruding portion 1 c is used when the antibacterial agent-containing molded product 1 is attached to the drain socket 2.

  Use when attaching the antibacterial agent-containing molded product 1 to the drain socket 2 on the other two sides orthogonal to the two sides where the relief portion 1f and the handle portion 1b of the base 1e of the antibacterial agent-containing molded product 1 are formed. A chamfered portion 1d is formed.

  Next, the engagement between the antibacterial agent-containing molded article 1 and the drain socket 2 will be described with reference to FIGS.

  As described above, the drain socket 2 is formed with the drain outlet 2a used when the drain pump 4 is out of order.

  When the antibacterial agent-containing molded product 1 is attached to the drain socket 2, the chamfered portion 1 d of the base 1 e of the antibacterial agent-containing molded product 1 is inserted into the drain socket 2, and two opposite sides (relief portions) of the base 1 e A holding portion 2b that holds down the other two sides orthogonal to the two sides on which the 1f and the grip portion 1b are formed is formed on two opposite sides of the flange portion 2d of the drain socket 2.

  In the drain socket 2, the engagement piece 2 c that the antibacterial agent-containing molded article 1 gets over at the final stage when the antibacterial agent-containing molded article 1 is attached to the drain socket 2 is a flange portion of the drain socket 2. It is formed parallel to one side of 2d (when the antibacterial agent-containing molded article 1 is attached to the drain socket 2), parallel to the antibacterial agent-containing molded article 1 grip 1b and at a predetermined interval inside thereof. ing.

  The antibacterial agent-containing molded article 1 is attached to the drain socket 2 when the protruding portion 1c gets over the engaging piece 2c of the drain socket 2 and fits between the engaging piece 2c and the flange portion 2d.

  In this state, the vertical direction of the antibacterial agent-containing molded article 1 is positioned by the pair of presser portions 2b and the plate-like portion 2e (see FIG. 10) of the drain socket 2.

  Moreover, the protrusion part 1c is positioned by the engagement piece 2c and the flange part 2d in the ZZ direction of FIG. 7 of the antibacterial agent-containing molded article 1.

  Moreover, the YY direction of FIG. 7 of the antibacterial agent-containing molded article 1 is orthogonal to the two opposite sides of the base 1e of the antibacterial agent-containing molded article 1 (two sides where the relief portion 1f and the handle portion 1b are formed). The other two sides) are positioned by the two opposite sides of the flange portion 2d where the pair of presser portions 2b of the drain socket 2 are formed.

  The antibacterial agent-containing molded product 1 is fixed to the drain socket 2 as described above.

  The method for removing the antibacterial agent-containing molded article 1 from the drain socket 2 when the antibacterial agent-containing molded article 1 is to be replaced and replaced is as follows. That is, in the state of FIG. 8, the handle 1b of the antibacterial agent-containing molded article 1 is lifted up. Then, the engagement piece 2c of the drain socket 2 is removed from between the engagement piece 2c and the flange portion 2d so that the protruding portion 1c of the antibacterial agent-containing molded product 1 gets over in the direction opposite to that at the time of attachment.

  Subsequently, the antibacterial agent-containing molded article 1 can be removed from the drain socket 2 by moving the antibacterial agent-containing molded article 1 in the opposite direction of the engagement piece 2c of the drain socket 2 and removing it from the pair of holding portions 2b. .

  Accordingly, the replacement work of the antibacterial agent-containing molded article 1 can be easily performed.

  In addition, the judgment of the lifetime of the antibacterial agent-containing molded product 1 includes, for example, a method of mixing a water-soluble pigment in the antibacterial agent. By eliminating the color of the drain water 6, it is possible to inform the life (replacement time) of the antibacterial agent-containing molded article 1.

  The exchange of the antibacterial agent-containing molded product 1 is performed by removing the drain pan 5 from the housing 20.

  As described above, according to this embodiment, the antibacterial agent-containing molded article 1 obtained by kneading PHMG (polyhexamethylguanidine phosphate), which is an antibacterial component, into PE (polyethylene), which is a base material, is provided as a drain pump 4. By installing the drain pump 4 in the vicinity of the drain pump 4, it is possible to prevent bacteria from breeding in the drain water 6 near the drain pump 4, and the drain water 6 sucked when the drain pump 4 is operated Since the amount of water is small, clogging of the drain pump 4 can be suppressed.

  In addition, since the antibacterial agent-containing molded article 1 is a separate part from the drain pan 5, the antibacterial component may be eluted and the mechanical strength may be lowered, so that the concentration of the antibacterial component can be increased.

  Further, the antibacterial agent-containing molded product 1 has a large surface area and a small volume as the antibacterial agent-containing molded product 1 has a large number of fin-shaped portions 1a erected on a plate-like base 1e. can do.

  In addition, while the drain pump 4 in which bacteria are likely to propagate is stopped, the antibacterial agent-containing molded product 1 is almost entirely immersed in the drain water 6, and during operation of the drain pump 4, a part of the antibacterial agent-containing molded product 1 is drained. By soaking in 6, the lifetime of the antibacterial agent-containing molded article 1 can be extended.

  In addition, a drain socket 2 in which a drain drain port 2a used when the drain pump 4 is broken is inserted and molded into the drain pan 5 at a portion almost directly below the drain pump 4 of the drain pan 5. The drain socket 2 is antibacterial. By attaching the agent-containing molded product 1 detachably, the antibacterial agent-containing molded product 1 can be easily attached to and removed from the drain pan 5 as necessary.

  Further, by providing a relief portion 1f recessed inward on one side of the base 1e of the antibacterial agent-containing molded product 1 on the drain pump 4 side, the antibacterial agent-containing molded product 1 is installed closer to the drain pump 4 accordingly. Can do.

  Further, the antibacterial agent-containing molded article 1 includes a relief portion 1f that is recessed inward, and a handle portion 1b that extends outward in parallel with the base 1e on the opposite side of the relief portion 1f. Since the nearby antibacterial agent-containing molded article 1 does not have the fin-shaped portion 1a or is located between the fin-shaped portions 1a, the flow of the drain water 6 to the drain pump 4 is improved.

  In addition, by mixing a water-soluble pigment with the antibacterial agent of the antibacterial agent-containing molded article 1, the drain water 6 can be informed of the life (replacement time) of the antibacterial agent-containing molded article 1 by eliminating the color.

  In addition, after a predetermined time has elapsed after the cooling operation of the ceiling-embedded air conditioner 100 is stopped, the drain pump 4 is operated for a predetermined time, and drain water 6 containing an antibacterial agent eluted from the antibacterial agent-containing molded product 1 is contained in the drain pipe. , And then the drain pump 4 is stopped, the drain water 6 well mixed with the antibacterial agent returns to the drain pan 5, and the concentration of the antibacterial agent in the drain water 6 increases and can be made uniform.

FIG. 5 shows the first embodiment, and is a perspective view of the state in which the ceiling-embedded air conditioner 100 (indoor unit) is attached to the ceiling of the room 45 as viewed from the room 45. FIG. FIG. 3 shows the first embodiment and is a cross-sectional view of the ceiling-embedded air conditioner 100. FIG. FIG. 3 is a diagram showing the first embodiment, and is a longitudinal sectional view of the ceiling-embedded air conditioner 100. FIG. 3 shows the first embodiment, and is a longitudinal sectional view in the vicinity of a drain pump 4. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows Embodiment 1, The figure which shows the antibacterial agent containing molded article 1 ((a) is a top view, (b) is a front view, (c) is a side view). FIG. 5 is a perspective view showing the antibacterial agent-containing molded article 1 according to the first embodiment. FIG. 5 shows the first embodiment and is a plan view showing a state in which the antibacterial agent-containing molded product 1 is attached to the drain socket 2. FIG. 9 shows the first embodiment and is a ZZ cross-sectional view of FIG. 7. FIG. 8 shows the first embodiment, and is a YY cross-sectional view of FIG. 7. FIG. 5 shows the first embodiment, and is a perspective view showing a state immediately before the antibacterial agent-containing molded article 1 is attached to the drain socket 2.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Antibacterial-containing molded article, 1a Fin shape part, 1b Handle part, 1c Projection part, 1d Chamfer part, 1e Base, 1f Relief part, 2 Drain socket, 2a Drain drainage port, 2b Holding part, 2c Engagement piece, 2d flange part, 2e plate-like part, 3 drain plug, 4 drain pump, 4a suction port, 5 drain pan, 5a skin layer, 6 drain water, 30 blower, 30a fan, 30b fan motor, 38 grille, 40 main body outlet, 45 rooms, 47 decorative panels, 48 air outlets, 49 vanes, 50 bell mouths, 100 ceiling-embedded air conditioners.

Claims (7)

In an air conditioner including a heat exchanger, a drain pan that receives condensed water generated from the heat exchanger, and a drain pump that discharges drain water accumulated in the drain pan.
The drain pan has a drain socket in which a drain drain port is formed below the drain pump,
An air conditioner characterized in that an antibacterial agent-containing molded product obtained by kneading an antibacterial component in a base material at a predetermined weight ratio is detachably attached to the drain socket in the vicinity of the drain pump.   The air conditioner according to claim 1, wherein the antibacterial agent-containing molded product has a fin-shaped portion standing on a plate-like base.   The air conditioner according to claim 2, wherein the antibacterial agent-containing molded product has a fin-shaped portion standing substantially vertically on a plate-like base.   The air conditioner according to any one of claims 1 to 3, wherein a relief portion recessed inward is provided on one side of the base of the antibacterial agent-containing molded product on the drain pump side.   The antibacterial agent-containing molded product is substantially immersed in the drain water while the drain pump is stopped, and a part of the antibacterial agent-containing molded product is immersed in the drain water during the operation of the drain pump. The air conditioner according to any one of claims 1 to 4, wherein   6. The antibacterial agent-containing molded product is obtained by kneading PHMG (polyhexamethylguanidine phosphate) as an antibacterial component into PE (polyethylene) as a base material at a predetermined weight ratio. The air conditioner according to any one of the above. A control unit that controls the operation of the air conditioner, and a drain pipe that is connected to the drain pump and discharges the drain water to the outside of the air conditioner,
The control unit operates the drain pump for a predetermined period of time after the cooling operation is stopped, and discharges the drain water containing the antibacterial component eluted from the antibacterial agent-containing molded product from the drain pan into the drain pipe. The air conditioner according to any one of claims 1 to 6, wherein the air conditioner is fed, and then the drain pump is stopped and the drain water is returned to the drain pan from the drain pipe via the drain pump.

Images