CN1474101A - Air conditioner - Google Patents

Abstract

To provide an air conditioner which satisfactorily suppresses the propagation of bacteria floating in the air which are taken into the indoor machine of the air conditioner, on a drain pan over a long period, and prevents the clogging of a drain pipe.A metallic material 7 consisting of a metal having an ionization tendency larger than a fin 2a is arranged in a passage for dew condensation water extending from the fin 2a of a heat exchanger 2 to the drain pan 5, the metallic material 7 is electrically conducted to the heat exchanger 2, and a chemical conversion coating layer 8 is provided on the surface of the metal material 7. The bacteria which become negatively charged are successively collected by cataphoresis to the metallic material 7 side which has a low potential by release of plus metal ions by the difference in ionization tendency between the fin 2a of the heat exchanger 2 and the metallic material 7, the free activity of the bacteria is consequently suppressed, and the bacteria then become extinct. The amount eluted as metal cation of the metallic material 7 is controlled by the chemical conversion coating layer 8.(C)2004,JPO.

Description

Air-conditioner

Technical field

The present invention relates to air-conditioner, particularly the indoor machine of air-conditioner structure.

Background technology

For indoor machine of air-conditioner, when freezing and dehumidifying operation, moisture contained in the room air is discharged into outdoor through water-collecting tray after dewfall on the heat exchanger of indoor set as draining.This indoor set is particularly when summer, the various bacteriums because the interior space is being floated, when operation of air conditioner, thereby these bacteriums will be attached to the metals (aluminium alloy) of heat exchanger arrive water-collecting tray on the fin, being trapped in dew on the water-collecting tray is difficult to dry, can be very fast rotten and form vegetative environment under the humid atmosphere in plum rains time here.In this case, because various bacterial reproductions can give out stench from the position of water-collecting tray, even also can cause obstruction in drainpipe.

At present, the method that solves this class problem has: the coating of antiseptic has been added in coating on water-collecting tray; On the surface resin of water-collecting tray, mix antiseptic during manufacturing; Bar-shaped antiseptic is set in water-collecting tray.For example: in JP62-288427A, just used the such scheme of coating that antiseptic has been added in coating on the surface of water-collecting tray, in JP8-233303A, used and utilized the resin that has mixed antiseptic to make the such scheme of superficial layer of water-collecting tray.

Yet, the current methods that utilizes antiseptic recited above, nothing more than being exactly to make in the surface resin material of water-collecting tray to comprise antiseptic, this makes the useful effect of antiseptic only limit near its surperficial part, and, make the antiseptic of high price cause sizable waste owing to can not guarantee long term life.

The technical scheme of invention

Top such problems of the prior art propose for solution resembles in the present invention, its objective is provides a kind of air-conditioner, it can effectively suppress to enter the breeding of aerial planktonic bacteria on water-collecting tray in the air conditioner room unit for a long time, prevents that the drainpipe that is caused by various bacteriums from stopping up.

For first invention that addresses the above problem is a kind of air-conditioner with indoor set, comprising: the heat exchanger on path at least with metal fin from the inlet scoop to air outlet; Will be through the indoor indoor blowing fan that blows out of the wind direction after the above-mentioned heat exchanger temperature adjustment; The water-collecting tray of the dew that reception is dripped from above-mentioned heat exchanger; It is characterized in that: be provided with by the metal metal parts bigger from the path that above-mentioned heat exchanger fin flows to water-collecting tray than above-mentioned fin ionization tendency at dew, above-mentioned metal parts and above-mentioned heat exchanger are electrically connected, chemical conversion are set at least one surface of above-mentioned metal parts handle thin layer.

In said structure, airborne planktonic bacteria, drips on the water-collecting tray through fin attached on the heat exchanger fin with dew.Because metal parts is electrical connection with fin, therefore, when making the bottom of metal parts and fin be immersed in the dew by being trapped in the dew in the water-collecting tray, molten in dew as metal cation by the part of the metal metal parts bigger than fin ionization tendency.At this moment, be mixed in the bacterium in the dew, because the self-contained negative electricity He to a certain degree of thalline, thereby attracted by the above-mentioned positive metal ion of metal parts.That is to say, because the difference of the ionization tendency of heat exchanger fin and metal parts, the bacterium of carrying negative electricity He is gathered gradually owing to discharge the metal parts side that positive metal ion becomes electronegative potential by electrophoresis, suppressed the free movable of bacterium like this.In this way, the sluggish bacterium of metabolic function is died down, and very fast death.And, according to the metal species of metal parts, dissolve the metal ion itself that and also have antibacterial action, therefore dissolve the breeding that the metal ion that also can suppress to be mixed in the bacterium in the dew.In addition, because at least one surface of metal parts, chemical conversion is set handles thin layer, the amount that metal parts dissolves metal cation is controlled, the surface that can also prevent metal parts is simultaneously covered by particle-shaped metal oxide owing to oxidation, therefore can guarantee the stripping of metal cation in a long time.In addition, this device can also prevent that by the breeding of the long-time effectively various bacteriums of inhibition on water-collecting tray the drainpipe that causes owing to various bacteriums from stopping up.

Second invention is to invent described air-conditioner at first, it is characterized in that: chemical conversion is handled thin layer and is comprised phosphoric acid processing film.

In this structure, phosphoric acid is handled film be used as chemical conversion processing thin layer, therefore can prevent to generate a large amount of metal oxides effectively

The 3rd invention is at the 1st the described air-conditioner of invention, it is characterized in that: on a surface of metal parts diaphragm is set.

When adopting this structure,, the stripping quantity of metal ion is reduced, thereby make sheet metal parts that the long life-span be arranged, therefore can keep it to suppress vegetative effect for a long time owing to be provided with diaphragm.

The 4th invention is at the arbitrary described air-conditioner of 1-3 invention, it is characterized in that: osculum is set on metal parts.

When employing was not provided with the structure of osculum on metal parts, it is many that the dew that is detained for a long time on metal parts becomes, and makes near the part with small size of end face of metal parts that the such adverse effect of concentrated corrosion can take place.At this situation, when adopting the structure that osculum is set recited above on metal parts, because dew flows on the water-collecting tray from metal parts by osculum, the concentrated corrosion of metal parts is suppressed, thereby make it have the long life-span.

The 5th invention is that it is characterized in that: metal parts is zine plate, galvanized steel plain sheet or kirsite plate at the arbitrary described air-conditioner of 1-3 invention.

If adopt this structure, select zine plate, galvanized steel plain sheet or kirsite plate cost is reduced as metal parts.

The 6th invention is a kind of air-conditioner with indoor set, comprising: the heat exchanger with metal fin on the path from the inlet scoop to air outlet at least; Will be through the indoor indoor blowing fan that blows out of the wind direction after the above-mentioned heat exchanger temperature adjustment; The water-collecting tray of the dew that reception is dripped from above-mentioned heat exchanger; It is characterized in that: be provided with by the metal metal parts bigger from the path that above-mentioned heat exchanger fin flows to water-collecting tray than above-mentioned fin ionization tendency at dew, above-mentioned metal parts and above-mentioned heat exchanger are electrically connected, on the path of the dew from the water-collecting tray to the drain outlet, recess are set.

In this structure, because the difference of the ionization tendency of heat exchanger fin and metal parts, the bacterium of carrying negative electricity He is gathered by electrophoresis gradually owing to discharge the metal parts side that positive metal ion becomes electronegative potential, suppressed the free movable of bacterium like this, the sluggish bacterium of metabolic function is died down, and very fast death.In addition, owing on the dew passage from the water-collecting tray to the drain outlet, form recess, therefore, even the metal ion in stripping becomes under the situation of solid matters such as particle-shaped metal oxide, also can make this solid matter be trapped in recess, less diffluence outside indoor set, thus the draining clogging that causes because of solid matters such as particle-shaped metal oxide when keeping sterilization effect, can also be prevented, make equipment have the long life-span.

The 7th invention is at the 6th the described air-conditioner of invention, it is characterized in that: have the embolism that can dismantle on the recess.

By this structure, the embolism that is arranged on recess can unload easily, therefore can remove the solid matters such as metal oxide that are trapped in recess.

The 8th invention is that it is characterized in that: the basal area of the embolism that can dismantle is basic identical with the base area of recess at the 7th the described air-conditioner of invention.

If adopt this structure, can all the solid matters such as metal oxide that are trapped on the recess bottom surface easily be removed by embolism being unloaded just, so the draining that can not take place to produce is therefrom stopped up, make equipment longevityization.

The 9th invention is at the 7th or 8 the described air-conditioner of invention, it is characterized in that: the embolism that can dismantle is can be from the bottom surface dismounting of recess.

If adopt this structure, can therefore improve the maintainability of equipment by hand being stretched into and embolism is pulled up from air outlet etc.

The 10th invention is that it is characterized in that: the embolism that can pull down is provided with O type ring in the junction with recess at 7-8 the described air-conditioner of invention.

If take this structure, O type ring improves the sealing between recess and the embolism, has therefore improved the reliability of equipment.

The 11st invention is a kind of air-conditioner with indoor set, comprising: the heat exchanger with metal fin on the path from the inlet scoop to air outlet at least; Will be through the indoor indoor blowing fan that blows out of the wind direction after the above-mentioned heat exchanger temperature adjustment; The water-collecting tray of the dew that reception is dripped from above-mentioned heat exchanger; It is characterized in that: be provided with by the metal metal parts bigger from the path that above-mentioned heat exchanger fin flows to water-collecting tray than above-mentioned fin ionization tendency at dew, be connected with above-mentioned heat exchanger by the both ends that make above-mentioned metal parts, thereby it is physically supported, above-mentioned metal parts and above-mentioned heat exchanger are electrically connected.

In said structure, airborne planktonic bacteria, drips on the water-collecting tray through fin attached on the heat exchanger fin with dew.Because metal parts is electrical connection with fin, therefore when making the bottom of metal parts and fin be immersed in the dew by being trapped in the dew in the water-collecting tray, molten in dew as metal cation by the part of the metal metal parts bigger than fin ionization tendency.At this moment, be mixed in the bacterium in the dew and since thalline self-contained to a certain degree negative electricity He and attracted by the above-mentioned positive metal ion of metal parts.That is to say, because the difference of the ionization tendency of heat exchanger fin and metal parts, the bacterium of carrying negative electricity He is gathered gradually owing to discharge the metal parts side that positive metal ion becomes electronegative potential by electrophoresis, suppressed the free movable of bacterium like this.In this way, the sluggish bacterium of metabolic function is died down, and very fast death.And according to the metal species of metal parts, what dissolve the metal ion that itself also has antibacterial action, therefore dissolves the breeding that the metal ion that also can suppress to be mixed in the bacterium in the dew.In addition, this device can also prevent that by the breeding of the long-time effectively various bacteriums of inhibition on water-collecting tray the drainpipe that causes owing to various bacteriums from stopping up.In addition, the both ends of metal parts are connected to it is physically supported, thereby so just utilize heat exchanger to make the metal parts location that it is firmly fixed.

The 12nd invention is a kind of air-conditioner with indoor set, comprising: the heat exchanger with metal fin on the path from the inlet scoop to air outlet at least; Will be through the indoor indoor blowing fan that blows out of the wind direction after the above-mentioned heat exchanger temperature adjustment; The water-collecting tray of the dew that reception is dripped from above-mentioned heat exchanger; It is characterized in that: be provided with by the metal metal parts bigger from the path that above-mentioned heat exchanger fin flows to water-collecting tray than above-mentioned fin ionization tendency at dew, at least one through hole is set on this metal parts, simultaneously, above-mentioned metal parts and above-mentioned heat exchanger are electrically connected.

If use such structure, be provided with by the metal metal parts bigger from the path that heat exchanger fin flows to water-collecting tray at dew than above-mentioned fin ionization tendency, thereby suppress the free movable of bacterium by the mode that makes bacterium concentrate on the metal parts side gradually, bacterium is killed.In addition, in this case, be exactly can killing bacteria to the requirement of metal parts, and can use for a long time.In this way, decapacitation suppresses outside the breeding of the various bacteriums on the water-collecting tray long-term effectively, can also prevent to keep good sanitary condition like this, again because of not stopping up the reliability that has improved indoor set because of various bacterial drainpipes stop up.And, have under the situation of antibacterial action at metal cation itself from the metal parts stripping, can also obtain better to suppress vegetative effect.In addition, adopt when on metal parts the structure of through hole not being set, the dew that is trapped on the metal parts after long-time becomes many, makes near the end face of metal parts and the adverse effect of concentrating corrosion such takes place at the part place of small size.In contrast,,, therefore can suppress concentrated and corrode when like that the structure of through hole being set on metal parts when adopting because dew can flow on the water-collecting tray from metal parts by through hole to above-mentioned.

The 13rd invention is at the 12nd the described air-conditioner of invention, it is characterized in that: metal parts its with at least one connecting portion of heat exchanger on form the hole that is connected with screw, screw is passed this screw connecting hole, thereby and be screwed into metal parts is fixedly attached on the heat exchanger.

If the employing said structure because metal parts is securely fixed on the heat exchanger by screw, even so metal parts external force effect such as stretched, can easily not come off from the end of heat exchanger yet.And, can also prevent because of the metal parts draining that the causes accident of splashing that drops from the heat exchanger end.In addition, can carry out the dismounting and the installation of metal parts at an easy rate, the maintainability when therefore having improved the heat exchanger cleaning.

The 14th invention is at the 11st or 12 the described air-conditioner of invention, it is characterized in that: metal parts its with at least one connecting portion of heat exchanger on form the claw that is connected usefulness, by inserting in the hole of this claw being entrenched in form on the heat exchanger, thereby make the two connection.

If adopt such structure, can not need attaching parts such as screw, reduced part count like this, reduced attended operation required man-hour, only make simultaneously and will fixingly be entrenched in inserting in the hole of heat exchanger with claw and just metal parts can be connected on the heat exchanger simply, so improved the maintainability of heat exchanger when operations such as cleaning what form on the metal parts.

The 15th invention is at the 11st or 12 the described air-conditioner of invention, and it is characterized in that: metal parts is connected with heat exchanger by riveted joint with at least one connecting portion of heat exchanger at it.

If adopt such structure, just can metal parts be connected on the heat exchanger by riveted joint, component count is increased, and can carry out simple and effective connection, help producing in batches, can make with low cost.

The 16th invention is at the 11st or 12 the described air-conditioner of invention, it is characterized in that: metal parts is connected on the heat exchanger by spot welding at least one connecting portion of itself and heat exchanger.

If adopt such structure, just metal parts can be connected on the heat exchanger extremely securely by spot welding.Therefore even external force effects such as metal parts is stretched can easily not come off from the end of heat exchanger yet, can prevent to reduce number of components simultaneously because of the draining that dropping of metal parts the causes accident of splashing.

The 17th invention is at the 11st or 12 the described air-conditioner of invention, it is characterized in that: the channel part at the dew that drips from heat exchanger of metal parts forms concaveconvex shape portion.

If take such structure, by forming concaveconvex shape portion, be that flat situation is compared with metal parts, the surface area of metal parts has increased, and therefore can suppress its activity by concentrating bacterium more, and it is killed.

The 18th invention is at the 17th the described air-conditioner of invention, and it is characterized in that: the recess of concaveconvex shape portion and protuberance extend on the direction substantially parallel with bearing of trend before and after the fin.

In this structure, insert such arrangement between fin by protuberance with metal parts, make the interval between fin and the metal parts equal substantially, thereby shortened this interval.Like this, even the potential difference between fin and the metal parts is less, also can keeps the bacterium that makes in the dew and carry out the required electric-field intensity of electrophoresis to the metal parts side of electronegative potential.

The simple declaration of accompanying drawing

Fig. 1 (a) is the schematic side sectional drawing according to the air conditioner room unit of first embodiment of the invention.

Fig. 1 (b) is the kirsite plate of above-mentioned indoor set and near the Zoom Side sectional drawing of position thereof.

Fig. 2 is the schematic front elevation of above-mentioned indoor set.

Fig. 3 has shown the stereogram of offering under the osculum situation on the kirsite plate of the air conditioner room unit of the 2nd embodiment of the present invention.

Fig. 4 is the schematic side sectional drawing of the air conditioner room unit of the 4th embodiment according to the present invention.

Fig. 5 is the schematic front elevation of above-mentioned indoor set.

Fig. 6 shows the stereogram of critical piece of the kirsite plate fixed position of above-mentioned indoor set.

Fig. 7 is the 5th embodiment according to the present invention, the stereogram of the kirsite plate that is provided with in the heat exchanger bottom of air conditioner room unit.

Fig. 8 shows the stereogram of critical piece of kirsite plate fixed position of the air conditioner room unit of the 6th embodiment of the present invention.

Fig. 9 is the heat exchanger of air conditioner room unit of the 9th embodiment of the present invention and the stereogram that is arranged on the kirsite plate of heat exchanger bottom.

Figure 10 (a) is the heat exchanger of air conditioner room unit of the 10th embodiment of the present invention and the stereogram that is arranged on the kirsite plate of heat exchanger bottom.

Figure 10 (b) is the front elevation of the schematic critical piece of the heat exchanger bottom of above-mentioned indoor set and kirsite plate.

The embodiment explanation

With reference to the accompanying drawings the embodiment of the invention is described.

(embodiment 1)

Fig. 1 (a) is the schematic side sectional drawing according to the air conditioner room unit of first embodiment of the invention, and the kirsite plate of the above-mentioned indoor set of Fig. 1 (b) and near the Zoom Side sectional drawing of position thereof, Fig. 2 are the schematic front elevations of above-mentioned indoor set.

As Fig. 1 (a), shown in Figure 2, air conditioner room unit 20 has: the suction grid 1 that is used for sucking room air; Be separately positioned on the front and back side, when cooling and dehumidifying operation, make from sucking the heat exchanger 2 that grid 1 inhaled air cools off, dehumidifies by aluminum alloy fin 2a; To be delivered to tubular (cross flow) final air outlet 4, that be used as indoor blower blower fan by the air after heat exchanger 2 coolings, the dehumidifying; The resin water-collecting tray 5 of the dew that reception flows down from front side heat exchanger 2; With the resin water-collecting tray 6 that receives the dew that flows down from rear side heat exchanger 2.In addition, do not illustrate among the figure, on the interior location of indoor set 20 both sides, the connection stream that the dew that is trapped in the rear side water-collecting tray 6 is flow to be arranged on the front side water-collecting tray 5 of these water-collecting tray 6 belows is being set also.In addition, both sides, bottom surface at front side water-collecting tray 5 are provided with drain outlet 5a respectively, on a drain outlet 5a, connecting the drainpipe 16 to the outside, on another drain outlet 5a, do not connecting drainpipe 16, but the drain cap (not shown) is installed dewfall 7 water row.

Here special needs to be pointed out is, between heat exchanger 2 lower surfaces, the front side of this indoor set 20 and water-collecting tray 5, just, kirsite plate 7 as metal parts is being set from the path that the fin 2a of heat exchanger 2 flows to water-collecting tray 5 at dew.

The fin 2a of heat exchanger 2 can be by for example 0.29wt%Fe, 0.26wt%Mn, 0.07wt%Si, 0.07wt%Ti, 0.01wt%Cu, all the other constitute for the aluminum alloy materials that aluminium forms, the ionization tendency of this material is littler than fine aluminium and pure zinc, but big than pure iron.Therefore the big material of using than the fin 2a of heat exchanger 2 as the kirsite plate 7 of metal parts of ionization tendency, what use in this embodiment is the material that is made of 99.577%Zn, 0.35%Cu, 0.07%Ti, 0.003%Al.

In addition, do not illustrate among the figure, have on each fin 2a for improving the longitudinal slot that heat exchange efficiency is provided with, this structure helps keeping dew.In addition, kirsite plate 7 is arranged to cover from the drip whole zone of passage of dew of heat exchanger 2, and its length is identical with the bottom of heat exchanger 2 fin 2a with width.

As shown in Figure 2, the end, the left and right sides of kirsite plate 7 is crooked upward, by these two ends, is fixed on the heat exchanger 2 with screw.Like this, utilize this two side ends, kirsite plate 7 is physically located and is supported on the heat exchanger, also makes between them simultaneously to be electrically connected.In addition, therefore above-mentioned screw fixed position can prevent that the tie point of this joint portion from producing the phenomenon of poor flow because of corrosion in the place, higher position that can not be immersed in the draining.In addition, except the syndeton that is screwed, also can use syndetons such as embedding, riveted joint, welding, in addition, also can kirsite plate 7 and heat exchanger 2 be electrically connected by using jumper etc.

Such as Fig. 1 (b) amplification show and like that to form chemical conversion processing thin layer 8 on the surface of kirsite plate 7 (being table, the two sides, the end of kirsite plate 7 in this embodiment).It is to utilize chemical reactions such as sulfuration or oxidation in solution that this chemical conversion is handled thin layer 8, makes to form thin sulfide or sull on as kirsite plate 7 surfaces of metal parts and form.Can suppress the formation of excessive zinc oxide by this chemical conversion thin layer 8, prevent that the surface of kirsite plate 7 from being covered by particle-shaped metal oxide.In addition, chemical conversion is handled all kinds that chemical reactions such as having sulfuration of utilizing or oxidation is handled.If, can use the processing of phosphoric acid film, chromate processing etc. in order not increase the stripping of ionization tendency, inhibition metal ion.Preferably use the chemical conversion processing that influences fewer phosphoric acid film simply, to earth environment.In addition, the thickness that relates to chemical conversion processing thin layer 8 does not have concrete regulation, does not wish that it is too thick, and this can make the stripping of metal ion tail off, and antibiotic property descends, and only thickness is 1 μ m.

In addition, kirsite plate 7 not with the fin 2a lower face side vis-a-vis of heat exchanger 2, on the surface of kirsite plate 7, be provided with and suppress vegetative diaphragm 9.In this case, if the thickness of diaphragm 9 is thinner than 10 μ m, zinc ion still can stripping, and this is undesirable, therefore preferably is thicker than 10 μ m.In addition, diaphragm 9 should use the material that can suppress the zinc ion stripping, for example uses the diaphragm 9 that is formed by common resins such as allyl resin, polyurethane resins.

In addition, on the whole surface of kirsite plate 7 upper surfaces, pasting the thick insulator 10 that forms by the kapok nonwoven layer of 1mm, thereby it can make the fin 2a of kirsite plate 7 and heat exchanger 2 can not keep apart to short circuit to make insulation between them (also prevent them from damaging because of contact), also has the hydrophily that can keep moisture.Here, the insulator 10 that is provided with on kirsite plate 7 can be that the fin 2a that can prevent heat exchanger 2 contacts with kirsite plate 7 and itself or any material of hydrophily article.Use the hydrophily article dew is remained on the kirsite plate 7 for a long time, make it improve antibiotic effect owing to increasing the time of contact with kirsite plate 7 as insulator 10.More particularly, insulator 10 can use cotton or polyester non-woven fabric, polyurethane, nylon, polyvinyl alcohol etc.In addition, as shown in Figure 2, on the water-collecting tray 5, lead on the passage of dew of drain outlet 5a recess 11 be set.Like this, zinc oxide or zinc oxide that the back forms are trapped in recess 11 places zinc and airborne oxygen and carbon dioxide to be reacted.Here, there is no particular limitation for the size of recess, so long as get final product than the zinc oxide that generates in projected life at air-conditioner or the big volume of amount of zinc oxide.

According to " room air conditioner is consumed the voltameter basis of calculation between the operating period " of the distribution of Japanese refrigeration air-conditioner TIA (JRA4046), the cooling time of air-conditioner is an annual 1998 hours, calculated by 10 years projected life, can carry out about 20,000 hours refrigerating operaton.In temperature is 40 ℃, and relative humidity is the device that installs an air-conditioner in 50% the room, measures the reduction of kirsite plate 7 to find, use the kirsite plate of 65g, when operation amounted to 1000 hours, its weight reduced 0.5%.When adjusting it for 20,000 hours situation of use, the weight of minimizing is 6.5g.Suppose that these zinc have all become zinc carbonate, when its density was 4.44, volume was 2.6cm ³In addition, when the shape of recess 11 is that diameter is the cylindrical and this recess 11 of 10mm when having only, need it to have the degree of depth of 3cm.If resemble when two positions recess 11 being set shown in Figure 2, each can be that 1.5cm is dark.In addition, can also on the water-collecting tray 5 that is positioned at recess 11 downstreams, projection be set.By projection is set, can confuse flowing of this place's draining, solids mass-energy such as zinc compound is more effectively become trapped in the recess 11.Projection can form in the pattern making procedure when water-collecting tray 5 moulding, also can be after water-collecting tray 5 form, and again that protrusion is thereon bonding subsequently.In addition, by on the bottom surface of recess 11, pasting nonwoven etc., can make the solid matter that traps be not easy to break away from.

In addition, demountable embolism 12 is set on the bottom surface of recess 11.When the state that embolism 12 takes off, the hole of a perforation of the whole formation in the bottom surface of recess 11.The basal area of demountable embolism 12 equates with the floor space of recess 11.In addition, this embolism 12 itself is made the butt plug screw, by the bottom surface of its thread part from recess 11 is screwed into, and embolism 12 is fixed on the recess 11.And just it can be taken off by stretch into finger rotation embolism 12 from air outlet 4.In addition, bolt 12 is provided with O shape ring 13 with the junction of recess 11, and this O shape ring 13 can guarantee sealing state good between them.

Take said structure, when driving indoor set 20 and carry out refrigerating operaton, room air sucked by sucking grid 1, inhaled air by the fin 2a cooling of heat exchanger 2, dehumidifying after, by cross flow fan 3 air-supplies, from air outlet 4 to indoor discharging cold wind.At this moment, the dew that forms during owing to heat exchanger 2 dehumidifying flows in each water-collecting tray 5 and 6, accumulates in the dew in the rear side water-collecting tray 6, and by being communicated with water-collecting tray 5 sides that runner flows into the front side, the dew that is trapped in together in the front side water-collecting tray 5 merges.Be trapped in dew in the water-collecting tray 5 and the outlet 5a of drain cap finally never is installed is discharged to the outside, a side of drain cap is being installed, on water-collecting tray 5, have the dew that is detained through drainpipe 16.

Here, dew is when the fin 2a of heat exchanger 2 drips on the water-collecting tray 5, through being located at the kirsite plate 7 in this runner.So, when dew is trapped in the water-collecting tray 5, when making fin 2a bottom and kirsite plate 7 be immersed in the dew, owing to the difference of ionization tendency, forms the electromotive force of 0.4V between fin 2a that is electrically connected and kirsite plate 7.Thus, be released from zinc ion than stripping on the big kirsite plate 7 of the fin 2a ionization tendency of heat exchanger 2.Floating various bacteriums mix under the situation to the dew in air, because these bacterium itself are carried negative electrical charge to a certain degree, when drip in the position of passing through kirsite plate 2 from fin 2a, the kirsite plate 7 that is released out zinc ion attracts, forming electrophoresis also compiles gradually, so just limited the free movable of bacterium, the sluggish bacterium of metabolic function is died down, and very fast death.And, owing to also have antibacterial action (particularly the staphylococcus to yellow has antibacterial action) from the zinc ion of kirsite plate 7 strippings itself, thus also played the effect of making bacterium, sterilization.

In addition, when taking said structure, by being set, chemical conversion handles thin layer 8 on the surface of kirsite plate 7, not only can control from the amount of the zinc ion of kirsite plate 7 strippings, and can also prevent that the surface of kirsite plate 7 from being covered so unfavorable situation owing to oxidation by particle-shaped metal oxide such as zinc oxides.In addition, by kirsite plate 7 diaphragm is not set with the fin 2a opposing backside surface of heat exchanger 2, can prevent metal cations such as back side stripping zinc ion, thereby keep for a long time that the kirsite plate is 7 fungi-proofing, the function of sterilization from kirsite plate 7.

In addition, by between the fin 2a of kirsite plate 7 and heat exchanger 2, installing insulator 10 additional, can prevent that the part in the dew that is immersed in water-collecting tray 5 of kirsite plate 7 and heat exchanger 2 fin 2a from directly contacting, and can effectively keep the potential difference that is formed by the internal emf between kirsite plate 7 and the heat exchanger 2a like this.And can also prevent from directly to contact the damage that causes each parts owing to the fin 2a of kirsite plate 7 and heat exchanger 2.In addition, select for use hydrophilic material, can increase the holdup time of dew on kirsite plate 7, thereby improve antibacterial effect as insulator 10.

In addition, by forming recess 11 at dew passage from water-collecting tray 5 to drain outlet 5a, even zinc ion and the airborne oxygen and carbon dioxide in stripping reacts, forms under the situation of zinc oxide or zinc oxide like this, these zinc oxide or zinc oxide can be trapped in recess, and not diffluence outside indoor set, the draining clogging that is caused by solid matters such as zinc oxide or zinc oxides can not take place in the effect that can keep degerming so yet.

In addition, in the time will getting rid of solid matter such as the zinc oxide that is trapped in recess 11 places and zinc oxide, finger is put in, unload embolism 12, just can easily the solid matter that is trapped on the embolism 12 be removed from air outlet 4.In this case, because the section of embolism 12 is basic identical with the floor space of recess 11, takes off embolism 12 and just whole solid matters almost can be removed effectively.And, because embolism 12 can take off and load onto from the bottom surface of recess 11, therefore saved unnecessary trouble and the times such as dismounting indoor set 20, by hand is stretched into from air outlet 4, just embolism 12 is taken off at the end easily.In addition, be provided with O shape ring 13 in the junction of embolism 12 and recess 11, can improve the sealing of connecting portion like this, prevent that reliably solid matter or dew from leaking.

By carrying out following said test, can have the air-conditioner of bacterium being concentrated and killing function and confirm to estimate this.

At first be that first confirms evaluation test, with 1000 times of NB medium component (peptone 10g, sodium salt 5g, beef broth 3g, pure water 1L) dilutions, and preparation concentration is the modulation water that every L has 30 Gram-negative coliforms.Width according to the 10cm of heat exchanger 2 noted earlier, with this modulation water with the even speed of 1ml/min micropump liquor charging, will be through after a while from the water that drain outlet 5a the discharges 0.2ml that takes a sample at every turn, utilize the dull and stereotyped mixed interpretation of the law of plan in agar medium, to cultivate 24 hours, by the bacterial population in the examination draining, estimate the effect that the kirsite plate is assembled bacterium.This result is compared with the existing situation that kirsite plate 7 metal parts such as grade are not installed on water-collecting tray, and the number of coliform reduces to 1/100 approximately, and clearly, coliform is gathered together, and confirms to be killed.

Be the 2nd below and confirm evaluation test, prepare two wall-hanging air conditioners, one is the described structure of above-mentioned first embodiment, another is the structure that kirsite plate 7 metal parts such as grade are not set, these air-conditioners are arranged on indoor set and off-premises station is in the wet environment of 40 ℃ of temperature, absolute humidity 50%RH, under 27 ℃ design temperature, carry out 3 days continuous cooling operation.Here, the 50ml that from the water that indoor set 20 drainpipes 16 are discharged, samples, the miniature painted barrier film (expression aperture 0.45 μ m) that uses Japanese ミ リ Port ア Co., Ltd. to make comes filtering microorganism.This barrier film on the plain agar culture medium (beef broth 5g, peptone 10g, sodium salt 5g, agar 15g are dissolved in the 1L water, are fixed on the culture medium) of day water pharmaceutical factory manufacturing, was cultivated 16 hours under 37 ℃ temperature.Then the material of turning out is dyeed with the miniature coloration and dyeing liquid that Japanese ミ リ Port ア Co., Ltd. makes, thereby measure bacterial population.This result is compared with the prior art constructions that kirsite plate 7 metal parts such as grade are not installed, and the bacterial population of prior art is about 300/ml, and bacterial population is 3/ml in the present embodiment, and clearly, the bacterial population in the draining has reduced.

The 3rd confirms that evaluation test is to use 3 to comment the same on-wall type air-conditioner of rank test with the 2nd confirmation, is that 40 ℃, absolute humidity are under the wet environment of 50%RH in temperature, and the continuous cooling of carrying out 1000 hours moves.Wherein two as described in the above-mentioned embodiment kirsite plate 7 has been installed on water-collecting tray 5, one in these two is provided with recess 11 on water-collecting tray 5, and another is not provided with recess 11 on water-collecting tray 5.In addition, recess 11 its bottom surfaces that are provided with on water-collecting tray 5 seal with screw screw-in embolism 12.In addition, the 3rd equipment is not provided with kirsite plate 7.In having two equipment of kirsite plate, the weight of kirsite plate 7 is approximately 65g.

At first, have the vegetative effect of inhibition, confirm that with above-mentioned second evaluation test is the same, the number of bacteria in the draining is estimated in order to confirm it.This result is compared with the equipment that kirsite plate 7 is not installed, and its bacterial population of equipment that kirsite plate 7 has been installed becomes 1/100, and clearly, number of bacteria has reduced.Next the minimizing of the weight of the kirsite plate 7 after the validation test, the equipment that is provided with recess 11 is 0.27g, and the equipment that recess 11 is not set is 0.21g, and the two is almost equal.At two equipment with kirsite plate 7, from the front end taking-up draining of drainpipe 16, Visual Confirmation does not form in the equipment of recess 11 on water-collecting tray 5, has the material of white powder shape to be dispersed in the water then.These powder collection are got up, and by X-ray diffraction analysis, this white flour is the mixture of hydroxyl zinc carbonate, zinc oxide, zinc carbonate, zinc hydroxide.Can confirm from this result, owing to form recess 11, can reduce to the oxides of indoor set 20 outside outflow zinc etc.And, use kirsite plate 7 with such recess 11, can also prevent that when keeping sterilization effect drainpipe from stopping up, therefore prolonged the life-span of equipment.In addition, take out by the screw screw-in embolism 12 with recess 11 bottom surfaces, check its surface, the adularescent powder forms.This powder is same zinc compound with material contained in the air-conditioner draining of recess 11 is not set on water-collecting tray 5.

The 4th confirms that evaluation test is to use 3 on-wall type air-conditioners, is that 40 ℃, absolute humidity are under the wet environment of 50%RH in temperature, carries out 1000 hours continuous cooling operation.Wherein two kirsite plate 7 has been installed on water-collecting tray 5; this wherein one as described in the foregoing description; form chemical conversion on two surfaces of kirsite plate 7 and handle thin layer 8, also be not provided with diaphragm 9 simultaneously facing on the basal surface of fin 2a at kirsite plate 7.It is that phosphoric acid is handled film that chemical conversion in this test is handled film 8, and basal surface forms the diaphragm 9 that is made of 100 μ m layers with acrylic resin coating.An other equipment with kirsite plate 7 is not form the equipment that chemical conversion is handled film 8 and diaphragm 9 on kirsite plate 7.Remaining one is the equipment that does not dispose the kirsite plate.

At first, confirm that with the above-mentioned the 2nd evaluation test is the same, the number of bacteria in the draining is estimated in order to confirm that it has the effect of collection bacterium and sterilization.This result is compared with the equipment that kirsite plate 7 is not set, be provided with 2 equipment of kirsite plate 7, its bacterial population has become 1/100, can confirm that bacterial population has reduced.Next confirm to have the weight that the kirsite plate is reduced behind 2 equipment tests of kirsite plate 7; on kirsite plate 7, form the equipment that chemical conversion is handled thin layer 8 and diaphragm 9; compare with the equipment of diaphragm 9 with do not form chemical conversion processing thin layer 8 on kirsite plate 7, the amount that weight reduces is less.Therefore on kirsite plate 7, form chemical conversion like this and handle thin layer 8 and diaphragm 9, when keeping sterilization effect, also have the long life-span.

(embodiment 2)

In the present embodiment, as shown in Figure 3, the kirsite plate 7 that is arranged in heat exchanger 2 fin 2a below has designed 2 osculums 14 that diameter is 5mm on the passage of its dew.Such osculum 14 has been arranged, flow to the dew on the kirsite plate 7, just can pass through osculum 14, fallen on the water-collecting tray 5.By carrying out such flowing, dew just can not overflow from kirsite plate 7, thin on the such kirsite plate of coupling part, the seam portion of kirsite plate 7 and heat exchanger 2 can be soaked in water, therefore can prevent these positions by excessive corrosion, improve the reliability of kirsite plate like this.

More particularly; adopt the foregoing description 1; forming by phosphoric acid chemistry conversion process that chemical conversion handles thin layer 8 and constituted diaphragm 9 and offered diameter two positions by the allyl resin coating is that the kirsite plate 7 of 5mm osculum 14 is arranged on the indoor set 20 of wall-hanging air conditioner, carry out and above-mentioned the 4th confirm the same test of evaluation test.The result is, can not only confirm that number of bacteria obviously reduces, and, handle thin layer 8 with diaphragm 9 but there is not the equipment of osculum 14 to compare with having chemical conversion, have the said structure of osculum 14, the minimizing of its kirsite weight is less.Therefore say that its life-span of equipment with osculum 14 structures is longer.

(embodiment 3)

In the present embodiment, the zinc-iron plate is arranged between water-collecting tray 5 and the heat exchanger 2 as metal parts.The structure of zinc-iron plate is identical with embodiment's 1, implements phosphoric acid chemistry conversion process on the surface of zinc-iron plate.In addition, used zinc-iron plate is bigger than the ionization tendency of the fin 2a of heat exchanger 2.

Adopt above structure, between the fin 2a of heat exchanger 2 and zinc-iron plate, produce the potential difference of 0.4V.Carry out subsequently and the same test of above-mentioned the 2nd confirmation evaluation test, compare with the situation that what is not provided with between water-collecting tray 5 and heat exchanger 2, bacterial population becomes below 1/100, confirms thus also can reach the effect that reduces number of bacteria in the occasion of using the zinc-iron plate as metal parts.

(embodiment 4)

Fig. 4 is the schematic side sectional drawing of the air conditioner room unit of the 4th embodiment according to the present invention, and Fig. 5 is the schematic front elevation of above-mentioned indoor set, and Fig. 6 is the stereogram of critical piece that shows the place, kirsite plate fixed position of above-mentioned indoor set.

Fig. 4, suction grid 1 shown in Figure 5, fin 2a, heat exchanger 2, cross flow fan 3, water-collecting tray 5, water-collecting tray 6, drain outlet 5a, drainpipe 16 etc., because basic identical with the foregoing description 1, and use identical symbol, therefore omit detailed description to them.

And, between the lower surface and water-collecting tray 5 of front side heat exchanger 2, just, dew flow to path the water-collecting tray 5 from the fin 2a of heat exchanger 2 on, be provided with kirsite plate 7, in addition as metal parts, on the upper surface of kirsite plate 7, be provided with the thick insulator 10 that forms by nonwoven layer of 1mm, thereby it can make the fin 2a of zine plate 7 and heat exchanger 2 can not keep apart to make between them to short circuit to insulate, also have the hydrophily that can keep moisture simultaneously.

In addition, have on each fin 2a as shown in Figure 6 for improving the longitudinal slot 2b that heat exchange efficiency is provided with, this structure helps keeping dew.In addition, kirsite plate 7 is arranged to cover from the drip whole zone of passage of dew of heat exchanger 2, and its length is identical with the bottom of heat exchanger 2 fin 2a with width.

As Fig. 5, shown in Figure 6, the end of kirsite plate 7 left and right sides is crooked upward, is fixed on the heat exchanger 2 by the connecting portion 17a that is arranged on the upper end.Like this, utilize the connecting portion 17a kirsite plate 7 at two ends physically to be located and be supported on the heat exchanger 2, can also make between them simultaneously to be electrically connected.In addition, syndeton as this embodiment, on the connecting portion 17a at the two ends of kirsite plate 7 bending machining, form and be used for inserting the patchhole 17b that the hold-down screw (not shown) is used, position to patchhole 17b on the end plate at heat exchanger 2 two ends forms screw hole 2c, the screw that is used for fixing passes and is screwed into the screw hole 2c (seeing the arrow of Fig. 6) of heat exchanger 2 from the screw insertion hole 17b of kirsite plate 7, thereby the two ends of kirsite plate 7 have been fixed on the heat exchanger 2.And at this moment,, make to form between them to be electrically connected because the connecting portion 17a at kirsite plate 7 two ends contacts with heat exchanger 2.In addition, the connecting portion 17a at kirsite plate 7 two ends and the link position of heat exchanger 2 make the tie point of connecting portion can not cause loose contact because of corrosion on the water surface of the dew that is stranded in water-collecting tray 5.

If employing said structure, kirsite plate 7 physically is supported on the heat exchanger 2 by the joint portion 17a at its two ends, this just makes kirsite plate 7 by heat exchanger 2 location and supported securely, like this, even external force effects such as kirsite plate 7 is stretched, can easily not come off yet, therefore can prevent the draining splash phenomena that causes because of dropping of kirsite plate 7 from the end of heat exchanger 2.In addition, use fixing screw, can at an easy rate kirsite plate 7 be dismantled and install, the maintainability when therefore having improved heat exchanger 2 cleanings.

Next, by following test, this air-conditioner with sterilization function is confirmed to estimate.

Confirm in the evaluation test at the 5th, prepare 3 wall indoor units 20, described like that according to present embodiment on an indoor set 20, kirsite plate 7 and heat exchanger 2 are being provided with coupling together, kirsite plate 7 be not provided with heat exchanger 2 with being connected on another indoor set, and remaining one is not provided with kirsite plate 7.It is that 40 ℃, humidity are in the control room of 50%RH that these indoor machine of air-conditioner 20 and off-premises station are arranged on temperature, under 27 ℃ design temperature, carry out 7 days continuous cooling operation, the hydromining sample 50ml that will discharge from drain outlet 5a, the miniature painted barrier film made from Japanese ミ リ Port ア Co., Ltd. (representing aperture 0.45um) comes the microorganism in the filtered sample water.The plain agar culture medium of this barrier film in day water pharmaceutical factory manufacturing (is dissolved in beef broth 5g, peptone 10g, sodium salt 5g, agar 15g in the 1L water, be fixed on the culture medium) on, under 37 ℃ temperature, cultivated 16 hours, the miniature coloration and dyeing liquid made from Japanese ミ リ Port ア Co., Ltd. dyes to above-mentioned agar medium then, thereby measures bacterial population.The 5th result who confirms evaluation test is presented in the table 1

(table 1)

Test method	Bacterial population in the draining
		Embodiment 4	3
The kirsite plate be not provided with heat exchanger with not being connected	30
		The kirsite plate is not set	300

On the dew passage, do not install in the prior-art devices of kirsite plate 7, bacterial population in the draining is about about 300, in contrast to this, in the present embodiment in the device that kirsite plate 7 and heat exchanger 2 are being provided with coupling together, bacterial population is 3, the kirsite plate not with situation that heat exchanger 2 is connected under, bacterial population is 30, can find out obviously that the bacterial population in the draining has reduced.And can confirm that do not compare with the situation that heat exchanger 2 is connected with kirsite plate 7, the two situation about linking to each other has the vegetative effect of better inhibition.

(embodiment 5)

Fig. 7 is the stereogram of the kirsite plate that is provided with below the heat exchanger of the embodiment of the invention 5 described air conditioner room units.As shown in Figure 7, on the runner of the dew of this kirsite plate 7,5 through holes 18 that diameter is 5mm have been offered.Such through hole 18 has been arranged, and dew just can flow on the water-collecting tray 5 through through hole 18 from kirsite plate 7.By such flowing, dew can not be trapped on the kirsite plate 7 for a long time, therefore can prevent to concentrate corrosion phenomenon near kirsite plate 7 end faces and with the tiny area place appearance in those places, heat exchanger 2 coupling part.

The 6th confirm evaluation test be to use 3 with the 5th the same on-wall type air-conditioner of confirmation evaluation test, on an indoor machine of air-conditioner, described as present embodiment, setting has the kirsite plate 7 of through hole 18, the kirsite plate 7 (just adopting the structure of embodiment 4) that does not have through hole 18 is set on another indoor machine of air-conditioner, on remaining platform, kirsite plate 7 is not set.Then, it is that 40 ℃, humidity are in the control room of 50%RH that these indoor machine of air-conditioner and off-premises station are arranged on temperature, under 27 ℃ design temperature, carry out 1000 hours continuous cooling operation, confirm that as the 5th evaluation test measures the bacterial population in the draining.The 6th result who confirms evaluation test is presented in the table 2

(table 2)

Test method	Bacterial population ratio in the draining
		Embodiment 5	????1/100
Embodiment 4	????1/100
		The kirsite plate is not set	????1

Compare with the existing equipment that kirsite plate 7 is not set in the dew passage, bacterial population in the draining becomes 1/100 in present embodiment is the structure of embodiment 5, as seen the bacterial population in the draining obviously reduces, in addition, after the 6th confirmation evaluation test finishes, subsequently to having through hole 18 and not having the weight separately of the kirsite plate 7 of through hole 18 to measure.The kirsite plate 7 with through hole 18 of present embodiment and the kirsite plate that does not have through hole 18 of the foregoing description 4 are compared, and clearly, it is less that weight reduces.Learn from this result,, when keeping it to suppress vegetative effect, can also make kirsite plate 7 have the long life-span by on the dew passage of kirsite plate 7, through hole 18 being set.

In addition, the number of through hole 18 is not limited to 5, so long as dew can be contacted well with kirsite plate 7, the structure that can not be trapped in for a long time on it gets final product again.

(embodiment 6)

Fig. 8 is presented on the embodiment of the invention 6 described air conditioner room units the fixedly stereogram of the critical piece at kirsite Board position place.

As shown in Figure 8, in this embodiment, the syndeton of kirsite plate 7 and heat exchanger 2 is to make the bending two ends of kirsite plate 7 form claw 19.Each claw 19 by with patchhole 20 chimeric being connected on the heat exchanger that on heat exchanger 2 end panel 2d, form.Such structure, decapacitation makes outside the both ends of kirsite plate 7 physically, firmly are connected on the heat exchanger 2, the two ends and the heat exchanger 2 of kirsite plate 7 are conducted, make when dew is trapped on the water-collecting tray 5, can produce the electromotive force of 0.4V between the fin 2a of heat exchanger 2 and the kirsite plate 7.

If use this formation, the same with last embodiment, can not only keep good sterilizing function, also owing to do not need fixed part such as screw in addition, number of components is reduced, reduce the man-hour of attended operation, and because kirsite plate 7 can be mounted and dismantle the maintainability when having improved the heat exchanger cleaning simply.

(embodiment 7)

In this embodiment 7, the syndeton of kirsite plate 7 and heat exchanger 2 is that the two ends of kirsite plate 7 bendings are connected with riveted joint with the 2d of end plate portion of heat exchanger 2.This structure can make the both ends of kirsite plate 7 be connected on the heat exchanger 2 physically, securely on the one hand, the two ends of kirsite plate 7 are electrically connected with heat exchanger 2, when making dew be trapped in the water-collecting tray 5, produce the electromotive force of about 0.4V between the fin 2a of heat exchanger 2 and the kirsite plate 7.

If adopt such structure, same with last embodiment, can keep good sterilizing function, and, number of components be reduced owing to do not use fixed part such as screw in addition, help producing in batches, can make with lower price.

(embodiment 8)

In this embodiment 8, the syndeton of kirsite plate 7 and heat exchanger 2 is with the bending two ends processing of kirsite plate 7, and these both ends are connected on the end plate 2d of heat exchanger 2 by spot welding.This structure can make the both ends of kirsite plate 7 be connected on the heat exchanger 2 physically, securely on the one hand, the two ends of kirsite plate 7 are electrically connected with heat exchanger 2, when dew is trapped in the water-collecting tray 5, make the electromotive force that produces about 0.4V between the fin 2a of heat exchanger 2 and the kirsite plate 7.

If adopt such structure, same with last embodiment, can not only keep good sterilizing function, also be connected with heat exchanger 2 usefulness spot welding owing to kirsite plate 7, even therefore kirsite plate 7 external force effect such as stretched, also be not easy to make its end plate 2d to come off, can prevent like this, number of components is reduced because of the draining that dropping of kirsite plate the produces accident of splashing from heat exchanger 2.

In addition, in the foregoing description 4-8, the connection between the end plate 2d of kirsite plate 7 and heat exchanger 2 is to adopt the identical mode in two ends to connect, and also can take two ends connected mode inequality.

(embodiment 9)

Fig. 9 is the heat exchanger of the embodiment of the invention 9 described air conditioner room units and at the stereogram of the corrugated plate shape kirsite plate of heat exchanger arranged beneath.

As shown in Figure 9, in this indoor machine of air-conditioner, on the passage of dew on the kirsite plate 7, that drip from heat exchanger 2, form the concaveconvex shape portion 17 that is recess and protuberance extension with fin 2a front and back bearing of trend perpendicular.

If take such structure, because the passage of dew on kirsite plate 7, that drip from heat exchanger 2 forms concaveconvex shape portion, kirsite plate 7 place relative with fin 2a bottom compared with the flat situation shown in Fig. 6 waits, the surface area of kirsite plate has increased, therefore can suppress its activity by compiling bacterium more, and bacterium is killed.And, therefore can obtain the vegetative effect of higher inhibition owing to the zinc ion itself from 7 strippings of kirsite plate also has antibacterial action.

The 7th confirms that evaluation test is to use 3 to comment rank to test same on-wall type air-conditioner with the 5th confirmation, on an indoor machine of air-conditioner, described as present embodiment, setting has the kirsite plate 7 of concaveconvex shape portion 21, the same with embodiment 4 on another platform, setting does not have the kirsite plate 7 of concaveconvex shape portion, is that kirsite plate 7 is not set on remaining platform.Then, it is that 40 ℃, humidity are in the control room of 50%RH that these indoor machine of air-conditioner and off-premises station are arranged on temperature, under 27 ℃ design temperature, carry out 1000 hours continuous cooling operation, confirm that as the 5th evaluation test measures the bacterial population in the draining.The 7th result who confirms evaluation test is presented in the table 3.

(table 3)

Test method	Bacterial population ratio in the draining
		Embodiment 9	????1/150
Embodiment 4	????1/100
		The kirsite plate is not set	????1

Compare with the existing equipment that kirsite plate 7 is not set in the dew passage, bacterial population in the draining equipment of the kirsite plate 7 with concaveconvex shape portion 21 (even with) in the equipment of present embodiment becomes 1/150, (using the equipment of tabular kirsite plate 7 basically) in the structure of the foregoing description 4 becomes 1/100, and the bacterial population in the visible draining obviously reduces.In addition, can also confirm that the equipment of present embodiment has the vegetative effect of higher inhibition than the equipment of the foregoing description 4.

In addition, in embodiment 9, describe be recess and the protuberance of concaveconvex shape portion 21 be with fin 2a before and after the vertical substantially side of bearing of trend upwardly extending, yet the recess of concaveconvex shape portion 21 and protuberance can also be inequality with the direction of bearing of trend perpendicular before and after the fin 2a.Take this structure, compare, also, therefore can suppress its activity, and bacterium is killed by compiling bacterium more because the surface area of kirsite plate 7 has increased with flat situation.

(embodiment 10)

Figure 10 (a) is the heat exchanger of the embodiment of the invention 10 described air conditioner room units and at the stereogram of the kirsite plate of the corrugated plate shape of heat exchanger arranged beneath, and Figure 10 (b) is the front elevation of the schematic critical piece of heat exchanger bottom and kirsite plate.

Shown in Figure 10 (a) and (b), in this indoor machine of air-conditioner, on the passage of the dew that drips on the kirsite plate 7, from heat exchanger 2, form with fin 2a before and after bearing of trend substantially parallel be concaveconvex shape portion 22 that recess and protuberance extend, that have uniform distances with spacing of fin 21FPI (24 pieces of fin 2a are arranged on 1 inch the distance).Then, the protuberance 22a of concaveconvex shape portion 22 is arranged between the fin 2a.In addition, do not illustrate among the figure, the two ends of kirsite plate 7 can be passed through screw, welding, riveted joint etc. and be connected with heat exchanger 2.

Like this, owing to form the concaveconvex shape portion 22 substantially parallel with the bearing of trend of fin 2a, make the distance of the bottom of fin 2a and kirsite plate 7 close, simultaneously, again since fin 2a equate substantially with interval between kirsite plate 7 is from the recess to the protuberance, therefore thereby this is shortened at interval,, also can keep the bacterium that makes in the dew and carry out the required electric-field intensity of electrophoresis to kirsite plate 7 sides of electronegative potential even the standard electrode potential difference between fin 2a and the kirsite plate 7 is very little.Therefore can make bacterium focus on kirsite plate 7 sides effectively, thereby suppress the activity of bacterium, and killing bacteria.

The 8th confirm evaluation test be to use 3 with the 5th the same on-wall type air-conditioner of confirmation evaluation test, on an indoor machine of air-conditioner, described as present embodiment, kirsite plate 7 with concaveconvex shape portion 22 is set on the position that its fin 2a faces, on another platform, the same with embodiment 4, flat kirsite plate 7 is set on the position that fin 2a faces, on remaining platform, kirsite plate 7 is not set.Then, it is that 40 ℃, humidity are in the control room of 50%RH that these indoor machine of air-conditioner and off-premises station are arranged on temperature, under 27 ℃ design temperature, carry out 1000 hours continuous cooling operation, confirm that as the 5th evaluation test measures the bacterial population in the draining.The 8th result who confirms evaluation test is presented in the table 4.

(table 4)

Test method	Bacterial population ratio in the draining
		Embodiment 10	??1/200
Embodiment 4	??1/100
		The kirsite plate is not set	??1

Compare with the existing equipment that kirsite plate 7 is not set in the dew passage, bacterial population in the draining becomes 1/200 in the equipment (equipment that has the concaveconvex shape portion 22 substantially parallel with fin 2a bearing of trend on the kirsite plate 7) of present embodiment 10, become 1/100 in the structure (use is essentially the equipment of tabular kirsite plate 7) of the foregoing description 4, the bacterial population in the visible draining obviously reduces.In addition, can also confirm that the equipment of present embodiment 10 has the vegetative effect of better inhibition than the equipment of the foregoing description 4 and embodiment 9.

In addition, having narrated in the above-described embodiments and having flow to the metal parts that the path of water-collecting tray 5 is provided with at dew from the fin 2a of heat exchanger 2 is the situation of kirsite plate 7 and zinc-iron plate, yet the invention is not restricted to this, can use any metal bigger than the material ionization tendency of fin 2a.Except zinc, also can use magnesium, titanium or its alloy.Zine plate, galvanized steel plain sheet, kirsite plate are because more cheap and the most frequently used.In addition, when using the kirsite plate, should use uncorruptible kirsite component.If be easy to be corroded, when using for a long time, just no longer stripping of zinc so just can not be reentried and be suppressed vegetative effect.For making it be difficult for stripping, can use the method for interpolation less than 1% titanium.

In addition, narration is to select for use nonwoven layer as the anti-short circuit insulator (having the function that they are separated) 10 between the fin 2a of the metal parts of kirsite plate 7 grades and heat exchanger 2 in the above-described embodiments, yet the invention is not restricted to this.At the insulator 10 that is provided with on the metal parts of kirsite plate 7 grades can be to make to prevent between the fin 2a of metal parts and heat exchanger 2 to contact and any material of possess hydrophilic property.For example can select cotton or polyester non-woven fabric, polyurethane, nylon, polyvinyl alcohol etc. for use.Because insulator 8 is a hydroaropic substance, dew can be detained on kirsite plate 7 metal parts such as grade for a long time, therefore can compile more bacterium, suppress its activity, and with its elimination.

In addition, in the above-described embodiments, what narrate is the situation that kirsite plate 7 metal parts such as grade that are connected with heat exchanger 2 are set on the water-collecting tray 5 of on-wall type indoor machine of air-conditioner 20, yet the invention is not restricted to the on-wall type air-conditioner, on the water-collecting tray of indoor machine of air-conditioner such as courtyard type or furred ceiling type, also metal parts of the present invention can be set.In this case, preferably make metallic plate be immersed in dew and be detained the such method for arranging of part, make its performance bacteria-eliminating efficacy thus.

Claims (18)

1. air-conditioner with indoor set comprises: the heat exchanger with metal fin on the path from the inlet scoop to air outlet at least; Will be through the indoor indoor blowing fan that blows out of the wind direction after the above-mentioned heat exchanger temperature adjustment; The water-collecting tray of the dew that reception is dripped from above-mentioned heat exchanger;

It is characterized in that: be provided with by the metal metal parts bigger from the path that above-mentioned heat exchanger fin flows to water-collecting tray than above-mentioned fin ionization tendency at dew, above-mentioned metal parts and above-mentioned heat exchanger are electrically connected, chemical conversion are set at least one surface of above-mentioned metal parts handle thin layer.

2. air-conditioner as claimed in claim 1 is characterized in that: chemical conversion is handled thin layer and is comprised phosphoric acid processing film.

3. air-conditioner as claimed in claim 1 is characterized in that: on a surface of metal parts diaphragm is set.

4. as the arbitrary described air-conditioner of claim 1-3, it is characterized in that: osculum is set on metal parts.

5. as the arbitrary described air-conditioner of claim 1-3, it is characterized in that: metal parts is zine plate, galvanized steel plain sheet or kirsite plate.

6. air-conditioner with indoor set comprises: the heat exchanger with metal fin on the path from the inlet scoop to air outlet at least; Will be through the indoor indoor blowing fan that blows out of the wind direction after the above-mentioned heat exchanger temperature adjustment; The water-collecting tray of the dew that reception is dripped from above-mentioned heat exchanger;

It is characterized in that: be provided with by the metal metal parts bigger from the path that above-mentioned heat exchanger fin flows to water-collecting tray than above-mentioned fin ionization tendency at dew, above-mentioned metal parts and above-mentioned heat exchanger are electrically connected, on the path of the dew from the water-collecting tray to the drain outlet, recess are set.

7. air-conditioner as claimed in claim 6 is characterized in that: have the embolism that can dismantle on the recess.

8. air-conditioner as claimed in claim 7 is characterized in that: the basal area of the embolism that can dismantle is basic identical with the base area of recess.

9. as claim 7 or 8 described air-conditioners, it is characterized in that: the embolism that can dismantle is from the bottom surface dismounting of recess.

10. as the arbitrary described air-conditioner of claim 7-8, it is characterized in that: the embolism that can pull down is provided with O type ring in the junction with recess.

11. the air-conditioner with indoor set comprises: the heat exchanger on path at least with metal fin from the inlet scoop to air outlet; Will be through the indoor indoor blowing fan that blows out of the wind direction after the above-mentioned heat exchanger temperature adjustment; The water-collecting tray of the dew that reception is dripped from above-mentioned heat exchanger;

It is characterized in that: be provided with by the metal metal parts bigger from the path that above-mentioned heat exchanger fin flows to water-collecting tray than above-mentioned fin ionization tendency at dew, be connected on the above-mentioned heat exchanger by the both ends that make above-mentioned metal parts, thereby above-mentioned metal parts and above-mentioned heat exchanger are electrically connected.

12. the air-conditioner with indoor set comprises: the heat exchanger on path at least with metal fin from the inlet scoop to air outlet; Will be through the indoor indoor blowing fan that blows out of the wind direction after the above-mentioned heat exchanger temperature adjustment; The water-collecting tray of the dew that reception is dripped from above-mentioned heat exchanger;

It is characterized in that: be provided with by the metal metal parts bigger from the path that above-mentioned heat exchanger fin flows to water-collecting tray than above-mentioned fin ionization tendency at dew, at least one through hole is set on this metal parts, simultaneously, above-mentioned metal parts and above-mentioned heat exchanger are electrically connected.

13. as claim 11 or 12 described air-conditioners, it is characterized in that: metal parts its with at least one connecting portion of heat exchanger on form the hole that is connected with screw, screw is passed this screw connecting hole, and be screwed in the heat exchanger, thereby metal parts is fixedly attached on the heat exchanger.

14., it is characterized in that as claim 11 or 12 described air-conditioners: metal parts its with at least one connecting portion of heat exchanger on form the claw that is connected usefulness, by inserting in the hole of this claw being entrenched in form on the heat exchanger, thereby make the two connection.

15. as claim 11 or 12 described air-conditioners, it is characterized in that: metal parts is connected on the heat exchanger by riveted joint at least one connecting portion of itself and heat exchanger.

16. as claim 11 or 12 described air-conditioners, it is characterized in that: metal parts is connected on the heat exchanger by spot welding at least one connecting portion of itself and heat exchanger.

17. as claim 11 or 12 described air-conditioners, it is characterized in that: the channel part at the dew that drips from heat exchanger of metal parts forms concaveconvex shape portion.

18. air-conditioner as claimed in claim 17 is characterized in that: above-mentioned recess and protuberance extend on the direction substantially parallel with bearing of trend before and after the fin.

Images