WO1999059832A1

WO1999059832A1 - Vehicle air conditioning system

Info

Publication number: WO1999059832A1
Application number: PCT/JP1999/002508
Authority: WO
Inventors: Naoto Hayashi; Shinichi Hara
Original assignee: Zexel Corporation
Priority date: 1998-05-15
Filing date: 1999-05-14
Publication date: 1999-11-25

Abstract

A vehicle air conditioning system, wherein, since a resin case (6) housing an evaporator (3) therein is formed of a synthetic resin material added with an inorganic antibacterial agent, a sustained antibacterial effect can be ensured without any possibility of an organic antibacterial agent diffusing into vehicle rooms entrained on an air stream and without any need of preparing an antibacterial agent by mixing a variety of medicines. In addition, an antibacterial member carrying an antibacterial agent-containing water-soluble substance (115) is disposed on a condensed-water flowing-down passage from the evaporator (3) so as to sterilize a drain pan (108) and the like by an antibacterial agent, efficiently restrict the propagation of bacteria and remove the causes of malodor. Further, the antibacterial agent is mixed into the condensed water little by little as the water-soluble substance (115) dissolves to sustain an antibacterial effect over a long time.

Description

Description Vehicle air conditioner Technical field

The present invention relates to an air conditioner for a vehicle, and more particularly to an air conditioner for a vehicle that can suppress the growth of microorganisms and prevent the generation of offensive odor. Background art

Conventional technologies include at least one of surfactants, ultraviolet absorbers and antioxidants (0.1 to 1.0% by weight based on the total weight) and an organic antibacterial agent (total). There is an air conditioner equipped with a blower fan formed of an amorphous synthetic resin material containing 0.5 to 2.0% by weight of the weight (see Japanese Patent Application Laid-Open No. H8-145439). No. 2).

According to this document, according to this air conditioner, the antibacterial agent exudes to the surface of the blower fan as the drug exudes to the surface of the blower fan over a long period of use. Is described.

However, as described above, the antibacterial effect is exhibited by the organic antibacterial agent exuding to the surface, but when the exuded agent volatilizes, the organic antibacterial agent diffuses into the passenger compartment in the airflow. However, if the occupant continues to inhale the antimicrobial agent for a long period of time, it may cause an undesirable situation.

Also, there are many types of microorganisms that cause odor, and one organic antibacterial agent is effective only for some types of microorganisms. In order to produce high antibacterial effects against many types of microorganisms, a mixture of various drugs with different antibacterial effects had to be used as antibacterial agents.

Furthermore, microorganisms can easily acquire resistance to organic antibacterial agents (microbial resistance to antibacterial agents), and the antibacterial effect may not be sustained. The antibacterial effect is exerted only when the organic antibacterial agent seeps onto the surface, but since the amount of the organic antibacterial agent contained in the resin decreases with time, the organic antibacterial agent seeps onto the surface. If it is no longer used or the concentration is low, the antibacterial effect is no longer exhibited. Therefore, a long-term antibacterial effect cannot be expected from a conventional air conditioner.

In addition, condensed water that had flowed down from the evaporator was attached to the inner wall of the resin case that housed the evaporator, so that microorganisms could proliferate there and prevent the generation of offensive odors.

The present invention has been made in view of such circumstances, and its purpose is to provide an antibacterial effect to a variety of microorganisms without causing an unfavorable situation for an occupant, to maintain the antibacterial effect for a long period of time, Moreover, it is an object of the present invention to provide a vehicle air conditioner capable of suppressing the growth of microorganisms in a resin case containing an evaporator. Disclosure of the invention

In order to solve the above-mentioned object, a vehicle air conditioner according to a first aspect of the present invention is a vehicle air conditioner comprising: an evaporator housing; and a resin case accommodating the evaporator housing. Molded with synthetic resin material with added antibacterial agent It is characterized by

According to this vehicle air conditioner, since the organic antibacterial agent does not diffuse into the vehicle interior due to the airflow, a situation unfavorable for occupants does not occur.

In addition, since inorganic antibacterial agents produce high antibacterial effects against many types of microorganisms, there is no need to mix many types of chemicals to produce antibacterial agents as in the conventional example.

In addition, microorganisms are unlikely to acquire resistance to inorganic antibacterial agents, so that the antibacterial effect is maintained. In addition, since the amount of the inorganic antibacterial agent does not decrease with time, the antibacterial effect is maintained for a long time.

Also, the condensed water that has flowed down from the evaporator is attached to the inner wall surface of the resin case that houses the evaporator, so that microorganisms can easily propagate.However, the resin case is molded from a synthetic resin material containing an inorganic antibacterial agent. Therefore, the growth of microorganisms can be suppressed.

A vehicle air conditioner according to a second aspect of the present invention includes an evaporator, a resin case accommodating the evaporator, and an outer peripheral surface of the evaporator and an inner peripheral surface of the resin case. An air conditioner for a vehicle comprising a lining and a lining, wherein the lining is molded by adding an inorganic antibacterial agent.

According to this vehicle air conditioner, since an inorganic antibacterial agent is added to the lining (for example, a lining made of foamed resin for heat insulation), the propagation of microorganisms can be suppressed more reliably.

In the vehicle air conditioner according to the first or second aspect of the present invention, it is preferable that the inorganic antibacterial agent contains silver ions.

According to this preferred embodiment, the silver ion in the inorganic antibacterial agent W

The function suppresses the growth of microorganisms in the resin case.

Preferably, a soluble glass is used as the silver ion carrier.

As described above, soluble glass is used as a carrier for silver ions, and this soluble glass is easily dissolved in water adhering to the inner wall surface of the resin case. The antibacterial function of the ions can be fully exerted, and the propagation of microorganisms can be more reliably prevented.

It is preferable that the content of the melting glass is 0.5% by weight or more.

According to this preferred embodiment, a remarkable antibacterial effect is obtained, and the propagation of microorganisms can be more reliably prevented.

A vehicle air conditioner according to a third aspect of the present invention is characterized in that an antibacterial member holding a water-soluble substance containing an antibacterial agent is disposed on a flow path of dew water of an evaporator.

According to this vehicle air conditioner, when the dew water of the evaporator flows down, the dew water contacts the water-soluble substance containing the antibacterial agent, so that the water-soluble substance is dissolved and the antibacterial agent is condensed into the dew water Mixed. Therefore, the entire water storage area downstream of the dew condensation water flow path is sterilized by the antibacterial agent, and the growth of bacteria is efficiently suppressed. Since the antibacterial agent is contained in the water-soluble substance, the antibacterial agent is mixed into the dew water little by little as the water-soluble substance dissolves, so that the antibacterial action is exerted continuously for a long period of time. In addition, since a water-soluble substance containing an antibacterial agent is held on the antibacterial member, the means for exerting the antibacterial function can be handled as a single solid component having a simple structure. Optional around It can be easily arranged in the position of, and cost increase can be suppressed.

In a vehicle air conditioner according to a fourth aspect of the present invention, a comb-shaped antibacterial member is mounted on a fin of an evaporator, and the comb-shaped antibacterial member inserted into a gap between the fins has a tip end of a tooth. A water-soluble substance including an antibacterial agent is retained.

According to this vehicle air conditioner, since the antibacterial member is formed in a comb shape, the teeth of the comb-shaped antibacterial member are inserted into the gaps between the fins of the evaporator, so that the antibacterial agent is formed in the evaporator. Mounting members can be easily mounted. In addition, since the water-soluble substance containing the antibacterial agent is held at the tip end of the tooth of the antibacterial member, dew water flowing down through the gap between the fins is condensed with the water-soluble substance at the tooth tip. When touched, the water-soluble substance dissolves and the antibacterial agent mixes with the condensed water flowing down. Therefore, the water-soluble substance can be arranged in a state where it is easily dissolved in the dew water. Also, regarding the manufacture of antibacterial members, the comb teeth are simply immersed in a liquid in which a water-soluble substance is dissolved, then lifted up and dried, so that the manufacture is simple.

A vehicle air conditioner according to a fifth aspect of the present invention is characterized in that a saucer-shaped antibacterial member for holding a water-soluble substance containing an antibacterial agent is arranged at a position where the dew condensation water drops on the evaporator. .

According to the vehicle air conditioner, since the antibacterial member is a saucer-shaped antibacterial member, it can receive dew condensation water without leakage, and can efficiently mix the antibacterial agent into the dew condensation water flowing downstream.

A vehicle air conditioner according to a sixth aspect of the present invention includes an evaporator, a resin case accommodating the evaporator, and a laser disposed between an outer peripheral surface of the evaporator and an inner peripheral surface of the resin case. An air conditioner for a vehicle having an inner lining, wherein the lining is formed of a foamed material obtained by mixing an antibacterial agent into a main material and foaming the lining.

According to this vehicle air conditioner, since the antibacterial agent is mixed in the lining itself that easily contains water, it is possible to prevent bacteria from growing on the lining. Even if the main material is mixed with an antimicrobial agent and foamed, the basic physical properties are almost the same, so it can be installed around the evaporator as in the case of the conventional lining. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a conceptual diagram showing a vehicle air conditioner according to a first embodiment of the present invention.

FIG. 2 is a conceptual diagram showing the installation position of the vehicle air conditioner. FIG. 3 is a graph showing the evaluation results of the antibacterial effect.

FIG. 4 is an explanatory view of a second embodiment of the present invention. FIG. 4 (a) is a conceptual diagram showing an installation position of a vehicle air conditioner, and FIG. 4 (b) is a conceptual diagram showing a vehicle air conditioner. .

FIG. 5 is a perspective view showing an evaporator and an antibacterial member. FIG. 6 is an explanatory view of the antibacterial member of FIG. 5, wherein FIG. 6 (a) is a plan view and FIG. 6 (b) is a partially enlarged view of FIG. 5 (a).

Fig. 7 is a schematic explanatory view of how to make the antibacterial member of Fig. 5; Fig. 7 (a) shows a state in which a comb-shaped antibacterial member body is immersed in a solution of water glass; () Shows the completed antibacterial member.

FIG. 8 shows other shapes of the teeth of the comb-shaped antibacterial member of the second embodiment. (A) is a plan view, and (b) is a plan view.

FIG. 9 is a perspective view showing an evaporator and an antibacterial member of the vehicle air conditioner according to the third embodiment of the present invention.

FIG. 10 is an explanatory view of a tray-shaped antibacterial member. FIG. 10 (a) is a plan view, FIG. 10 (b) is a side view, and FIG. 10 (c) is an Xc of FIG. -It is a sectional view taken along the arrow Xc.

FIG. 11 is an explanatory view of a fourth embodiment of the present invention. FIG. 11 (a) is a conceptual diagram showing an installation position of a vehicle air conditioner, and FIG. 11 (b) is a conceptual diagram showing a vehicle air conditioner. is there.

FIG. 12 is a perspective view showing an evaporator and an antibacterial member.

Fig. 13 is an explanatory view of the antibacterial member of Fig. 12; Fig. 13 (a) is a plan view, and Fig. 13 (b) is a partially enlarged view of Fig. 12 (a). BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a conceptual diagram showing a vehicle air conditioner according to a first embodiment of the present invention, and FIG. 2 is a conceptual diagram showing an installation position of the vehicle air conditioner.

As shown in FIG. 2, the vehicle air conditioner 1 is disposed behind the engine room 20 (strictly, in front of the passenger compartment 21).

As shown in Fig. 1, inside and outside air switching door 7, blower fan 2, filter 8, and evaporator 3 are accommodated in resin case 6 of vehicle air conditioner 1 in order from upstream to downstream. .

には The inside air inlet 6a and the outside air inlet are located upstream of the resin case 6. 6b is provided.

The inside / outside air switching door 7 opens and closes the inside air inlet 6a and the outside air inlet 6b.

The blower fan 2 is a fan for introducing air into the resin case 6 from the inside air inlet 6a and the outside air inlet 6b.

Filter 8 removes dust and the like in the air introduced by blower fan 2.

The evaporator 3 is a heat exchanger for cooling the air that has passed through the filter 8. The evaporator 3 is fixed to the inner wall surface of the resin case 6 through linings 9a, 9b, 9c made of foamed resin for heat insulation. Insulation foam resin linings 9a and 9b are attached to the outer wall of evaporator 3 and insulation foam resin lining 9c is attached to the bottom of resin case 6, respectively.

The resin case 6 is made by kneading an inorganic antibacterial agent into a synthetic resin material and injection molding. Examples of the synthetic resin material include PP (polypropylene), ABS (acrylitol butadiene styrene resin), and polystyrene. As the inorganic antibacterial agent, for example, powdery soluble glass of several m particles is used. The melting glass is composed of silver ion as an active ingredient and a silicate holding the silver ion. The amount of the inorganic antibacterial agent added to the synthetic resin material is, for example, 0.5% by weight or more. More preferably, it is 0.75 to 1.0% by weight.

An inorganic antibacterial agent is also added to the heat-insulating foam lining 9 as in the resin case 6.

Next, the operation of the vehicle air conditioner 1 will be described. When the blower fan 2 operates, outside air is introduced into the resin case 6 from the outside air inlet 6b.

The air introduced into resin case 6 passes through filter 8 and then passes through evaporator 3.

When the air passes through the filter 8, dust and the like in the air are removed. When the air passes through the evaporator, heat is exchanged between the air and the refrigerant in the evaporator, and the air is cooled. As a result, cool air is blown into the passenger compartment 21 from an outlet (not shown).

Condensed water adheres to the outer wall surface of the evaporator 3, and the condensed water flows down to the inner wall surface of the resin case 6 and is discharged from the drainage port 6 c located below the evaporator 3.

As described above, the condensed water adheres to the inner wall surface of the resin case 6, but the soluble glass added to the synthetic resin material dissolves in the condensed water, and silver ions that exude to the surface cause odor and the like. Propagation of various microorganisms is suppressed. Therefore, clean air with no smell is sent from the outlet of the resin case 6 into the passenger compartment 21.

FIG. 3 is a graph showing the evaluation results of the antibacterial effect.

Although the number of bacteria when the addition amount is 0% by weight of the soluble glass (inorganic antibacterial agent) 1 0 ⁸ Z m 1, row rather when increasing the amount gradually, the amount is 0.5 wt% exceeding the number of bacteria is rapidly decreased, the amount is 0.7 5-1. the number of bacteria when 0 wt% is 1 0 ¹ Z m 1. The evaluation results of the antibacterial effect are based on the film adhesion method. The antibacterial effect evaluation results in Fig. 3 are under severe conditions (results measured using bacteria that are strong against comparative antibacterial agents). I W5 Therefore, a remarkable antibacterial effect can be expected with a small amount of addition to bacteria that are relatively weak to antibacterial agents such as Escherichia coli. An antimicrobial effect can be expected with a small addition amount.

According to the vehicle air conditioner of this embodiment, the resin case 6 is made by injection molding with the addition of an inorganic antibacterial agent to a synthetic resin material. It does not spread into Room 21 and does not lead to unfavorable conditions for the occupants.

In addition, microorganisms are unlikely to acquire resistance to inorganic antibacterial agents, so that the antibacterial effect is maintained. In addition, since the amount of the inorganic antibacterial agent does not decrease over time, the fungus effect is maintained for a long period of time.

Also, the condensed water that has flowed down from the evaporator 3 adheres to the inner wall surface of the resin case 6 that houses the evaporator 3, so that microorganisms can easily propagate, but the resin case 6 is made by adding an inorganic antibacterial agent. Molded with resin material, the growth of microorganisms (including pathogenic microorganisms) can be suppressed.

Furthermore, since the inorganic antibacterial agent is added to the foamed resin lining 9 for heat insulation similarly to the resin case 6, it is possible to more reliably prevent the generation of offensive odor due to the propagation of microorganisms.

Further, since the amount of the soluble glass containing silver ions is 0.5% by weight or more, a high antibacterial effect can be obtained, and the generation of offensive odor due to propagation of microorganisms can be more reliably prevented. In the above embodiment, the case where a soluble glass containing silver ions is used as the inorganic antibacterial agent has been described. However, an inorganic antibacterial agent other than the soluble glass may be used.

In the above embodiment, the case where the inorganic antibacterial agent is added to the resin case 6 of the cooling unit has been described. However, resin parts other than the resin case 6 of the cooling unit (for example, a fan duct). An inorganic antibacterial agent may be added to the resin molded part.

FIG. 4 is a conceptual diagram showing an installation position of a vehicle air conditioner according to a second embodiment of the present invention. In the figure, reference numeral 101 denotes a vehicle air conditioner, which is arranged in front of a passenger compartment 102 as shown in FIG. 4 (a). As shown in Fig. 4 (b), a blower 104, an evaporator heater 105, and a heater 106 are assembled in order from the upstream side to the unit case 102 constituting the air flow passage 103. Have been. Doors 107 are located on the downstream side, and a dust collecting filter 109 is located upstream from Evapore 105.

Reference numeral 108 denotes a drain pan for discharging the condensed water from Evapore 105 to the outside.

In the vehicle air conditioner 101, an antibacterial member 110 is mounted on the air outlet side of the evaporator 105. Fig. 5 shows the relationship between the evaporator 105 and the antibacterial member 110, and Fig. 6 shows the structure of the antibacterial member 110. As shown in FIGS. 5 and 6, the antibacterial member 110 has a comb shape, and a water-soluble substance 11 containing an inorganic antibacterial agent is provided at the tip of the comb tooth 113. 5 is fixed. Then, each tooth 113 of the comb-shaped antibacterial member 110 is inserted into the gap 105 of the fin of the evaporator 105. The antibacterial member 110 is attached to the evaporator 105.

Zeolite (zeolite) is used as the antibacterial agent, which is dissolved in water glass, which is a water-soluble substance, and solidified. The teeth of the comb-shaped antibacterial member 11 1 It is located in the department.

The procedure is as follows.

First, a comb-shaped body 1 1 1 is manufactured. The material of the main body 111 is a resin such as polypropylene, a metal, a ceramic, a non-woven cloth, or the like, but it is preferable to use a hydrophilic material. In this embodiment, the handle 1 1 2 is attached so that it can be held by hand.

Next, a solution of water glass containing zeolite, an antibacterial agent, is prepared. Then, as shown in FIG. 7 (a), the tips of the teeth 113 of the comb-shaped main body 111 are immersed in a solution 120 of water glass. The temperature of the water glass solution 120 may be room temperature, but it is better to raise the temperature slightly in order to increase the amount supported on the teeth 113.

After soaking for a certain period of time, pull up the main unit and dry it. Then, as shown in FIG. 7 (b), a comb-shaped antibacterial member 110 having a structure in which a water glass (water-soluble substance 115) containing an antibacterial agent is held at the tips of the teeth 113 is formed. It is completed. The drying temperature and the drying time may be determined appropriately depending on the product, but it is desirable that the temperature be set to about 150.

If the comb-shaped body 1 11 is made of a material that is not very hydrophilic, the tips of the comb teeth 1 1 1 If a hole 113b is made in the hole, or if a thin groove 113b is provided so that water glass can be sucked up by capillary action as shown in Fig. 8 (b), water Glass can be attached to the tips of the teeth 1 13 of the body 1 1 1.

By attaching the antibacterial member 110 to the evaporator 105 as described above, the water-soluble substance 115 containing an antibacterial agent is present in the flow path of the dew condensation water. The water-soluble substance 115 flows through the gaps between the fins, so that the water-soluble substance 115 melts out and the antibacterial agent contained in the water-soluble substance flows down Mixed into dew water. As a result, the entire water storage area (for example, drain pan 108) downstream of the dew condensation water flow path is sterilized by the antibacterial agent, the growth of bacteria is effectively suppressed, and the cause of the odor is eliminated. It will be.

In this case, since the water-soluble substance 115 contains an antibacterial agent, the antibacterial agent is gradually mixed into the condensed water with the dissolution of the water-soluble substance 115, and the water-soluble substance 115 is not used for a long time. Antimicrobial action is sustained. Therefore, there is no need to replace the antibacterial member 110 until the end of the life of the vehicle air conditioner.

Further, in this embodiment, since the water-soluble substance 115 containing the antibacterial agent is held by the comb-shaped antibacterial member 110, the antibacterial member is a solid member having one simple structure. It can be handled and can be easily attached to the evaporator 105.

The antimicrobial member 110 should be placed at a position where it surely comes into contact with the dew water of the evaporator 105, and the upper part of the evaporator 105 should be as good as possible. However, it is good to have a position that does not increase the ventilation resistance of the evaporator 105 as much as possible. To do this As a result, the antibacterial member 110 is located on the upstream of the flow path of the condensed water, and a bactericidal effect is exerted on the entire downstream region. In addition, it may be arranged not only on the air outlet side of the evaporator 105 but also on the air inlet side indicated by 110B in FIG. 4 (b).

Next, a third embodiment of the present invention will be described based on FIG. 9 and FIG.

In this embodiment, as shown in FIG. 9, an antibacterial member 130 having a saucer shape and a structure in which dew condensation water flows downward is disposed below the evaporator 105. As shown in FIGS. 10 (a), (b) and (c), this antibacterial member 130 is provided on the bottom wall of the saucer-shaped main body 131 with two slit-shaped members. Open the openings 1 3 2 and 1 3 2 in parallel to allow water to flow down, and insert the anti-microbial water glass into the narrow bar 1 3 3 between the two openings 1 3 2 and 1 3 2. (Water-soluble substance 135). In this case, the bottom of the main body 135 is immersed in a solution of water glass, so that the thin rod portion 133 is wrapped in water glass.

When disposing the antibacterial member 130 under the evaporator 105, place it so that the part with the water glass is just at the position where the condensed water drip.

As described above, when the antibacterial member 130 in a saucer shape is used, the antibacterial member 130 can receive the dew condensation water without leakage, and the antibacterial agent can be further applied to the dew condensation water flowing downstream. Can be mixed. Therefore, when dew water accumulates in the antibacterial member 130, it is possible to exert a bactericidal effect not only on the condensed water but also on the dew water in the entire downstream region. Also, condensation water Since a water-soluble substance containing an antibacterial agent is placed at the dropping position, the water-soluble substance can be efficiently dissolved in the condensed water, and the antibacterial agent can be mixed into the condensed water without delay. it can.

Although the antibacterial member 110 of the second embodiment and the antibacterial member 130 of the third embodiment can be used independently, an effect can be expected.

In each of the above embodiments, water glass was used as the water-soluble substance, and zeolite was used as the antibacterial agent. However, other water-soluble substances and antibacterial agents were used. Of course. However, it is preferable to use an inorganic antibacterial agent rather than an organic antibacterial agent.

FIG. 11 is an explanatory view of a vehicle air conditioner of a fourth embodiment. In the figure, reference numeral 201 denotes a vehicle air conditioner, which is arranged in front of a passenger compartment 202 as shown in FIG. 11 (a). As shown in Fig. 11 (b), the blower 204, the evaporator 205, and the heater 206 are arranged in the unit case 202 constituting the air flow path 203 in order from the upstream side. Is assembled. Doors 207 are located downstream, and a dust filter 209 is located upstream of evaporator 205. Reference numeral 208 denotes a drain pan for discharging the condensed water from evaporator 205 to the outside.

In this vehicle air conditioner 201, as shown in Fig. 11 (b) and Fig. 12, the space between the evaporator unit 205 and the unit case 202 is sealed and airtight. The evaporator lining 220 is affixed to ensure the sound insulation, sound insulation and heat insulation. This lining 220 is made by mixing an antimicrobial agent (such as zeolite) into the main material (such as polyethylene) and foaming it. It has a function of preventing the growth of microorganisms and preventing the generation of offensive odors by itself.

In this vehicle air conditioner 201, an antibacterial member 210 is mounted on the air outlet side of the evaporator 205. FIG. 12 shows the relationship between the evaporator 205 and the antibacterial member 210, and FIG. 13 shows the structure of the antibacterial member 210. As shown in FIGS. 12 and 13, the antibacterial member 210 has a comb shape, and a water-soluble material containing an inorganic antibacterial agent is provided at the tip of the comb teeth 21. Substance 2 15 is fixed. Then, the teeth 211 of the comb-shaped antibacterial member 210 are inserted into the gaps 205a between the fins of the evaporator 205, so that the antibacterial member 210 is attached to the evaporator 205. 0 is attached.

In this case, zeolite (zeolite) is used as an antibacterial agent, and this is dissolved in water glass, which is a water-soluble substance, and solidified. The teeth 211 of the comb-shaped antibacterial member body 211 It is located at the tip of the. To make this, for example, prepare a solution of water glass in which zeolite, an antibacterial agent, is dissolved, immerse the tips of the teeth 2 13 of the comb-shaped body 2 11 into the solution, and then hold it Raise and dry.

As described above, since the antibacterial agent is contained in the evaporator lining 220, the lining 220 itself exerts a bactericidal action, and bacteria grow in the water contained in the sponge-like lining 220. Can be suppressed.

Also, by attaching the antibacterial member 210 to the evaporator layer 205, the dew condensation water comes in contact with the water-soluble substance 215, resulting in condensation. The antibacterial agent can be mixed into the dew water, and as a result, the entire water storage area (for example, drain pan 208) downstream of the dew condensation water can be sterilized by the antibacterial agent. It can efficiently control the growth of bacteria and eliminate the cause of bad smell. In this case, since the antibacterial agent is contained in the water-soluble substance 215 (for example, water glass), the antibacterial agent is gradually mixed into the condensed water as the water-soluble substance 215 dissolves. The antibacterial effect is sustained over a long period of time. Therefore, there is no need to replace the antibacterial member 210 until the end of the life of the vehicle air conditioner.

The antibacterial member 210 should be placed at a position where it surely comes into contact with the dew water of the evaporator 205, and the upper part of the evaporator 205 is as good as possible. However, it is better to have a position where the ventilation resistance of the evaporator is not increased as much as possible. By doing so, the antibacterial member 210 is located upstream on the flow path of the condensed water, and a bactericidal effect is exerted on the entire downstream region. Further, it may be arranged not only on the air outlet side of the evaporator 205 but on the air inlet side indicated by 210B in FIG. 11 (b). Industrial applicability

As described above, the vehicle air conditioner according to the present invention is suitable as an air conditioner installed in a vehicle. The scope of the claims

1. In a vehicle air conditioner including an evaporator and a resin case for accommodating the evaporator,

The air conditioner for a vehicle, wherein the resin case is formed of a synthetic resin material to which an inorganic antibacterial agent is added.

2. A vehicle air conditioner comprising an evaporator bowl, a resin case accommodating the evaporator bowl, and a lining disposed between an outer peripheral surface of the evaporator bowl and an inner peripheral surface of the resin case. And

The air conditioning system for a vehicle, wherein the lining is formed by adding an inorganic antibacterial agent.

3. The vehicle air conditioner according to claim 1, wherein said inorganic antibacterial agent contains silver ions.

4. The vehicle air conditioner according to claim 3, wherein a soluble glass is used as the silver ion carrier.

5. The vehicle air conditioner according to claim 4, wherein the content of the soluble glass is 0.5% by weight or more.

6. An air conditioner for vehicles, characterized in that an antibacterial member holding a water-soluble substance containing an antibacterial agent is arranged on the flow path of the condensed water in the evaporator.

7. A comb-shaped antibacterial member is attached to the fin of the evaporator, and a water-soluble substance containing an antibacterial agent is held at the tip of the tooth of the comb-shaped antibacterial member inserted into the gap of the fin. A vehicle air conditioner characterized by the following.

8. Water containing antibacterial agent is added to the condensation point of the evaporator. A vehicular air conditioner, comprising a saucer-shaped antibacterial member for holding a volatile substance.

9. A vehicle air conditioner comprising an evaporator bowl, a resin case accommodating the evaporator bowl, and a lining disposed between an outer peripheral surface of the evaporator bowl and an inner peripheral surface of the resin case. And

An air conditioner for a vehicle, wherein the lining is formed of a foamed material obtained by foaming a main material by mixing an antibacterial agent.

Claims

IS box of amendment request [October 5, 1999 (05.10.999)] Accepted by the International Bureau: Claims originally filed 3-5 were withdrawn: Originally filed Requirement 1-2 in claims 1-2 and 9 have been amended; other claims remain unchanged. (2 pages)] Claims

1. (After correction) In a vehicle air conditioner equipped with an evaporator and a resin case for accommodating the evaporator,

The resin case is molded from a synthetic resin material to which an inorganic antibacterial agent is added,

The inorganic antibacterial agent contains silver ions,

A fusing glass is used as the silver ion carrier.

2. (After correction) Evaporator evening, a resin case for accommodating the evaporator evening, and a lining disposed between the outer peripheral surface of the evaporator evening and the inner peripheral surface of the resin casing. In vehicle air conditioners,

The lining is molded by adding an inorganic antibacterial agent, wherein the inorganic antibacterial agent contains silver ions,

A fusing glass is used as the silver ion carrier. A vehicle air conditioner.

3. (Delete)

4. (Delete)

5. (Deleted)

6. An air conditioner for vehicles, characterized in that an antibacterial member holding a water-soluble substance containing an antibacterial agent is arranged on the flow path of the dew condensation water at the evaporator.

7. A comb-shaped antibacterial member is attached to the fin of the evaporator, and a water-soluble substance containing an antibacterial agent is held at the tip of the tooth of the comb-shaped antibacterial member inserted into the gap of the fin. Being

20

«ΠΕ Form (Article 19 of the Convention) A vehicle air conditioner characterized by the above-mentioned.

8. An air conditioner for vehicles, characterized in that a saucer-shaped antibacterial member for holding a water-soluble substance containing an antibacterial agent is arranged at the position where the dew condensation water drops on the evaporator.

9. (After the correction) A vehicle air conditioner comprising: an evaporator evening, a resin case accommodating the evaporator evening, and a lining disposed between an outer peripheral surface of the evaporator evening and an inner peripheral surface of the resin case. In the device,

The lining is formed of a foamed material obtained by mixing an inorganic antibacterial agent with a main material and foaming the material;

The inorganic antibacterial agent contains silver ions,

A fusing glass is used as the silver ion carrier. A vehicle air conditioner.

twenty one

Amended paper (Convention 19 ^)