JP2005219562A - Air conditioner, case containing deodorizer and filter unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a case containing a deodorizer mountable to an air conditioner, a filter, and the air conditioner which can emit fragrant gas of the deodorizer for a long period without being influenced by air flow formed in an air passage and moisture such as water droplet infiltrating from outside of a cabin and condensation generated in the air passage, etc. <P>SOLUTION: In the air conditioner, at least a blower 20, an evaporator 40, and the case 31 containing the deodorizer are disposed on the air passage 10d. A through-hole which passes the fragrant gas of the deodorizer with an opening port area of 16 mm<SP>2</SP>or less and mixes it into the air passage is provided on the wall surface at the airflow downstream of the case containing the deodorizer or the wall surface at the lower part side. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an air conditioner for generating fragrance in a room, a case containing a fragrance installed in an air passage, and a filter unit which can be arranged in the air passage and has a case containing the fragrance fixed.

  2. Description of the Related Art Conventionally, aroma is generated in a vehicle interior in order to prevent odor in the vehicle interior and improve comfort. At this time, when the fragrance is generated from the air conditioner, the fragrance can be effectively filled into the passenger compartment together with the air blowing (for example, see Patent Document 1).

In the invention according to Patent Document 1, a filter unit in which a functional material carrying a fragrance or the like on a filter frame and a filter that collects dust and the like is integrated is disposed in an air passage of an air conditioner. At this time, the functional material is in the form of a sheet, a stick, or a string, and the functional material can be accommodated in the filter unit in a compact manner. However, since these functional materials are exposed in the air passage, the air flow formed in the air passage is directly hit, so the volatilization rate of the fragrance carried on the functional material is increased and the life is shortened. There is a problem that it becomes shorter or the scent is too strong, which makes it uncomfortable. In addition, water droplets that enter the air passage from outside the vehicle and dew condensation that occurs in the air passage may cause degradation of the fragrance due to hydrolysis and the like. There is also a problem of obstructing the air flow.
JP 2001-213157 A

  Therefore, in the present invention, the fragrance gas of the fragrance is used for a long time without being affected by the air flow formed in the air passage of the air conditioner, water droplets entering the air passage from the outside of the vehicle, and dew condensation generated in the air passage. An object is to provide an air conditioner capable of releasing a predetermined amount. In addition, when releasing fragrance gas, a case containing a fragrance that is not affected by the air flow formed in the air passage of the air conditioner, water droplets entering the air passage from the outside of the vehicle, and condensation generated in the air passage The purpose is to provide. It is another object of the present invention to provide a filter unit in which the fragrance-containing case and a filter are integrated.

In order to solve the above-mentioned problems, the present inventors developed an air conditioner by devising the shape of the case containing the fragrance and the arrangement position thereof. That is, the air conditioner according to the present invention includes at least a blower that generates an air flow, an evaporator, and a fragrance containing the fragrance in an air passage that forms an air flow from the air intake port toward the purified air discharge port. An air conditioner including a case, wherein the fragrance gas of the fragrance is passed through the wall surface on the downstream side or the lower side wall of the fragrance-containing case with an opening area of 16 mm ² or less to pass through the air passage One through hole to be mixed in is provided.

An air conditioner according to the present invention includes at least a blower for generating an air flow, an evaporator, and a fragrance containing the fragrance in an air passage that forms an air flow from the air intake port toward the purified air discharge port. An air conditioner having a case in which the fragrance containing case has an opening area of 10 mm ² or less, and has one through hole through which the fragrance gas of the fragrance passes and is mixed into the air passage. It is characterized by that.

  In the air conditioner according to the present invention, it is desirable that the fragrance is accommodated in a gas permeable bag and the bag is accommodated in the case containing the fragrance.

  In the air conditioner according to the present invention, the evaporator is a single tank type having a tank part at one end or a double tank type having a tank part at both ends, and the case containing the fragrance is juxtaposed to the tank part. Is desirable. Here, it is more desirable that the case containing the fragrance is not protruded from the tank portion in the air flow direction. Furthermore, it is more desirable to arrange the fragrance-containing case in a region where the cold air cooled by the evaporator contacts with the downstream side of the evaporator.

  In the air conditioner according to the present invention, it is preferable that a filter is provided in the air passage and the fragrance-containing case is fixed to an end of the filter.

  In the air conditioner according to the present invention, catechin may be supported on the filter.

  In the air conditioner according to the present invention, it is desirable that the wall surface having the through hole is directed downward from the horizontal.

The fragrance-containing case according to the present invention is a fragrance-containing case that contains fragrance and is disposed in an air passage of an air conditioner, and the fragrance-containing case has an opening area of 10 mm ² or less and has the fragrance. It has one through-hole through which the fragrance gas of the agent passes and is mixed into the air passage. At this time, it is desirable that the case containing the fragrance has fixing means that can be detachably connected to each other. More preferably, the fragrance-containing case is formed of polypropylene.

  In the fragrance-containing case according to the present invention, it is desirable to accommodate a gas permeable bag containing the fragrance.

The filter unit according to the present invention is a filter unit arranged in an air passage of an air purifier or an air conditioner, and contains the fragrance and allows the fragrance gas of the fragrance to pass therethrough with an opening area of 10 mm ² or less. A fragrance-containing case having one through hole to be mixed in the air passage, and a filter for purifying the air flow formed in the air passage, wherein the fragrance-containing case is connected to an end of the filter. It is fixed to the part.

  In the filter unit according to the present invention, catechin may be supported on the filter.

  In the air conditioner according to the present invention, by providing only one through-hole of a predetermined size in the case containing the fragrance, the fragrance gas of the fragrance is generated for a long time. be able to. Further, it is possible to prevent water droplets that enter the air passage from outside the vehicle and dew condensation that occurs in the air passage from entering the inside of the case containing the fragrance, and prevent contact between the fragrance and moisture such as condensation. . Thereby, alteration due to hydrolysis of the fragrance can be prevented. Therefore, the fragrance does not deteriorate for a long time. Furthermore, it is possible to control the volatilization with high accuracy in two stages together with the through hole of the case by enclosing the fragrance in a gas permeable bag and further selecting the material of the bag.

  Further, if the case containing the fragrance is juxtaposed to the tank part, preferably the case is juxtaposed so as not to protrude from the tank part of the evaporator with respect to the air flow direction, the case containing the fragrance does not hinder the air flow.

  In addition, if the case containing the fragrance is placed downstream of the evaporator and in a region in contact with the cool air cooled by the evaporator, the volatile amount of the fragrance will be suppressed, and the volatile gas will not be excessively filled into the room. The lifetime of the fragrance can be extended.

  Further, the filter unit in which the fragrance-containing case and the filter are integrated eliminates the need to secure a space for arranging the fragrance-containing case in the air passage in advance.

  Further, if the catechin is supported on the filter, it is possible to sterilize or deodorize the air flow that passes through the filter.

  EXAMPLES Although an Example is shown and this invention is demonstrated in detail, this invention is limited to these description and is not interpreted.

  FIG. 1 shows a schematic side view of an air passage from an air inlet to an evaporator when the air conditioner according to the present embodiment is incorporated in a vehicle. The air conditioner 100 includes an air conditioner body 10 that forms an air passage. The air conditioner body 10 is formed with an air suction port 10a composed of an inside air suction port 10b and an outside air suction port 10c that are opened and closed by a damper 11, an air passage 10d connected to the air suction port 10a, and a purified air discharge port 10f. ing. In the air passage 10d, a blower 20, a filter unit 30, and an evaporator 40 are sequentially provided from the upstream side. When the blower 20 is driven, air is taken into the air passage 10d from the open side of the air suction port 10a. This air forms an air flow 10 e that passes through the filter unit 30 and is then cooled by the evaporator 40. Thereafter, the air is blown into the passenger compartment through an air mix door (not shown), a heater (not shown) and the like.

  In FIG. 1, the blower 20, the filter unit 30, and the evaporator 40 are arranged in this order from the upstream side of the air flow 10e. However, the filter unit, the evaporator, and the blower may be arranged in this order, or the filter unit, the blower, and the evaporator may be arranged in this order.

  The filter unit 30 includes a filter for purifying air and a case 31 containing a fragrance that is fixed to the filter. FIG. 2A shows a schematic diagram of the filter unit 30. In FIG. 2A, the filter unit 30 includes a filter 21 that cleans air in a filter frame 50 that fixes a filter end so that the filter surface is not covered. A case 31 containing a fragrance is fixed to the end of the filter 21, and the case 21 containing the fragrance is integrated with the case 21. By integrating the filter 21 and the case 31 containing the fragrance, there is no need to secure an arrangement space for the case 31 containing the fragrance in the air passage 10d shown in FIG. In the filter 21, a filter frame 50 that fixes the filter end portion so that the filter surface is not covered is incorporated with only a dust collection filter or a filter in which a dust collection filter and a deodorizing filter are combined. These filters are preferably processed into pleats in order to increase the filter area. Moreover, when providing a deodorizing filter, it is more desirable to carry | support a photocatalyst to a deodorizing filter and to decompose | disassemble the deodorizing component adhering to the deodorizing filter with an ultraviolet-ray generation lamp. The filter 21 may carry catechin. Catechin is an ingredient that is abundant in green tea. By using the filter 21 carrying catechin, effects such as sterilization, deodorization, and adsorption of chemical substances of the air flow that permeates the filter 21 by a chemical reaction can be exhibited.

  In addition, in order to detachably fix the filter frame 50 to the air conditioner main body 10 shown in FIG. 1, it is desirable to provide a locking claw (not shown) on the filter frame 50. This facilitates maintenance or replacement of various filters. The ultraviolet ray generating lamp may be supported by the air conditioner main body 10 shown in FIG. 1 without being fixed to the filter frame 50, or may be fixed to the filter frame 50 shown in FIG. Further, the filter frame 50 may be divided into a lattice shape, and the filter 21 may be incorporated in each of the divided frames.

  The case 31 containing the fragrance contains the fragrance inside. FIG. 8 shows a perspective view of the case containing the fragrance according to the present embodiment. The case 31 with a fragrance has a case main body 36 that contains the fragrance, and a through hole 53 for allowing the fragrance gas of the fragrance to flow out of the case 31 with the fragrance.

  The through-hole 53 is for letting out the fragrance gas of the fragrance to the outside, and only one is provided in the case body 36. For example, when a plurality of through holes are provided in the case 31 containing the fragrance, condensation generated in the air passage 10d shown in FIG. 1 adheres to one through hole, and the case 31 containing the fragrance is caused by the pressure of the air flow. When it is going to be pushed in, the air inside the case 31 containing the fragrance flows out from another through hole, so that condensation easily enters the inside of the case 31 containing the fragrance from the through hole 53. Therefore, by providing only one through hole 53, even if dew adheres to the through hole 53, the dew does not enter the fragrance containing case 31 as a cover of the through hole 53. Moreover, in FIG. 8, the case 31 containing a fragrance | flavor showed the form with the accommodating part of a fragrance | flavor, but the inside of the case 31 containing a fragrance | flavor was divided | segmented, and it is set as two or more accommodating parts of a fragrance | flavor. One through hole may be provided in each of the divided accommodating portions. For example, FIG. 9 shows a second form of the fragrance-containing case 31. FIG. 9 is a schematic cross-sectional view of a case containing a fragrance. The inside of the main body case 36 is divided into two fragrance containing portions. In this case, one through hole 54a and 54b through which the fragrances 55a and 55b flow out is provided in the fragrance containing portion. If the inside of the fragrance containing case 31 is divided to have two or more fragrance containing portions, the amount of fragrance gas released can be increased without increasing the number of the fragrance containing cases 31.

The opening area of the through hole 53 is desirably larger than 0 and 16 mm ² or smaller. More desirably, the opening area of the through hole 53 is set to be greater than 0 and equal to or less than 10 mm ² . Here, when the opening area is larger than 10 mm ² and 16 mm ² or less, the through hole 53 is provided on the wall surface on the downstream side or the lower wall surface of the case 31 containing the fragrance. Further, the shape of the through hole 53 is preferably a water drop shape, that is, a circle or an ellipse close thereto. Further, it may be a polygon close to a circle such as a regular pentagon. By providing the through-hole 53 having an opening area larger than 0, the fragrance gas of the fragrance contained in the case 31 containing the fragrance can be surely discharged from the through-hole 53. Further, by setting the opening area of the through hole 53 to 16 mm ² or less and providing the through hole 53 on the wall surface on the downstream side or the lower wall surface of the case 31 containing the fragrance, it is possible that the wind directly hits the through hole 53. It is possible to prevent condensation from entering the case 31 containing the fragrance. Furthermore, if the opening area of the through hole 53 is 10 mm ² or less, the penetration of condensation into the fragrance containing case 31 is caused by the surface tension of water regardless of the direction of the through hole 53 with respect to the air flow. Can be prevented. Naturally, even if the opening area is 10 mm ² or less, providing the through hole 53 on the wall surface on the downstream side or the lower wall surface of the airflow case 31 of the air freshener case 31 It is effective for preventing dew condensation from entering the inside. In addition, the amount of fragrance gas released can be controlled by adjusting the opening area in the range of more than 0 and 16 mm ² or less. When the temperature in the air passage becomes high, the amount of fragrance gas generated by the fragrance increases. In this case, since the release of the fragrance gas is restricted by the through hole 53, the opening area is adjusted to suppress excessive release at high temperature, thereby extending the fragrance life and making the fragrance too strong and uncomfortable. Prevent giving.

  The thickness of the wall surface of the case 31 containing the fragrance is desirably set to a thickness that does not allow the fragrance gas of the fragrance to pass through the wall surface and can ensure the mechanical strength of the case 31 containing the fragrance, for example, 0.5 mm or more. Moreover, it is more desirable to set it as 0.8 mm or more from points, such as the uniformity at the time of shaping | molding. Since the case 31 containing the fragrance has the through-hole 53, it is not necessary to allow the fragrance gas of the fragrance to permeate from the wall surface of the case 31 containing the fragrance, and the mechanical strength required for the case 31 containing the fragrance. Can be secured.

  The case 31 containing the fragrance is preferably fixed to the end of the filter 21 as shown in FIG. For example, by extending the frame body at both ends of the filter 21 of the filter frame 50, a linear groove is provided in the extended frame body, and on the other hand, a rail that fits into the groove provided in the frame body on both sides of the fragrance containing case 31. You may fix so that a case 31 containing a fragrance | flavor may be provided and a scent-containing case 31 may slide. Moreover, you may fix the case 31 containing a fragrance | flavor by providing the fitting which becomes a pair with the fitting 32 shown in FIG. 8 provided in the both sides of the case 31 containing a fragrance | flavor in the extended frame. At this time, it may be detachable. By fixing the fragrance-containing case 31 to the filter frame 50 detachably, only the fragrance-containing case 31 can be replaced.

  Further, it is desirable that the fragrance-containing case 31 has fixing means (not shown) that can be connected. For example, as shown in FIG. 8, a fragrance is obtained by fitting (not shown) paired with a fitting 32 provided on the outer wall of the case 31 containing fragrance and a fitting 32 provided at a symmetrical position of the case 31 containing fragrance. The case 31 with an agent can be connected to each other. By connecting the fragrance-containing cases 31 to each other, for example, as shown in FIG. 2A, a plurality of fragrance-containing cases 31 can be formed by combining a plurality of small cases 31a and 31b. The small cases 31a and 31b are provided with through holes 53a and 53b, respectively. Although FIG. 2A shows an embodiment in which there are two small cases, there may be three or more small cases. Since the small case can be divided into a plurality of cases, the number of cases to be fixed can be adjusted to suit the size of the filter frame.

  In addition, in this embodiment, although the form which arrange | positions the filter unit 30 provided with the case 31 containing a fragrance | flavor and the filter 21 in the air path of an air conditioner was shown, the filter unit 30 is also arrange | positioned also in the air path of an air purifier. May be. The air purifier is a device that sterilizes indoor air, deodorizes, etc., and arranges the filter unit according to the present embodiment in the air passage of the air purifier, thereby purifying the air in the room and aroma gas in the room. Can be generated.

  Moreover, it is desirable that the case 31 containing the fragrance is fixed to the filter 21 so that the through hole 53 is on the downstream side of the air flow when the filter unit 30 is disposed in the air passage 10d shown in FIG. FIG. 2B shows a schematic view of the AA ′ cross section of the case 31 containing the fragrance, and FIG. 2C shows another form of the schematic view of the AA ′ cross section of the case 31 containing the fragrance. . As shown in FIG. 2B, the case 31 containing the fragrance is provided with one through hole 53 on the downstream side of the air flow. When the through hole 53 is provided on the upstream side of the air flow, it is assumed that the air flow enters the case 31 containing the fragrance from the through hole 53, and if the water droplets enter, the volatilization rate of the fragrance may be increased. Arise. Therefore, it is desirable that the through-hole 53 is provided at least on the wall surface on the downstream side of the air flow, preferably on the wall surface on the downstream side of the air flow, so that the aromatic gas of the fragrance is naturally mixed in the air flow.

  Further, the wall surface having the through hole 53 may be directed downward from the horizontal. For example, the wall surface having the through hole 53 may be inclined as shown in FIG. By directing the wall surface having the through-hole 53 downward from the horizontal, that is, having a vector in the direction of gravity, even when a water droplet adheres to the through-hole 53, the water droplet tends to fall due to the gravity applied to the water droplet. It is possible to prevent water droplets from entering the inside of the case 31 containing the fragrance from 53.

  As the fragrance 52 shown in FIG. 2 (b), any fragrance can be used as long as it is volatile at room temperature. Examples of the fragrance 52 include esters, ethers, and phenols. Examples of the fragrance include citrus fragrances such as citrus and lemon, and herbal fragrances such as mint. In the present embodiment, the fragrance 52 may be in a liquid form, but for example, it is contained in a medium such as a porous body or a polymer, or is heated and melted with a heat-meltable material to be cooled and solidified after kneading to form a gel. Alternatively, it may be solid. Further, the kneaded material may be impregnated into a porous material and then cooled and solidified to form a solid. At this time, it is more preferable to use a hydrophobic material as the heat-meltable material because the fragrance can be protected from water vapor or the like that has entered the case. When the gel-like or solid fragrance-containing material is granulated, it is desirable to select a particle size that does not fall out of the through-hole 53 within a particle size range of 1 to 10 mm. Furthermore, it is more desirable because it is possible to accurately control volatilization in two stages together with the through-hole of the case by enclosing the fragrance in a gas permeable bag and further selecting the material of the bag. . For example, since the volatilization from the bag body is rate limiting at a low temperature, the scent strength can be ensured by using a bag body having a relatively high gas permeability. On the other hand, since the volatilization from the opening of the through hole becomes rate-limiting when the temperature is high, limiting the opening area prevents the scent strength from becoming extremely large. The material for the bag is preferably a material having low moisture permeability and water resistance in order to protect the fragrance 52 from condensation that occurs in the case containing the fragrance. Thereby, alteration due to chemical reaction such as hydrolysis of the fragrance can be prevented. Moreover, it is desirable that the material has gas permeability that allows the fragrance gas of the fragrance 52 to pass in a balanced manner. Using a gas-permeable material that permeates fragrance gas in a well-balanced manner, even if a fragrance comprising a plurality of fragrance components is contained in a bag, only a specific fragrance component will not be lost at an early stage. The quality of the product never changes. Further, it is desirable that the material has a chemical resistance with little deterioration due to contact with the fragrance 52. Furthermore, it is desirable that the material has a small decrease in seal strength due to contact with the fragrance 52.

The bag body is preferably made of a material in which, for example, a linear low density polyethylene film (L-LDPE) is disposed in the innermost layer, and a non-stretched or stretched polypropylene film (PP) is laminated thereon. In ordinary low-density polyethylene film (LDPE), when limonene blended with citrus fragrance is coated, there is a problem that the seal strength decreases with time, but L-LDPE has a high absolute value of seal strength. Even when in contact with the fragrance, there is little decrease in the sealing strength. However, if L-LDPE is to be used alone, the strength is not sufficient and the moisture permeability is relatively high, so that the fragrance cannot be effectively protected when the air passage 10d becomes highly humid. There is a fear. Therefore, PP with high water resistance is laminated on the outside of L-LDPE. Here, when an unstretched polypropylene film is used as PP, since the sealing strength is relatively high and there is little decrease in sealing strength over time, depending on the purpose, L-LDPE may not be laminated and used alone. it can. Moreover, you may laminate | stack a nonwoven fabric (for example, areal weight 14g / mm < ² >) further outside PP. When a nonwoven fabric is laminated | stacked, the intensity | strength of a bag body can be increased and the filling speed at the time of filling a bag body with an aromatic agent can be raised. Therefore, it is possible to ensure filling suitability when the bag body is filled with the kneaded product of the fragrance and the hot-melt material.

  These fragrances 52 are accommodated in the fragrance containing case 31 for use. In addition, the amount of fragrance gas generated by the fragrance 52 is preferably 2 to 50 mg / day, and more preferably 6 to 10 mg / day from the viewpoint of generating a comfortable scent in the passenger compartment. For example, when mint is used as the fragrance 52, the fragrance 52 is accommodated in the case 31 containing the fragrance so that the amount of fragrance gas generated is 5 to 20 mg / day including the volatilization error.

  The case material for the case 31 containing the fragrance is preferably polypropylene from the viewpoint of chemical resistance to the fragrance and wettability of water droplets. Polypropylene is a material with high water repellency. By using a polypropylene case as the case 31 with fragrance, water droplets attached to the case 31 with fragrance can be effectively removed from the case 31 with fragrance by a hydrophobic effect. .

  In the air conditioner according to the present embodiment shown in FIG. 1, the fragrance containing case 31 containing the fragrance is arranged on the upstream side of the air flow of the evaporator 40, but may be arranged on the downstream side of the air flow of the evaporator 40. Further, the fragrance-containing case 31 may be arranged at any position in the air passage, but it is desirable to arrange the fragrance-containing case 31 around the evaporator 40 in order to secure a space for arranging the fragrance containing case.

  The evaporator of the air conditioner of this embodiment may be either a single tank type with a tank part at one end or a double tank type with a tank part at both ends. In the case of FIG. 1, an evaporator of both tank types is shown in which an upper tank portion 41a is provided at the upper end portion of the evaporator 40 and a lower tank portion 41b is provided at the lower end portion. At the center of the evaporator, a tube element through which the refrigerant passes and fins for increasing the efficiency of heat exchange between the air flow and the refrigerant are arranged (not shown). As shown in FIG. 3 showing the second embodiment of the air conditioner, a single tank type evaporator may be arranged instead of the both tank type evaporator.

  In the present embodiment, it is preferable that the case 31 containing the fragrance is juxtaposed with the upper tank portion 41a, and more preferably, the case 31 containing the fragrance does not protrude from the upper tank portion 41a in the air flow direction as shown in FIG. As described above, it is desirable to place the fragrance-containing case 31 in parallel with the upper tank portion 41a. By juxtaposing in this way, the case 31 containing the fragrance does not hinder the air flow 10e.

  FIG. 1 shows a form in which the fragrance-containing case 31 is detachably fixed to the upper end portion of the filter frame of the filter unit 30 installed on the upstream side of the air flow of the evaporator 40. FIG. 1 shows a third form of the air conditioner. A case 33 containing a fragrance may be fixed as a fragrance cartridge to the air conditioner body 10 that forms an air passage as in FIG. By fixing the fragrance-containing case 33 alone to the main body case, the position of the filter unit is not limited, and only the fragrance-containing case 33 can be replaced. At this time, by adopting a fixing method for fixing the fragrance-containing case 33 at an arbitrary inclination angle, even if the fragrance contained in the fragrance-containing case 33 is liquid, the direction of the wall surface having the through hole is directed upward. The liquid fragrance can be prevented from leaking from the fragrance containing case 33. For example, the fitting 32 shown in FIG. 8 is provided on the wall surface of the case 33 containing the fragrance, while the fitting that is paired with the fitting 32 is also provided on the air conditioner main body 10 so as to be fitted when the case 33 containing the fragrance is fixed. This can be realized by allowing the fragrance-containing case 33 to freely rotate around the axis of the joint 32. In this case as well, it is desirable to arrange the tank unit 41a in parallel so as not to obstruct the air flow.

  Moreover, it is good also as arrange | positioning the case 33 containing a fragrance | flavor so that the wall surface which has the through-hole of the case 33 containing a fragrance | flavor may face downward from horizontal. FIG. 4B shows a partially enlarged view in the case where the fragrance-containing case 33 is fixed to the air conditioner main body 10 in another form. As shown in FIG. 2 (c), the wall surface having the through hole 53 may be inclined. For example, as shown in FIG. 4 (b), the fragrance-containing case 33 is disposed obliquely with respect to the air passage. By doing so, it is good also as arrange | positioning the case 33 containing a fragrance | flavor with the wall surface which has the through-hole 53 facing the downward side from horizontal. Even in this case, it is desirable that the fragrance-containing case 33 is arranged so that the direction of the wall surface having the through hole 53 is directed in the direction of gravity. By directing the wall surface having the through-hole 53 downward from the horizontal, even when a water droplet adheres to the through-hole 53, the water droplet tends to fall due to gravity applied to the water droplet. It is possible to prevent water droplets from entering the water.

  As shown in FIG. 5 showing the fourth embodiment of the air conditioner, the fragrance-containing case 35 may be juxtaposed in the lower tank portion 41b of both tank type evaporators.

  6 and 7 show the fifth and sixth embodiments of the air conditioner. It is desirable to arrange the case 34 containing the fragrance in the region where the cool air cooled by the evaporator 40 contacts the case 34 containing the fragrance on the downstream side of the evaporator 40. For example, as shown in FIG. 6, it is good also as arrange | positioning the case 34 containing fragrance | flavor in the position juxtaposed to the upper tank part 41a in the downstream side of the evaporator 40 of both tank types. In the air passage 10d on the upstream side of the evaporator 40, a temperature change of −5 ° C. to 40 ° C. occurs throughout the year regardless of whether the evaporator 40 is operating. On the other hand, in the region where the cold air cooled by the evaporator 40 is in contact with the downstream side of the evaporator 40, a stable temperature of -5 ° C to 15 ° C is maintained. By placing the case 34 containing the fragrance in this position and placing the fragrance in a low temperature environment, the volatilization amount of the fragrance is suppressed, the fragrance gas is not excessively filled in the room, and the lifetime of the fragrance is increased. Can be extended. As shown in FIG. 7 showing the sixth embodiment of the air conditioner, the fragrance can be placed in a low temperature environment even if the case 34 containing the fragrance is juxtaposed in the lower tank portion 41b of the both tank type evaporator 40. The volatilization amount of the fragrance is suppressed, the fragrance gas is not excessively filled in the room, and the life of the fragrance can be extended.

  Here, the procedure by which the air conditioner according to the present embodiment generates fragrance in the vehicle interior will be described with reference to FIGS. 1, 2 (a), and (b). First, the filter unit 30 in which the fragrance-containing case 31 is fixed to the filter frame 50 shown in FIG. 2A is arranged in the air passage 10d of the air conditioner 100 shown in FIG. At this time, the amount of the fragrance 52 is adjusted in advance so that the fragrance gas of the fragrance 52 is 2 to 50 mg / day including the volatilization error, and is stored in the case 31 containing the fragrance. Desirably, the case 31 containing the fragrance is fixed to the filter frame so that the through hole 53 shown in FIG. 2B faces the downstream side of the air flow when the filter unit 30 is disposed. At this time, the fragrance 52 shown in FIG. 2B housed in the fragrance containing case 31 naturally volatilizes and generates a fragrance gas. The fragrance gas of the fragrance 52 flows out from the through hole 53 to the air passage 10d shown in FIG.

  Next, when the blower 20 shown in FIG. 1 is driven, air is taken into the air passage 10d from the open side of the air inlet 10a to form an air flow 10e. The fragrance gas flowing out from the case 31 containing the fragrance is mixed into the air flow 10e, cooled by the evaporator 40, and blown out into the vehicle compartment through an air mix door (not shown), a heater (not shown) and the like. Since the fragrance 52 is protected from the air flow by the wall surface of the case 31 containing the fragrance, it is blown out into the vehicle interior by the amount of the naturally volatile aroma gas regardless of the air volume of the air flow. Can be improved. Further, since only one through-hole 53 is provided, the fragrance is not affected by moisture such as dew condensation generated by the evaporator 40 cooling the air flow 10e, so the amount of fragrance gas generated is always constant. Thus, the comfort in the passenger compartment can be improved.

A volatile agent volatility test was performed. As a fragrance, 4 g of mint-based fragrance is sealed in a bag body of 78 mm length × 31 mm width comprising a laminate of a 40 μm thick polypropylene film having gas permeability and a 30 μm thick linear low density polyethylene film. The case containing the fragrance | flavor made from a polypropylene shown in FIG. 8 which accommodated the bag body and provided one through-hole with an area of 3.14 mm < ² > was made into (Example 1). Further, the same amount (4 g) of the fragrance as in Example 1 was stored directly in the fragrance-containing case shown in FIG. 8 as (Example 2). Moreover, what carried the fragrance | flavor in the same amount (4g) filter as Example 1 was set as (comparative example). The amount of fragrance used was measured and compared in Examples and Comparative Examples. The measurement environment was an external temperature of 30 ° C. The results are shown in Table 1.

  In Table 1, the structure indicates the structure of the volatilization test object. The generation amount indicates the daily generation amount of the aromatic gas. The scent intensity is a numerical value representing the sensation of the scent, with 0 being no scent, 1 not being able to recognize what scent, 2 being scent that is faint, 2 being able to recognize what scent is weak The fragrance, 3 is clearly felt, 4 is strongly felt, and 5 is unbearably strong.

  From Table 1, since the generation amount is as large as 60 mg / day in the comparative example, even if the same amount of the fragrance as in Example 1 is carried, the effective period is remarkably shortened and the scent intensity is also increased. On the other hand, in Example 1, a pleasant fragrance can be maintained for a long time. Also in Example 2, the amount of fragrance gas generated can be 15 mg / day, the effective period can be 267 days, a pleasant fragrance can be generated, and the life of the fragrance can be sufficiently secured.

Also, through holes are made in polypropylene plates, and one drop of water is put into each through hole. Evaluation is based on whether water drops pass through the through hole with or without wind from the front of the through hole. A water penetration test was conducted. The opening area of the provided through-holes, respectively ^{3.14mm 2, 7.06mm 2, 12.56mm 2} , is 19.6 mm ^2. The results are shown in Table 2.

Also, a plurality of through-holes having the same opening area are provided in the polypropylene case shown in FIG. 8, one water drop is put into a certain through-hole, and the water drops enter the case by applying wind from the front of the through-hole. A water penetration test was conducted to evaluate whether or not. The opening area of the provided through-holes, respectively ^{3.14mm 2, 7.06mm 2, 12.56mm 2} , is 19.6 mm ^2. The results are shown in Table 3. Also, a plurality of cases made of polypropylene shown in FIG. 8 are prepared, and one through hole is provided in each case with a predetermined opening area. In each case, one water droplet is put in the through hole, and the through hole is made into a wind. On the other hand, a water intrusion test was performed to evaluate whether or not water droplets entered into the case when the front was facing forward and when the through hole was facing backward with respect to the wind. The opening area of the provided through-holes, respectively 12.56mm ^2, 16mm ^2, it is 19.6 mm ^2. The results are shown in Table 4. In Tables 2, 3, and 4, “◯” indicates that water did not completely enter. “NG” indicates that water has entered. In Tables 2, 3, and 4, the through-hole diameter corresponding to the opening area is shown together with the opening area of the through-hole.

From Table 2, if not expose the wind plate, an opening area 3.14 mm ^2, the through hole of 7.06Mm ² and 12.56Mm ^2, but not the water to pass through the plate, the opening area 19.6 mm ² In the through hole, the water passes completely through the plate. On the other hand, when applying a wind plate, a through hole opening area 12.56Mm ² and 19.6 mm ^2, the water is passed completely through the plate, through the open area 3.14 mm ² and 7.06Mm ² In the hole, water does not pass through the plate. From the above results, the opening area of the through hole 10 mm ² or less, it is desirable that preferably is 7.06Mm ² or less. In addition, if the opening area is 7.06 mm ² or less, water does not pass through the through-hole even if wind is applied, but it is better that the wind does not hit the through-hole as much as shown in FIG. As described in the case containing the fragrance shown, it was proved by the examples that the through hole is preferably provided on the wall surface on the downstream side with respect to the air flow.

Further, from Table 3, when ^two through holes having an opening area of 3.14 mm ² and 7.06 mm ² are provided in the case, water enters the case, but the opening area is 3.14 mm ² and 7.06 mm. ^{When two} through holes are provided in the case, water does not enter the case. From the above results, the opening area of the through hole 10 mm ² or less, preferably it is desirably 7.06Mm ² or less, the through holes may be desirable to provide only one case was also demonstrated examples.

Moreover, it can be seen from Table 4 that even if the opening area is 12.56 mm ² , the penetration of water into the case can be prevented by setting the direction of the through-hole to the rear side with respect to the wind. Further, it can be seen that when the through-hole is directed rearward with respect to the wind, water can be prevented from entering the case at least up to an opening area of 16 mm ² .

It is a side schematic diagram showing one form of an air passage from an air inlet to an evaporator when an air conditioner is incorporated in a vehicle. The schematic diagram of the filter unit of FIG. 1 and a case containing a fragrance | flavor is shown, (a) is a schematic diagram which shows a use condition, (b) is the schematic of the AA 'cross section of a fragrance | flavor containing case, (c) is fragrance. It is the schematic of another form of the AA 'cross section of a case containing an agent. It is a side schematic diagram showing the 2nd form of an air-conditioner. (A) is the side surface schematic diagram which shows the 3rd form of an air conditioner. (B) is the elements on larger scale which showed one example of the form which fixes a fragrance | flavor containing case to an air-conditioner main body. It is a side schematic diagram showing the 4th form of an air-conditioner. It is a side schematic diagram showing the 5th form of an air-conditioner. It is a side schematic diagram showing the 6th form of an air-conditioner. It is a perspective view which shows one example of embodiment of a fragrance | flavor containing case. It is a schematic sectional drawing which shows the 2nd form of a fragrance | flavor containing case.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Air conditioner 10 Air conditioner main body 10a Air inlet 10b Inside air inlet 10c Outside air inlet 10d Air passage 10e Air flow 10f Purified air outlet 11 Damper 20 Blower 21 Filter 30 Filter unit 31 33 34 35 Engagement case 32 36 Case body 40 Evaporator 41a Upper tank part 41b Lower tank part 50 Filter frame 51 Dust collection filters 52, 55 Fragrances 53, 54 Through hole

Claims (15)

An air conditioner in which an air passage that forms an air flow from the air intake port to the purified air discharge port has at least a blower that generates an air flow, an evaporator, and a case containing a fragrance containing the fragrance. In addition, one through hole is provided on the wall surface on the downstream side of the air flow or the lower wall surface of the case containing the fragrance so that the fragrance gas of the fragrance passes through the air passage with an opening area of 16 mm ² or less. An air conditioner characterized by that. An air conditioner in which an air passage that forms an air flow from the air intake port to the purified air discharge port has at least a blower that generates an air flow, an evaporator, and a case containing a fragrance containing the fragrance. The air-conditioning apparatus is characterized in that the case containing the fragrance is provided with one through hole through which the fragrance gas of the fragrance passes and is mixed into the air passage with an opening area of 10 mm ² or less.   The air conditioner according to claim 1 or 2, wherein the fragrance is stored in a gas permeable bag and the bag is stored in the case containing the fragrance.   The evaporator is a single tank type in which a tank part is provided at one end or a double tank type in which a tank part is provided at both ends, and the case containing the fragrance is juxtaposed to the tank part. The air conditioner according to 2 or 3.   The air conditioner according to claim 4, wherein the case containing the fragrance is not protruded from the tank portion with respect to an air flow direction.   The air conditioner according to claim 1, 2, 3, 4, or 5, wherein the fragrance-containing case is disposed in a region where the cold air cooled by the evaporator contacts with the downstream side of the evaporator.   The air conditioner according to claim 1, 2, 3, 4, 5 or 6, wherein a filter is provided in the air passage, and the case containing the fragrance is fixed to an end of the filter.   The air conditioner according to claim 7, wherein catechin is supported on the filter.   The air conditioner according to claim 1, 2, 3, 4, 5, 6, 7 or 8, wherein the wall surface having the through hole is directed downward from the horizontal. A case containing a fragrance containing a fragrance and disposed in an air passage of an air conditioner, wherein the fragrance-containing case has an opening area of 10 mm ² or less and allows the fragrance gas of the fragrance to pass through the air. A case containing a fragrance having one through-hole mixed in the passage.   The case containing a fragrance according to claim 10, wherein a bag body having gas permeability and containing the fragrance is accommodated.   12. The fragrance-containing case according to claim 10 or 11, wherein the fragrance-containing case has fixing means that can be detachably connected to each other.   The fragrance-containing case according to claim 10, 11 or 12, wherein the fragrance-containing case is formed of polypropylene. In a filter unit arranged in an air passage of an air purifier or an air conditioner, a through-hole that contains a fragrance and allows an fragrance gas of the fragrance to pass through the air passage with an opening area of 10 mm ² or less. A fragrance-containing case having one and a filter for purifying the air flow formed in the air passage, and the fragrance-containing case is fixed to an end of the filter. Filter unit to be used.   The filter unit according to claim 14, wherein catechin is supported on the filter.

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