JP2015039893A - Aromatic device of automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an aromatic device for an automobile for restraining unnecessary discharge of an aromatic component in nonuse, with a simple structure.SOLUTION: The aromatic device 5 for the automobile comprises an aromatic storage body 41 for storing an aromatic 57, an air inflow member 47 for connecting an air inflow pipe 43 of the aromatic storage body 41 and an air conditioner 3 of the automobile, and an aromatic component discharge member 49 for connecting an aromatic component discharge pipe 45 of the aromatic storage body 41 and the air conditioner 3 of the automobile. The space volume in the aromatic storage body 41 is set smaller than the total space volume of totaling the space volume in the air inflow member 47 and the space volume in the aromatic component discharge member 49.

Description

  The present invention relates to a car fragrance device.

  2. Description of the Related Art Conventionally, a technique for volatilizing a fragrance component and a pesticide component made of gas and releasing them into a passenger compartment of an automobile (see, for example, Patent Document 1).

  For example, the fragrance component releasing device is provided on a casing that stores a fragrance, a door that is pivotally supported by the casing, a driving unit that opens and closes the door, and a peripheral edge of the casing. And a sealing rubber that can be in close contact with the door.

  And when not in use, the fragrance is sealed by closing the door and pressing against the seal rubber to suppress unnecessary release of the fragrance component. On the other hand, at the time of use, the drive means is operated to open the door, air is supplied from an air conditioner or the like, and the aromatic component is volatilized by being applied to the fragrance to release the aromatic component into the passenger compartment.

JP-A-4-23937

  However, the conventional fragrance component releasing apparatus requires a door, a seal rubber, and a driving means for opening and closing the door, and thus has a problem that the structure becomes complicated.

  Accordingly, an object of the present invention is to provide an automobile fragrance device that has a simple structure and suppresses unnecessary release of fragrance components when not in use.

  In the fragrance device for automobiles according to the present invention, the fragrance is contained in the fragrance storage body, and after the air from the air conditioner of the automobile is supplied to the fragrance storage body through the air inflow member, the fragrance component is The mixed air is supplied to the air conditioner through the fragrance component releasing member.

  And the space volume in the said fragrance | flavor container is set smaller than the total space volume which combined the space volume in the said air inflow member, and the space volume in an aroma component discharge | release member.

  In the fragrance device for automobiles according to the present invention, the spatial volume in the fragrance storage body is set to be smaller than the total spatial volume in which the spatial volume in the air inflow member and the spatial volume in the fragrance component discharge member are combined.

  Therefore, even if the temperature of the passenger compartment increases when the vehicle is left unattended, and the volume of air in the fragrance containing body containing a high concentration fragrance component expands, the movement of the air in the fragrance containing body is the air inflow member. And within the area of the fragrance component release member. Thereby, the concentration of the fragrance component in the air inflow member and the fragrance component discharge member gradually decreases as the position becomes farther from the fragrance container. In the vicinity of the end of the air inflow member and the fragrance component discharge member on the side connected to the air conditioner, the fragrance component changes at a low constant concentration. Further, since the volumes of the internal spaces of the air inflow member and the fragrance component releasing member are small, even if the fragrance component leaks from the end portion, the threshold of olfaction is not reached.

  Therefore, it is suppressed that the air containing the fragrance component in the fragrance storage body leaks into the vehicle interior via the air conditioner.

  From the above, it is possible to suppress unnecessary release of the fragrance component when not in use with a simple structure.

It is sectional drawing which shows the fragrance device for motor vehicles and air conditioner which concern on embodiment of this invention. It is sectional drawing which shows the vicinity of the fragrance | flavor storage body of FIG. FIG. 3 is an enlarged perspective view of the cartridge of FIG. 2. It is sectional drawing which shows the fragrance | flavor storage body and air inflow member which concern on embodiment of this invention. It is a graph which shows the concentration gradient of the fragrance | flavor component of each site | part in the fragrance | flavor storage body and air inflow member which concern on embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, an instrument panel 1 is disposed in a passenger compartment of an automobile. 5 is disposed.

  In the air conditioner 3, a plurality of components are arranged inside the housing 7. Specifically, a filter 9 is disposed at the center in the front-rear direction within the housing 7, the vehicle front side of the filter 9 is defined as a high static pressure chamber 11, and the vehicle rear side of the filter 9 is low. A static pressure chamber 13 is defined. A rotatable blower fan 15 is disposed in the high static pressure chamber 11, and air is taken into the air conditioner 3 as the blower fan 15 rotates. Further, in the low static pressure chamber 13, an air guide member 17 having a curved side view is disposed on the rear side of the filter 9 in the vicinity of the filter 9. A rotatable door 19 is pivotally supported by a support pin 21 in the vicinity of the upper end of the air guide member 17. A heater core 25 is disposed between the support pin 21 and the rear bottom surface 23 of the housing 7. An air outlet 27 for blowing conditioned air into the vehicle compartment is formed at the rear end of the low static pressure chamber 13, and a shutter 29 that can be opened and closed is provided at the air outlet 27. In addition, a connection pipe 33 is provided on the upper surface 31 of the housing 7 that defines the high static pressure chamber 11 and projects upward. A connecting pipe 35 that protrudes obliquely rearward is provided in the vicinity of the air outlet 27 in the upper surface 31 of the housing 7 that defines the low static pressure chamber 13.

  In the air conditioner 3 having the configuration described above, the air A is taken into the air conditioner 3 by the rotation of the blower fan 15, and this air A passes from the high static pressure chamber 11 to the low static pressure chamber 13 through the filter 9. Sent. Here, in FIG. 1, since the door 19 is in a closed state, the air A that has passed through the filter 9 does not pass through the heater core 25 by the air guide member 17, as indicated by the solid line arrow. 13 is blown out from the outlet 27 to the passenger compartment. On the other hand, when the door 19 is opened, the air A enters between the upper end 17a of the air guide member 17 and the support pin 21, and the low static pressure chamber 13 passes through the heater core 25 as indicated by the broken arrow. Air A blows out from the street outlet 27 into the passenger compartment. Air A (shown by broken line arrows) that has passed through the heater core 25 is hot air, and air A (shown by solid line arrows) that has not passed through the heater core 25 is cold air.

  On the other hand, the fragrance device 5 is arranged above the air conditioner 3. As shown in FIGS. 1 and 2, the fragrance device 5 includes a fragrance 57, a fragrance container 41, an air inflow tube 43 (air inflow portion), an fragrance component discharge tube 45 (fragrance component discharge portion), and an air inflow member. 47 and a fragrance component releasing member 49.

  The fragrance 57 is held inside the fragrance container 41 in a state where a liquid fragrance component is supported on a nonwoven fabric or porous particles.

  The fragrance storage body 41 includes a cartridge 51 and a holding case 53.

  As shown in FIGS. 1 to 3, the cartridge 51 includes a storage case 55 and a fragrance 57 held inside the storage case 55. The storage case 55 is made of resin, and is integrally formed from a bottom portion 59 disposed on the lower side and a holding portion 61 that covers the upper side of the bottom portion 59. The bottom 59 is provided with a plurality of openings 63, and an outer peripheral flange 65 extending in the outer peripheral direction is formed on the periphery. A fragrance 57 is accommodated in the storage case 55. When the air A flows into the fragrance 57 from the opening 63 of the bottom 59, the fragrance component in the fragrance is released from the opening 63 of the bottom 59 together with the air A. The opening 63 is formed between the crosspieces 67 provided on the bottom 59.

  The holding case 53 is made of resin, and holding pieces 73 extend upward from the outer periphery of the flat bottom surface 71. A stepped portion 75 is formed on the holding piece 73, and a sealing material 77 for holding airtightness is placed on the stepped portion 75. Further, a concave groove 79 is formed on the inner peripheral side of the holding piece 73, and an outer peripheral flange 65 of the storage case 55 of the cartridge 51 is fitted into the concave groove 79. Further, on the bottom surface 71, a cylindrical air inflow pipe 43 (air inflow part) and an aroma component discharge pipe 45 (fragrance component discharge part) respectively extend downward. A lower end portion of the air inflow pipe 43 is formed in a large diameter portion 81 bulging radially outward, and a lower end portion of the fragrance component discharge pipe 45 is also formed in a large diameter portion 83 bulging radially outward. Is formed.

  Here, as shown in FIG. 2, the first space portion 91 is defined by the bottom surface 71 of the holding case 53, the holding piece 73, and the bottom portion 59 of the cartridge 51. Further, the insides of the air inflow pipe 43 and the fragrance component discharge pipe 45 are formed in a second space portion 93 and a third space portion 95, respectively. In the present embodiment, the combined volume of the first to third space portions 91, 93, 95 is referred to as a space volume 97 in the fragrance storage body.

  Furthermore, as shown in FIGS. 1, 2, and 4, the air inflow member 47 is a long pipe and has flexibility. The upper end is formed in the holding case side insertion portion 101, and the lower end is formed in the air conditioner side insertion portion 103. The holding case side insertion portion 101 is inserted and held in the air inflow pipe 43 of the holding case 53, and the air conditioner side insertion portion 103 is inserted and held in the connection pipe 33 of the air conditioner 3. . As shown in FIG. 4, the housing 7 of the air conditioner 3 is formed with an insertion hole for a connection pipe, and the lower end portion of the connection pipe 33 is inserted into the insertion hole, so that a large-diameter locking portion is formed. The connection pipe 33 is held in the insertion hole by 105. A large diameter portion 107 is also formed at the upper end of the connecting pipe 33.

  Here, as shown in FIG. 4, the space volume in the air inflow member 47 refers to the space volume in the range from the lower end 109 of the air inflow tube 43 of the holding case 53 to the upper end 111 of the connection tube 33. . Note that the lower end 104 of the connection pipe 33 coincides with the lower end of the locking portion 105.

  Moreover, as shown in FIG. 1, the fragrance component discharge | release member 49 is elongate piping, and has flexibility. The upper end is formed in the holding case side insertion part 121, and the lower end is formed in the air conditioner side insertion part 123 (connection end part). The holding case side insertion part 121 is inserted and held in the fragrance component discharge pipe 45 of the holding case 53, and the air conditioner side insertion part 123 is inserted and held in the connection pipe 35 of the air conditioner 3. Yes. Here, as shown in FIG. 1, the spatial volume in the fragrance component releasing member refers to the spatial volume in the range from the lower end 125 of the fragrance component releasing pipe 45 of the holding case 53 to the upper end 127 of the connecting pipe 35. To do.

  Next, the flow of air in the automobile fragrance device according to the present embodiment will be described.

  As shown in FIG. 1, when the blower fan 15 rotates, the air A enters the air inflow member 47 from the high static pressure chamber 11 through the connection pipe 33. The air A passes through the air inflow member 47 and then flows into the fragrance storage body 41 through the air inflow pipe 43. Specifically, after entering the first space portion 91 from the air inflow pipe 43, the fragrance 57 is passed through the fragrance component discharge pipe 45 and the fragrance component discharge member 49 in the low static pressure chamber 13 of the air conditioner 3. It is discharged into the vicinity of the air outlet 27. And the air A containing the fragrance component is blown out from the air outlet 27 of the air conditioner 3 toward the vehicle interior. Thus, since a differential pressure is formed between the high static pressure chamber 11 and the low static pressure chamber 13, a flow of air A is formed from the high static pressure chamber 11 toward the low static pressure chamber 13. The

  Moreover, as shown in FIG. 1, since the fragrance device 5 and the air conditioner 3 are disposed inside the instrument panel 1, the temperature may rise due to solar radiation when the vehicle is left unattended. When the temperature rises, the air in the inner space of the fragrance containing body 41 expands and the fragrance 57 volatilizes. Therefore, the air inflow member 47 and the fragrance component discharge member 49 contain the aforementioned expanded air and volatile components. The air moves. That is, the amount of increase / decrease in the amount of gas combined with the expanded air in the internal space of the fragrance storage body 41 and the volatile component of the fragrance is the increase / decrease in the amount of gas inside the air inflow member 47 and the fragrance component release member 49 Become.

  If the difference between the atmospheric temperature inside the instrument panel 1 when the vehicle is left under the hot sun and the temperature inside the vehicle compartment when the air conditioner 3 is used is 50 ° C., the inner space of the fragrance container 41 The amount of increase / decrease of the gas amount of the expanded air and the volatile component of the fragrance is about 150%. Further, when the fragrance component generally used at normal temperature is kept at the temperature when the vehicle is left under the hot sun, the vapor pressure becomes about 0.1 atm. Therefore, the first to third space portions 91 and 93 are used. 95% of the space volume 97 including the space volume of 95 is a volatile aroma component.

  Next, the concentration of the fragrance component in each part of the internal space of the fragrance storage body 41, the air inflow member 47, and the connection pipe 33 will be described with reference to FIG.

  As shown in FIG. 5, air containing a high concentration of the fragrance component is accommodated in the internal space of the fragrance storage body 41. Then, the concentration gradually decreases from the vicinity of P1 of the graph corresponding to the bottom surface 71, and the concentration gradient decreases linearly until reaching the vicinity of P2 corresponding to the lower end 104 of the connection pipe 33. And in the downward direction from P2, it changes with a low constant density. In addition, since the volume of the internal space of the air inflow member 47 is small, even if it is a case where a fragrance component leaks from the connection pipe 33, it does not reach the threshold of olfaction.

  Below, the effect by the fragrance device for motor vehicles concerning this embodiment is demonstrated.

  (1) The automotive fragrance device 5 according to the present embodiment includes a fragrance storage body 41 that stores a fragrance 57, and air that is provided in the fragrance storage body 41 and communicates with the inside of the fragrance storage body 41. An inflow pipe 43 (air inflow portion), an fragrance component discharge pipe 45 (fragrance component discharge portion) provided in the fragrance storage body 41 and communicating with the inside of the fragrance storage body 41, and the fragrance storage body 41. The air inflow pipe 43 and the air conditioner 3 of the automobile are connected, the air inflow member 47 capable of supplying the air A from the air conditioner 3 to the air inflow pipe 43, and the fragrance component of the fragrance container 41. The discharge pipe 45 and the air conditioner 3 of the automobile are connected to each other, and an aroma component discharge member 49 capable of supplying air A mixed with aroma components from the aroma component discharge pipe 45 to the air conditioner 3 is provided.

  The spatial volume in the fragrance storage body 41 is set to be smaller than the total spatial volume that is the sum of the spatial volume in the air inflow member 47 and the spatial volume in the fragrance component discharge member 49.

  Therefore, even when the temperature of the passenger compartment rises when the vehicle is left and the volume of the air in the fragrance storage body 41 expands, the movement of the air in the fragrance storage body 41 causes the movement of the air in the air inflow member 47 and the fragrance. It stops only inside the component discharge member 49. Therefore, the air A containing the fragrance component in the fragrance storage body 41 is suppressed from leaking into the vehicle interior via the air conditioner 3.

  As described above, the car fragrance device according to the conventional example requires the door and the driving means, but in the present embodiment, these members are unnecessary. For this reason, unnecessary discharge | release of the aromatic component at the time of non-use can be suppressed with simple structure and cheap cost.

  (2) The fragrance component releasing member 49 is formed in a long pipe.

  Therefore, the size of the internal space of the fragrance component releasing member 49 can be appropriately changed by adjusting the length of the pipe. As described above, by adjusting the length of the fragrance component releasing member 49, it is possible to efficiently control unnecessary release of the fragrance component when the vehicle is left.

  (3) The air conditioner side insertion portion 123 (connection end portion) connected to the air conditioner 3 in the fragrance component releasing member 49 is connected to the vicinity of the air outlet 27 in the air conditioner 3.

  For example, a shutter is pivotally supported at the air outlet 27 so that the air can be opened and closed, and the amount of air blown from the air outlet 27 into the vehicle compartment can be controlled by opening and closing the shutter. Therefore, by connecting the air conditioner side insertion portion 123 (connection end) to the vicinity of the air outlet 27 in the air conditioner 3, the amount of air A containing fragrance components released into the passenger compartment is efficiently controlled. can do.

3 Air Conditioning Device 5 Fragrance Device 41 Fragrance Storage Body 43 Air Inflow Pipe (Air Inflow Portion)
45 Fragrance component release pipe (fragrance component release part)
47 Air inflow member 49 Fragrance component release member 57 Air freshener 123 Air conditioner side insertion part (connection end part)

Claims (3)

A fragrance container containing the fragrance, and
An air inflow portion provided in the fragrance storage body and communicating with the inside of the fragrance storage body;
A fragrance component releasing portion provided in the fragrance storage body and communicating with the inside of the fragrance storage body;
An air inflow member that connects the air inflow portion of the fragrance storage body and an air conditioner of an automobile, and that can supply air from the air conditioner to the air inflow portion;
A fragrance component release member that connects the fragrance component discharge portion of the fragrance storage body and an air conditioner of an automobile, and is capable of supplying air mixed with the fragrance component from the fragrance component discharge portion to the air conditioner,
An automotive fragrance device, wherein a space volume in the fragrance storage body is set to be smaller than a total space volume obtained by combining a space volume in the air inflow member and a space volume in a fragrance component discharge member.   The said fragrance component discharge | release member is formed in elongate piping, The fragrance apparatus for motor vehicles of Claim 1 characterized by the above-mentioned.   The fragrance device for automobiles according to claim 1, wherein a connection end portion of the fragrance component releasing member connected to the air conditioner is connected to a vicinity of the air outlet in the air conditioner.

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