JP2005343425A - Vehicular clean gas supplying device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve a clean gas supplying device capable of improving comfortability by being arranged in a vehicle so as to restrain rise of a temperature of an air sending pipe. <P>SOLUTION: This vehicular clean gas supplying device is provided with a spraying nozzle 25 for spraying clean gas to an occupant; and a clean gas supplying device body 21 for guiding cabin inner air, generating the clean gas, and supplying the clean gas into the spraying nozzle 25. An air sending duct 13 connecting a rear seat air conditioning unit 12 and an outlet 15 is mounted on the vehicle, the air sending pipe 22 connecting the spraying nozzle 25 and the clean gas supplying device body 21 is provided, and the air sending pipe 22 is arranged on an outer peripheral wall of the air sending duct 13. Thus, comfortability can be improved. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vehicle clean gas supply device including a blowout nozzle that blows clean gas toward an occupant and a clean gas supply device body that guides the air in the vehicle interior to generate clean gas and supplies the clean gas to the blowout nozzle. In particular, the present invention relates to the arrangement of an air supply pipe that connects the blowing nozzle and the main body of the clean gas supply device.

  2. Description of the Related Art Conventionally, as this type of vehicle clean gas supply device, for example, as shown in Patent Document 1, a device that supplies high concentration oxygen as fresh air to a driver or a passenger is known. Specifically, a clean gas supply device main body that adsorbs and desorbs carbon monoxide, carbon dioxide, and nitrogen in vehicle interior air, a suction pipe that introduces vehicle interior air to the clean gas supply device main body, and a clean gas supply device The exhaust pipe that discharges carbon monoxide, carbon dioxide, and nitrogen gas separated by the main body to the outside of the passenger compartment, and the remaining clean gas from which carbon monoxide, carbon dioxide, and nitrogen are separated into the passenger compartment through the air supply pipe And a discharge nozzle for discharging.

Then, the dirty air in the passenger compartment is guided to the clean gas supply device main body, and the impure gas such as carbon monoxide, carbon dioxide, and nitrogen is separated and discharged out of the passenger compartment, and the clean gas generated as a result of the separation of the impure gas. Since the oxygen-enriched air is supplied into the vehicle interior, an increase in impure gas in the vehicle interior is suppressed (for example, see Patent Document 1).
JP-A-5-277327

  However, according to the configuration of Patent Document 1, the clean gas supply device main body is mounted in the trunk room of the vehicle and is configured to supply pure gas to the air supply pipe disposed in the vehicle interior. After parking under the hot sun, the clean gas supply device main body and the air pipe may be warmed and the clean gas warmed from the blowout nozzle may be blown out toward the passenger. Thereby, there exists a problem which impairs comfort.

  In view of the above, an object of the present invention is to provide a clean gas supply device that can improve comfort by being disposed in a vehicle so as to suppress an increase in temperature of an air supply pipe. There is.

In order to achieve the above object, the technical means according to claims 1 to 7 are employed. That is, according to the first aspect of the present invention, the clean nozzle is used for blowing clean gas toward the driver or passenger, and the clean air is generated by guiding the air in the passenger compartment to the clean nozzle. A clean gas supply device for a vehicle comprising a clean gas supply device main body (21) for supplying
An air-conditioning unit (10, 12) that sends air-conditioning air that is blown out to an air outlet provided in the passenger compartment, and an air-supply duct (13) that connects the air-conditioning unit (10, 12) and the air outlet. An air supply pipe (22) that is mounted on a vehicle and connects the blow nozzle (25) and the clean gas supply device main body (21) is provided, and the air supply pipe (22) is an air conditioner in which the clean gas flowing in the pipe is blown out. It is characterized by being integrated with the air supply duct (13) so as to exchange heat by wind.

  According to invention of Claim 1, the blowing temperature of the clean gas blown from a blowing nozzle (25) can be reduced. Thereby, it is possible to easily improve comfort without discomfort.

  The invention according to claim 2 is characterized in that the air supply pipe (22) is disposed inside the air supply duct (13). According to the second aspect of the present invention, specifically, the temperature of the clean gas flowing in the pipe of the air supply pipe (22) can be cooled by the conditioned air that is blown out. Thereby, the blowing temperature of the clean gas blown from the blowing nozzle (25) can be lowered.

  The invention according to claim 3 is characterized in that the air supply pipe (22) is disposed on the outer peripheral wall of the air supply duct (13). According to the third aspect of the present invention, the heat exchange efficiency is slightly lower than that of the second aspect described above, but the temperature of the clean gas flowing in the pipe of the air supply pipe (22) is cooled by the blown-controlled conditioned air. be able to.

  In the invention according to claim 4, the clean gas supply device main body (21) is configured to supply clean gas blown out from the blowing nozzle (25) toward the occupant based on the air conditioning operation mode of the air conditioning unit (10, 12). It is characterized by controlling at least one of the blowout flow rate or gas concentration. According to the fourth aspect of the present invention, for example, when the air supply pipe (22) is warmed, the air conditioning operation mode of the air conditioning unit (10, 12) is operated in the face mode, and the air supply duct (13) is The clean gas can be reliably cooled by sending the air-conditioned air of the cold air whose temperature is adjusted.

  In the invention according to claim 5, the air conditioning unit (10, 12) is a rear seat air conditioning unit (12) for supplying air conditioned air that is blown and controlled to the rear seat occupant, and is a clean gas. It is provided in the vicinity of the supply device main body (21). According to the fifth aspect of the present invention, for example, when the blowing nozzle (25) and the air supply pipe (22) are arranged on the ceiling of the vehicle for the passenger in the rear seat, Since the trachea (22) is warmed, by disposing the air supply pipe (22) integrally with the air supply duct (13), it is possible to prevent unpleasant clean gas from being blown out, thereby obtaining a greater effect. It becomes possible.

  In the invention according to claim 6, the clean gas supply device main body (21) introduces the clean gas generated in the blowing nozzle (25) by guiding the cabin air to enrich oxygen or imparting oxygen to the cabin air. It is a device to supply. According to the sixth aspect of the present invention, in a vehicle having a small space capacity and a high degree of sealing, an oxygen generator of a system for guiding the cabin air and enriching oxygen, or a cabin air such as an oxygen cylinder, for example. It is preferable that it is an oxygen generating device for imparting oxygen to the water.

  In other words, although the oxygen concentration decreases due to the occupant's breathing action and comfort is gradually lost, operating the clean gas supply device body (21) is effective in restoring occupant fatigue and preventing drowsiness, and is uncomfortable. Since the warmed clean gas is not blown out, the comfort can be improved.

  In the invention according to claim 7, the clean gas supply device main body (21) includes an oxygen-enriched film (211) that guides the cabin air to dissolve, diffuse, and desorb to enrich oxygen, and an oxygen-enriched film. It is characterized by comprising air pump means (212) for giving a pressure difference to the passenger compartment air guided through (211). According to the seventh aspect of the present invention, the structure of the clean gas supply device main body (21) can be simply configured, so that the size and weight can be reduced, which is suitable for a vehicle.

  In addition, the code | symbol in the bracket | parenthesis of each said means shows a corresponding relationship with the specific means of embodiment mentioned later.

(First embodiment)
Hereinafter, a vehicle clean gas supply apparatus according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 3. FIG. 1 is a schematic diagram showing an overall configuration of a clean gas supply apparatus 20 configured separately from a vehicle on which air conditioning units 10 and 12 that perform blowout control toward a plurality of blowout ports provided in a vehicle interior are mounted. FIG. 2 is a schematic diagram showing the configuration of the clean gas supply device main body 21. FIG. 3 is an enlarged view and a cross-sectional view showing the arrangement of the air supply tube 22.

  As shown in FIG. 1, the vehicle air conditioner of this embodiment includes a front seat air conditioning unit 10 and a rear seat air conditioning unit 12 mounted on a vehicle, and the front seat air conditioning unit 10 is an instrument in the vehicle interior. Of the lower part of the panel, the rear seat air conditioning unit 12 is disposed in a substantially central portion in the left-right direction of the vehicle. And the ventilation unit 11 is arrange | positioned in the upstream of the ventilation system of the air conditioning unit 10 for front seats.

  In other words, the blower unit 11 is arranged offset from the central part to the passenger seat side in the lower part of the instrument panel in the passenger compartment, and as is well known, the interior air that is the passenger compartment air and the outside air that is the passenger compartment outdoor air are switched and introduced. The inside / outside air switching box (not shown) and an air blower (not shown) that sucks air through the inside / outside air switching box and blows the air to the front seat air conditioning unit 10.

  The inside / outside air switching box is electrically connected to and controlled by an air conditioning control device (not shown), and the intake air guided to the front seat air conditioning unit 10 is either inside air or outside air based on the inside / outside air mode. Is controlled to select.

  The air conditioning unit 10 for the front seat is integrally accommodated in a common air conditioning case with a cooling heat exchanger (not shown) for cooling air and a heating heat exchanger (not shown) for heating air. ing. In the air conditioning case, a plurality of blowout openings (not shown) are formed at the ends of the air passages, and the blowout openings are communicated with the blowout openings provided in the vehicle (see FIG. (Not shown).

  Furthermore, in the air conditioning case, a temperature adjusting means for adjusting the temperature of the air blown into the passenger compartment by adjusting the air volume ratio of the cooled cold air and the heated hot air to the downstream side of the heat exchanger. (Not shown) and a control door (not shown) for opening and closing the outlet opening is provided upstream of the outlet opening. The temperature adjusting means and the control door are electrically connected to and controlled by an air conditioning control device (not shown), the temperature adjusting means is controlled based on the set temperature, and the control door is based on the blowing mode. Be controlled.

  This blowing mode is a face mode that blows air-conditioned air that is temperature-controlled toward the upper body of the occupant, a bi-level mode that blows air-conditioned air toward the upper body of the occupant and the feet of the occupant, and air conditioned air toward the feet of the occupant. There are a foot mode that blows air, a foot / defroster mode that blows conditioned air toward the feet of the passenger and the front glass, and a defroster mode that blows conditioned air toward the front glass.

  On the other hand, the rear seat air conditioning unit 12 is configured in the same manner as the front seat air conditioning unit 10 and heats the air and a cooling heat exchanger (not shown) that cools the air in one common air conditioning case. A heating heat exchanger (not shown) is integrally accommodated. In the air conditioning case, a plurality of blowout openings (not shown) are formed at the ends of the air passages, and ducts (such that these blowout openings communicate with a blowout port provided in the vehicle). (Not shown).

  Incidentally, in this embodiment, in order to blow out the air-conditioned air whose temperature is adjusted toward the upper body of the passenger seated in the rear seat, a blow-off opening (not shown) is formed in the air-conditioning case, and the ceiling of the vehicle The part is provided with an air outlet 15 and an air supply duct 13 in which the air outlet 15 communicates with an air outlet (not shown). The air supply duct 13 is formed by molding a resin material, and is arranged from the trunk room of the vehicle to the ceiling portion. When the blowout mode is the face mode, the temperature-controlled conditioned air is sent toward the blowout port 15. It is something to be worried about.

  Next, the clean gas supply device 20 is a device that guides the passenger compartment air to generate clean gas, and blows out the clean gas toward the occupant. The clean gas supply device main body 21, the air supply pipe 22, the blowout nozzle 25, The living body information detection means 30 and the clean gas supply control device 40 are configured. The blowout nozzle 25 is provided on the ceiling of the vehicle so as to blow clean gas toward the vicinity of the occupant's face, and is connected to the clean gas supply device main body 21 via the air supply pipe 22.

  The clean gas supply device main body 21 is an oxygen-enriched membrane generator that guides the passenger compartment air, generates high-concentration oxygen as clean gas, and supplies the oxygen to the blowing nozzle 25. The clean gas supply device main body 21 is installed in a trunk room at the rear of the vehicle, and is configured to communicate with the vehicle interior via a suction pipe (not shown) so as to suck air in the vehicle interior.

  As shown in FIG. 2, the overall configuration includes an oxygen-enriched film 211, a vacuum pump 212 that is an air pump means, a suction filter 213, and a blower 214. The oxygen-enriched film 211 is composed of a single module or a plurality of modules, and one side of the oxygen-enriched film 211 is disposed so as to communicate with the suction side of the vacuum pump 212 through a communication pipe 212a. In the figure, 212b is a discharge pipe, and its downstream end is connected to the air supply pipe 22.

  The blower 214 is a ventilation blower that circulates fresh vehicle interior air to the other side of the oxygen-enriched film 211, and the suction filter 213 is a filter that removes dust contained in the vehicle interior air. When the oxygen pump 211 is operated to reduce the pressure on one side to a vacuum state, the air on the other side is sucked by the vacuum pump 212 due to the pressure difference. At this time, molecules on the other side pass through the oxygen-enriched film 211 to dissolve, diffuse, and leave.

  This is because nitrogen in ordinary air is about 79%, but oxygen is separated from the oxygen-enriched film 211 because the speed of passing through the oxygen-enriched film 211 is about 2.5 times faster than nitrogen. The air generated sometimes has an oxygen concentration higher than the composition of the air before passing through the oxygen-enriched film 211. As a result, high concentration oxygen of about 30% can be supplied from the discharge pipe 212b to the blowing nozzle 25. The vacuum pump 212 and the blower 214 are electrically connected to the clean gas supply control device 40 and controlled.

  The clean gas supply control device 40 is electrically connected to an air conditioning control device (not shown) so as to input an air conditioning operation mode of the vehicle air conditioning device, and detects biological information of an occupant. The means 30 is electrically connected to input biological information. Incidentally, the clean gas supply control device 40 controls the rotational flow rate of the vacuum pump 212 based on the air conditioning operation mode and the biological information of the air conditioning units 10 and 12 and the flow rate of the clean gas blown from the blow nozzle 25. ing.

  This is because, for example, when the wind speed of the conditioned air received near the occupant's face is high, the clean gas blown from the blow nozzle 25 is prevented from being diffused by the air flow of the conditioned air. The gas flow rate is increased. Thereby, it is possible to prevent the reachability of the clean gas (oxygen) to the occupant.

  Here, the biological information detection means 30 for detecting the physical condition of the occupant is composed of a heart rate sensor having an electrode structure, and is attached to a position where the steering wheel of the driver's seat is gripped, and directly from the palm of the driver (electrocardiogram ( This is a sensor for detecting a heartbeat) state. Then, the driver's heart rate and heart rate interval variation detected by the heart rate sensor are obtained by the clean gas supply control device 40, and compared with a preset judgment value inputted and stored when the driver is stable. The state level is determined, and the rotation speed of the vacuum pump 212 is controlled based on this level.

  Next, the air supply pipe 22, which is a main part of the present invention, is formed of a metal pipe that connects the blowout nozzle 25 and the discharge pipe 212b, and a part of the air supply duct 13 is disposed on the ceiling of the vehicle. It is arranged on the wall. That is, as shown in FIGS. 3A and 3B, heat exchange is performed between the temperature-controlled conditioned air flowing in the air supply duct 13 and the clean gas flowing in the air supply pipe 22. Yes.

  This is because the air supply pipe 22 and the clean gas supply device main body 21 are warmed when the vehicle is stopped under the hot sun, but the rear seat air conditioning unit 12 is operated in the face mode, so that the inside of the air supply pipe 22 Clean gas is cooled by temperature-controlled air conditioning. Thereby, it can prevent that the clean gas warmed from the blowing nozzle 25 blows off toward a passenger | crew.

  In the present embodiment, the biological information detection means 30 is disposed on the steering for only the driver. However, the present invention is not limited to this, and the electrocardiogram (heartbeat) state of the passenger who rides in the passenger seat or the rear seat is directly measured. It may be a heart rate sensor that detects the time. Further, in the present embodiment, the blowing nozzle 25 is disposed on the ceiling of the vehicle toward the occupant riding in the rear seat. However, the present invention is not limited to this, so that clean gas is blown out to the driver seat and the passenger seat in the front seat. It may be arranged.

  Next, the operation of the vehicle clean gas supply apparatus having the above configuration will be described. First, when an operation switch (not shown) of the clean gas supply device 20 is operated, the rotation speed of the vacuum pump 212 is controlled based on the operating state of the air conditioning units 10 and 12 and biological information. Specifically, the rotation speed of the vacuum pump 212 is varied so that it is Hi when the blowing mode is the face mode, Me when the blowing mode is the Bi mode, and Lo when the foot mode is the foot mode. The number of revolutions is further varied according to the detected physical condition of the occupant, that is, the fatigue level.

  By the way, when the clean gas supply device 20 is operated when the vehicle is parked under the hot sun and the interior of the vehicle is warmed, the air conditioning unit 12 is operated in the face mode at this time, so that it is disposed in the air duct 13. Since the air supply pipe 22 thus cooled is cooled by the temperature-controlled conditioned air, the clean gas flowing through the air supply pipe 22 is cooled, and the clean gas warmed from the blowout nozzle 25 is blown out toward the occupant. Can be prevented. Thereby, it is possible to easily improve comfort without discomfort.

  According to the vehicle clean gas supply device according to the embodiment described above, the rear seat air conditioning unit 12 and the air supply duct 13 connecting the rear seat air conditioning unit 12 and the outlet 15 are mounted on the vehicle, and the vehicle is cleaned. The air supply pipe 22 configured in the gas supply device 20 is configured to be integrated with the air supply duct 13 so that the heat exchange of the clean gas flowing in the pipe is performed by the air-conditioning air controlled to be blown out. The gas blowing temperature can be lowered. Thereby, it is possible to easily improve comfort without discomfort.

  Specifically, by disposing a part of the air supply pipe 22 on the outer peripheral wall of the air supply duct 13, the clean gas flowing in the air supply pipe 22 can be cooled by the temperature-controlled conditioned air. In addition, the clean gas supply device 20 is controlled based on the operating state of the rear seat air conditioning unit 12, so that when the vehicle is warmed, the operating state of the rear seat air conditioning unit 12 is the face mode. The clean gas can be reliably cooled by supplying the temperature-controlled cold conditioned air to the air supply duct 13.

  Further, when the blowout nozzle 25 and the air supply pipe 22 are disposed on the vehicle ceiling for the rear seat occupant as in the present embodiment, the air supply pipe 22 is warmed during parking in the hot sun. By disposing the air supply pipe 22 in the duct 13, it is possible to prevent unpleasant clean gas from being blown out, thereby obtaining a greater effect.

  Further, the clean gas supply device main body 21 guides the vehicle interior air to dissolve, diffuse, and desorb the oxygen enriched film 211 that enriches oxygen, and the vehicle interior air guided through the oxygen enriched film 211. By constituting the vacuum pump 212 that gives a pressure difference, in the vehicle, the oxygen concentration is reduced due to the breathing action of the occupant and the comfort is gradually lost. However, the occupant is efficiently operated by operating the clean gas supply device main body 21. It is effective in relieving fatigue and preventing drowsiness. Furthermore, since the structure of the clean gas supply device main body 21 can be configured simply, it can be reduced in size and weight, which is suitable for vehicles.

(Second Embodiment)
In the first embodiment described above, a part of the air supply pipe 22 is disposed on the outer peripheral wall of the air supply duct 13. However, the present invention is not limited to this, and as shown in FIG. 223 may be provided. According to this, the clean gas flowing through the air supply pipe 22 can be cooled by the conditioned air that is blown out. Thereby, the blowing temperature of the clean gas blown from the blowing nozzle 25 can be further reduced.

(Other embodiments)
In the above embodiment, the air supply pipe 22 is integrated with the air supply duct 13 connected to the rear seat air conditioning unit 12, but may be integrated with the air supply duct connected to the front seat air conditioning unit 10. good. However, at this time, the clean gas supply device main body 21 may be provided in the vicinity of the front seat air conditioning unit 10.

  Further, in the above embodiment, the clean gas supply device main body 21 is guided through the oxygen-enriched film 211 and the oxygen-enriched film 211 that lead the vehicle cabin air to be dissolved, diffused, and separated to enrich oxygen. A high-concentration oxygen was generated as a clean gas by forming a vacuum pump 212 that gives a pressure difference to the air in the passenger compartment. However, the present invention is not limited to this. It may be a membrane separation type clean gas supply device that separates gas by pressure filtration or a PSA (Pressure Swing Adsorption) type clean gas supply device that separates the gas by utilizing the difference in adsorption speed with respect to the adsorbent.

  In addition to the above-mentioned method of separating the gas and enriching oxygen, it is generated in the cabin air with a chemical reaction gas generator or oxygen cylinder that generates oxygen by reacting water with a chemical substance containing oxygen. A clean gas supply device 20 that applies oxygen may be used. According to this, compared with the system enriched with oxygen, for example, when the vehicle air conditioner is operating in the inside air mode, the oxygen concentration of the cabin air gradually decreases, but it is generated by adding oxygen. If the apparatus supplies clean gas to the blowing nozzle 25, the oxygen concentration can be prevented from decreasing.

It is a mimetic diagram showing the whole clean gas supply device 20 carried in vehicles in a 1st embodiment of the present invention. It is a schematic diagram which shows the structure of the clean gas supply apparatus main body 21 in 1st Embodiment of this invention. (A) is the A section enlarged view shown in Drawing 1, and (b) is a BB sectional view shown in (a). It is sectional drawing which shows the arrangement | positioning form of the air pipe 22 in 2nd Embodiment of this invention.

Explanation of symbols

10 ... Front seat air conditioning unit (air conditioning unit)
12 ... Rear seat air conditioning unit (air conditioning unit)
DESCRIPTION OF SYMBOLS 13 ... Air supply duct 21 ... Clean gas supply apparatus main body 22 ... Air supply pipe 25 ... Blowing nozzle 211 ... Oxygen enriched film 212 ... Vacuum pump (air pump means)

Claims (7)

A blowout nozzle (25) that blows clean gas toward a driver or a passenger, and a clean gas supply device main body (21) that guides the air in the passenger compartment to generate clean gas and supplies the clean gas to the blowout nozzle (25). In a vehicle clean gas supply device comprising:
Air-conditioning unit (10, 12) for supplying conditioned air blown to an outlet provided in the passenger compartment, and an air-supply duct (13) for connecting the air-conditioning unit (10, 12) and the outlet Is mounted on the vehicle,
An air supply pipe (22) for connecting the blowing nozzle (25) and the clean gas supply device main body (21) is provided,
The air supply pipe (22) is configured to be integrated with the air supply duct (13) so as to exchange heat with clean air flowing in the pipe by air-conditioning air controlled to be blown out.   The vehicle clean gas supply device according to claim 1, wherein the air supply pipe (22) is disposed inside the air supply duct (13).   The clean gas supply device for a vehicle according to claim 1, wherein the air supply pipe (22) is disposed on an outer peripheral wall of the air supply duct (13).   The clean gas supply device main body (21) has at least a flow rate or a gas concentration of clean gas blown from the blow nozzle (25) toward the occupant based on the air conditioning operation mode of the air conditioning unit (10, 12). The vehicle clean gas supply device according to any one of claims 1 to 3, wherein any one of the above is controlled.   The air-conditioning unit (10, 12) is a rear-seat air-conditioning unit (12) for supplying air-conditioned air that is controlled to blow out conditioned air toward the rear-seat passengers. The vehicle clean gas supply device according to any one of claims 1 to 4, wherein the vehicle clean gas supply device is provided in the vicinity.   The said clean gas supply apparatus main body (21) is an apparatus which supplies the clean gas produced | generated to the said blower nozzle (25) by introducing vehicle interior air, enriching oxygen, or providing oxygen to vehicle interior air. The vehicle clean gas supply device according to any one of claims 1 to 5, wherein the vehicle clean gas supply device is characterized by the following.   The clean gas supply device main body (21) is guided through the oxygen-enriched film (211) that guides the cabin air to dissolve, diffuse, and desorb to enrich oxygen, and the oxygen-enriched film (211). The vehicle clean gas supply device according to any one of claims 1 to 6, characterized by comprising air pump means (212) for applying a pressure difference to the air in the passenger compartment.

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