JP4396393B2 - Air conditioner for vehicles - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a vehicle air conditioner including an air conditioning unit that performs blowout control toward a plurality of air outlets provided in a vehicle interior, and in particular, clean gas is supplied to the vehicle interior when the vehicle interior is air-conditioned. The present invention relates to control of a supplied clean gas supply device.

  2. Description of the Related Art Conventionally, as this type of clean gas supply device mounted on a vehicle, for example, as shown in Patent Document 1, a device that supplies 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, in order to blow out clean gas having an oxygen concentration that is comfortable for the human body onto the occupant's face, the blowing nozzle does not interfere with the field of view of the occupant and the nose of the occupant It is necessary to install so that the distance may be within the range of 3 cm to 5 cm. In order to easily arrange the blowout nozzle within a predetermined range, for example, if it is configured as an adjustable hand-free type, the troublesome installation of the blowout nozzle at a predetermined position and the structure of its components are complicated. There's a problem.

  Furthermore, when the air-conditioned air conditioned from the air outlet of the air conditioner is blown toward the occupant's face when the vehicle air conditioner mounted on the vehicle is operating, the blowing nozzle is set to the predetermined distance described above. Even if it has installed in the range which has this, the clean gas blown from a blowing nozzle will be spread | diffused by the airflow of an air conditioning wind, and there exists a problem which the reachability of the clean gas (oxygen) to a passenger | crew falls.

  Accordingly, an object of the present invention is to take the above-described points into consideration, and by configuring the clean gas supply device to be controlled according to the operation of the vehicle air conditioner, the reach of the clean gas to the occupant is reduced. It is in providing the vehicle air conditioner which can prevent doing.

In order to achieve the above object, the technical means described in the following claims are employed. That is, according to the first aspect of the present invention, a plurality of outlets provided in the vehicle interior based on the air-conditioning operation mode for the conditioned air that is mounted in the vehicle interior and that is air-conditioned by guiding the air outside the vehicle interior or the air in the vehicle interior. In the vehicle air conditioner comprising the air conditioning unit (10) for controlling the blowout toward the
The air-conditioning unit (10) is configured separately from the air-conditioning unit (10), and has a blow-out nozzle (25) that blows clean gas toward the driver or passenger. The blow-out nozzle (25) A clean gas supply device (20) for supplying clean gas to the vehicle is mounted on the vehicle ,
The clean gas supply device (20) is configured to detect at least either the flow rate or the gas concentration of the clean gas blown from the blow nozzle (25) toward the passenger based on the air conditioning operation mode of the air conditioning unit (10) and the physical condition of the passenger. Control one or the other
The air-conditioning operation mode includes a face mode that blows air-conditioned air 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 a foot mode that blows air-conditioned air toward the feet of the occupant. The air-conditioning air blowing mode that is blown out from the air outlet, the air-conditioning air blowing direction mode that is blown out from the air outlet toward the occupant, and the outside air or vehicle that is led to the air-conditioning unit (10) It consists of indoor and outdoor air modes that select either indoor air,
The clean gas supply device (20) includes at least clean gas blown from the blowing nozzle (25) toward the occupant based on any one of the air conditioning operation modes of the air conditioning unit (10) and the seating position of the occupant. It is characterized by controlling either the blow-out flow rate or the gas concentration .

According to the first aspect of the present invention , the clean gas can be prevented from diffusing by the operation of the vehicle air conditioner, and the clean gas (oxygen) reachability to the occupant from the blowing nozzle (25) for blowing the clean gas. Does not drop. In particular, in the blowing mode, when the mode is blown out toward the occupant's face, for example, in the face mode, the clean gas blown out from the blowing nozzle (25) is set so that either the flow rate or the gas concentration becomes large. In addition, by controlling the clean gas supply device (20), the diffusion of the clean gas near the occupant's face can be reduced, thereby preventing the reach of the clean gas to the occupant .
In addition, the clean gas supply device (20) can be operated according to the operation of the vehicle air conditioner, and the clean gas supply device (20) can be efficiently operated according to the physical condition of the occupant. Therefore, when the occupant's physical condition is poor in a vehicle having a small space capacity and a high degree of sealing, the physical condition can be recovered.
Further, in addition to the air conditioning operation mode, if the distance between the air outlet from which the conditioned air is blown out and the seating position, in other words, the position of the passenger seat, is different, the airflow of the conditioned air received by the passenger is different. Therefore, by controlling the clean gas supply device (20) based on the seating position, it is possible to prevent the reachability of the clean gas to the occupant.

In the second aspect of the invention, in addition to the configuration of the first aspect, the clean gas supply device (20) is configured such that the airflow received in the vicinity of the face of the occupant of the clean gas blown from the blowout nozzle (25) blows out from the blowout port. When the air-conditioning air is smaller than the same airflow, control is performed so that at least one of the flow rate and the gas concentration of the clean gas blown from the blowout nozzle (25) is increased .

According to the second aspect of the invention, in addition to the effect of the first aspect, more specifically, the performance of the clean gas blown out from the blow-off nozzle (25) is increased so that the clean gas to the occupant is increased. It is possible to prevent the reachability from decreasing.

In the invention according to claim 3, the conditioned air that is mounted in the vehicle interior and is air-conditioned by guiding the air outside the vehicle interior or the air in the vehicle interior is directed to a plurality of outlets provided in the vehicle interior based on the air conditioning operation mode. In the vehicle air conditioner including the air conditioning unit (10) for controlling the blowout,
The air-conditioning unit (10) is configured separately from the air-conditioning unit (10), and has a blow-out nozzle (25) that blows clean gas toward the driver or passenger. The blow-out nozzle (25) A clean gas supply device (20) for supplying clean gas to the vehicle is mounted on the vehicle,
The clean gas supply device (20) is configured to detect at least either the flow rate or the gas concentration of the clean gas blown from the blow nozzle (25) toward the passenger based on the air conditioning operation mode of the air conditioning unit (10) and the physical condition of the passenger. Control one or the other
The air-conditioning operation mode includes a face mode that blows air-conditioned air 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 a foot mode that blows air-conditioned air toward the feet of the occupant. The air-conditioning air blowing mode that is blown out from the air outlet, the air-conditioning air blowing direction mode that is blown out from the air outlet toward the occupant, and the outside air or vehicle that is led to the air-conditioning unit (10) It consists of indoor and outdoor air modes that select either indoor air,
The clean gas supply device (20) includes at least a flow rate or a gas concentration of clean gas blown from the blow nozzle (25) toward the occupant based on any one of the air conditioning operation modes of the air conditioning unit (10). Control one of the
When the airflow received in the vicinity of the occupant's face of the clean gas blown from the blowout nozzle (25) is smaller than the same airflow of the conditioned air blown from the blowout port, the clean gas supply device (20) ) Is controlled such that at least one of the flow rate and the gas concentration of the clean gas blown out is increased .

According to the invention described in claim 3, it is possible to prevent the clean gas from being diffused by the operation of the vehicle air conditioner and the reachability of the clean gas (oxygen) to the occupant to be reduced. In particular, in the blowing mode, in the mode that blows out toward the occupant's face, for example, in the face mode, the clean gas blown out from the blowing nozzle (25) is set so that either the flow rate or the gas concentration becomes large. In addition, by controlling the clean gas supply device (20), the diffusion of the clean gas near the occupant's face can be reduced, thereby preventing the reach of the clean gas to the occupant .
In addition, the clean gas supply device (20) can be operated according to the operation of the vehicle air conditioner, and the clean gas supply device (20) can be efficiently operated according to the physical condition of the occupant. Therefore, when the occupant's physical condition is poor in a vehicle having a small space capacity and a high degree of sealing, the physical condition can be recovered.
Specifically, the reachability of the clean gas blown toward the occupant by the airflow of the conditioned air is impaired by the blowing mode, the blowing amount mode, the blowing direction mode, and the inside / outside air mode. Based on the control of the clean gas supply device (20), it is possible to prevent the reachability of the clean gas to the passenger.
More specifically, it is possible to prevent the reachability of the clean gas to the occupant from being lowered by increasing the performance of the clean gas blown from the blow nozzle (25).

In the invention according to claim 4, in addition to the configuration of claim 1, biological information input means (35) for inputting the weight of the occupant is provided, and the clean gas supply device (20) is provided with the biological information input means (35). On the basis of the weight of the occupant input by the control, at least one of the flow rate and the gas concentration of the clean gas blown out from the blowing nozzle (25) toward the occupant is controlled.
According to the fourth aspect of the present invention, since the required oxygen amount varies depending on the body weight, the clean gas supply device (20) may be controlled so that the required oxygen amount is obtained by inputting the weight of the occupant as the biological information. . As a result, it is possible to easily prevent and recover the illness of the passenger.

In the invention according to claim 5, the conditioned air that is mounted in the passenger compartment and is air-conditioned by guiding the outside air or the passenger compartment air is directed to a plurality of outlets provided in the passenger compartment based on the air conditioning operation mode. In the vehicle air conditioner including the air conditioning unit (10) for controlling the blowout,
The air-conditioning unit (10) is configured separately from the air-conditioning unit (10), and has a blow-out nozzle (25) that blows clean gas toward the driver or passenger. The blow-out nozzle (25) A clean gas supply device (20) for supplying clean gas to the vehicle is mounted on the vehicle,
The clean gas supply device (20) is configured to detect at least either the flow rate or the gas concentration of the clean gas blown from the blow nozzle (25) toward the passenger based on the air conditioning operation mode of the air conditioning unit (10) and the physical condition of the passenger. Control one or the other
The air-conditioning operation mode includes a face mode that blows air-conditioned air 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 a foot mode that blows air-conditioned air toward the feet of the occupant. The air-conditioning air blowing mode that is blown out from the air outlet, the air-conditioning air blowing direction mode that is blown out from the air outlet toward the occupant, and the outside air or vehicle that is led to the air-conditioning unit (10) It consists of indoor and outdoor air modes that select either indoor air,
The clean gas supply device (20) includes at least a flow rate or a gas concentration of clean gas blown from the blow nozzle (25) toward the occupant based on any one of the air conditioning operation modes of the air conditioning unit (10). Control one of the
Biological information input means (35) for inputting the weight of the occupant is provided, and the clean gas supply device (20) is provided from the blowing nozzle (25) based on the weight of the occupant input by the biological information input means (35). It is characterized by controlling at least one of the blowing flow rate and the gas concentration of the clean gas blown out toward the passenger .
According to the invention described in claim 5, possible to prevent the arrival of the cleaning gas in the cleaning gas into the passenger is diffused (oxygen) by operation of the vehicle air conditioner is lowered. In particular, in the blowing mode, in the mode that blows out toward the occupant's face, for example, in the face mode, the clean gas blown out from the blowing nozzle (25) is set so that either the flow rate or the gas concentration becomes large. In addition, by controlling the clean gas supply device (20), the diffusion of the clean gas near the occupant's face can be reduced, thereby preventing the reach of the clean gas to the occupant.
In addition, the clean gas supply device (20) can be operated according to the operation of the vehicle air conditioner, and the clean gas supply device (20) can be efficiently operated according to the physical condition of the occupant. Therefore, when the occupant's physical condition is poor in a vehicle having a small space capacity and a high degree of sealing, the physical condition can be recovered.
Specifically, the reachability of the clean gas blown toward the occupant by the airflow of the conditioned air is impaired by the blowing mode, the blowing amount mode, the blowing direction mode, and the inside / outside air mode, and therefore based on any one of these By controlling the clean gas supply device (20), it is possible to prevent the reachability of the clean gas to the passenger.
Furthermore, since the required oxygen amount varies depending on the body weight, the clean gas supply device (20) may be controlled so that the required oxygen amount is obtained by inputting the weight of the occupant as the biological information. As a result, it is possible to easily prevent and recover the illness of the passenger.

In the invention according to claim 6, the clean gas supply device (20) supplies the clean gas generated in the blowing nozzle (25) by guiding the vehicle interior air to enrich oxygen or imparting oxygen to the vehicle interior air. It is the device which performs .
According to the invention described in claim 6, the air-conditioning operation mode of the vehicle air-conditioning system, and cleaning gas supply apparatus is controlled based on the passenger physical condition (20) has a smaller void volume, and high sealing level In a vehicle, it is preferable to use an oxygen generator of a type that enriches oxygen by guiding the air in the vehicle interior, or an oxygen generator that imparts oxygen to the air in the vehicle interior, such as an oxygen cylinder.
In other words, although the oxygen concentration decreases due to the breathing action of the occupant and comfort is gradually lost, efficient operation of the clean gas supply device (20) is effective in recovering the occupant's fatigue and preventing drowsiness. In addition, in the apparatus which supplies the clean gas produced | generated by enriching oxygen to the blowing nozzle (25), for example, when the vehicle air conditioner is operating in the inside air mode, the oxygen concentration in the passenger compartment air gradually decreases. However, if the apparatus supplies clean air generated by applying oxygen to the passenger compartment air to the blowing nozzle (25), a decrease in oxygen concentration can be prevented.

In the invention according to claim 7, the clean gas supply device (20) includes an oxygen-enriched film (211) that guides the cabin air to dissolve, diffuse, and release to enrich oxygen, and an oxygen-enriched film ( 211), and is characterized by comprising air pump means (212) for giving a pressure difference to the air in the passenger compartment guided through 211) .

According to the seventh aspect of the present invention, the structure of the clean gas supply device (20) 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, the vehicle air conditioner in 1st Embodiment of this invention is demonstrated based on FIG. 1 thru | or FIG. FIG. 1 is a schematic diagram showing an overall configuration of a vehicle air conditioner in which a separate clean gas supply device 20 is mounted on a vehicle equipped with an air conditioning unit 10 that controls blowing toward a plurality of air outlets provided in a vehicle interior. is there. FIG. 2 is a schematic diagram showing the configuration of the clean gas supply device main body 21, and FIG. 3 is an explanatory diagram showing the blowing direction of the conditioned air to the passenger in various blowing modes of the air conditioning unit 10.

  As shown in FIG. 1, the ventilation system of the vehicle air conditioner according to the present embodiment is roughly divided into two parts: a blower unit 11 and an air conditioning unit 10. The air blower unit 11 is arranged offset from the center part to the passenger seat side in the lower part of the instrument panel in the vehicle interior, whereas the air conditioning unit 10 is arranged in the vehicle left-right direction in the lower part of the instrument panel in the vehicle interior. It is arrange | positioned in the approximate center part.

  The air blowing unit 11, as is well known, has an inside / outside air switching box (not shown) for switching between the inside air, which is the passenger compartment air, and the outside air, which is outside the passenger compartment. It comprises a blower (not shown) for blowing air. The inside / outside air switching box is controlled by being electrically connected to an air conditioning control device (not shown), and selects either the inside air or the outside air as the intake air guided to the air conditioning unit 10 based on the inside / outside air mode. To be controlled.

  On the other hand, in the air conditioning unit 10, a cooling heat exchanger (not shown) for cooling air and a heating heat exchanger (not shown) for heating air are integrally accommodated in one common air conditioning case. Yes. 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.

  Here, various blowing modes will be described with reference to FIG. FIG. 3 (a) shows the direction of air-conditioning air to the occupant when the air-blowing mode is the face mode. The control door is arranged so that the air-conditioned air temperature-controlled by the temperature adjusting means is blown toward the upper body of the occupant. Be controlled. FIG. 3B shows the blowing direction when the blowing mode is the bi-level mode, and the control door is configured to blow the conditioned air temperature-controlled by the temperature adjusting means toward the upper body of the passenger and the feet of the passenger. Is controlled.

  Further, FIG. 3C shows the blowing direction when the blowing mode is the foot mode, and the control door is controlled so as to blow the conditioned air temperature-controlled by the temperature adjusting means toward the feet of the passenger. In addition to these modes, there are a defroster mode and a foot / defroster mode. In the defroster mode, the control door is controlled so that the conditioned air temperature-controlled by the temperature adjusting means is blown out toward the front glass. In the defroster mode, the control door is controlled so that the conditioned air whose temperature is adjusted by the temperature adjusting means is blown out toward the feet of the passenger and the front glass.

  And the biometric information detection means 30 which detects the biometric information of the passenger | crew who sits in the passenger seat in which the below-mentioned blowing nozzle 25 in which clean gas is blown out is installed, and the biometric information detected by this biometric information detection means 30 are determined. And the biological information control apparatus 40 which is a biological information control means which outputs the determined biological information to the clean gas supply apparatus 20 mentioned later is provided.

  The biological information detection means 30 detects biological information related to the biological state of the occupant directly or indirectly. In the present embodiment, the biological information detection means 30 is constituted by a heart rate sensor having an electrode structure, and a position for gripping the steering of the driver's seat Is a sensor that detects an electrocardiogram (heartbeat) state directly from the palm of the driver.

  In addition, the biological information control device 40 performs a determination process by comparing the biological information detected by the biological information detection unit 30 with a determination value that is input and stored when the driver is stable, thereby determining which level the biological state of the driver is. Is determined and the level is output. Here, the driver's heart rate and heartbeat interval fluctuations detected by the heartbeat sensor as the biological information detection means 30 are obtained, and compared with the above-mentioned determination values, the level of fatigue state is determined. This level is converted into an output signal and electrically connected so as to be output to a clean gas supply control device (not shown) (described later).

  In addition, the level of the fatigue state of the present embodiment relates to the physical condition in the driver's biological information, and in addition to this fatigue state, the level of the sleepy state or car sickness state is determined from the heart rate and heart rate interval fluctuation. It may be determined. Further, in the present embodiment, the biological information detection means 30 is disposed on the steering only for the driver, but the present invention is not limited to this, and the electrocardiogram (heartbeat) state of the passenger who gets on the passenger seat or the rear seat is directly measured. It may be a heart rate sensor that detects at the same time.

  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 passenger. From the clean gas supply device main body 21, the air supply pipe 22, and the blowout nozzle 25. It is configured. The blowing nozzle 25 is provided in the passenger seat 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 of the present embodiment is an oxygen-enriched film generator that guides the passenger compartment air, generates high-concentration oxygen as clean gas, and supplies the oxygen to the blowout nozzle 25. The clean gas supply device main body 21 is installed in a trunk room at the rear of the vehicle, and is composed of an oxygen-enriched film 211, a vacuum pump 212 as air pump means, a suction filter 213, and a blower 214, as shown in FIG. ing. 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 controlled by being electrically connected to a clean gas supply control device (not shown).

  By the way, the vacuum pump 212 is configured to control either the flow rate or the gas concentration of the clean gas based on the air conditioning operation mode of the vehicle air conditioner. That is, the number of rotations of the vacuum pump 212 is controlled based on the blowing mode and the air flow rate mode of the air conditioning unit 10 and is controlled based on the face mode, the bi-level mode, and the foot mode among the blowing modes. ing.

  This prevents the diffusion of the clean gas blown from the blowing nozzle 25 by the airflow of the conditioned air blown toward the passenger. That is, when the speed of the air-conditioning wind received near the occupant's face is high, the clean gas (oxygen) reachability to the occupant is prevented from decreasing by increasing the flow rate of the clean gas blown from the blow nozzle 25. It is a thing.

  More specifically, the air-conditioning control device (not shown) is electrically connected to the clean gas supply control device (not shown) so that at least the operation information such as the blow-out mode and the air flow rate mode among the air-conditioning operation modes is input. And a flow rate control program for controlling the flow rate of the clean gas blown from the blow nozzle 25 based on the blow mode and the blow amount mode.

  FIG. 4 is a flowchart showing a control process of a flow rate control program provided in the clean gas supply control device (not shown), and the operation of the clean gas supply device 20 will be described based on this. When an operation switch (not shown) of the clean gas supply device 20 is actuated, as shown in FIG. The operating state of the air conditioning unit 10, that is, the blowing mode is determined. In step 110, it is determined whether or not the blowing mode is the face mode. In step 130, whether or not the blowing mode is the bi-level mode. In step 160, it is determined whether or not the blowing mode is the foot mode.

  If the face mode is selected at step 110, the rotational speed of the vacuum pump 212 is set to Hi at step 120. Thus, when the air-conditioning wind blown toward the occupant is in the face mode in which the airflow of the conditioned air is large in the vicinity of the occupant's face, the clean gas (oxygen) to the occupant is increased by increasing the flow rate of the clean gas blown out from the blowout nozzle 25. ) Can be prevented from decreasing.

  If the bi-level mode is selected in step 130, it is determined in step 140 whether or not the air flow rate mode is M2 (predetermined air flow) or more. At 120, the rotational speed of the vacuum pump 212 is set to Hi. Conversely, in step 140, it is determined whether or not the air flow rate mode is equal to or greater than M2 (predetermined air flow). And

  Thereby, when the airflow of the conditioned air blown toward the occupant is in the bi-level mode in which the airflow is slightly lower than the face mode in the vicinity of the occupant's face, the cleansing blown from the blowout nozzle 25 based on the airflow rate mode. By increasing the gas flow rate, it is possible to prevent the reachability of clean gas (oxygen) to the occupant.

  If it is the foot mode in step 160, it is determined in step 170 whether or not the air flow rate mode is M2 (predetermined air flow) or more. The rotation speed of the vacuum pump 212 is set to Me. Conversely, in step 170, it is determined whether the air flow rate mode is equal to or greater than M2 (predetermined air flow rate). And If the foot mode is not selected in step 160, the rotational speed of the vacuum pump 212 is set to Lo in step 180.

  Thereby, when the airflow of the conditioned air blown toward the occupant is in the foot mode in the vicinity of the occupant's face, the flow rate of the clean gas blown out from the blowing nozzle 25 is controlled based on the blowing amount mode. Thus, the clean gas supply device 20 can be activated. In step 190, if it is determined that there is fatigue when the level of the fatigue state output from the biological information control device 40 exceeds a predetermined level, the rotational speed of the vacuum pump 212 is set to one rank in step 200. Raise. Incidentally, when the rotation speed of the vacuum pump 212 is Hi, it may be made the strongest one rank higher than this. Thereby, the blowing flow rate of the clean gas blown from the blowing nozzle 25 becomes large, and the driver's fatigue can be recovered.

  In step 190, if the biological information control device 40 determines that there is no fatigue when the level of the fatigue state is equal to or lower than the predetermined level, in step 210, the rotational speed of the vacuum pump 212 is maintained in the current state. . In step 220, it is determined whether or not the clean gas supply device 20 is operating. That is, when the clean gas supply device 20 is operating, the number of rotations of the vacuum pump 212 is controlled based on the blowing mode, the air flow rate mode, and the driver's fatigue state.

  In this embodiment, control is performed so as to adjust the blow flow rate from the blow nozzle 25 by controlling the number of rotations of the vacuum pump 212. However, the present invention is not limited to this, and control may be performed so as to adjust the oxygen concentration. good. In the present embodiment, the air flow rate mode is set to M2 (predetermined air flow rate) or more. However, the present invention is not limited to this, and as shown in FIG. 5, the rotation of the vacuum pump 212 is based on the relationship between the air flow rate mode and the blowout mode. The number may be set in advance as Hi, Me, and Lo, and the vacuum pump 212 may be controlled based on the blowing mode and the blowing amount mode. In addition, although the rotation speed of the vacuum pump 212 was divided into three steps, Hi, Me, and Lo, it is not restricted to this.

  According to the vehicle air conditioner according to the first embodiment described above, the blowing nozzle 25 that blows out the clean gas diffuses the clean gas by the operation of the vehicle air conditioner, and the reachability of the clean gas (oxygen) to the occupant decreases. There is a problem to do. Therefore, in the present invention, particularly in the blowing mode, the clean gas blown from the blowing nozzle 25 is blown out toward the face of the occupant. By controlling the clean gas supply device main body 21 so as to be large, it is possible to prevent the reach of the clean gas to the occupant from being reduced by reducing the diffusion of the clean gas in the vicinity of the occupant's face.

  Further, the clean gas supply device 20 can be operated according to the operation of the vehicle air conditioner, and the clean gas supply according to any one of the physical condition of the occupant, for example, fatigue state, drowsiness state, or car sickness state An efficient operation of the device 20 is possible. Therefore, when the occupant's physical condition is poor in a vehicle having a small space capacity and a high degree of sealing, it is possible to recover from fatigue, prevent drowsiness or prevent sickness.

  Furthermore, by providing the biological information detection means 30 for detecting the physical condition of the occupant, it is possible to reliably detect physical conditions such as drowsiness, fatigue, and car sickness during traveling of the vehicle, thereby preventing and recovering them. In particular, the driver is excellent in preventing drowsiness and recovering from fatigue.

  Moreover, 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 membrane 211. By constituting the vacuum pump 212 that gives a pressure difference, in the vehicle, the oxygen concentration decreases due to the breathing action of the occupant and the comfort is gradually lost. However, the occupant can efficiently operate the clean gas supply device 21 to operate the occupant. 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 above 1st Embodiment, although comprised so that the clean gas supply apparatus 20 might be controlled based on the blowing mode and ventilation volume mode among the air-conditioning operation modes of the air-conditioning unit 10, not only this but the air-conditioning unit 10 You may make it control based on the inside / outside air mode of the ventilation unit 11 which selects either the vehicle interior air guide | induced or vehicle interior air guided.

  This is because in the inside air mode in which the vehicle interior air is guided to the air conditioning unit 10, an air flow from the vehicle rear to the vehicle front is generated in the vehicle interior as compared to the outside air mode in which the vehicle exterior air is guided. The airflow around the face is different. Therefore, in the inside air mode, for example, in the bi-level mode and the foot mode, the rotational speed of the vacuum pump 212 is set to the rotational speed of the set value as shown in FIG. 6 which is higher than the set value shown in FIG. You may control.

  According to this, although the airflow in the passenger compartment differs in the inside / outside air mode of the air conditioning unit 10, by controlling the clean gas supply device main body 21 based on this inside / outside air mode, the passenger's airflow is controlled in the same manner as in the first embodiment. Decreasing the reach of the clean gas to the passenger can be prevented by reducing the diffusion of the clean gas in the vicinity of the face.

(Other embodiments)
In the above embodiment, the heart rate sensor is used as the living body information detecting means 30. However, as another example of directly detecting the living body information related to the occupant's living state, an electroencephalogram, a pulse wave, a blood pressure, an eye movement (pupil, Any configuration may be used as long as at least one of eye gaze, eyelid opening / closing, skin electrical resistance, face screen information, and secretions (biological substances such as sweat and saliva) is detected as biometric information. Of course, a combination of a plurality of pieces of biological information may be detected.

  Other examples of indirectly detecting biological information related to the occupant's biological state include a method of estimating from occupant behavior information, for example, a steering operation state, speed fluctuation, abnormal excess, etc. A method may be used in which a white line on a road is detected by a CCD camera to be monitored and estimated from disturbance in driving behavior of the vehicle. Alternatively, the sitting time of the occupant may be measured, and the biological state may be estimated from the sitting time.

  Further, in the above embodiment, the blowing nozzle 25 of the clean gas supply device 20 is provided in the passenger seat so that the clean gas is blown out toward the vicinity of the face of the passenger, but not limited to this, as shown in FIG. You may provide in the ceiling part which is the interior material of the vehicle of a passenger seat vicinity. Moreover, you may provide the blowing nozzle 25 in the passenger | crew seat vicinity, such as a pillar, a door part, an instrument panel, a handle | steering-wheel, and a mirror other than a ceiling part.

  In addition to the biological information detection means 30 input to the biological information control device 40, as shown in FIG. 7, a biological information input means 35 for inputting the weight of the occupant can be provided so that the weight information of the occupant can be input in advance. You may comprise. According to this, since the required oxygen amount varies depending on the weight of the occupant, the clean gas supply device 20 may be controlled so that the required oxygen amount is obtained by inputting the occupant's weight as the biological information. As a result, it is possible to easily prevent and recover the illness of the passenger.

  Moreover, in the above embodiment, it comprised so that the clean gas supply apparatus main body 21 might be controlled based on any one of blowing mode, ventilation volume mode, and inside / outside air mode among the air-conditioning operation modes of a vehicle air conditioner. However, you may control the clean gas supply apparatus main body 21 based on the blowing direction of the blower outlet provided in the vehicle other than this. For example, it is detected whether or not the variable louver of the blowout outlet is directed toward the occupant, and when it is detected that the variable louver is directed toward the occupant, the clean gas blown out from the blowout nozzle 25 has either one of the blowout flow rate or the gas concentration. What is necessary is just to control the rotation speed of the vacuum pump 212 so that it may become large.

  Further, in addition to the air conditioning operation mode of the vehicle air conditioner, the clean gas supply device main body 21 may be controlled based on the seating position of the occupant. In this case, a seat position detecting means for detecting the distance between the seat position where the occupant sits and the air outlet from which the conditioned air is blown is provided. For example, when the seat position is in front of the vehicle, the air flow of the conditioned air Therefore, the rotational speed of the vacuum pump 212 may be controlled so that either the blow flow rate or the gas concentration of the clean gas blown from the blow nozzle 25 becomes large. Thereby, there exists an effect similar to the above embodiment.

  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 vehicle air-conditioner composition which constituted separate clean gas supply device 20 in vehicles which mount air-conditioning unit 10 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), (b) and (c) is explanatory drawing which shows the blowing direction of the conditioned air to the passenger | crew in the various blowing modes of the air conditioning unit 10. FIG. It is a flowchart which shows the control processing of the flow control program in 1st Embodiment of this invention. It is a characteristic view which shows the setting value of the vacuum pump 212 calculated | required from the relationship between the blowing mode and ventilation volume mode in the modification of 1st Embodiment of this invention. It is a characteristic view which shows the setting value of the vacuum pump 212 calculated | required from the relationship between the blowing mode and ventilation volume mode in the modification of 2nd Embodiment of this invention. It is a schematic diagram which shows the whole structure of the vehicle air conditioner which comprised the separate clean gas supply apparatus 20 in the vehicle carrying the air conditioning unit 10 in other embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Air conditioning unit 20 ... Clean gas supply apparatus 25 ... Blowing nozzle 30 ... Biological information detection means 35 ... Biological information input means 211 ... Oxygen-rich film 212 ... Vacuum pump (air pump means)

Claims (7)

An air conditioning unit (10) that is mounted in the passenger compartment and that controls the conditioned air that has been air-conditioned by guiding outside air or the passenger compartment air to a plurality of outlets provided in the passenger compartment based on the air conditioning operation mode. In a vehicle air conditioner comprising:
The air-conditioning unit (10) is provided separately from the air-conditioning unit (10), and has a blow-out nozzle (25) that blows clean gas toward the driver or passenger. The blow-off nozzle ( 25) A clean gas supply device (20) for supplying clean gas to the vehicle is mounted on the vehicle,
The clean gas supply device (20) has at least a flow rate of clean gas blown from the blow nozzle (25) toward the passenger based on the air conditioning operation mode of the air conditioning unit (10) and the physical condition of the passenger, or Control one of the gas concentrations ,
The air conditioning operation mode includes a face mode that blows air-conditioned air 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 a foot mode that blows conditioned air toward the feet of the occupant An air-conditioning air blowing mode that is blown out from the air outlet, an air-conditioning air blowing direction mode that is blown out from the air outlet toward an occupant, and a vehicle guided to the air-conditioning unit (10). It consists of an indoor / outdoor air mode that selects either outdoor air or vehicle interior air,
The clean gas supply device (20) is blown out from the blowing nozzle (25) toward the occupant based on any one of the air conditioning operation modes of the air conditioning unit (10) and the seating position of the occupant. A vehicle air conditioner that controls at least one of a flow rate and a gas concentration of clean gas. The clean gas supply device (20) is configured such that when the airflow received in the vicinity of the occupant's face of the clean gas blown out from the blowout nozzle (25) is smaller than the same airflow of the conditioned air blown out from the blowout port. 2. The vehicle air conditioner according to claim 1, wherein at least one of a flow rate and a gas concentration of the clean gas blown from the blow nozzle is controlled to be increased . An air conditioning unit (10) that is mounted in the passenger compartment and that controls the conditioned air that has been air-conditioned by guiding outside air or the passenger compartment air to a plurality of outlets provided in the passenger compartment based on the air conditioning operation mode. In a vehicle air conditioner comprising:
The air-conditioning unit (10) is provided separately from the air-conditioning unit (10), and has a blow-out nozzle (25) that blows clean gas toward the driver or passenger. The blow-off nozzle ( 25) A clean gas supply device (20) for supplying clean gas to the vehicle is mounted on the vehicle,
The clean gas supply device (20) has at least a flow rate of clean gas blown from the blow nozzle (25) toward the passenger based on the air conditioning operation mode of the air conditioning unit (10) and the physical condition of the passenger, or Control one of the gas concentrations,
The air conditioning operation mode includes a face mode that blows air-conditioned air 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 a foot mode that blows conditioned air toward the feet of the occupant An air-conditioning air blowing mode that is blown out from the air outlet, an air-conditioning air blowing direction mode that is blown out from the air outlet toward an occupant, and a vehicle guided to the air-conditioning unit (10). It consists of an indoor / outdoor air mode that selects either outdoor air or vehicle interior air,
The clean gas supply device (20) blows out at least the clean gas blown from the blow nozzle (25) toward the passenger based on any one of the air conditioning operation modes of the air conditioning unit (10). Control either flow rate or gas concentration,
The clean gas supply device (20) is configured such that when the airflow received in the vicinity of the occupant's face of the clean gas blown out from the blowout nozzle (25) is smaller than the same airflow of the conditioned air blown out from the blowout port. A vehicle air conditioner that controls at least one of a flow rate and a gas concentration of clean gas blown from a blower nozzle (25) . Biological information input means (35) for inputting the weight of the occupant is provided, and the clean gas supply device (20) is configured to supply the blowing nozzle (20) based on the weight of the occupant input by the biological information input means (35). 25. The vehicle air conditioner according to claim 1 , wherein at least one of a flow rate and a gas concentration of the clean gas blown toward the passenger from 25) is controlled . An air conditioning unit (10) that is mounted in the passenger compartment and that controls the conditioned air that has been air-conditioned by guiding outside air or the passenger compartment air to a plurality of outlets provided in the passenger compartment based on the air conditioning operation mode. In a vehicle air conditioner comprising:
The air-conditioning unit (10) is provided separately from the air-conditioning unit (10), and has a blow-out nozzle (25) that blows clean gas toward the driver or passenger. The blow-off nozzle ( 25) A clean gas supply device (20) for supplying clean gas to the vehicle is mounted on the vehicle,
The clean gas supply device (20) has at least a flow rate of clean gas blown from the blow nozzle (25) toward the passenger based on the air conditioning operation mode of the air conditioning unit (10) and the physical condition of the passenger, or Control one of the gas concentrations,
The air conditioning operation mode includes a face mode that blows air-conditioned air 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 a foot mode that blows conditioned air toward the feet of the occupant An air-conditioning air blowing mode that is blown out from the air outlet, an air-conditioning air blowing direction mode that is blown out from the air outlet toward an occupant, and a vehicle guided to the air-conditioning unit (10). It consists of an indoor / outdoor air mode that selects either outdoor air or vehicle interior air,
The clean gas supply device (20) blows out at least the clean gas blown from the blow nozzle (25) toward the passenger based on any one of the air conditioning operation modes of the air conditioning unit (10). Control either flow rate or gas concentration,
Biological information input means (35) for inputting the weight of the occupant is provided, and the clean gas supply device (20) is configured to supply the blowing nozzle (20) based on the weight of the occupant input by the biological information input means (35). 25) A vehicle air conditioner that controls at least one of a flow rate and a gas concentration of clean gas blown toward a passenger from 25) . The clean gas supply device (20) is a device for supplying clean gas generated in the blow-off nozzle (25) by guiding vehicle cabin air to enrich oxygen or adding oxygen to vehicle cabin air. The vehicle air conditioner according to any one of claims 1 to 5 .   The clean gas supply device (20) is guided through an oxygen-enriched membrane (211) that guides the cabin air to dissolve, diffuse, and desorb to enrich oxygen, and the oxygen-enriched membrane (211). The vehicle air conditioner according to any one of claims 1 to 6, characterized by comprising air pump means (212) for imparting a pressure difference to the passenger compartment air.

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