JP2005324641A - Oxygen enrichment machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an oxygen enrichment machine of high versatility. <P>SOLUTION: The oxygen enrichment machine comprises a body 1 having an oxygen enrichment means which is installed in a ride area 13a of a moving vehicle 13 to enhance the concentration of oxygen in air, an oxygen-enriched air discharging unit 7 to discharge oxygen-enriched air into the ride area 13a of the moving vehicle 13, and a pollution sensor 11 to detect pollution of air in a cabin. Warning can be conveniently provided when the value of the pollution sensor 11 reaches a predetermined value. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an oxygen enricher that provides so-called oxygen enriched air obtained using an oxygen enrichment means to a user in a mobile vehicle.

Conventional oxygen enrichers include an oxygen enrichment module that generates oxygen enriched air, a path for supplying indoor or outdoor air to the module, an air feed means provided in the path, and the module. There is known a device that is provided with a path for supplying oxygen-enriched air into the room and a path for releasing the nitrogen-enriched air obtained by the module to the outside of the room, and is intended for use in a house or vehicle interior. (For example, see Patent Document 1).
JP 59-212632 A

  However, in the conventional oxygen enricher, only the compressor ON / OFF control is performed in order to stabilize the oxygen concentration at a predetermined value, and the contaminant components such as Nox that enter are also concentrated. Therefore, the most suitable control has not been made.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide an oxygen enricher having high usability by linking a dirt sensor and operation.

  In order to solve the above-mentioned conventional problems, the oxygen enricher of the present invention is provided with a dirt sensor for detecting dirt in the air in the passenger compartment, and notifies when the value of the dirt sensor exceeds a certain value. is there.

  As a result, since the notification is made when the value of the dirt sensor exceeds a certain value, the user can easily recognize the degree of dirt in the passenger compartment, and an oxygen-enriching machine with high usability can be provided.

  The oxygen enricher of the present invention can provide a highly usable oxygen enricher by linking the dirt sensor and operation.

  According to a first aspect of the present invention, there is provided a main body having oxygen enriching means for increasing the oxygen concentration in the air, installed in a mobile vehicle, and an oxygen enriched air discharge portion for discharging the oxygen enriched air into a riding portion of the mobile vehicle. And an oxygen enricher that notifies when the value of the dirt sensor exceeds a certain value, thereby notifying that the value of the dirt sensor exceeds a certain value. Therefore, the user can easily recognize the degree of dirt in the passenger compartment, and an oxygen enricher with high usability can be provided.

  In particular, according to the second invention, in the first invention, since the dirt sensor is a sensor that detects the concentration of Nox and Sox, in particular, the state of Nox and Sox contained in the exhaust gas can be easily visually recognized. The degree of indoor pollution can be recognized.

  In particular, in the first aspect of the present invention, in the first aspect of the invention, by providing means for notifying and stopping operation when the value of the dirt sensor exceeds a certain value, the inflow of dirt components into the passenger compartment is automatically performed. Can be suppressed.

  In particular, according to the fourth invention, in any one of the first to third inventions, an optimal oxygen-enriched air can be obtained by varying the amount of oxygen-enriched air discharged according to the value of the dirt sensor. Is possible.

  In the fifth invention, in particular, in the fourth invention, when changing the amount of oxygen-enriched air to be discharged in accordance with the value of the dirt sensor, by providing a delay in the change time of the discharge amount due to the sensor value, It is possible to drive without.

  In particular, in the sixth invention, in any one of the first to fifth inventions, the value of the dirt sensor is not referred to for a certain period of time after the discharge of oxygen-enriched air ends in the timer operation. It is possible to prevent erroneous detection of the dirt sensor.

  In a seventh aspect of the invention, in particular, in any one of the first to sixth aspects of the invention, the value of the dirt sensor before driving is compared with the value of the dirt sensor immediately after driving, and the difference is taken during driving. By adopting a configuration in which a value obtained by subtracting or adding from the intermediate value is determined to be a true value, stain detection can be performed with higher accuracy.

  In the eighth invention, in particular, in any one of the first to seventh inventions, a plurality of dirt sensors are provided, and a structure having the largest value is set to a true value. Can be detected.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment)
1 to 4 show an oxygen enricher according to an embodiment of the present invention.

  1 and 2, an oxygen-enriching machine main body (hereinafter referred to as a main body) 1 has an oxygen-enriched body in which oxygen concentration of air sucked into the main body 1 is increased to generate so-called oxygen-enriched air. An oxygen-enriched membrane unit 2 is provided as a means for generating oxygen. By passing through the oxygen-enriched membrane unit 2, the oxygen concentration of air is increased from 21% (about 79% nitrogen) before passing to about 30% (about 70% nitrogen).

  Further, inside the main body 1, outside air is sucked into the main body 1 from the intake port 3 provided on the back surface of the main body 1 by the intake means 12 and sent to the oxygen-enriched membrane unit 2. The air that does not pass through the oxygen-enriched film (not shown) is discharged to the outside from the exhaust port 4 provided on the side surface of the main body 1. The suction means 5 comprises a pump that allows a part of the air sucked into the main body 1 to pass through an oxygen-enriched film (not shown) of the oxygen-enriched film unit 2 and is provided on the side surface of the main body 1. The oxygen-enriched air is fed into the oxygen-enriched air discharge unit 7 connected to the discharge port 6 and connected to the discharge port 6.

  FIG. 3 shows a case where the main body 1 shown in FIG. 1 is installed in an automobile 13 among mobile vehicles.

  The main body 1 is disposed in the hood 13c of the automobile 27, and as described above, the control means (not shown) of the main body 1 is inserted through the connection cable 10 into the front of the driver's seat of the automobile 13 for inserting a vehicle driving key. Connected to the switch 9. Further, a dirt sensor 11 for detecting Nox and Sox contained in the exhaust gas is contained in the main body 1. The dirt sensor 11 has a characteristic that the output signal changes according to the concentration of Nox and Sox, and the installation location is not limited to the inside of the main body 1, but also in the riding portion 13 a and the route of the oxygen-enriched air discharge portion 7. Has the same effect.

  Moreover, the operation display part 15 is arrange | positioned at the dashboard 14 of the motor vehicle 13 shown to FIG. 3, FIG. 4 (a) like FIG.4 (b). The operation display unit 15 includes a power switch 16 for operating the main body 1, a power lamp 17 for indicating that the power is turned on, an abnormality display lamp 18 for displaying an abnormality of the main body 1, and a timer switch 19 for selecting an operation time of the main body 1. A timer display unit 20 for displaying the operation time is arranged.

  About the oxygen enricher comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, when driving the automobile 13, the driver inserts a key into the moving vehicle drive key insertion switch 9 disposed in front of the driver's seat, and starts the engine or rotates the key to the position of the ACC switch. At this time, the main body 1 arranged in the hood 13c is brought into an operable state in conjunction with starting the engine or starting the ACC switch. In this state, the main body 1 is energized, but the main body 1 is not operating.

  Next, when a driver or a passenger operates the power switch 16 of the operation display unit 15 in this state, the main body 1 is operated, and the air inlet 3 of the main body 1 sucks air (outside air) outside the riding portion 13b, Through the oxygen-enriched air discharge part 7, oxygen-enriched air is supplied to the inside 13a.

  Here, if the air (outside air) outside the riding section 13b contains more Nox and Sox than preset values, the dirt sensor 11 provided inside the main body 1 detects it, and the operation display section 15 The abnormality display lamp 18 provided on the vehicle is turned on to notify the driver and passengers. In this example, the notification means is the abnormality display lamp 18, but notification by sound, voice, characters, or a combination thereof is also possible.

  In the description of FIG. 3, the main body 1 is installed in the hood 13 c of the automobile 13, but may be installed in the trunk 13 d, the passenger compartment 13 a, or the like. In addition, when the dirt sensor 11 detects and the abnormality display lamp 18 is turned on and the operation of the main body 1 is stopped, the main body 1 can be stopped without any manual operation.

  The main body 1 has a built-in pump as the suction means 5 and discharges oxygen-enriched air by the operation of the pump. The discharge amount of oxygen-enriched air can be changed by changing the rotation speed of the pump. can do. Therefore, depending on the degree of output of the dirt sensor 11, for example, when there is little dirt, the rotation speed of the pump is maximized and the discharge amount of oxygen-enriched air is increased. Automatic control such as stopping the pump when the discharge amount of chemical air is reduced and the amount of dirt is increased is also possible. In addition, if the change in the rotation speed of the pump 5 is immediately adapted to the change state of the dirt sensor 11, a sense of incongruity in operation is generated. Therefore, the change in the rotation speed of the pump 5 is delayed with respect to the change in the value of the dirt sensor 11. Discomfort can be eliminated.

  Further, since the detection output of the dirt sensor 11 may fluctuate when the sensor itself is exposed to wind, the output may change when the main body 1 is in operation and when it is stopped. For this reason, it is possible to prevent malfunction of the main body 1 by setting so as not to refer to the output of the dirt sensor 11 for a certain time after the main body 1 stops.

  Similarly, the value of the dirt sensor 11 before driving is compared with the value immediately after driving, the difference is taken, and a value obtained by subtracting or adding from the value during driving is determined as a true value. Since the value of the dirt sensor 11 can be obtained, the detection accuracy can be improved.

  In addition, a plurality of dirt sensors 11 are provided in the main body 1, the passenger compartment 13 a, the oxygen-enriched air discharge section 7, and the like, and the largest value among them is set to a true value and interlocked with the operation of the main body 1, so that It becomes possible to control the main body 1 instantly and the usability is very good.

  The oxygen enricher according to the present invention is particularly useful for an oxygen enricher that is used in a sealed space because it has a high usability by linking the dirt sensor and operation.

Sectional drawing of the oxygen enricher in Embodiment 1 of this invention (A) Right side view of the oxygen enricher (b) Rear view of the oxygen enricher Schematic configuration diagram of the oxygen enricher when a mobile vehicle is installed (A) Schematic of the driver's seat of the mobile vehicle (b) Schematic of the operation part of the oxygen enricher

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 2 Oxygen-enriched membrane unit 7 Oxygen-enriched air discharge part 9 Key insertion switch for moving vehicle drive 11 Dirt sensor 13 Automobile 13a In boarding part 14 Dashboard 15 Operation display part

Claims (8)

A main body having oxygen enrichment means for increasing the oxygen concentration in the air, installed in a mobile vehicle, an oxygen enriched air discharge portion for discharging the oxygen enriched air into a passenger compartment of the mobile vehicle, and air in the vehicle interior An oxygen enricher that includes a dirt sensor that detects dirt, and that notifies when a value of the dirt sensor exceeds a certain value. The oxygen enricher according to claim 1, wherein the dirt sensor is a sensor that detects the concentration of Nox and Sox. The oxygen enricher according to claim 1, further comprising means for notifying operation when the value of the dirt sensor exceeds a predetermined value and stopping operation. The oxygen enricher according to any one of claims 1 to 3, wherein the amount of oxygen-enriched air to be discharged is varied in accordance with a value of the dirt sensor. 5. The oxygen enricher according to claim 4, wherein when changing the amount of oxygen-enriched air discharged in accordance with the value of the dirt sensor, a delay is provided in the change time of the discharge amount according to the sensor value. The oxygen enricher according to any one of claims 1 to 5, wherein the value of the dirt sensor is not referred to for a certain period of time after the discharge of oxygen-enriched air is completed by timer operation. The value of the dirt sensor before driving and the value of the dirt sensor immediately after driving are compared, the difference is taken during driving, and the value obtained by subtracting or adding from the driving value is determined as a true value. The oxygen enricher according to any one of 1 to 6. The oxygen enricher according to any one of claims 1 to 7, wherein a plurality of dirt sensors are provided, and the largest value is a true value.

Images