JP2006130200A - Oxygen enrichment machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an oxygen enrichment machine causing no obstruction even if used in a recumbent position and having high usability promoting a relaxed state by feeding optimal oxygen-enriched air according to the mental condition of the user. <P>SOLUTION: This oxygen enrichment machine is provided with a body 1 having an oxygen enrichment means 2, and an oxygen-enriched air delivery means 20 communicating with the oxygen enrichment means 2 and delivering the oxygen-enriched air obtained by the oxygen enrichment means 2; and an outlet part (not shown) of the oxygen-enriched air delivery means 20 delivering the oxygen-enriched air is disposed in a pillow part 21. This machine is further provided with a pressure detecting means 23 detecting the relaxed state of the user and a control means 14 controlling the output state of the oxygen-enriched air to be delivered based on the detection information from the pressure detecting means 23, and is so constituted as to change the output state of the oxygen-enriched air according to the detection information from the pressure detecting means 23. The control means 14 adjusts the output state of the oxygen-enriched air to be the optimal oxygen-enriched air for the user so as to improve the amenity without obstructing the relaxed state and improve the usability. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an oxygen enricher that provides oxygen enriched air to a user.

As a conventional oxygen enricher, an apparatus main body that is connected to a commercial power source and generates oxygen-enriched air by concentrating oxygen in the air, an oxygen discharge unit that is connected to this and discharges oxygen-enriched air, and audio A generation source that generates sound, a headphone type sound output unit, and the like, and the oxygen discharge unit and the sound output unit are integrated, and the oxygen discharge unit is positioned in a mouth portion of a user, There is one that can inhale enriched air (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 3-63067

  However, in the conventional configuration, there is a problem that the headset becomes an obstacle in a state where the headset is set on the head or the shoulder and used in a lying state.

  In addition, oxygen-enriched air is generally known to have an effect of relieving fatigue and relaxing the mental state of a person, but conventionally it is not involved in the use state of the user, and has a preset oxygen concentration. It is configured to supply a predetermined amount of air, and it cannot always be said that the optimum oxygen-enriched air according to the user's use condition is supplied, and even if the air volume was not noticed at the beginning of use, the mental state is When calmed down, the air volume was worrisome, and conversely, the relaxed state was disturbed.

  The present invention solves the above-described conventional problems, and does not interfere with the state of use while lying down, and even in a relaxed state, the usability of improving the user's comfort without inhibiting the relaxed state. It aims to provide a high oxygen enrichment machine.

  In order to solve the conventional problems, an oxygen enricher of the present invention includes a main body having oxygen enrichment means, and oxygen-enriched air obtained by the oxygen enrichment means in communication with the oxygen enrichment means. An oxygen-enriched air discharge means for discharging, and a discharge portion for discharging the oxygen-enriched air of the oxygen-enriched air discharge means is arranged in a pillow to detect a state where the user is lying down and relaxing Based on the detection information from the relaxed state detection means, and a control means for controlling the output state of the oxygen-enriched air to be discharged based on the detection information from the relaxed state detection means, according to the detection information from the relaxed state detection means, The output state of the oxygen-enriched air can be changed, and by providing a discharge part in the pillow, it can be used without being disturbed even when lying down and used from the relaxed state detecting means. Detection information Accordingly, the control means can adjust the output state of the oxygen-enriched air so that it becomes the optimum oxygen-enriched air for the user, so that even if the air volume that was not noticed at the beginning of use, the mental state becomes calm Since the air volume is worrisome and it is possible to prevent the relaxed state from being disturbed and improve the comfort of the user, the usability is improved.

  The oxygen enricher of the present invention does not get in the way of being used while lying down, and the control means becomes oxygen-enriched air optimum for the user according to the detection information from the relaxed state detection means. Since the output state of oxygen-enriched air can be adjusted, even if the air volume was not of interest at the beginning of use, the air volume will be worrisome when the mental state settles, and conversely, the relaxed state will be inhibited. Therefore, it is possible to provide an oxygen enricher with high usability that can eliminate the problem.

  The first invention includes a main body having oxygen enrichment means, and oxygen enriched air discharge means that communicates with the oxygen enrichment means and discharges oxygen enriched air obtained by the oxygen enrichment means, A relaxed state detecting means for detecting a state in which a user is lying and relaxing by disposing a discharge part for discharging oxygen-enriched air of the enriched air discharging means, and detection from the relaxed state detecting means Control means for controlling the output state of the oxygen-enriched air to be discharged based on the information, and a configuration capable of changing the output state of the oxygen-enriched air according to detection information from the relaxed state detecting means; As a result, by providing the discharge part in a pillow, it can be used without obstructing even when lying down and the control means is optimal for the user according to the detection information from the relaxed state detection means. oxygen Since the output state of oxygen-enriched air can be adjusted so that it becomes conditioned air, even if the air volume was not noticed at the beginning of use, if the mental state calms down, the air volume will be worrisome, and conversely the relaxed state It is possible to prevent the hindrance and improve the comfort of the user, so that the usability is improved.

  In the second invention, in particular, the relaxed state detecting means of the first invention is a pressure detecting means for converting a pressure change into a voltage and outputting the voltage, and the pressure detecting means is provided in a pillow so that It can be used without disturbing the state of use, accurately detecting the user's relaxed state such as the user's head movement and breathing state, so that the control means becomes the oxygen-enriched air optimal for the user In addition, since the output state of oxygen-enriched air can be adjusted, even if the air volume was not noticed at the beginning of use, the air volume will be anxious when the mental state has settled, and on the contrary, it prevents the relaxation state from being disturbed. And since a user's comfort can be improved, usability improves.

  In particular, the control means of the second invention is such that when the pressure level of the pressure detection means exceeds a predetermined threshold value, the oxygen-enriched air is discharged from the discharge portion, so that the user's head is blinded. It is possible to discharge the oxygen-enriched air from the discharge part automatically by judging that it has been placed on, and it is not necessary to operate the device when the user lays down with his head on the pillow, Usability is improved.

  According to a fourth aspect of the invention, in particular, the control means of the second or third aspect of the present invention is configured to cause the discharge amount of oxygen-enriched air from the discharge portion and / or the amount of change in the pressure level per unit time of the pressure detection means. Or, by changing the supply concentration, the oxygen-enriched air has a relaxing effect, so the state of breathing of the user in use is detected, and if the amount of change is large, the spirit is lifted Therefore, it is possible to perform fine control such as increasing the discharge amount and / or supply concentration, or reducing the discharge amount and / or supply concentration by determining that the amount of change is small and approaching a relaxed state. It can reduce consumption and improve user comfort.

  According to a fifth aspect of the invention, in particular, the control means according to any one of the second to fourth aspects of the present invention is arranged such that when the change amount of the pressure level per unit time of the pressure detection means falls below a predetermined change amount, By stopping the discharge of oxygen-enriched air, it is possible to judge that the user has entered a completely relaxed state and automatically stop the discharge of oxygen-enriched air, so that the user can enter a relaxed state. Since it is not necessary to perform troublesome work such as getting up and stopping the apparatus after entering, the usability is improved.

  In particular, the sixth aspect of the invention is the control means of any one of the second to fourth aspects of the invention, wherein the amount of change in pressure level per unit time of the pressure detecting means is less than a predetermined amount of change, and the state remains constant for a certain period of time. If it continues, by stopping the discharge of oxygen-enriched air from the discharge unit, it is possible to stop the discharge of oxygen-enriched air more reliably judging that the user has entered a completely relaxed state Further, it is possible to prevent the problem that the discharge of the oxygen-enriched air is stopped when the user is not yet completely in the relaxed state, and the usability can be further improved.

  In the seventh invention, in particular, the control means according to any one of the second to fourth inventions, the state in which the change amount of the pressure level per unit time of the pressure detection means is less than the predetermined change amount is within the predetermined time. If it is repeated more than once, the discharge of oxygen-enriched air from the discharge unit is stopped, so that it is judged more reliably that the user has entered a completely relaxed state, and the discharge of oxygen-enriched air is stopped. Therefore, it is possible to prevent the problem that the discharge of the oxygen-enriched air stops when the user is not yet in a completely relaxed state, thereby further improving the usability.

  The eighth aspect of the invention is particularly the control means according to any one of the fifth to seventh aspects of the invention, wherein the pressure level change amount per unit time of the pressure detection means exceeds a predetermined change amount or a predetermined change amount. If the state of exceeding the predetermined amount of time continues or the state of exceeding the predetermined change amount is repeated a plurality of times within the predetermined time, the discharge of the oxygen-enriched air from the discharge unit is resumed, thereby Since the supply of oxygen-enriched air can be automatically resumed when the condition rises again, there is no need for the user to bother operating the device to enter the relaxed state again. Will improve.

  In the ninth aspect of the invention, in particular, when the control means of any one of the second to eighth aspects of the invention detects that the pressure level of the pressure detecting means is equal to or lower than a predetermined level, the user detects the oxygen-enriched air. Therefore, it is determined that the operation has been completed, and the discharge of the oxygen-enriched air from the discharge unit is stopped, so that the user does not have to perform an operation to stop the apparatus.

  In a tenth aspect of the present invention, the plurality of discharge portions for discharging oxygen-enriched air are arranged substantially symmetrically on the left and right sides of the pillow, and the control means is arranged on the left and right based on the pressure level change state of the pressure detection means By switching the discharge state of the oxygen-enriched air from the discharged discharge unit, the oxygen-enriched air can be efficiently supplied to the user according to the orientation of the user's face, so the usability is further improved.

  In the eleventh aspect of the invention, in particular, the relaxed state detecting means of the first aspect of the invention is a heart rate detecting means for detecting the user's pulse by means of a transmission infrared sensor, so that the relaxed state of the user can be determined by the heart rate. Since the oxygen-enriched air has a relaxing effect, the output state of the oxygen-enriched air can be controlled according to the mental state of the user, and the user can be relaxed with higher accuracy. The usability can be improved.

  In the twelfth aspect of the invention, in particular, the relaxed state detecting means of the first aspect of the invention is a heart rate detecting means for detecting the user's pulse by means of a reflective infrared sensor, so that the user's relaxed state can be determined by the heart rate. Since the oxygen-enriched air has a relaxing effect, the output state of the oxygen-enriched air can be controlled according to the mental state of the user, and the user can be relaxed with higher accuracy. The usability can be improved.

  In the thirteenth invention, in particular, the relaxed state detecting means of the first invention is a heart rate detecting means for detecting the user's pulse with an ultrasonic sensor, so that the user's relaxed state is determined based on the heart rate. Since the oxygen-enriched air has a relaxing effect, the output state of the oxygen-enriched air can be controlled according to the mental state of the user, and the user can be relaxed with higher accuracy. This can improve the usability.

  In the fourteenth aspect of the invention, in particular, the relaxed state detecting means of the first aspect of the invention is a heart rate detecting means for detecting the user's pulse with a pressure sensor, so that the user's relaxed state is determined based on the heart rate. Since oxygen-enriched air has a relaxing effect, it is possible to control the output state of oxygen-enriched air according to the mental state of the user, leading the user to a relaxed state with higher accuracy. And usability is improved.

  In the fifteenth aspect of the invention, in particular, the relaxed state detecting means of the first invention is a heart rate detecting means for detecting the heart sound of the user with a microphone, so that the relaxed state of the user is determined based on the heart rate. Since the oxygen-enriched air has a relaxing effect, it is possible to control the output state of the oxygen-enriched air according to the mental state of the user, leading the user to a relaxed state with higher accuracy. And usability is improved.

  According to a sixteenth aspect of the present invention, in particular, the control means of any one of the eleventh to fifteenth aspects of the present invention is configured so that the discharge amount of oxygen-enriched air from the discharge portion and / or the discharge rate and / or according to the heart rate of the heart rate detector By changing the supply concentration, the oxygen-enriched air has a relaxing effect, so the heart rate status of the user in use is detected, and it is determined that the spirit is elevated when the heart rate is fast. Therefore, it is possible to perform fine control such as increasing the discharge amount and / or supply concentration, or reducing the discharge amount and / or supply concentration by judging that the heart rate is slow and approaching a relaxed state. It can reduce consumption and improve user comfort.

  According to a seventeenth aspect of the present invention, in particular, the control means of any one of the eleventh to sixteenth aspects of the invention is characterized in that the heart rate of the heart rate detecting means and / or the amount of change in heart rate per unit time is below a predetermined threshold value. By stopping the discharge of oxygen-enriched air from the discharge unit, it is possible to determine that the user has entered a deep sleep state and stop the discharge of oxygen-enriched air, so the user However, it is not necessary to perform troublesome work such as getting up and stopping the apparatus after entering the relaxed state, so that the usability is improved.

  According to an eighteenth aspect of the invention, in particular, the control means of any one of the eleventh to sixteenth aspects of the invention is characterized in that the heart rate of the heart rate detecting means and / or the amount of change in heart rate per unit time is below a predetermined threshold. When the state continues for a certain period of time, by stopping the discharge of oxygen-enriched air from the discharge unit, it is determined more reliably that the user has entered a completely relaxed state, and the oxygen-enriched air is discharged. Since it can be stopped, it is possible to prevent the problem that the discharge of the oxygen-enriched air stops when the user is not yet completely in the relaxed state, and the usability can be further improved.

  According to a nineteenth aspect of the invention, in particular, the control means of any one of the eleventh to sixteenth aspects of the invention is characterized in that the heart rate of the heart rate detecting means and / or the amount of change in heart rate per unit time is below a predetermined threshold value. If the state is repeated multiple times within a predetermined time, the oxygen enrichment is determined more reliably by stopping the discharge of oxygen enriched air from the discharge section, and the user has entered a fully relaxed state. Since the discharge of air can be stopped, it is possible to improve the usability by preventing the trouble that the discharge of oxygen-enriched air stops when the user is not yet fully relaxed. Can do.

  According to a twentieth aspect of the invention, in particular, the control means of any one of the seventeenth to nineteenth aspects of the present invention is such that the heart rate of the heart rate detecting means and / or the amount of change in heart rate per unit time exceeds a predetermined threshold value. Or when the state exceeding the predetermined threshold continues for a certain time, or when the state exceeding the predetermined threshold is repeated a plurality of times within the predetermined time, by restarting the discharge of the oxygen-enriched air from the discharge unit, Since the supply of oxygen-enriched air can be automatically resumed when the user's mental state rises again, there is no need for the user to bother operating the device to enter the relaxed state again. , More usability is improved.

  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)
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

  1 to 6, an oxygen enriching means 2 for increasing the concentration of oxygen and generating so-called oxygen-enriched air is provided inside the main body 1. Here, an oxygen-enriched part (hereinafter referred to as “oxygen-enriched membrane unit”) 3 such as an oxygen-enriched membrane unit is provided, and the oxygen-enriched membrane unit 3 is composed of a flat film of an organic polymer, This utilizes the difference in the velocity of molecules passing through the membrane, and allows oxygen to pass more than nitrogen in the air, so that so-called oxygen-enriched air having a relatively high oxygen concentration can be obtained. The proportion of oxygen in normal air is about 21% (nitrogen is about 79%), but in the oxygen-enriched air after passing through the oxygen-enriched membrane unit 3 of the present embodiment, the proportion of oxygen is about 30% (about 70% nitrogen).

  Further, inside the main body 1, outside air is sucked into the main body 1 from the air inlet 7 provided on the back surface of the main body 1 and sent to the oxygen-enriched membrane unit 3, and then the air that has passed through the oxygen-enriched membrane is removed. A blower (hereinafter referred to as “fan”) 4 such as a motor fan for discharging outside air from an exhaust port 8 provided on the side surface of the main body 1 to the outside. Reference numeral 5 denotes a suction means such as a pump (hereinafter referred to as “pump”), which is provided below the oxygen-enriched membrane unit 3 in the main body 1, and passes oxygen-enriched air after passing through the oxygen-enriched membrane downstream. It is sent to a discharge port 12 provided on the side surface of the main body 1 through the oxygen-enriched air supply path 11 on the side, and further to an “oxygen-enriched air discharge means” to be described later connected to the discharge port 12. It is sent to the outside, that is, the user side.

  In addition, a bellows pump having a high pressure during operation is used as the pump 5 in order to secure the flow rate of oxygen-enriched air against the passage pressure loss of the oxygen-enriched membrane. These oxygen-enriched membrane unit 3, fan 4 and pump 5 constitute oxygen enriching means 2. The intake port 7 is provided with an intake filter 9 for removing dust contained in the outside air. The external air passes through the intake filter 9 from the intake port 7 and then passes through the suction path 10 to the oxygen-enriched membrane unit 3. Supplied. At this time, the discharge amount of the oxygen-enriched air can be controlled by the output of the pump 5.

  The oxygen concentration of the oxygen-enriched air is such that the oxygen-enriched membrane unit 3 has a multi-stage configuration and the mixing ratio with normal air can be adjusted, and how much the sucked outside air passes through the oxygen-enriched membrane unit 3. The adjusting means 13 comprising an electromagnetic valve for adjusting how much it is mixed with normal air is provided, and is adjusted by the control means 14 for the output to the pump 5 and the adjusting means 13 to adjust the concentration and discharge amount of the oxygen-enriched air. To do.

  On the other hand, as shown in FIG. 3, reference numeral 20 denotes oxygen-rich air for supplying the user with oxygen-enriched air sent to the discharge port 12 constituted by a bent pipe rotatably attached to the side surface of the main body 1. A pillow portion comprising a substantially U-shaped pillow portion 21 and a plurality of discharge portions 22 provided in the vicinity of the tip of the pillow portion 21 for a user to suck oxygen-enriched air. A pressure detection means 23 comprising a pressure sensor that converts pressure into voltage and outputs it is provided at the center of the letter U where the user's head inside 21 is placed. Moreover, the discharge port 12 provided in the side surface of the main body 1 and the discharge part 22 provided in the oxygen-enriched air discharge means 20 are connected by a connecting pipe 24 made of a flexible tube such as vinyl chloride. Further, the pressure detection means 23 controls the discharge amount and / or the oxygen concentration of the oxygen-enriched air optimum for the user based on the voltage signal level of the pressure detection means 23 by the signal cable 25 attached in parallel with the connecting pipe 24. A voltage level signal corresponding to the pressure is output to the control means 14 constituted by a microcomputer or the like.

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

First, when the user puts his head on the pillow portion 21, the pressure detection means 23 detects the pressure and a voltage signal is output to the control means 14. When the control means 14 determines that the output voltage level exceeds a preset threshold level V ₀ in the control means 14, the control means 14 automatically starts operation. When the operation is started, electric power is supplied to the fan 4 and the pump 5, and the outside air is taken in from the air inlet 7 provided in the main body 1, and further passes through the air intake path 10 through the air intake filter 9 that removes dust. The oxygen-enriched air that has entered the oxygen-enriched membrane unit 3 and has passed through the oxygen-enriched membrane passes through the oxygen-enriched air supply path 11 on the downstream side, and is discharged from the discharge port 12 provided on the side surface of the main body 1. Then, the gas is discharged from the discharge portion 22 of the oxygen-enriched air discharge means 20 via the connecting pipe 24 and supplied to the user lying on the pillow body 21 with his head placed. Further, when the output voltage level subsequently falls below the threshold level V ₀ set in advance in the control means 14, it is determined that the user's head has moved away from the pillow portion 21, and the operation is stopped.

Next, the control means 14 recognizes that the user is in use while the output voltage level from the pressure detection means 23 exceeds the threshold level V ₀ , and always uses a preset unit time in the control means 14. The change in the voltage signal level from the pressure detection means 23 per t is calculated, and the concentration and discharge amount of the oxygen-enriched air are adjusted according to the user's relaxed state. That is, since the output voltage level from the pressure detecting means 23 rises and falls in synchronization with the state of breathing of the user, the peak voltage level V _P and the bottom voltage level V _{B of} the output voltage level are recognized, and V _P → V The time λ of one cycle of _B → V _P is detected, the average cycle λ _H per unit time is calculated, and compared with a threshold value λ 1 set in advance in the control means 14. It is determined that the respiration rate is high, that is, the mental state of the user is elevated, and the concentration and the discharge amount are increased. Conversely, when it is longer than λ1, it is determined that the user's respiration rate is low, that is, the user is approaching a relaxed state, and control is performed to reduce the concentration and the discharge amount.

  The amount of discharge is increased or decreased by changing the power supplied from the control means 14 to the pump 5. That is, as the power supplied to the pump 5 is increased, the amount of outside air sucked up, that is, the discharge amount of oxygen-enriched air can be increased. As for the increase / decrease of the oxygen concentration, as shown in FIG. 6, the oxygen-enriched membrane unit 3 has a multi-stage configuration, and the control means 14 changes the path through which the outside air passes by switching the adjustment means 13. To do. That is, since only the solenoid valve 13b is opened in FIG. 6, the sucked outside air passes through all of the oxygen-enriched films A, B, and C, and has the highest oxygen concentration. For example, if 13a is opened, only oxygen-enriched film A will pass, and the concentration can be suppressed. Moreover, if 13c is opened, it will become a path | route which does not pass an oxygen enrichment film | membrane, Therefore Mixing with another path | route can further suppress a density | concentration.

  Note that the means for creating oxygen-enriched air, the means for controlling the concentration and the discharge amount are not limited to this embodiment, and it is sufficient if the concentration and the discharge amount can be controlled. Further, in this embodiment, the case where the threshold value of the period λ is one has been described, but if the threshold value is provided in several stages, finer density and discharge amount control can be performed.

Furthermore, the control means 14 is provided with a preset threshold value λ ₀ , and when the average period λ _H per unit time is determined to be λ ₀ or more, it is determined that the user has completely entered a relaxed state, The driving is automatically stopped, and thereafter, when the average period λ _H per unit time is lowered to λ1, it is determined that the mental state of the user has been raised again, and the driving is resumed.

In this embodiment, the operation is stopped immediately after it is determined that the average period λ _H per unit time is λ ₀ or more, but the state continues for a predetermined time set in advance by the control means 14, or If it is determined that the number of times has been repeated a predetermined number of times set in advance by the control means 14 and the operation is stopped, more accurate control is possible.

As described above, in the present embodiment is provided with a pressure detecting means 23 in the pillow portion 21, exceeds the threshold level V ₀ of the output voltage level is preset at the control unit within 14 of the pressure detection means 23 When it is determined that the operation is automatically started, it is possible to automatically determine that the user's head is placed on the pillow portion 21 and to discharge the oxygen-enriched air from the discharge portion 22. Since the user does not have to operate the device during use, the usability is improved.

Further, in this embodiment, when the output voltage level of the pressure detection means 23 falls below the threshold level V ₀ set in advance in the control means 14, it is determined that the user's head has moved away from the pillow portion 21. Since the operation is stopped, it is possible to prevent the oxygen-enriched air from being continuously discharged while the user's head is detached from the pillow portion 21, so that it is bothered when the user stops using the device. Since it is not necessary to stop the apparatus, the usability is further improved.

In the present embodiment, the control means 14 recognizes that the user is in use while the output voltage level from the pressure detection means 23 exceeds the threshold level V ₀ , and always keeps in advance in the control means 14 in advance. A change in the voltage signal level from the pressure detection means 23 per unit time t is calculated, and the control means 14 controls the fan 4, the pump 5 and the adjustment means 13 according to the user's relaxed state. Since the concentration and discharge rate of oxygen-enriched air is adjusted to the optimum level for the user, even if the air volume was not noticed at the beginning of use, the air volume will be worrisome when the mental state has settled, and relaxed. Since it is possible to prevent the state from being hindered and improve the user's comfort, usability is improved.

Further, in the present embodiment, the control means 14 is provided with a preset threshold value λ ₀ , and when it is determined that the average period λ _H per unit time is not less than λ ₀ , the user is in a completely relaxed state. If the average period λ _H per unit time decreases to λ1, then it is determined that the user's mental state has been raised again, and the operation is resumed. While the user enters the relaxed state, it is not necessary to perform troublesome work such as getting up and stopping the apparatus, and wasteful power consumption can be suppressed. Furthermore, when the user's mental state is elevated again, the supply of oxygen-enriched air can be automatically resumed, so there is no need for the user to bother operating the device to enter the relaxed state again. Usability is improved.

(Embodiment 2)
7 and 8 show a second embodiment of the present invention, in which the oxygen-enriched air sent into the pillow portion 21 of the oxygen-enriched air discharge means 20 through the connecting pipe 24c is shown. Discharge direction switching means 30 comprising an electromagnetic valve or the like for switching the discharge direction is provided, and the pressure detection means 23 is 23a in order from right to left as seen from the state where the user places his head on the pillow body 21 on his back. , 23b, and 23c. The pressure detection means 23 a, 23 b, and 23 c individually detect the pressure, and the voltage signal is input to the control means 14 via the signal cable 25. From the control means 14, the discharge direction switching means 30 is controlled through the signal cable 25 based on the output voltage levels of the pressure detection means 23 a, 23 b and 23 c. The two left and right discharge portions 22a and 22b are connected to the discharge direction switching means 30 via connecting pipes 24a and 24b, respectively.

  With the above configuration, when the user puts his head on the pillow portion 21 facing straight on his / her back, the output voltage level of the pressure detection means 23b is the highest, so the control means 14 causes the discharge direction switching means 30 to Control is performed to discharge oxygen-enriched air from both of the discharge portions 22a and 22b. If the user turns to the right during use, the output voltage level of the pressure detection means 23a becomes higher than the output voltage level of the pressure detection means 23c, so that the control means 14 causes the user to turn to the right. And the discharge direction switching means 30 is controlled to discharge oxygen-enriched air only from the discharge portion 22a side. Conversely, when the user turns to the left during use, the output voltage level of the pressure detection means 23c becomes higher than the output voltage level of the pressure detection means 23a, so that the control means 14 causes the user to move leftward. , The discharge direction switching means 30 is controlled to discharge oxygen-enriched air only from the discharge portion 22b side.

  As described above, in the present embodiment, the control unit 14 controls the discharge direction switching unit 30 based on the output voltage level state of the pressure detection units 23a, 23b, and 23c, and discharge units 22a and 22b. Since the discharge state of the oxygen-enriched air discharged from the air can be switched, the oxygen-enriched air can be efficiently supplied to the user according to the orientation of the user's face, so that the usability can be further improved. .

(Embodiment 3)
FIG. 9 shows a third embodiment of the present invention. As a method for detecting the user's relaxed state, instead of obtaining information from the pressure detecting means 23 comprising a pressure sensor built in the pillow part 21, The heart rate detecting means 41 for detecting the pulse being used by the user is used.

  As a method of detecting a pulse, a method of determining a pulse rate by detecting a change in the flow rate of a user's blood flow using a transmission photoelectric sensor, a reflection photoelectric sensor, or an ultrasonic sensor, There are a method for determining the pulse rate by detecting the state of the expansion and contraction of the blood vessel using a pressure sensor and the like, and a method for determining the pulse rate by measuring the heart sound with a microphone, etc. The method is not limited at all, and the contents controlled by the control means 14 described below are not affected.

  The operation and action will be described below.

  Information on the heart rate of the user detected by the heart rate detection means 41 is input to the control means 14 via a signal cable 40 (not shown) drawn from the main body 1 separately from the connecting tube 24. Since the heart rate level from the heart rate detection means 41 increases and decreases in proportion to the level of the user's relaxed state, the control means 14 calculates an average heart rate α per unit time and is preset in the control means 14. The heart rate threshold value α1 is compared, and when it is greater than α1, it is determined that the user's mental state is elevated, and the oxygen concentration and the discharge amount are increased. On the other hand, when it is less than α1, it is determined that a relaxed state has been approached, and control such as lowering the density and the discharge amount is executed. The means for creating the oxygen-enriched air, the means for controlling the concentration, and the discharge amount are not different from the method described in the first embodiment, and thus the description thereof is omitted.

Further, the control means 14 is provided with a preset heart rate threshold value α ₀ , and when it is determined that the average heart rate α per unit time is equal to or less than α _0, it is determined that the user has entered a completely relaxed state. When the average heart rate α per unit time rises to α1, the user's mental state is determined to have been raised again, and the driving is resumed.

In this embodiment, the driving is stopped immediately after the average heart rate α per unit time is determined to be α ₀ or less, but the state continues for a predetermined time set in advance by the control means 14, or If it is determined that the number of times has been repeated a predetermined number of times set in advance by the control means 14 and the operation is stopped, more accurate control is possible.

  As described above, in the present embodiment, the control unit 14 always calculates the change in the average heart rate α per unit time of the heart rate level input from the heart rate detection unit 41 to sleep the user. Since the state is determined and the fan 4, the pump 5 and the adjusting means 13 are controlled according to the determination result to adjust the concentration and discharge amount of the oxygen-enriched air optimal for the user, It can promote sleep without disturbing sleep, improving usability.

Further, in the present embodiment, the control means 14 is provided with a preset heart rate threshold value α ₀ , and when the average heart rate α per unit time is determined to be less than or equal to α ₀ , the user completely It is determined that the user has entered a relaxed state, and the driving is automatically stopped. After that, if the average heart rate α per unit time increases to α1, it is determined that the user's mental state has been raised again and the driving is resumed. Therefore, it is not necessary to perform troublesome work such as getting up and stopping the apparatus when the user enters the relaxed state, and wasteful power consumption can be suppressed. Furthermore, when the user's mental state is elevated again, the supply of oxygen-enriched air can be automatically resumed, so there is no need for the user to bother operating the device to enter the relaxed state again. Usability is improved.
Further, if the heart rate detecting means 41 of the present example and the pressure detecting means 23 of the first embodiment are used in combination, the accuracy can be improved.

  As described above, the oxygen enricher according to the present invention determines the optimal concentration and discharge amount of oxygen-enriched air based on the user's relaxed state information without being disturbed even when lying down. Therefore, it can be applied not only at home but also in facilities and equipment that can effectively use high-concentration oxygen such as fatigue recovery.

System block diagram of the oxygen enricher in Embodiment 1 of the present invention Control flow chart of the oxygen enricher External perspective view showing oxygen enriched discharge means and main body of the oxygen enricher Side cross-sectional view of the oxygen enricher body Top sectional view of the oxygen enricher body Partial schematic diagram of the oxygen enricher External appearance perspective view showing an oxygen-enriched discharge means and a main body of an oxygen enricher in Embodiment 2 of the present invention System block diagram of the oxygen enricher System block diagram of an oxygen enricher in Embodiment 3 of the present invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 2 Oxygen enrichment means 3 Oxygen enrichment membrane unit 13 Adjustment means 14 Control means 20 Oxygen enriched air ejection means 21 Pillow part 22 Discharge part 23 Pressure detection means 30 Discharge direction switching means 41 Heart rate detection means

Claims (20)

A main body having oxygen-enriching means, oxygen-enriched air discharging means for discharging oxygen-enriched air obtained by the oxygen-enriching means in communication with the oxygen-enriching means, and a user lying down A relaxing state detecting means for detecting a state of being present, and a control means for controlling an output state of oxygen-enriched air to be discharged based on detection information from the relaxing state detecting means, the oxygen-enriched air discharging means An oxygen enricher configured to be provided with a discharge portion in a pillow and configured to change an output state of the oxygen-enriched air in accordance with detection information from the relaxed state detection means. The oxygen enricher according to claim 1, wherein the relaxed state detecting means is a pressure detecting means for converting a pressure change into a voltage and outputting the voltage, and the pressure detecting means is provided in a pillow. 3. The oxygen enricher according to claim 2, wherein the control means discharges oxygen-enriched air from the discharge portion when the pressure level of the pressure detection means exceeds a predetermined threshold value. The control means varies the discharge amount and / or supply concentration of the oxygen-enriched air from the discharge portion in accordance with the amount of change in the pressure level per unit time of the pressure detection means. The oxygen enrichment machine described. The control means stops discharge of oxygen-enriched air from the discharge section when the change amount of the pressure level per unit time of the pressure detection means falls below a predetermined change amount. The oxygen enricher according to any one of claims. The control means is characterized in that the discharge of the oxygen-enriched air from the discharge portion is stopped when the change amount of the pressure level per unit time of the pressure detection means is less than a predetermined change amount and the state continues for a certain time. The oxygen enricher according to any one of claims 2 to 4. The control means stops the discharge of the oxygen-enriched air from the discharge section when the state in which the pressure level change amount per unit time of the pressure detection means is lower than the predetermined change amount is repeated a plurality of times within the predetermined time. The oxygen enricher according to any one of claims 2 to 4, wherein The control means has a state in which the pressure level change amount per unit time of the pressure detection means exceeds a predetermined change amount or exceeds a predetermined change amount for a certain period of time or exceeds a predetermined change amount. The oxygen enricher according to any one of claims 5 to 7, wherein when it is repeated a plurality of times within a predetermined time, the discharge of the oxygen-enriched air from the discharge unit is resumed. When the control means detects that the pressure level of the pressure detection means has become equal to or lower than a predetermined level, the control means determines that the user's head has come off the pillow and stops discharging oxygen-enriched air from the discharge portion. The oxygen enricher according to any one of claims 2 to 8, characterized in that A plurality of discharge parts for discharging oxygen-enriched air are arranged almost symmetrically on the left and right sides of the pillow, and the control means is configured to detect oxygen from the discharge parts arranged on the left and right based on the pressure level change state of the pressure detection means The oxygen enricher according to any one of claims 1 to 3, wherein the discharge state of the enriched air is switched. 2. The oxygen enricher according to claim 1, wherein the relaxed state detecting means is a heart rate detecting means for detecting a user's pulse by a transmission infrared sensor. 2. The oxygen enricher according to claim 1, wherein the relaxed state detecting means is a heart rate detecting means for detecting a user's pulse by a reflective infrared sensor. The oxygen enricher according to claim 1, wherein the relaxed state detecting means is a heart rate detecting means for detecting a user's pulse by an ultrasonic sensor. 2. The oxygen enricher according to claim 1, wherein the relaxed state detecting means is a heart rate detecting means for detecting a user's pulse by a pressure sensor. 2. The oxygen enricher according to claim 1, wherein the relaxed state detecting means is a heart rate detecting means for detecting a heart sound of the user with a microphone. The control means varies the discharge amount and / or supply concentration of oxygen-enriched air from the discharge portion in accordance with the heart rate of the heart rate detection means. The oxygen enrichment machine described. The control means stops discharge of oxygen-enriched air from the discharge section when the heart rate of the heart rate detection means and / or the amount of change in heart rate per unit time falls below a predetermined threshold. The oxygen enricher according to any one of claims 11 to 16. The control means discharges oxygen-enriched air from the discharge section when the heart rate of the heart rate detecting means and / or the amount of change in the heart rate per unit time falls below a predetermined threshold and the state continues for a certain period of time. The oxygen enricher according to any one of claims 11 to 16, wherein the oxygen enricher is stopped. When the state in which the heart rate of the heart rate detecting unit and / or the amount of change in heart rate per unit time is below a predetermined threshold is repeated a plurality of times within a predetermined time, the control unit enriches oxygen from the discharge unit The oxygen enricher according to any one of claims 11 to 16, wherein discharge of air is stopped. The control means has a state in which the heart rate of the heart rate detection means and / or the amount of change in heart rate per unit time exceeds a predetermined threshold or exceeds a predetermined threshold, or continues for a predetermined time, or exceeds a predetermined threshold. The oxygen enricher according to any one of claims 17 to 19, wherein when the increased state is repeated a plurality of times within a predetermined time, the discharge of the oxygen-enriched air from the discharge unit is resumed.

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