JP3772864B2 - Oxygen enricher - Google Patents

Description

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

As a conventional oxygen enricher, an apparatus main body that generates oxygen-enriched air by concentrating oxygen in the air, an oxygen discharge port connected to the apparatus, a sound source, a headphone-type sound output unit, etc. The oxygen discharge port and the sound output unit are integrated, and the oxygen discharge port is positioned at the mouth portion of the human body so that oxygen can be inhaled (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 3-63067

  However, in the conventional configuration, dew condensation occurs in the middle of the route through which oxygen-enriched air is sent from the oxygen concentrator to the oxygen discharge port, and the condensed water droplets are directly discharged from the oxygen discharge port, and the user can There was a problem that the water droplets and the like were sucked together with the oxygen-enriched air.

  There is also a problem that water drops remain in the path to the oxygen discharge port, causing mold and bacteria.

  An object of the present invention is to provide an oxygen enricher capable of efficiently obtaining oxygen-enriched air with respect to such a conventional technique.

In order to achieve the above object, the present invention provides an oxygen-enriched membrane unit provided in a main body, a blower for supplying air to the outer periphery of the oxygen-enriched membrane unit, and oxygen-enriched air from the oxygen-enriched membrane unit. And the oxygen-enriched membrane constituting the oxygen-enriched membrane unit is formed in a substantially rectangular shape so that its short side is substantially parallel to the direction of air travel, and the oxygen-enriched membrane unit The long side of the membrane is arranged so that it is substantially perpendicular to the direction of air travel, and an electromagnetic valve for introducing outside air is provided in the path between the suction means and the oxygen-enriched membrane unit. It is configured to perform a blowing operation that blows outside air that does not pass through the oxygen-enriched membrane by opening a solenoid valve, and the blowing operation is configured to be at least twice the amount of air during normal operation , and oxygen molecules are oxygen enriched To improve the efficiency of passing through the membrane Kill with, raised oxygen-enriched efficiency but because results of the water vapor problem can be solved, and further can be shortened ventilation time of the water vapor.

As described above, according to the present invention, the efficiency with which oxygen molecules pass through the oxygen-enriched film can be improved, and oxygen-enriched air can be obtained efficiently and there is no problem when the oxygen-enrichment efficiency is increased. Can be.

According to a first aspect of the present invention, there is provided an oxygen-enriched membrane unit provided in the main body, a blower for supplying air to the outer periphery of the oxygen-enriched membrane unit, and suction means for sucking oxygen-enriched air from the oxygen-enriched membrane unit The oxygen-enriched film constituting the oxygen-enriched film unit is formed in a substantially rectangular shape so that its short side is substantially parallel to the direction of air travel, and the long side of the oxygen-enriched film is An electromagnetic valve for introducing outside air is provided in the path between the suction means and the oxygen-enriched membrane unit, and the electromagnetic valve is opened before the end of operation. In addition to a configuration that performs a blowing operation that blows outside air that does not pass through the oxygen-enriched membrane, the blowing operation is configured to be at least twice the amount of air during normal operation , and first, the efficiency with which oxygen-enriched air is obtained is good Become. That is, assuming that the traveling direction of the air flow and the long side of the oxygen-enriched film are provided substantially in parallel, the oxygen concentration of the air passing through the side surface of the oxygen-enriched film moves forward along the air flow. The further it goes, the smaller the oxygen molecules on the way because they pass through the oxygen-enriched film. Therefore, although the efficiency of oxygen molecules passing through the oxygen-enriched film is worsened as it goes forward, in the present invention, the short side of the oxygen-enriched film is provided so as to be substantially parallel to the air traveling direction. In addition, the efficiency of passing oxygen molecules through the oxygen-enriched film does not deteriorate. In addition, an electromagnetic valve for introducing outside air is provided in a path between the suction means and the oxygen-enriched membrane unit, and a blowing operation for blowing outside air that does not pass through the oxygen-enriched membrane by opening the electromagnetic valve before the operation is completed. Since the air blowing operation is configured to be at least twice the air volume during normal operation, the problem of water vapor caused by increasing the oxygen enrichment efficiency can be solved, and further, the water vapor ventilation time. Can also be shortened.

  In the second invention, the oxygen-enriched membrane unit has a structure in which a plurality of modules each having an oxygen-enriched film attached to both sides of the frame and having a passage between the two membranes are stacked. The same effect as the first invention Is obtained.

  Furthermore, in the third aspect of the invention, the air blower is provided in the vicinity of the exhaust port provided in the main body so that the inside of the main body where the oxygen-enriched membrane unit is installed has a negative pressure, and no intake passage is provided. However, it is possible to supply air around the oxygen-enriched membrane unit.

(Embodiment 1)
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

  1 to 10, oxygen enrichment means (hereinafter referred to as “oxygen-enriched membrane unit”) such as an oxygen-enriched membrane unit, which raises the concentration of oxygen and generates so-called oxygen-enriched air, is generated inside the main body 1. 2) is provided. The oxygen-enriched membrane unit 2 is composed of a flat membrane of an organic polymer, and utilizes the difference in the speed of molecules passing through the membrane. It passes oxygen better than nitrogen in the air, so it has a relatively high oxygen concentration. So-called oxygen-enriched air is obtained. In ordinary air, the proportion of oxygen is about 21% (nitrogen is about 79%), but in the oxygen-enriched air after passing through the oxygen-enriched membrane unit 2 of the present embodiment, the proportion of oxygen is about 30% (about 70% nitrogen).

  The oxygen-enriched membrane unit 2 includes a plurality of modules 5 each having a substantially rectangular oxygen-enriched membrane 4 pasted on both sides of a mesh-structured frame 3 as shown in FIGS. The unit structure is a substantially rectangular parallelepiped unit, and a part of the air flowing around the oxygen-enriched film 4 passes through the oxygen-enriched film 4 by sucking the passage in the frame 3. The oxygen-enriched air is obtained by entering the passage, and the obtained oxygen-enriched air is concentrated and exhausted from the unit outlet 6 which is the only outlet of the oxygen-enriched membrane unit 2. Further, the substantially rectangular parallelepiped oxygen-enriched membrane unit 2 is configured such that the short side of the substantially rectangular oxygen-enriched membrane 4 that is a constituent member thereof is substantially parallel to the air traveling direction (the front-rear direction of the main body 1 in the present invention). In addition, it is provided in the main body 1 so that the long side is substantially perpendicular to the air traveling direction.

  Further, inside the main body 1, outside air is sucked into the main body 1 from an air inlet 7 provided on the back surface of the main body 1, sent to the oxygen-enriched membrane unit 2, and then passes through the oxygen-enriched membrane 4. A blower (hereinafter referred to as “fan”) 9 such as a motor fan for discharging outside air excluding air sucked into the passage from the exhaust port 8 provided on the side surface of the main body 1 to the outside. Yes. The fan 9 is provided in the vicinity of the exhaust port 8 on the downstream side of the oxygen-enriched membrane unit 2, and the circuit 70 is disposed on the opposite side of the oxygen-enriched membrane unit 2 with respect to the fan 9. It is attached so as to be in a direction parallel to the frame 3.

  Reference numeral 10 denotes a suction means such as a pump (hereinafter referred to as “pump”), which is provided below the oxygen-enriched membrane unit 2 in the main body 1 and has cooling fans 10b at both ends of the rotary shaft, Air around the membrane unit 2 is sucked from the oxygen-enriched membrane 4 into the passage of the frame 3 and sent downstream. Further, the pump 10 sends the oxygen-enriched air after passing through the oxygen-enriched membrane 4 to the discharge port portion 12 provided on the side surface of the main body 1 through the silencer pipe 11 on the downstream side, and further discharges the oxygen-enriched air. The gas is fed into an “oxygen-enriched air discharge means” to be described later connected to the outlet portion 12. The pump 10 is a bellows pump having a high operating pressure in order to increase the flow rate of oxygen-enriched air against the passage pressure loss of the oxygen-enriched membrane 4. The silencer pipe 11 is provided substantially horizontally in the vicinity of the pump 10 in the main body, and reduces the pulsation and noise of the oxygen-enriched air from the pump 10 while making it difficult for water droplets to accumulate therein. The passage cross-sectional area of the pipe 11 is larger than the cross-sectional area of the front and rear passage portions.

  Further, the pump 10 is attached to a sheet metal 37 as shown in FIG. 4, and is fitted and attached to the bottom boss of the main body 1 through vibration isolating materials 38 and 39. It is fastened with a washer 40 and a screw 41 that prevent the boss from coming off. Further, the main body 1 is provided with a leg 42 having a vibration isolating function on the bottom surface. A thermal fuse 43 for preventing overheating of the motor 10a that is a driving source of the pump 10 is attached by being urged by a cushion 45 in a direction in contact with the motor 10a.

  Reference numeral 14 denotes a handle of the main body 1, which is provided so as to be rotatable about a rotation shaft portion 15. Reference numerals 16 and 17 denote an inner case left and an inner case right, which constitute an inner case in which the oxygen-enriched membrane unit 2 and the pump 10 are built, and bearing portions that directly receive the rotary shaft portion 15 of the handle 14 above each. 18 and 19 are provided integrally. Reference numeral 20 denotes a holding portion for hooking and holding when the “oxygen-enriched air discharge means” described later is not used, and its outer end is a large diameter portion. The holding portion 20 is provided integrally with the rotary shaft portion 15 of the handle 14, and does not need to be separately provided on the side surface of the main body 1, and does not obstruct the rotation of the handle 14. Moreover, since it is provided integrally with the rotating shaft part 15, the design of the external appearance is not uncomfortable and is good.

  Further, as shown in the schematic configuration diagram of the main part of FIG. 10, an electromagnetic valve 60 for switching the introduction of outside air is provided in the path between the pump 10 in the main body 1 and the unit outlet 6 of the oxygen-enriched membrane unit 2. For about 1 minute before the operation is completed, the solenoid valve 60 is opened, the outside air that has not passed through the oxygen-enriched membrane 4 is sucked, and the air is sent to the downstream side by the pump 10, so that it stays in the pipe or the like. When high humidity air is ventilated and water droplets are generated, it is expelled to a “puddle”, which will be described later, and the route on the way is easy to dry. Further, as shown in FIG. 10, a HEPA filter 61 is provided upstream of the outside air introduction switching electromagnetic valve 60. When introducing the outside air, the HEPA filter 61 allows particles of 0.3 microns to be introduced. 99.7% can be removed. The air blowing operation is automatically executed after a normal operation by the timer is finished and after a predetermined time (10 seconds in this embodiment). Further, when the switch is operated in order to stop the normal operation by the timer, the operation is similarly stopped through the air blowing operation.

  On the other hand, 13 shown in FIG. 8 is a headset unit for supplying the user with oxygen-enriched air sent to the discharge port portion 12 constituted by a bent pipe rotatably attached to the side surface of the main body 1. This is oxygen-enriched air discharge means (hereinafter referred to as “headset unit”), and the headset unit 13 has a discharge port 21 for a user to suck in oxygen-enriched air. Further, in the path between the discharge port portion 12 and the headset unit 13 provided on the side surface of the main body 1, there is a liquid pool 22 and a flexible material such as vinyl chloride that connects the discharge port portion 12 and the liquid pool 22. A first connecting pipe 23 made of a transparent tube and a flexible second connecting pipe 24 made of a transparent tube made of vinyl chloride or the like for connecting the liquid reservoir 22 and the headset unit 13 are provided. The first connecting pipe 23 and the second connecting pipe 24 contain an antibacterial agent and / or an antistatic agent, and each is detachably connected by a liquid pool 22.

  The headset unit 13 includes an ear pad left 25, an ear pad right 26, a headband 27 connecting the ear pad left 25 and the ear pad right 26, an oxygen-enriched air discharge port 21, and the like. And a flexible joint portion 29 that is detachably connected to the bottom surface 28 of the ear pad left portion 26 and connects the bottom surface 28 and the discharge port 21 and is foldable. In addition, the second connecting pipe 24 having one end connected to the liquid pool 22 is also detachably attached to the bottom surface 28 of the left end 25 of the headset unit 13 as in the flexible universal joint 29. It is connected freely.

  The liquid reservoir 22 is provided with an O-ring so that the main body part can be separated into two parts 22a and 22b by a screw method or a press-fitting method while keeping airtight, and the main body part is separated into two parts and collected inside. Water droplets can be discharged. At this time, in the screw system, separation and coupling can be performed by twisting within one rotation. Further, a pipe part A30 and a pipe part projecting into the liquid pool 22 from the connection part between the liquid pool 22 and the first connection pipe 23 and the connection part between the liquid pool 22 and the second connection pipe 24, respectively. While providing B31, the said pipe part A30 and the pipe part B31 are provided shifting the center axis | shaft of the mutual pipe | tube.

  On the other hand, the discharge port 21 provided in the headset unit 13 is configured such that the discharge port main body 21a and the lid band 21b can be freely opened and closed by a spring latch or the like as shown in FIG. An antibacterial filter (hereinafter referred to as a “biosterilization filter”) 34 attached with an enzyme is disposed on the downstream side in the vicinity of the surface of the antibacterial material Amenitop HEPA filter or the like. In the following, each of them is referred to as an “antibacterial Amenitop HEPA filter”) 35. A spherical body 46 impregnated with a fragrance is incorporated. And the said bio sanitization filter 34 suppresses activity, such as the caught microbe, and also suppresses the activity of a virus. The antimicrobial material Amenitop HEPA filter 35 removes 99.7% of 0.3 micron particles and controls the activity of fungi and mold collected by the antimicrobial material Amenitop. The spherical body 46 gives a scent to the discharged air.

  In addition, 32 shown in FIG. 5 is an operation switch provided on the top surface of the main body 1, and 33 is also provided on the top surface of the main body 1, and displays the operation time by the selected timer or the energization state of the blowing operation. It is a lamp. Reference numeral 50 denotes an LED which is provided on the front surface of the main body 1 and is lit and displayed only when normal operation is performed (so-called oxygen-enriched air having a high oxygen concentration is supplied).

  Next, the operation of the present embodiment based on the above configuration will be described.

  When an operation time (any one of 10 minutes, 20 minutes, and 30 minutes) is set by a timer (not shown) included in the circuit 70 and the operation switch 32 is operated, the pump 10 attached via a vibration isolating material. The control means (not shown) for supplying the operation power to the lamp is operated, the lamp 33 indicating the energized state is turned on, the pump 10 is operated according to the time set by the timer, and the fan 9 is operated. When the fan 9 is operated, outside air is sucked from the intake port 7 provided in the main body 1, and this outside air passes through the oxygen enriched membrane unit 2 and is discharged from the exhaust port 8 to the outside of the main body. On the other hand, when the outside air passing through the oxygen-enriched membrane unit 2 passes through it, air is sucked into the frame 3 of the oxygen-enriched membrane unit 2 by the operation of the pump 10, and oxygen is easily passed from the place where oxygen easily passes. It becomes enriched air. The oxygen-enriched air is sent to the discharge port portion 12 and discharged from the discharge port portion 12.

  At this time, since the fan 9 is provided in the vicinity of the exhaust port 8, the operation of the fan 9 causes the inside of the main body 1 to have a negative pressure, and the outside air is sucked from the intake port 7, and between the intake port 7 and the exhaust port 8. The oxygen-enriched membrane unit 2 is provided in the main body 1 so that the oxygen-enriched membrane unit 2 does not have to be provided in the main body 1 without providing an intake passage extending from the intake port 7 to the exhaust port 8 through the oxygen-enriched membrane unit 2. It is possible to carry outside air around the chemical film unit 2. Furthermore, as shown in FIG. 5, if a hole 36 is provided in the outer periphery of the pump 10, the inside of the main body 1 becomes negative due to the operation of the fan 9. Therefore, the pump 10 around the hole 36 can be cooled. Further, the fan 10b provided on the shaft of the pump 10 can enhance the cooling of the pump.

  Further, in the substantially rectangular parallelepiped oxygen-enriched membrane unit 2, the short side of the substantially rectangular oxygen-enriched membrane 4 that is a constituent member of the oxygen-enriched membrane unit 2 is substantially parallel to the air traveling direction (in the present embodiment, the longitudinal direction of the main body 1). In addition, since the long side of the substantially rectangular oxygen-enriched film 4 is provided in the main body 1 so as to be substantially perpendicular to the air traveling direction, the efficiency with which oxygen-enriched air is obtained is good. Become. That is, assuming that the air flow direction and the long side of the oxygen-enriched film 4 are provided substantially in parallel, the oxygen concentration of the air passing through the side surface of the oxygen-enriched film 4 is along the air flow. The further forward, the smaller the oxygen molecules on the way, because they pass through the oxygen-enriched film 4. Accordingly, the efficiency with which oxygen molecules pass through the oxygen-enriched film 4 becomes worse as it goes forward, but in this embodiment, the short side of the oxygen-enriched film 4 is the direction of air travel (in this embodiment, the main body 1). Therefore, the efficiency with which oxygen molecules pass through the oxygen-enriched film 4 is not deteriorated.

  Further, since the oxygen-enriched air is discharged from a single discharge port called the unit discharge port 6 of the oxygen-enriched membrane unit 2, the connection with the downstream pump 10 is simplified. Since the oxygen-enriched membrane unit 2 is disposed on the pump 10, the main body is small in size and can have a highly stable structure with a reduced installation area, and the piping distance between the oxygen-enriched membrane unit 2 and the pump 10 can be shortened. In addition, since the circuit 70 is attached in a direction in which the substrate is parallel to the frame 3, the whole can be reduced in size while using the cooling airflow generated by the fan 9.

  Moreover, since the pump 10 uses a bellows pump having a high pressure during operation in order to increase the flow rate of oxygen-enriched air against the passage pressure loss of the oxygen-enriched membrane 4, pulsation and vibration of the conveyed air On the other hand, the silencer pipe 11 and the vibration isolating material act effectively. Since the muffler pipe 11 is arranged substantially horizontally in the vicinity of the pump 10, it has a configuration in which water drops do not easily collect in addition to the fact that the internal temperature does not decrease and condensation does not occur even when high humidity air passes.

  Here, in the oxygen-enriched film 4, the oxygen transmission rate is faster than the nitrogen transmission rate. In particular, in this embodiment, the oxygen transmission rate is more than twice the nitrogen transmission rate. Oxygen-enriched air can be obtained with a simple configuration.

  The vibration of the pump 10 is stabilized by the vibration-proofing effect of the vibration-proofing members 38 and 39 and the legs 42 sandwiching the sheet metal 37, and the cushion 45 can suppress the propagation of vibration while the thermal fuse 43 is in contact with the motor 10a.

  On the other hand, oxygen-enriched air sent from the unit discharge port 6 of the oxygen-enriched membrane unit 2 by the pump 10 is discharged from the discharge port 21 of the headset unit 13 via the first and second connection pipes 23 and 24. However, since the discharge port portion 12 can be turned up and down, it is possible to prevent the connection pipe from being bent and air from flowing. The water vapor contained in the oxygen-enriched air tends to travel from the silencer pipe 11 and the discharge port 12 on the downstream side to the discharge port 21 of the headset unit 13, and further on the path from the unit discharge port 6 to the headset unit 13. Water droplets condensed on the way (for example, the first connecting pipe 23 or the like) also try to go to the discharge port 21 of the headset unit 13. However, in this embodiment, since the liquid pool 22 is provided in the middle of the path (the first and second connecting pipes 23 and 24) connecting the main body 1 and the headset unit 13, most of the dew condensation water carried is Then, it collides with the inner wall or the like in the liquid pool 22 and becomes dammed in the liquid pool 22.

  In addition, since the liquid reservoir 22 is easily opened and closed by a screw or the like within one rotation, and is provided so as to protrude the pipe part A30 and the pipe part B31, even if condensed water accumulates in the liquid reservoir 22 This condensed water is difficult to flow out from the liquid pool 22 to the second connecting pipe 24 and the like. Moreover, since the pipe part center axis | shaft of the pipe part B31 which protruded in the said liquid pool 22 is shifted and provided with the pipe part center axis | shaft of pipe part A30, it is the pipe part from pipe part A30 also about the water vapor | steam carried. It is possible to prevent the direct flow into B31, and it is also possible to prevent the sound caused by the collision of the airflow between the pipes. For this reason, it is possible to prevent the water droplets from being scattered from the discharge port 21 of the headset unit 13 together with the oxygen-enriched air to the user's mouth and giving unpleasant feeling. Moreover, since the 1st, 2nd connection pipe contains an antibacterial agent, an antistatic agent, or both, it can prevent propagation of various bacteria and adhesion of dust, and can be used cleanly.

  Further, the oxygen-enriched membrane 4 has a water vapor permeability larger than that of nitrogen and is operated in a high humidity atmosphere, etc., as with oxygen, and a large amount of water vapor is contained in the oxygen-enriched air discharged from the unit outlet 6. Although it is included, the liquid pool 22 makes it possible to prevent clogging, and the oxygen enrichment means using a polymer film such as the oxygen enriched film 4 is particularly effective.

  Further, the oxygen-enriched air discharged from the discharge port portion 12 provided on the side surface of the main body 1 passes through the first connecting pipe 23, the liquid pool 22, and the second connecting pipe 24, and the ear pad left 25. Is sent to the bottom surface 28. Then, the user moves the bendable flexible joint portion 29 that is attached to the bottom surface 28 of the left side 25 of the ear pad portion and connects the bottom surface 28 and the discharge port 21 to move the discharge port 21 of the user. By approaching the mouth and nose, the oxygen-enriched air discharged from the discharge port 21 can be sucked from the mouth and nose.

  Here, the discharge port 21 has a bio sanitization filter 34 in which an enzyme is attached to a honeycomb substrate on the upstream side in the vicinity of the surface, and a HEPA filter 35 of the antimicrobial material Amenitop on the downstream side in the vicinity of the surface. The bio sanitization filter 34 suppresses the activity of caught bacteria and the like, and further suppresses the activity of virus. The antibacterial material Amenitop's HEPA filter 35 has a particle size of 0.3 microns. In addition to removing 7% and controlling the activity of fungi and fungi collected by the action of the antibacterial material Amenitop, even if miscellaneous bacteria etc. are generated in the middle of the route, the miscellaneous bacteria etc. together with oxygen-enriched air are Inhalation can be prevented at the final stage before the discharge port 21 where the user sucks. Moreover, since the said discharge outlet 21 is comprised with the discharge outlet main body 21a and the cover body 21b, replacement | exchange of these filters and spherical bodies 46 can be performed easily. The spherical body 46 is formed by impregnating a liquid, can limit the volatilization amount of the fragrance compared with the liquid, is easy to handle, and has less influence on deterioration of the surrounding resin.

  Further, since the flexible universal joint portion 29 is provided on the bottom surface 28 of the ear pad left portion 25, the flexible joint portion 29 can be freely bent in any direction without being restricted by the wall surface of the ear pad left portion 25. That is, when the flexible universal joint part 29 is provided on the side wall of the left part 25 of the ear pad, the wall surface becomes an obstacle and can be bent only in one direction. When mounted on the right side of the head, there arises a problem that the flexible universal joint part 29 cannot be bent near the user's mouth or nose, but such a problem is also eliminated.

  Moreover, since the 1st connection pipe 23 and the 2nd connection pipe 24 which connect the main body 1 and the headset unit 13 are each provided so that attachment or detachment is possible, the 1st connection pipe 23 and the 2nd connection pipe are each provided. When the inside of the pipe 24 becomes dirty, it can be removed and washed, and the lengths of the first connecting pipe 23 and the second connecting pipe 24 can be freely adjusted. It becomes possible to match, and usability improves.

  Also, the inner case left 16 and the inner case right 17 constituting the inner case containing the oxygen-enriched membrane unit 2 and the pump 10 which are the main components in the main body 1 of the oxygen enricher are integrally provided. Further, the rotating shaft portion 15 of the handle 14 fitted thereto can directly receive the load of the inner case containing the oxygen-enriched membrane unit 2 and the pump 10 via the bearing portions 18 and 19.

  Accordingly, even if other outer parts constituting the main body 1 are damaged, the handle 14 is not directly affected, so the handle 14 is detached from the main body 1 while carrying the main body 1 with the handle 14, The main body 1 does not fall on the user's foot and the safety is improved.

  Further, since the handle 14 is provided with a holding portion 20, when the headset unit 13 is not used, the holding portion 20 is provided with a first connecting pipe 23 or a second connecting tube 23 made of vinyl chloride or the like. When the connecting tube 24 is wound or the headband 27 of the headset unit 13 is hooked on the holding portion 20, the headset unit 13 is not left unattended, and the handle 14 can be rotated in a compact manner. It can be stored without obstructing. If the headset unit 13 is put in a bag and hooked on the holding unit 20, dust can be prevented from adhering even if stored for a long time, and a power cord is also hung. When the bag containing the fragrance is lowered, it becomes the front surface of the exhaust port 8, so that the diffusion effect of the fragrance is enhanced.

  Further, water droplets carried to the headset unit 13 from the second connecting tube 24 made of a tube such as vinyl chloride (this water droplet can be almost eliminated by shortening the connecting tube 24) or the headset unit 13. Condensed water droplets are usually difficult to drain and accumulate without being able to drain inside, causing mold and germs to occur, or sucking into the human body together with oxygen-enriched air. In this embodiment, since the second connecting pipe 24 is detachably connected to the bottom face 28 of the headset unit 13, the bottom face 28 is simply attached to and detached from the bottom face 28. It is possible to easily drain the water droplets collected in the water.

  In addition, this oxygen enricher automatically blows air after normal operation, so that it can be replaced even if high humidity air accumulates in the airframe and piping due to use on rainy days. This creates an environment where germs are difficult to propagate during storage. In addition, the display shows the operation state and the stop state in the series, and in addition to sandwiching the temporary stop state, the air volume during the air blowing operation can be ventilated quickly by making the air volume more than twice the air volume during normal operation In this case, the user is notified before the difference in the blowing sound occurs, so that the user can be reminded to remove the headset from wearing. In addition, by providing a high-performance filter such as HEPA at a portion that takes in air during the blowing operation, it is possible to prevent germs from entering the pipe.

  Further, as shown in FIG. 12, a liquid pool may be provided by providing a filter 80 having a water repellent function such as silicon at an appropriate position in the supply path of oxygen-enriched air, for example, without providing a container-type liquid pool. When the water vapor tries to pass through the filter 80, the water repellent function forms water droplets and accumulates on the upstream side of the filter 80. Therefore, the water vapor can be prevented from passing through, and is the same as the liquid pool 22 of the previous embodiment. It is possible to achieve the effect of.

  In addition, if a negative ion generator (not shown) is provided and the negative ions generated by the negative ion generator are mixed with oxygen-enriched air so that the user can suck it, the relaxation effect can be expanded. You can also get it.

  In the above embodiment, as the oxygen enrichment means, a system (flat film system) that generates high-concentration oxygen-enriched air using the difference in the speed of molecules passing through the polymer flat film is used. However, it is not limited to this, a method using a hollow fiber membrane (hollow fiber membrane method), a method using gas adsorption / desorption on a solid surface such as zeolite (PSA method), or an oxygen generator The same effect can be achieved by a method (chemical method) using a chemical reaction of a chemical substance such as reacting water with water.

  Further, in the headset 13 of the above embodiment, the ear pad left part 25 and the ear pad right part 26 are provided so as to touch the ears respectively, but there is no problem even if they are configured to be hooked on the ears. is there. Further, there is no problem even if only one of the ear pad left 25 and the ear pad right 26 is provided, and there is no problem even if the headband 27 is not provided.

  Further, in the headset 13 of the above embodiment, the flexible universal joint portion 29 having the discharge port 21 at the tip thereof is connected to the ear pad left portion 25, but there is no problem even if it is connected to the ear pad right portion 26. There is nothing.

  Further, in the headset 13 of the above embodiment, the second connecting pipe 24 connected to the liquid reservoir 22 is connected to the ear pad left 25, but there is no problem even if it is connected to the ear pad right 26. Is.

  Further, in the above-described embodiment, the headset unit 13 that the user wears on the head is exemplified as the oxygen-enriched air discharge means, but the present invention is not limited to this, and the type that is applied to the neck or shoulder is also satisfactory. There is no problem even if it is a type that wraps around part of the arm or part of the body with Velcro (registered trademark) etc., and there is no problem even if it is a type that is fastened to a part of clothing such as a tie with a pin etc. Even a type that covers a part of the face with an ear or the like like a dust mask can be used.

  In the above embodiment, the liquid pool 22 can be separated and the water droplets accumulated inside can be discharged. However, the present invention is not limited to this, and as shown in FIG. The body portion 22c is integrally formed, and a removable drain cap 22d is provided in a part of the body portion 22c by a screw method or a press-fitting method, and the drain cap 22d is removed from the body portion 22c of the liquid pool 22. The same effect can be obtained as a configuration for discharging the internal water. Of course, a fragrance such as the spherical body 46 may be placed in the liquid reservoir 22.

  Further, the liquid pool may be provided anywhere along the path to the discharge port 21, for example, in the middle of the bottom surface 28 of the ear pad left portion 25 itself or the universal joint portion 29.

As described above, the oxygen enricher according to the present invention can improve the efficiency with which oxygen molecules pass through the oxygen-enriched membrane, and can efficiently obtain oxygen-enriched air and increase the oxygen enrichment efficiency. Since the water vapor can be ventilated in a short time, it is extremely useful as a device that always provides a refreshing feeling to the user.

Sectional drawing seen from the side of the main body which shows the oxygen enricher in Embodiment 1 of this invention Sectional view from the back of the main body Sectional view from the top of the main unit Lumbar cross section showing the installation part of the pump (A) Front view of the main body (b) Side view of the main body (c) Rear view of the main body (d) Plan view of the main body Exploded perspective view of modules constituting the oxygen-enriched membrane unit (A) Appearance perspective view in a state where a plurality of the modules are arranged. (B) Appearance perspective view of an oxygen-enriched membrane unit constituted by the modules. External perspective view showing the headset of the oxygen enricher Sectional drawing showing the detail of the discharge outlet part in the headset unit Schematic configuration diagram showing the waist of the oxygen-enriched air supply path External perspective view showing a puddle of another oxygen enricher External perspective view showing a puddle of another oxygen enricher

Explanation of symbols

1 Body 2 Oxygen-enriched membrane unit (oxygen-enriching means)
4 Oxygen-enriched film 6 Unit outlet 7 Air inlet 8 Air outlet 9 Fan (fan)
10 Pump (suction means)
12 Discharge port 13 Headset unit (oxygen-enriched air discharge means)
21 Discharge port 23 First connecting pipe 24 Second connecting pipe

Claims (3)

An oxygen-enriched membrane unit provided in the body, a blower for supplying air to the outer periphery of the oxygen-enriched membrane unit, and a suction means for sucking oxygen-enriched air from the oxygen-enriched membrane unit. The oxygen-enriched membrane constituting the enriched membrane unit is formed in a substantially rectangular shape so that the short side thereof is substantially parallel to the air traveling direction, and the long side of the oxygen-enriched membrane is substantially parallel to the air traveling direction. In addition to being arranged at a right angle, an electromagnetic valve for introducing outside air is provided in the path between the suction means and the oxygen-enriched membrane unit, and the solenoid valve is opened before passing through the oxygen-enriched membrane. An oxygen enricher that is configured to perform a blowing operation for blowing outside air that is not performed, and in which the blowing operation is at least twice the amount of air during normal operation . 2. The oxygen enricher according to claim 1, wherein the oxygen enrichment membrane unit is configured by laminating a plurality of modules each having an oxygen enrichment membrane attached to both sides of the frame and having a passage between the two membranes. The oxygen enricher according to claim 1 or 2, wherein the blower is provided in the vicinity of an exhaust port provided in the main body so that the inside of the main body in which the oxygen-enriched membrane unit is installed has a negative pressure.

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