CN211521585U - Breath type portable oxygen generator - Google Patents
Breath type portable oxygen generator Download PDFInfo
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- CN211521585U CN211521585U CN201922184808.0U CN201922184808U CN211521585U CN 211521585 U CN211521585 U CN 211521585U CN 201922184808 U CN201922184808 U CN 201922184808U CN 211521585 U CN211521585 U CN 211521585U
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- molecular sieve
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Abstract
The utility model discloses an breath type portable oxygen generator, which comprises an air compressor and a control unit; the air compressor is sequentially connected with a cooling system, an electromagnetic valve component A, an air filtering component and an electromagnetic valve component B, a breathing sensor is arranged in a pipe body of the electromagnetic valve component B for supplying oxygen, the breathing sensor detects the difference of air pressure generated in the pipe body when a user breathes, the breathing sensor converts the difference into an electric signal and feeds the electric signal back to the control unit, the control unit controls the opening and closing of the electromagnetic valve group B according to the fed-back electric signal so as to keep the frequency of oxygen discharged by the electromagnetic valve group B consistent with the oxygen inhalation frequency of the user, and oxygen is supplied according to the breath of the user, so that the oxygen utilization; under the same oxygen uptake of user's condition, can adopt the compressor oxygen suppliment of less flow, realization product that like this can be better miniaturized and lightweight, releases a burst of oxygen at the accurate time of user's breathing in, and the frequency of oxygen suppliment and oxygen uptake is unanimous, and the user feels better when the oxygen uptake.
Description
Technical Field
The utility model relates to an oxygen making equipment, in particular to an breath type portable oxygen generator.
Background
Oxygen is an essential resource for human survival, and plays a very important role in daily life, particularly in the process of disease treatment or emergency treatment. Originally, people stored prepared oxygen in cylinders at low temperature and pressure for occasional use, but it was inconvenient to use. Therefore, the oxygen generator can be transported as needed. The oxygen generator can be used for disease treatment or emergency treatment, and healthy people can inhale oxygen regularly to promote health and improve working efficiency.
The traditional continuous oxygen generator continuously generates oxygen, and oxygen can be generated as long as the machine is started regardless of whether a user is inhaling oxygen or not. Therefore, the actual oxygen utilization rate is very low, a compressor with larger flow is required to be equipped, and the power is larger. Therefore, the oxygen generator with the principle generally needs an external power supply, and the volume of the machine is larger.
The common pulse oxygen generator controls the switch of the electromagnetic valve group through a preset pulse frequency, and performs pulse oxygen generation. This go out oxygen principle is high-efficient a lot than traditional oxygen utilization ratio of going out oxygen in succession, but in the in-service use, often can be inconsistent with user's breath frequency, leads to user's oxygen uptake effect poor, can appear the user not going out oxygen when breathing in simultaneously, goes out this kind of condition of oxygen in the time of exhaling.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims at providing an breath formula portable oxygen generator, under the condition that does not influence user's oxygen uptake, keep the frequency of oxygenerator oxygen discharge and user's oxygen uptake unanimous.
The technical scheme is as follows: the utility model relates to an breath type portable oxygen generator, which comprises an air compressor and a control unit; the air compressor is connected with a cooling system, an electromagnetic valve component A, an air filtering component and an electromagnetic valve component B in sequence, a breathing sensor is arranged in a pipe body of the electromagnetic valve component B for supplying oxygen, the breathing sensor detects the difference of air pressure generated in the pipe body when a user breathes, the breathing sensor converts the difference into an electric signal and feeds the electric signal back to a control unit, and the control unit controls the opening and closing of the electromagnetic valve group B according to the fed-back electric signal to keep the frequency of oxygen discharged by the electromagnetic valve group B consistent with the oxygen inhalation frequency of the user.
Further, the electromagnetic valve group B comprises an electromagnetic valve B1, a check valve III and a check valve IV which are arranged in parallel, and outlets of the electromagnetic valve B1, the check valve III and the check valve IV are communicated; and the inlet of the third check valve and the inlet of the fourth check valve are communicated with the corresponding air filtering components, and the third check valve or the fourth check valve alternately outputs oxygen to the electromagnetic valve B1.
Further, an oxygen storage tank is arranged between the electromagnetic valve B1 and the one-way valve, and when the electromagnetic valve B1 is in a closed state, the three-way valve or the four-way valve alternately injects oxygen into the oxygen storage tank.
Further, the electromagnetic valve group B also comprises an electromagnetic valve B2 and an electromagnetic valve B3; one end of the electromagnetic valve B2 is arranged on a passage between the electromagnetic valve B1 and the outlet of the one-way valve, a pressure sensor is arranged in the oxygen storage tank, the pressure sensor converts the pressure value in the oxygen storage tank into an electric signal and feeds the electric signal back to the control unit, and the control unit controls the electromagnetic valve B2 to be opened and closed according to the fed-back electric signal so as to prevent the pressure of the oxygen storage tank from being overhigh; the electromagnetic valve B3 is connected in series between the inlets of the two one-way valves, and the control unit controls the electromagnetic valve B3 to open and close according to the feedback electric signal so as to realize the alternate work of the filtering component.
Further, the air filtering component comprises a molecular sieve bed A and a molecular sieve bed B, an outlet of the molecular sieve bed A is communicated with the three inlets of the one-way valve, and an outlet of the molecular sieve bed B is communicated with the four inlets of the one-way valve; a first check valve and a second check valve which are connected in series and have opposite flow directions are arranged between the molecular sieve bed A and the molecular sieve bed B, wherein one flow of the first check valve flows to the molecular sieve bed A, and the other flow of the second check valve flows to the molecular sieve bed B; the other end of the solenoid valve B2 is disposed between the first check valve and the second check valve.
Further, the electromagnetic valve assembly A comprises an electromagnetic valve A1 and an electromagnetic valve A2 which are connected in parallel, an inlet of the electromagnetic valve A1 and an inlet of the electromagnetic valve A2 are both communicated with an outlet of the compressor, an outlet of the electromagnetic valve A1 is communicated with an inlet of the molecular sieve bed A, and an outlet of the electromagnetic valve A2 is communicated with an inlet of the molecular sieve bed B; a silencer is connected between the electromagnetic valve A1 and the electromagnetic valve A2 in parallel.
Utility model purpose: the utility model aims at providing a control method of portable oxygenerator of breath formula keeps the frequency unanimous of oxygenerator oxygen discharge and user's oxygen uptake under the condition that does not influence user's oxygen uptake.
The technical scheme is as follows: the utility model relates to a control method of breath type portable oxygen generator, which comprises the following steps:
1. the compressor sucks air from the air, and the compressed air is supplied to the molecular sieve;
2. the control unit controls the electromagnetic valve group module A to alternately control compressed gas to enter the molecular sieve bed A and the molecular sieve bed B and discharge waste gas containing nitrogen;
3. after the molecular sieve bed A or the molecular sieve bed B supplies oxygen, the control unit controls the electromagnetic valve B3 in the electromagnetic valve module B to open and close so as to charge oxygen to the oxygen storage tank;
4. every time the respiration sensor detects a respiration signal, the control unit controls the electromagnetic valve B1 in the electromagnetic valve module B to be opened once, oxygen in the oxygen storage tank is discharged through the electromagnetic valve B1, a burst of oxygen is released at the accurate time of inhalation of a user, the respiration sensor senses every respiration, and oxygen is continuously delivered in the mode.
Further, in step 2, when the solenoid valve a1 of the solenoid valve group module a inflates the molecular sieve, the solenoid valve a2 of the solenoid valve group module a discharges exhaust gas; when solenoid A2 of solenoid group module A charges the molecular sieve, solenoid A1 of solenoid group module A vents the exhaust.
Further, in step 3, after oxygen is discharged from the molecular sieve bed A, oxygen is filled into the oxygen storage tank through the one-way valve 3; after the molecular sieve bed B is oxygenated, the oxygen is charged into the oxygen storage tank through the one-way valve 4.
Further, in step 3, when the pressure sensor detects that the pressure of the oxygen storage tank is too high, the control unit opens the electromagnetic valve B2, when the molecular sieve bed a discharges oxygen, the pressure oxygen in the oxygen storage tank is discharged into the molecular sieve bed B through the electromagnetic valve B2 and the check valve 2, and is discharged along with the process of discharging the exhaust gas from the molecular sieve bed B; when the molecular sieve bed B discharges oxygen, the pressure oxygen in the oxygen storage tank is discharged into the molecular sieve bed A through the electromagnetic valve B2 and the one-way valve 1, and is discharged along with the process of discharging the waste gas from the molecular sieve bed A; finally, solenoid valve B2 is closed.
Has the advantages that: compared with the prior art, the utility model: oxygen is supplied according to the breath of the user, so that the utilization rate of the oxygen is higher; under the condition that a user absorbs oxygen at the same amount, a compressor with smaller flow can be adopted for supplying oxygen, so that the miniaturization and the light weight of the product can be better realized, meanwhile, the power of the compressor is greatly reduced, and the service life of the battery can be greatly prolonged; a burst of oxygen is released at the accurate time of the user inhaling, the oxygen supply frequency is consistent with the oxygen inhalation frequency, and the user feels better when inhaling oxygen.
Drawings
FIG. 1 is a system schematic diagram of an breath-type portable oxygen generator;
FIG. 2 is a schematic view of the filter assembly, the solenoid valve assembly B, the oxygen storage tank and the oxygen supply;
fig. 3 is a schematic diagram of air inhalation and alternate oxygen supply.
Detailed Description
As shown in fig. 1, a compressor 1 sucks air from air, the air is pre-filtered and sucked by the compressor 1, the compressed air is discharged and supplied to a filter assembly 4 composed of a molecular sieve bed a and a molecular sieve bed B, and the compressed air passes through a cooling system 2 and a solenoid valve bank a3 before entering the filter assembly 4.
The control unit 8 will control the solenoid valve group a3 to control the compressed gas alternately to the molecular sieve beds a and B and to discharge the waste gas containing nitrogen. The solenoid valve group A3 comprises a solenoid valve A1 and a solenoid valve A2, and when the solenoid valve A1 inflates the molecular sieve, the solenoid valve A2 discharges waste gas; when solenoid A2 charges the molecular sieve, solenoid A1 will vent the exhaust.
Oxygen discharged from the molecular sieve bed a and the molecular sieve bed B is injected into the oxygen storage tank 6, specifically, after the molecular sieve bed a and the molecular sieve bed B alternately discharge air, the control unit 8 controls the electromagnetic valve B3 in the electromagnetic valve group B5 to charge oxygen into the oxygen storage tank 6.
In order to prevent the internal pressure of the oxygen tank 6 from being too high, a pressure sensor 7 is arranged in the oxygen tank 6, and the pressure sensor 7 is used for detecting a pressure signal of the oxygen tank 6. When detecting the pressure is too high, the control unit 8 will control the solenoid valve B2 of the solenoid valve set B5 to release the pressure of the oxygen in the oxygen storage tank 6 by exhausting the exhaust gas.
The breath sensor 9 is used to sense the onset of breath of the user. Every time the respiration sensor 9 detects a respiration signal, the control unit 8 will control the solenoid valve B1 in the solenoid valve set B5 to open once, so as to discharge the oxygen in the oxygen storage tank 6 through the solenoid valve B1, and release a burst of oxygen at the exact time of inhalation of the user, and the respiration sensor 9 will sense every respiration and continue to deliver oxygen in this way.
As shown in fig. 2, a solenoid valve set B5, a filter assembly 4 composed of a molecular sieve bed a and a molecular sieve bed B, and an oxygen storage tank 6. When the solenoid valve group B5 does not work, the solenoid valves B1, B2 and B3 are all in a closed state.
When the oxygen storage tank 6 is in the process of oxygenation, after the molecular sieve bed A is oxygenated, the oxygen is oxygenated to the oxygen storage tank 6 through the one-way valve 3; or after the molecular sieve bed B produces oxygen, the oxygen is filled into the oxygen storage tank 6 through the one-way valve 4.
When the pressure sensor 7 detects that the pressure of the oxygen storage tank 6 is too high, the control unit 8 controls the pressure relief process of the electromagnetic valve set B5: first, opening the electromagnetic valve B2; when the molecular sieve bed A discharges oxygen, the pressure oxygen in the oxygen storage tank 6 passes through the electromagnetic valve B2 and the one-way valve 2 and is finally discharged into the molecular sieve bed B, and is discharged along with the process of discharging the waste gas from the molecular sieve bed B. Or when the molecular sieve bed B discharges oxygen, the pressure oxygen in the oxygen storage tank 6 is discharged into the molecular sieve bed A through the electromagnetic valve B2 and the one-way valve 1, and is discharged along with the process of discharging the waste gas from the molecular sieve bed A, and the electromagnetic valve B2 is closed.
When the breath sensor 9 detects the breath of the user, the control unit 8 controls the solenoid valve B5 to discharge oxygen:
firstly, the high-sensitivity respiration induction sensor can sense the pressure change of the oxygen outlet when the user starts to inhale, and the respiration action of the user is identified. The respiration sensor 9 will transmit this information to the single-chip control unit 8. The control unit 8 controls to open the solenoid valve B1 through a circuit on the mainboard, then the oxygen in the oxygen storage tank 6 is discharged from the oxygen outlet through the solenoid valve B1 for the user to use, and finally the solenoid valve B1 is closed.
As shown in fig. 3, the solenoid valve group A3 includes a solenoid valve a1 and a solenoid valve a2, in which the solenoid valve a1 and the solenoid valve a2 are both 3-to-2 valves, and each of the valves includes a port 1, a port 2, a port 3 (not shown in the solenoid valve port), a port 1 of the solenoid valve a1, a port 1 of the solenoid valve a2, and a muffler port. The port 2 of the solenoid valve a1, the port 2 of the solenoid valve a2 and the outlet of the compressor are communicated with each other. Port 3 of solenoid valve a1 communicates with molecular sieve bed a. Port 3 of solenoid valve a2 communicates with molecular sieve bed B. And (3) aerating the molecular sieve bed A and exhausting waste gas from the molecular sieve bed B: firstly, the control unit 8 controls the connection between the interface 2 and the interface 3 of the electromagnetic valve A1, and controls the connection between the interface 1 and the interface 3 of the electromagnetic valve A2.
Then the compressed gas at the air outlet of the air compressor 1 passes through the electromagnetic valve A1 to inflate the molecular sieve bed A, and finally the waste gas in the molecular sieve bed B passes through the electromagnetic valve A2 to be discharged from the interface 1 and is silenced by a silencer.
And (3) aerating the molecular sieve bed B and exhausting waste gas from the molecular sieve bed A: firstly, the control unit 8 controls the connection between the interface 2 and the interface 3 of the electromagnetic valve A2, controls the connection between the interface 1 and the interface 3 of the electromagnetic valve A1, then the compressed gas at the air outlet of the air compressor 1 passes through the electromagnetic valve A2 to inflate the molecular sieve bed A, and finally the waste gas in the molecular sieve bed B passes through the electromagnetic valve A1 to be discharged from the interface 1 and silenced by a silencer.
Claims (6)
1. An breath type portable oxygen generator comprises an air compressor and a control unit; the air compressor is characterized in that the air compressor is sequentially connected with a cooling system, an electromagnetic valve component A, an air filtering component and an electromagnetic valve component B, a breathing sensor is arranged in a pipe body of the electromagnetic valve component B for supplying oxygen, the breathing sensor detects the difference of air pressure generated in the pipe body when a user breathes, the breathing sensor converts the difference into an electric signal and feeds the electric signal back to a control unit, and the control unit controls the opening and closing of an electromagnetic valve group B according to the fed-back electric signal so as to keep the frequency of oxygen discharged by the electromagnetic valve group B consistent with the oxygen inhalation frequency of the user.
2. The breath type portable oxygen generator as claimed in claim 1, wherein the solenoid valve set B comprises a solenoid valve B1, a third check valve and a fourth check valve arranged in parallel, the solenoid valve B1 and the outlets of the third check valve and the fourth check valve are both communicated; and the inlet of the third check valve and the inlet of the fourth check valve are communicated with the corresponding air filtering components, and the third check valve or the fourth check valve alternately outputs oxygen to the electromagnetic valve B1.
3. The breath type portable oxygen generator as claimed in claim 1, wherein an oxygen storage tank is provided between the solenoid valve B1 and the one-way valve, and when the solenoid valve B1 is in a closed state, the three-way valve or the four-way valve alternately injects oxygen into the oxygen storage tank.
4. The breath-type portable oxygen generator as claimed in claim 1, wherein the solenoid valve set B further comprises solenoid valve B2 and solenoid valve B3; one end of the electromagnetic valve B2 is arranged on a passage between the electromagnetic valve B1 and the outlet of the one-way valve, a pressure sensor is arranged in the oxygen storage tank, the pressure sensor converts the pressure value in the oxygen storage tank into an electric signal and feeds the electric signal back to the control unit, and the control unit controls the electromagnetic valve B2 to be opened and closed according to the fed-back electric signal so as to prevent the pressure of the oxygen storage tank from being overhigh; the electromagnetic valve B3 is connected in series between the inlets of the two one-way valves, and the control unit controls the electromagnetic valve B3 to open and close according to the feedback electric signal so as to realize the alternate work of the filtering component.
5. The breath type portable oxygen generator according to claim 1, wherein the air filtering component comprises a molecular sieve bed A and a molecular sieve bed B, an outlet of the molecular sieve bed A is communicated with the three inlets of the one-way valve, and an outlet of the molecular sieve bed B is communicated with the four inlets of the one-way valve; a first check valve and a second check valve which are connected in series and have opposite flow directions are arranged between the molecular sieve bed A and the molecular sieve bed B, wherein one flow of the first check valve flows to the molecular sieve bed A, and the other flow of the second check valve flows to the molecular sieve bed B; the other end of the solenoid valve B2 is disposed between the first check valve and the second check valve.
6. The breath type portable oxygen generator as claimed in claim 1, wherein the solenoid valve assembly a comprises a solenoid valve a1 and a solenoid valve a2 connected in parallel, an inlet of the solenoid valve a1 and an inlet of the solenoid valve a2 are both communicated with an outlet of the compressor, an outlet of the solenoid valve a1 is communicated with an inlet of the molecular sieve bed a, and an outlet of the solenoid valve a2 is communicated with an inlet of the molecular sieve bed B; a silencer is connected between the electromagnetic valve A1 and the electromagnetic valve A2 in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922184808.0U CN211521585U (en) | 2019-12-09 | 2019-12-09 | Breath type portable oxygen generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922184808.0U CN211521585U (en) | 2019-12-09 | 2019-12-09 | Breath type portable oxygen generator |
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| CN211521585U true CN211521585U (en) | 2020-09-18 |
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| CN201922184808.0U Active CN211521585U (en) | 2019-12-09 | 2019-12-09 | Breath type portable oxygen generator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110937578A (en) * | 2019-12-09 | 2020-03-31 | 无锡赫尔德克精密机械有限公司 | Breath type portable oxygen generator and control method thereof |
| CN113401875A (en) * | 2021-07-15 | 2021-09-17 | 清华大学深圳国际研究生院 | Portable oxygen generator |
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2019
- 2019-12-09 CN CN201922184808.0U patent/CN211521585U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110937578A (en) * | 2019-12-09 | 2020-03-31 | 无锡赫尔德克精密机械有限公司 | Breath type portable oxygen generator and control method thereof |
| CN113401875A (en) * | 2021-07-15 | 2021-09-17 | 清华大学深圳国际研究生院 | Portable oxygen generator |
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