CN116278651A - Vehicle-mounted oxygen supply device, vehicle, and control method for vehicle-mounted oxygen supply device - Google Patents
Vehicle-mounted oxygen supply device, vehicle, and control method for vehicle-mounted oxygen supply device Download PDFInfo
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- CN116278651A CN116278651A CN202310508741.XA CN202310508741A CN116278651A CN 116278651 A CN116278651 A CN 116278651A CN 202310508741 A CN202310508741 A CN 202310508741A CN 116278651 A CN116278651 A CN 116278651A
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- 239000001301 oxygen Substances 0.000 title claims abstract description 169
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 169
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 168
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 194
- 239000000463 material Substances 0.000 claims abstract description 64
- 238000004891 communication Methods 0.000 claims abstract description 32
- 230000005540 biological transmission Effects 0.000 claims abstract description 28
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 22
- 238000012546 transfer Methods 0.000 claims description 15
- 230000017525 heat dissipation Effects 0.000 claims description 10
- 230000000241 respiratory effect Effects 0.000 claims description 8
- 239000007787 solid Substances 0.000 abstract description 3
- 230000001276 controlling effect Effects 0.000 description 11
- 239000007789 gas Substances 0.000 description 8
- 238000009792 diffusion process Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007954 hypoxia Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- -1 hydroxyl ions Chemical class 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/0007—Adding substances other than water to the air, e.g. perfume, oxygen
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
- A62B18/02—Masks
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/08—Respiratory apparatus containing chemicals producing oxygen
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B9/00—Component parts for respiratory or breathing apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/0007—Adding substances other than water to the air, e.g. perfume, oxygen
- B60H3/0035—Adding substances other than water to the air, e.g. perfume, oxygen characterised by the control methods for adding the substance
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- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- Emergency Management (AREA)
- Business, Economics & Management (AREA)
- General Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Air-Conditioning For Vehicles (AREA)
Abstract
The disclosure provides a vehicle-mounted oxygen supply device, a vehicle and a control method of the vehicle-mounted oxygen supply device, and belongs to the technical field of automobile accessories. The vehicle-mounted oxygen supply device comprises a control unit, an oxygen concentration sensor, an oxygen generation unit and CO 2 Transmission pipeline, O 2 The oxygen generating unit comprises a material chamber, a reaction chamber and a reaction control device positioned between the material chamber and the reaction chamber, wherein Na is arranged in the material chamber 2 O 2 . The control unit controls the reaction control device to adjust the communication opening between the material chamber and the reaction chamber according to the oxygen concentration in the vehicle, and when the oxygen concentration in the vehicle is lower, the reaction control device is communicated with the material chamber and the reaction chamber to enable CO to be generated 2 And Na (Na) 2 O 2 Reaction to produce O 2 And the lower the oxygen concentration, the larger the communication opening degree. Thus not only ensuring that O can be generated in the reaction chamber when the oxygen concentration is low 2 Can also ensure that Na is not consumed when the oxygen concentration is high 2 O 2 . In addition, na 2 O 2 Is solid, is easy to store in an oxygen producing unit, and occupies smaller volume.
Description
Technical Field
The disclosure relates to the technical field of automobile accessories, in particular to a vehicle-mounted oxygen supply device, a vehicle and a control method of the vehicle-mounted oxygen supply device.
Background
When the vehicle is in a closed environment for a long time, the oxygen in the carriage is gradually reduced, so that the life safety of passengers in the carriage is seriously influenced. Therefore, a vehicle-mounted oxygen supply device is required to supply oxygen to the carriage, so that the sufficient oxygen in the carriage is ensured.
In the related art, gaseous oxygen or liquid oxygen is stored in the in-vehicle oxygen supply device, and when the oxygen concentration in the vehicle is low, the oxygen in the in-vehicle oxygen supply device is released into the vehicle.
However, the vehicle-mounted oxygen supply device in the related art has high cost for storing gaseous oxygen or liquid oxygen, occupies large space, and is difficult to store more oxygen in a limited space.
Disclosure of Invention
The present disclosure provides a vehicle-mounted oxygen supply device, a vehicle, and a control method of the vehicle-mounted oxygen supply device, which can solve technical problems existing in related technologies, and the technical solutions of the control methods of the vehicle-mounted oxygen supply device, the vehicle, and the vehicle-mounted oxygen supply device are as follows:
in a first aspect, the present disclosure provides a vehicle-mounted oxygen supply apparatus including a control unit, an oxygen concentrationDegree sensor, oxygen production unit and CO 2 Transmission pipeline, O 2 A transfer line and a respiratory mask;
the oxygen generating unit comprises a material chamber, a reaction chamber and a reaction control device, wherein Na is arranged in the material chamber 2 O 2 The reaction control device is positioned between the material chamber and the reaction chamber and is used for controlling the communication opening degree between the material chamber and the reaction chamber;
the CO 2 Two ends of the transmission pipeline are respectively communicated with the reaction chamber and the breathing mask, and the CO 2 A transfer line for transferring CO2 generated by an occupant at the respiratory mask to the reaction chamber;
the O is 2 Two ends of the transmission pipeline are respectively communicated with the reaction chamber and the breathing mask, and the O is as follows 2 The transmission pipeline is used for generating O in the reaction chamber 2 To the respiratory mask;
the control unit is configured to control the reaction control device to adjust a communication opening between the material chamber and the reaction chamber based on the oxygen concentration in the vehicle detected by the oxygen concentration sensor, wherein when the material chamber and the reaction chamber are communicated, CO in the reaction chamber 2 With Na in the material chamber 2 O 2 Reaction to produce O 2 。
In one possible implementation, when the oxygen concentration in the vehicle is less than a first target concentration threshold, the control unit controls the reaction control device to communicate the material chamber with the reaction chamber;
when the oxygen concentration in the vehicle is larger than the second target concentration threshold value and smaller than the first target concentration threshold value, the smaller the oxygen concentration in the vehicle is, the larger the communication opening between the material chamber and the reaction chamber is;
when the oxygen concentration in the vehicle is smaller than a second target concentration threshold value, the communication opening between the material chamber and the reaction chamber reaches the maximum;
when the oxygen concentration threshold value in the vehicle is larger than the first target concentration threshold value, the control unit controls the reaction control device to separate the material chamber from the reaction chamber.
In one possible implementation, the reaction control device includes a first control board, a second control board, and a driver;
the first control plate is provided with a first hole, the second control plate is provided with a second hole, and the material chamber is communicated with the reaction chamber through the superposition part between the first hole and the second hole;
the driving piece is used for driving the first control board and/or the second control board to translate so as to adjust the size of the superposition part between the first hole and the second hole.
In one possible implementation, the drive member comprises a motor and a gear, the motor and the gear being in driving connection;
at least one of the first control board and the second control board has a rack that meshes with the gear.
In one possible implementation, the oxygen generating unit further includes a temperature control device and a heat dissipating device, at least a portion of the temperature control device being fixed inside the reaction chamber, the heat dissipating device being fixed outside the reaction chamber;
the control unit is configured to control the heat dissipation device to be turned on when the temperature in the reaction chamber detected by the temperature control device is higher than a target temperature threshold;
and when the temperature detected by the temperature control device is lower than the target temperature threshold, controlling the heat dissipation device to be closed.
In one possible implementation, the oxygen generating unit further includes a pressure relief valve for communicating the interior and exterior of the reaction chamber when the pressure inside the reaction chamber is greater than a target pressure threshold.
In one possible implementation, the pressure relief valve is fixed to the outside of the reaction chamber, and is opened when the pressure inside the reaction chamber is greater than a target pressure threshold.
In one possible implementation, what isThe O is 2 The transmission pipeline comprises a first one-way valve and a filter;
the filter is located between the reaction chamber and the first one-way valve.
In one possible implementation, the CO 2 The transmission pipeline comprises a second one-way valve and a humidifier.
In a second aspect, the present disclosure also provides a vehicle comprising an on-board oxygen supply device as claimed in any one of the first aspects.
In a third aspect, the present disclosure also provides a control method of an in-vehicle oxygen supply apparatus, the control method being applied in the control unit of the in-vehicle oxygen supply apparatus according to any one of the first aspects, the control method comprising:
acquiring the concentration of oxygen in the vehicle detected by the oxygen concentration sensor;
and controlling the reaction control device to adjust the communication opening between the material chamber and the reaction chamber based on the concentration of oxygen in the vehicle detected by the oxygen concentration sensor.
In one possible implementation manner, when the reaction control device includes a first control board, a second control board and a driving piece, and the first control board has a first hole, and the second control board has a second hole, controlling the reaction control device to adjust the opening of the communication between the material chamber and the reaction chamber includes:
the driving piece drives the first control board and/or the second control board to translate, and the size of the superposition part between the first hole and the second hole is adjusted.
In one possible implementation manner, when the oxygen generating unit further includes a temperature control device and a heat dissipating device, the control method further includes:
when the temperature detected by the temperature control device is higher than a target temperature threshold, controlling the heat dissipation device to be started;
and when the temperature detected by the temperature control device is lower than the target temperature threshold, controlling the heat dissipation device to be closed.
The technical scheme provided by the disclosure at least comprises the following beneficial effects:
the present disclosure provides a vehicle-mounted oxygen supply device, na in an oxygen generation unit in the vehicle-mounted oxygen supply device 2 O 2 Oxygen can be generated. Exhaled CO after the passenger wears the breathing mask 2 By CO 2 The transmission pipeline enters the reaction chamber and CO 2 With Na and Na 2 O 2 Chemical reaction takes place in the reaction chamber and O is produced 2 . O formed in the reaction chamber 2 Through O 2 The transmission pipeline enters the breathing mask, and the passengers inhale O when inhaling 2 Thereby avoiding hypoxia. Since oxygen supply device stores oxygen not in gaseous or liquid state but in O form 2 Na of (2) 2 O 2 。Na 2 O 2 Is solid, is easier to store, and occupies a smaller volume, so that the oxygen supply device can provide more oxygen in a limited space. In addition, the control unit controls the reaction control device to adjust the communication opening between the material chamber and the reaction chamber according to the oxygen concentration in the vehicle, and when the oxygen concentration in the vehicle is lower, the reaction control device is communicated with the material chamber and the reaction chamber. And the lower the oxygen concentration is, the larger the communication opening between the material chamber and the reaction chamber is, thereby accurately controlling CO 2 With Na and Na 2 O 2 Is a reaction rate of (a). Thus, the oxygen generating unit can generate O when the oxygen concentration is low 2 Can also ensure that Na is not consumed when the oxygen concentration is high 2 O 2 。
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. In the drawings:
fig. 1 is a schematic structural view of an in-vehicle oxygen supply apparatus according to an embodiment of the present disclosure;
FIG. 2 is a schematic view of the structure of an oxygen generating unit according to an embodiment of the present disclosure;
fig. 3 is a schematic structural view of an in-vehicle oxygen supply apparatus according to an embodiment of the present disclosure;
FIG. 4 is a schematic structural view of a reaction control apparatus according to an embodiment of the present disclosure;
FIG. 5 is a schematic structural view of a reaction control apparatus according to an embodiment of the present disclosure;
FIG. 6 is a schematic structural view of a reaction control apparatus according to an embodiment of the present disclosure;
FIG. 7 is a schematic structural view of a reaction control apparatus according to an embodiment of the present disclosure;
FIG. 8 is a flowchart of a control method of an in-vehicle oxygen supply apparatus according to an embodiment of the present disclosure;
FIG. 9 is a logic diagram illustrating opening control between a material chamber and a reaction chamber according to an embodiment of the present disclosure;
FIG. 10 is a logic diagram illustrating a reaction chamber temperature control according to an embodiment of the present disclosure.
Legend description:
100. a power supply;
1. a control unit;
2. an oxygen concentration sensor;
3. the device comprises an oxygen generating unit, 31, a material chamber, 32, a reaction chamber, 33, a reaction control device, 331, a first control board, 331a, a first hole, 3311, a rack, 332, a second control board, 332a, a second hole, 333, a driving part, 3331, a motor, 3332, a gear, 34, a temperature control device, 341, a constant current control circuit, 342, an A/D analog-to-digital conversion circuit, 35, a heat dissipating device, 36 and a pressure release valve;
4、CO 2 a transmission pipeline 41, a second one-way valve 42 and a humidifier;
5、O 2 a transmission pipeline 51, a first one-way valve 52 and a filter;
6. a respiratory mask.
Specific embodiments of the present disclosure have been shown by way of the above drawings and will be described in more detail below. These drawings and the written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the disclosed concepts to those skilled in the art by reference to specific embodiments.
Detailed Description
For the purposes of clarity, technical solutions and advantages of the present disclosure, the following further details of the embodiments of the present disclosure will be described with reference to the accompanying drawings.
The terminology used in the description of the embodiments of the disclosure is for the purpose of describing the embodiments of the disclosure only and is not intended to be limiting of the disclosure. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first," "second," "third," and the like in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly.
The present disclosure provides a vehicle-mounted oxygen supply device, as shown in fig. 1, which includes a control unit 1, an oxygen concentration sensor 2, an oxygen generation unit 3, and CO 2 Transfer line 4, O 2 A transfer line 5 and a respiratory mask 6. As shown in fig. 2, the oxygen generating unit 3 includes a material chamber 31, a reaction chamber 32, and a reaction control device 33, and Na is provided in the material chamber 31 2 O 2 A reaction control device 33 is located between the material chamber 31 and the reaction chamber 32 for controlling the opening degree of communication between the material chamber 31 and the reaction chamber 32. CO 2 Transfer line 4Is respectively communicated with the reaction chamber 32 and the breathing mask 6 at two ends, and CO 2 The transfer line 4 is used for CO generated by the occupant at the respiratory mask 6 2 To the reaction chamber 32.O (O) 2 The two ends of the transmission pipeline 5 are respectively communicated with the reaction chamber 32 and the breathing mask 6, O 2 The transmission pipeline 5 is used for generating O in the reaction chamber 32 2 To the respiratory mask 6. As shown in fig. 9, the control unit 1 is configured to control the reaction control device 33 to adjust the opening of communication between the material chamber 31 and the reaction chamber 32 based on the oxygen concentration in the vehicle detected by the oxygen concentration sensor 2, wherein, when the material chamber 31 and the reaction chamber 32 are in communication, CO in the reaction chamber 32 2 With Na in the material chamber 31 2 O 2 Reaction to produce O 2 。
Wherein the oxygen concentration in the vehicle may also be referred to as C c (Current Ambient Oxygen Concentration, real-time oxygen concentration).
A number of chemical reactions take place in the reaction chamber 32: na (Na) 2 O 2 +H 2 O＝2NaOH+H 2 O 2 、2H 2 O 2 ＝2H 2 O+O 2 、2NaOH+CO 2 ＝Na 2 CO 3 +H 2 The total chemical reaction equation in the reaction chamber 32 is O: 2Na 2 O 2 +CO 2 ＝2Na 2 CO 3 +O 2 。
As shown in fig. 3, the in-vehicle oxygen supply device is powered by a power supply 100, and the power supply 100 is electrically connected to the control unit 1 and the oxygen concentration sensor 2.
The oxygen concentration sensor 2 includes two metal electrodes,Electrolyte solution, polymer diffusion breathable film and shell. The anode (working electrode) is porous platinum, the cathode (counter electrode) is lead, and the two electrodes are immersed in KOH solution. When in operation, oxygen molecules in the environment enter the oxygen concentration sensor 2 through the macromolecule diffusion ventilation membrane to carry out chemical reaction, oxygen is reduced into hydroxyl ions at the anode, and lead at the cathode is oxidized. The current output in the electrochemical reaction depends on the number of oxygen molecules diffused to the anode, and the diffusion rate of the oxygen molecules is proportional to the oxygen concentration in the environment, so that the magnitude of the output current in the oxygen concentration sensor 2 is only related to the oxygen concentration in the environment. Thus, by measuring the output current of the oxygen concentration sensor 2, the C in the environment can be known c (Current Ambient Oxygen Concentration, real-time oxygen concentration). The output current of the oxygen concentration sensor 2 is converted to output an electric signal containing oxygen concentration information, and the electric signal is transmitted to the control unit 1 for the next operation.
CO exhaled by the occupant 2 After entering the reaction chamber 32, the reaction chamber is filled with Na in the material chamber 31 2 O 2 Contact, thereby producing a chemical reaction. The reaction control device 33 controls the CO by controlling the opening degree of communication between the material chamber 31 and the reaction chamber 32 2 With Na and Na 2 O 2 To control CO 2 With Na and Na 2 O 2 Is a reaction rate of (a).
The safety range of the oxygen concentration in the environment is 19.5 percent VOL to 23.5 percent VOL, C k (Standard Oxygen Concentration, ambient oxygen concentration standard value) was 20.9% vol. Thus, the first target density threshold may be set to 19.5% vol and the second target density threshold to 17% vol.
When the oxygen concentration in the vehicle is less than the first target concentration threshold, the reaction control device 33 controls communication between the material chamber 31 and the reaction chamber 32. When the oxygen concentration in the vehicle is greater than the second target concentration threshold and less than the first target concentration threshold, the smaller the oxygen concentration is, the greater the opening of communication between the material chamber 31 and the reaction chamber 32 is, and the greater the oxygen concentration is, the smaller the opening of communication between the material chamber 31 and the reaction chamber 32 is. When the oxygen concentration in the vehicle is less than the second target concentration threshold value, the reaction control means 33 controls the opening degree of communication between the material chamber 31 and the reaction chamber 32 to be maximum. When the oxygen concentration threshold value in the vehicle is greater than the first target concentration threshold value, the reaction control means 33 controls the opening degree of communication between the material chamber 31 and the reaction chamber 32 to be 0, that is, separates the material chamber 31 from the reaction chamber 32.
The oxygen concentration sensor 2 is electrically connected with the control unit 1 through the Ethernet, the speed of the Ethernet for transmitting signals is high, and the concentration of oxygen in the environment can be fed back to the control unit 1 in time.
The reaction control device 33 and the control unit 1 are electrically connected to each other through a CAN/CANFD bus, and the CAN/CANFD bus is low in cost, so that the use of the CAN/CANFD bus CAN reduce the manufacturing cost of the in-vehicle oxygen supply device.
The breathing mask 6 can intensively absorb CO 2 And concentrated supply of O 2 Compared with the diffusion supply of oxygen, the oxygen supply mode has higher efficiency and obtains O 2 Higher concentrations of (c).
The embodiment of the disclosure provides a vehicle-mounted oxygen supply device, na in an oxygen generation unit 3 in the oxygen supply device 2 O 2 Oxygen can be generated. The passengers wear the breathing mask 6 to exhale CO 2 By CO 2 The transmission pipeline 4 enters the reaction chamber 32, CO 2 With Na and Na 2 O 2 Chemical reaction occurs in the reaction chamber 32 and O is formed 2 . O formed in the reaction chamber 32 2 Through O 2 The transmission pipeline 4 enters the breathing mask 6, and O is inhaled when the passenger inhales 2 Thereby avoiding hypoxia. Since oxygen supply device stores oxygen not in gaseous or liquid state but in O form 2 Na of (2) 2 O 2 。Na 2 O 2 Is solid, is easier to store, and occupies a smaller volume, so that the oxygen supply device can provide more oxygen in a limited space. In addition, the control unit 1 controls the reaction control device 33 to adjust the opening degree of communication between the material chamber 31 and the reaction chamber 32 according to the oxygen concentration in the vehicle, thereby controlling O 2 Is a rate of generation of (a). Thus, the reaction chamber 32 can generate O when the oxygen concentration is low 2 Can also ensure that Na is not consumed when the oxygen concentration is high 2 O 2 . Next, an exemplary embodiment of the reaction control device 33 for controlling the opening degree of communication between the material chamber 31 and the reaction chamber 32 will be described:
in some examples, as shown in fig. 4 and 5, the reaction control device 33 includes a first control board 331, a second control board 332, and a driver 333. The first control plate 331 has a first hole 331a, the second control plate 332 has a second hole 332a, and the material chamber 31 and the reaction chamber 32 are communicated through a superposition portion between the first hole 331a and the second hole 332a. The driving member 333 is configured to drive the first control board 331 and/or the second control board 332 to translate, so as to adjust the size of the overlapping portion between the first hole 331a and the second hole 332a.
The first control board 331 and the second control board 332 may be rectangular, and the length, width and thickness of the first control board 331 and the second control board 332 may be equal. The number of the first holes 331a and the number of the second holes 332a may be plural, and the number of the first holes 331a and the number of the second holes 332a may be equal.
It is understood that the opening of the communication between the material chamber 31 and the reaction chamber 32 is related to the size of the overlapping portion between the first hole 331a and the second hole 332a. As shown in fig. 6, when the first hole 331a and the second hole 332a are completely overlapped, the opening degree of communication between the material chamber 31 and the reaction chamber 32 is maximized. When the first hole 331a and the second hole 332a are completely staggered, that is, the area of the overlapping portion between the first hole 331a and the second hole 332a is 0, the material chamber 31 and the reaction chamber 32 are completely separated.
Next, an exemplary implementation of the driver 333 of the reaction control apparatus 33 will be described:
as shown in fig. 7, the driving member 333 includes a motor 3331 and a gear 3332, and the motor 3331 is in driving connection with the gear 3332. At least one of the first control plate 331 and the second control plate 332 has a rack 3311, and the rack 3311 is engaged with the gear 3332. When the motor 3331 rotates, the gear 3332 also rotates at any time, so that the gear 3332 can push the rack 3311 to move. When the first control board 331 has the rack 3311, the motor 3331 may drive the first control board 331 to translate through the rack 3311. When the second control board 332 has the rack 3311, the motor 3331 may drive the second control board 332 to translate through the rack 3311.
In other examples, the first control plate 331 and the second control plate 332 may each have a rack 3311 thereon, and the rack 3311 of the first control plate 331 is disposed opposite to the rack 3311 of the second control plate 332, and the gear 3332 is disposed between the two racks 3311 and engaged with the two racks 3311, respectively, such that the gear 3332 can drive the first control plate 331 and the second control plate 332 to translate relatively or reversely when the motor 3331 rotates.
It should be noted that the portions of the first control plate 331 and the second control plate 332 other than the rack 3311 should be closely attached, so that a gap is avoided between the first control plate 331 and the second control plate 332. Otherwise, when the area of the overlapping portion of the first hole 331a and the second hole 332a is 0, CO 2 And still pass through the first hole 331a and the second hole 332a through the gap.
In other examples, the drive 333 may also include a motor and a ball screw. The ball screw comprises a screw rod and a nut, and the motor is in transmission connection with the screw rod. When the driving part 333 is in transmission connection with the first control board 331, the screw rod passes through the side surface of the first control board 331, and the nut is fixedly connected with the first control board 331, when the motor works, the motor drives the screw rod to rotate, and at the moment, the nut moves linearly along the screw rod, so that the first control board 331 is driven to translate. It should be noted that, when the screw rod passes through the first control plate 331, the first hole 331a should be avoided.
Of course, in other examples, the screw may pass through the side of the second control plate 332 to drive translation of the second control plate 332.
Since a large amount of heat is released when a chemical reaction occurs in the reaction chamber 32, the oxygen generating unit 3 further includes a temperature control device 34 and a heat dissipating device 35 as shown in fig. 1, at least a part of the temperature control device 34 is fixed inside the reaction chamber 32, and the heat dissipating device 35 is fixed outside the reaction chamber 32. As shown in fig. 10, the control unit 1 is configured to: when the temperature in the reaction chamber 32 detected by the temperature control device 34 is higher than the target temperature threshold, the heat sink 35 is controlled to be turned on. When the temperature detected by the temperature control device 34 is lower than the target temperature threshold, the heat sink 35 is controlled to be turned off. After the heat dissipation device 35 is opened, the reaction chamber 32 can be cooled, so that the reaction chamber 32 and surrounding components are prevented from being damaged by heating. Due to the regulating action of the temperature control device 34 and the heat sink 35, the temperature inside the reaction chamber 32 can be maintained near the target temperature threshold.
Wherein the target temperature threshold may also be referred to as T ort (Optimum Reaction Temperature ), na 2 0 2 With CO 2 The reaction rate is fastest at the target temperature threshold. The temperature in the reaction chamber 32 can be maintained near the target temperature threshold to facilitate Na 2 0 2 With CO 2 The fastest reaction rate is maintained at a certain contact area.
The heat sink 35 may be a water-cooled heat sink, and the pipe of the heat sink 35 may be tightly surrounded on the outside of the reaction chamber 32, so as to increase the heat dissipation area.
Since the reactant and the product in the reaction chamber 32 each include a gas, the gas pressure in the reaction chamber 32 changes. In order to maintain the pressure in the reaction chamber 32 within a safe range all the time, the oxygen generating unit 3 further includes a pressure release valve 36 for communicating the inside and outside of the reaction chamber 32 when the pressure inside the reaction chamber 32 is greater than a target pressure threshold. As shown in fig. 1, the relief valve 36 is fixed to the outside of the reaction chamber 32, and when the pressure inside the reaction chamber 32 is greater than the target pressure threshold, the relief valve 44 is opened, thereby reducing the pressure inside the reaction chamber 32.
Next, for O 2 The implementation of the transfer line 5 is illustrated by way of example:
in some examples, as shown in FIG. 1, O 2 The transfer line 5 comprises a first one-way valve 51 and a filter 52, the filter 52 being located between the reaction chamber 32 and the first one-way valve 51. The reaction chamber 32, the filter 52 and the air inlet of the first check valve 51 are sequentially communicated through a gas conduit, and the air outlet of the first check valve 51 is communicated with the breathing mask 6 through a gas conduit. When the passenger wears the breathing mask 6, the first check valve 51 is closed when the passenger exhales, so that the CO exhaled by the passenger 2 By CO 2 The transfer line 4 enters the reaction chamber 32. The first check valve 51 opens when the occupant inhales, so that O in the reaction chamber 32 2 Through the first one-way valve 51 and into the breathing mask 6.
Since the reaction chamber 32 is communicated with the material chamber 31, O is output from the reaction chamber 32 2 May be mixed with Na 2 O 2 And (3) powder. Therefore, a filter 52 is provided to filter Na 2 O 2 Powder, thereby avoiding the occupant from inhaling Na 2 O 2 And (3) powder. In addition, na can be avoided 2 O 2 The powder blocks the first check valve 51.
Next, for CO 2 The implementation of the transfer line 4 is illustrated by way of example:
in some examples, as shown in FIG. 1, CO 2 The transfer line 4 includes a second check valve 41 and a humidifier 42, the second check valve 41 and the humidifier 42 being in communication through a gas conduit.
When the passenger wears the breathing mask 6, the second check valve 41 is opened when the passenger exhales, and the passenger exhales CO 2 By CO 2 The transfer line 4 enters the reaction chamber 32. When the occupant inhales, the second check valve 41 closes, so that O in the reaction chamber 32 2 Through the first one-way valve 51 and into the breathing mask 6.
Due to the requirement of H in the reaction chamber 32 2 O participates in the reaction, so the humidifier 42 is provided to provide H to the reaction chamber 32 2 O. CO exhaled by the occupant 2 Can be carried with water vapor after passing through the humidifier 42The gas enters the reaction chamber 32.
The relative positions of the second check valve 41 and the humidifier 42 are not particularly limited in the embodiment of the present disclosure, and the breathing mask 6, the humidifier 42, the second check valve 41 and the reaction chamber 32 may be sequentially communicated through a gas conduit, or the breathing mask 6, the second check valve 41, the humidifier 42 and the reaction chamber 32 may be sequentially communicated through a gas conduit. That is, the positions of the second check valve 41 and the humidifier 42 can be interchanged.
The embodiment of the disclosure also provides a vehicle, which comprises the vehicle-mounted oxygen supply device.
Wherein the breathing mask 6 is located inside the vehicle.
The embodiment of the present disclosure also provides a control method of a vehicle-mounted oxygen supply device, where the control method is applied to the control unit 1 of the vehicle-mounted oxygen supply device, as shown in fig. 8, and the control method includes the following steps:
in step 801, the concentration of oxygen in the vehicle detected by the oxygen concentration sensor 2 is acquired. The oxygen concentration sensor 2 transmits a signal containing information on the concentration of oxygen in the vehicle to the control unit 1.
In step 802, the control unit 1 controls the reaction control device 33 to adjust the opening degree of communication between the material chamber 31 and the reaction chamber 32 based on the concentration of oxygen in the vehicle detected by the oxygen concentration sensor 2.
Wherein when the concentration of oxygen in the vehicle detected by the oxygen concentration sensor 2 is less than the first target concentration threshold, the reaction control means 33 controls communication between the material chamber 31 and the reaction chamber 32. When the oxygen concentration in the vehicle is greater than the second target concentration threshold value and less than the first target concentration threshold value, the reaction control means 33 controls the opening degree of communication between the material chamber 31 and the reaction chamber 32 to be greater as the oxygen concentration is smaller. When the oxygen concentration in the vehicle is less than the second target concentration threshold value, the reaction control means 33 controls the opening degree of communication between the material chamber 31 and the reaction chamber 32 to be maximum. When the oxygen concentration threshold value in the vehicle is greater than the first target concentration threshold value, the reaction control means 33 controls the opening degree of communication between the material chamber 31 and the reaction chamber 32 to be 0, that is, separates the material chamber 31 from the reaction chamber 32.
In some examples, when the reaction control device 33 includes a first control board 331, a second control board 332, and a driving member 333, and the first control board 331 has a first hole 331a thereon, and the second control board 332 has a second hole 332a thereon, the control unit 1 controls the reaction control device 33 to separate or communicate the material chamber 31 and the reaction chamber 32, including:
the driving member 333 drives the first control plate 331 and/or the second control plate 332 to translate, and adjusts the size of the overlapping portion between the first hole 331a and the second hole 332a.
Wherein, when the area of the overlapping portion between the first hole 331a and the second hole 332a is 0, the reaction control device 33 separates the material chamber 31 and the reaction chamber 32. When the first hole 331a and the second hole 332a are completely coincident, the reaction control device 33 communicates with the material chamber 31 and the reaction chamber 32.
In some examples, the control unit 1 controls the heat sink 35 to be turned on when the temperature detected by the temperature control device 34 is higher than the target temperature threshold. When the temperature detected by the temperature control device 34 is lower than the target temperature threshold, the control unit 1 controls the heat sink 35 to be turned off.
The foregoing description of the preferred embodiments of the present disclosure is provided for the purpose of illustration only, and is not intended to limit the disclosure to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, alternatives, and alternatives falling within the spirit and scope of the disclosure.
Claims (10)
1. The vehicle-mounted oxygen supply device is characterized by comprising a control unit (1), an oxygen concentration sensor (2), an oxygen generation unit (3) and CO 2 Transmission pipeline (4), O 2 A transmission pipeline (5) and a breathing mask (6);
the oxygen generating unit (3) comprises a material chamber (31), a reaction chamber (32) and a reaction control device (33), wherein Na is arranged in the material chamber (31) 2 O 2 The reaction control device (33) is positioned between the material chamber (31) and the reaction chamber (32) and is used for controlling the communication opening degree between the material chamber (31) and the reaction chamber (32);
the CO 2 Two ends of the transmission pipeline (4) are respectively communicated with the reaction chamber (32) and the breathing mask (6), the two ends of the transmission pipeline are respectively communicated withThe CO 2 A transfer line (4) for CO generated by the passenger at the breathing mask (6) 2 To the reaction chamber (32);
the O is 2 Two ends of the transmission pipeline (5) are respectively communicated with the reaction chamber (32) and the breathing mask (6), and the O is as follows 2 A transmission pipeline (5) is used for generating O in the reaction chamber (32) 2 To the respiratory mask (6);
the control unit (1) is configured to control the reaction control device (33) to adjust the opening degree of communication between the material chamber (31) and the reaction chamber (32) based on the oxygen concentration in the vehicle detected by the oxygen concentration sensor (2), wherein, when the material chamber (31) and the reaction chamber (32) are communicated, CO in the reaction chamber (32) 2 And Na in the material chamber (31) 2 O 2 Reaction to produce O 2 。
2. The vehicle-mounted oxygen supply apparatus according to claim 1, wherein the reaction control apparatus (33) includes a first control board (331), a second control board (332), and a driving member (333);
the first control plate (331) is provided with a first hole (331 a), the second control plate (332) is provided with a second hole (332 a), and the material chamber (31) and the reaction chamber (32) are communicated through the superposition part between the first hole (331 a) and the second hole (332 a);
the driving piece (333) is used for driving the first control board (331) and/or the second control board (332) to translate so as to adjust the size of the superposition part between the first hole (331 a) and the second hole (332 a).
3. The vehicle-mounted oxygen supply device according to claim 2, wherein the driving member (333) comprises a motor (3331) and a gear (3332), and the motor (3331) is in transmission connection with the gear (3332);
at least one of the first control plate (331) and the second control plate (332) has a rack (3311), and the rack (3311) is meshed with the gear (3332).
4. A vehicle-mounted oxygen supply device according to any one of claims 1-3, characterized in that the oxygen generating unit (3) further comprises a temperature control device (34) and a heat dissipating device (35), wherein at least a part of the temperature control device (34) is fixed inside the reaction chamber (32), and wherein the heat dissipating device (35) is fixed outside the reaction chamber (32);
the control unit (1) is configured to control the heat dissipation device (35) to be turned on when the temperature inside the reaction chamber (32) detected by the temperature control device (34) is higher than a target temperature threshold;
and when the temperature detected by the temperature control device (34) is lower than the target temperature threshold value, controlling the heat dissipation device (35) to be closed.
5. A vehicle-mounted oxygen supply apparatus according to any one of claims 1-3, wherein the oxygen generating unit (3) further comprises a pressure release valve (36), the pressure release valve (36) being adapted to communicate the interior and exterior of the reaction chamber (32) when the pressure inside the reaction chamber (32) is greater than a target pressure threshold.
6. A vehicle-mounted oxygen supply apparatus according to any one of claims 1 to 3, wherein the O 2 The transmission pipeline (5) comprises a first one-way valve (51) and a filter (52);
the reaction chamber (32), the filter (52), the first one-way valve (51) and the breathing mask (6) are communicated in sequence.
7. A vehicle-mounted oxygen supply apparatus according to any one of claims 1 to 3, wherein the CO 2 The transmission pipeline (4) comprises a second one-way valve (41) and a humidifier (42).
8. A vehicle comprising the on-board oxygen supply device according to any one of claims 1 to 7.
9. A control method of a vehicle-mounted oxygen supply device, characterized in that the control method is applied in a control unit (1) of a vehicle-mounted oxygen supply device according to any one of claims 1-7, the control method comprising:
acquiring the oxygen concentration in the vehicle detected by the oxygen concentration sensor (2);
the reaction control device (33) is controlled to adjust the opening degree of communication between the material chamber (31) and the reaction chamber (32) based on the oxygen concentration in the vehicle detected by the oxygen concentration sensor (2).
10. The control method according to claim 9, characterized in that when the oxygen producing unit (3) further comprises a temperature control device (34) and a heat dissipating device (35), the control method further comprises:
when the temperature detected by the temperature control device (34) is higher than a target temperature threshold value, controlling the heat dissipation device (35) to be opened;
and when the temperature detected by the temperature control device (34) is lower than the target temperature threshold value, controlling the heat dissipation device (35) to be closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310508741.XA CN116278651A (en) | 2023-05-06 | 2023-05-06 | Vehicle-mounted oxygen supply device, vehicle, and control method for vehicle-mounted oxygen supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310508741.XA CN116278651A (en) | 2023-05-06 | 2023-05-06 | Vehicle-mounted oxygen supply device, vehicle, and control method for vehicle-mounted oxygen supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116278651A true CN116278651A (en) | 2023-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310508741.XA Pending CN116278651A (en) | 2023-05-06 | 2023-05-06 | Vehicle-mounted oxygen supply device, vehicle, and control method for vehicle-mounted oxygen supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116278651A (en) |
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2023
- 2023-05-06 CN CN202310508741.XA patent/CN116278651A/en active Pending
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