Vehicle-mounted oxygen production and temperature regulation system and method

Abstract

The invention relates to a vehicle-mounted oxygen production and temperature regulation system and method.The vehicle-mounted oxygen production and temperature regulation system comprises an oxygen production mechanism and an air conditioning mechanism, the oxygen production mechanism comprises a compression assembly, an oxygen production assembly and an oxygen supply pipeline capable of being communicated with a vehicle cabin, the air conditioning mechanism comprises a driving motor, and the compression assembly comprises a cylinder body and a piston; the piston is movably arranged in the cylinder body, the piston is connected with an output shaft of the driving motor through a transmission structure and is driven by the driving motor to reciprocate in the cylinder body, an air inlet and an air outlet are formed in the cylinder body, and the air outlet is communicated with the oxygen supply pipeline through the oxygen generation assembly. According to the vehicle-mounted oxygen production and temperature regulation system and method, the problem that existing vehicle-mounted oxygen production and temperature regulation equipment occupies too large space is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automobile technology, in particular to a vehicle-mounted oxygen generation and temperature regulation system and method. BACKGROUND

[0002] During driving in a plateau cold zone, passengers are prone to hypoxia and fatigue, especially in an area with an altitude of more than 3000 meters, the atmospheric oxygen content is significantly reduced, in order to ensure driving safety and comfort, oxygen and heat need to be continuously supplied in the vehicle, therefore, an air conditioning system and an oxygen generation system need to be integrated on the vehicle.

[0003] The existing air conditioning system and oxygen generation system operate independently, and two sets of equipment need to be separately arranged, which occupies a large space and causes the vehicle interior space to be invaded. SUMMARY

[0004] The main purpose of the present application is to provide a vehicle-mounted oxygen generation and temperature regulation system and method, which aims to solve the problem of excessive space occupation of the existing vehicle-mounted oxygen generation and temperature regulation equipment.

[0005] In order to achieve the above-mentioned purpose, the vehicle-mounted oxygen generation and temperature regulation system provided by the present application comprises an oxygen generation mechanism and an air conditioning mechanism, the oxygen generation mechanism comprises a compression assembly, an oxygen generation assembly and an oxygen supply pipeline which can communicate with a vehicle cabin, the air conditioning mechanism comprises a driving motor, the compression assembly comprises a cylinder body and a piston, the piston is movably arranged in the cylinder body, the piston is connected with the output shaft of the driving motor through a transmission structure and is driven by the driving motor to reciprocate in the cylinder body, the cylinder body is provided with an air inlet and an air outlet, and the air outlet is communicated with the oxygen supply pipeline through the oxygen generation assembly.

[0006] According to some embodiments of the present application, an oxygen concentration sensor is further arranged to detect the oxygen concentration in the vehicle, the compression assembly is provided with two, the air inlets of the two compression assemblies are communicated through an air inlet pipe, the air outlets of the two compression assemblies are communicated through an air outlet pipe, the air outlet pipe is communicated with the oxygen generation assembly, and the air inlet pipe is provided with an electromagnetic valve which can be controlled according to the oxygen concentration in the vehicle.

[0007] According to some embodiments of the present application, the transmission structure comprises an eccentric part and a connecting rod, one end of the eccentric part is connected with the output shaft of the driving motor, and the other end is rotatably connected with the connecting rod, and one end of the connecting rod away from the eccentric part is rotatably connected with the piston.

[0008] According to some embodiments of the present application, the air conditioning mechanism further comprises an air outlet pipeline and an air outlet, and the oxygen supply pipeline and the air outlet pipeline are both communicated with the air outlet.

[0009] According to some embodiments of the present invention, a mixing mechanism is further included, wherein the mixing mechanism has a mixing chamber for accommodating and mixing oxygen-supplying cold air and air conditioning hot air, and a pressure gauge for detecting the air pressure in the mixing chamber is provided in the mixing chamber. The oxygen supply pipe and the air outlet pipe are both connected to the air outlet through the mixing chamber. The oxygen supply pipe is provided with a first flow valve and a first thermometer, the air outlet pipe is provided with a second flow valve and a second thermometer, and the air outlet is provided with a third thermometer. The opening degree of the first flow valve and the second flow valve can be adjusted according to the temperature detected by the first thermometer, the second thermometer and the third thermometer and the air pressure detected by the pressure gauge.

[0010] In addition, the present invention also provides an oxygen production and temperature control method, comprising the following steps:

[0011] The oxygen concentration inside the vehicle is measured after the air conditioning system is activated.

[0012] The system operating mode and oxygen output mode are adjusted according to the oxygen concentration inside the vehicle.

[0013] When the system is in mixed mode and the oxygen output mode is in diffusion mode, the opening adjustment strategy of the first flow valve and the second flow valve is determined based on the required temperature, required air velocity, oxygen supply pipeline temperature, air outlet pipeline temperature, current air outlet temperature and current air outlet air velocity.

[0014] The opening degree of the first flow valve and the second flow valve is controlled according to the opening degree adjustment strategy.

[0015] According to some embodiments of the present invention, the strategy for determining the opening adjustment of the first flow valve and the second flow valve based on the required temperature, required air velocity, oxygen supply pipe temperature, air outlet pipe temperature, current air outlet temperature, and current air outlet air velocity includes:

[0016] Obtain the required temperature and the required wind speed;

[0017] Obtain the temperature of the oxygen supply pipeline, the temperature of the air outlet pipeline, and the current air outlet temperature;

[0018] The opening ratio between the first flow valve and the second flow valve is determined based on the required temperature, the oxygen supply pipe temperature, the air outlet pipe temperature, and the current air outlet temperature.

[0019] Obtain the current air outlet wind speed;

[0020] The opening values ​​of the first flow valve and the second flow valve are determined based on the required wind speed, the current air outlet wind speed, and the opening ratio.

[0021] According to some embodiments of the present invention, determining the opening ratio between the first flow valve and the second flow valve based on the required temperature, the oxygen supply pipe temperature, the air outlet pipe temperature, and the current air outlet temperature includes:

[0022] The initial opening ratio is calculated based on the required temperature, the oxygen supply pipe temperature, and the air outlet pipe temperature.

[0023] The opening degrees of the first flow valve and the second flow valve are controlled according to the initial opening degree ratio, and the current air outlet temperature is obtained.

[0024] The temperature difference is calculated based on the current air outlet temperature and the required temperature.

[0025] If the temperature difference is less than the first preset threshold, then the initial opening ratio is used as the opening ratio between the first flow valve and the second flow valve.

[0026] If the temperature difference is greater than the first preset threshold and the current air outlet temperature is greater than the required temperature, the opening ratio is increased, and the opening of the first flow valve and the second flow valve is controlled according to the new opening ratio to obtain the current air outlet temperature until the temperature difference is less than the first preset threshold, and the current opening ratio is used as the opening ratio between the first flow valve and the second flow valve.

[0027] If the temperature difference is greater than the first preset threshold and the current air outlet temperature is less than the required temperature, the opening ratio is reduced, and the opening of the first flow valve and the second flow valve is controlled according to the new opening ratio to obtain the current air outlet temperature until the temperature difference is less than the first preset threshold. The current opening ratio is then used as the opening ratio between the first flow valve and the second flow valve.

[0028] According to some embodiments of the present invention, determining the opening values ​​of the first flow valve and the second flow valve based on the required wind speed, the current outlet wind speed, and the opening ratio includes:

[0029] Obtain the air outlet area;

[0030] The total required air volume is calculated based on the required wind speed and the area of ​​the air outlet.

[0031] Obtain the maximum flow rate of the oxygen supply pipeline and the maximum flow rate of the air outlet pipeline;

[0032] The initial opening values ​​of the first flow valve and the second flow valve are calculated based on the total required air volume, the maximum flow rate of the oxygen supply pipeline, the maximum flow rate of the air outlet pipeline, and the opening ratio.

[0033] The opening degrees of the first flow valve and the second flow valve are controlled according to the two initial opening values, and the current air outlet wind speed is obtained.

[0034] The wind speed difference is calculated based on the current air outlet wind speed and the required wind speed.

[0035] If the wind speed difference is less than the second preset threshold, then the two initial opening values ​​are used as the opening values ​​of the first flow valve and the second flow valve.

[0036] If the wind speed difference is greater than the second preset threshold and the current air outlet wind speed is greater than the required wind speed, then the opening ratio is reduced by two opening values ​​simultaneously. The opening of the first flow valve and the second flow valve is controlled according to the two new opening values ​​to obtain the current air outlet wind speed until the wind speed difference is less than the second preset threshold. The two current opening values ​​are then used as the opening values ​​of the first flow valve and the second flow valve.

[0037] If the wind speed difference is greater than the second preset threshold and the current air outlet wind speed is less than the required wind speed, then the opening value is increased simultaneously by the opening ratio by two values. The opening of the first flow valve and the second flow valve is controlled according to the two new opening values ​​to obtain the current air outlet wind speed until the wind speed difference is less than the second preset threshold. The two current opening values ​​are then used as the opening values ​​of the first flow valve and the second flow valve.

[0038] According to some embodiments of the present invention, obtaining the current air outlet wind speed includes:

[0039] Get the current mixing chamber pressure;

[0040] Obtain the ambient pressure and air density at the air outlet;

[0041] The current air outlet wind speed is calculated based on the current mixing chamber air pressure, the air outlet ambient pressure, and the air density.

[0042] The present invention has at least the following beneficial effects:

[0043] In this invention, the piston of the compression assembly is connected to the output shaft of the drive motor via a transmission structure, causing the piston to reciprocate within the cylinder driven by the drive motor. This compresses external air entering through the intake port within the cylinder and outputs it to the oxygen generation assembly through the outlet. As the compressed air flows through the oxygen generation assembly, nitrogen is adsorbed, and the remaining gas is enriched into a high concentration of oxygen, which is then output to the vehicle cabin via the oxygen supply pipe to provide oxygen. In this invention, the oxygen generation mechanism and the air conditioning mechanism share the drive motor, eliminating the need for a separate drive component for the oxygen generation mechanism, reducing space requirements, and improving system integration. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a schematic diagram of the structure of an on-board oxygen generation and temperature control system provided in an embodiment of the present invention;

[0046] Figure 2 for Figure 1 A schematic diagram of the structure of the intermediate compression assembly and the drive motor in operation;

[0047] Figure 3 for Figure 1 A schematic diagram of the switching structure;

[0048] Figure 4 This is a schematic flowchart of the first embodiment of the oxygen generation and temperature regulation method of the present invention;

[0049] Figure 5 This is a schematic flowchart of the second embodiment of the oxygen generation and temperature regulation method of the present invention;

[0050] Figure 6 This is a schematic flowchart of the third embodiment of the oxygen generation and temperature regulation method of the present invention;

[0051] Figure 7 This is a schematic flowchart of the fourth embodiment of the oxygen generation and temperature regulation method of the present invention;

[0052] Figure 8 This is a schematic flowchart of the fifth embodiment of the oxygen generation and temperature regulation method of the present invention.

[0053] Explanation of reference numerals in the attached figures:

[0054] 100-On-board oxygen generation and temperature control system; 1-Oxygen generation mechanism; 11-Compression assembly; 111-Cylinder block; 112-Transmission structure; 1121-Eccentric component; 1122-Connecting rod; 12-Oxygen generation assembly; 121-Rotary valve; 122-Molecular sieve adsorption cylinder; 13-Oxygen supply pipeline; 14-Solenoid valve; 15-Inlet pipe; 16-Outlet pipe; 17-First flow valve; 18-First thermometer; 19-Filter; 2-Air conditioning mechanism; 21-Outlet duct; 22-Outlet; 23-Drive motor; 24-Second flow valve; 25-Second thermometer; 26-Third thermometer; 27-Condenser; 28-Expansion valve; 29-Evaporator; 3-Oxygen concentration sensor; 4-Mixing mechanism; 41-Mixing chamber; 42-Pressure gauge; 5-Switching mechanism; 51-Blade; 52-Oxygen outlet pipe; 6-Nasal oxygen supply module; 61-Oxygen nozzle. Detailed Implementation

[0055] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0056] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0057] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0058] This invention provides an on-board oxygen generation and temperature control system and method. Figures 1 to 8 This is a specific embodiment of an on-board oxygen generation and temperature control system and method provided by the present invention.

[0059] like Figure 1 and Figure 2 As shown, this embodiment of the invention provides an in-vehicle oxygen generation and temperature control system 100, including an oxygen generation mechanism 1 and an air conditioning mechanism 2. The oxygen generation mechanism 1 includes a compression assembly 11, an oxygen generation assembly 12, and an oxygen supply pipe 13 that can communicate with the vehicle cabin. The air conditioning mechanism 2 includes a drive motor 23. The compression assembly 11 includes a cylinder 111 and a piston. The piston is movably disposed in the cylinder 111. The piston is connected to the output shaft of the drive motor 23 through a transmission structure 112 and is driven by the drive motor 23 to reciprocate within the cylinder 111. The cylinder 111 is provided with an air inlet and an air outlet. The air outlet is connected to the oxygen supply pipe 13 through the oxygen generation assembly 12.

[0060] In this invention, the piston of the compression assembly 11 is connected to the output shaft of the drive motor 23 via a transmission structure 112, causing the piston to reciprocate within the cylinder 111 driven by the drive motor 23. This allows external air entering from the intake port to be compressed within the cylinder 111 and output from the outlet to the oxygen generating assembly 12. As the compressed air flows through the oxygen generating assembly 12, nitrogen is adsorbed, and the remaining gas is enriched into a high concentration of oxygen, which is then output to the vehicle cabin via the oxygen supply pipe 13 to provide oxygen. In this invention, the oxygen generating mechanism 1 and the air conditioning mechanism 2 share the drive motor 23, eliminating the need for a separate drive component for the oxygen generating mechanism 1, reducing space requirements, and improving system integration.

[0061] It should be noted that the drive motor 23 is actually a compressor, and the air conditioning mechanism 2 also includes a condenser 27, an expansion valve 28, an evaporator 29 and a blower. All of the above components are components in existing vehicle air conditioning systems, and their specific positions and connections will not be described in detail.

[0062] In some embodiments, such as Figure 1 As shown, the air conditioning unit 2 also includes an air outlet duct 21 and an air outlet 22, and both the oxygen supply duct 13 and the air outlet duct 21 are connected to the air outlet 22. This arrangement, by having the oxygen generating unit 1 and the air conditioning unit 2 share the same air outlet 22, further reduces the space occupied and improves system integration.

[0063] When a vehicle travels in a high-altitude, cold region, it needs to supply both heat and oxygen to the vehicle interior simultaneously. However, since the oxygen in the oxygen generator 1 comes from outside air, and the outside air temperature in high-altitude, cold regions is low, the oxygen output from the oxygen supply pipe 13 is also low. At this time, the air outlet 22 simultaneously outputs both hot air from the air conditioner and cold air from the oxygen supply pipe, resulting in a difference between the temperature of the gas output from the air outlet 22 and the user's desired temperature. Furthermore, the wind speed from the air outlet 22 also differs from the user's desired wind speed. Therefore, to improve user comfort, in some embodiments, such as... Figure 1As shown, the vehicle-mounted oxygen generation and temperature control system 100 also includes a mixing mechanism 4. The mixing mechanism 4 has a mixing chamber 41 that can accommodate and mix oxygen supply cold air and air conditioning hot air. The mixing chamber 41 is equipped with a pressure gauge 42 for detecting the air pressure in the mixing chamber 41. The oxygen supply pipe 13 and the air outlet pipe 21 are both connected to the air outlet 22 through the mixing chamber 41. The oxygen supply pipe 13 is equipped with a first flow valve 17 and a first thermometer 18. The air outlet pipe 21 is equipped with a second flow valve 24 and a second thermometer 25. The air outlet 22 is equipped with a third thermometer 26. The opening degree of the first flow valve 17 and the second flow valve 24 can be adjusted according to the temperature detected by the first thermometer 18, the second thermometer 25 and the third thermometer 26 and the air pressure detected by the pressure gauge 42. With this configuration, the oxygen-supplying cold air input from the oxygen supply pipe 13 and the air-conditioned hot air input from the air outlet pipe 21 are first mixed in the mixing chamber 41 and then output from the air outlet 22. By adjusting the opening of the first flow valve 17 and the second flow valve 24, the flow rates of the oxygen-supplying cold air and the air-conditioned hot air output to the mixing chamber 41 can be adjusted, thereby regulating the temperature and air velocity of the gas output from the air outlet 22. It should be noted that, in actual conditions, the opening of each flow valve is not linearly related to the output flow rate.

[0064] Furthermore, in some embodiments, such as Figure 1 and Figure 2 As shown, the vehicle-mounted oxygen generation and temperature control system 100 also includes an oxygen concentration sensor 3 for detecting the oxygen concentration inside the vehicle. Two compression assemblies 11 are provided, with their inlets connected by an intake pipe 15 and their outlets connected by an outlet pipe 16. The outlet pipe 16 is connected to the oxygen generation assembly 12. A solenoid valve 14 is provided on the intake pipe 15, and the solenoid valve 14 can be switched on and off according to the oxygen concentration inside the vehicle. This configuration increases the air compression efficiency by increasing the number of compression assemblies 11. Simultaneously, the oxygen concentration sensor 3 detects the oxygen concentration inside the vehicle, and the solenoid valve 14 connected to the intake pipe 15 allows outside air to enter when the oxygen concentration is low, thus starting the oxygen generation mechanism 1 to supply oxygen. When the oxygen concentration is high, the solenoid valve 14 closes, stopping the oxygen generation mechanism 1 and preventing excessively high oxygen concentrations from causing danger.

[0065] Specifically, in some embodiments, the opening of the solenoid valve 14 can be adjusted by PID control according to the real-time changes in the oxygen concentration inside the vehicle, so that the oxygen concentration inside the vehicle is always maintained at around 21%.

[0066] The specific structure of the transmission structure 112 is not limited, as long as it ensures that the transmission structure 112 can convert the rotation of the output shaft of the drive motor 23 into the translation of the piston. For example, in some embodiments, such as... Figure 2 As shown, the transmission structure 112 includes an eccentric member 1121 and a connecting rod 1122. One end of the eccentric member 1121 is connected to the output shaft of the drive motor 23, and the other end is rotatably connected to the connecting rod 1122. The end of the connecting rod 1122 away from the eccentric member 1121 is rotatably connected to the piston.

[0067] If the occupants urgently need oxygen, relying solely on the oxygen supplied from the oxygen supply pipe 13 to diffuse throughout the cabin is insufficient to meet the demand for high-concentration oxygen supply in a short period. Therefore, in some embodiments, such as Figure 1 and Figure 3 As shown, the vehicle-mounted oxygen generation and temperature control system 100 also includes a switching mechanism 5 and a nasal oxygen supply module 6. The switching mechanism 5 is located in the mixing chamber 41. The oxygen supply pipe 13 and the nasal oxygen supply module 6 are connected through the switching mechanism 5. The switching mechanism 5 includes an oxygen outlet pipe 52 and multiple blades 51. The oxygen outlet pipe 52 is equipped with an electrically controlled valve. The oxygen outlet pipe 52 and the oxygen supply pipe 13 are connected through the multiple blades 51. The multiple blades 51 are arranged radially, and the roots of the multiple blades 51 are spaced apart in the circumferential direction of the oxygen supply pipe 13 to form a gas channel communicating with the oxygen supply pipe 13 and the oxygen outlet pipe 52, so that the oxygen inhalation nozzle 61 of the nasal oxygen supply module 6 passes through the oxygen outlet pipe 52 and the gas channel in sequence and is detachably connected to the oxygen supply pipe 13. With this configuration, when the oxygen output mode is diffusion mode, the electronically controlled valve is closed, and oxygen flows through the oxygen supply pipe 13 and is dispersed from the gaps between the blades 51. When the oxygen output mode is nasal oxygen supply mode, the electronically controlled valve is opened, and the occupants manually insert the oxygen inhalation nozzle 61 of the nasal oxygen supply module 6 and connect it to the oxygen supply pipe 13, so that oxygen is directly output from the nasal oxygen supply module 6 to meet the short-term high-concentration oxygen supply needs.

[0068] It should be noted that, since the diffusion mode requires a larger oxygen flow rate, while the nasal oxygen supply mode requires a smaller oxygen flow rate, in some embodiments, the eccentric member 1121 is connected to the output shaft of the drive motor 23 via a reducer with a disconnect mechanism. With this configuration, when in nasal oxygen supply mode, the reducer slows down the rotation speed of the eccentric member 1121, thereby slowing down the piston's movement speed and reducing the compressed air flow rate to decrease the oxygen flow rate. The reducer with the disconnect mechanism is prior art, and its specific structure will not be described in detail.

[0069] In some embodiments, such as Figure 1As shown, the oxygen generating assembly 12 includes a rotary valve 121 and two molecular sieve adsorption cylinders 122. Both molecular sieve adsorption cylinders 122 are connected to the oxygen supply pipeline 13 via the rotary valve 121. Compressed air can alternately enter the two molecular sieve adsorption cylinders 122 by rotating the sliding plate inside the rotary valve 121. When compressed air flows through the rotary valve 121 and is delivered to one of the molecular sieve adsorption cylinders 122, the molecular sieve adsorption cylinder 122 adsorbs and removes nitrogen from the compressed air. When the molecular sieve adsorption cylinder 122 contains sufficient compressed air, the sliding plate of the rotary valve 121 rotates to allow compressed air to enter the other molecular sieve adsorption cylinder 122. This arrangement allows sufficient time for the compressed air to contact the adsorption medium in the molecular sieve adsorption cylinder 122, thereby improving the nitrogen adsorption and removal effect, and also increasing the oxygen generating efficiency of the oxygen generating assembly 12.

[0070] Specifically, in some embodiments, the molecular sieve adsorption cylinder 122 is filled with activated carbon to adsorb oil gas and water vapor.

[0071] Furthermore, in some embodiments, such as Figure 1 As shown, the outlet of the compression assembly 11 and the inlet of the rotary valve 121 are connected by a filter 19. This configuration allows the filter 19 to filter oil vapor, water vapor, and impurities, thereby improving the nitrogen removal efficiency of the subsequent molecular sieve adsorption cylinder 122.

[0072] Those skilled in the art will understand that the above-described structure does not constitute a limitation on the vehicle-mounted oxygen generation and temperature regulation system 100, and may include more or fewer components than described above, or combine certain components, or have different component arrangements.

[0073] like Figure 4 As shown, based on the vehicle-mounted oxygen generation and temperature control system 100, this embodiment of the invention provides an oxygen generation and temperature control method, including the following steps:

[0074] Step S10: Obtain the oxygen concentration inside the vehicle after the air conditioning unit 2 is started.

[0075] It should be noted that the oxygen concentration inside the vehicle can be detected and obtained through the oxygen concentration sensor 3 located in the center armrest of the vehicle.

[0076] Step S20: Adjust the system operating mode and oxygen output mode according to the oxygen concentration inside the vehicle.

[0077] It should be noted that when the oxygen concentration inside the vehicle is higher than the set high concentration value, the solenoid valve 14 on the intake pipe 15 is closed to prevent outside air from entering the oxygen generating mechanism 1, causing the oxygen generating mechanism 1 to stop supplying oxygen. At this time, the system operation mode is single air conditioning mode to avoid the danger caused by excessively high oxygen concentration inside the vehicle. When the oxygen concentration inside the vehicle is lower than the set low concentration value, the solenoid valve 14 is opened, and the system operation mode is mixed mode. At this time, the electrically controlled valve on the oxygen outlet pipe 52 is closed, and the oxygen from the oxygen supply pipe 13 is output to the mixing chamber 41 and mixed before being output from the air outlet 22. The oxygen output mode is diffusion mode. When the oxygen concentration inside the vehicle remains lower than the set low concentration value for a set time, the electrically controlled valve on the oxygen outlet pipe 52 is opened, and the oxygen output mode is nasal oxygen supply mode. The user can insert the oxygen inhalation nozzle 61 of the nasal oxygen supply module 6 and connect it to the oxygen supply pipe 13 so that oxygen is directly output from the nasal oxygen supply module 6.

[0078] It should be noted that the high concentration value and the low concentration value can be preset. In this embodiment, the high concentration value is set to 25% and the low concentration value is set to 19.5%.

[0079] It should be noted that users can manually switch between diffusion mode and nasal oxygen supply mode by clicking the button on the vehicle's infotainment system to meet the need for high-concentration oxygen supply in a short period of time.

[0080] Step S30: When the system operating mode is mixed mode and the oxygen output mode is diffusion mode, determine the opening adjustment strategy of the first flow valve 17 and the second flow valve 24 based on the required temperature, required air velocity, oxygen supply pipeline temperature, air outlet pipeline temperature, current air outlet temperature and current air outlet air velocity.

[0081] It should be noted that the first flow valve 17 is located on the oxygen supply pipe 13, and the second flow valve 24 is located on the air outlet pipe 21. The oxygen supply cold air output from the oxygen supply pipe 13 and the air conditioning hot air output from the air outlet pipe 21 are mixed in the mixing chamber 41 and then output to the vehicle from the air outlet 22. The temperature and wind speed of the air outlet 22 can be adjusted by adjusting the opening of the first flow valve 17 and the second flow valve 24.

[0082] Step S40: Control the opening of the first flow valve 17 and the second flow valve 24 according to the opening adjustment strategy.

[0083] In this embodiment, the oxygen generation and temperature control method includes the following steps: after the air conditioning unit 2 is started, the oxygen concentration inside the vehicle is obtained; the system operating mode and oxygen output mode are adjusted according to the oxygen concentration inside the vehicle; when the system operating mode is a mixed mode and the oxygen output mode is a diffusion mode, the opening adjustment strategy of the first flow valve 17 and the second flow valve 24 is determined according to the required temperature, required wind speed, oxygen supply pipe temperature, air outlet pipe temperature, current air outlet temperature and current air outlet wind speed; the opening of the first flow valve 17 and the second flow valve 24 is controlled according to the opening adjustment strategy.

[0084] refer to Figure 5 , Figure 5 This is a schematic flowchart of the second embodiment of the oxygen generation and temperature regulation method of the present invention.

[0085] Based on the first embodiment described above, the oxygen generation and temperature control method of this embodiment includes the following in step S30:

[0086] Step S31: Obtain the required temperature and the required wind speed.

[0087] It should be noted that the required temperature and required wind speed are not the temperature and wind speed manually set by the user on the vehicle's infotainment system, but rather the temperature and wind speed determined by the system based on the temperature and wind speed settings set by the user on the vehicle's infotainment system. Generally, the required temperature is higher than the temperature set by the vehicle's infotainment system, and the required wind speed is within the wind speed range corresponding to the specified wind speed setting.

[0088] Step S32: Obtain the temperature of the oxygen supply pipeline, the temperature of the air outlet pipeline, and the current air outlet temperature.

[0089] It should be noted that the temperature of the oxygen supply pipe, the temperature of the air outlet pipe, and the current air outlet temperature can all be obtained by the first thermometer 18, the second thermometer 25, and the third thermometer 26 installed on them.

[0090] Step S33: Determine the opening ratio between the first flow valve 17 and the second flow valve 24 based on the required temperature, the oxygen supply pipe temperature, the air outlet pipe temperature, and the current air outlet temperature.

[0091] Step S34: Obtain the current air outlet wind speed.

[0092] It should be noted that the air velocity at the current air outlet is difficult to obtain directly and needs to be obtained indirectly by detecting other parameters.

[0093] Step S35: Determine the opening values ​​of the first flow valve and the second flow valve based on the required wind speed, the current air outlet wind speed, and the opening ratio.

[0094] In this embodiment, the required temperature and the required air velocity are first obtained, as are the oxygen supply pipe temperature, the air outlet pipe temperature, and the current air outlet temperature. Then, the opening ratio between the first flow valve 17 and the second flow valve 24 is determined based on the required temperature, the oxygen supply pipe temperature, the air outlet pipe temperature, and the current air outlet temperature. Next, the current air outlet air velocity is obtained, and the opening values ​​of the first flow valve 17 and the second flow valve 24 are determined based on the required air velocity, the current air outlet air velocity, and the opening ratio.

[0095] refer to Figure 6 , Figure 6 This is a schematic flowchart of the third embodiment of the oxygen generation and temperature regulation method of the present invention.

[0096] Based on the second embodiment described above, the oxygen generation and temperature control method of this embodiment includes the following in step S33:

[0097] Step S331: Calculate the initial opening ratio based on the required temperature, the oxygen supply pipe temperature, and the air outlet pipe temperature.

[0098] It should be noted that, with the initial opening ratio set as K, the required temperature set as T1, the oxygen supply pipe temperature set as T2, and the air outlet pipe temperature set as T3, the calculation formula for the initial opening ratio is: Substituting the above parameters into the calculation formula, the opening ratio of the first flow valve 17 and the second flow valve 24 can be calculated.

[0099] Step S332: Control the opening degree of the first flow valve 17 and the second flow valve 24 according to the initial opening degree ratio, and obtain the current air outlet temperature.

[0100] Step S333: Calculate the temperature difference based on the current air outlet temperature and the required temperature.

[0101] It should be noted that, in reality, the flow rate of the gas output from the oxygen supply pipe 13 and the air outlet pipe 21 is not linearly related to the opening degree of the first flow valve 17 and the second flow valve 24, and it is impossible to guarantee that the oxygen supply cold air and the air conditioning hot air in the mixing chamber 41 are mixed evenly. Therefore, there is a deviation between the current air outlet temperature and the required temperature. The temperature difference is the absolute value of the difference between the current air outlet temperature and the required temperature.

[0102] Step S334: If the temperature difference is less than the first preset threshold, then the initial opening ratio is used as the opening ratio between the first flow valve 17 and the second flow valve 24.

[0103] It should be noted that if the temperature difference is less than the first preset threshold, it indicates that the deviation between the current air outlet temperature and the required temperature is within an acceptable range. In this case, the initial opening ratio can be used as the opening ratio between the first flow valve 17 and the second flow valve 24.

[0104] Step S335: If the temperature difference is greater than the first preset threshold and the current air outlet temperature is greater than the required temperature, then increase the opening ratio, control the opening of the first flow valve 17 and the second flow valve 24 according to the new opening ratio, obtain the current air outlet temperature, until the temperature difference is less than the first preset threshold, and use the current opening ratio as the opening ratio between the first flow valve and the second flow valve.

[0105] It should be noted that the purpose of obtaining the initial opening ratio is to obtain a reference value, so that the opening ratio can be adjusted based on the reference value, thereby improving the adjustment efficiency.

[0106] It should be noted that the opening ratio can be increased by increasing the opening value of the first flow valve 17 and / or decreasing the opening value of the second flow valve 24.

[0107] Step S336: If the temperature difference is greater than the first preset threshold and the current air outlet temperature is less than the required temperature, then reduce the opening ratio, control the opening of the first flow valve 17 and the second flow valve 24 according to the new opening ratio, obtain the current air outlet temperature, until the temperature difference is less than the first preset threshold, and use the current opening ratio as the opening ratio between the first flow valve 17 and the second flow valve 24.

[0108] It should be noted that the opening ratio can be reduced by decreasing the opening value of the first flow valve 17 and / or increasing the opening value of the second flow valve 24.

[0109] It should be noted that the opening ratio of the first flow valve 17 and the second flow valve 24 can be adjusted in real time through PID control so that the current air outlet temperature is always close to the required temperature.

[0110] In this embodiment, an initial opening ratio is first calculated based on the required temperature, the oxygen supply pipe temperature, and the air outlet pipe temperature. The opening of the first flow valve 17 and the second flow valve 24 is then controlled according to this initial opening ratio, and the current air outlet temperature is obtained. Next, the temperature difference is calculated based on the current air outlet temperature and the required temperature. If the temperature difference is less than a first preset threshold, the initial opening ratio is used as the opening ratio between the first flow valve 17 and the second flow valve 24. If the temperature difference is greater than the first preset threshold and the current air outlet temperature is greater than the required temperature, the opening ratio is increased, and the air outlet temperature is controlled according to the new opening ratio. The opening degree of the first flow valve 17 and the second flow valve 24 is controlled, the current outlet temperature is obtained, and the temperature difference is kept below a first preset threshold. The current opening degree ratio is used as the opening degree ratio between the first flow valve 17 and the second flow valve 24. If the temperature difference is greater than the first preset threshold and the current outlet temperature is less than the required temperature, the opening degree ratio is reduced. The opening degree of the first flow valve 17 and the second flow valve 24 is controlled according to the new opening degree ratio, the current outlet temperature is obtained, and the temperature difference is kept below the first preset threshold. The current opening degree ratio is used as the opening degree ratio between the first flow valve 17 and the second flow valve 24.

[0111] refer to Figure 7 , Figure 7 This is a schematic flowchart of the fourth embodiment of the oxygen generation and temperature regulation method of the present invention.

[0112] Based on the second embodiment described above, the oxygen generation and temperature control method of this embodiment includes the following in step S35:

[0113] Step S351: Obtain the air outlet area.

[0114] It should be noted that the area of ​​the air outlet is the effective cross-sectional area of ​​the air outlet 22, which can be obtained through prior measurement.

[0115] Step S352: Calculate the total required air volume based on the required wind speed and the air outlet area.

[0116] It should be noted that the total required air volume is the product of the required air velocity and the area of ​​the air outlet.

[0117] Step S353: Obtain the maximum flow rate of the oxygen supply pipeline and the maximum flow rate of the air outlet pipeline.

[0118] It should be noted that the maximum flow rate of the oxygen supply pipe and the maximum flow rate of the air outlet pipe can be obtained in advance through experiments.

[0119] Step S354: Calculate the initial opening values ​​of the first flow valve 17 and the second flow valve 24 based on the total required air volume, the maximum flow rate of the oxygen supply pipe, the maximum flow rate of the air outlet pipe, and the opening ratio.

[0120] It should be noted that the total required air volume is the same as the total volumetric flow rate. Therefore, the total required air volume is set as Q1, the maximum flow rate of the oxygen supply pipeline is set as Q2, the maximum flow rate of the air outlet pipeline is set as Q3, the opening ratio is set as K, the initial opening value of the first flow valve 17 is V1, the initial opening value of the second flow valve 24 is V2, and the initial opening value of the first flow valve 17 is calculated using the following formula: The initial opening value of the second flow valve 24 is calculated using the following formula: Substituting the above parameters into the formula, the initial opening values ​​of the first flow valve 17 and the second flow valve 24 can be calculated.

[0121] It should be noted that the required flow rate of the oxygen supply pipeline is set as Q4, and the required flow rate of the air outlet pipeline is set as Q5. The formula for calculating the required flow rate of the oxygen supply pipeline is as follows: The formula for calculating the required flow rate of the air outlet duct is as follows: The required flow rates of the oxygen supply pipeline and the air outlet pipeline can be calculated using this method. Substituting these required flow rates into the flow-opening inverse function, the initial opening values ​​of the first flow valve 17 and the second flow valve 24 can also be obtained. The flow-opening inverse function can be provided by the valve manufacturer or obtained through experimental calibration of the system. This method can replace steps S353 to S354.

[0122] Step S355: Control the opening of the first flow valve 17 and the second flow valve 24 according to the two initial opening values, and obtain the current air outlet wind speed.

[0123] It should be noted that the method for obtaining the current air outlet wind speed is the same as that in step S34.

[0124] Step S356: Calculate the wind speed difference based on the current air outlet wind speed and the required wind speed.

[0125] It should be noted that, in reality, the flow rate of the gas output from the oxygen supply pipe 13 and the air outlet pipe 21 is not linearly related to the opening degree of the first flow valve 17 and the second flow valve 24. Therefore, there is a deviation between the current air outlet wind speed and the required wind speed. The wind speed difference is the absolute value of the difference between the current air outlet wind speed and the required wind speed.

[0126] Step S357: If the wind speed difference is less than the second preset threshold, then the two initial opening values ​​are used as the opening values ​​of the first flow valve 17 and the second flow valve 24.

[0127] It should be noted that if the wind speed difference is less than the second preset threshold, it indicates that the deviation between the current air outlet wind speed and the required wind speed is within an acceptable range. In this case, the two initial opening values ​​can be used as the opening values ​​of the first flow valve 17 and the second flow valve 24.

[0128] Step S358: If the wind speed difference is greater than the second preset threshold and the current air outlet wind speed is greater than the required wind speed, then the opening values ​​are reduced simultaneously by the opening ratio. The opening of the first flow valve 17 and the second flow valve 24 are controlled according to the two new opening values ​​to obtain the current air outlet wind speed until the wind speed difference is less than the second preset threshold. The two current opening values ​​are used as the opening values ​​of the first flow valve 17 and the second flow valve 24.

[0129] It should be noted that the two new opening values ​​after adjustment must ensure that the opening ratio remains unchanged. If the opening ratio changes, the current air outlet temperature will change.

[0130] Step S359: If the wind speed difference is greater than the second preset threshold and the current air outlet wind speed is less than the required wind speed, then the opening value is increased simultaneously by the opening ratio. The opening of the first flow valve 17 and the second flow valve 24 is controlled according to the two new opening values ​​to obtain the current air outlet wind speed until the wind speed difference is less than the second preset threshold. The two current opening values ​​are then used as the opening values ​​of the first flow valve 17 and the second flow valve 24.

[0131] It should be noted that the opening values ​​of the first flow valve 17 and the second flow valve 24 can be synchronously adjusted in real time according to the opening ratio through PID control so that the current air outlet wind speed is always close to the required wind speed.

[0132] In this embodiment, the outlet area is first obtained, and the total required air volume is calculated based on the required air velocity and the outlet area. Then, the maximum flow rate of the oxygen supply pipeline and the maximum flow rate of the outlet pipeline are obtained. The initial opening values ​​of the first flow valve 17 and the second flow valve 24 are calculated based on the total required air volume, the maximum flow rate of the oxygen supply pipeline, the maximum flow rate of the outlet pipeline, and the opening ratio. The openings of the first flow valve 17 and the second flow valve 24 are controlled based on the two initial opening values. The current outlet air velocity is obtained, and then the air velocity difference is calculated based on the current outlet air velocity and the required air velocity. If the air velocity difference is less than a second preset threshold, the two initial opening values ​​are used as the opening values ​​of the first flow valve and the second flow valve. If the air velocity difference is greater than the second preset threshold and the current air velocity is less than the required air velocity, the openings of the first flow valve and the second flow valve are controlled based on the two initial opening values. If the air velocity at the front outlet is greater than the required air velocity, the opening value is simultaneously reduced by two values ​​according to the opening ratio. The opening of the first flow valve 17 and the second flow valve 24 is controlled according to the two new opening values ​​to obtain the current air velocity at the outlet. This process continues until the air velocity difference is less than the second preset threshold. The two current opening values ​​are then used as the opening values ​​of the first flow valve 17 and the second flow valve 24. If the air velocity difference is greater than the second preset threshold and the current air velocity at the outlet is less than the required air velocity, the opening value is simultaneously increased by two values ​​according to the opening ratio. The opening of the first flow valve 17 and the second flow valve 24 is controlled according to the two new opening values ​​to obtain the current air velocity at the outlet. This process continues until the air velocity difference is less than the second preset threshold. The two current opening values ​​are then used as the opening values ​​of the first flow valve 17 and the second flow valve 24.

[0133] refer to Figure 8 , Figure 8 This is a schematic flowchart of the fifth embodiment of the oxygen generation and temperature regulation method of the present invention.

[0134] Based on the second embodiment described above, the oxygen generation and temperature control method of this embodiment includes the following in step S34:

[0135] Step S341: Obtain the current mixing chamber pressure.

[0136] It should be noted that the current air pressure in the mixing chamber can be detected and obtained through the pressure gauge 42 inside the mixing chamber 41.

[0137] Step S342: Obtain the ambient pressure and air density at the air outlet.

[0138] It should be noted that the ambient pressure at the air outlet is atmospheric pressure, and the air density can be determined by referring to a table based on the current altitude.

[0139] Step S343: Calculate the current air outlet wind speed based on the current mixing chamber air pressure, the air outlet ambient pressure, and the air density.

[0140] It should be noted that the current mixing chamber pressure is set as P1, the outlet ambient pressure is set as P2, the air density is ρ, the current outlet wind speed is v, and the formula for calculating the current outlet wind speed is: Substituting the above parameters into the formula, the current air outlet wind speed can be calculated.

[0141] In this embodiment, the current mixing chamber pressure is first obtained, then the outlet ambient pressure and air density are obtained, and finally the current outlet wind speed is calculated based on the current mixing chamber pressure, the outlet ambient pressure and the air density.

[0142] It should be understood that although the steps in the flowcharts of this application's embodiments are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some of the steps in the figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least a portion of the sub-steps or stages of other steps.

[0143] It should be noted that the workflow described above is merely illustrative and does not limit the scope of protection of this invention. In practical applications, those skilled in the art can select some or all of the workflow to achieve the purpose of this embodiment according to actual needs, and no restrictions are imposed here.

[0144] Furthermore, it should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0145] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0146] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vehicle-mounted oxygen generation and temperature control system, characterized in that, The system includes an oxygen generating mechanism and an air conditioning mechanism. The oxygen generating mechanism includes a compression assembly, an oxygen generating component, and an oxygen supply pipe that can communicate with the vehicle cabin. The air conditioning mechanism includes a drive motor. The compression assembly includes a cylinder and a piston. The piston is movably disposed in the cylinder. The piston is connected to the output shaft of the drive motor through a transmission structure and is driven by the drive motor to reciprocate within the cylinder. The cylinder has an air inlet and an air outlet. The air outlet is connected to the oxygen supply pipe through the oxygen generating assembly.

2. The vehicle-mounted oxygen generation and temperature control system as described in claim 1, characterized in that, It also includes an oxygen concentration sensor for detecting the oxygen concentration inside the vehicle. There are two compression components. The air inlets of the two compression components are connected by an air inlet pipe, and the air outlets of the two compression components are connected by an air outlet pipe. The air outlet pipe is connected to the oxygen generating component. The air inlet pipe is equipped with a solenoid valve, which can control the switch according to the oxygen concentration inside the vehicle.

3. The vehicle-mounted oxygen generation and temperature control system as described in claim 1, characterized in that, The transmission structure includes an eccentric component and a connecting rod. One end of the eccentric component is connected to the output shaft of the drive motor, and the other end is rotatably connected to the connecting rod. The end of the connecting rod away from the eccentric component is rotatably connected to the piston.

4. The vehicle-mounted oxygen generation and temperature control system as described in claim 1, characterized in that, The air conditioning system also includes an air outlet duct and an air outlet, and both the oxygen supply duct and the air outlet duct are connected to the air outlet.

5. The vehicle-mounted oxygen generation and temperature control system as described in claim 4, characterized in that, It also includes a mixing mechanism, which has a mixing chamber for accommodating and mixing oxygen-supplying cold air and air conditioning hot air. The mixing chamber is equipped with a pressure gauge for detecting the air pressure inside the mixing chamber. The oxygen supply pipe and the air outlet pipe are both connected to the air outlet through the mixing chamber. The oxygen supply pipe is equipped with a first flow valve and a first thermometer. The air outlet pipe is equipped with a second flow valve and a second thermometer. The air outlet is equipped with a third thermometer. The opening degree of the first flow valve and the second flow valve can be adjusted according to the temperature detected by the first thermometer, the second thermometer and the third thermometer and the air pressure detected by the pressure gauge.

6. A method for oxygen generation and temperature regulation, characterized in that, Includes the following steps: The oxygen concentration inside the vehicle is measured after the air conditioning system is activated. The system operating mode and oxygen output mode are adjusted according to the oxygen concentration inside the vehicle. When the system is in mixed mode and the oxygen output mode is in diffusion mode, the opening adjustment strategy of the first flow valve and the second flow valve is determined based on the required temperature, required air velocity, oxygen supply pipeline temperature, air outlet pipeline temperature, current air outlet temperature and current air outlet air velocity. The opening degree of the first flow valve and the second flow valve is controlled according to the opening degree adjustment strategy.

7. The oxygen generation and temperature control method as described in claim 6, characterized in that, The strategy for determining the opening adjustment of the first and second flow valves based on the required temperature, required air velocity, oxygen supply pipe temperature, outlet air pipe temperature, current outlet air temperature, and current outlet air velocity includes: Obtain the required temperature and the required wind speed; Obtain the temperature of the oxygen supply pipeline, the temperature of the air outlet pipeline, and the current air outlet temperature; The opening ratio between the first flow valve and the second flow valve is determined based on the required temperature, the oxygen supply pipe temperature, the air outlet pipe temperature, and the current air outlet temperature. Obtain the current air outlet wind speed; The opening values ​​of the first flow valve and the second flow valve are determined based on the required wind speed, the current air outlet wind speed, and the opening ratio.

8. The oxygen generation and temperature control method as described in claim 7, characterized in that, The step of determining the opening ratio between the first flow valve and the second flow valve based on the required temperature, the oxygen supply pipeline temperature, the air outlet pipeline temperature, and the current air outlet temperature includes: The initial opening ratio is calculated based on the required temperature, the oxygen supply pipe temperature, and the air outlet pipe temperature. The opening degrees of the first flow valve and the second flow valve are controlled according to the initial opening degree ratio, and the current air outlet temperature is obtained. The temperature difference is calculated based on the current air outlet temperature and the required temperature. If the temperature difference is less than the first preset threshold, then the initial opening ratio is used as the opening ratio between the first flow valve and the second flow valve. If the temperature difference is greater than the first preset threshold and the current air outlet temperature is greater than the required temperature, the opening ratio is increased, and the opening of the first flow valve and the second flow valve is controlled according to the new opening ratio to obtain the current air outlet temperature until the temperature difference is less than the first preset threshold, and the current opening ratio is used as the opening ratio between the first flow valve and the second flow valve. If the temperature difference is greater than the first preset threshold and the current air outlet temperature is less than the required temperature, the opening ratio is reduced, and the opening of the first flow valve and the second flow valve is controlled according to the new opening ratio to obtain the current air outlet temperature until the temperature difference is less than the first preset threshold. The current opening ratio is then used as the opening ratio between the first flow valve and the second flow valve.

9. The oxygen generation and temperature control method as described in claim 7, characterized in that, The step of determining the opening values ​​of the first flow valve and the second flow valve based on the required wind speed, the current outlet wind speed, and the opening ratio includes: Obtain the air outlet area; The total required air volume is calculated based on the required wind speed and the area of ​​the air outlet. Obtain the maximum flow rate of the oxygen supply pipeline and the maximum flow rate of the air outlet pipeline; The initial opening values ​​of the first flow valve and the second flow valve are calculated based on the total required air volume, the maximum flow rate of the oxygen supply pipeline, the maximum flow rate of the air outlet pipeline, and the opening ratio. The opening degrees of the first flow valve and the second flow valve are controlled according to the two initial opening values, and the current air outlet wind speed is obtained. The wind speed difference is calculated based on the current air outlet wind speed and the required wind speed. If the wind speed difference is less than the second preset threshold, then the two initial opening values ​​are used as the opening values ​​of the first flow valve and the second flow valve. If the wind speed difference is greater than the second preset threshold and the current air outlet wind speed is greater than the required wind speed, then the opening ratio is reduced by two opening values ​​simultaneously. The opening of the first flow valve and the second flow valve is controlled according to the two new opening values ​​to obtain the current air outlet wind speed until the wind speed difference is less than the second preset threshold. The two current opening values ​​are then used as the opening values ​​of the first flow valve and the second flow valve. If the wind speed difference is greater than the second preset threshold and the current air outlet wind speed is less than the required wind speed, then the opening value is increased simultaneously by the opening ratio by two values. The opening of the first flow valve and the second flow valve is controlled according to the two new opening values ​​to obtain the current air outlet wind speed until the wind speed difference is less than the second preset threshold. The two current opening values ​​are then used as the opening values ​​of the first flow valve and the second flow valve.

10. The oxygen generation and temperature control method as described in claim 7, characterized in that, The process of obtaining the current air outlet wind speed includes: Get the current mixing chamber pressure; Obtain the ambient pressure and air density at the air outlet; The current air outlet wind speed is calculated based on the current mixing chamber air pressure, the air outlet ambient pressure, and the air density.

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