Modularized vehicle-mounted dispersion oxygen generator

Abstract

The utility model discloses a modularized vehicle-mounted dispersion oxygen generator, and particularly relates to the technical field of oxygen generators, the modularized vehicle-mounted dispersion oxygen generator comprises an oxygen generator body, the oxygen generator body comprises a mounting base fixedly mounted on a vehicle body and a casing fixedly connected with the edge of the mounting base; a gas compression module, a gas inlet pretreatment module, a temperature control module, a control module, a gas separation module, an oxygen production performance detection module and a silencing module are arranged in the machine shell. The two compressors are connected in parallel for use, the air inflow is increased, the requirement of the oxygen generation system for the air flow is met, meanwhile, the rotating speed of the two compressors can be adjusted in a self-adaptive mode according to the environment temperature and the air pressure, the oxygen generation performance can be guaranteed under different working conditions, and high environment adaptability is achieved; and the molecular sieve tower adopts an integrated design, and an electromagnetic valve, a pressure reducing valve and a temperature control heating sheet are integrated on the tower, so that the machine space is favorably released, and the weight and the volume of the gas separation module are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen concentrators, and more specifically, to a modular vehicle-mounted diffusion oxygen concentrator. Background Art

[0002] It is known that an oxygen-rich environment can improve human immunity and body function balance, prevent aging and fatigue, relieve altitude sickness, and has a good preventive effect on the cardiopulmonary system, respiratory system and nervous system; therefore, vehicle-mounted oxygen concentrators are often used to supply oxygen in vehicles under high-altitude hypoxic environments, improve the breathing environment of drivers and passengers, relieve altitude sickness of passengers and drivers, and effectively reduce the accident rate of vehicles traveling on the plateau; the principle of the oxygen concentrator is to use the molecular sieves of different components in the air under a certain pressure to separate and adsorb the different adsorption amounts of nitrogen and oxygen in the air. It can be seen that compared with traditional cylinders and chemical oxygen supply, the oxygen concentrator is safer, more reliable and less costly to produce oxygen.

[0003] However, in actual use, the actual working efficiency of the oxygen generator is affected by air pressure and temperature. For the oxygen production system: air pressure determines the gas volume of the system and the adsorption pressure of the molecular sieve. In the plateau environment, the air pressure is low, which will lead to the mass flow rate of the oxygen production system fan and the exhaust volume of the compressor. Reduced, which in turn leads to insufficient system air intake, affecting the oxygen production flow and concentration of the oxygen production system; and the ambient temperature in the plateau area is relatively low, resulting in a lower temperature of the gas entering the adsorption tower, and the optimal adsorption temperature of the molecular sieve is 15℃~25℃. When the temperature is too low, the ability of the molecular sieve to adsorb nitrogen and oxygen is enhanced, and the proportion of the molecular sieve surface occupied will greatly increase. In this way, the proportion of effective molecular sieves is reduced during repeated adsorption and analysis cycles, which is not conducive to the separation of nitrogen and oxygen.

[0004] At present, the oxygen concentrators on the market have low oxygen production efficiency in plateau environments due to the influence of low temperature and low air pressure. Under the rated oxygen flow rate, the oxygen concentration usually does not reach 90% (V / V). In addition, conventional diffusion oxygen concentrators are large in size, have poor resistance to vehicle vibration and shock, and have low reliability, which prevents them from being widely used in vehicles. Therefore, a modular vehicle-mounted diffusion oxygen concentrator is proposed as a further improvement. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, an embodiment of the present utility model provides a modular vehicle-mounted diffusion oxygen concentrator to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solutions: a modular vehicle-mounted diffusion oxygen concentrator, comprising an oxygen concentrator body, wherein the oxygen concentrator body comprises: a mounting base fixedly mounted on a vehicle body and a housing fixedly connected to an edge of the mounting base;

[0007] The casing is internally provided with a gas compression module, an air intake pre-processing module, a temperature control module, a control module, a gas separation module, an oxygen production performance detection module and a silencer module.

[0008] Furthermore, the gas compression module comprises a compressor, a compressor shock absorber is fixedly mounted on the bottom of the compressor, and the compressor shock absorber is fixedly mounted on a mounting base.

[0009] Furthermore, the air intake pretreatment module includes a high-efficiency filter, which is fixedly mounted on an inner wall of one side of the casing, and the air intake end of the compressor is connected to the high-efficiency filter through a silicone tube, and high-efficiency filter cotton is arranged inside the high-efficiency filter.

[0010] Furthermore, the temperature control module includes: a cooling fan and a radiator, the cooling fan and the radiator are respectively fixedly mounted on the inner walls on both sides of the casing, and the cooling fan and the radiator are respectively close to both ends of the compressor, and the radiator is located below the high-efficiency filter.

[0011] Furthermore, the control module includes a controller, and the controller is fixedly mounted on a casing located above the compressor.

[0012] Furthermore, the gas separation module includes: an integrated molecular sieve tower and a pressure reducing valve, wherein a solenoid valve and a throttling pipe are fixedly installed at both ends of the integrated molecular sieve tower, one side of the integrated molecular sieve tower is fixedly installed on the inner wall of the back of the casing, and a pressure reducing valve is fixedly installed on the other side of the integrated molecular sieve tower, and the integrated molecular sieve tower is located above the high-efficiency filter.

[0013] Furthermore, the oxygen production performance detection module includes: a low-temperature resistant electronic flow meter and an ultrasonic oxygen concentration sensor, the electronic flow meter is fixedly mounted on the casing near the pressure reducing valve, and the ultrasonic oxygen concentration sensor is fixedly mounted on the side wall of the casing above the radiator.

[0014] Furthermore, the silencer module includes a nitrogen exhaust silencer, which is fixedly mounted on a casing at the same height as the integrated molecular sieve tower. The nitrogen exhaust silencer is connected to the solenoid valve through pipes and joints. A nitrogen exhaust interface is provided on the outer wall of the casing near the ultrasonic oxygen concentration sensor.

[0015] Furthermore, the mounting base is fixed to the vehicle body via a vibration-damping rubber pad, and the housing is fixedly connected to the mounting base via mounting bolts.

[0016] Furthermore, a display screen and a switch button are fixedly mounted on the outer wall of the casing on which the cooling fan is installed, and the switch button is arranged below the display screen; an oxygen outlet at the same height as the display screen is provided on the outer wall of the casing on which the display screen is installed; handles are fixedly mounted on the outer walls on both sides of the casing; ventilation holes located below the handles are provided on both sides of the casing; a CAN communication interface, a power aviation plug interface and a grounding pole are provided on the outer wall of the casing on which the display screen is installed, and the power aviation plug interface is located below the CAN communication interface, and the grounding pole is located below the power aviation plug interface.

[0017] Technical effects and advantages of the utility model:

[0018] Compared with the prior art, two compressors are set up in parallel to increase the air intake volume and meet the air volume requirements of the oxygen production system. At the same time, the dual compressors can adaptively adjust their rotation speeds according to the ambient temperature and air pressure, and can ensure the oxygen production performance under different working conditions, with strong environmental adaptability. The molecular sieve tower adopts an integrated design, integrating the solenoid valve, pressure reducing valve, and temperature control heating plate on the tower, which is conducive to freeing up machine space and reducing the weight and volume of the gas separation module. At the same time, the backflush, air intake, and oxygen storage circuits are integrated, reducing the use of pipe joints, reducing the loss of air volume and the risk of leakage in the pipeline connection. In view of the vehicle-mounted use environment of the oxygen generator, an effective shock-absorbing design is carried out on it, which can effectively reduce the risk of vehicle leakage during driving. The vibration and impact during driving affects the whole machine. The heavier compressor is connected to the whole machine through the compressor shock absorber, which has the effect of reducing shock and noise at the same time. Therefore, the utility model has strong environmental adaptability and can ensure that the oxygen production performance is not attenuated in the harsh environment of the plateau. The whole machine adopts a modular and integrated design, which effectively reduces the volume and weight of the whole machine while ensuring a large oxygen production flow rate. It adopts an efficient shock-absorbing design to meet the requirements of vehicle-mounted use under various working conditions. The invented device can be applied to various vehicles, and can provide passengers with large-flow and high-concentration oxygen with high efficiency and low power consumption, solve the oxygen supply problem of vehicles in plateau environments, improve the breathing microenvironment in the vehicle, and has great practical use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the internal structure of the utility model.

[0020] Figure 2 This is a schematic diagram of the structure of the gas separation module of the utility model.

[0021] Figure 3 It is an exploded schematic diagram of the overall structure of the utility model.

[0022] Figure 4 This is a working principle diagram of the utility model.

[0023] The accompanying drawings are marked as follows:

[0024] 1. Install the base; 11. Vibration-damping rubber pad; 12. Install the bolts;

[0025] 2. Casing;

[0026] 21. Display screen; 22. Switch button; 23. Oxygen outlet; 24. Handle; 25. Ventilation hole;

[0027] 26. CAN communication interface; 27. Power supply aviation plug interface; 28. Grounding wire column;

[0028] 3. Gas compression module; 31. Compressor; 32. Compressor shock absorber;

[0029] 4. Intake air pre-treatment module; 41. High efficiency filter;

[0030] 5. Temperature control module; 51. Cooling fan; 52. Radiator;

[0031] 6. Control module; 61. Controller;

[0032] 7. Gas separation module;

[0033] 71. Integrated molecular sieve tower; 72. Pressure reducing valve; 73. Solenoid valve; 74. Throttling pipeline;

[0034] 8. Oxygen production performance detection module; 81. Electronic flow meter; 82. Ultrasonic oxygen concentration sensor;

[0035] 9. Silence module; 91. Nitrogen exhaust silencer; 92. Nitrogen exhaust interface. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0037] As attached Figure 1-4 A modular vehicle-mounted diffusion oxygen concentrator is shown, comprising an oxygen concentrator body, the oxygen concentrator body comprising: a mounting base 1 fixedly mounted on a vehicle body and a housing 2 fixedly connected to an edge of the mounting base 1;

[0038] The casing 2 is provided with a gas compression module 3 , an air intake pre-processing module 4 , a temperature control module 5 , a control module 6 , a gas separation module 7 , an oxygen production performance detection module 8 and a silencer module 9 .

[0039] In a preferred embodiment, as shown in the attached Figure 1-4As shown, the gas compression module 3 includes a compressor 31 , a compressor shock absorber 32 is fixedly mounted on the bottom of the compressor 31 , and the compressor shock absorber 32 is fixedly mounted on the mounting base 1 .

[0040] Two heat dissipation fans 51 are arranged inside the housing 2, and two compressors 31 are arranged on one side of the heat dissipation fans 51; and the compressor shock absorber 32 can slow down vibration and reduce the problem of resonance of the whole machine caused by the compressor 31 during operation, thereby reducing the noise generated by the diffuse oxygen concentrator during operation;

[0041] Among them, the use of two compressors 31 can provide the gas source required by the oxygen production system and meet the adsorption pressure requirements of the adsorption system, so that the gas compression module 3 has an adaptive adjustment function, which can adaptively adjust its speed according to the ambient temperature and air pressure, change the gas volume, and meet the requirements of the plateau low temperature and low pressure environment for gas volume;

[0042] In a preferred embodiment, as shown in the attached Figure 1-4 As shown, the air intake pretreatment module 4 includes a high-efficiency filter 41, which is fixedly mounted on an inner wall of one side of the casing 2. The air intake end of the compressor 31 is connected to the high-efficiency filter 41 through a silicone tube, and a high-efficiency filter cotton is arranged inside the high-efficiency filter 41.

[0043] Among them, the air intake pretreatment module 4 adopts a two-stage filtration design. The first stage filtration removes larger particles and dust in the air, and the second stage filtration is used to remove tiny impurities and water vapor in the air, which can ensure that the purity of the produced oxygen meets the requirements. The high-efficiency filter 41 also has a silencing effect, which can reduce the sound of product intake and reduce the noise of the compressor 31;

[0044] In a preferred embodiment, as shown in the attached Figure 1-4 As shown, the temperature control module 5 includes: a heat dissipation fan 51 and a radiator 52, the heat dissipation fan 51 and the radiator 52 are respectively fixedly mounted on the inner walls on both sides of the casing 2, and the heat dissipation fan 51 and the radiator 52 are respectively close to the two ends of the compressor 31, and the radiator 52 is located below the high-efficiency filter 41.

[0045] Among them, the radiator 52 is connected to the compressor 31 through a pipeline, which can reduce the temperature of the compressed gas; when the ambient temperature is high, the heat dissipation fan 51 starts to work to dissipate the heat of the gas output by the compressor 31, so that the heat dissipation fan 51 has a temperature control and speed regulation function, and can automatically adjust the speed according to the working environment temperature, while ensuring the heat dissipation capacity, it can also reduce the power consumption of the whole machine and the noise of the fan; when the ambient temperature is low, the heat dissipation fan 51 stops running, at this time, the heating plate on the integrated molecular sieve tower 71 starts to heat the molecular sieve tower, when the temperature on the integrated molecular sieve tower 71 reaches the set temperature point, the heating plate operates at a lower power to ensure that the molecular sieve is within the optimal adsorption temperature range.

[0046] In a preferred embodiment, as shown in the attached Figure 1-4 As shown, the control module 6 includes a controller 61 , and the controller 61 is fixedly mounted on the casing 2 located above the compressor 31 .

[0047] The control module 6 is the brain of the oxygen generator, which can control the system operation of the whole machine, perform logical control on the compressor 31, the cooling fan 51 and the solenoid valve 73, etc., and control the actions of each gas circuit component and circuit component, thereby providing guarantee for the reliability of the whole machine.

[0048] In a preferred embodiment, as shown in the attached Figure 1-4 As shown, the gas separation module 7 includes: an integrated molecular sieve tower 71 and a pressure reducing valve 72, and a solenoid valve 73 and a throttling pipe 74 are fixedly installed at both ends of the integrated molecular sieve tower 71, one side of the integrated molecular sieve tower 71 is fixedly installed on the inner wall of the back of the casing 2, and the other side of the integrated molecular sieve tower 71 is fixedly installed with a pressure reducing valve 72, and the integrated molecular sieve tower 71 is located above the high-efficiency filter 41;

[0049] Among them, the integrated molecular sieve tower 71 of the gas separation module 7 adopts an integrated design as a whole, integrating two molecular sieve towers, an oxygen storage tank, a one-way valve, a throttle valve, a pressure reducing valve 72, a solenoid valve 73, and a throttling pipeline 74, which can effectively reduce space and improve the separation efficiency of nitrogen and oxygen;

[0050] Among them, the upper and lower end covers of the integrated molecular sieve tower 71 are integrated with a solenoid valve, a back-blowing gas circuit, and a back-blowing throttle valve, which reduces the connection points of the joint gas circuit, thereby reducing the impact of gas circuit loss and pipeline connection leakage risk on performance;

[0051] Among them, the tower body surface of the integrated molecular sieve tower 71 is provided with a heating plate, and a temperature sensor is provided inside the tower. When the system detects a low temperature, the heating plate starts to work and heats the molecular sieve in the tower to solve the problem of low molecular sieve adsorption efficiency at low temperature;

[0052] In a preferred embodiment, as shown in the attached Figure 1-4 As shown, the oxygen production performance detection module 8 includes: a low-temperature resistant electronic flow meter 81 and an ultrasonic oxygen concentration sensor 82. The electronic flow meter 81 is fixedly mounted on the casing 2 near the pressure reducing valve 72, and the ultrasonic oxygen concentration sensor 82 is fixedly mounted on the side wall of the casing 2 above the radiator 52.

[0053] Among them, the oxygen production performance detection module 8 can work normally at a low temperature of -43°C, and adjust and detect the oxygen flow and concentration of the oxygen generator; among them, the electronic flow meter 81 can adaptively adjust the oxygen flow according to the actual use situation to meet the use under different working conditions; the ultrasonic oxygen concentration sensor 82 can detect the oxygen flow and oxygen concentration, and upload the parameters to the controller 61, and the controller 61 then uploads the relevant parameters to the display screen 21;

[0054] In a preferred embodiment, as shown in the attached Figure 1-4 As shown, the silencer module 9 includes a nitrogen exhaust silencer 91, which is fixedly mounted on the casing 2 at the same height as the integrated molecular sieve tower 71. The nitrogen exhaust silencer 91 is connected to the solenoid valve 73 through pipes and joints. A nitrogen exhaust interface 92 is provided on the outer wall of the casing 2 near the ultrasonic oxygen concentration sensor 82.

[0055] When the oxygen production system discharges nitrogen intermittently, due to the large volume and pressure of the discharged nitrogen, a large noise will be generated. The nitrogen discharge silencer 91 can effectively buffer the nitrogen gas flow velocity and greatly reduce the noise generated during the discharge of nitrogen.

[0056] In a preferred embodiment, as shown in the attached Figure 1-4 As shown, the mounting base 1 is fixed on the vehicle body via a vibration-damping rubber pad 11 , and the housing 2 is fixedly connected to the mounting base 1 via mounting bolts 12 .

[0057] The mounting base 1 is fixed to the vehicle body by four vibration-damping rubber pads 11, and the housing 2 is fixed to the mounting base 1 by mounting bolts 12, which can effectively reduce the impact of vibration shock on the oxygen concentrator body when the vehicle is driving;

[0058] In a preferred embodiment, as shown in the attached Figure 1-4 As shown, a display screen 21 and a switch button 22 are fixedly mounted on the outer wall of the casing 2 on which the cooling fan 51 is installed. The switch button 22 is arranged below the display screen 21. An oxygen outlet 23 at the same height as the display screen 21 is provided on the outer wall of the casing 2 on which the display screen 21 is installed. Handles 24 are fixedly mounted on the outer walls on both sides of the casing 2. Ventilation holes 25 located below the handles 24 are provided on both sides of the casing 2. A CAN communication interface 26, a power aviation plug interface 27 and a grounding wire pole 28 are provided on the outer wall of the casing 2 on which the display screen 21 is installed. The power aviation plug interface 27 is located below the CAN communication interface 26, and the grounding wire pole 28 is located below the power aviation plug interface 27.

[0059] Among them, the display screen 21 can display the parameters of the diffusion oxygen concentrator such as oxygen flow rate, oxygen concentration, cumulative working time, etc.; the diffusion oxygen concentrator can be turned on and off through the switch button 22.

[0060] Working principle of the utility model: when the oxygen generator body is powered on, the two compressors 31 of the gas compression module 3 will work at a certain speed according to the ambient temperature and air pressure conditions. At this time, the air enters the compressor 31 after being filtered and disinfected by the high-efficiency filter 41 of the air intake pretreatment module 4. After being compressed by the compressor 31, a gas with a certain pressure and temperature is output. When the gas temperature is high, the heat dissipation fan 51 of the temperature control module 5 works to dissipate heat and cool the input gas. When the ambient input gas temperature is low, the heat dissipation fan 51 stops rotating. At this time, the temperature control heating plate on the integrated molecular sieve tower 71 starts to work to heat the environment inside the integrated molecular sieve tower 71. Then the gas passes through the integrated molecular sieve tower 71. The solenoid valve 73 on 1 switches to enter the integrated molecular sieve tower 71, and the gas is subjected to pressure swing adsorption and desorption in the integrated molecular sieve tower 71, and the gas circuit switch is controlled by the solenoid valve 73 to output nitrogen and oxygen. The produced nitrogen is discharged to the silencer module 9 through the two nitrogen exhaust switches of the solenoid valve 73, and is directly discharged to the outdoor environment from the nitrogen exhaust interface 92 after silencing. The oxygen enters the oxygen storage tank through the one-way valve inside the integrated molecular sieve tower 71. The oxygen in the oxygen storage tank is regulated and controlled by the pressure reducing valve 72 and the electronic flowmeter 81, and passes through the ultrasonic oxygen concentration sensor 82 at a certain pressure and flow rate. After detection, it is output from the oxygen outlet 23, and the oxygen supply is realized through the oxygen supply pipeline and the oxygen terminal arranged in the vehicle.

[0061] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A modular vehicle-mounted diffusion oxygen concentrator, comprising an oxygen concentrator body, characterized in that: The oxygen generator body comprises: a mounting base (1) fixedly mounted on a vehicle body, and a housing (2) fixedly connected to an edge of the mounting base (1); The casing (2) is provided with a gas compression module (3), an air intake pre-processing module (4), a temperature control module (5), a control module (6), a gas separation module (7), an oxygen production performance detection module (8) and a silencer module (9); The gas compression module (3) comprises a compressor (31), a compressor shock absorber (32) being fixedly mounted on the bottom of the compressor (31), and the compressor shock absorber (32) being fixedly mounted on the mounting base (1).

2. A modular vehicle-mounted diffusion oxygen concentrator according to claim 1, characterized in that: The air intake pre-treatment module (4) comprises a high-efficiency filter (41), the high-efficiency filter (41) being fixedly mounted on an inner wall of one side of the casing (2), the air intake end of the compressor (31) being connected to the high-efficiency filter (41) via a silicone tube, and the interior of the high-efficiency filter (41) being provided with high-efficiency filter cotton.

3. A modular vehicle-mounted diffusion oxygen concentrator according to claim 2, characterized in that: The temperature control module (5) comprises: a heat dissipation fan (51) and a radiator (52); the heat dissipation fan (51) and the radiator (52) are respectively fixedly mounted on the inner walls of both sides of the casing (2); the heat dissipation fan (51) and the radiator (52) are respectively close to both ends of the compressor (31); and the radiator (52) is located below the high-efficiency filter (41).

4. A modular vehicle-mounted diffusion oxygen concentrator according to claim 3, characterized in that: The control module (6) comprises a controller (61), and the controller (61) is fixedly mounted on a casing (2) located above the compressor (31).

5. A modular vehicle-mounted diffusion oxygen concentrator according to claim 3, characterized in that: The gas separation module (7) comprises: an integrated molecular sieve tower (71) and a pressure reducing valve (72); a solenoid valve (73) and a throttling pipe (74) are fixedly mounted at both ends of the integrated molecular sieve tower (71); one side of the integrated molecular sieve tower (71) is fixedly mounted on the inner wall of the back of the casing (2); the other side of the integrated molecular sieve tower (71) is fixedly mounted with a pressure reducing valve (72); and the integrated molecular sieve tower (71) is located above the high-efficiency filter (41).

6. A modular vehicle-mounted diffusion oxygen concentrator according to claim 5, characterized in that: The oxygen production performance detection module (8) comprises: a low temperature resistant electronic flow meter (81) and an ultrasonic oxygen concentration sensor (82); the electronic flow meter (81) is fixedly mounted on the casing (2) near the pressure reducing valve (72); and the ultrasonic oxygen concentration sensor (82) is fixedly mounted on the side wall of the casing (2) above the radiator (52).

7. A modular vehicle-mounted diffusion oxygen concentrator according to claim 6, characterized in that: The muffler module (9) comprises a nitrogen exhaust muffler (91), the nitrogen exhaust muffler (91) being fixedly mounted on a casing (2) at the same height as the integrated molecular sieve tower (71), the nitrogen exhaust muffler (91) being connected to a solenoid valve (73) via a pipeline and a joint, and a nitrogen exhaust interface (92) being provided on an outer wall of the casing (2) close to the ultrasonic oxygen concentration sensor (82).

8. The modular vehicle-mounted diffusion oxygen concentrator according to claim 1, characterized in that: The mounting base (1) is fixed to the vehicle body via a vibration-damping rubber pad (11), and the housing (2) is fixedly connected to the mounting base (1) via mounting bolts (12).

9. The modular vehicle-mounted diffusion oxygen concentrator according to claim 3, characterized in that: A display screen (21) and a switch button (22) are fixedly mounted on the outer wall of the housing (2) on which the heat dissipation fan (51) is mounted, and the switch button (22) is arranged below the display screen (21). An oxygen outlet (23) is provided on the outer wall of the housing (2) on which the display screen (21) is mounted, and is located at the same height as the display screen (21). Handles (24) are fixedly mounted on the outer walls on both sides of the housing (2), and ventilation holes (25) are provided on both sides of the housing (2) and are located below the handles (24). A CAN communication interface (26), a power supply aviation plug interface (27) and a grounding wire pole (28) are provided on the outer wall of the housing (2) on which the display screen (21) is mounted, and the power supply aviation plug interface (27) is located below the CAN communication interface (26), and the grounding wire pole (28) is located below the power supply aviation plug interface (27).

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