Integrated assembly type vehicle-mounted oxygen generator

Abstract

The utility model discloses an integrated assembly type vehicle-mounted oxygen generator which comprises a compressor integrated valve body, a compression cavity is formed in the compressor integrated valve body, a booster pump assembly is installed in the compression cavity, and a driving motor matched with the booster pump assembly is installed on one side of the compressor integrated valve body. The molecular tower assembly and the ECU assembly are connected and installed on the other side of the compressor integrated valve body side by side, the molecular tower assembly comprises two molecular towers arranged side by side and molecular sieves arranged in the molecular towers, and the compression cavity communicates with the air inlet ends of the two molecular towers of the molecular tower assembly through air outlet air channels correspondingly. Meanwhile, the air outlet end of the molecular tower assembly is communicated with an oxygen output interface on the side wall of the compressor integrated valve body through an oxygen passage in the compressor integrated valve body, and at least one air inlet pipe is externally connected with the compressor integrated valve body. The vehicle oxygenerator can solve the problems that an existing vehicle oxygenerator is complex in structure and cannot be installed in a modularized mode.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive oxygen generators, specifically an integrated, assembled vehicle-mounted oxygen generator. Background Technology

[0002] In recent years, intelligent driving and comfort have become hot topics in the automotive industry. At the same time, vehicle demands are constantly increasing, and vehicle functions are integrating various features into the cabin to meet higher human needs. Cabin health management has also become a key consideration for automobiles. Among these, the demand for oxygen is increasing in daily driving, such as during high-altitude activities, outdoor oxygen use, and emergency medical care. Therefore, many vehicles are equipped with oxygen concentrators. Existing car oxygen concentrators are modified versions of conventional medical oxygen concentrators, which are often large in size and have many pipelines, making modular installation in vehicles impossible. Therefore, there is a need for a car-specific integrated oxygen concentrator. Utility Model Content

[0003] This invention provides an integrated, modular vehicle-mounted oxygen generator, which can solve the problem that existing vehicle-mounted oxygen generators have complex structures and cannot be modularly installed.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an integrated, modular vehicle-mounted oxygen generator, comprising a compressor integrated valve body, wherein a compression chamber is provided inside the compressor integrated valve body, and a booster pump assembly is installed inside the compression chamber. A drive motor matching the booster pump assembly is installed on one side of the compressor integrated valve body, and a molecular tower assembly and an ECU assembly are connected side-by-side on the other side of the compressor integrated valve body. The molecular tower assembly includes two molecular towers arranged side-by-side and a molecular sieve disposed within the molecular towers. The compression chamber is connected to the inlet ends of the two molecular towers of the molecular tower assembly through an outlet air passage, and the outlet end of the molecular tower assembly is connected to the oxygen output interface on the side wall of the compressor integrated valve body through an oxygen passage inside the compressor integrated valve body. At least one inlet pipe is externally connected to the compressor integrated valve body. By integrating the compressor integrated valve body, the ECU assembly, and the molecular tower assembly together, the overall size is small. By using the air passage inside the compressor integrated valve body to connect the compressor and the molecular tower assembly, the use of external piping can be reduced, the oxygen generation efficiency can be improved, and the oxygen generator can be conveniently installed in a vehicle in a modular manner.

[0005] Preferably, the booster pump assembly includes a pair of piston arms located in the compression chamber. An eccentric block is connected to the middle of the pair of piston arms. The eccentric block is connected to the main shaft of the drive motor. The gas outlet passages connected to the two molecular towers are respectively connected to the compression chambers at both ends of the pair of piston arms. Through the cooperation of the pair of piston arms, the drive motor and the eccentric block, the continuous output of compressed gas can be achieved. The compression chambers at both ends supply gas to the two molecular towers respectively, thereby improving the oxygen production efficiency.

[0006] Preferably, a filter is installed on the air intake pipe to ensure the cleanliness of the incoming air.

[0007] Preferably, an oxygen chamber is provided inside the molecular tower assembly between the molecular towers. The oxygen chamber is connected to the oxygen passage inside the compressor integrated valve body. A spring is installed at the end of the molecular tower away from the inlet end to abut against the molecular sieve. A one-way valve is provided between the end of the molecular tower near the spring and the oxygen chamber.

[0008] Preferably, the molecular sieve is equipped with filter cotton at at least one end, which can further filter the gas flowing through the molecular sieve.

[0009] The preferred ECU assembly includes an ECU housing, a cover plate located on one side of the ECU housing, and a control unit located inside the ECU housing. The control unit is electrically connected to the drive motor. Multiple control valves inserted into the compressor integrated valve body are installed inside the ECU housing. The control valves can switch and control the flow of air in the compressor integrated valve body to adapt to different oxygen supply modes.

[0010] Preferably, an oxygen sensor connected to the oxygen output interface is installed inside the ECU housing. The oxygen sensor is electrically connected to the control unit and can monitor the pressure, concentration, and flow rate of the discharged oxygen in real time, and feed back to the booster pump control system for real-time adjustment.

[0011] Preferably, a sealing ring is installed between the molecular tower assembly and the compressor integrated valve body to prevent gas from leaking from the gap between the compressor integrated valve body and the molecular tower assembly.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The compressor integrated valve body, ECU component and molecular tower assembly are integrated and installed together, resulting in a small overall size. The air passage inside the compressor integrated valve body connects the compressor and molecular tower assembly, which reduces the use of external pipelines, improves oxygen production efficiency, and facilitates modular installation of the oxygen generator in the car. The booster pump assembly uses a parallel piston arm to move back and forth to output compressed air, which can improve oxygen production efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a front sectional view of the present invention;

[0016] Figure 3 This is a side sectional view of the present invention;

[0017] Figure 4 This is a front sectional view of the compressor integrated valve body of this utility model.

[0018] Figure label:

[0019] 1. Oxygen output interface; 2. Compressor integrated valve body; 21. Opposite piston arm; 22. Eccentric block; 23. Compression chamber; 24. Outlet air passage; 3. Drive motor; 4. ECU assembly; 41. Cover plate; 42. ECU housing; 43. Oxygen sensor; 5. Molecular tower assembly; 51. Molecular sieve; 52. Oxygen chamber; 53. Spring; 6. Sealing ring; 7. Inlet pipe; 8. Filter. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] like Figure 1-4 As shown, this utility model addresses the problem of complex structures and inability to modularly install existing vehicle-mounted oxygen concentrators by providing the following technical solution: An integrated, modular vehicle-mounted oxygen concentrator includes a compressor integrated valve body 2. The compressor integrated valve body 2 has a compression chamber 23 inside, and a booster pump assembly is installed within the compression chamber 23. A drive motor 3 matching the booster pump assembly is installed on one side of the compressor integrated valve body 2. A molecular tower assembly 5 and an ECU assembly 4 are connected side-by-side on the other side of the compressor integrated valve body 2. The molecular tower assembly 5 includes two molecular towers arranged side-by-side and a molecular sieve 51 disposed within the molecular towers. The cavity 23 is connected to the air inlet of the two molecular towers of the molecular tower assembly 5 through the air outlet duct 24. At the same time, the air outlet of the molecular tower assembly 5 is connected to the oxygen output interface 1 on the side wall of the compressor integrated valve body 2 through the oxygen duct inside the compressor integrated valve body 2. The compressor integrated valve body 2 is externally connected to at least one air inlet pipe 7. The compressor integrated valve body 2, ECU component 4 and molecular tower assembly 5 are integrated and installed together. The overall size is small. The air duct inside the compressor integrated valve body 2 is used to connect the compressor and the molecular tower assembly, which can reduce the use of external pipelines, improve the oxygen production efficiency, and facilitate the modular installation of the oxygen generator in the car.

[0022] Specifically, the compressor integrated valve body 2 is modular, with multiple air passages inside, including oxygen passages and outlet air passages, which can be configured according to different oxygen supply and oxygen generation modes. The ECU component 4 is located on one side of the compressor integrated valve body 2. The ECU component 4 includes an ECU housing 42, a cover plate 41 located on one side of the ECU housing 42, and a control unit located inside the ECU housing 42. The control unit is electrically connected to the drive motor 3. Multiple control valves are installed inside the ECU housing 42 and inserted into the compressor integrated valve body 2. The control valves can switch and control the flow of air in the compressor integrated valve body 2 to adapt to different oxygen supply modes.

[0023] Various sensors can also be installed within the ECU component 4, corresponding to the various air passages within the compressor integrated valve body 2, without the need for external piping. For example, pressure sensors can be installed on the oxygen and exhaust air passages. It can also include an oxygen sensor 43 connected to the oxygen output interface 1. The oxygen sensor 43 is electrically connected to the control unit and can monitor the pressure, concentration, and flow rate of the discharged oxygen in real time, feeding back to the booster pump control system for real-time adjustment. The control unit can be connected to the vehicle's main control unit, enabling unified control of the oxygen generator through the vehicle's active unit.

[0024] The drive motor 3 can be a DC brushless motor, which can greatly extend the life of the oxygen concentrator's power source, and determine the motor speed and torque through sensorless control and pressure sensor cooperation.

[0025] In this embodiment, as Figure 4As shown, the booster pump assembly includes a counter-rotating piston arm 21 located in the compression chamber 23. An eccentric block 22 is connected to the middle of the counter-rotating piston arm 21. The eccentric block 22 is connected to the main shaft of the drive motor 3. The gas outlet ducts 24 connected to the two molecular towers are respectively connected to the compression chambers 23 at both ends of the counter-rotating piston arm 21. Through the cooperation of the counter-rotating piston arm 21, the drive motor 3 and the eccentric block 22, the continuous output of compressed gas can be realized. The compression chambers 23 at both ends supply gas to the two molecular towers respectively, thereby improving the oxygen production efficiency. In this configuration, the two pistons at both ends of the parallel piston arm 21 are pressurized separately as the motor rotates, and output to the same outlet. During alternating pressurization, the parallel piston arm 21 rotates together with the motor, making a yaw motion. One piston pressurizes and discharges air, while the other piston draws in air under negative pressure, and this cycle repeats. During intake, atmospheric pressure air is drawn from the motor and the outer cavity of the piston arm through the intake one-way valve. At this time, the stroke of one of the pistons reaches its maximum value. Due to the presence of the intake one-way valve, a sufficient amount of atmospheric pressure air can be stored, and the stored gas cannot return to the compression chamber 23. The stroke of the other piston, which is arranged opposite to it, reaches its maximum value. The minimum value is reached, and the gas stored in the previous cycle is pressurized and discharged from the compression chamber 23 through the exhaust check valve. Due to the presence of the exhaust check valve, the discharged gas cannot return to the compression chamber 23. At this time, a negative pressure intake and pressurized exhaust are completed. The motor rotates 180°, and when the motor rotates another 180°, pressurized exhaust is performed. The exhaust pressure can be monitored by a pressure sensor to confirm the working and loading of the booster pump. At the same time, in order to protect the pressure of the entire system within the ideal working pressure range, an overflow valve is set at the outlet of the booster pump assembly. When the pressure is too high, the high-pressure gas is discharged to the outside of the system through the pipeline.

[0026] In this embodiment, a filter 8 is installed on the air intake pipe 7 to ensure the cleanliness of the intake air. Two air intake pipes 7 can be provided, and filters 8 can be installed on both air intake pipes 7.

[0027] In this embodiment, as Figure 3 As shown, an oxygen chamber 52 is provided inside the molecular tower assembly 5 between the molecular towers. The oxygen chamber 52 is connected to the oxygen passage inside the compressor integrated valve body 2. A spring 53 is installed at the end of the molecular tower away from the inlet end, abutting against the molecular sieve 51. A one-way valve 54 is provided between the end of the molecular tower near the spring 53 and the oxygen chamber 52. At the same time, a filter cotton 55 is installed at at least one end of the molecular sieve 51, which can further filter the gas flowing through the molecular sieve 51.

[0028] The molecular tower stores a molecular sieve 51 that, under certain pressure, can perform pressure swing adsorption of nitrogen from the air and expel oxygen from the tower. After the oxygen is expelled, the remaining molecular sieve 51 combines with nitrogen until it becomes saturated, at which point it no longer produces pure oxygen. However, if the saturated molecular sieve 51 is flushed with oxygen, it will return to its original state. During system operation, the two molecular towers can be operated alternately via the control valve group in the ECU component 4. Each molecular tower is controlled by two control solenoid valves. When pressurized air enters one of the molecular towers, the molecular sieve adsorbs nitrogen and expels oxygen. Part of the expelled oxygen enters the pressure stabilizing bottle through a one-way valve, and part enters the other molecular tower through a throttling orifice. In the sub-tower, if the molecular sieve 51 in the molecular tower is saturated, oxygen passing through the molecular tower will flush out the nitrogen in the molecular sieve 51 and restore the molecular sieve 51 to its original state. The discharged nitrogen will be discharged through a solenoid valve. If the molecular tower is not saturated, all or part of the oxygen will be discharged through the solenoid valve. The opening and closing of the control distribution valve group can realize the alternating oxygen production and alternating nitrogen discharge of the two molecular towers. The control valve group can be a normally closed solenoid valve. One solenoid valve of one molecular tower is connected to the high-pressure gas source, and the other solenoid valve is connected to the exhaust port. Due to the noise during exhaust, a silencer can be installed. A throttling valve is installed between the two molecular towers. After throttling, the pressure drops, which can ensure the effective discharge of nitrogen from the molecular sieve 51.

[0029] Meanwhile, a sealing ring 6 is installed between the molecular tower assembly 5 and the compressor integrated valve body 2 to prevent gas from leaking from the gap between the compressor integrated valve body 2 and the molecular tower assembly 5.

[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0031] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is 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 as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

Claims

1. An integrated, prefabricated vehicle-mounted oxygen generator, characterized in that, The compressor integrated valve body (2) includes a compressor integrated valve body (2) with a compression chamber (23) inside. A booster pump assembly is installed in the compression chamber (23). A drive motor (3) matching the booster pump assembly is installed on one side of the compressor integrated valve body (2). A molecular tower assembly (5) and an ECU assembly (4) are connected side by side on the other side of the compressor integrated valve body (2). The molecular tower assembly (5) includes two molecular towers arranged side by side and a molecular sieve (51) arranged in the molecular tower. The compression chamber (23) is connected to the inlet end of the two molecular towers of the molecular tower assembly (5) through an outlet air passage (24). At the same time, the outlet end of the molecular tower assembly (5) is connected to the oxygen output interface (1) on the side wall of the compressor integrated valve body (2) through an oxygen passage inside the compressor integrated valve body (2). At least one air inlet pipe (7) is connected to the outside of the compressor integrated valve body (2).

2. The integrated prefabricated vehicle-mounted oxygen generator according to claim 1, characterized in that: The booster pump assembly includes a counter-rotating piston arm (21) located in the compression chamber (23). An eccentric block (22) is connected to the middle of the counter-rotating piston arm (21). The eccentric block (22) is connected to the main shaft of the drive motor (3). The exhaust duct (24) connected to the two molecular towers is connected to the compression chambers (23) at both ends of the counter-rotating piston arm (21).

3. The integrated prefabricated vehicle-mounted oxygen generator according to claim 1, characterized in that: A filter (8) is installed on the air intake pipe (7).

4. The integrated prefabricated vehicle-mounted oxygen generator according to claim 1, characterized in that: An oxygen chamber (52) is provided inside the molecular tower assembly (5) between the molecular towers. The oxygen chamber (52) is connected to the oxygen passage inside the compressor integrated valve body (2). A spring (53) is installed at the end of the molecular tower away from the inlet end, which abuts against the molecular sieve (51). A one-way valve (54) is provided between the end of the molecular tower near the spring (53) and the oxygen chamber (52).

5. The integrated prefabricated vehicle-mounted oxygen generator according to claim 4, characterized in that: The molecular sieve (51) is equipped with filter cotton (55) at at least one end.

6. The integrated prefabricated vehicle-mounted oxygen generator according to claim 1, characterized in that: The ECU assembly (4) includes an ECU housing (42), a cover plate (41) located on one side of the ECU housing (42), and a control unit located inside the ECU housing (42). The control unit is electrically connected to the drive motor (3). Multiple control valves inserted into the compressor integrated valve body (2) are installed inside the ECU housing (42).

7. The integrated prefabricated vehicle-mounted oxygen generator according to claim 6, characterized in that: An oxygen sensor (43) connected to the oxygen output interface (1) is installed inside the ECU housing (42), and the oxygen sensor (43) is electrically connected to the control unit.

8. The integrated prefabricated vehicle-mounted oxygen generator according to claim 1, characterized in that: A sealing ring (6) is installed between the molecular tower assembly (5) and the compressor integrated valve body (2).

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