oxygen generation equipment

Abstract

This utility model belongs to the field of oxygen generation technology and discloses an oxygen generation device, including a chassis, an air compressor unit, a filter assembly, a cooling assembly, and an oxygen generation component. The chassis includes an outer chassis and an inner chassis. The inner chassis is located inside the outer chassis and is inverted against the bottom wall of the outer chassis. The bottom wall of the outer chassis has an exhaust port, and the side walls of the outer chassis have an intake port and an oxygen exhaust connector. The top of the inner chassis has a cold air vent. The air compressor unit is located in the inner chassis. The filter assembly includes a primary filter and a secondary filter. The primary filter is located at the intake port, and the secondary filter is located on the outer side wall of the inner chassis, and the secondary filter is connected to the air inlet of the air compressor unit. The cooling assembly includes a radiator and a cooling fan. The radiator is connected to the air compressor unit. The oxygen generation component is located inside the outer chassis. The air inlet of the oxygen generation component is connected to the radiator, and the air outlet is connected to the oxygen exhaust connector. This oxygen generation device has good heat dissipation, high operational stability, a compact structure, high utilization of the internal space of the chassis, and a long service life.

Description

Technical Field

[0001] This utility model relates to the field of oxygen production technology, and in particular to an oxygen production device. Background Technology

[0002] An oxygen concentrator is a medical device that separates oxygen from the air to provide patients requiring oxygen therapy with a high concentration of oxygen. It plays an important role in medical emergency care and rehabilitation. The core principle of an oxygen concentrator is to separate oxygen from the air through physical or chemical methods. Common types include molecular sieve adsorption, membrane separation, and chemical reaction. Among these, the molecular sieve adsorption method involves a physical adsorption process without chemical reactions, resulting in no environmental pollution. Therefore, oxygen concentrators using molecular sieve technology are gaining increasing attention.

[0003] During the oxygen generation process of a molecular sieve oxygen generator, the air compressor inside the unit generates a significant amount of heat. If this heat cannot be dissipated in time, it can easily overheat and shut down, affecting the normal operation of the oxygen generator. Current molecular sieve oxygen generators typically use a fan to blow air directly onto the air compressor for cooling. However, because the air compressor is usually located inside the oxygen generator, the hot air blown by the fan tends to accumulate inside, preventing the heat from being dissipated quickly. This affects the operational stability of the air compressor and other components within the oxygen generator.

[0004] Therefore, there is an urgent need to develop an oxygen-generating device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an oxygen generating device that has good heat dissipation, high operational stability, compact structure, high utilization of internal space, and long service life.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] Oxygen generating device, including:

[0008] The chassis includes an outer chassis and an inner chassis. The inner chassis is located inside the outer chassis and is inverted against the bottom wall of the outer chassis. The bottom wall of the outer chassis is provided with an exhaust vent opposite to the inner chassis. The side wall of the outer chassis is provided with an air intake vent and an oxygen exhaust connector. The top of the inner chassis is provided with a cold air vent.

[0009] The air compressor unit is located in the inner casing;

[0010] The filter assembly includes a primary filter and a secondary filter. The primary filter is located at the air intake, and the secondary filter is located on the outer wall of the inner casing. The secondary filter is connected to the air inlet of the air compressor unit.

[0011] A cooling assembly is located at the top of the inner casing. The cooling assembly includes a radiator and a cooling fan. The radiator is connected to the air compressor unit.

[0012] An oxygen generating component is located inside the external chassis. The air inlet of the oxygen generating component is connected to the radiator, and the air outlet is connected to the oxygen exhaust connector.

[0013] As an optional technical solution for an oxygen generating device, the external enclosure includes a housing and a cover. The housing includes a bottom plate and first side plates located on opposite sides of the bottom plate. The cover includes a top plate and second side plates located on opposite sides of the top plate. The cover and the housing interlock, so that the top plate and the bottom plate are opposite to each other. The two first side plates and the two second side plates surround and form the four side walls of the external enclosure.

[0014] As an optional technical solution for the oxygen generating device, the housing further includes a first reinforcing rib, the two ends of which extend from the side edge of the bottom plate to the side edge of the two first side plates respectively; the housing cover further includes a second reinforcing rib, the two ends of which extend from the side edge of the top plate to the side edge of the two second side plates respectively.

[0015] As an optional technical solution for the oxygen generation device, the two second side plates are connected to the first reinforcing rib by the first bolt; the two first side plates are connected to the second reinforcing rib by the second bolt.

[0016] As an optional technical solution for an oxygen generating device, the inner casing includes an inner panel and third side panels located on both sides of the inner panel. The cold air vent is located on the inner panel. The two third side panels are arranged opposite each other along the direction in which the two first side panels point to each other. The other opposite sides of the third side panels and the opposite sides of the top panel abut against the second side panels on the corresponding sides.

[0017] As an optional technical solution for an oxygen generating device, the primary filter includes louvers, filter cotton, and a protective cover. The louvers are embedded in the air intake, the filter cotton is located inside the louvers, and the protective cover covers the filter cotton.

[0018] As an optional technical solution for the oxygen generating device, the oxygen generating device also includes a gas storage tank, which is located on the outside of the inner casing opposite to the secondary filter, and its top is connected to the oxygen generating component. A drain outlet is provided at the bottom, and a first solenoid valve is provided at the drain outlet.

[0019] As an optional technical solution for the oxygen generating device, the oxygen generating device also includes a water removal filter, which is located between the gas storage tank and the oxygen generating component.

[0020] As an optional technical solution for an oxygen generating device, the oxygen generating assembly includes a molecular sieve cylinder, a second solenoid valve, an oxygen storage tank, a nitrogen exhaust silencer, and a pressure regulating valve. The second solenoid valve is located at the air inlet end of the molecular sieve cylinder, the oxygen storage tank is connected to the oxygen outlet of the molecular sieve cylinder, the nitrogen exhaust silencer is located at the nitrogen exhaust port of the molecular sieve cylinder, and the pressure regulating valve is located at the outlet of the oxygen storage tank.

[0021] As an optional technical solution for oxygen generation devices, the air compressor unit includes an oil-free scroll compressor and a direct-drive motor, with the output end of the direct-drive motor connected to the oil-free scroll compressor.

[0022] The beneficial effects of this utility model are:

[0023] The oxygen generating device provided by this utility model includes a chassis, an air compressor unit, a filter assembly, a cooling assembly, and an oxygen generating assembly. The chassis includes an outer chassis and an inner chassis. The inner chassis is located inside the outer chassis and is inverted against the bottom wall of the outer chassis. The bottom wall of the outer chassis is provided with an exhaust port, and the side wall of the outer chassis is provided with an intake port and an oxygen exhaust connector. The top of the inner chassis is provided with a cold air vent. The air compressor unit is located in the inner chassis. The filter assembly includes a primary filter and a secondary filter. The primary filter is located at the intake port, and the secondary filter is connected to the air inlet of the air compressor unit. The cooling assembly is located on the top of the inner chassis and includes a radiator and a cooling fan. The oxygen generating assembly is located inside the outer chassis, and its air inlet is connected to the radiator. In actual production, under the suction action of the cooling fan and air compressor unit, a negative pressure is formed inside the casing. Air from the external environment can enter the casing (specifically, inside the outer casing and outside the inner casing) after passing through the air intake of the outer casing and being filtered by the primary filter. Part of the air entering the casing is then directed by the cooling fan to enter the inner casing through the cold air inlet. After circulating in the inner casing to dissipate heat from the air compressor unit, it is discharged from the casing through the exhaust port of the outer casing. The other part of the air is further filtered by the secondary filter and compressed by the air compressor unit. The compressed hot air enters the radiator for cooling and then enters the oxygen generating component. In the oxygen generating component, oxygen is produced through oxygen-nitrogen separation. The oxygen can be discharged through the oxygen exhaust connector for user use. Therefore, the airflow generated by the cooling fan can dissipate heat from the air compressor unit, effectively cooling it. Since the air compressor unit is located within the inner casing, and the airflow generated by the negative pressure of the intake air dissipates heat directly after exhausting, it reduces the accumulation of hot air inside the casing and prevents the heat generated by the air compressor unit from affecting other components inside (outside) the casing. This ensures stable heat dissipation for the air compressor unit and stable operation of other components, thereby improving the overall operational stability of the oxygen generator. Secondly, the cooling components are located at the top of the inner casing, with the cold air inlet at the top and the exhaust outlet at the bottom of the outer casing, opposite to the inner casing. This layout is reasonable, the internal structure is compact, and it saves space. Thirdly, the secondary filter can perform secondary filtration of the air entering the casing, reducing the amount of particulate impurities entering the air compressor unit. This reduces wear on the air compressor unit and extends the service life of the oxygen generator. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the oxygen generation principle of the oxygen generation device provided in this embodiment of the utility model;

[0025] Figure 2 This is a schematic diagram of the external structure of the oxygen generating device provided in this embodiment of the utility model;

[0026] Figure 3 This is an internal top view of the oxygen generating device provided in this embodiment of the utility model;

[0027] Figure 4 yes Figure 3Cross-sectional view at point AA;

[0028] Figure 5 This is an assembly drawing of the housing and inner casing provided in this embodiment of the utility model;

[0029] Figure 6 This is a schematic diagram of the air compressor unit provided in this embodiment of the utility model;

[0030] Figure 7 This is an assembly drawing of the housing, inner casing, and air compressor unit provided in this embodiment of the utility model;

[0031] Figure 8 This is a schematic diagram of the structure of the box lid provided in an embodiment of this utility model;

[0032] Figure 9 This is a schematic diagram of the structure of the oxygen generating component provided in this embodiment of the utility model.

[0033] In the picture:

[0034] 1. Chassis; 11. External Chassis; 111. Housing; 1111. Base Plate; 11111. Exhaust Vent; 11112. First Threaded Hole; 1112. First Side Plate; 11121. Oxygen Exhaust Connector; 1113. First Reinforcing Rib; 112. Cover; 1121. Top Plate; 11211. Second Threaded Hole; 1122. Second Side Plate; 1123. Second Reinforcing Rib; 1124. Handle; 12. Internal Chassis; 121. Inner Plate; 1211. Cold Air Vent; 122. Third Side Plate; 13. Base Frame; 2. Air Compressor Unit; 21. Oil-Free Scroll Compressor; 211. Fan; 22. Direct-drive motor; 23. Shock absorber; 24. Base; 3. Filter assembly; 31. Primary filter; 311. Louver; 312. Filter cotton; 313. Protective cover; 32. Secondary filter; 33. Gas collection box; 331. Mounting hole; 4. Cooling assembly; 41. Radiator; 42. Cooling fan; 5. Oxygen generating assembly; 51. Molecular sieve cylinder; 52. Second solenoid valve; 53. Oxygen storage tank; 54. Nitrogen venting silencer; 55. Pressure regulating valve; 56. Nitrogen venting port; 57. Control circuit board; 6. Gas storage tank; 61. First solenoid valve; 7. Water removal filter; 8. Check valve. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0036] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0039] This embodiment provides an oxygen generating device with good heat dissipation, high operational stability, compact structure, high utilization of internal space in the chassis 1, and long service life.

[0040] Specifically, such as Figures 1 to 9As shown, the oxygen generating device includes a casing 1, an air compressor unit 2, a filter assembly 3, a cooling assembly 4, and an oxygen generating assembly 5. The casing 1 includes an outer casing 11 and an inner casing 12. The inner casing 12 is located inside the outer casing 11 and is inverted against the bottom wall of the outer casing 11. The bottom wall of the outer casing 11 is provided with an exhaust port 11111 opposite to the inner casing 12. The side wall of the outer casing 11 is provided with an air intake port and an oxygen exhaust connector 11121. The top of the inner casing 12 is provided with a cold air vent 1211. The air compressor unit 2 is located in the inner casing 12. The filter assembly 3 includes a primary filter 31 and a secondary filter 32. The primary filter 31 is located at the air intake port, and the secondary filter 32 is located on the outer side wall of the inner casing 12 and is connected to the air intake port of the air compressor unit 2. The cooling assembly 4 includes a radiator 41 and a cooling fan 42, both located on the top of the inner casing 12. The radiator 41 is connected to the air compressor unit 2. The oxygen generating component 5 is located inside the external casing 11. The air inlet of the oxygen generating component 5 is connected to the radiator 41, and the air outlet is connected to the oxygen exhaust connector 11121.

[0041] In actual production, under the suction action of cooling fan 42 and air compressor unit 2, a negative pressure is formed inside the casing 1. Air from the external environment can enter the casing 1 (specifically, inside the outer casing 11 and outside the inner casing 12) through the air intake of the outer casing 11 and filtered by the primary filter 31. Part of the air entering the casing 1 is cooled by the cooling fan 42 and enters the inner casing 12 through the cold air outlet 1211. After circulating in the inner casing 12 to dissipate heat from the air compressor unit 2, it is discharged from the casing 1 through the exhaust outlet 11111 of the outer casing 11. The other part of the air is filtered a second time by the secondary filter 32 and compressed by the air compressor unit 2. The compressed hot air enters the radiator 41 for cooling and then enters the oxygen generating component 5. Oxygen is produced in the oxygen generating component 5 through oxygen-nitrogen separation. The oxygen can be discharged through the oxygen exhaust connector 11121 for user use. Therefore, the airflow generated by the cooling fan 42 can dissipate heat from the air compressor unit 2, achieving a cooling effect. Since the air compressor unit 2 is located in the inner casing 12, and the airflow generated by the suction negative pressure dissipates heat from the air compressor unit 2 before being directly discharged, it can reduce the accumulation of hot air inside the casing 1 and prevent the heat generated by the air compressor unit 2 from affecting other components inside the casing 1 (outside the inner casing 12). This ensures stable heat dissipation of the air compressor unit 2 and stable operation of other components, thereby improving the overall operation of the oxygen generation unit. Firstly, the cooling component 4 is located at the top of the inner casing 12, the cold air vent 1211 is located at the top of the inner casing 12, and the exhaust vent 11111 is located at the bottom of the outer casing 11 and opposite to the inner casing 12. The layout is reasonable, the internal structure of the casing 1 is compact, and it saves space. Secondly, the secondary filter 32 can perform secondary filtration on the air entering the casing 1, reducing the amount of particulate impurities in the air entering the air compressor unit 2, which can reduce the wear on the air compressor unit 2. At the same time, the service life of the secondary filter 32 is extended, thereby extending the service life of the oxygen generating unit.

[0042] It should be noted that in this embodiment, there are two cold air vents 1211. One of them is directly opposite the air compressor unit 2, which facilitates the direct blowing of air onto the air compressor unit 2. The other is directly opposite the radiator 41, which facilitates the airflow to carry away the heat of the radiator 41, cool the radiator 41, and then enter the inner casing 12 for exhaust, so as to avoid the heat of the radiator 41 accumulating in the outer casing 11.

[0043] Optionally, the external enclosure 11 includes a body 111 and a cover 112. The body 111 includes a bottom plate 1111 and first side plates 1112 located on opposite sides of the bottom plate 1111. The cover 112 includes a top plate 1121 and second side plates 1122 located on opposite sides of the top plate 1121. The cover 112 and the body 111 are interlocked, so that the top plate 1121 and the bottom plate 1111 form the top and bottom walls of the external enclosure 11. The two first side plates 1112 and the two second side plates 1122 surround and form the four side walls of the external enclosure 11. The external enclosure 11 adopts a structure in which the slotted body 111 and the slotted cover 112 are interlocked, which is convenient for assembly. Compared to a closed enclosure 111, this enclosure 111 has only two side walls (first side panels 1112), with the other two sides open, providing a large operating space when installing internal components. Compared to an enclosure 111 with two adjacent side walls, the internal components of the enclosure 1 can be evenly distributed and fixed to the two opposite side walls (first side panels 1112), preventing the enclosure 111 from tipping over. Compared to an enclosure 111 with only a bottom wall (bottom plate 1111), components can be fixed on both side walls of this enclosure 111, allowing all internal components to be installed before closing the enclosure cover 112.

[0044] In this embodiment, the outer wall of the top plate 1121 (the side facing away from the inner casing 12) is provided with a handle 1124 to facilitate the installation of the cover 112 onto the casing 111.

[0045] Furthermore, the housing 111 also includes a first reinforcing rib 1113, with both ends of the first reinforcing rib 1113 extending from the side edge of the bottom plate 1111 to the side edges of the two first side plates 1112 respectively; the lid 112 also includes a second reinforcing rib 1123, with both ends of the second reinforcing rib 1123 extending from the side edge of the top plate 1121 to the side edges of the two second side plates 1122 respectively. The aforementioned side edges refer to the contact and connection points between the housing 111 and the lid 112. The first reinforcing rib 1113 and the second reinforcing rib 1123 on the same side are arranged opposite each other and form a U-shape, increasing the structural strength of the connection between the housing 111 and the lid 112.

[0046] Furthermore, the two second side plates 1122 are connected to the first reinforcing rib 1113 by first bolts; the two first side plates 1112 are connected to the second reinforcing rib 1123 by second bolts. Specifically, the outer side of the bottom plate 1111 is provided with a first threaded hole 11112, and the first bolt passes through the second side plate 1122 and connects to the first threaded hole 11112; the outer side of the top plate 1121 is provided with a second threaded hole 11211, and the second bolt passes through the first side plate 1112 and connects to the second threaded hole 11211.

[0047] Optionally, the inner chassis 12 includes an inner panel 121 and third side panels 122 located on both sides of the inner panel 121. The cold air vent 1211 is located on the inner panel 121. The two third side panels 122 are arranged opposite each other along the direction in which the two first side panels 1112 point to each other. The other opposite sides of the third side panels 122 and the opposite sides of the top panel 1121 abut against the corresponding second side panels 1122. The inner chassis 12 can be formed by the cooperation of one inner panel 121 and two third side panels 122 with the outer chassis 11. The material usage is small and the cost is low.

[0048] In this embodiment, the edges of the third side plate 122 are provided with outward folded edges, and bolts pass through the outward folded edges and the bottom plate 1111 to connect the inner casing 12 and the outer casing 11.

[0049] Optionally, the bottom of the chassis 1 (outer chassis 11) is provided with a base frame 13 to facilitate the placement and installation of the chassis 1.

[0050] Optionally, continue as follows Figure 4 and Figure 5 As shown, the filter assembly 3 also includes an air collection box 33 and an air pipe (not shown in the figure). The air collection box 33 is fixed to the outer side wall of the inner casing 12. The air collection box 33 is provided with a mounting hole 331 for installing a secondary filter 32. The two ends of the air pipe are connected to the air compressor unit 2 and the air collection box 33.

[0051] In this embodiment, the gas collection box 33 is fixed to the outer wall of the third side plate 122 of the inner casing 12.

[0052] Optionally, a base 24 is fixed on the bottom wall of the outer casing 11 located inside the inner casing 12, and the air compressor unit 2 is mounted on the base 24 via a shock absorber 23.

[0053] In this embodiment, continue as follows Figure 6As shown, the air compressor unit 2 includes an oil-free scroll compressor 21 and a direct-drive motor 22, with the output end of the direct-drive motor 22 connected to the oil-free scroll compressor 21. The oil-free scroll compressor 21 is a high-efficiency air compressor that uses scroll compression technology and requires no lubricating oil, avoiding air pollution. It operates smoothly with low mechanical vibration, low noise, long service life, and high energy efficiency, overcoming the shortcomings of piston compressors, such as significant decrease in volumetric efficiency and low oxygen output at high altitudes. The direct-drive motor 22 is a technology that directly connects the motor to the compressor without the need for belts or gear drives, resulting in low energy loss and high efficiency.

[0054] Furthermore, the top of the oil-free scroll compressor 21 is equipped with a heat dissipation fan 211, which further improves the heat dissipation effect of the air compressor unit 2.

[0055] Optionally, the oxygen generating device also includes an air storage tank 6, which is located on the outside of the inner casing 12 opposite to the secondary filter 32. The top of the air storage tank 6 is connected to the oxygen generating assembly 5, and the bottom is provided with a drain outlet. A first solenoid valve 61 is installed at the drain outlet. The compressed air output by the air compressor unit 2 is cooled by the radiator 41 and then enters the air storage tank 6 for further cooling and dehydration. This removes moisture from the air and prevents moisture in the air from affecting the oxygen generating efficiency of the oxygen generating assembly 5, thereby extending the service life of the oxygen generating assembly 5. The first solenoid valve 61 controls the opening and closing of the drain outlet to periodically drain the water accumulated in the air storage tank 6 to the bottom of the casing 1.

[0056] In this embodiment, the gas storage tank 6 and the gas collection box 33 are located on the outer side walls of the two third side plates 122, respectively.

[0057] Furthermore, the oxygen generating device also includes a water removal filter 7, which is located between the air storage tank 6 and the oxygen generating component 5. The water removal filter 7 performs secondary water removal on the air, further reducing the impact of moisture in the air on the oxygen generating efficiency of the oxygen generating component 5, thereby further extending the service life of the oxygen generating component 5.

[0058] Optionally, the primary filter 31 includes louvers 311, filter cotton 312, and a protective cover 313. The louvers 311 are embedded in the air intake, the filter cotton 312 is located inside the louvers 311, and the protective cover 313 covers the filter cotton 312 to protect it. The external environment enters the external unit 11 through the louvers 311 and is initially filtered by the filter cotton 312.

[0059] In this embodiment, both first side plates 1112 of the housing 111 are provided with air intakes, but the oxygen exhaust connector 11121 is located on the first side plate 1112 on the side where the gas storage tank 6 is located.

[0060] Optionally, the oxygen generating assembly 5 includes a molecular sieve cylinder 51, a second solenoid valve 52, an oxygen storage tank 53, a nitrogen venting silencer 54, and a pressure regulating valve 55. The second solenoid valve 52 is located at the air inlet of the molecular sieve cylinder 51, the oxygen storage tank 53 is connected to the oxygen outlet of the molecular sieve cylinder 51, the nitrogen venting silencer 54 is located at the nitrogen venting port 56 of the molecular sieve cylinder 51, and the pressure regulating valve 55 is located at the outlet of the oxygen storage tank 53. The second solenoid valve 52 is used to control the amount of air entering the molecular sieve cylinder 51, the oxygen storage tank 53 is used to store the generated oxygen, the pressure regulating valve 55 is used to regulate the gas pressure inside the oxygen storage tank 53, and the nitrogen venting silencer 54 reduces the noise of nitrogen discharge.

[0061] In this embodiment, the oxygen generating device also includes a one-way valve 8, which is located between the pressure regulating valve 55 and the oxygen discharge connector 11121. The one-way valve 8 allows oxygen to be output in only one direction.

[0062] Furthermore, the oxygen generating assembly 5 also includes a control circuit board 57. The control circuit board 57 is located on the side wall of the outer casing 11 and is used to control the second solenoid valve 52.

[0063] In this embodiment, the oxygen generating component 5 is located inside the outer casing 11 and on top of the inner casing 12.

[0064] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An oxygen generating device, characterized by comprising: include: The chassis (1) includes an outer chassis (11) and an inner chassis (12). The inner chassis (12) is located inside the outer chassis (11) and is upside down on the bottom wall of the outer chassis (11). The bottom wall of the outer chassis (11) is provided with an exhaust port (11111) opposite to the inner chassis (12). The side wall of the outer chassis (11) is provided with an air intake port and an oxygen exhaust connector (11121). The top of the inner chassis (12) is provided with a cold air vent (1211). Air compressor unit (2) is located in the inner casing (12); The filter assembly (3) includes a primary filter (31) and a secondary filter (32). The primary filter (31) is located at the air intake, and the secondary filter (32) is located on the outer wall of the inner casing (12). The secondary filter (32) is connected to the air inlet of the air compressor unit (2). A cooling assembly (4) is located on top of the inner casing (12). The cooling assembly (4) includes a radiator (41) and a cooling fan (42). The radiator (41) is connected to the air compressor unit (2). The oxygen generating component (5) is located inside the external casing (11). The air inlet of the oxygen generating component (5) is connected to the radiator (41), and the air outlet is connected to the oxygen exhaust connector (11121).

2. The oxygen manufacturing apparatus according to claim 1, characterized by The external enclosure (11) includes a body (111) and a cover (112). The body (111) includes a bottom plate (1111) and first side plates (1112) located on opposite sides of the bottom plate (1111). The cover (112) includes a top plate (1121) and second side plates (1122) located on opposite sides of the top plate (1121). The cover (112) and the body (111) are cross-fitted, so that the top plate (1121) and the bottom plate (1111) are opposite to each other. The two first side plates (1112) and the two second side plates (1122) surround and form the four side walls of the external enclosure (11).

3. The oxygen manufacturing apparatus according to claim 2, characterized by The box body (111) further includes a first reinforcing rib (1113), the two ends of which extend from the side edge of the bottom plate (1111) to the side edge of the two first side plates (1112); the box cover (112) further includes a second reinforcing rib (1123), the two ends of which extend from the side edge of the top plate (1121) to the side edge of the two second side plates (1122).

4. The oxygen manufacturing apparatus according to claim 3, characterized by The two second side plates (1122) are connected to the first reinforcing rib (1113) by the first bolt; the two first side plates (1112) are connected to the second reinforcing rib (1123) by the second bolt.

5. The oxygen manufacturing apparatus according to claim 2, wherein The inner casing (12) includes an inner panel (121) and third side panels (122) located on both sides of the inner panel (121). The cold air vent (1211) is located on the inner panel (121). The two third side panels (122) are arranged opposite to each other in the direction that the two first side panels (1112) point to each other. The other opposite sides of the third side panels (122) and the opposite sides of the top plate (1121) abut against the second side panels (1122) on the corresponding sides.

6. The oxygen manufacturing apparatus according to any one of claims 1 to 5, characterized by, The primary filter (31) includes a louver (311), a filter cotton (312), and a protective cover (313). The louver (311) is embedded in the air intake, the filter cotton (312) is located inside the louver (311), and the protective cover (313) covers the filter cotton (312).

7. The oxygen generating apparatus according to any one of claims 1-5, characterized in that, The oxygen generating device also includes a gas storage tank (6), which is located on the side opposite to the secondary filter (32) on the outside of the inner casing (12), and its top is connected to the oxygen generating component (5), and its bottom is provided with a drain outlet, and a first solenoid valve (61) is provided at the drain outlet.

8. The oxygen generating device according to claim 7, characterized in that, The oxygen generating device also includes a water removal filter (7), which is located between the gas storage tank (6) and the oxygen generating component (5).

9. The oxygen generating apparatus according to any one of claims 1-5, characterized in that, The oxygen generating assembly (5) includes a molecular sieve cylinder (51), a second solenoid valve (52), an oxygen storage tank (53), a nitrogen exhaust silencer (54), and a pressure regulating valve (55). The second solenoid valve (52) is located at the air inlet of the molecular sieve cylinder (51). The oxygen storage tank (53) is connected to the oxygen outlet of the molecular sieve cylinder (51). The nitrogen exhaust silencer (54) is located at the nitrogen exhaust port (56) of the molecular sieve cylinder (51). The pressure regulating valve (55) is located at the outlet of the oxygen storage tank (53).

10. The oxygen generating apparatus according to any one of claims 1-5, characterized in that, The air compressor unit (2) includes an oil-free scroll compressor (21) and a direct-drive motor (22), the output end of which is connected to the oil-free scroll compressor (21).

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