Oxygen bin for portable oxygen generator

Abstract

The utility model discloses an oxygen chamber for a portable oxygenerator, which comprises an oxygen chamber main body, a sealing cavity used for containing oxygen is formed in the oxygen chamber main body, an oxygen inlet and an oxygen outlet are arranged on the side wall of the oxygen chamber main body, the oxygen inlet is communicated with an exhaust port of a molecular sieve of the oxygenerator through an air inlet pipeline, and the oxygen outlet is communicated with an exhaust port of a molecular sieve of the oxygenerator through an air outlet pipeline. The oxygen outlet is communicated with an oxygen conveying device through an air outlet pipeline to supply oxygen, the inner space of the sealing cavity is divided into a plurality of independent air storage grids through partition ribs, an air inlet is formed in one side wall of each air storage grid, and an air outlet is formed in the other side wall of each air storage grid. Oxygen entering from the oxygen inlet in the side wall of the oxygen bin body sequentially passes through the air inlets and the air outlets of all the air storage grids, flows through all the air storage grids and is finally discharged from the oxygen outlet in the side wall of the oxygen bin body, buffering of instantaneous airflow impact is achieved without a throttling valve, and the oxygen bin is simple in structure, high in strength, not prone to being damaged and suitable for popularization and application. And the light-weight and thin-type design requirements of the portable oxygen generator can be met.

Description

Technical Field

[0001] This utility model relates to the field of oxygen generator technology, and in particular to an oxygen chamber for a portable oxygen generator. Background Technology

[0002] Portable oxygen concentrators require small size, light weight, high oxygen output pressure, and a buffered oxygen delivery system. Therefore, the oxygen chamber inside a portable oxygen concentrator must be flat, irregularly shaped, cushioned, and of high strength. Under these requirements, the oxygen chamber must withstand high pressure, have minimal deformation, high strength, light weight, and mitigate the impact of sudden airflow.

[0003] Currently, portable oxygen concentrators on the market typically use high-strength materials to construct their oxygen chambers, featuring thicker walls and complex internal reinforcement structures to meet the high-strength design requirements. Additionally, a throttling valve is added to the outlet pipe to buffer airflow impact. This design utilizes expensive and difficult-to-process materials, significantly increasing the manufacturing cost of the oxygen concentrator. It also results in a heavier oxygen chamber, hindering the lightweight design requirements of portable oxygen concentrators. Furthermore, the complex internal structure of this type of oxygen chamber makes it prone to malfunctions after prolonged use, and these malfunctions are difficult to repair, often leading to the chamber becoming unusable and affecting the normal operation of the oxygen concentrator. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides an oxygen chamber for a portable oxygen concentrator. The oxygen chamber for the portable oxygen concentrator has a simple structure, high overall strength, low manufacturing cost, and is not easily damaged during long-term use.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: an oxygen chamber for a portable oxygen generator, comprising an oxygen chamber body, wherein a sealed cavity for containing oxygen is formed inside the oxygen chamber body, and an oxygen inlet and an oxygen outlet are provided on the side wall of the oxygen chamber body. The oxygen inlet is connected to the exhaust port of the molecular sieve of the oxygen generator through an air inlet pipe, and the oxygen outlet is connected to an oxygen delivery device for supplying oxygen through an air outlet pipe. The sealed cavity is divided into several independent gas storage compartments by partition ribs. Each gas storage compartment has an air inlet on one side wall and an air outlet on the other side wall. The oxygen entering from the oxygen inlet on the side wall of the oxygen chamber body flows sequentially through the air inlet and air outlet of each gas storage compartment and is finally discharged from the oxygen outlet on the side wall of the oxygen chamber body.

[0006] As a further improvement of this utility model, several partition ribs inside the sealed cavity are arranged in a crisscross pattern, and each gas storage cell is arranged in a grid-like structure along the horizontal and vertical directions.

[0007] As a further improvement of this utility model, the air inlet and air outlet on the side wall of the gas storage cell are openings provided on two different side walls of the gas storage cell. The opening on the side wall shared by adjacent gas storage cells along the oxygen flow direction serves as both the air outlet of the previous gas storage cell and the air inlet of the next gas storage cell.

[0008] As a further improvement of this utility model, the gas storage cell has an air inlet and an air outlet on its parallel and opposite sidewalls for the airflow to flow forward in the same direction, and the gas storage cell has an air inlet and an air outlet on its intersecting adjacent sidewalls for the airflow to turn and flow forward, and oxygen flows through each gas storage cell along a tortuous path.

[0009] As a further improvement of this utility model, the oxygen chamber body forms a flat structure that matches the spatial shape of the oxygen chamber inside the oxygen generator, and forms a flat sealed cavity that is consistent with the shape of the oxygen chamber body. Several partition ribs evenly divide the internal space of the sealed cavity into several gas storage compartments of the same size.

[0010] As a further improvement of this utility model, the adjacent inner walls of the gas storage compartment are connected by rounded corners.

[0011] As a further improvement of this utility model, the oxygen chamber body includes an upper cover and a lower cover. Both the upper and lower covers have an opening groove structure with one side opening. A partition rib is integrally formed within the opening groove structure, dividing the opening groove structure of the upper and lower covers into several grid grooves with one side opening. Oxygen inlet and outlet notches are provided opposite each other on the sidewalls of the upper and lower covers. Furthermore, several buffer notches are provided opposite each other on the sidewalls of the partition ribs within the upper and lower covers facing the opening direction of the opening groove structure. The upper and lower covers open... The openings are sealed together, and the upper and lower covers are fixedly connected to form an integral structure. The opening slots of the upper and lower covers are joined together to form a sealed cavity. The oxygen inlet and outlet notches on the side walls of the upper and lower covers are joined together to form oxygen inlets and outlets, respectively. The ribs inside the upper and lower covers are joined together to form gas storage compartments. The buffer notches on the ribs inside the upper and lower covers are joined together to form the air inlets and outlets of each gas storage compartment.

[0012] As a further improvement of this utility model, semi-annular cylindrical oxygen inlet grooves and oxygen outlet grooves are provided on the outer side walls of the upper and lower covers, respectively. The oxygen inlet grooves and oxygen outlet grooves are respectively connected to the oxygen inlet notches and oxygen outlet notches on the side walls of the upper and lower covers. The oxygen inlet grooves on the upper and lower covers are sealed together to form an outwardly protruding oxygen inlet connector that communicates with the oxygen inlet. The oxygen outlet grooves on the upper and lower covers are sealed together to form an outwardly protruding oxygen outlet connector that communicates with the oxygen outlet. The air inlet pipe and air outlet pipe are quickly detachable and sealed on the oxygen inlet connector and oxygen outlet connector.

[0013] As a further improvement of this utility model, the upper cover and the lower cover are sealed together by hot-melt welding; or, the side walls and the end faces of the partition ribs inside the upper cover and the lower cover are provided with opposing sealing grooves, and sealing rings are tightly embedded in the sealing grooves, and the upper cover and the lower cover are fixedly connected by buckles or connectors.

[0014] As a further improvement of this utility model, a flange is also provided on the outer wall of the oxygen chamber body, and the flange is provided with mounting holes for fixing the oxygen chamber body into the oxygen generator.

[0015] The beneficial effects of this utility model are as follows: This utility model uses a rib-based grid design within the sealed cavity of the oxygen chamber to divide the chamber into multiple small grid-like gas storage cells. The ribs, while serving as dividers, significantly increase the structural strength of the oxygen chamber and reduce overall deformation. Each gas storage cell within the oxygen chamber has two openings, one inlet and one outlet. The opening size is adjusted according to the product's pressure and flow rate to buffer instantaneous airflow. Through the air path design between the various gas storage cells inside the oxygen chamber, the gas entering through the oxygen inlet must pass through all the gas storage cells sequentially, and each gas storage cell can only be traversed once, before finally flowing out from the oxygen outlet. This air path design also achieves… To buffer the impact of instantaneous airflow, the throttle valve is eliminated. All vertically intersecting ribs inside the oxygen chamber are designed with arc-shaped bevels at the junctions, greatly enhancing the strength of the oxygen chamber and preventing excessive stress at the junctions caused by deformation, which could lead to cracking of the chamber body. Through the optimized design of the oxygen chamber structure, this invention allows the oxygen chamber to meet high strength requirements without the need for special high-strength materials. Furthermore, this invention simplifies the internal structure of the oxygen chamber, avoiding various complex reinforcement designs, effectively reducing the overall weight and manufacturing cost of the oxygen chamber. The oxygen chamber is also less prone to damage during long-term use. This invention is beneficial for meeting the lightweight and thin design requirements of portable oxygen concentrators. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention installed inside an oxygen concentrator;

[0017] Figure 2 This is a perspective view of the top cover of this utility model;

[0018] Figure 3 for Figure 2 Enlarged view of section A in the middle;

[0019] Figure 4 This is a schematic diagram of the airflow path of this utility model. Detailed Implementation

[0020] Example: An oxygen chamber for a portable oxygen concentrator includes an oxygen chamber body 1. The oxygen chamber body 1 forms a sealed cavity for containing oxygen. The oxygen chamber body 1 has an oxygen inlet and an oxygen outlet on its side wall. The oxygen inlet is connected to the exhaust port of the molecular sieve 4 of the oxygen concentrator through an air inlet pipe. The oxygen outlet is connected to an oxygen delivery device 5 through an air outlet pipe to supply oxygen. The sealed cavity is divided into several independent gas storage cells 7 by partition ribs 6. Each gas storage cell 7 has an air inlet on one side wall and an air outlet on the other side wall. The oxygen entering from the oxygen inlet on the side wall of the oxygen chamber body 1 flows sequentially through the air inlet and air outlet of each gas storage cell 7 and is finally discharged from the oxygen outlet on the side wall of the oxygen chamber body 1.

[0021] The sealed cavity inside the oxygen chamber body 1 is divided into multiple gas storage cells 7 by the partition ribs 6. The grid structure strengthens the structure of the oxygen chamber body. Small holes are set on the side walls of each gas storage cell 7 to form air inlets and outlets for airflow. Since the air inlets and outlets are on different side walls, the airflow in the gas storage cell 7 forms a single-inlet and single-outlet air path layout. The airflow velocity is automatically reduced during the flow through the air inlet and outlet, realizing a buffer function without a throttle valve. This eliminates the need for a throttle valve, which helps to reduce costs and simplify the oxygen chamber structure. This oxygen chamber structure allows it to be made of common materials, such as ABS and PC, effectively reducing material costs.

[0022] The sealed cavity contains several ribs 6 arranged in a crisscross pattern, and the gas storage cells 7 are arranged in both horizontal and vertical directions to form a grid structure. The grid design divides the interior of the oxygen chamber body 1 into multiple small cuboid cells, which greatly increases the structural strength of the oxygen chamber body 1 and reduces the deformation of the entire oxygen chamber. The ribs 6 can also be arranged in other ways to form gas storage cells 7 of other shapes, such as gas storage cells 7 with a cross-section of rhombus, hexagon, etc.

[0023] The air inlet and outlet on the sidewall of the gas storage cell 7 are openings located on two different sidewalls of the gas storage cell 7. The openings on the shared sidewalls of adjacent gas storage cells 7 along the oxygen flow direction serve as both the outlet of the preceding gas storage cell 7 and the inlet of the following gas storage cell 7. The size of the openings is adjusted according to the product pressure and flow rate to buffer instantaneous airflow. The openings can be square or round, and the optimal location is in the middle of the sidewall of the gas storage cell 7. They can also be designed at other locations as needed to adjust the airflow direction, velocity, etc.

[0024] The gas storage cell 7 has an air inlet and an air outlet on its parallel and opposite sidewalls for airflow to flow forward in the same direction. The gas storage cell 7 also has an air inlet and an air outlet on its intersecting adjacent sidewalls for airflow to turn and flow forward. Oxygen flows through each gas storage cell 7 along a tortuous path.

[0025] By opening holes on the side walls of different gas storage cells 7, the airflow direction can be adjusted, thereby controlling the airflow to pass through each gas storage cell 7 one by one, and the airflow only passes through the side wall of each gas storage cell 7 once. This air path design achieves buffering against instantaneous airflow impact, eliminates the need for a throttle valve, and avoids the situation where oxygen cannot be smoothly discharged from the gas storage cell 7, ensuring that oxygen flows smoothly along the designed path.

[0026] The oxygen chamber body 1 forms a flat structure that matches the shape of the space inside the oxygen generator that accommodates the oxygen chamber. Inside, a flat sealed cavity with the same shape as the oxygen chamber body 1 is formed. Several partition ribs 6 evenly divide the internal space of the sealed cavity into several gas storage compartments 7 of the same size.

[0027] The adjacent inner walls of the gas storage compartment 7 are connected by rounded corner surfaces 8. The junction of the internal partition 6 of the oxygen chamber body 1 adopts a rounded corner design, which is connected by a rounded surface, greatly enhancing the strength of the oxygen chamber and avoiding the chamber body cracking due to excessive stress at the junction caused by deformation of the oxygen chamber.

[0028] The oxygen chamber body 1 includes an upper cover 9 and a lower cover. Both the upper cover 9 and the lower cover have an opening groove structure with one side opening. A partition rib 6 is integrally formed within the opening groove structure, dividing the opening groove structure of the upper cover 9 and the lower cover into several grid grooves with one side opening. The side walls of the upper cover 9 and the lower cover are provided with oxygen inlet and oxygen outlet openings facing each other. Furthermore, the side walls of the partition ribs 6 within the upper cover 9 and the lower cover facing the opening direction of the opening groove structure are provided with several buffer notches 10 facing each other. The openings of the upper cover 9 and the lower cover are sealed together. The upper cover 9 and the lower cover 9 are connected together and fixedly connected to form an integral structure. The opening slots of the upper cover 9 and the lower cover 9 are spliced ​​together to form a sealed cavity. The oxygen inlet and oxygen outlet notches on the side walls of the upper cover 9 and the lower cover 9 are spliced ​​together to form oxygen inlets and oxygen outlets, respectively. The ribs 6 inside the upper cover 9 and the lower cover 9 are spliced ​​together to form gas storage cells 7. The buffer notches 10 on the ribs 6 inside the upper cover 9 and the lower cover 9 are spliced ​​together to form the air inlets and air outlets of each gas storage cell 7. The oxygen chamber body 1 adopts the structure of splicing the upper cover 9 and the lower cover 9. The upper cover 9 and the lower cover 9 can be efficiently formed by molds. After forming, they can be sealed and spliced ​​together, resulting in extremely high production efficiency.

[0029] The outer walls of the upper cover 9 and the lower cover are respectively provided with semi-annular cylindrical oxygen inlet grooves 11 and oxygen outlet grooves 12. The oxygen inlet grooves 11 and 12 are respectively connected to the oxygen inlet and oxygen outlet notches on the side walls of the upper cover 9 and the lower cover. The oxygen inlet grooves 11 on the upper cover 9 and the lower cover are sealed together to form an outwardly protruding oxygen inlet connector 2 that communicates with the oxygen inlet. The oxygen outlet grooves 12 on the upper cover 9 and the lower cover are sealed together to form an outwardly protruding oxygen outlet connector 3 that communicates with the oxygen outlet. The air inlet pipe and the air outlet pipe are sealed and can be quickly disassembled and are fitted onto the oxygen inlet connector 2 and the oxygen outlet connector 3.

[0030] By integrally forming semi-annular cylindrical oxygen inlet groove 11 and oxygen outlet groove 12 on the side walls of the upper cover 9 and the lower cover, after the upper cover 9 and the lower cover are spliced, oxygen inlet connector 2 and oxygen outlet connector 3 are formed on the side wall of the oxygen chamber body 1, which facilitates quick insertion and installation of the air inlet pipe and the air outlet pipe. Multiple flanges are optimally provided on the outer side walls of the semi-annular cylindrical oxygen inlet groove 11 and oxygen outlet groove 12, which can improve the sealing performance of the air inlet pipe and the air outlet pipe during insertion.

[0031] The upper cover 9 and the lower cover are sealed together by hot-melt welding; or, the side walls and the end faces of the partition 6 inside the upper cover 9 and the lower cover are provided with opposing sealing grooves, and sealing rings are tightly embedded in the sealing grooves, and the upper cover 9 and the lower cover are fixedly connected by buckles or connectors.

[0032] The outer wall of the oxygen chamber body 1 is also provided with a flange 13, which has mounting holes for fixing the oxygen chamber body 1 inside the oxygen generator. The flange 13 can be designed on either the upper cover 9 or the lower cover, or the flanges 13 can be arranged opposite each other on the upper cover 9 and the lower cover. The mounting holes on the flange 13 can realize the installation of the oxygen chamber inside the oxygen generator, as well as the fixed connection between the upper cover 9 and the lower cover.

Claims

1. An oxygen chamber for a portable oxygen generator, comprising an oxygen chamber body (1), wherein a sealed cavity for containing oxygen is formed within the oxygen chamber body, an oxygen inlet and an oxygen outlet are provided on the side wall of the oxygen chamber body, the oxygen inlet is connected to the exhaust port of the molecular sieve (4) of the oxygen generator through an air inlet pipe, and the oxygen outlet is connected to an oxygen delivery device (5) for supplying oxygen through an air outlet pipe, characterized in that: The sealed cavity is divided into several independent gas storage compartments (7) by partition ribs (6). Each gas storage compartment has an air inlet on one side wall and an air outlet on the other side wall. The oxygen entering from the oxygen inlet on the side wall of the oxygen chamber flows through the air inlet and outlet of each gas storage compartment in sequence and is finally discharged from the oxygen outlet on the side wall of the oxygen chamber.

2. The oxygen chamber for a portable oxygen concentrator according to claim 1, characterized in that: The sealed cavity contains several ribs arranged in a crisscross pattern, and each gas storage cell is arranged in a grid-like structure along the horizontal and vertical directions.

3. The oxygen chamber for a portable oxygen concentrator according to claim 1 or 2, characterized in that: The air inlet and outlet on the side wall of the gas storage cell are openings located on two different side walls of the gas storage cell. The openings on the side wall shared by adjacent gas storage cells along the oxygen flow direction serve as both the outlet of the preceding gas storage cell and the inlet of the following gas storage cell.

4. The oxygen chamber for a portable oxygen concentrator according to claim 3, characterized in that: The gas storage cells have inlets and outlets on their parallel, opposite sidewalls for airflow to flow forward in the same direction. The gas storage cells also have inlets and outlets on their intersecting, adjacent sidewalls for airflow to be diverted and flow forward. Oxygen flows through each gas storage cell along a tortuous path.

5. The oxygen chamber for a portable oxygen concentrator according to claim 1 or 2, characterized in that: The oxygen chamber body forms a flat structure that matches the shape of the space inside the oxygen generator that accommodates the oxygen chamber. Inside, a flat sealed cavity with the same shape as the oxygen chamber body is formed. Several partition ribs divide the internal space of the sealed cavity into several gas storage compartments of the same size.

6. The oxygen chamber for a portable oxygen concentrator according to claim 1 or 2, characterized in that: The adjacent inner walls of the gas storage compartment are connected by rounded corners (8).

7. The oxygen chamber for a portable oxygen concentrator according to claim 1, characterized in that: The oxygen chamber body includes an upper cover (9) and a lower cover. Both the upper and lower covers have an opening groove structure with one side opening. A partition rib is integrally formed within the opening groove structure. The partition rib divides the opening groove structure of the upper and lower covers into several grid grooves with one side opening. The side walls of the upper and lower covers are provided with oxygen inlet and oxygen outlet openings facing each other. The side walls of the partition ribs in the upper and lower covers facing the opening direction of the opening groove structure are provided with several buffer notches (10). The openings of the upper and lower covers are directly opposite each other. The upper and lower covers are sealed together and fixedly connected to form an integral structure. The opening slots of the upper and lower covers are spliced ​​together to form a sealed cavity. The oxygen inlet and outlet notches on the side walls of the upper and lower covers are spliced ​​together to form oxygen inlets and outlets, respectively. The ribs inside the upper and lower covers are sealed together so that each grid groove inside the upper and lower covers is spliced ​​together to form an air storage cell. The buffer notches on the ribs inside the upper and lower covers are spliced ​​together to form the air inlet and outlet of each air storage cell.

8. The oxygen chamber for a portable oxygen concentrator according to claim 7, characterized in that: The outer walls of the upper and lower covers are also provided with semi-annular cylindrical oxygen inlet grooves (11) and oxygen outlet grooves (12) facing each other. The oxygen inlet grooves and oxygen outlet grooves are respectively connected to the oxygen inlet gaps and oxygen outlet gaps on the side walls of the upper and lower covers. The oxygen inlet grooves on the upper and lower covers are sealed together to form an outwardly protruding oxygen inlet connector (2) that communicates with the oxygen inlet. The oxygen outlet grooves on the upper and lower covers are sealed together to form an outwardly protruding oxygen outlet connector (3) that communicates with the oxygen outlet. The air inlet pipe and air outlet pipe are sealed and can be quickly disassembled and are fitted onto the oxygen inlet connector and oxygen outlet connector.

9. The oxygen chamber for a portable oxygen concentrator according to claim 7, characterized in that: The upper cover and the lower cover are sealed together by hot-melt welding; or, the side walls and the end faces of the partition ribs inside the upper cover and the lower cover are provided with opposing sealing grooves, and sealing rings are tightly embedded in the sealing grooves, and the upper cover and the lower cover are fixedly connected by buckles or connectors.

10. The oxygen chamber for a portable oxygen concentrator according to claim 1 or 7, characterized in that: The outer wall of the oxygen chamber body is also provided with a flange (13), and the flange is provided with mounting holes for fixing the oxygen chamber body to the oxygen generator.

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