Continuous gas distribution valve suitable for portable oxygen generator
By designing a continuous air distribution valve suitable for portable oxygen generators, the rotating circular or hollow valve core controlled by the motor is solved, and the energy consumption and heating problems of solenoid valves during the air circuit switching process is achieved more efficiently Energy management and heat dissipation are reduced, suitable for portable oxygen generators and low energy supply scenarios.
Patent Information
- Application Number
- CN202420763433.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-04-15
AI Technical Summary
During the air circuit switching process of existing oxygen generators and ventilators, the solenoid valves need to continuously consume energy, resulting in large energy consumption and heat generation, which affects the battery life and user experience of portable equipment.
A continuous air distribution valve suitable for portable oxygen generators is designed, consisting of an outer frame and a rotating valve core. The rotating circular or hollow valve core is controlled by a motor, and the air circuit is controlled by the design of projections and air ports. With an on-off ratio, multiple air distribution valves can be stacked and arranged on the same motor to operate simultaneously, reducing energy consumption and heating.
It reduces the energy consumption and heat dissipation needs of the equipment, improves the battery life and user experience of the portable oxygen generator, and is suitable for small portable oxygen generators and low-energy fluid pipeline control scenarios.
Smart Images
Figure CN222163645U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of valves, in particular to a continuous gas distribution valve suitable for a portable oxygen concentrator. Background Art
[0002] With the advent of an aging society, more and more people need oxygen concentrators and ventilators to help them breathe. The gas circuit shearing required by existing oxygen concentrators and ventilators is completed by controlling solenoid valves, and a small number of high-end large equipment use proportional valves.
[0003] The gas circuit control method commonly used in oxygen concentrators and ventilators is achieved through solenoid valves. When solenoid valves are used in periodic gas circuit switching processes such as oxygen concentrators and ventilators, the opening and closing actions need to be maintained. At this stage, the energy consumption and heat generation are very large. For large equipment with good ventilation that can be connected to the mains, this shortcoming can be ignored, but for portable oxygen concentrators and ventilators that need to be powered by mobile power supplies, this shortcoming cannot be ignored. Energy consumption and heat dissipation both restrict the battery life and user experience of portable oxygen concentrators and ventilators.
[0004] In the process of implementing this application, it was found that the technology has the following problems: the existing oxygen concentrator gas distribution mechanism usually uses solenoid valves to achieve gas circuit control. During the gas distribution gas circuit switching process, the solenoid valves need to maintain a continuous energy-consuming working state, resulting in large energy consumption and heat generation, affecting the battery life and user experience of the oxygen concentrator ventilator. Utility Model Content
[0005] The purpose of the present application is to solve the above-mentioned problems of high energy consumption and heat generation, and to provide a continuous gas distribution valve suitable for a portable oxygen concentrator.
[0006] The technical solution adopted in the present application is as follows: a continuous gas distribution valve suitable for a portable oxygen concentrator, comprising an outer frame (1) and a valve core (2), wherein the outer frame (1) is externally connected to two or more gas ports (3), and the valve core (2) is a rotary valve, the rotation of which is controlled by a motor.
[0007] Furthermore, the valve core (2) is annular and is provided with two symmetrical protrusions. The center of the valve core (2) is fixed on the rotating shaft (4) of the motor, and the protrusions are rotatably sealed with the inner wall of the outer frame (1).
[0008] Furthermore, the area of the protrusion can be selectively designed, and the on-off ratio of the gas path in one cycle can be controlled by adjusting the area of the protrusion.
[0009] Furthermore, a plurality of gas distribution valves can be stacked and arranged on the rotating shaft (4) of the same motor to operate synchronously.
[0010] Furthermore, under the same cycle or common multiple cycle conditions, the stacked gas distribution valves can achieve a synchronous control effect through the ratio of protrusions and blanks and the position and number of gas ports (3).
[0011] Furthermore, the valve core (2) can be configured to be hollow, with an air passage running through the valve core (2). The air passage is divided into two paths that bypass the rotating shaft (4) of the motor and then merge together. The inlet and outlet air passages can be symmetrically arranged at 180 degrees, or can be arranged at any angle according to usage requirements.
[0012] The beneficial effects of the present application are as follows: the present utility model has the advantages of low energy consumption and low heat generation, and is very suitable for small portable oxygen concentrators, and can also be used in various low-energy fluid pipeline control scenarios. The present utility model solves the power consumption in the holding state that the solenoid valve cannot overcome by combining with the motor. The efficiency of the motor is higher than that of the reciprocating electromagnet, which not only reduces the power consumption of achieving the function, but also greatly reduces the energy consumption of components and reduces the heat dissipation requirements of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model using a circular ring-shaped valve core and four air ports on the outer frame;
[0014] Figure 2 is a schematic diagram of the cross-sectional structure of the outer frame;
[0015] Figure 3 It is a schematic diagram of the cross-sectional structure of a circular ring-shaped valve core;
[0016] Figure 4 This is a schematic diagram of the cross-sectional structure of the utility model using a circular ring-shaped valve core and two air ports on the outer frame;
[0017] Figure 5 for Figure 1 Figure 4 The overall structure diagram when used in the portable oxygen concentrator A tower oxygen generator;
[0018] Figure 6 for Figure 1 Figure 4 The overall structure diagram when used in portable oxygen concentrator B tower oxygen production;
[0019] Figure 7 This is a schematic diagram of the cross-sectional structure of the hollow valve core used in the utility model;
[0020] Figure 8 It is a schematic diagram of the cross-sectional structure of a hollow valve core;
[0021] Fig. 9 It is a schematic diagram of the vertical cross-section structure of a hollow valve core.
[0022] Markings in the figure: 1-outer frame, 2-valve core, 3-air port, 4-rotating shaft. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0024] like Figure 1-4 As shown, the utility model is composed of an outer frame (1) and a valve core (2), wherein the outer frame (1) is externally connected to two or more air ports (3), and the valve core (2) is a rotary valve, which is controlled to rotate by a motor. The valve core (2) is in the shape of a ring and is provided with two symmetrical protrusions. The middle of the valve core (2) is fixed on the rotating shaft (4) of the motor, and the protrusion is rotatably sealed with the inner wall of the outer frame (1). The area of the protrusion can be selectively designed, and the on-off ratio of the air path within a cycle can be controlled by adjusting the area of the protrusion. Multiple air distribution valves can be stacked and arranged on the rotating shaft (4) of the same motor for synchronous operation. Under the conditions of the same cycle or a common multiple of the cycle, the stacked air distribution valves can achieve a synchronous control effect by the proportion of the protrusions and the blanks and the position and number of the air ports (3).
[0025] like Figure 5 As shown, this is the overall structure diagram of the utility model when applied to the portable oxygen generator A tower oxygen production,
[0026] (1) Valve A is in the position shown in the figure. At this time, the air is connected to Tower A, and the nitrogen port is connected to Tower B.
[0027] (2) Valve B connects Tower A to the oxygen storage tank and Tower B to the flushing oxygen tank.
[0028] (3) Valve C connects the oxygen storage tank and the flushing oxygen tank. Since the flushing oxygen tank is small in size,
[0029] Part of the oxygen is input from the oxygen storage tank to ensure a certain pressure. The structure of valve C can
[0030] Select the duty cycle of the valve core according to the design requirements.
[0031] (4) Valve D: During the nitrogen exhaust process, when the oxygen production is finished, valve A is switched to allow the molecular sieve tower to enter the nitrogen exhaust process.
[0032] In the nitrogen discharge process, there are two steps. First, when there is no backwash oxygen entering
[0033] In this case, valve A connects the molecular sieve and the nitrogen outlet. After a certain period of time (usually one second)
[0034] When valve D is just running to the point of opening, flush the oxygen chamber with high concentration oxygen.
[0035] Molecular sieve tower, so valve D can be adjusted according to the time taken in a complete cycle.
[0036] Ratio, set the duty cycle of the valve core.
[0037] like Figure 6 As shown, it is the overall structure diagram of the utility model when applied to oxygen production in the B tower of a portable oxygen concentrator, and the principle is the same as above.
[0038] like Figure 7-9 As shown, the valve core (2) can also be set to be hollow, and the airway runs through the valve core (2). The airway is divided into two paths and bypasses the rotating shaft (4) of the motor and then merges. The inlet and outlet airways can be set symmetrically at 180 degrees, or can be set at any angle according to the needs of use.
[0039] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A continuous gas distribution valve suitable for a portable oxygen concentrator, characterized in that: The invention is composed of an outer frame (1) and a valve core (2). The outer frame (1) is externally connected to two or more air ports (3). The valve core (2) is a rotary valve, which is controlled to rotate by a motor. The valve core (2) is annular and has two symmetrical protrusions. The middle of the valve core (2) is fixed on the rotating shaft (4) of the motor. The protrusions are rotatably sealed with the inner wall of the outer frame (1).
2. A continuous gas distribution valve suitable for a portable oxygen concentrator according to claim 1, characterized in that: The valve core (2) is hollow, and an air passage runs through the valve core (2). The air passage is divided into two paths, bypasses the rotating shaft (4) of the motor, and then merges together.