Gas circuit structure of portable oxygen generator

Abstract

The utility model discloses a gas circuit structure of a portable oxygen generator, which comprises an oxygen storage tank for storing oxygen; a first end of the valve body is communicated with the oxygen storage tank; the electromagnetic valve is connected with the valve body and used for controlling opening and closing of the valve body; the first end of the oxygen outlet nozzle is communicated with the second end of the valve body, and the second end of the oxygen outlet nozzle is used for providing oxygen for a user; the respiration sensor is communicated with the third end of the oxygen outlet nozzle, and the respiration sensor and the electromagnetic valve are both electrically connected with a control system of the oxygen generator. The portable oxygen generator solves the problem that the existing portable oxygen generator adopts a domestic sensor and is poor in sensitivity.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen concentrators, in particular to an air path structure of a portable oxygen concentrator. Background Art

[0002] With the continuous development of science and technology, it is slowly being integrated into people's lives, leading to innovations in the field of healthcare. The emergence of portable oxygen concentrators has provided unprecedented freedom and convenience for outdoor mountaineers and patients with long-term oxygen therapy. This portable small oxygen concentrator is becoming a key tool in people's lives.

[0003] Traditional home oxygen generators rely on large oxygen generators ranging from 3L to 10L, which means that users can only use them in a small area. However, with the advancement of technology, the birth of portable oxygen generators has completely changed this situation. Portable oxygen generators are small and light, easy to carry, allowing users to move and travel in a wider range within a certain period of time, significantly improving the quality of life of users. Sensors are very critical components in the structure of portable oxygen generators. Utility Model Content

[0004] The main purpose of the utility model is to provide an air path structure of a portable oxygen concentrator, aiming to solve the problem that the existing portable oxygen concentrator adopts a domestic sensor with poor sensitivity.

[0005] To achieve the above-mentioned purpose, the utility model proposes a gas circuit structure of a portable oxygen concentrator, comprising:

[0006] Oxygen storage tank, used to store oxygen;

[0007] A valve body, a first end of which is connected to the oxygen storage tank;

[0008] A solenoid valve connected to the valve body and used to control the opening and closing of the valve body;

[0009] An oxygen outlet nozzle, wherein a first end of the oxygen outlet nozzle is connected to a second end of the valve body, and a second end of the oxygen outlet nozzle is used to provide oxygen to a user;

[0010] A breathing sensor is communicated with the third end of the oxygen outlet nozzle, and both the breathing sensor and the solenoid valve are electrically connected to the control system of the oxygen concentrator.

[0011] Optionally, an oxygen concentration sensor is connected between the valve body and the oxygen outlet nozzle, and the oxygen concentration sensor is electrically connected to a control system of the oxygen generator.

[0012] Optionally, a one-way valve is connected between the oxygen concentration sensor and the oxygen outlet nozzle.

[0013] Optionally, the solenoid valve is configured as a two-position two-way solenoid valve.

[0014] Optionally, a silicone sealing ring is additionally provided at the connection between the valve body and the solenoid valve.

[0015] Optionally, the oxygen storage tank is connected to the valve body via a first connecting pipe.

[0016] Optionally, the valve body and the oxygen concentration sensor are connected via a second connecting pipe.

[0017] Optionally, the oxygen outlet nozzle and the breathing sensor are connected via a third connecting pipe.

[0018] Optionally, the first connecting pipe, the second connecting pipe and the third connecting pipe are all configured as hose structures.

[0019] The beneficial effects of the utility model are: improving the gas path structure of the existing portable oxygen concentrator, placing the respiratory sensor detection sequence at the oxygen concentrator outlet, the respiratory sensor is directly connected to the user's respiratory channel, can directly sense the user's breathing movements, improve the sensitivity of the oxygen concentrator when in use, and can replace foreign respiratory sensors with domestic respiratory sensors to reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the overall gas circuit structure of the portable oxygen concentrator of the utility model;

[0022] Figure 2 It is an exploded diagram of the overall gas path structure of the portable oxygen concentrator of the utility model;

[0023] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0027] An embodiment of the present invention provides a gas circuit structure of a portable oxygen concentrator, referring to Figure 1 and Figure 2 ,include:

[0028] Oxygen storage tank 1, used for storing oxygen;

[0029] A valve body 2, wherein a first end of the valve body 2 is connected to the oxygen storage tank 1;

[0030] A solenoid valve 3, connected to the valve body 2, and used to control the opening and closing of the valve body 2;

[0031] An oxygen outlet nozzle 4, wherein a first end of the oxygen outlet nozzle 4 is connected to a second end of the valve body 2, and the second end of the oxygen outlet nozzle 4 is used to provide oxygen to a user;

[0032] A breathing sensor 5 is connected to the third end of the oxygen outlet nozzle 4. The breathing sensor 5 and the solenoid valve 3 are both electrically connected to the control system of the oxygen concentrator.

[0033] It should be noted that this embodiment improves the gas path structure of the existing portable oxygen concentrator, and places the detection sequence of the breathing sensor 5 at the outlet of the oxygen concentrator. The breathing sensor 5 is directly connected to the user's breathing channel, and can directly sense the user's breathing action, improve the sensitivity of the oxygen concentrator when in use, and can replace the foreign breathing sensor 5 with the domestic breathing sensor 5 to reduce the cost. Specifically, in this embodiment, the second end of the oxygen outlet nozzle 4 provides oxygen to the user, and can be connected to the user's breathing pipeline. When the user inhales, the breathing sensor 5 connected to the third end of the oxygen outlet nozzle 4 detects the user's inhalation action under the change of airflow, thereby sending a signal to the control system of the oxygen concentrator. The control system sends a signal to the solenoid valve 3, and the solenoid valve 3 controls the valve body 2 to open, and the oxygen in the oxygen storage tank 1 enters the oxygen outlet nozzle 4 through the valve body 2, and is delivered to the user through the oxygen outlet nozzle 4 for the user to inhale oxygen. When the user does not inhale oxygen, the breathing sensor 5 does not sense the change of airflow, and the control system sends a signal to the solenoid valve 3, and the solenoid valve 3 controls the valve body 2 to close to avoid oxygen leakage. It should be noted that this embodiment improves the gas path structure of the existing portable oxygen concentrator, and its control principle and signal acquisition principle are conventional means in the field, which will not be described in detail here. In this embodiment, the breathing sensor 5 is directly connected to the oxygen outlet 4, so that the breathing sensor 5 can quickly sense the airflow change, so the sensitivity requirement of the breathing sensor 5 is reduced, so that the expensive foreign breathing sensor 5 commonly used in the field can be replaced with a lower-cost domestic sensor, thereby improving the cost performance of the product.

[0034] Furthermore, an oxygen concentration sensor 6 is connected between the valve body 2 and the oxygen outlet nozzle 4, and the oxygen concentration sensor 6 is electrically connected to the control system of the oxygen concentrator. In this embodiment, an oxygen concentration sensor 6 is added to detect the oxygen concentration in the gas path structure in real time to ensure the normal oxygen inhalation of the user. If the oxygen concentration does not meet the preset standard, the oxygen concentration sensor 6 can send a relevant alarm signal to the control system to prompt the user.

[0035] Furthermore, a one-way valve 7 is connected between the oxygen concentration sensor 6 and the oxygen outlet nozzle 4. In this embodiment, a one-way valve 7 is further added to the gas path structure to ensure the one-way flow of oxygen and avoid reverse flow or leakage, so as to achieve a safe and effective oxygen production process.

[0036] Furthermore, the solenoid valve 3 is configured as a two-position two-way solenoid valve 3, and a silicone sealing ring is added at the connection between the valve body 2 and the solenoid valve 3. In this embodiment, the valve body 2 is a normally closed structure, and the solenoid valve 3 can be used to control the valve body 2 to open for oxygen delivery. At the same time, a silicone sealing ring is added between the solenoid valve 3 and the valve body 2, which can effectively improve the sealing between the structures and prevent oxygen leakage.

[0037] Furthermore, the oxygen storage tank 1 is connected to the valve body 2 via a first connecting pipe 81, the valve body 2 is connected to the oxygen concentration sensor 6 via a second connecting pipe 82, and the oxygen outlet 4 is connected to the breathing sensor 5 via a third connecting pipe 83. In this embodiment, each structure is connected via a connecting pipe to ensure the normal delivery of oxygen and avoid oxygen leakage. At the same time, each component can be arranged and installed according to the actual structure of the oxygen concentrator. Specifically, the first connecting pipe 81, the second connecting pipe 82 and the third connecting pipe 83 are all configured as hose structures, which facilitates the installation and layout of the connecting pipes.

[0038] The above description is only an optional embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A gas circuit structure of a portable oxygen concentrator, characterized in that: include: Oxygen storage tank, used to store oxygen; A valve body, a first end of which is connected to the oxygen storage tank; A solenoid valve connected to the valve body and used to control the opening and closing of the valve body; An oxygen outlet nozzle, wherein a first end of the oxygen outlet nozzle is connected to a second end of the valve body, and a second end of the oxygen outlet nozzle is used to provide oxygen to a user; A breathing sensor is communicated with the third end of the oxygen outlet nozzle, and both the breathing sensor and the solenoid valve are electrically connected to the control system of the oxygen concentrator.

2. The gas circuit structure of the portable oxygen concentrator according to claim 1, characterized in that: An oxygen concentration sensor is connected between the valve body and the oxygen outlet nozzle, and the oxygen concentration sensor is electrically connected to the control system of the oxygen generator.

3. The gas circuit structure of the portable oxygen concentrator according to claim 2, characterized in that: A one-way valve is connected between the oxygen concentration sensor and the oxygen outlet nozzle.

4. The gas circuit structure of the portable oxygen concentrator according to claim 1, characterized in that: The solenoid valve is configured as a two-position two-way solenoid valve.

5. The gas circuit structure of the portable oxygen concentrator according to claim 4, characterized in that: A silicone sealing ring is additionally provided at the connection between the valve body and the solenoid valve.

6. The gas circuit structure of the portable oxygen concentrator according to claim 2, characterized in that: The oxygen storage tank is connected to the valve body via a first connecting pipe.

7. The gas circuit structure of the portable oxygen concentrator according to claim 6, characterized in that: The valve body and the oxygen concentration sensor are connected via a second connecting pipe.

8. The gas circuit structure of the portable oxygen concentrator according to claim 7, characterized in that: The oxygen outlet nozzle is connected to the breathing sensor via a third connecting pipe.

9. The gas circuit structure of the portable oxygen concentrator according to claim 8, characterized in that: The first connecting pipe, the second connecting pipe and the third connecting pipe are all configured as hose structures.

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