Oxygen generator silencer and oxygen generator

Abstract

The utility model discloses a silencing device of an oxygen generator. The silencing device comprises a flow channel base, an electromagnetic valve and a silencing cup, the runner base is used for being installed at a nitrogen outlet of the oxygen generator and comprises a first installation face and a second installation face which are oppositely arranged, and an air inlet and an air outlet which are communicated with the first installation face and the second installation face, and the air inlet in the second installation face is used for being communicated with the nitrogen outlet of the oxygen generator. The electromagnetic valve is installed on the first installation face and covers the air inlet and the air outlet which are located in the first installation face. The silencing cup is installed on the second installation face, the cup opening covers the air outlet, the silencing cup comprises a silencing cavity and an air hole communicated with the silencing cavity, and silencing cotton is arranged in the silencing cavity. The silencer is simple in structure, manufacturing difficulty and cost are reduced, and production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to an oxygen concentrator silencing device and an oxygen concentrator. Background Art

[0002] As people's demand for health gradually increases, oxygen therapy has become widely used in people's lives. Oxygen can effectively adjust the body's physiological state and correct diseases caused by hypoxia. At the same time, abundant oxygen can also improve people's demand for modern high-quality life comfort. Therefore, oxygen concentrators have gradually entered ordinary families and living environments.

[0003] At present, household oxygen generators generally use a compressor to compress the air and then enter the molecular sieve adsorption tower, adsorb nitrogen at high pressure to produce oxygen, and then desorb the nitrogen at low pressure before discharging it. At the nitrogen outlet, due to the rapid expansion of the volume, a particularly high-decibel noise will be emitted, which will give people an unfavorable experience during the oxygen inhalation process.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The utility model aims to provide an oxygen concentrator silencing device, which is used to reduce the noise generated by the oxygen concentrator during operation and improve the user experience.

[0006] In order to achieve the above-mentioned purpose, a specific embodiment of the utility model provides an oxygen concentrator silencer device, including a flow channel base, a solenoid valve and a silencer cup. The flow channel base is used to be installed at the nitrogen outlet of the oxygen concentrator, including a first mounting surface and a second mounting surface arranged oppositely, and an air inlet and an air outlet connecting the first mounting surface and the second mounting surface, and the air inlet on the second mounting surface is used to connect the nitrogen outlet of the oxygen concentrator. The solenoid valve is installed on the first mounting surface and covers the air inlet and the air outlet located on the first mounting surface. The silencer cup is installed on the second mounting surface and the cup mouth covers the air outlet. The silencer cup includes a silencer cavity and an air vent connecting the silencer cavity, and silencer cotton is arranged in the silencer cavity.

[0007] In one or more embodiments of the present invention, a panel is protruding from the first mounting surface, the panel surrounds the air inlet, and the solenoid valve covers an opening of the panel.

[0008] In one or more embodiments of the present invention, a cover plate connected to the outer wall of the enclosure protrudes from the first mounting surface, the cover plate covers the air outlet, and has a middle port connected to the air outlet, and the solenoid valve covers the middle port.

[0009] In one or more embodiments of the present invention, the diameter of the air inlet is smaller than the diameter of the air outlet.

[0010] In one or more embodiments of the present invention, the muffler cup is fixed to the second mounting surface via threads and / or bolts.

[0011] In one or more embodiments of the present invention, the vent holes are provided at the bottom and / or side wall of the muffler cup.

[0012] In one or more embodiments of the present invention, there are multiple air holes, which are evenly distributed on the muffler cup.

[0013] The utility model also provides an oxygen concentrator, comprising the oxygen concentrator silencing device as described above.

[0014] Compared with the prior art, the silencer device of the utility model is arranged at the outlet of the nitrogen channel of the oxygen concentrator, and is provided with a silencer cup with built-in silencer cotton. The output nitrogen flows through the silencer cup and is discharged, so the overall noise is reduced, which improves the user's experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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 prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 This is a schematic diagram of an oxygen generator silencer device in one embodiment of the utility model;

[0017] Figure 2 It is a schematic diagram of the first mounting surface side of the flow channel base in one embodiment of the utility model;

[0018] Figure 3 It is a schematic diagram of the second mounting surface side of the flow channel base in one embodiment of the utility model;

[0019] Figure 4 This is a schematic diagram of a muffler cup in one embodiment of the utility model;

[0020] Figure 5 This is a schematic diagram of an oxygen concentrator in one embodiment of the utility model;

[0021] Figure 6 This is a partial disassembly diagram of an oxygen concentrator in one embodiment of the utility model.

[0022] Description of main reference numerals:

[0023] 100-oxygen generator silencer, 10-flow channel base, 11-first mounting surface, 12-second mounting surface, 13-air inlet, 14-air outlet, 15-enclosure, 16-cover plate, 161-middle port, 20-silencer cup, 21-silencer cavity, 22-air vent, 30-solenoid valve, 200-oxygen generator, 201-nitrogen outlet. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0025] like Figure 1-4 As shown, an oxygen concentrator silencer 100 in an embodiment of the utility model comprises a flow channel base 10, a silencer cup 20 and a solenoid valve 30. The flow channel base 10 is fixed to the oxygen concentrator body, the silencer cup 20 and the solenoid valve 30 are fixed to the flow channel base 10, the solenoid valve 30 is used to control the on-off and flow rate of nitrogen, and the silencer cup 20 is used to reduce the noise in the oxygen concentrator studio, and has a silencer cavity 21, and an air vent 22 is provided at the bottom, and silencer cotton (not shown) is placed in the silencer cavity 21.

[0026] like Figure 2 and 3 As shown, the main body of the flow channel base 10 is a plate-shaped rectangular body base, which has a first mounting surface 11 and a second mounting surface 12 arranged oppositely, and the solenoid valve 30 and the muffler cup 30 are respectively mounted on the first mounting surface 11 and the second mounting surface 12. An air outlet 14 penetrating the first mounting surface 11 and the second mounting surface 12 is provided on the flow channel base 10, and the air inlet 13 is used to connect to the nitrogen outlet of the oxygen generator, and the cup mouth of the muffler cup 30 covers the air outlet 14. Therefore, the nitrogen flowing out of the oxygen generator flows from the first mounting surface 11 to the second mounting surface 12 through the air inlet 13, passes through the solenoid valve 30, flows to the muffler cup 20 through the air outlet 14, and finally flows out through the air vent 22.

[0027] The oxygen generator silencer 100 in this embodiment fixes the solenoid valve 30 and the silencer cup 20 through the flow channel base 10. The flow channel base 10 is a rectangular body. The first mounting surface 11 and the second mounting surface 12 are two opposite surfaces of the rectangular body. The air inlet 13 and the air outlet 14 pass through the main body surface of the flow channel base 10. It is convenient to open the holes after the flow channel base 10 is formed or to directly form two holes when the flow channel base 10 is manufactured, which reduces the manufacturing difficulty and cost and improves the production efficiency.

[0028] It is easy to imagine that the diameter of the gas outlet 14 is larger than that of the gas inlet 13 , so the flow rate of nitrogen is reduced when flowing out of the gas outlet 14 , which can help reduce noise.

[0029] Preferably, a panel 15 surrounding the air inlet 13 is protruded from the first mounting surface 11, and the panel 15 forms a short-distance channel, whose diameter is larger than the air inlet 13, so that the nitrogen needs to pass through the channel with increased diameter after flowing through the air inlet 13. The solenoid valve 30 is covered by the panel 15 and the channel opening surrounded by the panel 15, so the panel 15 reduces the control area of ​​the solenoid valve 30, and reduces the manufacturing difficulty and cost.

[0030] Furthermore, a cover plate 16 covering the air outlet 14 is protruded from the first mounting surface 11, and a middle port 161 connected to the air outlet 14 is provided on the cover plate 16, and the outer wall of the cover plate 16 is connected to the enclosure 15, and the middle port 161 is provided in the connection area between the cover plate 16 and the enclosure 15, and the corresponding solenoid valve 30 covers the middle port 161 (i.e., the connection area between the cover plate 16 and the enclosure 15). Therefore, after the nitrogen flows out of the oxygen generator, it passes through the air inlet 13 and the channel surrounded by the enclosure 15 in turn, and then enters the solenoid valve 30, and then flows into the muffler cup 20 through the area surrounded by the enclosure 15 and the cover plate 16, the middle port 161 and the air outlet 14.

[0031] By providing the enclosure 15 and the cover plate 16, the area that the solenoid valve 30 needs to cover is reduced, so a smaller solenoid valve can be selected. At the same time, the flow range of nitrogen is limited, which is more conducive to controlling the on-off and flow rate of nitrogen.

[0032] In this embodiment, the muffler cup 20 and the flow channel base 10 adopt a two-stage fixing structure (thread fixing and bolt fixing), and matching threads are respectively provided at the periphery of the air outlet 14 and the cup mouth of the muffler cup 20, and matching screw holes are respectively provided on the muffler cup 20 and the flow channel base 10, and fixing is achieved by fixing bolts. The two-stage fixing structure makes the fixation of the muffler cup 20 and the flow channel base 10 more secure, and the threaded fixing structure can improve the air tightness of the two, prevent nitrogen from flowing out from the joint between the two, and further improve the silencing effect.

[0033] like Figure 4As shown, the air holes 22 are multiple fine holes opened at the bottom of the muffler cup 20. This arrangement allows the muffler cup 20 to have a loading capacity while discharging nitrogen, preventing the muffler cotton from slipping out. Of course, in addition to the bottom opening, holes can also be opened on the side wall of the muffler cup 20 to increase the output channel of nitrogen, reduce the flow rate of nitrogen in a single air hole 22, and further improve the noise reduction effect.

[0034] like Figure 5 and 6 As shown, the utility model also provides an oxygen concentrator 200, which is provided with a nitrogen outlet 201, and the oxygen concentrator silencer 100 is fixed to the oxygen concentrator 200 and connected to the nitrogen outlet 201. The nitrogen output from the nitrogen outlet 201 flows through the flow channel base 10 and then flows out from the silencer cup 20. The silencer cotton in the silencer cup 20 can effectively reduce the noise generated when the nitrogen flows, thereby improving the user experience.

[0035] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0036] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An oxygen concentrator silencing device, characterized in that: include: A flow channel base, used for installation at the nitrogen outlet of the oxygen concentrator, comprising a first mounting surface and a second mounting surface arranged opposite to each other, and an air inlet and an air outlet communicating with the first mounting surface and the second mounting surface, wherein the air inlet on the second mounting surface is used for communicating with the nitrogen outlet of the oxygen concentrator; a solenoid valve, mounted on the first mounting surface and covering the air inlet and the air outlet located on the first mounting surface; as well as A silencer cup is mounted on the second mounting surface and has a cup opening covering the air outlet. The silencer cup includes a silencer cavity and an air vent connected to the silencer cavity. Silencer cotton is arranged in the silencer cavity.

2. The oxygen concentrator silencing device according to claim 1, characterized in that: A surrounding plate protrudes from the first mounting surface, the surrounding plate surrounds the air inlet, and the solenoid valve covers the opening of the surrounding plate.

3. The oxygen concentrator silencing device according to claim 2, characterized in that: The first mounting surface also protrudes with a cover plate connected to the outer wall of the enclosure, the cover plate covers the air outlet, and has a middle port connected to the air outlet, and the solenoid valve covers the middle port.

4. The oxygen concentrator silencing device according to claim 1, characterized in that: The diameter of the air inlet is smaller than the diameter of the air outlet.

5. The oxygen concentrator silencing device according to claim 1, characterized in that: The muffler cup is fixed to the second mounting surface via threads and / or bolts.

6. The oxygen concentrator silencing device according to claim 1, characterized in that: The vent holes are formed on the bottom and / or side wall of the muffler cup.

7. The oxygen concentrator silencing device according to claim 6, characterized in that: There are multiple vent holes, which are evenly distributed on the muffler cup.

8. An oxygen concentrator, characterized in that: It comprises the oxygen concentrator silencer device as described in any one of claims 1 to 7.

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