CN113012671A

CN113012671A - Silencer and oxygenerator

Info

Publication number: CN113012671A
Application number: CN201911324429.5A
Authority: CN
Inventors: 王美平; 祝传军
Original assignee: Omron Healthcare China Co ltd
Current assignee: Omron Healthcare China Co ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2021-06-22

Abstract

The embodiment of the application provides a muffler and oxygenerator, the muffler includes: the oxygen generator comprises a first silencing cavity, a second silencing cavity and a first air inlet, wherein the first air inlet is arranged at one end of the first silencing cavity, the second air inlet is arranged at the other end of the first silencing cavity, a check valve is arranged inside the first silencing cavity and arranged between the first air inlet and the second air inlet, the check valve is provided with an exhaust cavity, a diaphragm covering the inlet of the exhaust cavity and a driving part driving the diaphragm to move, when the oxygen generator is in a working state, gas entering from the first air inlet applies force to the driving part, the driving part drives the diaphragm to be opened, and gas entering from the second air inlet is exhausted through the exhaust cavity and enters the first silencing cavity; when the oxygen generator is in a non-working state, the gas entering from the first gas inlet stops entering, the diaphragm is closed, and the gas entering from the second gas inlet stops entering the exhaust cavity. The moisture in the air can not enter the oxygen generator, so the service life of the oxygen generator is prolonged.

Description

Silencer and oxygenerator

Technical Field

The embodiment of the application relates to the technical field of gas supply, in particular to a silencer with a check valve and an oxygen generator with the silencer, wherein the silencer is applied to the oxygen generator.

Background

The existing oxygenerator applied to the market is basically characterized in that an exhaust part is directly connected with the atmosphere, and when the oxygenerator is placed but not used, moisture in the atmosphere can directly invade into a molecular sieve tower of the oxygenerator from the exhaust part, so that the molecular sieve absorbs moisture and is degraded, the failure rate of the oxygenerator is increased, and the service life of the oxygenerator is influenced.

It should be noted that the above background description is only for the convenience of clear and complete description of the technical solutions of the present application and for the understanding of those skilled in the art. Such solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the present application.

Disclosure of Invention

In order to solve at least one of the above problems or other similar problems, embodiments of the present application provide a silencer and an oxygen generator to prolong the service life of the oxygen generator.

According to a first aspect of the embodiments of the present application, there is provided a silencer applied to an oxygen generator, the silencer including:

a first silencing cavity, wherein one end of the first silencing cavity is provided with a first air inlet, the other end of the first silencing cavity is provided with a second air inlet, a check valve is arranged in the first silencing cavity and is arranged between the first air inlet and the second air inlet,

when the oxygen generator is in a working state, gas entering from the first gas inlet exerts force on the driving part, the driving part drives the diaphragm to be opened, and gas entering from the second gas inlet is discharged from the gas exhaust cavity and enters the first silencing cavity; when the oxygen generator is in a non-working state, the gas entering from the first gas inlet stops entering, the diaphragm is closed, and the gas entering from the second gas inlet stops entering the exhaust cavity.

In some embodiments, the first gas inlet is in communication with an oxygen outlet of the oxygen generator, and the second gas inlet is in communication with a nitrogen outlet of the oxygen generator.

In some embodiments, the driving component includes a force application component and an elastic component disposed around the force application component, and when the oxygen generator is in a working state, the force application component receives an acting force of gas entering from the first gas inlet, and drives the elastic component to move toward a direction close to the membrane, so that the membrane is opened; when the oxygen generator is in a non-working state, the force application component drives the diaphragm to close under the action of the resilience force of the elastic component.

In some embodiments, a plurality of vent holes are provided on a peripheral wall of the vent chamber, the plurality of vent holes being equally spaced around the peripheral wall of the vent chamber.

In some embodiments, an angle between a gas discharge direction of the gas discharge hole and the peripheral wall is less than 90 degrees.

In some embodiments, the muffler further comprises: a second sound-deadening chamber, at least a portion of the second sound-deadening chamber communicating with the first sound-deadening chamber.

In some embodiments, the volume of the second sound-deadening chamber is greater than the volume of the first sound-deadening chamber.

In some embodiments, the interior of the second sound-deadening chamber is provided with a micro-porous structure that silences gas entering the second sound-deadening chamber.

In some embodiments, a flow guide structure is disposed inside the second sound-deadening chamber, and the flow guide structure guides a flow direction of the gas entering the second sound-deadening chamber.

In some embodiments, a microporous sound attenuating material is placed within the first sound attenuating chamber and/or the second sound attenuating chamber.

According to a second aspect of embodiments of the present application, there is provided an oxygen generator comprising the aforementioned silencer.

One of the beneficial effects of the embodiment of the application lies in: when the oxygen generator acts (the oxygen generator is in a working state), due to the impact action of external gas (such as oxygen entering from the first air inlet), the force application part in the driving part (such as the air cylinder) is stressed to drive the elastic part (such as the piston compression spring) to move towards the direction close to the diaphragm, so that the diaphragm of the check valve is opened, when the oxygen generator is shut down (the oxygen generator is in a non-working state), the force application part in the driving part is not stressed any more, the elastic part rebounds to a free state, the force application part drives the diaphragm of the check valve to be closed under the action of the rebounding force of the elastic part, and the whole air circuit of an exhaust system of the oxygen generator is in a closed state. Therefore, when the user does not use the oxygen generator, the exhaust gas circuit of the oxygen generator is in a closed state, no moisture enters the exhaust system, and therefore the molecular sieve of the oxygen generator cannot be affected with damp and deteriorated, the service life of the oxygen generator is prolonged, and meanwhile, the structure can also reduce exhaust noise.

Specific embodiments of the present application are disclosed in detail with reference to the following description and drawings, indicating the manner in which the principles of the application may be employed. It should be understood that the embodiments of the present application are not so limited in scope. The embodiments of the application include many variations, modifications and equivalents within the spirit and scope of the appended claims.

Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments, in combination with or instead of the features of the other embodiments.

It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps or components.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

In the drawings:

FIG. 1 is a schematic view of a muffler according to an embodiment of the present application;

FIG. 2 is an exploded view of a muffler according to an embodiment of the present application;

FIG. 3 is a cross-sectional view of a muffler according to an embodiment of the present application;

FIG. 4 is another cross-sectional view of a muffler of an embodiment of the present application;

FIG. 5 is a schematic view of a check valve in a muffler according to an embodiment of the present application;

FIG. 6 is a schematic view showing an internal structure of the check valve shown in FIG. 5;

fig. 7 is a schematic view of an angle between a gas discharge direction of the gas discharge hole and the peripheral wall;

FIG. 8 is a schematic view of an oxygen generator according to an embodiment of the present application;

FIG. 9 is another schematic view of an oxygen generator according to an embodiment of the present application;

fig. 10 is yet another schematic view of an oxygen generator according to an embodiment of the present application.

Detailed Description

The foregoing and other features of the present application will become apparent from the following description, taken in conjunction with the accompanying drawings. In the description and drawings, particular embodiments of the application are disclosed in detail as being indicative of some of the embodiments in which the principles of the application may be employed, it being understood that the application is not limited to the described embodiments, but, on the contrary, is intended to cover all modifications, variations, and equivalents falling within the scope of the appended claims.

In the embodiments of the present application, the terms "first", "second", and the like are used for distinguishing different elements by reference, but do not denote a spatial arrangement, a temporal order, or the like of the elements, and the elements should not be limited by the terms. The term "and/or" includes any and all combinations of one or more of the associated listed terms.

In the embodiments of the present application, the singular forms "a", "an", and the like include the plural forms and are to be construed broadly as "a" or "an" and not limited to the meaning of "a" or "an"; furthermore, the term "comprising" should be understood to include both the singular and the plural, unless the context clearly dictates otherwise. Furthermore, the term "based on" should be understood as "based at least in part on" and the term "based on" should be understood as "based at least in part on" unless the context clearly dictates otherwise.

Various embodiments of the present application will be described below with reference to the drawings.

Example 1

The embodiment of the application provides a silencer. The silencer can be used to generate a prescribed type of gas and provide the gas to a user's gas supply, which can be, for example, an oxygen generator, an atomizer, or the like. In the embodiments of the present application, an oxygen generator is taken as an example for description.

Fig. 1 is a schematic view of a muffler according to an embodiment of the present application, fig. 2 is an exploded view of the muffler according to the embodiment of the present application, fig. 3 is a sectional view of the muffler according to the embodiment of the present application, and fig. 4 is another sectional view of the muffler according to the embodiment of the present application.

As shown in fig. 1 to 4, a muffler of an embodiment of the present application includes: the silencer comprises a first silencing cavity 11, wherein a first air inlet 12 is formed in one end of the first silencing cavity 11, a second air inlet 13 is formed in the other end of the first silencing cavity 11, a check valve 14 is arranged inside the first silencing cavity 11, and the check valve 14 is arranged between the first air inlet 12 and the second air inlet 13.

Fig. 5 is a schematic view of a check valve, fig. 6 is a schematic view of an internal structure of the check valve shown in fig. 5, and as shown in fig. 3 to 6, the check valve 14 has a discharge chamber 141, a diaphragm 142 covering an inlet of the discharge chamber 141, and a driving member 143 driving the diaphragm 142 to move. When the oxygen generator is in an operating state, the gas entering from the first gas inlet 12 applies force to the driving part 143, the driving part 143 drives the diaphragm 142 to open, and as shown in fig. 3, the gas entering from the second gas inlet 13 is discharged through the exhaust cavity 141 of the check valve 14 and enters the first muffling cavity 11; when the oxygenerator is in a non-working state, the gas entering from the first gas inlet 12 stops entering, the diaphragm 142 is closed, as shown in fig. 4, the gas entering from the second gas inlet 13 stops entering the first silencing cavity 11 due to the blocking of the diaphragm 142, that is, the gas cannot enter the first silencing cavity 11 through the check valve 14.

From this, the user is when not using the oxygenerator, and the exhaust gas circuit of oxygenerator is in closed state, and the gas in the amortization intracavity with atmosphere intercommunication also can not get into exhaust system, so can not have moisture to get into exhaust system, consequently, the molecular sieve of oxygenerator can not wet and take place the degradation, has prolonged the life of oxygenerator, has reduced the exhaust noise.

In some embodiments, as shown in fig. 6, the driving member 143 (e.g., a cylinder) may include a force application member 1431 and an elastic member 1432 (e.g., a piston compression spring) disposed around the force application member 1431. When the oxygen generator is in an operating state, the force application part 1431 receives the acting force of the gas entering from the first gas inlet 12, and drives the elastic part 1432 to compress in the direction close to the membrane 142, and the membrane 142 is opened, as shown in fig. 3; when the oxygen generator is in a non-operating state, the force application member 1431 drives the diaphragm 142 to close under the resilient force of the elastic member 1432, as shown in fig. 4.

In some embodiments, the silencer can function as an exhaust silencer of an oxygen generator, the first inlet 12 can be in communication with an oxygen outlet of the oxygen generator, and the second inlet 13 can be in communication with a nitrogen outlet of the oxygen generator. From this, when having oxygen output in the whole system of oxygenerator, driver part 143 is because receiving the impact of oxygen, and elastomeric element 1432 is in compression state, and check valve 14's diaphragm 142 is opened, and when the oxygenerator shut down, owing to receive elastomeric element 1432 self resilience effect, check valve 14's diaphragm 142 returns to the state of closing, simultaneously, because nitrogen gas gets into the cavity of check valve 14's exhaust chamber 141 earlier then through the first amortization chamber 11 of exhaust muffler again, has played the effect of the volume amortization of expanding nitrogen gas.

In some embodiments, as shown in fig. 5, a plurality of exhaust holes 1411 are provided on the circumferential wall of the exhaust chamber 141, the plurality of exhaust holes 1411 being equally spaced around the circumferential wall of the exhaust chamber 141. Thus, when the diaphragm 142 is in the open state, the gas (nitrogen gas as described above) entering from the second gas inlet 13 can be discharged via the gas discharge hole 1411 to enter the first sound-deadening chamber 11.

In some embodiments, the gas discharge direction of the gas discharge holes 1411 forms an angle of less than 90 degrees with the peripheral wall. In the embodiment of the present application, the angle between the gas discharging direction of the gas discharging hole 1411 and the peripheral wall is the angle between the gas discharging direction of the gas discharging hole 1411 and the tangent plane of the gas discharging hole 1411 on the peripheral wall.

Taking the peripheral wall as a cylinder as an example, fig. 7 shows an included angle θ between the gas discharging direction a of the gas discharging hole 1411 and a tangent plane B of the gas discharging hole 1411 on the peripheral wall, and as shown in fig. 7, the included angle θ is smaller than 90 degrees, for example, 45 degrees.

In some embodiments, as shown in fig. 2-4, the muffler may further include a second sound-deadening chamber 15, and, as shown in fig. 2, at least a portion of the second sound-deadening chamber 15 communicates with the first sound-deadening chamber 11. Thus, the gas entering from the second inlet port 13 enters the first muffling chamber 11 through the exhaust chamber 141 of the check valve 14, is muffled, and then enters the second muffling chamber 15, and is further muffled through the second muffling chamber 15.

The present application does not limit the manner in which the second sound-deadening chamber 15 muffles sound. In one embodiment, the volume of the second sound-deadening chamber 15 is larger than the volume of the first sound-deadening chamber 11, whereby the volume-deadening effect can be achieved by enlarging the volume of the sound-deadening gas. In an embodiment, a microporous structure is disposed in the second muffling chamber 15, and the microporous structure muffles the gas entering the second muffling chamber 15, and the application does not limit the specific implementation manner of the microporous structure, and reference may be made to the related art. In another embodiment, a flow guiding structure is disposed in the second sound-deadening chamber 15, and the flow guiding structure guides the flow direction of the gas entering the second sound-deadening chamber 15, so as to perform a sound-deadening function.

In the embodiment of the present invention, as shown in fig. 1 and 2, the first sound-deadening chamber 11 and the second sound-deadening chamber 15 may be formed by an integrally formed housing or a separately formed housing, and the form of the first sound-deadening chamber 11 and the second sound-deadening chamber 15 is not limited in the present invention.

In the embodiment of the present invention, as shown in fig. 5, the exhaust chamber 141 may be formed by a plurality of cylindrical housings having different diameters, and has a gas inlet. When the oxygen generator does not work, the diaphragm 142 covers the gas inlet, and when the oxygen generator works, the force application part 1431 is impacted by the gas from the first gas inlet 12, and drives the elastic part 1432 to compress towards the direction close to the diaphragm 142, so that the diaphragm 142 is opened and does not cover the gas inlet any more. Thus, the gas from the second gas inlet 13 can enter the exhaust chamber 141 from the above-described gas inlet, and is discharged through the exhaust holes 1411 formed in the peripheral wall of the exhaust chamber 141 to enter the first muffler 11. The present application is not limited to the formation of the exhaust chamber 141.

In the embodiment of the present application, as shown in fig. 6, a portion of the driving part 143 is located inside the exhaust chamber 141, and another portion of the driving part 143 is located on a side (lower side shown in fig. 2) of the exhaust chamber 141 close to the first gas outlet 12, so that the gas from the second gas outlet 12 can apply an external force to the driving part 143, thereby driving the diaphragm 142 to open. The present application is not limited to the implementation of the driving part 143.

The above description has been made only on the structure relating to the muffler of the embodiment of the present application, and the present application is not limited thereto. The silencer of the embodiments of the present application may further include other components or have other structures, and with regard to the details of these components or structures, reference may be made to the related art.

According to the embodiment, when the oxygen generator acts (the oxygen generator is in a working state), due to the fact that the driving part is impacted by external gas (such as oxygen entering from the first air inlet), the elastic part in the driving part is stressed, the diaphragm of the check valve is opened, when the oxygen generator is shut down (the oxygen generator is in a non-working state), the elastic part in the driving part is not stressed any more, and therefore the elastic part rebounds to an initial state, the diaphragm of the check valve is closed, and the whole air circuit of the exhaust system of the oxygen generator is in a closed state. Therefore, when a user does not use the oxygen generator, the exhaust gas circuit of the oxygen generator is in a closed state, and no moisture enters the exhaust system, so that the molecular sieve of the oxygen generator is not affected with damp and is not deteriorated, the service life of the oxygen generator is prolonged, and the exhaust noise is reduced.

Example 2

The embodiment of the application provides an oxygenerator.

Fig. 8 is a schematic view of an oxygen generator according to an embodiment of the present application, fig. 9 is another schematic view of an oxygen generator according to an embodiment of the present application, and fig. 10 is still another schematic view of an oxygen generator according to an embodiment of the present application.

In the embodiment of the present application, as shown in fig. 8 and 9, the oxygen generator includes: the oxygen supplying apparatus includes a cabinet case 100, an oxygen outlet 200, a pressure regulating valve 300, a heat sink 400, an integrated adsorption tower 500, a bacteria filter 600, and an oxygen supplying system 700. In addition, as shown in fig. 10, the oxygen generator further includes: an oxygen tank pressure sensor 1001, an air inlet 1002, an air inlet silencer 1003, a compressor 1004, an oxygen concentration flow sensor 1005, a control processing system 1006 and an exhaust silencer 1007.

In the embodiment of the present application, the pressure regulating valve 300, the heat sink 400, the integrated adsorption tower 500, and the bacteria filter 600 may be included as the components of the oxygen supply system 700. In addition to the above components, the oxygen supply system 700 may further include an intake port 1002, a compressor 1004, an intake silencer 1003, an oxygen concentration flow rate sensor 1005, an exhaust silencer 1007, and an oxygen tank pressure sensor 1001 shown in fig. 10. The oxygen supply system 700 may further include components or parts, not shown, such as: an air inlet filter, a four-position two-way electromagnetic valve, an exhaust one-way valve and the like. Regarding the functions of the above-described respective constituent elements, reference may be made to the related art, and the description thereof is omitted here.

In this embodiment, the control processing system 1006 is used to control the operation of the components of the oxygen generator.

In the embodiment of the present application, the muffler of embodiment 1 of the present application can function as the exhaust muffler 1007 of the oxygen generator, and since the muffler has been described in detail in embodiment 1, the contents thereof are incorporated herein, and will not be described herein again.

The oxygen generator of this application embodiment has adopted the muffler of embodiment 1 as its exhaust muffler, and the user is when not using the oxygen generator, and the exhaust gas circuit of oxygen generator is in closed state, can not have moisture to get into exhaust system, consequently, the molecular sieve of oxygen generator can not wet and take place the degradation, has prolonged the life of oxygen generator, and simultaneously, this structure can reduce the exhaust noise.

The present application has been described in conjunction with specific embodiments, but it should be understood by those skilled in the art that these descriptions are intended to be illustrative, and not limiting. Various modifications and adaptations of the present application may occur to those skilled in the art based on the teachings herein and are within the scope of the present application.

Claims

1. A silencer applied to an oxygen generator is characterized by comprising:

2. The silencer of claim 1, wherein the first inlet port is in communication with an oxygen outlet of the oxygen generator, and the second inlet port is in communication with a nitrogen outlet of the oxygen generator.

3. The silencer of claim 1, wherein the driving member comprises a force application member and an elastic member surrounding the force application member, and when the oxygen generator is in the working state, the force application member receives the acting force of the gas entering from the first gas inlet, and drives the elastic member to move in the direction close to the membrane, so that the membrane is opened; when the oxygen generator is in a non-working state, the force application component drives the diaphragm to close under the action of the resilience force of the elastic component.

4. A silencer according to any of claims 1 to 3 wherein a plurality of exhaust holes are provided in the peripheral wall of the exhaust chamber, the plurality of exhaust holes being equally spaced around the peripheral wall of the exhaust chamber.

5. The muffler of claim 4, wherein an angle between a gas discharge direction of the gas discharge hole and the circumferential wall is less than 90 degrees.

6. The muffler of claim 1, further comprising:

a second sound-deadening chamber, at least a portion of the second sound-deadening chamber communicating with the first sound-deadening chamber.

7. The muffler of claim 6 wherein the volume of the second chamber is greater than the volume of the first chamber.

8. A silencer according to claim 6, characterized in that the interior of the second silencing chamber is provided with a cellular structure which silences the gas entering the second silencing chamber.

9. The muffler of claim 6, wherein a flow guide structure is provided inside the second sound-deadening chamber, the flow guide structure guiding a flow direction of the gas entering the second sound-deadening chamber.

10. The muffler of any one of claims 6 to 9, wherein a microporous sound attenuating material is placed within the first sound attenuating chamber and/or the second sound attenuating chamber.

11. An oxygen generator, characterized in that it comprises a silencer according to any of claims 1 to 10.