Noise reduction device and atomizer compressor

Abstract

The present invention relates to the technical field of medical equipment, and specifically to a noise reduction device, which includes an air intake mechanism, an air outlet mechanism and a conversion mechanism, wherein the air intake mechanism includes an air intake pipe and a first silencer assembly that are interconnected; the air outlet mechanism includes an air outlet pipe and a second silencer assembly that are interconnected; the conversion mechanism connects the first silencer assembly and the second silencer assembly, and is used to introduce the gas of the first silencer assembly into the second silencer assembly. Among them, the cross-sectional area of ​​the air intake channel composed of the air intake pipe and the first silencer assembly undergoes multiple size changes; the cross-sectional area of ​​the air outlet channel composed of the air outlet pipe and the second silencer assembly undergoes multiple size changes. By applying the principle of small hole silencer, the cross-sectional areas of the air intake channel and the air outlet channel are changed multiple times, thereby realizing multiple changes in the gas flow rate, so as to achieve the purpose of reducing noise. The present invention also provides a nebulizer compressor.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, in particular to a noise reduction device and an atomizer compressor. Background Art

[0002] Compared with the traditional method of taking medicine to treat respiratory diseases such as asthma, medical nebulizers atomize liquid medicine into tiny particles, and the medicine enters the respiratory tract and lungs through inhalation, thereby achieving painless, rapid and effective treatment. At present, the compressor of medical nebulizers generally adopts shaded pole motors. Although the compressor has the advantages of stable overall structural performance, simple structure, long life and low cost, it also has certain defects, that is, it is easy to generate a lot of noise during operation, which affects the user experience and quality evaluation of the nebulizer. Existing noise reduction devices are usually improved by shock absorption and silencing. The silencing sponge is placed between the air inlet and the air inlet connected to the air pump, but the silencing sponge is easy to cause the deposition of dust particles, affecting air circulation and atomization effect, causing pollution, and the silencing effect will also be weakened. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a noise reduction device and an atomizer compressor in view of the above-mentioned defects of the prior art, aiming to solve the problems of high noise and poor user experience of the existing atomizer compressor.

[0004] The technical solution adopted by the present invention to solve the technical problem is: to provide a noise reduction device, comprising:

[0005] An air intake mechanism, comprising an air intake pipe and a first silencer assembly, wherein the air intake pipe is in communication with the first silencer assembly;

[0006] An air outlet mechanism comprises an air outlet pipe and a second silencer assembly, wherein the air outlet pipe is in communication with the second silencer assembly;

[0007] A conversion mechanism, connecting the first silencer assembly and the second silencer assembly, for introducing the gas of the first silencer assembly into the second silencer assembly;

[0008] Among them, the cross-sectional area of ​​the air intake channel composed of the air intake pipe and the first silencer component undergoes multiple size changes; the cross-sectional area of ​​the air outlet channel composed of the air outlet pipe and the second silencer component undergoes multiple size changes.

[0009] Furthermore, the air intake pipe includes an air intake port, a first sealing member and a first air intake hole. A through hole is provided in the first sealing member. Two ends of the through hole are respectively connected to the air intake port and the first air intake hole. The cross-sectional areas of the air intake port, the first air intake hole and the through hole are not equal.

[0010] Furthermore, the first silencer assembly includes a plurality of air intake pipes, the plurality of air intake pipes are connected to each other, and first ventilation grooves are provided at ends of connection points of different air intake pipes.

[0011] Furthermore, an air flow baffle is provided in the middle of the air intake duct connected to the air intake port, and a second ventilation groove is provided on the other side of the air flow baffle relative to the air intake port, and the cross-sectional area of ​​the first ventilation groove and the second ventilation groove is smaller than the cross-sectional area of ​​the air intake duct.

[0012] Furthermore, the air outlet pipe comprises an air outlet, a second sealing member and a first air outlet hole, and the air outlet and the first air outlet hole are interconnected and are both arranged on the second sealing member.

[0013] Furthermore, the second silencer assembly includes a plurality of air outlet pipes, which are interconnected, and a third ventilation groove is provided at the ends of the connection between different air outlet pipes, and the cross-sectional area of ​​the first air outlet hole and the third ventilation groove is smaller than the cross-sectional area of ​​the air outlet pipe.

[0014] Furthermore, the first silencer assembly is connected to the second silencer assembly, the air inlet pipe and the air outlet pipe are respectively arranged at the two ends of the first silencer assembly and the second silencer assembly, the air inlet pipe is provided with a first blocking portion for blocking one end of the air inlet pipe and the air outlet pipe, and the air outlet pipe is provided with a second blocking portion for blocking the other end of the air inlet pipe and the air outlet pipe.

[0015] Furthermore, the conversion mechanism includes a second air inlet hole, an air inlet chamber, a second air outlet hole, an air outlet chamber and a conversion chamber, the second air inlet hole connects the air inlet chamber and the air inlet duct, the second air outlet hole connects the air outlet chamber and the air outlet duct, and the conversion chamber connects the air inlet chamber and the air outlet chamber respectively.

[0016] Furthermore, the conversion chamber includes a cylinder, a third air inlet hole, a third air outlet hole and an air flow guide plate, the third air inlet hole and the third air outlet hole are arranged on the cylinder, the cylinder is used to connect to the compressor, and the air flow guide plate is provided with a first one-way valve covering the third air inlet hole and a second one-way valve covering the third air outlet hole.

[0017] The present invention also provides an atomizer compressor, which comprises a compressor and the aforementioned noise reduction device, wherein the compressor is used to provide gas flow power to the conversion mechanism.

[0018] The beneficial effect of the present invention is that, by applying the small hole silencer principle, the cross-sectional areas of the air inlet channel and the air outlet channel are changed multiple times, thereby realizing multiple changes in the gas flow rate to achieve the purpose of reducing noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The specific implementation of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the noise reduction device provided by the present invention;

[0021] Figure 2 The three-dimensional structure of the air intake pipe provided by the present invention is shown in FIG. Figure 1 ;

[0022] Figure 3 The three-dimensional structure of the air intake pipe provided by the present invention is shown in FIG. Figure 2 ;

[0023] Figure 4 It is a rear perspective view of a partial structure of the noise reduction device provided by the present invention;

[0024] Figure 5 It is a front plan view of a part of the structure of the noise reduction device provided by the present invention;

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the air outlet pipe provided by the present invention;

[0026] Figure 7 It is a partial structural decomposition schematic diagram of the noise reduction device provided by the present invention;

[0027] Figure 8 is an exploded schematic diagram of a conversion chamber provided by the present invention;

[0028] Fig. 9 It is a three-dimensional structural diagram of the atomizer compressor.

[0029] The accompanying drawings are described as follows:

[0030] 10. Noise reduction device;

[0031] 20 Nebulizer compressor;

[0032] 1 air intake mechanism 11 air intake pipe 111 air intake port 112 first sealing member 1121 through hole 1122 first blocking portion 113 first air intake hole 12 first muffler assembly 121 air intake pipe 122 first ventilation groove 123 air flow baffle 1231 second ventilation groove;

[0033] 2 air outlet mechanism 21 air outlet pipe 211 air outlet 212 second sealing member 2121 second blocking portion 213 first air outlet hole 22 second muffler assembly 221 air outlet pipe 222 third ventilation groove;

[0034] 3 conversion mechanism 31 second air inlet 32 ​​air inlet chamber 33 second air outlet 34 air outlet chamber 35 conversion chamber 351 cylinder 352 third air inlet 353 third air outlet 354 air flow guide plate 3541 first one-way valve 3542 second one-way valve;

[0035] 4 compressor 41 drive device 42 piston rod. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. Now, in conjunction with the accompanying drawings, the preferred embodiments of the present invention are described in detail.

[0037] The exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in a variety of different forms and should not be interpreted as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art.

[0038] Embodiment 1

[0039] like Figure 1 As shown, the present invention provides a noise reduction device 10, which includes an air intake mechanism 1, an air outlet mechanism 2 and a conversion mechanism 3. The air intake mechanism 1 includes an air intake pipe 11 and a first silencer assembly 12, and the air intake pipe 11 is connected to the first silencer assembly 12. The air outlet mechanism 2 includes an air outlet pipe 21 and a second silencer assembly 22, and the air outlet pipe 21 is connected to the second silencer assembly 22. The conversion mechanism 3 connects the first silencer assembly 12 and the second silencer assembly 22, and is used to introduce the gas of the first silencer assembly 12 into the second silencer assembly 22. Among them, the cross-sectional area of ​​the air intake channel composed of the air intake pipe 11 and the first silencer assembly 12 is transformed in size multiple times; the cross-sectional area of ​​the air outlet channel composed of the air outlet pipe 21 and the second silencer assembly 22 is transformed in size multiple times. By applying the principle of small hole silencer, the cross-sectional area of ​​the air flow channel is changed multiple times, thereby realizing multiple changes in the gas flow rate, so as to achieve the purpose of reducing noise.

[0040] like Figure 2 and Figure 3 As shown, the air inlet pipe 11 includes an air inlet 111, a first sealing member 112 and a first air inlet hole 113. A through hole 1121 is provided in the first sealing member 112. The two ends of the through hole 1121 are connected to the air inlet 111 and the first air inlet hole 113 respectively. External gas enters from the air inlet 111 and is transmitted through the through hole 1121, and finally enters the first muffler assembly 12 from the first air inlet hole 113. As a preferred embodiment, Figure 1 As shown, a plurality of air inlets 111 may be provided to facilitate the introduction of external air into the through hole 1121 from different directions.

[0041] like Figure 4 and Figure 5As shown, the first muffler assembly 12 includes two air intake pipes 121, which are connected to each other, and a first ventilation groove 122 is provided at the end of the connection between different air intake pipes 121. It can be understood that in order to achieve the purpose of reducing noise, the gas should flow fully between different air intake pipes 121, and the gas flows from one end of an air intake pipe 121 to the other end, and then enters the next air intake pipe 121, and the steps are circulated until the gas enters the conversion mechanism 3. In this embodiment, two parallel air intake pipes 121 are used as an example, and in other embodiments, there may be three or even more air intake pipes 121. Among them, an air flow baffle 123 is provided in the middle of the air intake pipe 121 connected to the air inlet 111, and a second ventilation groove 1231 is provided on the other side of the air flow baffle 123 relative to the air inlet 111. The gas enters the air intake duct 121 from the first air intake hole 113 , flows from one side of the air flow partition plate 123 to the other side through the second air intake groove 1231 , and then enters the next air intake duct 121 through the first air intake groove 122 .

[0042] Specifically, the cross-sectional areas of the air inlet port 111, the first air inlet hole 113 and the through hole 1121 are not equal, and the cross-sectional areas of the first ventilation groove 122 and the second ventilation groove 1231 are smaller than the cross-sectional area of ​​the air intake pipe 121, that is, the gas will experience multiple changes in the size of the air intake channel cross-sectional area in the air intake pipe 11 and the first silencer assembly 12.

[0043] like Figure 6 As shown, the air outlet pipe 21 includes an air outlet 211, a second sealing member 212 and a first air outlet hole 213. The air outlet 211 and the first air outlet hole 213 are connected to each other and are both arranged on the second sealing member 212. The gas in the second muffler assembly 22 flows from the first air outlet hole 213 to the air outlet 211. As a preferred embodiment, Figure 1 As shown, a plurality of gas outlets 211 may be provided to facilitate the gas to be discharged from different directions.

[0044] like Figure 4 and Figure 5As shown, the second silencer assembly 22 includes two outlet pipes 221, which are connected to each other, and a third ventilation groove 222 is provided at the end of the connection between different outlet pipes 221. The cross-sectional area of ​​the first outlet hole 213 and the third ventilation groove 222 is smaller than the cross-sectional area of ​​the outlet pipe 221, that is, the gas will experience multiple changes in the cross-sectional area of ​​the outlet channel in the second silencer assembly 22 and the outlet pipe 21. It can be understood that in order to achieve the purpose of reducing noise, the gas should flow fully between different outlet pipes 221, and the gas flows from one end of an outlet pipe 221 to the other end, and then enters the next outlet pipe 221, and the steps are circulated until the gas enters the outlet pipe 21. In this embodiment, two parallel outlet pipes 221 are taken as an example, and in other embodiments, there may be three or even more outlet pipes 221.

[0045] Preferably, if Figures 1 to 6 As shown, the first muffler assembly 12 is connected to the second muffler assembly 22, the air inlet pipe 11 and the air outlet pipe 21 are respectively arranged at the two ends of the first muffler assembly 12 and the second muffler assembly 22, the air inlet pipe 11 is provided with a first blocking portion 1122 corresponding to one end of the air inlet pipe 121 and the air outlet pipe 221, and the air outlet pipe 21 is provided with a second blocking portion 2121 corresponding to the other end of the air inlet pipe 121 and the air outlet pipe 221. The first blocking portion 1122 and the second blocking portion 2121 cooperate with each other to block the two ends of the air inlet pipe 121 and the air outlet pipe 221, so that a closed air flow channel is formed in the first muffler assembly 12 and the second muffler assembly 22.

[0046] like Figures 5 to 8 As shown, the conversion mechanism 3 includes a second air inlet hole 31, an air inlet chamber 32, a second air outlet hole 33, an air outlet chamber 34 and a conversion chamber 35. The second air inlet hole 31 is connected to the air inlet chamber 32 and the air inlet passage 121, and the second air outlet hole 33 is connected to the air outlet chamber 34 and the air outlet passage 221. The conversion chamber 35 is connected to the air inlet chamber 32 and the air outlet chamber 34 respectively. The gas in the air inlet passage 121 enters the air inlet chamber 32 through the second air inlet hole 31, is then sucked into the conversion chamber 35, and is then pushed into the air outlet chamber 34, and enters the air outlet passage 221 through the second air outlet hole 33.

[0047] Further, the conversion chamber 35 includes a cylinder 351, a third air inlet 352, a third air outlet 353 and an air flow guide plate 354. The third air inlet 352 and the third air outlet 353 are arranged on the cylinder 351. The cylinder 351 is used to connect a compressor, and the compressor can form negative pressure and positive pressure in the cylinder 351. The air flow guide plate 354 is provided with a first check valve 3541 covering the third air inlet 352 and a second check valve 3542 covering the third air outlet 353. When the cylinder 351 is under negative pressure, the first check valve 3541 is opened, the second check valve 3542 is closed, and the gas in the air inlet chamber 32 enters the cylinder 351 through the third air inlet 352; when the cylinder 351 is under positive pressure, the first check valve 3541 is closed, the second check valve 3542 is opened, and the gas in the cylinder 351 enters the air outlet chamber 34 through the third air outlet 353.

[0048] Embodiment 2

[0049] like Fig. 9 As shown, the present invention further provides an atomizer compressor 20, which includes a compressor 4 and the noise reduction device 10 described in Example 1. The compressor 4 includes a driving device 41 and a piston rod 42, the driving device 41 is connected to the piston rod 42, and the piston rod 42 is located in the cylinder 351. The driving device 41 can drive the piston rod 42 to reciprocate in the cylinder 351 to generate negative pressure and positive pressure in the cylinder 351. It is worth mentioning that the atomizer compressor 20 provided by the present invention can reduce the noise to below 46DB without changing the installation and application method of the compressor 4.

[0050] It should be understood that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. For those skilled in the art, the technical solutions described in the above embodiments can be modified, or some of the technical features therein can be replaced by equivalents; and all these modifications and replacements should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A noise reduction device, characterized in that: include: An air intake mechanism, comprising an air intake pipe and a first silencer assembly, wherein the air intake pipe is in communication with the first silencer assembly; An air outlet mechanism comprises an air outlet pipe and a second silencer assembly, wherein the air outlet pipe is in communication with the second silencer assembly; A conversion mechanism, connecting the first silencer assembly and the second silencer assembly, for introducing the gas of the first silencer assembly into the second silencer assembly; The cross-sectional area of ​​the air inlet passage formed by the air inlet pipe and the first silencer assembly is changed several times in size; the cross-sectional area of ​​the air outlet passage formed by the air outlet pipe and the second silencer assembly is changed several times in size; The air inlet pipe comprises an air inlet, a first sealing member and a first air inlet hole. A through hole is provided in the first sealing member. The two ends of the through hole are respectively connected to the air inlet and the first air inlet hole. The cross-sectional areas of the air inlet, the first air inlet hole and the through hole are not equal. A plurality of air inlets are provided. The first silencer assembly includes a plurality of air intake pipes, the plurality of air intake pipes are connected to each other, and first ventilation grooves are provided at the ends of the connection between different air intake pipes.

2. The noise reduction device according to claim 1, characterized in that: An air flow baffle is provided in the middle of the air intake duct connected to the air intake port, and a second ventilation groove is provided on the other side of the air flow baffle relative to the air intake port, and the cross-sectional areas of the first ventilation groove and the second ventilation groove are smaller than the cross-sectional area of ​​the air intake duct.

3. The noise reduction device according to claim 1 or 2, characterized in that: The air outlet pipe comprises an air outlet, a second sealing member and a first air outlet hole. The air outlet and the first air outlet hole are interconnected and are both arranged on the second sealing member.

4. The noise reduction device according to claim 3, characterized in that: The second silencer assembly includes a plurality of air outlet pipes, which are interconnected, and a third ventilation groove is provided at the ends of the connection points of different air outlet pipes, and the cross-sectional area of ​​the first air outlet hole and the third ventilation groove is smaller than the cross-sectional area of ​​the air outlet pipe.

5. The noise reduction device according to claim 4, characterized in that: The first silencer assembly is connected to the second silencer assembly, and the air inlet pipe and the air outlet pipe are respectively arranged at the two ends of the first silencer assembly and the second silencer assembly. The air inlet pipe is provided with a first blocking portion for blocking one end of the air inlet pipe and the air outlet pipe, and the air outlet pipe is provided with a second blocking portion for blocking the other end of the air inlet pipe and the air outlet pipe.

6. The noise reduction device according to claim 5, characterized in that: The conversion mechanism includes a second air inlet hole, an air inlet chamber, a second air outlet hole, an air outlet chamber and a conversion chamber. The second air inlet hole connects the air inlet chamber and the air inlet duct, the second air outlet hole connects the air outlet chamber and the air outlet duct, and the conversion chamber connects the air inlet chamber and the air outlet chamber respectively.

7. The noise reduction device according to claim 6, characterized in that: The conversion chamber includes a cylinder, a third air inlet, a third air outlet and an air flow guide plate, wherein the third air inlet and the third air outlet are arranged on the cylinder, the cylinder is used to connect to the compressor, and the air flow guide plate is provided with a first one-way valve covering the third air inlet and a second one-way valve covering the third air outlet.

8. An atomizer compressor, characterized in that: It comprises a compressor and the noise reduction device according to any one of claims 1 to 7, wherein the compressor is used to provide gas flow power to the conversion mechanism.

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