Atomizer

Abstract

The utility model discloses an atomizer which comprises a shell (1) and a compressor (3) located in the shell (1), and is characterized in that the atomizer further comprises an air inlet device (2) and a first anechoic chamber (4), the air inlet device (2) is provided with an air inlet hole (2.4), and the air inlet hole (2.4) is located in the shell (1); the air inlet device (2) is communicated with the first anechoic chamber (4), and the first anechoic chamber (4) is communicated with the compressor (3); the shell (1) is provided with a heat dissipation air inlet (1.1) and a heat dissipation air outlet (1.2). The air inlet hole of the air inlet device is formed in the shell, noise, transmitted to the outside of the shell, of the compressor can be reduced, the first anechoic chamber is further arranged between the air inlet device and the compressor, noise can be further reduced, and user experience is improved.

Description

Technical Field

[0001] The utility model relates to an atomizer, belonging to the technical field of medical atomizers. Background Art

[0002] The main noise source of the atomizer is the compressor (air pump). At present, the air inlet on the outer shell of the DC compression atomizer is directly connected to the compressor inside the shell. The gas outside the shell enters the compressor through the air inlet and is compressed. The noise generated when the compressor works will spread along the pipeline, and a large amount of noise will directly spread to the outside of the shell through the air inlet, bringing an uncomfortable experience to users. Content of the Utility Model

[0003] The utility model provides an atomizer, which helps to reduce the noise of the atomizer. The specific technical solution is as follows.

[0004] An atomizer includes a shell and a compressor located inside the shell. It is characterized in that it further includes an air intake device and a first sound absorption chamber. The air intake device has an air intake hole, and the air intake hole is located inside the shell; the air intake device is communicated with the first sound absorption chamber, and the first sound absorption chamber is communicated with the compressor; a heat dissipation air inlet and a heat dissipation air outlet are arranged on the shell.

[0005] By adopting the above technical solution, the air intake hole of the air intake device is arranged inside the shell. When the compressor of the atomizer works, the generated noise enters the first sound absorption chamber along the air intake pipeline, and then enters the air intake device after passing through the first sound absorption chamber. The noise enters the inside of the shell from the air intake hole and will not be directly transmitted to the outside of the shell. Therefore, the noise of the compressor can be significantly reduced. When the air outside the shell enters the inside of the shell through the heat dissipation air inlet, a part of the heat dissipation air is discharged from the heat dissipation air outlet, and a part of the heat dissipation air enters the first sound absorption chamber and the compressor from the air intake hole. After the noise generated by the compressor is conducted to the inside of the shell from the air intake hole, the huge space inside the shell has a good noise reduction effect, and finally a small part of the noise will be conducted to the outside of the shell through the heat dissipation air inlet and the heat dissipation air outlet.

[0006] Further, the air intake device includes a cylindrical part, a filtering element and a cover part. The cover part is detachably arranged at the outer end of the cylindrical part, and the filtering element is located in the inner cavity of the cylindrical part; an air intake hole is arranged on the side wall of the cylindrical part, and a through hole for communicating with the first sound absorption chamber is arranged at the inner end of the cylindrical part; the air intake hole is located inside the shell. The filtering element can be replaced by detaching the cover part.

[0007] Further, the outer part of the cylindrical part has a flange, and the flange is spliced with the outer shell. The part of the cylindrical part inside the flange (including the air inlet hole) is located inside the outer shell, and the part of the cylindrical part outside the flange is located outside the outer shell. Since the flange is spliced with the outer shell, the cover part can be exposed outside the outer shell, which is convenient for disassembling the cover part to replace the filter element.

[0008] Further, the cover part has a sleeve, and the sleeve is located in the inner cavity of the cylindrical part. At least part of the filter element is located inside the sleeve; a sealing ring is sleeved on the sleeve. By providing the sealing ring, on the one hand, the sealing and tight connection between the cylindrical part and the cover part are realized, and on the other hand, it can prevent noise from being conducted from between the cylindrical part and the cover part to the outside of the outer shell. Preferably, the outer diameter of the filter element is smaller than the inner diameter of the cylindrical part, and the outer diameter of the filter element is adapted to the inner diameter of the sleeve. Such a setting makes the filter element be stably fixed without shaking. There is a certain gap between the filter element and the cylindrical part. The air entering from the air inlet hole first comes to this gap and then is filtered by the filter element, ensuring the air volume and smoothness of the air flow.

[0009] Further, there are several partition plates inside the first sound absorption chamber, and the several partition plates are used to increase the travel path of the air flow in the first sound absorption chamber. That is, the several partition plates make a labyrinth structure formed inside the first sound absorption chamber, and the air flow will make more turns and U-turns inside the first sound absorption chamber, extending the travel path of the air flow. When the noise of the compressor propagates upstream along the pipeline towards the air flow, the noise propagation path is just opposite to the air flow travel path. Extending the travel path of the air flow is beneficial to reducing noise. Preferably, sound-absorbing cotton is also provided inside the first sound absorption chamber.

[0010] Further, it also includes a solenoid valve and an air outlet. A first pipeline is connected between the compressor and the solenoid valve, and a second pipeline is connected between the solenoid valve and the air outlet. Preferably, it also includes a second sound absorption chamber, and an exhalation exhaust pipe is connected between the solenoid valve and the second sound absorption chamber. Preferably, it also includes a circuit board and a pressure sensor located on the circuit board. A branch pipeline is provided on the second pipeline and connected to the pressure sensor.

[0011] In the atomizer of the present utility model, the air inlet hole of the air inlet device is arranged inside the outer shell, which helps to reduce the noise of the compressor conducted to the outside of the outer shell and improves the user experience; and a first sound absorption chamber is also arranged between the air inlet device and the compressor, which is beneficial to further reducing noise. Description of the Drawings

[0012] Figure 1 is a schematic diagram of the atomizer of the present utility model;

[0013] Figure 2 is an exploded schematic diagram of the atomizer of the present utility model;

[0014] Figure 3 Partial schematic view of the atomizer of the present utility model;

[0015] Figure 4 Exploded schematic view of the air intake device of the atomizer (first perspective);

[0016] Figure 5 Exploded schematic view of the air intake device of the atomizer (second perspective);

[0017] Figure 6 Partial cross-sectional schematic view of the air intake device of the atomizer;

[0018] Figure 7 Cross-sectional schematic view of the first muffler chamber.

[0019] In the figure: housing 1, air intake device 2, compressor 3, first muffler chamber 4, gap 5, first pipe 6.1, second pipe 6.2, branch pipe 6.2.1, air outlet 7, solenoid valve 10, second muffler chamber 11, circuit board 8, fan 9, heat dissipation air inlet 1.1, heat dissipation air outlet 1.2, cylindrical part 2.1, filter element 2.2, cover part 2.3, air intake hole 2.4, through hole 2.5, flange 2.6, sleeve 2.7, sealing ring 2.8, partition board 4.1, muffler chamber air inlet 4.2, muffler chamber air outlet 4.3, sound-absorbing cotton 4.4, exhalation exhaust pipe 10.1. Specific embodiments

[0020] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0021] See Figures 1 - 7 , the atomizer includes a housing 1, an air intake device 2, a compressor 3 and a first muffler chamber 4. The air intake device 2 has an air intake hole 2.4, and the air intake hole 2.4 is located inside the housing 1; the air intake device 2 is communicated with the first muffler chamber 4, and the first muffler chamber 4 is communicated with the compressor 3; a heat dissipation air inlet 1.1 and a heat dissipation air outlet 1.2 are provided on the housing 1, and the fan 9 is located above the heat dissipation air outlet 1.2.

[0022] Among them, the air intake device 2 of the atomizer includes a cylindrical part 2.1, a filter element 2.2 and a cover part 2.3. The cover part 2.3 is arranged at the outer end of the cylindrical part 2.1, and the filter element 2.2 is located in the inner cavity of the cylindrical part 2.1; an air intake hole 2.4 is provided on the side wall of the cylindrical part 2.1, and a through hole 2.5 is provided at the inner end of the cylindrical part 2.1. Among them, the filter element 2.2 can adopt filter cotton. In this embodiment, the inner and outer refer to the inside and outside of the atomizer. The end close to the inside of the atomizer is the inner end, and vice versa is the outer end.

[0023] The outer part of the cylindrical part 2.1 has a flange 2.6, and the flange 2.6 is joined to the housing 1. The part of the cylindrical part 2.1 inside the flange 2.6 (including the air inlet hole 2.4) is located inside the housing 1, and the part of the cylindrical part 2.1 outside the flange 2.6 is located outside the housing 1. Since the flange 2.6 is joined to the housing 1, the cover part 2.3 is exposed outside the housing 1, which facilitates the removal of the cover part 2.3 to replace the filter element 2.2.

[0024] The cover part 2.3 has a sleeve 2.7, the sleeve 2.7 is located in the inner cavity of the cylindrical part 2.1, and at least part of the filter element 2.2 is located inside the sleeve 2.7. Preferably, as Figure 6 shown, the outer diameter of the filter element 2.2 is smaller than the inner diameter of the cylindrical part 2.1, and the outer diameter of the filter element 2.2 is adapted to the inner diameter of the sleeve 2.7. Preferably, a sealing ring 2.8 is sleeved on the sleeve 2.7.

[0025] By providing the sleeve 2.7 and the sealing ring 2.8, it is beneficial to movably arrange the cover part 2.3 on the cylindrical part 2.1, and the sleeve 2.7 can be engaged with the cylindrical part 2.1 in a socket form; on the one hand, the sealing ring 2.8 realizes the sealing and tight connection between the cylindrical part 2.1 and the cover part 2.3, and on the other hand, it can prevent noise from being conducted from between the cylindrical part 2.1 and the cover part 2.3 to the outside of the housing 1. The adaptation of the outer diameter of the filter element 2.2 to the inner diameter of the sleeve 2.7 enables the filter element 2.2 to be stably fixed without shaking. There is a certain gap 5 between the filter element 2.2 and the cylindrical part 2.1. The air entering from the air inlet hole 2.4 first comes to this gap 5 and then is filtered by the filter element 2.2, ensuring the air volume and smoothness of the air flow.

[0026] As Figure 7 shown, the first sound absorption chamber 4 has two partition plates 4.1 inside. The two partition plates 4.1 are arranged in parallel, so that the air flow will make more turns and U-turns, which is used to increase the travel path of the air flow in the first sound absorption chamber 4. Figure 7 The arrows in

[0027] represent the travel path of the air flow. That is, the two partition plates 4.1 make a maze structure inside the first sound absorption chamber 4, extending the travel path of the air flow. When the noise of the compressor propagates along the pipeline to the upstream of the air flow, the noise propagation path is just opposite to the travel path of the air flow. Extending the travel path of the air flow is beneficial to reducing noise. Preferably, sound-absorbing cotton 4.4 is also provided inside the first sound absorption chamber 4, and the sound-absorbing cotton 4.4 helps to reduce noise by dispersing the air.

[0028] The atomizer further includes an air outlet 7, a solenoid valve 10, a second soundproof chamber 11, and a circuit board 8. A first pipeline 6.1 is connected between the compressor 3 and the solenoid valve 10. A second pipeline 6.2 is connected between the solenoid valve 10 and the air outlet 7. A branch pipeline 6.2.1 is provided on the second pipeline 6.2 and is connected to a barometric pressure sensor (not shown) located on the circuit board 8. An exhalation exhaust pipe 10.1 is connected between the solenoid valve 10 and the second soundproof chamber 11. When using the atomizer, an external pipeline is connected to the air outlet 7. Since the external pipeline will transmit some of the exhaled gas back to the second pipeline 6.2, the exhaled gas is transmitted through the branch pipeline 6.2.1 to the barometric pressure sensor on the circuit board 8. When the barometric pressure sensor (not shown) senses that the user is in an exhalation state, the solenoid valve 10 switches the gas flow direction, and discharges the compressed gas through the first pipeline 6.1 to the second soundproof chamber 11, avoiding the waste of the liquid medicine in the external atomization cup during exhalation; when the barometric pressure sensor (not shown) senses that the user is in an inhalation state, the solenoid valve 10 switches the gas flow direction, and the solenoid valve 10 discharges the compressed gas to the air outlet 7 through the second pipeline 6.2.

[0029] The air intake mode and noise reduction principle of the atomizer of the present utility model are as follows: When the air outside the housing 1 enters the inside of the housing 1 through the heat dissipation air inlet 1.1, a part of the heat dissipation air is discharged from the heat dissipation air outlet 1.2, and a part of the heat dissipation air enters the gap 5 between the cylindrical member 2.1 and the filter element 2.2 through the air intake hole 2.4. After being filtered by the filter element 2.2, it enters the first soundproof chamber 4 through the through hole 2.5, and then enters the downstream compressor 3. The compressed air will be discharged from the air outlet 7 through the exhalation exhaust pipe 10.1. The noise generated by the compressor 3 first enters the first soundproof chamber 4, and then is directly conducted to the inside of the housing 1 instead of the outside of the housing 1 through the air intake hole 2.4. The huge space inside the housing 1 has a good noise reduction effect, and finally a part of the noise will be conducted to the outside of the housing 1 through the heat dissipation air inlet 1.1 and the heat dissipation air outlet 1.2.

[0030] The embodiments of the present utility model have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and the features in the embodiments of the present utility model can be combined with each other. The present utility model is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present utility model, those of ordinary skill in the art can also make many forms without departing from the purpose of the present utility model and the scope protected by the claims. All of these fall within the protection scope of the present utility model.

Claims

1. An atomizer, comprising a housing (1) and a compressor (3) located inside the housing (1), characterized in that, It further includes an air intake device (2) and a first muffler chamber (4). The air intake device (2) has an air intake hole (2.4), and the air intake hole (2.4) is located inside the housing (1). The air intake device (2) is communicated with the first muffler chamber (4), and the first muffler chamber (4) is communicated with the compressor (3). A heat dissipation air inlet (1.1) and a heat dissipation air outlet (1.2) are provided on the housing (1).

2. The atomizer according to claim 1, characterized in that, Inside the first muffler chamber (4), there are several partition plates (4.1), and the several partition plates (4.1) are used to increase the flow path of the air flow in the first muffler chamber (4).

3. The atomizer according to claim 2, characterized in that, Sound-absorbing cotton (4.4) is also provided inside the first muffler chamber (4).

4. The atomizer according to claim 1, wherein The air intake device (2) includes a cylindrical part (2.1), a filtering element (2.2) and a cover part (2.3). The cover part (2.3) is detachably arranged at the outer end of the cylindrical part (2.1), and the filtering element (2.2) is located in the inner cavity of the cylindrical part (2.1). An air intake hole (2.4) is provided on the side wall of the cylindrical part (2.1), and a through hole (2.5) for communicating with the first muffler chamber (4) is provided at the inner end of the cylindrical part (2.1). The air intake hole (2.4) is located inside the housing (1).

5. An atomizer according to claim 4, characterized in that, A flange (2.6) is provided outside the cylindrical part (2.1), and the flange (2.6) is spliced with the housing (1).

6. An atomizer according to claim 4, characterized in that, The cover part (2.3) has a sleeve (2.7), and the sleeve (2.7) is located in the inner cavity of the cylindrical part (2.1). At least part of the filtering element (2.2) is located inside the sleeve (2.7). A sealing ring (2.8) is sleeved on the sleeve (2.7).

7. An atomizer according to claim 6, characterized in that, The outer diameter of the filtering element (2.2) is smaller than the inner diameter of the cylindrical part (2.1), and the outer diameter of the filtering element (2.2) is adapted to the inner diameter of the sleeve (2.7).

8. An atomizer according to claim 1, characterized in that, It further includes a solenoid valve (10) and an air outlet (7). A first pipeline (6.1) is communicated between the compressor (3) and the solenoid valve (10), and a second pipeline (6.2) is communicated between the solenoid valve (10) and the air outlet (7).

9. The atomizer according to claim 8, characterized in that, It further includes a second muffler chamber (11), and an exhalation exhaust pipe (10.1) is communicated between the solenoid valve (10) and the second muffler chamber (11).

10. An atomizer according to claim 8, characterized in that, It further includes a circuit board (8) and a pressure sensor located on the circuit board (8). A branch pipeline (6.2.1) is provided on the second pipeline (6.2) and is connected to the pressure sensor.

Images