Compression type atomizer

Abstract

A compression type atomizer comprises a shell, a compression pump assembly, a silencing box and a heat dissipation exhaust fan, a filtering air inlet is connected with an inlet of the compression pump assembly through a pipeline via the silencing box, and an outlet of the compression pump assembly is connected with an air outlet through a pipeline; the bottom of the compression pump assembly is connected with the inner bottom surface of the shell through a buffer pad, and the top of the compression pump assembly is in compression fit with the inner top surface of the shell through a damping layer; the left end and the right end of the shell are each provided with a heat dissipation air inlet so that the heat dissipation air inlets can be aligned with the two ends of the compression pump assembly. The heat dissipation exhaust fan is arranged on the front side or the rear side of the compression pump assembly, a heat dissipation air outlet is formed in the position, opposite to the heat dissipation exhaust fan, of the shell, and therefore a heat dissipation structure with air inlet at the two ends and air outlet at the side is formed.

Description

Technical Field

[0001] This utility model relates to medical devices, specifically to a compressor nebulizer. Background Technology

[0002] As people become increasingly health-conscious, medical devices are being used more and more widely. Nebulization is a major treatment trend for some respiratory diseases, and nebulizer products are receiving increasing attention. Currently, the most commonly used nebulizers in hospitals and homes are compressor-type nebulizers, which mainly use a compressor pump to compress gas to achieve the nebulization effect of medication.

[0003] Compressed atomizing products are now widely available on the market, but the internal design of current atomizers is simple, resulting in problems such as short lifespan and high noise, which affects the user experience. Utility Model Content

[0004] The purpose of this invention is to provide a compression atomizer.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a compression atomizer, comprising a housing, a compression pump assembly, a silencer box, and a heat dissipation exhaust fan. The housing is provided with a filter inlet and an air outlet. The filter inlet is connected to the inlet of the compression pump assembly via a pipe through the silencer box, and the outlet of the compression pump assembly is connected to the air outlet via a pipe. The housing has a length direction and a width direction, and the compression pump assembly is placed in the middle of the housing along its own length direction. Heat dissipation air inlets are provided on both the left and right ends of the housing to align with the two ends of the compression pump assembly. The heat dissipation exhaust fan is provided on the front or rear side of the compression pump assembly, and a heat dissipation air outlet is provided on the housing facing the heat dissipation exhaust fan, thereby forming a heat dissipation structure with air inlet at both ends and air outlet at the side.

[0006] In the above solution, a recess is formed on the outer surface of the housing corresponding to the position of the heat dissipation air inlet, and the heat dissipation air inlet is opened on the recess to reduce dust accumulation on the heat dissipation air inlet.

[0007] In the above scheme, the compression pump assembly is a DC brushless dual-cylinder compression pump; the cooling exhaust fan is set facing the outlet side cylinder of the DC brushless dual-cylinder compression pump; the brushless dual-cylinder compression pump has good quietness, high flow rate, and high efficiency; the cooling exhaust fan is set facing the outlet side cylinder of the DC brushless dual-cylinder compression pump because more heat accumulates at the outlet side cylinder.

[0008] In the above scheme, the heat dissipation air inlet is biased towards the bottom on the end face of the housing; the silencer box is located on the front or rear side of the compressor pump assembly; the compressor atomizer also includes a power board and a main control board, which are located on both ends of the compressor pump assembly and avoid the heat dissipation air inlet. The power board and the main control board are connected by an inter-board line. This arrangement makes the internal structure more compact and the external size smaller.

[0009] In the above solution, the housing is composed of a lower shell, an upper shell, and two end side plates. The two end side plates are positioned with the upper and lower shells via slots, and the upper and lower shells are fastened together by screws inserted from top to bottom. This allows the compressor pump assembly, silencer box, and cooling fan to be installed on the lower shell first, followed by the two end side plates, and finally the upper shell to be closed and the screws tightened. This optimizes the housing assembly design, minimizes the use of fasteners, and improves assembly efficiency.

[0010] In the above solution, the filter inlet has a recessed groove on the outer surface of the housing for installing the filter, with an air inlet hole in the center of the groove. A filter assembly is installed within the groove, comprising a filter cover, a filter element, and a sealing ring. A columnar body extends from the filter cover into the housing, with an air inlet channel formed by multiple ventilation grooves on its outer periphery leading to a central hole. The end of the columnar body is inserted into the air inlet hole. The sealing ring is located on the outer periphery of the end of the columnar body to seal it to the air inlet hole, ensuring a connection between the central hole and the air inlet hole. The filter element is annular and is press-fitted onto the columnar body of the filter cover, sealing its outer periphery with the ventilation grooves. The gap between the filter element and the groove serves as the air inlet gap, thus forming an integrated filter assembly structure. This improves the utilization rate of the filter element and facilitates user replacement of the filter assembly.

[0011] In the above scheme, the bottom of the compression pump assembly is connected to the bottom surface of the housing through a buffer pad, and its top is pressed and fitted by the top surface of the housing through a damping layer.

[0012] In the above scheme, the damping layer is composed of an elastic layer and a sponge layer. The elastic layer is on top and fits against the inner top surface of the shell, while the sponge layer is on the bottom and is honeycomb-shaped for sound absorption.

[0013] In the above scheme, the filter inlet is connected to the inlet of the silencer box via a first noise-reducing hose, the outlet of the silencer box is connected to the inlet of the compressor pump assembly via a second noise-reducing hose, and the outlet of the compressor pump assembly is connected to the outlet via a third noise-reducing hose. The first, second, and third noise-reducing hoses are all composed of two pipe joints and a hose with a hardness greater than 65HA connected between the two pipe joints. The diameter of the two pipe joints is larger than the diameter of the hose, and at least one of the two pipe joints is an L-shaped elbow joint, thereby forming a resistant noise reduction structure with a channel cross-sectional area that changes multiple times.

[0014] In the above scheme, the inlet of the silencer box is located on the top surface of the silencer box, and the L-shaped bend of the first noise reduction hose is connected to the inlet of the silencer box from top to bottom.

[0015] In the above scheme, the filter air inlet extends into the housing with an upwardly bent extension tube, and the other pipe connector of the first noise reduction hose is a straight connector, which is connected to the opening of the extension tube.

[0016] In the above scheme, the inlet and outlet of the compression pump assembly are located at the left and right ends of the compression pump assembly, the L-shaped elbow of the second noise reduction hose is connected to the inlet of the compression pump assembly, and the L-shaped elbow of the third noise reduction hose is connected to the outlet of the compression pump assembly.

[0017] Compared with existing atomizers, this utility model has a more compact internal layout and clear stacking logic, which can achieve high flow rate and low noise design in a small size; in addition, due to the adoption of an active end-to-end air intake and side air exhaust heat dissipation structure, the temperature rise of the whole machine is effectively controlled and the service life is extended. Attached Figure Description

[0018] Figure 1 This is an exploded view of the entire machine according to an embodiment of the present invention;

[0019] Figure 2 This is a three-dimensional schematic diagram of the entire machine without the upper shell, according to an embodiment of the present invention. Figure 1 ;

[0020] Figure 3 This is a three-dimensional schematic diagram of the entire machine without the upper shell, according to an embodiment of the present invention. Figure 2 ;

[0021] Figure 4 This is a full sectional view along the length of an embodiment of the present utility model.

[0022] Figure 5 This is a full cross-sectional view of the width direction of an embodiment of the present invention. Figure 1 The section is located at the air inlet of the filter.

[0023] Figure 6 This is a full cross-sectional view of the width direction of an embodiment of the present invention. Figure 2 , cut at the air outlet;

[0024] Figure 7 This is an exploded view of the filter assembly according to an embodiment of the present invention;

[0025] Figure 8 This is an exploded view of the upper shell of an embodiment of the present invention;

[0026] Figure 9 This is an exploded schematic diagram of the first noise-reducing hose according to an embodiment of the present invention;

[0027] Figure 10 This is an exploded schematic diagram of the silencer box according to an embodiment of the present utility model;

[0028] Figure 11 This is a schematic diagram of the overall shape of an embodiment of the utility model. The arrows in the diagram indicate the direction of heat dissipation airflow.

[0029] In the above diagram: 1. Housing; 11. Lower housing; 111. Heat dissipation outlet; 12. Upper housing; 13. Side plate; 131. Heat dissipation inlet; 14. Groove; 141. Air inlet; 2. Compressor pump assembly; 21. Buffer pad; 22. Damping layer; 3. Silencer box; 4. Filter air inlet; 41. Extension tube; 5. Air outlet; 51. Two-way connector; 52. Nut; 53. O-ring; 6. First noise reduction hose; 61. Pipe connector; 62. Pipe connector; 63. Hose; 7. 8. Second noise reduction hose; 9. Third noise reduction hose; 10. Cooling exhaust fan; 20. Power board; 21. Main control board; 32. Inter-board wiring; 43. Filter assembly; 401. Filter cover; 4011. Columnar body; 40111. Channel; 40112. Ventilation slot; 402. Filter element; 403. Sealing ring; 50. Anti-collapse tube assembly; 501. Anti-collapse tube connector; 502. Anti-collapse tube connecting tube; 503. Anti-collapse tube adapter; 60. Shock-absorbing feet; 70. Push-button switch. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0031] See the example. Figure 1-11 As shown, a compression atomizer:

[0032] See Figures 1-6 and Figure 8As shown, the compression atomizer includes a housing 1, a compressor pump assembly 2, a silencer box 3, and a cooling exhaust fan 9. The housing 1 has a filter inlet 4 and an outlet 5. The filter inlet 4 refers to an inlet 4 equipped with a filter or filter screen. The filter inlet 4 is connected to the inlet of the compressor pump assembly 2 via a pipe through the silencer box 3, and the outlet of the compressor pump assembly 2 is connected to the outlet 5 via a pipe.

[0033] The housing has a length direction and a width direction, and the compressor pump assembly is positioned in the middle of the housing along its length direction; see also Figure 1-6 and Figure 8 As shown, the compression pump assembly 2 is located in the middle of the housing 1. Its bottom is connected to the bottom surface of the housing 1 via a buffer pad 21, and its top is pressed against the top surface of the housing 1 via a damping layer 22. See details. Figure 1 and Figure 4 The buffer pads 21 are specifically rubber springs, numbering three or more (four are shown in the example in the figure), and are positioned under the four corners of the base plate of the compression pump assembly 2. The interference fit between the damping layer 22 and the top surface of the compression pump assembly 2 must be greater than the compression of the buffer pads 21 at the bottom of the compression pump assembly 2, ensuring that the compression pump assembly 2 is in a vertically flexible connection in the whole machine, thereby reducing the vibration of the pump body and the housing 1.

[0034] Multiple foot pads 60 can also be provided on the outer bottom surface of the housing 1, such as Figure 1 For example, four feet pads (40) are used to make the device more stable and to eliminate vibrations during operation.

[0035] See Figures 1-3 and Figure 11 As shown, each of the left and right ends of the housing 1 has a heat dissipation air inlet 131 aligned with the two ends of the compressor pump assembly 2. The heat dissipation exhaust fan 9 is provided on the front or rear side of the compressor pump assembly 2, and the housing 1 has a heat dissipation air outlet 111 facing the heat dissipation exhaust fan 9, thereby forming a heat dissipation structure with air inlet at both ends and air outlet at the sides.

[0036] See Figures 1-3 and Figure 11 As shown, a recess is formed on the outer surface of the housing 1 at the position corresponding to the heat dissipation air inlet 131. The heat dissipation air inlet 131 is opened on the recess to reduce dust accumulation on the heat dissipation air inlet 131 and reduce the entry of external dust into the housing 1.

[0037] See Figures 1-4 As shown, the compression pump assembly 2 is a DC brushless dual-cylinder compression pump, which features high flow rate, high efficiency, and quiet operation. The cooling exhaust fan 9 is positioned facing the outlet side cylinder of the DC brushless dual-cylinder compression pump to quickly dissipate heat from the outlet side cylinder and prevent heat buildup.

[0038] See Figures 1-4 As shown, the heat dissipation air inlet 131 is offset towards the bottom on the end face of the housing; the silencer box 3 is disposed on the front or rear side of the compressor pump assembly 2, specifically, the silencer box 3 and the heat dissipation exhaust fan 9 are respectively located on the front and rear sides of the compressor pump assembly 2, that is, when the heat dissipation exhaust fan 9 is located on the rear side, the silencer box 3 is located on the front side, and vice versa. The figure is an example, with the silencer box 3 located on the front side of the compressor pump assembly 2 and the heat dissipation exhaust fan 9 located on the rear side of the compressor pump assembly 2.

[0039] See Figures 1-4 As shown, the compressor atomizer also includes a power board 10 and a main control board 20. The power board 10 and the main control board 20 are respectively located on both ends of the compressor pump assembly 2, avoiding the heat dissipation air inlet 131. The power board 10 and the main control board 20 are connected by an inter-board line 30. A wiring groove can be opened on the inner bottom surface of the housing corresponding to the inter-board line 30 and the switch line, that is, the inter-board line can be routed along the wiring groove. Specifically, the wiring groove can be set between the bottom of the silencer box 3 and the inner bottom surface of the housing 1, that is, after the wiring is arranged, the silencer box 3 can be covered and fixed, which optimizes the wiring structure of the product and facilitates production.

[0040] See Figures 1-4 as well as Figure 8 As shown, the housing 1 is composed of a lower shell 11, an upper shell 12, and two end side plates 13. The two end side plates 13 are positioned with the upper shell 12 and the lower shell 11 through slots, and the upper shell and the lower shell are fastened together by screws inserted from top to bottom. This allows the internal components such as the compressor pump assembly 2, the silencer box 3, the heat dissipation fan 9, the power board 10, and the main control board 20 to be installed on the lower shell 11 first, then the two end side plates 13 are placed, and finally the upper shell 12 is covered and the screws are tightened. This bottom-up assembly method allows the bottom of the compressor pump assembly 2 to be supported by the buffer pad 21, while its top surface is interference-fitted by the upper shell 12 through the damping layer 22, which optimizes the vertical vibration of the compressor pump assembly 2. It also has low assembly cost, does not require other fasteners for limiting, and has the most compact structure.

[0041] See Figure 1 and Figure 4As shown, at the filter inlet 4, a groove 14 for installing the filter is recessed on the outer side of the housing 1, and an air inlet hole 141 is opened in the middle of the groove 14. The filter assembly 40 is installed in the groove 14. The filter assembly 40 includes a filter cover plate 401, a filter element 402, and a sealing ring 403. A columnar body 4011 extends from the filter cover plate 401 into the housing (1). An air inlet channel 40111 is opened on the columnar body 4011. The channel 40111 is connected to the central hole of the columnar body 4011 by multiple air grooves 40112 on the outer periphery of the columnar body 4011. The end of the columnar body 4011 is inserted into the air inlet hole 141. A sealing ring 403 is provided on the outer periphery of the filter element to seal the columnar body 4011 and the air inlet 141, so that the central hole of the columnar body 4011 is connected to the air inlet 141. The filter element 402 is annular and is press-fitted onto the columnar body (4011) of the filter cover plate (401) to seal the multiple ventilation grooves 40112 on its outer periphery. The gap between the filter element 402 and the groove 14 serves as the air inlet gap, thus forming an integrated filter assembly structure. When the user replaces the filter element, the entire filter assembly 40 needs to be pulled out directly for replacement.

[0042] See Figures 1-3 As shown, the filter inlet 4 is connected to the inlet of the silencer box 3 via a first noise-reducing hose 6, the outlet of the silencer box 3 is connected to the inlet of the compressor pump assembly 2 via a second noise-reducing hose 7, and the outlet of the compressor pump assembly 2 is connected to the outlet 5 via a third noise-reducing hose 8. The first noise-reducing hose 6, the second noise-reducing hose 7, and the third noise-reducing hose 8 are all composed of two pipe joints 61 and 62 and a hose 63 with a hardness greater than 65HA connected between the two pipe joints 61 and 62. The diameter of the two pipe joints 61 and 62 is larger than the diameter of the hose 63, and at least one of the two pipe joints 61 and 62 is an L-shaped bend, thus forming a resistant noise-reducing structure with a channel cross-sectional area that changes multiple times. Furthermore, the two pipe joints of the first noise-reducing hose 6, the second noise-reducing hose 7, and the third noise-reducing hose 8 facilitate internal pipe insertion, and the middle section is a thin hose with a hardness greater than 65HA, providing excellent bending flexibility, avoiding internal pipe bending, and preventing pipe resonance caused by the airflow velocity at the outlet.

[0043] Specifically, the inlet of the muffler box 3 is located on the top surface of the muffler box 3, and the L-shaped elbow of the first noise reduction hose 6 is connected to the inlet of the muffler box 3 from top to bottom. The filter air inlet 4 extends into the housing 1 with an upwardly bent extension pipe 41 (see...). Figure 1The other connector 62 of the first noise-reducing hose 6 is a straight connector, which is connected to the opening of the extension pipe 41. The inlet and outlet of the compression pump assembly 2 are located at the left and right ends of the compression pump assembly 2. The L-shaped elbow of the second noise-reducing hose 7 is connected to the inlet of the compression pump assembly 2, and the L-shaped elbow of the third noise-reducing hose 8 is connected to the outlet of the compression pump assembly 2.

[0044] The damping layer 22 is preferably composed of an elastic layer and a sponge layer. The elastic layer is on top and fits against the inner top surface of the shell 1 to provide a damping force, while the sponge layer is on the bottom and is honeycomb-shaped for sound absorption.

[0045] See Figure 1 and Figure 8 As shown, see details. Figure 6 The air outlet 5 is located on the upper shell 12. A groove is recessed at the outer end of the air outlet 5 on the upper shell, and the anti-collapse tube assembly 50 is connected to the groove. The anti-collapse tube assembly 50 consists of an anti-collapse tube connector 501, an anti-collapse tube connecting tube 502, and an anti-collapse tube adapter 503. The anti-collapse tube connector 501 is firmly connected by being inserted into the groove through a buckle. A through hole on the shell serves as the air outlet 5, and the through hole is located in the middle of the groove. A two-way connector 51 is inserted through the through hole. The two-way connector 51 is fastened to the upper shell 12 by a nut 52. The end of the two-way connector 51 facing the inner side of the shell is fitted with the pipe connector of the third noise reduction hose 8, while its outer end is inserted into the inner hole of the anti-collapse tube connector 501 and connected by a sealing ring.

[0046] See Figure 1 As shown, a push-button switch 70 is provided on the upper shell 12 next to the air outlet 5. The push-button switch 70 is connected to the power board 10 and / or the main control board 20 through internal wiring.

[0047] See Figure 10 As shown, the silencing box is sealed and connected by an upper box 31 and a lower cover 32. The upper box 31 has ribs inside, which cause the airflow sound waves to be reflected inside, reducing mid- and low-frequency noise.

[0048] The assembly process of the entire machine in this embodiment is as follows: The power cord is threaded through the through hole in the lower shell 11, and the wiring is fixed through the bottom slot of the lower shell 11. The four buffer pads 21 are assembled onto the outer bottom corner of the compressor pump assembly 2, and then it is placed on the lower shell 11. Furthermore, the main control board 20 and the power board 10 of the entire machine are respectively assembled on the two side plates 13 of the product through buckles and screws. The left and right side plates 13 are snapped onto the lower shell 11 through the slots. Furthermore, the inter-board wire 30 connects the main control board 20 and the power board 10, and then the switch wire is plugged in. The heat dissipation fan 9 is press-fitted through the slot of the lower shell 11. Tighten to the inside, the product wiring is arranged through the slot of the lower shell 11. Further, the silencer box 3 is assembled onto the lower shell 11 with screws, and the wiring is fixed at the same time (the silencer box 3 and the lower shell 11 are fixed on the wiring slot of the lower shell). Further, the product is connected to the filter air inlet 4 of the lower shell 11-the inlet of the silencer box 3, the outlet of the silencer box 3-the inlet of the compressor pump assembly 2, and the outlet of the compressor pump assembly 2-the outlet 5 of the upper shell 12 through the first noise reduction hose 6, the second noise reduction hose 7, and the third noise reduction hose 8, respectively. Finally, the upper shell 12 is covered, the fasteners are engaged, and the screws are tightened to complete the stacking and assembly of the whole machine.

[0049] This embodiment has the following advantages:

[0050] 1. Compared to the conventional internal layout of atomizers on the market, this solution has a compact internal layout and clear stacking logic, which can achieve high flow rate and low noise design in a small size.

[0051] 2. The internal design incorporates a multi-stage noise reduction scheme, utilizing impedance composite noise reduction to minimize the overall system noise level, reaching 40dB in actual operation.

[0052] 3. The whole machine adopts a DC brushless dual-cylinder compression pump and stacked layout scheme, which greatly improves the product life and performance;

[0053] 4. The entire unit adopts active cooling, with air intake from both sides and exhaust from the sides to remove heat, thus optimizing the overall temperature rise;

[0054] 5. The machine assembly adopts multiple interference fits, and fewer fasteners are used in the assembly of various parts, which greatly improves production efficiency.

[0055] 6. The product is designed with a quick-release filter assembly 40 and an anti-breakage tube assembly 50, which solves the problems of troublesome filter replacement 402, easy breakage due to frequent plugging and unplugging of the machine's air outlet 5, and easy breakage of the atomizing tube under high pressure, thus improving the user experience.

[0056] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A compression atomizer, comprising a housing (1), a compression pump assembly (2), a silencer box (3), and a heat dissipation fan (9), wherein the housing (1) is provided with a filter inlet (4) and an outlet (5); the filter inlet (4) is connected to the inlet of the compression pump assembly (2) via a pipeline through the silencer box (3), and the outlet of the compression pump assembly (2) is connected to the outlet (5) via a pipeline; characterized in that: The housing has a length direction and a width direction. The compression pump assembly is placed in the middle of the housing along the length direction of the housing. The housing (1) has a heat dissipation air inlet (131) on each of its left and right ends to be aligned with the ends of the compression pump assembly (2). The heat dissipation exhaust fan (9) is provided on the front or rear side of the compression pump assembly (2). The housing (1) has a heat dissipation air outlet (111) facing the heat dissipation exhaust fan (9), thereby forming a heat dissipation structure with air inlet at both ends and air outlet at the side.

2. The compression atomizer according to claim 1, characterized in that: The compression pump assembly (2) is a DC brushless dual-cylinder compression pump; the cooling exhaust fan (9) is positioned facing the outlet side cylinder of the DC brushless dual-cylinder compression pump.

3. The compression atomizer according to claim 1 or 2, characterized in that: The heat dissipation air inlet (131) is biased towards the bottom on the end face of the housing; the silencer box (3) is located on the front or rear side of the compressor pump assembly (2); the compressor atomizer also includes a power board (10) and a main control board (20), the power board (10) and the main control board (20) are respectively located on both ends of the compressor pump assembly (2) and avoid the heat dissipation air inlet (131), and the power board (10) and the main control board (20) are connected by an inter-board line (30).

4. The compression atomizer according to claim 1, characterized in that: The housing (1) is composed of a lower shell (11), an upper shell (12) and two side plates (13) assembled together. The two side plates (13) are positioned with the upper shell (12) and the lower shell (11) through slots. The upper shell and the lower shell are fastened together by screws inserted from top to bottom. So that during installation, the compressor pump assembly (2), the silencer box (3) and the heat dissipation fan (9) can be installed on the lower shell (11) first, then the two side plates (13) are placed, and finally the upper shell (12) is covered and the screws are tightened.

5. The compression atomizer according to claim 1 or 4, characterized in that: The filter inlet (4) has a recess (14) for installing a filter on the outer side of the housing (1). An air inlet hole (141) is opened in the middle of the recess (14). A filter assembly (40) is installed in the recess (14). The filter assembly (40) includes a filter cover (401), a filter element (402), and a sealing ring (403). A columnar body (4011) extends from the filter cover (401) into the housing (1). An air inlet channel (40111) is opened on the columnar body (4011). The channel (40111) is connected by multiple ventilation grooves (40112) on the outer periphery of the columnar body (4011) to the air inlet. The column (4011) has a central hole, and the end of the column (4011) is inserted into the air inlet (141). The sealing ring (403) is provided on the outer periphery of the end of the column (4011) to seal the column (4011) and the air inlet (141), so that the central hole of the column (4011) and the air inlet (141) are connected and communicated. The filter element (402) is annular and is press-fitted onto the column (4011) of the filter cover plate (401) to seal the multiple ventilation grooves (40112) on its outer periphery. The gap between the filter element (402) and the groove (14) serves as the air inlet gap, thereby forming an integrated assembly structure of the filter assembly.

6. The compression atomizer according to claim 5, characterized in that: The bottom of the compression pump assembly (2) is connected to the inner bottom surface of the housing (1) via a buffer pad (21), and its top is pressed and fitted by the inner top surface of the housing (1) via a damping layer (22).

7. The compression atomizer according to claim 6, characterized in that: The damping layer (22) is composed of an elastic layer and a sponge layer. The elastic layer is on top and fits against the inner top surface of the shell (1), while the sponge layer is on the bottom and is honeycomb-shaped for sound absorption.

8. The compression atomizer according to claim 6, characterized in that: The filter inlet (4) is connected to the inlet of the silencer box (3) via the first noise reduction hose (6), the outlet of the silencer box (3) is connected to the inlet of the compressor pump assembly (2) via the second noise reduction hose (7), and the outlet of the compressor pump assembly (2) is connected to the outlet (5) via the third noise reduction hose (8). The first noise reduction hose (6), the second noise reduction hose (7) and the third noise reduction hose (8) are all composed of two pipe joints (61, 62) and a hose (63) with a pipe hardness greater than 65HA connected between the two pipe joints (61, 62). The pipe diameter of the two pipe joints (61, 62) is larger than the pipe diameter of the hose (63), and at least one of the two pipe joints (61, 62) is an L-shaped elbow joint, thereby forming a resistance noise reduction structure with multiple changes in the channel cross-sectional area.

9. The compression atomizer according to claim 8, characterized in that: The inlet of the silencing box (3) is located on the top surface of the silencing box (3), and the L-shaped elbow of the first noise reduction hose (6) is connected to the inlet of the silencing box (3) from top to bottom.

10. The compression atomizer according to claim 9, characterized in that: The filter inlet (4) extends into the housing (1) and is provided with an upwardly bent extension tube (41). The other pipe joint (62) of the first noise reduction hose (6) is a direct connector, which is connected to the opening of the extension tube (41).

11. The compression atomizer according to claim 8, characterized in that: The inlet and outlet of the compression pump assembly (2) are located at the left and right ends of the compression pump assembly (2). The L-shaped elbow of the second noise reduction hose (7) is connected to the inlet of the compression pump assembly (2), and the L-shaped elbow of the third noise reduction hose (8) is connected to the outlet of the compression pump assembly (2).

12. The compression atomizer according to claim 1, characterized in that: A recess is formed on the outer surface of the housing (1) at the position corresponding to the heat dissipation air inlet (131), and the heat dissipation air inlet (131) is opened on the recess.

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