CN114576145B - Large-flow miniature air pump with noise reduction channel device - Google Patents
Large-flow miniature air pump with noise reduction channel device Download PDFInfo
- Publication number
- CN114576145B CN114576145B CN202210184113.6A CN202210184113A CN114576145B CN 114576145 B CN114576145 B CN 114576145B CN 202210184113 A CN202210184113 A CN 202210184113A CN 114576145 B CN114576145 B CN 114576145B
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- Prior art keywords
- retaining wall
- wall ring
- ring
- cover plate
- diaphragm
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- 230000009467 reduction Effects 0.000 title claims abstract description 16
- 239000012530 fluid Substances 0.000 claims abstract description 41
- 238000005086 pumping Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 8
- 230000003139 buffering effect Effects 0.000 claims description 7
- 230000006978 adaptation Effects 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
- F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
- F04B45/047—Pumps having electric drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Details Of Valves (AREA)
- Check Valves (AREA)
Abstract
The invention relates to a high-flow miniature air pump with a noise reduction channel device, which comprises an outlet cover plate (11), a valve seat (12), a diaphragm device (13) and a driving device (14), wherein the outlet cover plate (11) is provided with a fluid outlet (15), the diaphragm device (13) comprises diaphragms (131) which are uniformly distributed with a plurality of diaphragm bags (1311) and diaphragm seats (132) which are used for accommodating the diaphragms (131), the driving device (14) drives the diaphragms (131) to do circular reciprocating motion, and the diaphragm bags (1311) sequentially compress and stretch pumping fluid. The structure for guiding the airflow curve is realized, the airflow speed is buffered, the noise generated by the airflow is eliminated fundamentally, and the purpose of noise reduction of the air pump is achieved.
Description
Technical Field
The invention relates to a micro pump device, in particular to a micro high-flow diaphragm air pump with a noise reduction structure device, and especially relates to a high-flow micro air pump with a noise reduction channel device.
Background
The micro pump is widely used in daily life, and in the pumping transmission process of the pump, certain noise interference is usually generated, the experience effect of the daily life on the product quality is very influenced, so the noise reduction effect of the micro pump is that required by many micro pumps at present, the noise of the micro pump is solved by using a sound absorption device and the like at present, the method is more remarkable in treatment, because the sound source generating the noise is not necessarily positioned at one point, the large-scale sound absorption and insulation are realized, and the arrangement of the micro pump in volume and structure is not easy.
In particular, the air pump with larger flow has longer range of the air flow channel, the air flow speed reaches a certain order of magnitude, the generated air flow noise has larger range of the sound source, the noise is fundamentally avoided, and the air pump has larger advantages than the sound absorbing device.
Aiming at the problems of the defects, the invention adopts the following technical proposal for improvement.
Disclosure of Invention
The invention aims to provide a large-flow miniature air pump with a noise reduction channel device, and the disclosed technical scheme is as follows:
the utility model provides a miniature air pump of large-traffic with channel device falls in making an uproar, air pump (10) are including export apron (11), disk seat (12), diaphragm device (13) and drive arrangement (14), export apron (11) set up fluid outlet (15), diaphragm device (13) are including evenly distributed diaphragm (131) that are provided with a plurality of diaphragm bag (1311) and diaphragm seat (132) that adaptation placed diaphragm (131), drive arrangement (14) drive diaphragm (131) circular reciprocating motion, a plurality of diaphragm bag (1311) compress and tensile pumping fluid in proper order, its characterized in that the inside integrated into one piece of export apron (11) sets up the cylindricality retaining wall circle that is used for the buffering air current, retaining wall circle and export apron (11) coaxial orientation set up. The driving device (14) further comprises a motor (141) and an eccentric transmission mechanism (142), and a fluid inlet (143) arranged on the transmission mechanism shell.
Further, a first retaining wall ring (111) is arranged on the periphery of a fluid outlet (15) of the outlet cover plate (11), the valve seat (12) comprises a second retaining wall ring (122) arranged at the central part, and after the inner diameter and the outer diameter of the first retaining wall ring (111) and the outer diameter of the second retaining wall ring (122) are matched and sleeved, a side wall circulation gap is formed. After the outlet cover plate (11) and the valve seat (12) are buckled with each other, the second retaining wall ring (122) is respectively in non-contact sealing with the outlet cover plate (11), the first retaining wall ring (111) and the valve seat (12), and a gap for fluid circulation is reserved.
Further, the maximum diagonal length of the cross section of the second retaining wall ring (122) is smaller than that of the first retaining wall ring (111), and after the second retaining wall ring (122) is sleeved inside the first retaining wall ring (111), the first retaining wall ring (111) and the second retaining wall ring (122) form a circulation gap of the inner side wall and the outer side wall respectively. The fluid flows from the end gap of the first retaining wall ring (111) to the circulation gap formed by the inner and outer side walls of the first retaining wall ring (111) and the second retaining wall ring (122), then flows to the middle outlet channel cavity, fills the outlet cavity, and flows to the fluid outlet (15). And the prolonged and bent airflow channels reduce or eliminate noise generated by airflow after buffering the airflow speed. It is known that the air flow reaches a certain critical speed, and then the sound frequency audible to the human ear is generated, so that the air flow noise is generated, and the air flow speed is reduced through buffering, so that the air flow noise is reduced basically.
Further, the maximum diagonal length of the cross section of the second retaining wall ring (122) is greater than that of the first retaining wall ring (111), and after the second retaining wall ring (122) is sleeved outside the first retaining wall ring (111), the first retaining wall ring (111) and the second retaining wall ring (122) form a circulation gap of the inner side wall and the outer side wall respectively. The fluid flows from the end gap of the second retaining wall ring (122) to the circulation gap formed by the inner and outer side walls of the first retaining wall ring (111) and the second retaining wall ring (122), then flows to the middle outlet channel cavity, fills the outlet cavity, and flows to the fluid outlet (15). In the same way, the prolonged and bent airflow channels buffer and reduce the airflow speed, so as to reduce the airflow noise basically.
Further, one of the first retaining wall ring (111) and the second retaining wall ring (122) is an annular polygonal cylinder, and the other is an annular cylinder. When the radial dimension of the cylinder is designed to be just that the inside is in conflict, a plurality of fluid channels surrounded by a circular array are formed between the side faces of the edges formed by the polygonal body and the cylinder. In an optimal design, the annular polygonal column is an annular hexagonal column.
Further, the cylindrical retaining wall ring of the outlet cover plate (11) is arranged to be matched with the outlet device (121) arranged on the valve seat (12) to form a third retaining wall ring (112), the third retaining wall ring (112) comprises a guide notch (1121) for guiding fluid and a sealing ring (1122) matched and sealed with the outlet device (121) of the valve seat (12), and the guide direction of the guide notch (1121) is arranged to face the inner surface of the outer ring side wall of the outlet cover plate (11). The third retaining wall ring (112) is arranged to be a plurality of which are arrayed around the circle center of the outlet cover plate, the guide notch (1121) forms a circular array to guide the outer side wall ring of the outlet cover plate (11), and after the guide notch is blocked by the side wall, the whole outlet cover plate (11) is filled with circulating airflow to flow back. The third retaining wall ring (112) is configured as an annular polygonal cylinder, wherein the preferred embodiment is an annular hexagonal cylinder. The third retaining wall ring (112) and the outlet device (121) of the valve seat (12) are sealed to form an airflow flowing cavity, and the airflow is guided to the outer ring side wall of the outlet cover plate (11) through the guide notch (1121). The valve plate mounting holes (1212) on the boss (1211) and the fluid holes (1213) around the mounting holes can be arranged on the outlet devices (121) of the valve seat (12), the valve plate mounting holes further comprise umbrella-shaped valves (16) mounted on the boss (1211), the large-flow diaphragm pump is generally composed of a plurality of diaphragm bags, the plurality of outlet devices (121) on the corresponding valve seat (12) form circular array arrangement, all the guide notches (1121) form circular array guide outlet cover plates (11) outer side wall rings, after the guide notches are blocked by the side walls, circulation airflow is formed to fill the whole outlet cover plates (11) to flow back, the airflow flow is prolonged, the airflow speed is buffered, and airflow noise is reduced or eliminated basically.
The invention also discloses a noise reduction channel model of the pump, which comprises an outlet cover plate (11) and a valve seat (12) and is characterized in that a first retaining wall ring (111) is arranged at the periphery of a fluid outlet (15) of the outlet cover plate (11), the valve seat (12) comprises a second retaining wall ring (122) arranged at the central part, and after the inner diameter and the outer diameter of the first retaining wall ring (111) and the outer diameter of the second retaining wall ring (122) are matched and sleeved, a side wall circulation gap is formed.
Further, the maximum diagonal length of the cross section of the second retaining wall ring (122) is smaller than that of the first retaining wall ring (111), and after the second retaining wall ring (122) is sleeved inside the first retaining wall ring (111), the first retaining wall ring (111) and the second retaining wall ring (122) form a circulation gap of the inner side wall and the outer side wall respectively; or the maximum diagonal length of the cross section of the second retaining wall ring (122) is greater than that of the first retaining wall ring (111), and after the second retaining wall ring (122) is sleeved outside the first retaining wall ring (111), the first retaining wall ring (111) and the second retaining wall ring (122) form a circulation gap which is respectively an inner side wall and an outer side wall.
Further, one of the first retaining wall ring (111) and the second retaining wall ring (122) is an annular polygonal cylinder, and the other is an annular cylinder. In one of the solutions, the radial angular line length L of the annular polygonal cylinder is set equal to the radial diameter D of the annular cylinder. When the radial dimension of the cylinder is designed to be just that the inside is in conflict, a plurality of fluid channels surrounded by a circular array are formed between the side faces of the edges formed by the polygon and the cylinder. In an optimal design, the annular polygonal column is an annular hexagonal column.
The invention also discloses a noise reduction channel model of the pump, which comprises an outlet cover plate (11) and a valve seat (12), and is characterized in that a cylindrical retaining wall ring of the outlet cover plate (11) is arranged to be matched with a third retaining wall ring (112) of an outlet device (121) arranged on the valve seat (12), the third retaining wall ring (112) comprises a guide notch (1121) for guiding fluid and a sealing ring (1122) matched and sealed with the outlet device (121) of the valve seat (12), and the flow guiding direction of the guide notch (1121) is arranged to face the inner surface of the outer ring side wall of the outlet cover plate (11).
According to the technical scheme, the invention has the following beneficial effects:
1. in the air pump noise reduction structure, after the outlet cover plate and the valve seat are buckled with each other, the radial spacing between the first retaining wall ring of the outlet cover plate and the second retaining wall ring of the valve seat is different by arranging the outlet on the retaining wall ring, and the first retaining wall ring and the second retaining wall ring of the outlet cover plate are respectively not in contact with and sealed, and a gap for fluid circulation is reserved, so that a side wall circulation gap is formed, a structure for guiding an airflow curve is realized, the airflow speed is buffered, the noise generated by the airflow is basically eliminated, and the air pump noise reduction purpose is achieved;
2. in the air pump noise reduction structure, the third retaining wall ring is arranged on the outlet cover plate, the guide notch of the third retaining wall ring is used for guiding fluid to the inner surface of the outer ring side wall of the outlet cover plate, particularly a plurality of outlet devices form circular array arrangement, all the guide notches form circular array guide outlet cover plate outer side wall rings, after the guide notches are blocked by the side wall, circulating air flow is formed to fill the whole outlet cover plate for backflow, the air flow is prolonged, the air flow speed is buffered, and the air flow noise is reduced or eliminated basically.
Drawings
FIG. 1 is a schematic view of the overall structure of a pump according to a preferred embodiment of the present invention;
FIG. 2 is an exploded schematic view of a pump structure according to a preferred embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of the internal structure D-D of the pump according to the preferred embodiment of the present invention;
FIG. 4 is an exploded view showing the internal structure of the pump according to the preferred embodiment of the present invention;
FIG. 5 is an exploded view showing the internal structure of the pump according to the preferred embodiment of the present invention;
FIG. 6 is an enlarged schematic view of a section E-E of the internal structure of the pump according to the preferred embodiment of the present invention;
FIG. 7 is an enlarged schematic view of another part C-C of the cross-sectional view of the internal structure of the pump according to the preferred embodiment of the present invention;
FIG. 8 is an enlarged partial C-C schematic view of a cross-sectional view of the internal structure of the pump according to the preferred embodiment of the present invention;
FIG. 9 is a schematic illustration of a pump forming an air gap channel according to a preferred embodiment of the present invention;
in the figure, a pump 10, an outlet cover plate 11, a valve seat 12, a diaphragm device 13, a driving device 14, a fluid outlet 15 and an umbrella valve 16;
a first retaining wall ring 111, a third retaining wall ring 112;
outlet means 121, second retaining collar 122, boss 1211, valve plate mounting hole 1212, fluid hole 1213;
a diaphragm 131, a diaphragm seat 132, a diaphragm bladder 1311;
a motor 141, a transmission 142, a fluid inlet 143.
Detailed Description
The invention will be further described with reference to the drawings and detailed description.
As shown in fig. 1 to 3. The utility model provides a high-flow miniature air pump with channel device falls in making an uproar, air pump 10 includes outlet cover plate 11, disk seat 12, diaphragm device 13 and drive arrangement 14, outlet cover plate 11 sets up fluid outlet 15, diaphragm device 13 is including evenly distributed is provided with the diaphragm 131 of a plurality of diaphragm bag 1311 and the diaphragm seat 132 of adaptation placement diaphragm 131, drive arrangement 14 drives diaphragm 131 circumference reciprocating motion, a plurality of diaphragm bag 1311 compresses and stretches pumping fluid in proper order, its characterized in that outlet cover plate 11 inside integrated into one piece sets up the cylindricality barricade circle that is used for buffering the air current, barricade circle and outlet cover plate 11 coaxial setting. The drive 14 further comprises a motor 141 and an eccentric drive 142, and a fluid inlet 143 provided in the drive housing.
As shown in fig. 4, 5, 7 and 8, the periphery of the fluid outlet 15 of the outlet cover plate 11 is provided with a first retaining wall ring 111, the valve seat 12 includes a second retaining wall ring 122 disposed at the central portion, and after the inner and outer diameters of the first retaining wall ring 111 and the second retaining wall ring 122 are matched and sleeved, a sidewall circulation gap is formed. After the outlet cover plate 11 and the valve seat 12 are buckled with each other, the second retaining wall ring 122 is not in contact with and seals with the outlet cover plate 11, the first retaining wall ring 111 and the valve seat 12 respectively, and a gap for fluid circulation is reserved.
As shown in fig. 7, the maximum diagonal length of the cross section of the second retaining wall ring 122 is smaller than that of the first retaining wall ring 111, and after the second retaining wall ring 122 is sleeved inside the first retaining wall ring 111, the first retaining wall ring 111 and the second retaining wall ring 122 form a circulation gap of the inner and outer side walls respectively. The fluid flows from the end gap of the first retaining wall ring 111 to the circulation gap formed by the inner and outer side walls of the first retaining wall ring 111 and the second retaining wall ring 122, then flows to the middle outlet channel cavity, fills the outlet cavity, and flows to the fluid outlet 15. And the prolonged and bent airflow channels reduce or eliminate noise generated by airflow after buffering the airflow speed. It is known that the air flow reaches a certain critical speed, and then the sound frequency audible to the human ear is generated, so that the air flow noise is generated, and the air flow speed is reduced through buffering, so that the air flow noise is reduced basically.
As shown in fig. 8, the maximum diagonal length of the cross section of the second retaining wall ring 122 is greater than that of the first retaining wall ring 111, and after the second retaining wall ring 122 is sleeved outside the first retaining wall ring 111, the first retaining wall ring 111 and the second retaining wall ring 122 form a circulation gap of the inner and outer side walls respectively. The fluid flows from the end gap of the second retaining wall ring 122 to the circulation gap formed by the inner and outer side walls of the first retaining wall ring 111 and the second retaining wall ring 122, then flows to the middle outlet channel cavity, fills the outlet cavity, and flows to the fluid outlet 15. In the same way, the prolonged and bent airflow channels buffer and reduce the airflow speed, so as to reduce the airflow noise basically.
As shown in fig. 9, one of the first retaining wall ring 111 and the second retaining wall ring 122 is an annular polygonal cylinder, and the other is an annular cylinder. When the radial dimension of the cylinder is designed to be just that the inside is in conflict, a plurality of fluid channels surrounded by a circular array are formed between the side faces of the edges formed by the polygonal body and the cylinder. In an optimal design, the annular polygonal column is an annular hexagonal column.
As shown in fig. 4, 5 and 6, the cylindrical retaining wall ring of the outlet cover plate 11 is configured to be matched with the third retaining wall ring 112 of the outlet device 121 disposed on the valve seat 12, the third retaining wall ring 112 includes a guiding notch 1121 for guiding fluid and a sealing ring 1122 for sealing with the outlet device 121 of the valve seat 12, and the guiding direction of the guiding notch 1121 is set toward the inner surface of the outer ring side wall of the outlet cover plate 11. The third retaining wall 112 is arranged in a plurality of arrays around the center of the outlet cover plate, the guide notches 1121 form a circular array to guide the outer side wall ring of the outlet cover plate 11, and after the outer side wall ring is blocked, the whole outlet cover plate 11 is filled with the circulating air flow to flow back. The third retaining ring 112 is an annular polygonal cylinder, and the preferred embodiment is an annular hexagonal cylinder. The third retaining wall 112 seals with the outlet device 121 of the valve seat 12 to form an airflow cavity, and the airflow is guided to the outer side wall of the outlet cover plate 11 by the guiding notch 1121. The outlet devices 121 of the valve seat 12 can be arranged as a valve plate mounting hole 1212 on the boss 1211 and a plurality of fluid holes 1213 surrounding the mounting hole, and the valve seat further comprises a plurality of umbrella valves 16 mounted on the boss 1211, wherein the large-flow diaphragm pump is generally composed of a plurality of diaphragm bags, the outlet devices 121 on the corresponding valve seat 12 form a circular array arrangement, all the guide notches 1121 form a circular array guide outlet cover plate 11 outer side wall ring, after being blocked by the side wall, the circular flow air flows back through the whole outlet cover plate 11, the air flow is prolonged, the air flow speed is buffered, and the air flow noise is reduced or eliminated in principle.
As shown in fig. 4, 5, 7 and 8, an embodiment of a noise reduction channel model of a pump includes an outlet cover plate 11 and a valve seat 12, a first retaining wall ring 111 is disposed on the periphery of a fluid outlet 15 of the outlet cover plate 11, the valve seat 12 includes a second retaining wall ring 122 disposed at a central portion, and after inner and outer diameters of the first retaining wall ring 111 and the second retaining wall ring 122 are adapted to be sleeved, a sidewall circulation gap is formed.
The maximum diagonal length of the cross section of the second retaining wall ring 122 is smaller than that of the first retaining wall ring 111, and after the second retaining wall ring 122 is sleeved inside the first retaining wall ring 111, the first retaining wall ring 111 and the second retaining wall ring 122 form a circulation gap of two layers of side walls respectively; or the maximum diagonal length of the cross section of the second retaining wall ring 122 is greater than that of the first retaining wall ring 111, and after the second retaining wall ring 122 is sleeved outside the first retaining wall ring 111, the first retaining wall ring 111 and the second retaining wall ring 122 form a circulation gap of two layers of side walls respectively.
One of the first retaining wall ring 111 and the second retaining wall ring 122 is an annular polygonal cylinder, and the other is an annular cylinder. In one of the solutions, the radial angular line length L of the annular polygonal cylinder is set equal to the radial diameter D of the annular cylinder. When the radial dimension of the cylinder is designed to be just that the inside is in conflict, a plurality of fluid channels surrounded by a circular array are formed between the side faces of the edges formed by the polygon and the cylinder. In an optimal design, the annular polygonal column is an annular hexagonal column.
As shown in fig. 4 to 6, another embodiment of a noise reduction channel model of a pump includes an outlet cover plate 11 and a valve seat 12, wherein a cylindrical retaining wall ring of the outlet cover plate 11 is configured to be matched with a third retaining wall ring 112 of an outlet device 121 disposed on the valve seat 12, the third retaining wall ring 112 includes a guiding notch 1121 for guiding fluid and a sealing ring 1122 for sealing matched with the outlet device 121 of the valve seat 12, and a guiding direction of the guiding notch 1121 is set towards an inner surface of an outer ring side wall of the outlet cover plate 11.
The above is one embodiment of the present invention. In addition, it should be noted that all equivalent or simple changes of the structure, features and principles described in this patent conception are included in the scope of the present patent.
Claims (2)
1. The utility model provides a high-flow miniature air pump with channel device falls, includes outlet cover plate (11), disk seat (12), diaphragm device (13) and drive arrangement (14), outlet cover plate (11) set up fluid outlet (15), diaphragm device (13) are including evenly distributed diaphragm (131) and the diaphragm seat (132) that the adaptation placed diaphragm (131) that are provided with a plurality of diaphragm bag (1311), drive arrangement (14) drive diaphragm (131) circular reciprocating motion, a plurality of diaphragm bag (1311) compress and tensile pumping fluid in proper order, characterized in that outlet cover plate (11) inside integrated into one piece sets up the cylindricality retaining wall circle that is used for buffering the air current, retaining wall circle and outlet cover plate (11) coaxial setting;
the periphery of a fluid outlet (15) of the outlet cover plate (11) is provided with a first retaining wall ring (111), the valve seat (12) comprises a second retaining wall ring (122) arranged at the central part, and after the inner diameter and the outer diameter of the first retaining wall ring (111) and the second retaining wall ring (122) are matched and sleeved, a side wall circulation gap is formed; the maximum diagonal length of the cross section of the second retaining wall ring (122) is smaller than that of the first retaining wall ring (111), and after the second retaining wall ring (122) is sleeved inside the first retaining wall ring (111), the first retaining wall ring (111) and the second retaining wall ring (122) form a circulation gap which is respectively an inner side wall and an outer side wall; or the maximum diagonal length of the cross section of the second retaining wall ring (122) is larger than that of the first retaining wall ring (111), and after the second retaining wall ring (122) is sleeved outside the first retaining wall ring (111), the first retaining wall ring (111) and the second retaining wall ring (122) form a circulation gap which is respectively an inner side wall and an outer side wall;
and the cylindrical retaining wall ring of the outlet cover plate (11) is arranged to be matched with the outlet device (121) arranged on the valve seat (12) to form a third retaining wall ring (112), the third retaining wall ring (112) comprises a guide notch (1121) for guiding fluid and a sealing ring (1122) matched and sealed with the outlet device (121) of the valve seat (12), and the guide direction of the guide notch (1121) is arranged to face the inner surface of the outer ring side wall of the outlet cover plate (11).
2. A high flow miniature air pump with noise reduction channel device according to claim 1, characterized in that one of said first retaining wall ring (111) and second retaining wall ring (122) is an annular polygonal cylinder and one is an annular cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210184113.6A CN114576145B (en) | 2022-02-28 | 2022-02-28 | Large-flow miniature air pump with noise reduction channel device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210184113.6A CN114576145B (en) | 2022-02-28 | 2022-02-28 | Large-flow miniature air pump with noise reduction channel device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114576145A CN114576145A (en) | 2022-06-03 |
| CN114576145B true CN114576145B (en) | 2024-01-16 |
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ID=81777705
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210184113.6A Active CN114576145B (en) | 2022-02-28 | 2022-02-28 | Large-flow miniature air pump with noise reduction channel device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114576145B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016037492A1 (en) * | 2014-09-12 | 2016-03-17 | 厦门科际精密器材有限公司 | Air pump |
| CN111412125A (en) * | 2019-01-05 | 2020-07-14 | 厦门宏发汽车电子有限公司 | Electronic vacuum pump with noise reduction waterproof cap and air outlet groove for electronic vacuum pump |
| CN211852126U (en) * | 2019-12-13 | 2020-11-03 | 厦门科际精密器材有限公司 | Miniature air pump |
| CN112727737A (en) * | 2020-12-30 | 2021-04-30 | 厦门坤锦电子科技有限公司 | Noise reduction silencing cover for air pump and vertical eccentric rotary diaphragm pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3093492B1 (en) * | 2013-10-25 | 2019-09-11 | Xiamen Koge Micro Tech Co., Ltd | Valve clack and air pump having same |
-
2022
- 2022-02-28 CN CN202210184113.6A patent/CN114576145B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016037492A1 (en) * | 2014-09-12 | 2016-03-17 | 厦门科际精密器材有限公司 | Air pump |
| CN111412125A (en) * | 2019-01-05 | 2020-07-14 | 厦门宏发汽车电子有限公司 | Electronic vacuum pump with noise reduction waterproof cap and air outlet groove for electronic vacuum pump |
| CN211852126U (en) * | 2019-12-13 | 2020-11-03 | 厦门科际精密器材有限公司 | Miniature air pump |
| CN112727737A (en) * | 2020-12-30 | 2021-04-30 | 厦门坤锦电子科技有限公司 | Noise reduction silencing cover for air pump and vertical eccentric rotary diaphragm pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114576145A (en) | 2022-06-03 |
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