CN201125858Y - Low noise miniature air pump - Google Patents
Low noise miniature air pump Download PDFInfo
- Publication number
- CN201125858Y CN201125858Y CNU2007201712738U CN200720171273U CN201125858Y CN 201125858 Y CN201125858 Y CN 201125858Y CN U2007201712738 U CNU2007201712738 U CN U2007201712738U CN 200720171273 U CN200720171273 U CN 200720171273U CN 201125858 Y CN201125858 Y CN 201125858Y
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- CN
- China
- Prior art keywords
- air
- loam cake
- air outlet
- noise
- sub
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a low-noise miniature air pump which comprises a top cover (10) that is provided with an air outlet opening (12) penetrating the top cover (10) at the middle part. A plurality of air distributing chambers are provided on the surface of the top cover (10) at the place surrounding the air outlet opening (12). The place between each air distributing chamber (11) and the air outlet opening (12) and the place between two adjacent air distributing chambers (11) are equally divided by the obstruct areas (13) which are provided with a plurality of strips of noise-reducing air current channels (14) that are curved and communicate between the air outlet openings (12) and the corresponding air distributing chambers (11). According to the utility model, through installing a plurality of noise reducing air current channels which communicate between the air outlet opening and the corresponding air distributing chamber on the obstructs that are used for obstructing each air distributing chamber and obstructing between the air distributing chambers and the air outlet openings, the air current with noise is functioned by the noise-reducing air current channel and the air distributing chambers in the course from the air distributing chamber to the air outlet opening to attenuate the noise in the air current, and thereby the noise is low and the output air current is stable.
Description
Technical field
The utility model relates to micro air pump.
Background technique
Micro air pump all is widely used on such as products such as electronic sphygmomanometers, it is generally by motor, bottom, eccentric rubber tire, continuous motion stem, rocker, cylinder body, leather cup, valve plate, glue fourth and loam cake constitute, its bottom is fixed on motor and has on the end face of an end of output shaft, bottom, cylinder body, leather cup, valve plate links to each other successively with loam cake, eccentric rubber tire is fixed on the output shaft of motor, continuous motion stem is connected between eccentric rubber tire and the rocker, rocker links to each other with leather cup, the glue fourth is positioned at loam cake, the loam cake middle part is provided with the air outlet of running through described loam cake, and be provided with the sub-air chamber of several depressions around gas port in the bottom surface of loam cake, and described sub-air chamber is directly to communicate with the air outlet, does not establish any sound-deadening and noise-reducing structure between the two.When work, the high speed to-and-fro motion in pump of its leather cup and glue fourth makes air promptly directly feed air outlet by the sub-air chamber of loam cake without noise reduction with the form that has noise and outwards exports, so there is the big and unsettled shortcoming of output gas flow of noise in it, it mainly is quietly to use in the environment in ward etc. in addition, and its noise is tiredly made an uproar and brought negative influence just more outstanding to environment to what the people brought greatly.
The model utility content
Technical problem to be solved in the utility model is: provide a kind of noise little, the low noise micro air pump that output gas flow is stable.
For solving the problems of the technologies described above, the utility model adopts following technological scheme: a kind of low noise micro air pump, comprise a loam cake (10), described loam cake (10) middle part is provided with the air outlet (12) of running through described loam cake (10), and be provided with the sub-air chamber (11) of several depressions around gas port (12) in the bottom surface of loam cake (10), separate out by cutting off (13) between each sub-air chamber (11) and air outlet (12) and between adjacent two sub-air chamber (11), on described partition (13), be provided with some and be kink shape and be communicated with air outlet (12) and the noise reduction air-flow path (14) of corresponding sub-air chamber (11).
The beneficial effects of the utility model are: be provided with some on the partition of each sub-air chamber and sub-air chamber and air outlet and be kink shape and be communicated with the air outlet and the noise reduction air-flow path of corresponding sub-air chamber owing to be used for separating in the loam cake bottom surface, the air-flow that has noise is being entered by sub-air chamber in the process of air outlet, the sound attenuation that air-flow is had by noise reduction air-flow path and sub-air chamber's acting in conjunction, so its noise is little, output gas flow is stable.
Below in conjunction with accompanying drawing the utility model is described in further detail.
Description of drawings
Fig. 1 is the utility model embodiment ssembly drawing;
Fig. 2 is the utility model embodiment loam cake stereogram.
Embodiment
As depicted in figs. 1 and 2, the utility model embodiment is made of motor 1, bottom 2, eccentric rubber tire 3, continuous motion stem 4, rocker 5, cylinder body 6, leather cup 7, valve plate 8, glue fourth 9 and loam cake 10, its bottom 2 is fixed on motor 1 and has on the end face of an end of output shaft, bottom 2, cylinder body 6, leather cup 7, valve plate 8 and loam cake 10 link to each other successively, eccentric rubber tire 3 is fixed on the output shaft of motor 1, continuous motion stem 4 is connected between eccentric rubber tire 3 and the rocker 5, and rocker 5 links to each other with leather cup 7, and glue fourth 9 is positioned at loam cake 10.Loam cake 10 middle parts are provided with the air outlet 12 of running through described loam cake 10, and the bottom surface at loam cake 10 is ccontaining for the top of glue fourth 9 around the sub-air chamber 11 that gas port 12 is provided with several depressions, separate out by cutting off 13 between each sub-air chamber 11 and the air outlet 12 and between the two adjacent sub-air chamber 11, on described partition 13, be provided with some the noise reduction air-flow paths 14 that are kink shape and are communicated with air outlet 12 and corresponding sub-air chamber 11.Noise reduction air-flow path 14 is "T"-shaped, comprises the vertical passageway of the middle part perforation of crosspassage and an end and crosspassage, and described crosspassage two ends communicate with adjacent two sub-air chamber 11 respectively, and the other end of vertical passageway communicates with air outlet 12.The bottom surface of loam cake 10 is provided with fillet triangle convex ring edge 15.Valve plate 8 is provided with the fillet triangle annular groove 16 that snaps in for the convex ring edge 15 on described loam cake 10 bottom surfaces, thereby loam cake 10 is cooperated with valve plate 8 location.
Claims (4)
1, a kind of low noise micro air pump, comprise a loam cake (10), described loam cake (10) middle part is provided with the air outlet (12) of running through described loam cake (10), and be provided with the sub-air chamber (11) of several depressions around gas port (12) in the bottom surface of loam cake (10), it is characterized in that: separate out by cutting off (13) between each sub-air chamber (11) and air outlet (12) and between adjacent two sub-air chamber (11), on described partition (13), be provided with some and be kink shape and be communicated with air outlet (12) and the noise reduction air-flow path (14) of corresponding sub-air chamber (11).
2, low noise micro air pump as claimed in claim 1, it is characterized in that: every described noise reduction air-flow path (14) is for "T"-shaped, the vertical passageway that comprises the middle part perforation of crosspassage and an end and crosspassage, described crosspassage two ends communicate with adjacent two sub-air chamber (11) respectively, and the other end of vertical passageway communicates with air outlet (12).
3, low noise micro air pump as claimed in claim 1 is characterized in that: the bottom surface of described loam cake (10) is provided with fillet triangle convex ring edge (15).
4, low noise micro air pump as claimed in claim 3 is characterized in that: described low noise micro air pump also comprises a valve plate (8), and described valve plate (8) is provided with the fillet triangle annular groove (16) that snaps in for the convex ring edge (15) on described loam cake (10) bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201712738U CN201125858Y (en) | 2007-11-30 | 2007-11-30 | Low noise miniature air pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201712738U CN201125858Y (en) | 2007-11-30 | 2007-11-30 | Low noise miniature air pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201125858Y true CN201125858Y (en) | 2008-10-01 |
Family
ID=39999327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201712738U Expired - Fee Related CN201125858Y (en) | 2007-11-30 | 2007-11-30 | Low noise miniature air pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201125858Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915229A (en) * | 2010-06-02 | 2010-12-15 | 常州市昊升电机有限公司 | Labyrinth silencing air output assembly for micro air pump |
| CN103486011A (en) * | 2012-06-12 | 2014-01-01 | 藤仓橡胶工业株式会社 | Electromagnetic diaphragm pump |
| WO2016037492A1 (en) * | 2014-09-12 | 2016-03-17 | 厦门科际精密器材有限公司 | Air pump |
| CN105464935A (en) * | 2014-09-12 | 2016-04-06 | 厦门科际精密器材有限公司 | Air pump |
| CN107654353A (en) * | 2016-07-25 | 2018-02-02 | 厦门科际精密器材有限公司 | Air pump |
-
2007
- 2007-11-30 CN CNU2007201712738U patent/CN201125858Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915229A (en) * | 2010-06-02 | 2010-12-15 | 常州市昊升电机有限公司 | Labyrinth silencing air output assembly for micro air pump |
| CN101915229B (en) * | 2010-06-02 | 2012-08-22 | 常州市昊升电机有限公司 | Labyrinth silencing air output assembly for micro air pump |
| CN103486011A (en) * | 2012-06-12 | 2014-01-01 | 藤仓橡胶工业株式会社 | Electromagnetic diaphragm pump |
| CN103486011B (en) * | 2012-06-12 | 2016-08-17 | 藤仓橡胶工业株式会社 | Eletromagnetic diaphragm pump |
| WO2016037492A1 (en) * | 2014-09-12 | 2016-03-17 | 厦门科际精密器材有限公司 | Air pump |
| CN105464935A (en) * | 2014-09-12 | 2016-04-06 | 厦门科际精密器材有限公司 | Air pump |
| CN107654353A (en) * | 2016-07-25 | 2018-02-02 | 厦门科际精密器材有限公司 | Air pump |
| CN107654353B (en) * | 2016-07-25 | 2019-04-19 | 厦门科际精密器材有限公司 | Air pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081001 Termination date: 20141130 |
|
| EXPY | Termination of patent right or utility model |