CN205349676U - Piezoelectricity micro air pump structure - Google Patents
Piezoelectricity micro air pump structure Download PDFInfo
- Publication number
- CN205349676U CN205349676U CN201521082726.0U CN201521082726U CN205349676U CN 205349676 U CN205349676 U CN 205349676U CN 201521082726 U CN201521082726 U CN 201521082726U CN 205349676 U CN205349676 U CN 205349676U
- Authority
- CN
- China
- Prior art keywords
- oscillating plate
- shell body
- hole
- gas outlet
- pump chamber
- 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.)
- Active
Links
Landscapes
- Reciprocating Pumps (AREA)
Abstract
The utility model discloses a piezoelectricity micro air pump structure, including shell body, pump chamber, a vibrating structure and the 2nd vibrating structure. Be equipped with gas outlet and air inlet on the shell body. The pump chamber sets up in the shell body inner chamber, the pump chamber with the shell body links to each other, the pump chamber is provided with first through -hole. First through -hole sets up with the gas outlet relatively. A vibrating structure and the 2nd vibrating structure set up respectively in the pump chamber both sides. A vibrating structure is provided with the exhaust passage. The exhaust passage with the gas outlet sets up relatively. The utility model discloses the shell body can be protected with the pump chamber the vibrating structure in its cavity, the 2nd vibrating structure. Secondly, can make the interior gas of pump chamber pass through first through -hole, exhaust passage and gas outlet and discharge to in external environment, so just, can realize producing high pressure, high -velocity air phenomenon in gas outlet department.
Description
Technical field
This utility model relates to piezo-electric device field, especially relates to a kind of piezoelectric micromotor air pump structure.
Background technology
Piezoelectricity declines air pump, mainly utilizes the inverse piezoelectric effect of piezoelectric ceramics, the signal of telecommunication drive and be converted to mechanical deformation, cause that in confined space, gas volume changes rapidly, produce high pressure, high velocity air at small venthole, utilize Venturi effect, produce stable air-flow output.
For the existing piezoelectric micromotor air pump utilizing Venturi effect, a vibrational structure only it is connected to outside pump chamber in its device, and realizing expanding or shrinking of pump chamber inner chamber body by this vibrational structure energising so that in air flow source pore, the gas of ejection can not efficiently spray.
Summary of the invention
Based on this, this utility model is in that to overcome the defect of prior art, it is provided that a kind of piezoelectric micromotor air pump structure that can be effectively improved air pump tolerance and air pressure.
Its technical scheme is as follows:
A kind of piezoelectric micromotor air pump structure, including: shell body, described shell body is provided with gas outlet and air inlet, and described shell body inner chamber is communicated with external environment by described gas outlet, described air inlet；Pump chamber, described pump chamber is arranged in described shell body inner chamber, and described pump chamber is connected with described shell body, and described pump chamber is provided with the first through hole, described pump chamber inner chamber is communicated with described shell body inner chamber by described first through hole, and described first through hole and described gas outlet are oppositely arranged；And first vibrational structure and the second vibrational structure, described first vibrational structure and described second vibrational structure are separately positioned on described pump chamber both sides, and described first vibrational structure is provided with exhaust passage, and described exhaust passage and described gas outlet are oppositely arranged.
Wherein in an embodiment, described first through hole, described exhaust passage and described gas outlet are coaxially disposed.
Wherein in an embodiment, and the aperture of described first through hole is less than the internal diameter of described exhaust passage.
Wherein in an embodiment, described pump chamber includes the first oscillating plate, the second oscillating plate and a pushing out ring, described pushing out ring includes annular slab and is connected to the support member of described annular slab sidepiece with several, described support member is connected with described shell body, described first oscillating plate, described second oscillating plate and described annular slab stack together, and described first oscillating plate, described second oscillating plate lay respectively at described annular slab both sides, described first oscillating plate is provided with described first through hole.
Wherein in an embodiment, described first vibrational structure includes the 3rd oscillating plate and the first silver strip, described 3rd oscillating plate and described first silver strip are stacked on described first oscillating plate, described 3rd oscillating plate and described first silver strip offer the second through hole and third through-hole respectively, and described second through hole communicates with described third through-hole and forms described exhaust passage.
Wherein in an embodiment, described second vibrational structure includes the 4th oscillating plate and the second silver strip, and described 4th oscillating plate and described second silver strip are stacked on described second oscillating plate.
Wherein in an embodiment, described first oscillating plate, the second oscillating plate, the 3rd oscillating plate and described 4th oscillating plate are metal material.
Wherein in an embodiment, the air inlet on described shell body and described gas outlet are oppositely arranged, and the internal diameter of described shell body inner chamber is gradually reduced on the direction of described air inlet to described gas outlet.
Wherein in an embodiment, described shell body is provided with cover plate, and described cover plate and described shell body removably connect, and described cover plate is provided with described air inlet.
Below in conjunction with technique scheme, principle of the present utility model, effect are further illustrated:
1, above-mentioned piezoelectric micromotor air pump structure, first, the first vibrational structure in its cavity, the second vibrational structure can be protected by shell body with pump chamber；Secondly, after first vibrational structure and the second vibrational structure rightabout vibrate simultaneously, pump chamber inner chamber body can be made to expand or shrink, reduce in process in pump chamber inner chamber body, enable to pump indoor gas and be expelled in external environment by the first through hole, exhaust passage and gas outlet, so just can realize producing at gas outlet place high pressure, high velocity air phenomenon.
2, being coaxially disposed in the first through hole, exhaust passage and gas outlet, reduce in process in pump chamber inner chamber body, air-flow just sprays from the first through hole, described exhaust passage and described gas outlet linearly formula.Gas emission direction is concentrated, and the spouting velocity of air-flow is fast, and the air pressure of air-flow is higher.Owing to the internal diameter of exhaust passage is bigger than the first through-hole aperture, when in pump chamber inner chamber body expansion process, pump chamber air-breathing, gas enters from shell body air inlet, and through exhaust passage, the first through hole enter in pump chamber, now air vent is unaffected.
3, the first silver strip and the second silver strip are after the voltage applying certain frequency, due to inverse piezoelectric effect, first silver strip and the second silver strip can produce radial contraction deformation, and the first silver strip and the second silver strip are connected with the 3rd oscillating plate and the 4th vibration respectively, and radial contraction just converts to and bends up or down.Thus by the both positive and negative polarity set-up mode controlling the first silver strip and the second silver strip, can cause that the first silver strip and the second silver strip bend or back-flexing in opposite directions, to realize pump chamber inner chamber body contraction or expansion.
Accompanying drawing explanation
Fig. 1 is piezoelectric micromotor air pump structure schematic diagram described in this utility model embodiment；
Fig. 2 is piezoelectric micromotor air pump decomposition chart described in this utility model embodiment.
Description of reference numerals:
10, shell body, 11, gas outlet, 12, cover plate, 121, air inlet, 20, pump chamber, the 21, first oscillating plate, the 211, first through hole, 22, the second oscillating plate, 23, pushing out ring, 231, annular slab, 232, support member, the 30, first vibrational structure, the 31, the 3rd oscillating plate, 311, the second through hole, the 32, first silver strip, 321, third through-hole, 40, the second vibrational structure, the 41, the 4th oscillating plate, the 42, second silver strip.
Detailed description of the invention
Below embodiment of the present utility model is described in detail:
As shown in Figure 1, 2, the piezoelectric micromotor air pump structure described in this utility model embodiment, including shell body 10, pump chamber the 20, first vibrational structure 30 and the second vibrational structure 40.
Described shell body 10 is provided with gas outlet 11 and air inlet 121.Described shell body 10 inner chamber body is communicated with external environment by described gas outlet 11, described air inlet 121.Described pump chamber 20 is arranged in described shell body 10 inner chamber body, and described pump chamber 20 is connected with described shell body 10, and described pump chamber 20 is provided with the first through hole 211, and described pump chamber 20 inner chamber is communicated with described shell body 10 inner chamber by described first through hole 211.Described first through hole 211 is oppositely arranged with described gas outlet 11.Described first vibrational structure 30 is separately positioned on described pump chamber 20 both sides with described second vibrational structure 40.Described first vibrational structure 30 is provided with exhaust passage.Described exhaust passage and described gas outlet 11 are oppositely arranged.
Above-mentioned piezoelectric micromotor air pump structure, first, first vibrational structure the 30, second vibrational structure 40 in its cavity can be protected by shell body 10 with pump chamber 20；Secondly, after first vibrational structure 30 and the second vibrational structure 40 rightabout vibrate simultaneously, pump chamber 20 inner chamber body can be made to expand or shrink, reduce in process in pump chamber 20 inner chamber body, enable to gas in pump chamber 20 and be expelled in external environment by the first through hole 211, exhaust passage and gas outlet 11, so just can realize spraying at gas outlet 11 place high pressure, high velocity air.
Wherein, the first through hole 211, exhaust passage and gas outlet 11 are coaxially disposed.So reducing in process in pump chamber 20 inner chamber body, air-flow sprays from the first through hole 211, described exhaust passage and described gas outlet 11 orthoscopic, and gas emission direction is concentrated, and the spouting velocity of air-flow is fast, and the air pressure of air-flow is higher.Owing to the internal diameter of exhaust passage is bigger than the first through hole 211 aperture, when in pump chamber 20 inner chamber body expansion process, pump chamber 20 air-breathing, gas enters from shell body 10 air inlet 121, and through exhaust passage, the first through hole 211 enter in pump chamber 20, now air vent is unaffected.
Described pump chamber 20 includes first oscillating plate the 21, second oscillating plate 22 and a pushing out ring 23.Described pushing out ring 23 includes annular slab 231 and is connected to the support member 232 of described annular slab 231 sidepiece with several.Described support member 232 is connected with described shell body 10.Described first oscillating plate 21, described second oscillating plate 22 and described annular slab 231 stack together.And described first oscillating plate 21, described second oscillating plate 22 lay respectively at described annular slab 231 both sides, described first oscillating plate 21 is provided with described first through hole 211.
Described first vibrational structure 30 includes the 3rd oscillating plate 31 and the first silver strip 32.Described 3rd oscillating plate 31 is stacked on described first oscillating plate 21 with described first silver strip 32.Described 3rd oscillating plate 31 offers the second through hole 311 and third through-hole 321 respectively with described first silver strip 32.Described second vibrational structure 40 includes the 4th oscillating plate 41 and the second silver strip 42.Described 4th oscillating plate 41 is stacked on described second oscillating plate 22 with described second silver strip 42.Wherein, described first oscillating plate the 21, second oscillating plate the 22, the 3rd oscillating plate 31 and described 4th oscillating plate 41 are metal material.Described second through hole 311 communicates with described third through-hole 321 and forms described exhaust passage.First silver strip 32 and the second silver strip 42 are after the voltage applying certain frequency, due to inverse piezoelectric effect, first silver strip 32 and the second silver strip 42 can produce radial contraction deformation, first silver strip 32 is connected with the 4th vibration with the 3rd oscillating plate 31 respectively with the second silver strip 42, and the radial contraction of the first silver strip 32 and the second silver strip 42 just converts to and bends up or down.Thus by the both positive and negative polarity set-up mode controlling the first silver strip 32 and the second silver strip 42, can cause that the first silver strip 32 and the second silver strip 42 bend or back-flexing in opposite directions, to realize pump chamber 20 inner chamber body contraction or expansion.
Air inlet 121 on described shell body 10 is oppositely arranged with described gas outlet 11.The internal diameter of described shell body 10 inner chamber body is gradually reduced on the direction of described air inlet 121 to described gas outlet 11.Described shell body 10 is provided with cover plate 12.Described cover plate 12 removably connects with described shell body 10, and described cover plate 12 is provided with described air inlet 121.So, after opening cover plate 12, easy disassembly pump chamber the 20, first vibrational structure 30 and the second vibrational structure 40.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics is absent from contradiction, all it is considered to be the scope that this specification is recorded.
Embodiment described above only have expressed several embodiments of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that, for the person of ordinary skill of the art, without departing from the concept of the premise utility, it is also possible to make some deformation and improvement, these broadly fall into protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be as the criterion with claims.
Claims (9)
1. a piezoelectric micromotor air pump structure, it is characterised in that including:
Shell body, described shell body is provided with gas outlet and air inlet, and described shell body inner chamber is communicated with external environment by described gas outlet, described air inlet；
Pump chamber, described pump chamber is arranged in described shell body inner chamber, and described pump chamber is connected with described shell body, and described pump chamber is provided with the first through hole, described pump chamber inner chamber is communicated with described shell body inner chamber by described first through hole, and described first through hole and described gas outlet are oppositely arranged；And
First vibrational structure and the second vibrational structure, described first vibrational structure and described second vibrational structure are separately positioned on described pump chamber both sides, and described first vibrational structure is provided with exhaust passage, and described exhaust passage and described gas outlet are oppositely arranged.
2. piezoelectric micromotor air pump structure according to claim 1, it is characterised in that described first through hole, described exhaust passage and described gas outlet are coaxially disposed.
3. piezoelectric micromotor air pump structure according to claim 1, it is characterised in that the aperture of described first through hole is less than the internal diameter of described exhaust passage.
4. piezoelectric micromotor air pump structure according to claim 1, it is characterized in that, described pump chamber includes the first oscillating plate, the second oscillating plate and a pushing out ring, described pushing out ring includes annular slab and is connected to the support member of described annular slab sidepiece with several, described support member is connected with described shell body, described first oscillating plate, described second oscillating plate and described annular slab stack together, and described first oscillating plate, described second oscillating plate lay respectively at described annular slab both sides, described first oscillating plate is provided with described first through hole.
5. piezoelectric micromotor air pump structure according to claim 4, it is characterized in that, described first vibrational structure includes the 3rd oscillating plate and the first silver strip, described 3rd oscillating plate and described first silver strip are stacked on described first oscillating plate, described 3rd oscillating plate and described first silver strip offer the second through hole and third through-hole respectively, and described second through hole communicates with described third through-hole and forms described exhaust passage.
6. piezoelectric micromotor air pump structure according to claim 5, it is characterised in that described second vibrational structure includes the 4th oscillating plate and the second silver strip, and described 4th oscillating plate and described second silver strip are stacked on described second oscillating plate.
7. piezoelectric micromotor air pump structure according to claim 6, it is characterised in that described first oscillating plate, the second oscillating plate, the 3rd oscillating plate and described 4th oscillating plate are metal material.
8. piezoelectric micromotor air pump structure according to claim 1, it is characterised in that the air inlet on described shell body and described gas outlet are oppositely arranged, the internal diameter of described shell body inner chamber is gradually reduced on the direction of described air inlet to described gas outlet.
9. piezoelectric micromotor air pump structure according to claim 1, it is characterised in that described shell body is provided with cover plate, and described cover plate and described shell body removably connect, and described cover plate is provided with described air inlet.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521082726.0U CN205349676U (en) | 2015-12-21 | 2015-12-21 | Piezoelectricity micro air pump structure |
| PCT/CN2016/076684 WO2017059660A1 (en) | 2015-10-08 | 2016-03-18 | Miniature piezoelectric air pump structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521082726.0U CN205349676U (en) | 2015-12-21 | 2015-12-21 | Piezoelectricity micro air pump structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205349676U true CN205349676U (en) | 2016-06-29 |
Family
ID=56170062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521082726.0U Active CN205349676U (en) | 2015-10-08 | 2015-12-21 | Piezoelectricity micro air pump structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205349676U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109424522A (en) * | 2017-08-31 | 2019-03-05 | 研能科技股份有限公司 | Air transporting arrangement |
| CN109723627A (en) * | 2017-10-27 | 2019-05-07 | 研能科技股份有限公司 | Air transporting arrangement |
| CN110043452A (en) * | 2019-04-26 | 2019-07-23 | 常州威图流体科技有限公司 | A kind of novel piezoelectric Micropump |
-
2015
- 2015-12-21 CN CN201521082726.0U patent/CN205349676U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109424522A (en) * | 2017-08-31 | 2019-03-05 | 研能科技股份有限公司 | Air transporting arrangement |
| CN109723627A (en) * | 2017-10-27 | 2019-05-07 | 研能科技股份有限公司 | Air transporting arrangement |
| CN110043452A (en) * | 2019-04-26 | 2019-07-23 | 常州威图流体科技有限公司 | A kind of novel piezoelectric Micropump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107923385A (en) | Air blower | |
| CN208456828U (en) | Micro pressure power device | |
| JP5773623B2 (en) | Low frequency synthetic jet actuator | |
| CN205349676U (en) | Piezoelectricity micro air pump structure | |
| JP6052475B2 (en) | Fluid control device | |
| US8492957B2 (en) | Apparatus for generating electric energy | |
| JP5333012B2 (en) | Micro blower | |
| CN103220608B (en) | Speaker module | |
| WO2009148005A1 (en) | Piezoelectric microblower | |
| JPWO2009050990A1 (en) | Piezoelectric micro blower | |
| TW201610298A (en) | Micro-gas pressure driving apparatus | |
| CN102896064A (en) | Piezoelectric ceramic ultrasonic atomization sheet | |
| EP3431762B1 (en) | Acoustic cavity tailored synthetic jet | |
| JP2007518910A (en) | Medium flow generator | |
| CN107801133A (en) | Microphone device | |
| CN205445973U (en) | Piezoelectricity micro air pump structure | |
| CN102395093A (en) | Silicic miniature microphone | |
| JP7107684B2 (en) | air motor | |
| WO2011004124A3 (en) | Microsystem for generating a synthetic jet, corresponding manufacturing method and device for flow control | |
| US8931714B1 (en) | Apparatus and method for an improved synthetic jet actuator | |
| CN105657616A (en) | Loudspeaker module | |
| CN108311361A (en) | Micro electronmechanical piezoelectric supersonic wave transducer with the modality-specific vibration shape | |
| CN203167258U (en) | Vibrating diaphragm for loudspeaker and loudspeaker | |
| CN103056060B (en) | Controlled resonant supersonic gas nozzle | |
| CN201477899U (en) | Radiating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |