CN205445973U - Piezoelectricity micro air pump structure - Google Patents
Piezoelectricity micro air pump structure Download PDFInfo
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- CN205445973U CN205445973U CN201620147005.1U CN201620147005U CN205445973U CN 205445973 U CN205445973 U CN 205445973U CN 201620147005 U CN201620147005 U CN 201620147005U CN 205445973 U CN205445973 U CN 205445973U
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- oscillating plate
- vibrational structure
- shell body
- hole
- gas outlet
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Abstract
The utility model discloses a piezoelectricity micro air pump structure, including shell body, pump chamber, a vibrating structure, the 2nd vibrating structure, first electrically conductive and the electrically conductive piece of second. The shell body is equipped with air inlet and gas outlet and communicates with each other through air inlet, gas outlet and external environment. The pump chamber sets up and links to each other in the shell body and with the shell body. The pump chamber is equipped with first through -hole and communicates with each other through first through -hole and shell body inner chamber. 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. First through -hole, exhaust passage and gas outlet are relative. A vibrating structure is close to the 2nd vibrating structure's side and the side electric connection that the 2nd vibrating structure is close to a vibrating structure. A vibrating structure another side and the 2nd vibrating structure another side are through an electrically conductive electric connection. The utility model discloses the conductive lead wire has been reduced to save piezoelectricity micro air pump structure's inner space, makeed piezoelectricity micro air pump structure's compact structure.
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
For the existing piezoelectric micromotor air pump utilizing Venturi effect, only connect outside pump chamber in its device and have a vibrational structure, 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.In order to be effectively improved air pump tolerance and air pressure, so that air flow source pore efficiently sprays gas, applicant adds a vibrational structure in voltage electrical pump installation, and two vibrational structures are separately positioned on pump chamber both sides, jointly change pump chamber volume by two vibrational structure synchronous backwards or opposite vibration and improve the vibrating effect of vibrational structure, thus realize air flow source pore efficiently sprays gas.
But, vibrational structure needs to be connected to the both positive and negative polarity of power supply by conductor wire, just can play effect after energising.After increasing a vibrational structure in piezoelectric micromotor air pump device, the conductor wire that the vibrational structure of increase is connected occupies the space of piezoelectric micromotor air pump device, makes piezoelectric micromotor air pump device inner structure mixed and disorderly, and will virtually increase the volume of piezoelectric micromotor air pump device.
Summary of the invention
Based on this, this utility model is to overcome the defect of prior art, it is provided that the piezoelectric micromotor air pump structure of a kind of compact conformation.
Its technical scheme is as follows: a kind of piezoelectric micromotor air pump structure, including: shell body, described shell body is provided with air inlet and gas outlet, and described shell body inner chamber is communicated with external environment by described air inlet, described gas outlet；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 is oppositely arranged with described gas outlet；nullAnd first vibrational structure、Second vibrational structure and electric-conductor，Described first vibrational structure and described second vibrational structure are separately positioned on described pump chamber both sides，Described first vibrational structure is provided with exhaust passage，Described exhaust passage is oppositely arranged with described gas outlet，Described first vibrational structure is electrically connected with near the side of described first vibrational structure with described second vibrational structure near the side of described second vibrational structure，And described first vibrational structure is electrically connected to the negative or positive electrode of power supply near the side of described second vibrational structure and described second vibrational structure near the side of described first vibrational structure，Described first vibrational structure is electrically connected with by electric-conductor away from the side of described first vibrational structure with described second vibrational structure away from the side of described second vibrational structure，Described electric-conductor is electrically connected to negative pole or the positive pole of power supply.
Wherein in an embodiment, described pump chamber includes the first oscillating plate, the second oscillating plate and support ring, described support ring includes annular slab and is connected to several support members of described annular slab sidepiece, 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 and formed described exhaust passage with described third through-hole.
Wherein in an embodiment, described second vibrational structure includes that the 4th oscillating plate and the second silver strip, described 4th oscillating plate and described second silver strip are stacked on described second oscillating plate.
Wherein in an embodiment, described first oscillating plate, described second oscillating plate, described 3rd oscillating plate, described 4th oscillating plate and described support ring are metal material, described 3rd oscillating plate, described first oscillating plate, described support ring, described second oscillating plate and described 4th oscillating plate are electrically connected with, and described electric-conductor is conductor wire, conductive strips or flexible PCB.
Wherein in an embodiment, described support member is electrically connected with the first sheet metal, and the side of the most described first silver strip of described second silver strip is electrically connected with the second sheet metal.
Wherein in an embodiment, described shell body medial wall has annular flange flange, described annular flange flange arranges around described gas outlet and is oppositely arranged with described pump chamber, and the cross section size of described annular flange flange is gradually reduced on the direction of described gas outlet to described pump chamber.
Wherein in an embodiment, the aperture of described first through hole is less than the internal diameter of described exhaust passage, and described first through hole, described exhaust passage and described gas outlet are coaxially disposed.
Wherein in an embodiment, the air inlet on described shell body is oppositely arranged with described gas outlet, 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 detachably provided with cover plate, 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 vibrational structure is electrically connected with near the side of the first vibrational structure with the second vibrational structure near the side of the second vibrational structure, and it is electrically connected to the negative or positive electrode of power supply, described first vibrational structure another side is electrically connected with by electric-conductor with described second vibrational structure another side, and electric-conductor is electrically connected to negative pole or the positive pole of power supply.So the first vibrational structure, the second vibrational structure can be accessed power supply, and without the first vibrational structure, the second vibrational structure are accessed power supply by conductor leading respectively.Visible this utility model decreases conductive lead wire, saves the inner space of piezoelectric micromotor air pump structure so that the compact conformation of piezoelectric micromotor air pump structure.
2, being coaxially disposed in the first through hole, exhaust passage and gas outlet, during pump chamber inner chamber body reduces, 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, after the first silver strip and the second silver strip are applied the voltage of preset frequency, make the first silver strip and the second silver strip bend in opposite directions or back-flexing, just can 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, 13, annular flange flange, 20, pump chamber, 21, the first oscillating plate, the 211, first through hole, the 22, second oscillating plate, 23, support ring, 231, annular slab, 232, support member, the 30, first vibrational structure, 31, the 3rd oscillating plate, 311, the second through hole, the 32, first silver strip, 321, third through-hole, 40, the second vibrational structure, 41, the 4th oscillating plate, the 42, second silver strip, 50, electric-conductor, 60, the first sheet metal, the 70, second sheet metal.
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 the 30, second vibrational structure 40, electric-conductor 50.
Described shell body 10 is provided with air inlet 121 and gas outlet 11.Described shell body 10 inner chamber is communicated with external environment by described air inlet 121, described gas outlet 11.Described pump chamber 20 is arranged in described shell body 10 inner chamber, and described pump chamber 20 is connected with described shell body 10.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, and 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, and described exhaust passage is oppositely arranged with described gas outlet 11.When the first vibrational structure 30 and the second vibrational structure 40 are after the Tong Bu vibration in the opposite direction in pump chamber 20 both sides, pump chamber 20 inner chamber body just can be made to expand or shrink.During pump chamber 20 inner chamber body reduces, it is possible in making pump chamber 20, gas is expelled in external environment by the first through hole 211, exhaust passage and gas outlet 11, thus realize spraying high pressure, high velocity air at gas outlet 11.
Described first vibrational structure 30 is electrically connected with near the side of described first vibrational structure 30 near the side of described second vibrational structure 40 and described second vibrational structure 40, and described first vibrational structure 30 is electrically connected to the negative or positive electrode of power supply near the side of described second vibrational structure 40 and described second vibrational structure 40 near the side of described first vibrational structure 30.Described first vibrational structure 30 is electrically connected with by electric-conductor away from the side of described first vibrational structure 30 with described second vibrational structure 40 away from the side of described second vibrational structure 40, and described electric-conductor 50 is electrically connected to negative pole or the positive pole of power supply.
Above-mentioned piezoelectric micromotor air pump structure, first vibrational structure 30 is electrically connected with near the side of the first vibrational structure 30 with the second vibrational structure 40 near the side of the second vibrational structure 40, and it is electrically connected to the negative or positive electrode of power supply, described first vibrational structure 30 another side is electrically connected with by electric-conductor 50 with described second vibrational structure 40 another side, and electric-conductor 50 is electrically connected to negative pole or the positive pole of power supply.So, first vibrational structure the 30, second vibrational structure 40 can be accessed power supply, and without first vibrational structure the 30, second vibrational structure 40 is accessed power supply by conductor leading respectively.Visible, this utility model decreases conductive lead wire, saves the inner space of piezoelectric micromotor air pump structure so that the compact conformation of piezoelectric micromotor air pump structure.
Described pump chamber 20 includes the first oscillating plate the 21, second oscillating plate 22 and support ring 23.Described support ring 23 includes annular slab 231 and is connected to several support members 232 of described annular slab 231 sidepiece.Described support member 232 is connected with described shell body 10, and 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, and 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 through hole 311 communicates and is formed described exhaust passage with described third through-hole 321.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.
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 the 32, second silver strip 42 is connected with the 3rd oscillating plate the 31, the 4th oscillating plate 41 respectively, the radial contraction of the first silver strip 32 and the second silver strip 42 is just converted into and bends up or down, thus drives the 3rd oscillating plate the 31, the 4th oscillating plate 41 to vibrate the most up or down accordingly.After so the first silver strip 32 and the second silver strip 42 are applied the voltage of preset frequency, make the first silver strip 32 and the second silver strip 42 bend in opposite directions or back-flexing, just can realize pump chamber 20 inner chamber body contraction or expansion.
Wherein, described first oscillating plate 21, described second oscillating plate 22, described 3rd oscillating plate 31, described 4th oscillating plate 41 and described support ring 23 are metal material.Described 3rd oscillating plate 31, described first oscillating plate 21, described support ring 23, described second oscillating plate 22 and described 4th oscillating plate 41 are electrically connected with, and described electric-conductor 50 is conductor wire, conductive strips or flexible PCB.It addition, described support member 232 is electrically connected with the first sheet metal 60, the side of the most described first silver strip 32 of described second silver strip 42 is electrically connected with the second sheet metal 70.Power line extend into inside piezoelectricity air pump through air inlet 121, and be connected with first sheet metal the 60, second sheet metal 70, thus the both positive and negative polarity of first silver strip the 32, second silver strip 42 is electrically connected with power line respectively, just can realize first silver strip the 32, second silver strip 42 is applied the voltage of predeterminated frequency.
Described shell body 10 medial wall has annular flange flange 13.Described annular flange flange 13 arranges around described gas outlet 11 and is oppositely arranged with described pump chamber 20, and the cross section size of described annular flange flange 13 is gradually reduced on the direction of described gas outlet 11 to described pump chamber 20.It is arranged such, is beneficial at shell body 10 cohesion collection gas so that gas is not easy to go out from gas outlet 11, it is thus possible to strengthen shell body 10 air pressure inside accordingly, improve the air-flow spouting velocity of gas outlet 11.
Described first through hole 211, described exhaust passage and described gas outlet 11 are coaxially disposed.So during pump chamber 20 inner chamber body reduces, 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 air pressure of air-flow is higher, and the spouting velocity of air-flow is fast.The aperture of the first through hole 211 is less than the internal diameter of exhaust passage, 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 gas outlet 11 is unaffected.
Air inlet 121 on described shell body 10 is oppositely arranged with described gas outlet 11, and the internal diameter of described shell body 10 inner chamber is gradually reduced on the direction of described air inlet 121 to described gas outlet 11.Described shell body 10 is detachably provided with cover plate 12, 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 does not exist 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 more 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 (10)
1. a piezoelectric micromotor air pump structure, it is characterised in that including:
Shell body, described shell body is provided with air inlet and gas outlet, and described shell body inner chamber is communicated with external environment by described air inlet, described gas outlet；
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 is oppositely arranged with described gas outlet；And
First vibrational structure, second vibrational structure and electric-conductor, described first vibrational structure and described second vibrational structure are separately positioned on described pump chamber both sides, described first vibrational structure is provided with exhaust passage, described exhaust passage is oppositely arranged with described gas outlet, described first vibrational structure is electrically connected with near the side of described first vibrational structure with described second vibrational structure near the side of described second vibrational structure, and described first vibrational structure is electrically connected to the negative or positive electrode of power supply near the side of described second vibrational structure and described second vibrational structure near the side of described first vibrational structure；Described first vibrational structure is electrically connected with by electric-conductor away from the side of described first vibrational structure with described second vibrational structure away from the side of described second vibrational structure, and described electric-conductor is electrically connected to negative pole or the positive pole of power supply.
Piezoelectric micromotor air pump structure the most according to claim 1, it is characterized in that, described pump chamber includes the first oscillating plate, the second oscillating plate and support ring, described support ring includes annular slab and is connected to several support members of described annular slab sidepiece, 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.
Piezoelectric micromotor air pump structure the most according to claim 2, 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 and formed described exhaust passage with described third through-hole.
Piezoelectric micromotor air pump structure the most according to claim 3, it is characterised in that described second vibrational structure includes that the 4th oscillating plate and the second silver strip, described 4th oscillating plate and described second silver strip are stacked on described second oscillating plate.
Piezoelectric micromotor air pump structure the most according to claim 4, it is characterized in that, described first oscillating plate, described second oscillating plate, described 3rd oscillating plate, described 4th oscillating plate and described support ring are metal material, described 3rd oscillating plate, described first oscillating plate, described support ring, described second oscillating plate and described 4th oscillating plate are electrically connected with each other, and described electric-conductor is conductor wire, conductive strips or flexible PCB.
Piezoelectric micromotor air pump structure the most according to claim 5, it is characterised in that described support member is electrically connected with the first sheet metal, the side of the most described first silver strip of described second silver strip is electrically connected with the second sheet metal.
Piezoelectric micromotor air pump structure the most according to claim 1, it is characterized in that, described shell body medial wall has annular flange flange, described annular flange flange arranges around described gas outlet and is oppositely arranged with described pump chamber, and the cross section size of described annular flange flange is gradually reduced on the direction of described gas outlet to described pump chamber.
Piezoelectric micromotor air pump structure the most 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, and described first through hole, described exhaust passage and described gas outlet are coaxially disposed.
Piezoelectric micromotor air pump structure the most according to claim 1, it is characterised in that the air inlet on described shell body is oppositely arranged with described gas outlet, the internal diameter of described shell body inner chamber is gradually reduced on the direction of described air inlet to described gas outlet.
Piezoelectric micromotor air pump structure the most according to claim 1, it is characterised in that described shell body is detachably provided with cover plate, described cover plate is provided with described air inlet.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620147005.1U CN205445973U (en) | 2016-02-25 | 2016-02-25 | 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 |
|---|---|---|---|
| CN201620147005.1U CN205445973U (en) | 2016-02-25 | 2016-02-25 | Piezoelectricity micro air pump structure |
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| Publication Number | Publication Date |
|---|---|
| CN205445973U true CN205445973U (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620147005.1U Active CN205445973U (en) | 2015-10-08 | 2016-02-25 | Piezoelectricity micro air pump structure |
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| CN (1) | CN205445973U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106290098A (en) * | 2016-10-27 | 2017-01-04 | 广东奥迪威传感科技股份有限公司 | Dust investigating |
| WO2018076405A1 (en) * | 2016-10-27 | 2018-05-03 | 广东奥迪威传感科技股份有限公司 | Dust measurement device |
-
2016
- 2016-02-25 CN CN201620147005.1U patent/CN205445973U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106290098A (en) * | 2016-10-27 | 2017-01-04 | 广东奥迪威传感科技股份有限公司 | Dust investigating |
| WO2018076405A1 (en) * | 2016-10-27 | 2018-05-03 | 广东奥迪威传感科技股份有限公司 | Dust measurement device |
| CN106290098B (en) * | 2016-10-27 | 2024-04-02 | 广东奥迪威传感科技股份有限公司 | Dust detection device |
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