CN203717299U - Parallel type piezoelectric micropump - Google Patents
Parallel type piezoelectric micropump Download PDFInfo
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- CN203717299U CN203717299U CN201420046864.2U CN201420046864U CN203717299U CN 203717299 U CN203717299 U CN 203717299U CN 201420046864 U CN201420046864 U CN 201420046864U CN 203717299 U CN203717299 U CN 203717299U
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- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 7
- 239000008358 core component Substances 0.000 abstract 2
- 238000009776 industrial production Methods 0.000 abstract 1
- 238000005086 pumping Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000012076 audiometry Methods 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model discloses a parallel type piezoelectric micropump which comprises a cover body, a shell which is fixedly matched with the cover body to form a pump cavity, and a pump core component positioned in the pump cavity, wherein the pump core component comprises a first support fixed on the cover body, a second support fixed on the shell, a first elastic sealing ring mounted on the first support, a second elastic sealing ring mounted on the second support, a first piezoelectric vibrator which is provided with the edge periphery pre-pressing the first elastic sealing ring and presses against the cover body, a second piezoelectric vibrator which is provided with the edge periphery pre-pressing the second elastic sealing ring and presses against the shell, and an inlet valve and an outlet valve which are mounted on the first support and the second support; the parallel type piezoelectric micropump is provided with a first variable cavity and a second variable cavity; the first variable cavity and the second variable cavity contain mediums through the inlet valve and discharge the mediums through the outlet valve. The parallel type piezoelectric micropump disclosed by the utility model is compact and small in structure, high in flow and low in noise, can realize industrial production and has an extremely high practical value.
Description
Technical field
The utility model relates to pump field, relates to particularly a kind of piezoelectric pump.
Background technique
Piezoelectric pump is as a kind of micropump, and the little and low advantage of noise of its volume, makes it be favored in a lot of fields, but have a very large defect, and flow is very low, has seriously limited its using scope.The working method of piezoelectric pump is to utilize the characteristic of piezoelectric vibrator to realize, be, behind piezoelectric vibrator indirect current source, double vibrations occurs, thereby circulation increases and dwindles the volume of ground period changing variable cavity, in the time that variable cavity dwindles, in compression chamber, medium forces outlet valve to be opened, thereby in chamber, medium flows out to the external world, in the time that expanding, variable cavity makes to form in chamber negative pressure, thereby extraneous medium forces inlet valve to be opened and flows to variable cavity by inlet valve, piezoelectric pump is by the double vibrations of piezoelectric vibrator, continuously extraneous medium is pumped in variable cavity, then medium in variable cavity is pumped out to extraneous required destination.But because the amplitude of its piezoelectric vibrator is very little, thereby cause its flow very low, although the operating voltage that increases piezoelectric vibrator can increase the amplitude of piezoelectric vibrator, thereby can augmented flow, but increase the noise that voltage easily causes increasing pump, and, the excessive life-span that also can have a strong impact on piezoelectric vibrator of operating voltage amplification; Improve flow by multiple pumps and can increase taking up room of pump.Chinese patent CN201220674040.0 discloses a kind of piezoelectric micropump, as shown in Figure 1, this piezoelectric pump is the piezoelectric pump of a kind of monolithic list chamber (a corresponding variable cavity of piezoelectric vibrator) formula, this piezoelectric pump comprises lid a01, housing a02, support a03, piezoelectric vibrator a04, inlet valve a05 and outlet valve a06, support a03 is arranged on lid a01, inlet valve a05 and outlet valve a06 are arranged on support a03, between piezoelectric vibrator a04 and support a03, be formed with a variable cavity a07, the surrounding edge of piezoelectric vibrator a04 is supported housing a02, the inlet valve a05 that this piezoelectric pump adopts and outlet valve a06 are a kind of one-way valves of same structure, this kind of valve comprises opening/closing portion, assembly department and the waist between opening/closing portion and assembly department, opening/closing portion is made up of two switching lobes with respect to opening axis symmetry, this pump adopts this valve body structure to can solve noise problem, make this pump also can be with very low noise work under higher voltage, therefore this pump can suitably improve a fixed working voltage to increase its flow, but increase very unobvious.Although there is parallel-type double-cavity piezoelectric pump in existing, to improve flow, but it is larger all to take up room, but also there is a very large defect, being the pressure that provides of two piezoelectric vibrators of parallel-type double-cavity piezoelectric pump and flow may cause differing greatly because of various factors, so cause provided flow to be had a greatly reduced quality, or it is widely different and can not meet corresponding environmental requirement to have the rate-of flow that the piezoelectric pump of multiple discharge tubes discharges, and has a strong impact on the up-to-standard rate of product.
Model utility content
The utility model is to solve existing piezoelectric pump flow too low problem, and spy provides a kind of can increase substantially its flow and volume amplification is less, therefore noise does not increase the parallel piezoelectric micropump of one.
The parallel piezoelectric micropump of one of the present utility model, comprise lid, with lid secure fit and form with it the housing of pump chamber, and be positioned at the pump core assembly of pump chamber, described pump core assembly comprises: be fixed on the first bearing on lid, be fixed on the second bearing on housing, be arranged on the first elastic seal ring on the first bearing, be arranged on the second elastic seal ring on the second bearing, edge is pressed in advance on the first elastic seal ring around and supports the first piezoelectric vibrator of lid, edge is pressed in advance on the second elastic seal ring around and supports the second piezoelectric vibrator of housing, and be arranged on inlet valve and the outlet valve on the first bearing and the second bearing,
The space that described the first bearing and the first elastic seal ring, the first piezoelectric vibrator surround forms the first variable cavity, the space that described the second bearing and the second elastic seal ring, the second piezoelectric vibrator surround forms the second variable cavity, described the first variable cavity and the second variable cavity are held medium and are discharged medium by corresponding outlet valve by corresponding inlet valve, described the first bearing and/or the second bearing are provided with the discharge tube that is positioned at the side that the first bearing is adjacent with the second bearing, and the medium of discharging by outlet valve is outside discharge tube is discharged pump chamber.
Through further improving, described the first susceptor design is become and the identical structure of the second bearing.
Through further improving, described the first elastic seal ring is designed to double-layer seal rings, the edge that described double-layer seal rings is wrapped in the first piezoelectric vibrator around on, described the first piezoelectric vibrator is pressed on the first bearing in advance by one deck of double-layer seal rings, supports lid by another layer of double-layer seal rings.
Through further improving, one deck of supporting lid of described double-layer seal rings is designed to have an opening.
Through further improving, described the second elastic seal ring is designed to double-layer seal rings, the edge that described double-layer seal rings is wrapped in the second piezoelectric vibrator around on, described the second piezoelectric vibrator is pressed on the second bearing in advance by one deck of double-layer seal rings, supports housing by another layer of double-layer seal rings.
Through further improving, one deck of supporting housing of described double-layer seal rings is designed to have an opening.
Through further improving, described lid be provided with extend to the first bearing direction and with the first bearing corresponding the first projection around, described the first bearing is fixed in the first projection, described housing be provided with extend to the second bearing direction and with the second bearing corresponding the second projection around, described the second bearing is fixed in the second projection.
Through further improving, between described the first bearing and the second bearing, be provided with the outlet plenum that the formation that is mutually sealed and matched is connected with discharge tube, described outlet plenum has space to hold medium and outlet valve outside the first variable cavity and the part of the second variable cavity extension.
Through further improving, described outlet plenum is designed to one, described discharge tube is also one.
Through the another kind of previous step is improved, described outlet plenum is designed to two, on described the first bearing and the second bearing, be respectively provided with a discharge tube, described two outlet plenums and two discharge tubes are corresponding and be communicated with one by one.
Through further improving, on described the first bearing face relative with the second bearing, be provided with the groove corresponding with corresponding inlet valve and outlet valve.
Technological scheme by parallel piezoelectric micropump of the present utility model is known, aspect flow, parallel piezoelectric micropump has two piezoelectric vibrators and two variable cavities, thereby enough power pumped medium can be provided, and its pump output can reach the twice of monolithic list chamber pump.
Aspect noise, the first bearing is fixed on lid, the second bearing is fixed on housing, thereby make the first bearing and the second bearing be difficult for vibrating, it is to be all pressed in advance on corresponding bearing by elastic seal ring that two piezoelectric vibrators of power are provided, so the vibrational energy that the piezoelectric vibrator of one of main noise source is delivered on support and lid and housing is obviously slackened; And the inlet valve in maximum noise source and outlet valve, flow to and flow out the entry end of the second variable cavity and outlet end all between the first bearing and the second bearing because medium flows to and flows out the entry end of the first variable cavity and outlet end and medium, so noise obtains dual resisteance, the noise source that is inlet valve and outlet valve place is isolated by the first bearing and the second bearing, lid and housing respectively, thereby noise is significantly slackened.Therefore for whole pump, with respect to the monolithic list chamber pump in existing, can't obviously increase noise, can reach the direct audiometry of employment ear and be difficult for telling the effect that noise increases.
Aspect volume, the first bearing and the first elastic seal ring, the space that the first piezoelectric vibrator surrounds forms the first variable cavity, the second bearing and the second elastic seal ring, the space that the second piezoelectric vibrator surrounds forms the second variable cavity, medium flows to and flows out the entry end of the first variable cavity and outlet end and medium and flows to and flow out the entry end of the second variable cavity and outlet end all between the first bearing and the second bearing, described the first bearing and/or the second bearing are provided with the discharge tube that is positioned at the side that the first bearing is adjacent with the second bearing, so, whole pump can increase in the upper overall structure of horizontal direction (i.e. the direction vertical with piezoelectric vibrator direction of vibration), only at the certain thickness of the upper increase of longitudinal direction (being piezoelectric vibrator direction of vibration), and all inlet valves and outlet valve are owing to there being in a lateral direction enough spaces to arrange, thereby only need take in a longitudinal direction the height of a valve, therefore in fact the thickness that whole pump increases be in a longitudinal direction less than or equal to a bearing, the thickness increasing at longitudinal direction after an elastic seal ring and a piezoelectric vibrator assembling, the increase of whole pump thickness can be controlled in 30% completely, if the valve adopting has higher height in a longitudinal direction, can also be by forming groove at two supports on opposite, to hold inlet valve or/and a part for outlet valve, thereby the increasing amount that makes whole pump thickness is less than a bearing, the thickness increasing at longitudinal direction after an elastic seal ring and a piezoelectric vibrator assembling, the thickness increase of whole pump even can be controlled in 20%, increased the pump of a times for flow, it is very considerable that volume only increases by 20%, to be very easy to allow client accept.So parallel piezoelectric micropump of the present utility model can significantly increase its application area, has very high using value.
Aspect performance guarantee, the first bearing is fixed on lid, the second bearing is fixed on housing, so working as upper cover and lower cover is not assembled together and makes, whole pump is equivalent to two independently systems, it is lid, the first elastic seal ring, the first piezoelectric vibrator, the first bearing, and the inlet valve and the outlet valve that are arranged on the first bearing form an independently pumping system, housing, the second elastic seal ring, the second piezoelectric vibrator, the second bearing, and the inlet valve and the outlet valve that are arranged on the second bearing form another independently pumping system, thereby before not assembling mutually, upper cover and lower cover can pass through the relevant parameter separately of two self-contained pump systems of device measuring, for example flow and pressure, in production in enormous quantities, select two self-contained pump systems that parameter is close and mutually assembly a complete pump, thereby can greatly reduce the reject ratio of product, cost-saving.
In addition, parallel piezoelectric micropump of the present utility model both can also can be used as water pump as air pump, the inlet valve, outlet valve, piezoelectric vibrator and their matching requirements that only just adopted in practice as air pump with as water pump may be different, and, if for pumping non-air medium, also easily realize, increase inlet duct and join to extending between the first bearing and the second bearing with the entrance that flows to variable cavity, can't increase the volume of integral pump.
Brief description of the drawings
The sketch that Fig. 1 is a kind of single chamber piezoelectric pump of providing in prior art.
The erection drawing of a kind of mode of execution of a kind of parallel piezoelectric micropump that Fig. 2 provides for the utility model.
Fig. 3 is the A-A cutaway view Amplified image shown in Fig. 2.
Fig. 4 is the B-B cutaway view Amplified image shown in Fig. 2.
The stereogram of the bearing of a kind of mode of execution of a kind of parallel piezoelectric micropump that Fig. 5 provides for the utility model.
Fig. 6 is and the stereogram of the bearing of Fig. 5 different amount.
The stereogram of the double-layer seal rings of a kind of mode of execution of a kind of parallel piezoelectric micropump that Fig. 7 provides for the utility model.
Embodiment
Clearer for technical problem, technological scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figures 2 to 7, a kind of parallel piezoelectric micropump of the present embodiment, comprise lid 1, with lid 1 secure fit and form with it the housing 2 of pump chamber 10, and be positioned at the pump core assembly of pump chamber 10, described pump core assembly comprises: be fixed on the first bearing on lid 1, be fixed on the second bearing on housing 2, be arranged on the first elastic seal ring on the first bearing, be arranged on the second elastic seal ring on the second bearing, edge is pressed in advance on the first elastic seal ring around and supports the first piezoelectric vibrator of lid, edge is pressed in advance on the second elastic seal ring around and supports the second piezoelectric vibrator of housing, and be arranged on inlet valve 7 and the outlet valve 8 on the first bearing and the second bearing,
Described the first bearing and the first elastic seal ring, the space that the first piezoelectric vibrator surrounds forms the first variable cavity 6a, described the second bearing and the second elastic seal ring, the space that the second piezoelectric vibrator surrounds forms the second variable cavity 6b, described the first variable cavity 6a and the second variable cavity 6b are held medium and are discharged medium by outlet valve 8 by inlet valve 7, and medium flows to and flows out the entry end of the first variable cavity 6a and outlet end and medium and flows to and flow out the entry end of the second variable cavity 6b and outlet end all between the first bearing and the second bearing, described the first bearing is provided with the second bearing the discharge tube that is positioned at the first bearing side relative to the second bearing, the medium of discharging by outlet valve 8 is outside discharge tube is discharged pump chamber 10, discharge tube can be one or more, and discharge tube also can be cooperatively interacted and be combined by the first bearing and the second bearing.
The first bearing in the present embodiment and the second bearing are that two identical bearing as shown in drawings 3, the first piezoelectric vibrator and the second piezoelectric vibrators are that two identical 4, the first elastic seal rings of piezoelectric vibrator as shown in drawings and the second elastic seal ring are two identical double-layer seal rings 5.Design can reduce component kind like this, is also convenient to install.
For the ease of assembling be convenient to testing product performance, the parallel piezoelectric micropump of the present embodiment is also provided with the splicing ear 17 connecting with cable 16, and play the electric wire 18 of conducting effect, cable 16 is for switching on ac power supply, two piezoelectric vibrators 4 weld with corresponding electric wire 18, connect mutually with splicing ear 17 with the electric wire 18 that wherein a piezoelectric vibrator 4 welds, the electric wire 18 welding with another piezoelectric vibrator 4, when lid 1 and housing 2 cooperatively interact, connects mutually with splicing ear 17.
In addition, bearing 3 is provided with entrance 32 and outlet 33, the corresponding inlet valve 7 of entrance 32, the corresponding outlet valve 8 of outlet valve 33, the formation first variable cavity 6a of bearing 3 or the one side of the second variable cavity 6b are smooth concave arc surface 31, and smooth concave arc surface is conducive to flowing of medium.
The edge that two double-layer seal rings 5 of the present embodiment are wrapped in respectively two piezoelectric vibrators 4 around on, so a piezoelectric vibrator 4 is pressed on corresponding bearing 3 in advance by one deck of a double-layer seal rings 5, another layer by double-layer seal rings 5 is supported on lid 1, 4 one decks by another double-layer seal rings 5 of another piezoelectric vibrator are pressed on another bearing 3 in advance, another layer by another double-layer seal rings 5 is supported on housing 2, double-layer seal rings 5 both can ensure the sealing of the first variable cavity 6a and the second variable cavity 6b, can increase again the amplitude of piezoelectric vibrator 4, improve flow, all right damping, greatly reduce piezoelectric vibrator 4 and support 3, the noise producing between lid 1 and housing 2.
In addition, be formed with an opening 51 on one deck of double-layer seal rings 5, when installation, the one deck with opening 51 is positioned at a side that deviates from respective holder 3, thereby is that the solder joint that electric wire 18 and/or electric wire 18 are welded on piezoelectric vibrator is dodged space.
Be delivered in order to slacken the vibrational energy of two bearings 3 on the surface of lid 1 and housing 2, the lid 1 of the present embodiment is provided with the first projection 12, housing 2 is provided with the second projection 22, two bearings 3 are separately fixed in the first projection 12 and the second projection 22, the means of fixation of bearing 3 has multiple, the present embodiment adopts hyperacoustic mode to fix, be steadily difficult for again producing extra noise, and in order bearing 3 to be seated before ultrasonic welding, the lid 1 of the present embodiment is provided with draw-in groove 11, housing 2 is provided with draw-in groove 21, bearing 3 is provided with the buckle 37 matching with draw-in groove 11 and draw-in groove 21.
For conserve space, between two bearings 3, be provided with the outlet plenum 36 that the formation that is mutually sealed and matched is connected with discharge tube, described outlet plenum 36 has space to hold medium and outlet valve 8 outside the first variable cavity 6a and the part of the second variable cavity 6b extension, thereby need not increase part sealing outlet plenum 36 in the upper occupying volume external space of longitudinal direction (being piezoelectric vibrator 4 direction of vibration), only need to rely on the structure of two bearings 3 self to realize, completely only need on bearing 3, offer circular groove 38 for seal ring 9 is installed in order to ensure sealing, longitudinal space outside can't occupying volume, on the bearing 3 of the present embodiment, be provided with separately a discharge tube 34, because two bearings 3 are identical, so the parallel piezoelectric micropump of the present embodiment is the piezoelectric pump with two discharge tubes 34, so outlet plenum 36 is also two, two outlet plenums 36 and two discharge tubes 33 are corresponding and be communicated with one by one, the medium that the first variable cavity 6a and the second variable cavity 6b discharge flows to respectively corresponding outlet plenum 36, finally discharge through discharge tube 33 separately.
The inlet valve 7 of the present embodiment and outlet valve 8 are a kind of self closing stop valve in a longitudinal direction with certain altitude, this kind of general rubber material that adopts high elasticity recovery of valve made, this kind of valve has two and opens and closes lobe, under extraneous pressure, can make to open and close lobe opens, can rely on again the elasticity recovery power of self automatically closed, the noise of this kind of valve generation is lower, thereby adopted by the present embodiment, but because its aspect ratio is higher, thereby the present embodiment is also provided with the groove 39 corresponding with corresponding inlet valve 7 and outlet valve 8 on bearing 3, to hold a part for inlet valve 7 and outlet valve 8, thereby avoid the increase of whole pump volume.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all any amendments within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (11)
1. a parallel piezoelectric micropump, comprise lid, with lid secure fit and form with it the housing of pump chamber, and be positioned at the pump core assembly of pump chamber, it is characterized in that: described pump core assembly comprises: be fixed on the first bearing on lid, be fixed on the second bearing on housing, be arranged on the first elastic seal ring on the first bearing, be arranged on the second elastic seal ring on the second bearing, edge is pressed in advance on the first elastic seal ring around and supports the first piezoelectric vibrator of lid, edge is pressed in advance on the second elastic seal ring around and supports the second piezoelectric vibrator of housing, and be arranged on inlet valve and the outlet valve on the first bearing and the second bearing,
Described the first bearing and the first elastic seal ring, the space that the first piezoelectric vibrator surrounds forms the first variable cavity, described the second bearing and the second elastic seal ring, the space that the second piezoelectric vibrator surrounds forms the second variable cavity, described the first variable cavity and the second variable cavity are held medium and are discharged medium by corresponding outlet valve by corresponding inlet valve, and medium flows to and flows out the entry end of the first variable cavity and outlet end and medium and flows to and flow out the entry end of the second variable cavity and outlet end all between the first bearing and the second bearing, described the first bearing and/or the second bearing are provided with the discharge tube that is positioned at the side that the first bearing is adjacent with the second bearing, the medium of discharging by outlet valve is outside discharge tube is discharged pump chamber.
2. the parallel piezoelectric micropump of one according to claim 1, is characterized in that: described the first bearing is identical with the second bearing.
3. the parallel piezoelectric micropump of one according to claim 1, it is characterized in that: described the first elastic seal ring is double-layer seal rings, the edge that described double-layer seal rings is wrapped in the first piezoelectric vibrator around on, described the first piezoelectric vibrator is pressed on the first bearing in advance by one deck of double-layer seal rings, supports lid by another layer of double-layer seal rings.
4. the parallel piezoelectric micropump of one according to claim 3, is characterized in that: on one deck of supporting lid of described double-layer seal rings, be formed with an opening.
5. the parallel piezoelectric micropump of one according to claim 1, it is characterized in that: described the second elastic seal ring is double-layer seal rings, the edge that described double-layer seal rings is wrapped in the second piezoelectric vibrator around on, described the second piezoelectric vibrator is pressed on the second bearing in advance by one deck of double-layer seal rings, supports housing by another layer of double-layer seal rings.
6. the parallel piezoelectric micropump of one according to claim 5, is characterized in that: on one deck of supporting housing of described double-layer seal rings, be formed with an opening.
7. the parallel piezoelectric micropump of one according to claim 1, it is characterized in that: described lid be provided with extend to the first bearing direction and with the first bearing corresponding the first projection around, described the first bearing is fixed in the first projection, described housing be provided with extend to the second bearing direction and with the second bearing corresponding the second projection around, described the second bearing is fixed in the second projection.
8. the parallel piezoelectric micropump of one according to claim 1, it is characterized in that: between described the first bearing and the second bearing, be provided with the outlet plenum that the formation that is mutually sealed and matched is connected with discharge tube, described outlet plenum has space to hold medium and outlet valve outside the first variable cavity and the part of the second variable cavity extension.
9. the parallel piezoelectric micropump pump of one according to claim 8, is characterized in that: described outlet plenum is one, described discharge tube is one.
10. the parallel piezoelectric micropump pump of one according to claim 8, is characterized in that: described outlet plenum is two, is respectively provided with a discharge tube on described the first bearing and the second bearing, and described two outlet plenums and two discharge tubes are corresponding and be communicated with one by one.
The parallel piezoelectric micropump of 11. one according to claim 1, is characterized in that: the face that described the first bearing is relative with the second bearing is provided with the groove corresponding with corresponding inlet valve and outlet valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420046864.2U CN203717299U (en) | 2014-01-24 | 2014-01-24 | Parallel type piezoelectric micropump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420046864.2U CN203717299U (en) | 2014-01-24 | 2014-01-24 | Parallel type piezoelectric micropump |
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| CN203717299U true CN203717299U (en) | 2014-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420046864.2U Expired - Lifetime CN203717299U (en) | 2014-01-24 | 2014-01-24 | Parallel type piezoelectric micropump |
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| CN (1) | CN203717299U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806488A (en) * | 2014-01-24 | 2015-07-29 | 胡军 | Parallel piezoelectric micro-pump |
| CN105889039A (en) * | 2014-11-10 | 2016-08-24 | 林淑媛 | Double-ceramic-chip piezoelectric pump |
| CN106150986A (en) * | 2015-03-25 | 2016-11-23 | 深圳市华简泵业科技有限公司 | Piezoelectric pump potsherd localization method |
-
2014
- 2014-01-24 CN CN201420046864.2U patent/CN203717299U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806488A (en) * | 2014-01-24 | 2015-07-29 | 胡军 | Parallel piezoelectric micro-pump |
| CN104806488B (en) * | 2014-01-24 | 2018-11-06 | 胡军 | A kind of parallel piezoelectric micropump |
| CN105889039A (en) * | 2014-11-10 | 2016-08-24 | 林淑媛 | Double-ceramic-chip piezoelectric pump |
| CN106150986A (en) * | 2015-03-25 | 2016-11-23 | 深圳市华简泵业科技有限公司 | Piezoelectric pump potsherd localization method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN HEYI PRECISION PUMP TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: HU JUN Effective date: 20150710 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150710 Address after: 518172 Guangdong Province, Shenzhen city Longgang District Center City Lin Xi Lu City Industrial Park No. three building four story North (subfamily company) Patentee after: SHENZHEN HEYI PRECISION PUMP TECHNOLOGY CO., LTD. Address before: Lin Xi Lu City Industrial Park in Longgang District of Shenzhen City, Guangdong province 518172 three four storey factory building (subfamily company) Patentee before: Hu Jun |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140716 Effective date of abandoning: 20181106 |