CN203892161U - Multi-vibrator piezoelectric pump - Google Patents
Multi-vibrator piezoelectric pump Download PDFInfo
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- CN203892161U CN203892161U CN201420224078.7U CN201420224078U CN203892161U CN 203892161 U CN203892161 U CN 203892161U CN 201420224078 U CN201420224078 U CN 201420224078U CN 203892161 U CN203892161 U CN 203892161U
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Abstract
The utility model relates to a multi-vibrator piezoelectric pump, which comprises a pump body (1), piezoelectric vibrators (2), an inlet valve (31), an outlet valve (32), an inlet pipe (4) and an outlet pipe (5), wherein the pump body (1) and a plurality of piezoelectric vibrators (2) form a cavity, one end of the cavity is connected with the inlet valve (31) through a module connection hole, the outer side of the inlet valve (31) is connected with the inlet pipe (4), the other end of the cavity is connected with the outlet valve (32) through the module connection hole, and the outer side of the outlet valve (32) is connected with the outlet pipe (5). The multi-vibrator piezoelectric pump is characterized in that the cavity comprises a plurality of local cavities which are formed by the piezoelectric vibrators (2) and the pump body (1). The piezoelectric vibrators (2) are driven by alternating voltage to bend and deform, the volume of various local cavities increase and reduce at the same time, fluid flows in through the inlet valve (31), and flows out from the outlet valve (32), and the multi-vibrator piezoelectric pump has the advantages of large volume change amount of the pump body, high work efficiency and large output flow of single cycle.
Description
Technical field
The utility model belongs to fluid transportation art, is specifically related to a kind of many oscillator piezoelectric pumps device.
Background technique
Piezoelectricity diaphragm pump is a kind of displacement pump being driven by piezoelectric vibrator, have be simple in structurely convenient to produce in enormous quantities, volume urine in microminiaturized, be convenient to the advantages such as Digital Control and life-span one-tenth, in instrument and apparatus, detection facility and mechano-electronic field, have wide practical use.At present to adjust the major way of flow be to realize by changing driving voltage and driver frequency to piezoelectric pump, and driving voltage is subject to the impact of piezoelectric constant electrology characteristic and exists limiting value, driver frequency to be subject to the response frequency of valve and the restriction of system inertia generally lower than 300Hz.Improve piezoelectric pump performance mainly by a plurality of series connections of pumps or in parallel realization.Because the displacement amount of the driving original paper piezoelectric vibrator of piezoelectric pump is very little, be generally no more than 0.3mm, the volume-variation causing is very little, for the valve of its coupling, require high, require valve reveal little, speed of response is high.In piezoelectric pump, valve efficiency is low at present, is the principal element that affects piezoelectric pump performance.
Summary of the invention
In order to solve, current piezoelectric pump cavity volume variable quantity is little, the inefficient problem of valve, proposed a kind of many oscillator piezoelectric pumps device, the cavity between its gateway valve consists of a plurality of oscillators and supporting structure, and the oscillator in cavity can be worked simultaneously, also can part conduct reserve, enable when needed.When its work, because a plurality of oscillators are out of shape simultaneously, the volume change of pump chamber increases, and is conducive to the open and close of valve, can improve the working efficiency of valve, increases the ability of single cycle output fluid simultaneously.Simultaneously because it can arrange standby oscillator, when needs increase flow, the mode that can enable piezoelectric vibrator quantity by increases realizes, also for output control provides larger interval.
To achieve these goals, the utility model is by the following technical solutions:
A kind of many oscillator piezoelectric pumps of the utility model, comprise cavity, one-way valve and associated ping that the pump housing and a plurality of piezoelectric vibrator form.Total N piezoelectric vibrator forms, N>2 wherein, each piezoelectric vibrator assembles formed seal space by Sealing and the pump housing and forms a local cavity, each local cavity is by a local entrance and a local outlet, all cavitys form the cavity that a plurality of piezoelectric vibrators form after being connected with local outlet by local entrance, finally be connected with outer pipe with inlet duct, inlet duct place arranges inlet one-way valve, arranges outlet one-way valve at outer pipe place.
The arrangement of each local cavity can be divided into three kinds: tandem arrangement, be arranged in parallel with mixed connection and arrange, wherein M chamber tandem arrangement as shown in Figure 1, k local cavity is connected by internal pipeline with k+1 local cavity, 2 < k < M wherein, inlet duct is connected with first local cavity, inlet valve is installed in ingress, and outlet is connected with M cavity, outlet port installation outlet valve, M local cavity is arranged in parallel, and as shown in Figure 2, each local inlet duct of k local cavity is connected with inlet duct, and each local outer pipe is connected with outer pipe simultaneously, wherein 2 < k≤M, under mixed connection deployment scenarios, a plurality of local cavity tandem arrangement or be arranged in parallel and form basic link block, it comprises a local outlet and a local entrance, single local cavity is a kind of special shape of basic link block, between a plurality of described basic link blocks, serial or parallel connection forms and mixes link block, between a plurality of described mixing link blocks, can again be connected in series or parallel and form new mixing link block, tandem arrangement and to be arranged in parallel be that the special circumstances of mixed-arrangement are classified separately to it, the local entrance of the final mixing link block forming is connected with inlet duct, local outlet is connected with outer pipe.
What feature was inlet duct and outer pipe or local inlet duct and local outer pipe and local cavity is connected cross section in the same diametric(al) of cavity, so that the discharge of bubble in cavity in the course of the work.
During work, under the driving of alternating voltage, there is back and forth distortion in each oscillator, the phase place of each oscillator is identical, increase simultaneously or reduce cavity volume, volume change in the single cycle between inlet valve and outlet valve is greater than traditional piezoelectric pump structure, can better bring into play the effect of one-way valve, account for the ratio reduction of cavity variable quantity simultaneously due to the leakage rate of valve, many oscillator piezoelectric pumps structure that this patent proposes has higher single output accuracy and the efficiency of valve.
Accompanying drawing explanation
Fig. 1 is the tandem arrangement mode schematic diagram of local cavity.
Fig. 2 is the mode that the is arranged in parallel schematic diagram of local cavity.
Fig. 3 is a basic embodiment of many oscillator piezoelectric pumps device of the present utility model.
Embodiment
With reference to Fig. 3, many oscillator piezoelectric pumps of the present utility model are to be formed by a plurality of local cavity series-parallel connection arrangements, by the pump housing 1, and piezoelectric vibrator 2, one-way valve 3, inlet duct 4 and outer pipe 5 form.The first cavity deep gouge 111, the second cavity deep gouge 112, the 3rd cavity deep gouge 113 and the 4th cavity deep gouge 114 on its middle pump body 1, have been arranged, the first piezoelectric vibrator 201 and the first cavity deep gouge 111 are by the local cavity 61 of the bonding formation first of binder 7, the second piezoelectric vibrator 202 and the second cavity deep gouge 112 are by the local cavity 62 of the bonding formation second of binder 7, the 3rd piezoelectric vibrator 23 and the 3rd cavity deep gouge 113 pass through the local cavity 64 of the bonding formation of binder 7 the 4th by local cavity 63, the four piezoelectric vibrators 204 of the bonding formation of binder 7 the 3rd and the 4th cavity deep gouge 114, between the first cavity deep gouge 111 and the 4th cavity deep gouge 114, be furnished with the common local outlet as two local cavitys as the common local entrance of two local cavitys and the second intercommunicating pore 122 of the first intercommunicating pore 121, the first local cavity 61 and the 4th local cavity 64 are arranged in parallel, and form the first basic link block 81, between the second cavity deep gouge 112 and the 3rd cavity deep gouge 113, be furnished with third connecting hole 123 common local outlet as two local cavitys as the common local entrance of two local cavitys and tetrad through hole 124, the second local cavity 61 and the 3rd local cavity 64 are arranged in parallel, and form the second basic link block 82, first module intercommunicating pore 131 one end are connected with the first intercommunicating pore 121, the other end is connected with inlet valve 141, local entrance as the first basic link block 81, second module intercommunicating pore 132 one end are connected with the second intercommunicating pore 122, the other end is connected with third connecting hole 123, outlet as the first basic link block 81 is connected the two with the entrance of the second basic link block 82, realize the tandem arrangement of the first basic link block 81 and the second basic link block 82, the 3rd module intercommunicating pore 133 one end are connected with the 4th intercommunicating pore 124, the other end is connected with outlet valve opening 142, outlet as the second basic link block 82, inlet valve 31 is arranged after entrance elastic ball 312 by the interior layout entrance of entrance valve opening 141 spring 311 of arranging on cavity 1 again, is packed inlet duct 4 into entrance valve opening 141 interior formation, outlet valve 32 is arranged after outlet spring 321 by the interior layout outlet of the outlet valve opening 142 of arranging on cavity 1 elastic ball 322 again, is packed outer pipe 5 into outlet valve opening 142 interior formation.
Described piezoelectric vibrator 2 is bonded on elastic base plate 202 and is formed by piezoelectric chip 201, by piezoelectric chip 201, is bonded in the single-chip piezoelectric vibrator that a side of elastic base plate 202 forms; Or adopt the twin lamella piezoelectric vibrator that both sides that two piezoelectric chips 201 are bonded in elastic base plate 202 simultaneously form, when forming twin lamella piezoelectric vibrator, opposed polarity face and the elastic base plate 202 of two piezoelectric chips are bonding.
During work, have at least the son of a piezoelectricity to deform, the cavity volume consisting of local cavity the 62, the 3rd local cavity 63 of the first local cavity 61, second and the 4th local cavity 64 increases or reduces, it in conjunction with one-way valve 3, is the unidirectional cutoff of inlet valve 31 and outlet valve 32, fluid is sucked from inlet duct 4, from outer pipe 5, discharge, form the ability of pumping fluid, when a plurality of piezoelectric vibrator work, each oscillator increases or reduces direction motion to cavity simultaneously, can increase the volume change of pump chamber in the single cycle, increase the efficiency of valve.
Claims (5)
1. oscillator piezoelectric pump more than a kind, comprise: the pump housing (1), piezoelectric vibrator (2), inlet valve (31), outlet valve (32), inlet duct (4) and outer pipe (5), its middle pump body (1) forms cavity with a plurality of piezoelectric vibrators (2), one end of cavity is connected with inlet valve (31) by module attachment hole, inlet valve (31) outside is connected with inlet duct (4), the other end of cavity is connected with outlet valve (32) by module attachment hole, outlet valve (32) outside is connected with outer pipe (5), form many oscillator piezoelectric pumps, it is characterized in that: described cavity consists of a plurality of local cavitys, described local cavity is connected and composed by Sealing by single oscillator and the pump housing, a plurality of cavitys are connected in series by intercommunicating pore or are connected in parallel and form basic link block, each basic link block connects by module attachment hole, each local cavity is connected to become to the cavity of Yi Ge UNICOM.
2. many oscillator piezoelectric pumps according to claim 1, is characterized in that: described cavity comprises N local cavity, wherein N>2.
3. many oscillator piezoelectric pumps according to claim 1, is characterized in that: described cylinder arrangement, on a whole block material, or is arranged on polylith material and by pipeline and connects.
4. many oscillator piezoelectric pumps according to claim 1, it is characterized in that: described piezoelectric vibrator is that a slice piezoelectric chip (201) is bonded in the upper single-chip piezoelectric vibrator forming of elastic base plate (202), or two piezoelectric chips (201) out-phase electrode is bonded in the upper twin lamella piezoelectric vibrator forming of elastic base plate (202).
5. many oscillator piezoelectric pumps according to claim 1, is characterized in that: described each local cavity bottom is all furnished with a local inlet duct and a local outer pipe, and this part inlet duct and local outer pipe are arranged in the diametric(al) of circular cylindrical cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420224078.7U CN203892161U (en) | 2014-05-04 | 2014-05-04 | Multi-vibrator piezoelectric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420224078.7U CN203892161U (en) | 2014-05-04 | 2014-05-04 | Multi-vibrator piezoelectric pump |
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| Publication Number | Publication Date |
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| CN203892161U true CN203892161U (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420224078.7U Expired - Fee Related CN203892161U (en) | 2014-05-04 | 2014-05-04 | Multi-vibrator piezoelectric pump |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925187A (en) * | 2014-05-04 | 2014-07-16 | 吉林大学 | Multi-vibrator piezoelectric pump |
| CN107514355A (en) * | 2017-09-30 | 2017-12-26 | 南方科技大学 | Micro-flow pump |
| CN109763967A (en) * | 2019-03-01 | 2019-05-17 | 浙江师范大学 | A kind of electronic device water-cooling system transfer tube |
| CN109854490A (en) * | 2019-03-03 | 2019-06-07 | 浙江师范大学 | A kind of axial-flow type miniature piezoelectric gas compressor |
| CN111980885A (en) * | 2020-08-24 | 2020-11-24 | 常州工学院 | Stacked double-cavity parallel piezoelectric pump with partition plate at outlet |
| CN112204256A (en) * | 2018-05-31 | 2021-01-08 | 株式会社村田制作所 | Pump and method of operating the same |
-
2014
- 2014-05-04 CN CN201420224078.7U patent/CN203892161U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925187A (en) * | 2014-05-04 | 2014-07-16 | 吉林大学 | Multi-vibrator piezoelectric pump |
| CN107514355A (en) * | 2017-09-30 | 2017-12-26 | 南方科技大学 | Micro-flow pump |
| CN107514355B (en) * | 2017-09-30 | 2019-07-16 | 瞬知（广州）健康科技有限公司 | A kind of miniflow pump |
| CN112204256A (en) * | 2018-05-31 | 2021-01-08 | 株式会社村田制作所 | Pump and method of operating the same |
| CN109763967A (en) * | 2019-03-01 | 2019-05-17 | 浙江师范大学 | A kind of electronic device water-cooling system transfer tube |
| CN109854490A (en) * | 2019-03-03 | 2019-06-07 | 浙江师范大学 | A kind of axial-flow type miniature piezoelectric gas compressor |
| CN111980885A (en) * | 2020-08-24 | 2020-11-24 | 常州工学院 | Stacked double-cavity parallel piezoelectric pump with partition plate at outlet |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 Termination date: 20170504 |