CN204402805U - A kind of mode of resonance piezoelectricity diaphragm pump - Google Patents
A kind of mode of resonance piezoelectricity diaphragm pump Download PDFInfo
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- CN204402805U CN204402805U CN201420698443.8U CN201420698443U CN204402805U CN 204402805 U CN204402805 U CN 204402805U CN 201420698443 U CN201420698443 U CN 201420698443U CN 204402805 U CN204402805 U CN 204402805U
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Abstract
The utility model relates to a kind of mode of resonance piezoelectricity diaphragm pump, belongs to piezoelectric resonant device.It is characterized in that, hub-type spring steel plate 15 and ring-shaped piezo ceramic sheet 13 form novel piezoelectric oscillator, novel piezoelectric oscillator is by lower shell body 1 and lower shell body 2 17 periphery fixed support, vibration-sensing rod 9 lower end is fixedly connected with novel piezoelectric oscillator central through bore, vibration-sensing rod 9 upper end and barrier film 7 pass through epoxy bond, vibration-sensing rod 9 is provided with sleeve 8, barrier film 7 is by seal ring 1 and seal ring 2 14 fixed support, entrance umbrella valve 5 is fixedly connected with pump intermediate 3 respectively with outlet umbrella valve 12, entrance 6 and outlet 11 lay respectively on pump upper shell 2, pump upper shell 2, pump intermediate 3, pump lower shell body 1, pump lower shell body 2 17 is fixedly connected with by bolt 1.The utility model advantage is: this mode of resonance piezoelectricity diaphragm pump is operated in resonance state, improve output flow and the pressure of piezoelectric pump, and the large young pathbreaker of sleeve quality changes the rigidity of system, and then change excitation system resonant frequency, this compact structure, be easy to microminiaturized, output capability is strong, can be applicable to the field such as chemical analysis and detection, drug delivery and fuel supply.
Description
Technical field
The utility model belongs to piezoelectric resonant device, is more particularly a kind of mode of resonance piezoelectricity diaphragm pump with hub-type spring steel plate.
Background technique
Piezoelectric pump research the earliest can trace back to nineteen seventies.1978, the people such as Sandia National Laboratory of U.S. W.J.Spenser took the lead in proposing automatically controlled insulin piezoelectric pump; 1980, the Snits of Standora university proposed piezoelectric liquid peristaltic pump; Nineteen eighty-three, the Twente university of Holland utilizes silicon micromachined and thin film technique to have developed multiple piezoelectric driving micro-pumps.Along with the development of electronic technology, the piezoelectric pump that people utilize inverse piezoelectric effect to develop achieves the driving of convection cell, define pump chamber between piezoelectric vibrator and housing, change pump chamber by the bending deflection of piezoelectric vibrator, realize the decompression of convection cell continuous print and suck and pressurization discharge.
But the piezoelectric film pump that is most or that drive based on piezoelectric chip of the domestic and international research to piezoelectric pump at present, it is formed primarily of piezoelectric vibrator, two one-way valves, the pump housings.When applying the excitation pulse of alternation to piezoelectric vibrator, piezoelectric vibrator can produce vibration deformation immediately, and passes to the pumping diaphragm be attached thereto, and the distortion of pumping diaphragm can affect the volume-variation of pump chamber thereupon.When the bending deflection of pumping diaphragm is downward, pump chamber internal pressure is less than ambient pressure, and pump chamber increases, and force inlet valve to be opened, outlet valve is closed, and fluid flows into pump chamber; When pumping diaphragm bending deflection upwards time, pump chamber internal pressure is greater than ambient pressure, pump chamber reduce, force outlet valve to be opened, inlet valve is closed, fluid flow out pump chamber.From the working principle of piezoelectric pump, the output performance of piezoelectric pump not only depends on the size of pump chamber, also depends on the vibration deformation ability of piezoelectric vibrator.In order to improve the output performance of piezoelectric pump, in recent years, various countries researcher proposes the piezoelectric pump of a lot of different structure, such as piezoelectric stack pump, piezoelectric ultrasonic pump etc.
The utility model proposes a kind of mode of resonance piezoelectricity diaphragm pump with hub-type spring steel plate, the piezoelectric vibrator that this piezoelectric pump is formed using hub-type spring steel plate and ring-shaped piezo ceramic sheet is as excitation source, piezoelectric vibrator and vibration-sensing rod, sleeve, barrier film form excitation system, realize the continuous output of fluid under resonance state.
Model utility content
The purpose of this utility model is the output performance in order to improve piezoelectric pump, piezoelectric vibrator, vibration-sensing rod, sleeve and barrier film is adopted to form excitation system, a kind of mode of resonance piezoelectricity diaphragm pump device with hub-type spring steel plate is proposed, in order to solve the problem that current piezoelectric pump delivery pressure is low, flow is little.
A kind of mode of resonance piezoelectricity diaphragm pump of the present utility model, it is characterized in that, active chamber is positioned in the middle part of the pump housing, pump upper shell, pump intermediate, pump lower shell body one, be bolted to connection between pump lower shell body two, be in the barrier film in pump chamber, on it, lower two ends are by seal ring one and seal ring two fixed support, entrance umbrella valve and outlet umbrella valve is fixedly connected with respectively in pump chamber entrance and outlet port, entrance and outlet lay respectively on pump upper shell, piezoelectric vibrator forms by hub-type spring steel plate is bonding with ring-shaped piezo ceramic sheet, piezoelectric vibrator is connected with barrier film by vibration-sensing rod, sleeve between piezoelectric vibrator and barrier film and with vibration-sensing rod Spielpassung.Adopt piezoelectric vibrator as actuating force source, when applying the excitation pulse of sinusoidal alternating to piezoelectric vibrator, the vibration deformation of piezoelectric vibrator will be delivered to barrier film by vibration-sensing rod and act on fluid, thus form the directed driven of convection cell.
The composite structure of what piezoelectric vibrator of the present utility model adopted is hub-type spring steel plate and ring-shaped piezo ceramic sheet, alternating voltage is converted into cyclic deformation by the inverse piezoelectric effect that piezoelectric vibrator application has itself, passes through vibrational excitation system with this.
Excitation system of the present utility model is primarily of piezoelectric vibrator, vibration-sensing rod, sleeve, barrier film composition, and excitation system is the cyclic deformation in order to amplification piezoelectric oscillator, and the cyclic deformation after amplifying is acted on by driving fluid.
The utility model advantage is: piezoelectric vibrator resonance can be utilized to improve flow and the Output pressure ability of piezoelectricity diaphragm pump; Designed excitation system can the crooked deformability of amplification piezoelectric oscillator, improves the working efficiency of pump; Novel structure, easy to use, be easy to microminiaturized.
Accompanying drawing explanation
Fig. 1 is the utility model resonance diaphragm pump structural representation;
Fig. 2 is the utility model resonance diaphragm pump excitation system structural representation;
Fig. 3 is the A-A generalized section of the utility model Fig. 1;
Fig. 4 is the B-B generalized section of the utility model Fig. 1;
Fig. 5 is the utility model resonant iris pump structure plan view;
Embodiment
The embodiment provided below in conjunction with accompanying drawing is further elaborated structure of the present utility model and principle.
As shown in Figure 1 and Figure 2, described mode of resonance piezoelectricity diaphragm pump is made up of the pump housing, runner, excitation system, the pump housing is made up of pump upper shell 2, pump intermediate 3, pump lower shell body 1, pump lower shell body 2 17, seal ring 1, seal ring 2 14, pump intermediate 3 and pump lower shell body 1 all have circular groove, seal ring 1 is enclosed within pump intermediate 3 circular groove, and seal ring 2 14 is enclosed within pump lower shell body 1 circular groove.Barrier film 7 periphery is fixedly connected with seal ring 2 14 by seal ring 1, and seal ring 1 is between pump intermediate 3 and barrier film 7, and seal ring 2 14 is between pump lower shell body 1 and barrier film 7.Runner is made up of entrance 6, entrance umbrella valve 5, outlet 11, outlet umbrella valve 12, and entrance umbrella valve 5 is fixedly connected with pump intermediate 3 respectively with outlet umbrella valve 12, and entrance 6 and outlet 11 lay respectively on pump upper shell 2.Excitation system is made up of barrier film 7, sleeve 8, vibration-sensing rod 9, ring-shaped piezo ceramic sheet 13, hub-type spring steel plate 15.As shown in Figure 3, Figure 4, hub-type spring steel plate 15 and ring-shaped piezo ceramic sheet 13 form piezoelectric vibrator, and piezoelectric vibrator is bondd by vibration-sensing rod 9 and barrier film 7, sleeve 8 between piezoelectric vibrator and barrier film 7 and with vibration-sensing rod 9 Spielpassung.As shown in Figure 5, pump upper shell 2, pump intermediate 3, pump lower shell body 1, pump lower shell body 2 17 are fixedly connected with by bolt 1.
For the working method of the utility model resonant piezoelectric diaphragm pump, when applying the excitation pulse of sinusoidal alternating to piezoelectric vibrator, generation is shunk or elongation strain by ring-shaped piezo ceramic sheet, the spring steel plate making to be bonded in lower end produces bending deflection alternately, by vibration-sensing rod and sleeve vibration passing on barrier film.When the energizing frequency applied to piezoelectric vibrator and excitation system fundamental frequency close to time, vibration system produces resonance, thus barrier film is up and down reciprocatingly vibrated.Now, the vibration performance of resonant piezoelectric diaphragm pump is optimum, output performance is best.When the bending deflection of barrier film is downward, pump chamber increases, and pump chamber internal pressure is less than ambient pressure, forces entrance umbrella valve to be opened, and outlet umbrella valve is closed, and fluid flows into pump chamber; When barrier film bending deflection upwards time, pump chamber reduces, and pump chamber internal pressure is greater than ambient pressure, and force outlet umbrella valve to be opened, entrance umbrella valve is closed, and fluid flows out pump chamber, thus forms the directed driven of fluid.
Claims (3)
1. a mode of resonance piezoelectricity diaphragm pump, it is characterized in that, it is active chamber in the middle part of the pump housing, the pump housing is by pump upper shell, pump intermediate, pump lower shell body one and pump lower shell body two form, be bolted to connection between four, barrier film is located in pump chamber, on it, lower two ends are by seal ring one and seal ring two fixed support, entrance umbrella valve and outlet umbrella valve is fixedly connected with respectively in pump chamber entrance and outlet port, entrance and outlet lay respectively on pump upper shell, piezoelectric vibrator forms by hub-type spring steel plate is bonding with ring-shaped piezo ceramic sheet, piezoelectric vibrator is connected with barrier film by vibration-sensing rod, piezoelectric vibrator periphery is fixedly connected between lower shell body one and lower shell body two, sleeve between piezoelectric vibrator and barrier film and with vibration-sensing rod Spielpassung.
2. mode of resonance piezoelectricity diaphragm pump according to claim 1, is characterized in that, hub-type spring steel plate and ring-shaped piezo ceramic sheet form piezoelectric vibrator.
3. mode of resonance piezoelectricity diaphragm pump according to claim 2, is characterized in that, piezoelectric vibrator and vibration-sensing rod, sleeve, barrier film form excitation system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420698443.8U CN204402805U (en) | 2014-11-13 | 2014-11-13 | A kind of mode of resonance piezoelectricity diaphragm pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420698443.8U CN204402805U (en) | 2014-11-13 | 2014-11-13 | A kind of mode of resonance piezoelectricity diaphragm pump |
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| Publication Number | Publication Date |
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| CN204402805U true CN204402805U (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420698443.8U Expired - Fee Related CN204402805U (en) | 2014-11-13 | 2014-11-13 | A kind of mode of resonance piezoelectricity diaphragm pump |
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| CN (1) | CN204402805U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108136142A (en) * | 2015-07-02 | 2018-06-08 | 北门科技股份有限公司 | Gas recirculation system |
| CN108223339A (en) * | 2016-12-14 | 2018-06-29 | 德尔格制造股份两合公司 | Cavity pump and the method for running cavity pump |
| CN108506197A (en) * | 2017-02-24 | 2018-09-07 | 研能科技股份有限公司 | Fluid delivery system |
| CN110131141A (en) * | 2019-03-03 | 2019-08-16 | 浙江师范大学 | A kind of self-interacting type piezoelectricity medicine delivery pump easy to maintain |
| CN110966177A (en) * | 2019-11-21 | 2020-04-07 | 中国航发西安动力控制科技有限公司 | Oil inlet and outlet valve assembly for diaphragm pump and oil inlet and outlet mechanism |
| CN111779657A (en) * | 2020-06-17 | 2020-10-16 | 长春大学 | Piezoelectric driving type resonance air pump |
| CN112412756A (en) * | 2020-11-18 | 2021-02-26 | 青岛农业大学 | Piezoelectric pump with embedded follow-up umbrella-shaped valve |
| CN113123946A (en) * | 2021-04-26 | 2021-07-16 | 长春工业大学 | A have valve resonance piezoelectric pump for agricultural sprinkling irrigation |
| CN113137363A (en) * | 2021-04-26 | 2021-07-20 | 长春工业大学 | Valveless double-cavity resonance piezoelectric drive type insulin pump |
| CN113565742A (en) * | 2020-12-07 | 2021-10-29 | 长春工业大学 | Magnetic spring piezoelectric stack resonance pump |
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2014
- 2014-11-13 CN CN201420698443.8U patent/CN204402805U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11583641B2 (en) | 2015-07-02 | 2023-02-21 | Northgate Technologies Inc. | Gas recirculation system and method |
| JP2018519921A (en) * | 2015-07-02 | 2018-07-26 | ノースゲート テクノロジーズ インコーポレイテッドＮｏｒｔｈｇａｔｅ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｉｎｃ． | Gas recirculation system |
| CN108136142A (en) * | 2015-07-02 | 2018-06-08 | 北门科技股份有限公司 | Gas recirculation system |
| CN108223339A (en) * | 2016-12-14 | 2018-06-29 | 德尔格制造股份两合公司 | Cavity pump and the method for running cavity pump |
| CN108506197A (en) * | 2017-02-24 | 2018-09-07 | 研能科技股份有限公司 | Fluid delivery system |
| CN110131141A (en) * | 2019-03-03 | 2019-08-16 | 浙江师范大学 | A kind of self-interacting type piezoelectricity medicine delivery pump easy to maintain |
| CN110966177A (en) * | 2019-11-21 | 2020-04-07 | 中国航发西安动力控制科技有限公司 | Oil inlet and outlet valve assembly for diaphragm pump and oil inlet and outlet mechanism |
| CN111779657A (en) * | 2020-06-17 | 2020-10-16 | 长春大学 | Piezoelectric driving type resonance air pump |
| CN112412756A (en) * | 2020-11-18 | 2021-02-26 | 青岛农业大学 | Piezoelectric pump with embedded follow-up umbrella-shaped valve |
| CN113565742A (en) * | 2020-12-07 | 2021-10-29 | 长春工业大学 | Magnetic spring piezoelectric stack resonance pump |
| CN113123946A (en) * | 2021-04-26 | 2021-07-16 | 长春工业大学 | A have valve resonance piezoelectric pump for agricultural sprinkling irrigation |
| CN113137363A (en) * | 2021-04-26 | 2021-07-20 | 长春工业大学 | Valveless double-cavity resonance piezoelectric drive type insulin pump |
| CN113137363B (en) * | 2021-04-26 | 2022-03-29 | 长春工业大学 | Valveless double-cavity resonance piezoelectric drive type insulin pump |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20150617 Termination date: 20151113 |