CN2856480Y - Piezoelectric ceramic liquid pump with IF through dual and one-way valve - Google Patents
Piezoelectric ceramic liquid pump with IF through dual and one-way valve Download PDFInfo
- Publication number
- CN2856480Y CN2856480Y CN 200520071554 CN200520071554U CN2856480Y CN 2856480 Y CN2856480 Y CN 2856480Y CN 200520071554 CN200520071554 CN 200520071554 CN 200520071554 U CN200520071554 U CN 200520071554U CN 2856480 Y CN2856480 Y CN 2856480Y
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- pump
- valve
- piezoelectric ceramic
- water
- pump body
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Abstract
The utility model relates to a pump, especially a power frequency direct connection double check valve piezoelectric ceramic liquid pump. The pump comprises a pump body, a piezoelectric ceramic vibrator disposed in the pump body, a water inlet and a water outlet arranged on the pump body, a driving power source equipped on outside of the pump body for driving the piezoelectric ceramic vibrator. The pump is characterized in that: a water intake valve is disposed on the water inlet inside the pump body, and a water discharge valve is disposed on the water outlet inside the pump body; the relation of the height H and the inner diameter D of the water inlet and outlet meet the formula H=1.6D. By applying double inversely mounted check valve, the utility model improves the allowable working efficiency of the pump valve, ensures the stability and continuity of the flux, and improves the using reliability of the pump; by applying the particular sealing technology, the utility model reinforces the electric security of the pump and is applicable for the quantifications of medical and chemical, water supply devices, mechanical hydro dynamic driving sources, the cooling power source for electronic equipments and computers and amusements.
Description
Affiliated technical field
The utility model relates to a kind of pump, and especially a kind of straight-throughly have a valve piezoelectric constant liquid pump by what two reverse one-way valves were formed.
Background technique
The piezoelectric ceramic pump of prior art generally adopts the input and output of one-way valve control fluid.Comprising that two one-way valves, the pump housing, piezoelectric ceramic vibrator feed elongation takes place behind the electric current of alternation and shrinks, the feasible inner chamber body volume generating period variation that is closed with the one side of two one-way valves, when piezoelectric ceramic vibrator elongation causing pump housing inner chamber body volume increases, water outlet (OUTPUT) closed check valve, water intake (INPUT) one-way valve pressurized is opened, and fluid sucks in the cavity from water intake; Otherwise, when the piezoelectric ceramic vibrator contraction causes that pump housing inner chamber body volume reduces, water intake (INPUT) closed check valve, water outlet (OUTPUT) one-way valve pressurized is opened, and fluid flows out from water outlet.Because its vibrational period is the industrial-frequency alternating current frequency, frequency is higher, is difficult for capturing the intermittent time signal usually, so what can see is that the fluid of continuous regime flow is flowing.The problem that prior art exists: common mitre velve piezoelectric constant water pump, flow is little, water intake (INPUT) is when the pump chamber volume reduces, arranging a part of liquid goes out, and water outlet can suck back a part to the liquid of discharging when cavity volume increases, influence its input, output flow, single one-way valve structures is simple, but there is hysteresis quality in pump valve, and fluid is flowed through has intermittency behind the kinetic pump, more easily enter air in the pump housing, increase compressible coefficient, the volume of air in the final cavity greatly to a certain degree, the water outlet no liquid of pump flows out, need manually to start once more just can keep, the continued reliability work of the pump that single one-way valve is made into is relatively poor.
Summary of the invention
The purpose of this utility model is: overcome the shortcoming of prior art, provide a kind of reliable and stable and operating frequency range (40-85Hz) broad, fluid continuous-flow be the pump of power source with the piezoelectric constant.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of straight-through double check valve piezoelectric constant liquid pump, have the pump housing, in the pump housing, be provided with piezoelectric ceramic vibrator, the pump housing is provided with water intake and water outlet, be outside equipped with driving power at the pump housing, driving power drives piezoelectric ceramic vibrator, it is characterized in that: the place is provided with inlet valve at pump housing inner inlet mouth, and the water outlet place is provided with outlet valve.
Further: the height H and the inside diameter D of water intake and water outlet satisfy H=1.6D.
Further: inlet valve and outlet valve are made up of valve block, valve and rivet, and valve block and valve are fixed together by rivet.
Again further: the pump housing is provided with free vent hole.
Good effect of the present utility model: adopting two reverse one-way valves composition power frequencies to lead directly to has valve type piezoelectric ceramic pump, the impact force problem that has produced when having overcome problem that single one-way valve can not work and open and close under upper frequency, and the empty problem of filling during the long-time continuous operation.Adopt double check valve oppositely to put dress, make liquid entering hole and liquid outlet can work under upper frequency and guarantee that fluid flow is stable, continuous-flow, overcome can not moving by high frequency of prior art, fluid flow is interrupted, technical problems such as the sealing of piezoelectric ceramic vibrator have improved the operational safety of pump, and structure, make simple, low cost of manufacture is easy for installation in addition.Because the raising of its reliability, can health care, chemistry, chemical industry quantitatively, water supply device, mechanical fluid power driving source, the cooling power source of electronic equipment and computer is viewed and admired amusement and is used etc.In addition the utility model can not produce electromagnetic interference, has the working stability height, characteristics such as flow is big, pressure is strong, lift height.
Description of drawings
Fig. 1 overall structure figure of the present utility model
Fig. 2 fluid suction process of the present utility model schematic representation
Fig. 3 fluid of the present utility model process schematic representation that spues
Fig. 4 water-in and water-out valve schematic representation
Among the figure: 1. the pump housing 2. piezoelectric ceramic vibrators 3. water intakes 4. water outlets 5. driving powers 6. inlet valves 7. outlet valves 8. valve blocks 9. valves 10. rivets 11. free vent holes
Embodiment
In conjunction with the accompanying drawings the utility model is further specified.
The utility model concrete structure is as shown in Figure 1: have the pump housing 1, be provided with piezoelectric ceramic vibrator 2 in the pump housing 1, the pump housing 1 is provided with water intake 3 and water outlet 4, be outside equipped with driving power 5 at the pump housing 1, driving power 5 drives piezoelectric ceramic vibrator 2,3 places are provided with inlet valve 6 at pump housing inner inlet mouth, water outlet 4 places are provided with outlet valve 7, inlet valve 6 and outlet valve 7 are two mushroom-like one-way valves, in order to make the piezoelectric ceramic vibrator 2 can free vibration in the pump housing 1, also be provided with free vent hole 11 on the pump housing 1 in addition.
The concrete structure of inlet valve 6 and outlet valve 7 is made up of valve block 8, valve 9 and rivet 10 as shown in Figure 4, and valve block 8 is fixed together by rivet 10 with valve 9.
The pump housing 1 adopts metal or nonmetal resistant material to make, can be according to the suitable specification of different choice of the actual series of product.Piezoelectric ceramic vibrator 2 select for use meet NBS, industry standard, reinforcement standard or select according to special requirement.Water inlet and outlet joint and pump cover are connected as a single entity, and its pipe inner diameter is chosen as D=6mm, highly is chosen as H=9.6mm, can suitably select according to the requirement of different specification products, and the selection of the internal diameter of pipe and height should be followed H=1.6D.
Working principle of the present utility model:
(1) suction process
Figure 2 shows that the fluid suction process of pump, the piezoelectric ceramic vibrator 2 of the good seal that the edge is fixing under the effect of the positive half cycle of alternating electric field, produce upward to distortion, the inner chamber body volume of pump is increased, the cavity volume of pump also along with piezoelectric vibrator 2 upward to distortion and increase, pressure in the pump chamber is less than outside pressure at this moment, fluid is forced to compress into pump chamber, and pump chamber inner volume increase this moment value equals to suck the volume V1 of liquid.
(2) process that spues
The fluid that the Figure 3 shows that pump process that spues, the piezoelectric ceramic vibrator 2 of the good seal that the edge is fixing produces downward direction under the effect of alternating electric field negative half period distortion, the inner chamber body volume of pump is reduced, the cavity volume of pump also reduces along with the distortion of piezoelectric vibrator 2 downward directions, pressure in the pump chamber is greater than outside pressure at this moment, fluid is urged the pump chamber that spues, and the pump chamber inner volume reduced to be worth and equaled to spue the volume V of liquid this moment
Go out, theoretical value V
Go out＞V
Go into, since the hysteresis quality of pump valve, V
Go into≈ V
Go out, the volume of the fluid that promptly spues equals to suck the volume of fluid.
Claims (4)
1. a power frequency leads directly to double check valve piezoelectric constant liquid pump, it is characterized in that: have the pump housing (1), in the pump housing (1), be provided with piezoelectric ceramic vibrator (2), the pump housing (1) is provided with water intake (3) and water outlet (4), be outside equipped with driving power (5) at the pump housing (1), driving power (5) drives piezoelectric ceramic vibrator (2), locate to be provided with inlet valve (6) at the pump housing (1) inner inlet mouth (3), water outlet (4) locates to be provided with outlet valve (7).
2. power frequency according to claim 1 leads directly to double check valve piezoelectric constant liquid pump, it is characterized in that: the height H and the inside diameter D of described water intake (3) and water outlet (4) satisfy H=1.6D.
3. power frequency according to claim 1 leads directly to double check valve piezoelectric constant liquid pump, it is characterized in that: described inlet valve (6) and outlet valve (7) are made up of valve block (8), valve (9) and rivet (10), and valve block (8) is fixed together by rivet (10) with valve (9).
4. power frequency according to claim 1 leads directly to double check valve piezoelectric constant liquid pump, and it is characterized in that: the described pump housing (1) is provided with free vent hole (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520071554 CN2856480Y (en) | 2005-05-10 | 2005-05-10 | Piezoelectric ceramic liquid pump with IF through dual and one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520071554 CN2856480Y (en) | 2005-05-10 | 2005-05-10 | Piezoelectric ceramic liquid pump with IF through dual and one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2856480Y true CN2856480Y (en) | 2007-01-10 |
Family
ID=37599788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520071554 Expired - Fee Related CN2856480Y (en) | 2005-05-10 | 2005-05-10 | Piezoelectric ceramic liquid pump with IF through dual and one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2856480Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011017862A1 (en) * | 2009-08-10 | 2011-02-17 | 杨竹君 | Piezoceramics pump for electronic product and cpu radiating and cooling system |
| CN103557143A (en) * | 2013-11-12 | 2014-02-05 | 苏州大学 | Closed loop piezoelectric membrane pump and flow control method thereof |
-
2005
- 2005-05-10 CN CN 200520071554 patent/CN2856480Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011017862A1 (en) * | 2009-08-10 | 2011-02-17 | 杨竹君 | Piezoceramics pump for electronic product and cpu radiating and cooling system |
| CN103557143A (en) * | 2013-11-12 | 2014-02-05 | 苏州大学 | Closed loop piezoelectric membrane pump and flow control method thereof |
| CN103557143B (en) * | 2013-11-12 | 2016-03-02 | 苏州大学 | Closed-loop piezoelectric film pump and flow control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070110 Termination date: 20100510 |