CN203796531U - Novel laminated type piezoelectric diaphragm pump - Google Patents
Novel laminated type piezoelectric diaphragm pump Download PDFInfo
- Publication number
- CN203796531U CN203796531U CN201420229549.3U CN201420229549U CN203796531U CN 203796531 U CN203796531 U CN 203796531U CN 201420229549 U CN201420229549 U CN 201420229549U CN 203796531 U CN203796531 U CN 203796531U
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- valve block
- valve
- outlet valve
- piezoelectric vibrator
- middleware
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Abstract
The utility model relates to a novel laminated type piezoelectric diaphragm pump. The novel laminated type piezoelectric diaphragm pump comprises a pump body, a valve block, middleware, a cavity component, a piezoelectric vibrator and an upper cover, wherein the upper cover is connected with the pump body; the valve block, the middleware, the cavity component and the piezoelectric vibrator are arranged in a cylindrical groove of the pump body sequentially from bottom to top; the valve block and the cavity component which are made of elastic rubber materials are compressed for sealing, so that a pump cavity connected with an inlet valve and an outlet valve is formed; the pump cavity is connected with an inlet pipe through the inlet valve and is connected with an outlet pipe through the outlet valve. When in work, the piezoelectric vibrator generates reciprocating vibration under the action of alternating voltage, the size of the pump cavity increases or decreases accordingly, and fluid flows in from the inlet pipe and flows out from the outlet pipe after the pump cavity is combined with the inlet valve and the outlet valve. The novel laminated type piezoelectric diaphragm pump has the advantages of being simple in structure, low in requirement for machining precision of parts, and capable of being conveniently produced on a large scale.
Description
Technical field
The utility model belongs to fluid transportation art, is specifically related to a kind of Novel stack laminar piezoelectricity diaphragm pump 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 is in microminiaturization and Digital Control and the advantage such as the life-span is long, have wide practical use in instrument and apparatus, detection facility and mechano-electronic field.Unusual two classes that are divided into that piezoelectricity diaphragm pump forms according to valve, there are valve piezoelectricity diaphragm pump and Valveless piezoelectric diaphragm pump, there is valve piezoelectricity barrier film pump performance far above Valveless piezoelectric diaphragm pump, therefore in traditional application, have more advantage, and Valveless piezoelectric diaphragm pump because forming, it is simply convenient to microminiaturized feature and is mainly used in micro-fluidic field.The current valve piezoelectricity diaphragm pump that has comprises ball valve piezoelectricity diaphragm pump, umbrella valve piezoelectricity diaphragm pump, wheeled valve piezoelectricity diaphragm pump, fish-mouth valve piezoelectricity diaphragm pump and cantilever valve piezoelectricity diaphragm pump etc. type, wherein cantilever valve piezoelectricity diaphragm pump has relatively simple structure, be widely adopted, the mode that general employing is bonding or seal ring is fixing in cantilever valve is installed, the assembly process complexity that causes pump, is not easy to mass automatic production.
Summary of the invention
In order to solve the complicated problem that is not easy to mass automatic production of overhang assembling in current cantilever valve piezoelectricity diaphragm pump, a kind of Novel stack laminar piezoelectricity diaphragm pump has been proposed, the valve block of this piezoelectricity diaphragm pump, middleware, cavity part, piezoelectric vibrator are arranged between the pump housing and upper cover successively, form the pump housing, inlet valve and three functional zone of outlet valve, this arrangement position location is few, requirement on machining accuracy to each element is low, simple and the each parts of assembly process technique are easy to change, and are convenient to large-scale automatic production.
To achieve these goals, the utility model is by the following technical solutions:
A kind of Novel stack laminar of the utility model is pressed barrier film electric pump, comprises the pump housing, valve block, middleware, cavity part, piezoelectric vibrator and upper cover, wherein:
Valve block is on a rubber material thin slice, to be furnished with import valve block and outlet valve block, contact a side with valve block joint with entrance valve seat mounting hole at entrance valve block and be furnished with inlet valve film trap simultaneously, contact a side with valve block joint with outlet valve seat mounting hole at outlet valve block and be furnished with outlet valve film trap, after can effectively reducing to install, described inlet valve film trap and outlet valve film trap due to compressed the produced localized stress of rubber parts, can avoid installing rear valve block warpage;
Described valve block upside is furnished with middleware, and after installing, middleware and cavity part are pressed on entrance valve block place by valve block and form inlet valve, and in outlet, valve block place forms outlet valve, after other position compresses, forms seal area; On the middleware corresponding with entrance valve block, be furnished with inlet valve open hole, on the corresponding pump housing, be furnished with entrance valve seat orifice, the two and entrance valve block form inlet valve jointly, when work there is the bending deflection to inlet valve open hole direction in entrance valve block cantilever, inlet valve is opened, fluid can flow into inlet valve open hole by the entrance valve seat orifice on the pump housing, flows into cavity part through middleware; On the middleware corresponding with outlet valve block, be furnished with outlet valve seat orifice, on the corresponding pump housing, be furnished with outlet valve open hole, jointly form outlet valve with outlet valve block, when work there is the bending deflection to outlet valve open hole direction in outlet valve cantilever, outlet valve is opened, and fluid can flow into outlet valve open hole by the outlet valve seat orifice on middleware and flow out from cavity part; Described entrance valve seat orifice is furnished with entrance valve block corresponding position the entrance valve seat groove that a degree of depth is identical with valve block reduced size, and described outlet valve seat orifice arranges with outlet valve block corresponding position the outlet valve seat groove that a degree of depth is identical with valve block reduced size;
Middleware uses non-elastic material manufacture, for compressing the sealing of valve block feasible region, outlet valve and inlet valve is separated, cavity part adopts rubber material manufacture, cavity part is combined a side and is adopted umbilicate curved-surface structure with piezoelectric vibrator, can reduce primary pump cavity volume, effectively increase the compression ratio of piezoelectricity diaphragm pump, simultaneously owing to having adopted rubber material, after oscillator distortion contacts with the curved surface of cavity part, its impact force can be absorbed by rubber material, the face that opposite side is combined with middleware is plane, guarantee fits tightly with middleware, edge one side of cavity part contacts with piezoelectric vibrator, one side contacts with middleware, after installation, realize the sealing between middleware and piezoelectric vibrator, described cavity part is at middleware inlet valve open hole, outlet valve seat orifice and the corresponding position between the two are furnished with guiding gutter, so that fluid flowing in pump chamber, piezoelectric vibrator is by elastic sheet and piezoelectric material thin slice is laminated makes, after described piezoelectric vibrator, cavity part, middleware sealing, form sealing pump chamber, be communicated with inlet duct by inlet valve, be communicated with outer pipe by outlet valve, pump body comprises a cylinder shape groove, upper cover and the pump housing are installed, described valve block, middleware, cavity part and piezoelectric vibrator are arranged in described cylinder shape groove, and by upper cover, its compression is realized to the sealing between each part, in cylinder shape groove, be furnished with the degrees of freedom that at least one locating stud rotates along inner cylinder connected in star with the each part of restricted internal, the entrance valve seat orifice that cylinder shape groove bottom is arranged is communicated with inlet duct, and outlet valve open hole is communicated with outer pipe, on described valve block, middleware, cavity part, be furnished with the positioning hole corresponding with locating stud on the pump housing.
When work, there is reciprocal bending deflection in piezoelectric vibrator under the effect of alternating voltage, and the volume of cavity increases along with the motion of piezoelectric vibrator or reduces.When pump chamber volume increases, inlet valve is opened, and outlet valve cuts out, and fluid enters pump chamber from flow through inlet valve, middleware, cavity part of inlet duct; When pump chamber volume reduces, inlet valve cuts out, and outlet valve is opened, and fluid is from pump chamber flow through cavity part, middleware, outlet valve, flows out and completes a work cycle, the ability of formation pumping fluid from outer pipe.
Brief description of the drawings
Fig. 1 is a kind of Novel stack laminar of the utility model piezoelectricity diaphragm pump structure schematic diagram.
Fig. 2 is a kind of typical structure of the utility model middle pump body.
Fig. 3 is a kind of typical structure of the valve block that uses in the utility model.
Fig. 4 is a kind of typical structure of the middleware that uses in the utility model.
Fig. 5 is a kind of typical structure that uses cavity part in the utility model.
Fig. 6 is a kind of typical structure of the piezoelectric vibrator that uses in the utility model.
Embodiment
With reference to Fig. 1, Novel stack laminar piezoelectricity diaphragm pump of the present utility model is to be made up of the pump housing 1, valve block 2, middleware 3, cavity part 4, piezoelectric vibrator 5 and upper cover 6, wherein:
The pump housing 1 (simultaneously with reference to Fig. 2) the columniform groove 16 of center arrangement one, on groove 16 bottom surfaces, arrange entrance valve seat orifice 11, outlet valve open hole 12 and the locating stud 13 perpendicular to groove floor 161, wherein entrance valve seat orifice 11 is communicated with inlet duct 14, outlet valve open hole 12 is communicated with outer pipe 15, and described entrance valve seat orifice 11 is furnished with entrance valve block 21 corresponding positions the entrance valve seat groove 111 that a degree of depth is identical with valve block 2 reduced size;
Valve block 2 (simultaneously with reference to Fig. 3) is a thin rounded flakes that rubber material is made, in this thin rounded flakes, be furnished with entrance valve block 21, outlet valve block 22 and valve block positioning hole 23, described entrance valve block 21 forms by the through hole 24 of arranging the first semicircle annular on valve block 2, described outlet valve block 22 forms by arrange the second semicircle annular through-hole 25 on valve block 2, described valve block positioning hole 23 positions are corresponding with the locating stud 13 on the pump housing, described valve block 2 one sides contact with the bottom surface 161 of the pump housing 1, opposite side contacts with the bottom surface of middleware 3, after assembling, clamped by the pump housing 1 and middleware 3, except entrance valve block 21, outlet valve block 22 and positioning hole 23 are with the compacted formation sealing of external position, be furnished with inlet valve film trap 211 in entrance valve block 21 and valve block 2 joints to the pump housing 1 one sides, be furnished with outlet valve film trap 221 with valve block 2 joints to middleware one side at outlet valve block 22,
Middleware 3 (simultaneously with reference to Fig. 4) is the thin rounded flakes being made up of rigid material, be furnished with inlet valve open hole 31, outlet valve seat orifice 32 and middleware positioning hole 33, form inlet valve 7 and outlet valve 8 with valve block 2 and the pump housing 1, described outlet valve seat orifice 32 arranges with outlet valve block 22 corresponding positions the outlet valve seat groove 321 that a degree of depth is identical with valve block 2 reduced size;
Described inlet valve 7 is made up of the entrance valve block 21 on entrance valve seat orifice 11, valve block 2 on the pump housing 1 and the inlet valve open hole 31 on middleware 3, fluid can only flow from entrance valve seat orifice 11 to inlet valve open hole 31 directions, described outlet valve 8 is made up of the outlet valve block 22 on outlet valve seat orifice 32, valve block 2 on middleware 3 and the outlet valve open hole 12 on the pump housing 1, and fluid can only flow to outlet valve open hole 12 directions from outlet valve seat orifice 32;
Cavity part 4 (simultaneously with reference to Fig. 5) is made up of elastic rubber material, with a side surface of piezoelectric vibrator 5 combinations be umbilicate curved surface 41, the face of opposite side and middleware 3 combinations is plane, the edge 44 of cavity part 4 contacts with piezoelectric vibrator 5, support piezoelectric vibrator 5, be furnished with guiding gutter 42 between the inlet valve open hole 31 of middleware 3 and outlet valve seat orifice 32 corresponding positions and the two, described piezoelectric vibrator 5 forms the pump chamber 9 sealing with the curved surface 41 of cavity part 4 after its edge 44 sealings, be communicated with inlet duct 14 by inlet valve 7, be communicated with outer pipe 15 by outlet valve 8,
Piezoelectric vibrator 5 (simultaneously with reference to Fig. 6) is made up of piezoelectric material thin slice 51 and elastic base plate 52.Upper cover 6 is connected with the pump housing 1, the valve block 2, middleware 3, cavity part 4 and the piezoelectric vibrator 5 that pack into successively in the pump housing 1 are compressed with the pump housing 1, the valve block 2, the cavity part 4 that are made up of elastic rubber material compress the rear sealing area that forms, described locating stud 13 coordinates with valve block positioning hole 23, middleware positioning hole 33 and cavity part positioning hole 43, completes the assembling of Novel stack laminar piezoelectricity diaphragm pump.
Claims (4)
1. a Novel stack laminar piezoelectricity diaphragm pump, comprise: the pump housing (1), valve block (2), middleware (3), cavity part (4), piezoelectric vibrator (5) and upper cover (6), wherein: the groove (16) that is furnished with a cylinder type on the described pump housing (1), on the bottom surface (161) of groove (16), be furnished with entrance valve seat orifice (11) and outlet valve open hole (12), upper cover (6) is connected with the pump housing (1), valve block (2), middleware (3), cavity part (4) and piezoelectric vibrator (5) are arranged in the cylinder shape groove (16) of the pump housing (1) from down to up successively, described valve block (2) is a sheeting material, is furnished with entrance valve block (21) and outlet valve block (22), is arranged on the bottom surface (161) of the cylinder shape groove (16) on the pump housing (1), on described middleware (3), be furnished with inlet valve open hole (31) and outlet valve seat orifice (32), be arranged in described cylinder shape groove (16) and be arranged in valve block (2) top, described cavity part (4) one sides contact with middleware (3), and opposite side contacts with piezoelectric vibrator (5), feature is: upper cover (6) install after the valve block (2) made by elastic rubber material and cavity part (4) is compressed forms sealing, described entrance valve block (21) will form inlet valve (7) after valve block (2) press seal with the upper entrance valve seat orifice (11) of arranging of the pump housing (1) and the upper inlet valve open hole (31) of arranging of middleware (3) at middleware (3), described outlet valve block (22) forms outlet valve (8) with the upper outlet valve seat orifice (32) of arranging of middleware (3) and the upper outlet valve open hole (12) of arranging of the pump housing (1), described cavity part (4) is connected a side surface with piezoelectric vibrator (5) be umbilicate curved surface (41), the pump chamber (9) that the edge (44) of cavity part (4) contacts with piezoelectric vibrator (5) and compacted rear formation is encircled a city by cavity part (4) and piezoelectric vibrator (5), described pump chamber (9) is connected with inlet duct (14) by inlet valve (7), be connected with outer pipe (15) by outlet valve (8), described piezoelectric vibrator (5) produces double vibrations under alternating voltage effect, pump chamber (9) volume increases thereupon or reduces, after inlet valve (7) and outlet valve (8) combination, fluid flows into from inlet duct (14), flow out from outer pipe (15).
2. Novel stack laminar piezoelectricity diaphragm pump according to claim 1, it is characterized in that: the entrance valve block (21) on described valve block (2) is by forming at the upper through hole (24) of arranging the first semicircle annular of valve block (2), outlet valve block (22) is by forming at upper layout the second semicircle annular through-hole (25) of valve block (2), be furnished with inlet valve film trap (211) in entrance valve block (21) and valve block (2) joint simultaneously, be furnished with outlet valve film trap (221) in outlet valve block (22) and valve block (2) joint.
3. Novel stack laminar piezoelectricity diaphragm pump according to claim 1, it is characterized in that: described entrance valve seat orifice (11) is furnished with entrance valve block (21) corresponding position the entrance valve seat groove (111) that a degree of depth is identical with valve block (2) reduced size, described outlet valve seat orifice (32) arranges with outlet valve block (22) corresponding position the outlet valve seat groove (321) that a degree of depth is identical with valve block (2) reduced size.
4. Novel stack laminar piezoelectricity diaphragm pump according to claim 1, it is characterized in that: described piezoelectric vibrator (5) can adopt by a slice piezoelectric sheet material (51) and stick on the upper single-chip piezoelectric vibrator forming of elastic base plate (52), also can adopt by two piezoelectric sheet materials (52) and stick on the twin lamella piezoelectric vibrator that elastic base plate (52) both sides form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420229549.3U CN203796531U (en) | 2014-05-06 | 2014-05-06 | Novel laminated type piezoelectric diaphragm pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420229549.3U CN203796531U (en) | 2014-05-06 | 2014-05-06 | Novel laminated type piezoelectric diaphragm pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203796531U true CN203796531U (en) | 2014-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420229549.3U Withdrawn - After Issue CN203796531U (en) | 2014-05-06 | 2014-05-06 | Novel laminated type piezoelectric diaphragm pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203796531U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925199A (en) * | 2014-05-06 | 2014-07-16 | 吉林大学 | Novel laminated piezoelectric diaphragm pump |
| CN106762566A (en) * | 2016-12-28 | 2017-05-31 | 南京航空航天大学 | Semi-flexible valve piezoelectric pump and its method of work |
| CN108105050A (en) * | 2018-01-31 | 2018-06-01 | 吉林大学 | A kind of droplet pump of variation rigidity piezoelectric vibrator driving |
| CN108506197A (en) * | 2017-02-24 | 2018-09-07 | 研能科技股份有限公司 | Fluid delivery system |
| CN109723626A (en) * | 2017-10-27 | 2019-05-07 | 研能科技股份有限公司 | Air transporting arrangement |
| TWI755307B (en) * | 2021-03-24 | 2022-02-11 | 研能科技股份有限公司 | Thin gas transportation device |
-
2014
- 2014-05-06 CN CN201420229549.3U patent/CN203796531U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103925199A (en) * | 2014-05-06 | 2014-07-16 | 吉林大学 | Novel laminated piezoelectric diaphragm pump |
| CN103925199B (en) * | 2014-05-06 | 2016-06-15 | 吉林大学 | A kind of Novel stack laminar piezoelectricity membrane pump |
| CN106762566A (en) * | 2016-12-28 | 2017-05-31 | 南京航空航天大学 | Semi-flexible valve piezoelectric pump and its method of work |
| CN106762566B (en) * | 2016-12-28 | 2018-12-07 | 南京航空航天大学 | Valve piezoelectric pump semi-flexible and its working method |
| CN108506197A (en) * | 2017-02-24 | 2018-09-07 | 研能科技股份有限公司 | Fluid delivery system |
| CN109723626A (en) * | 2017-10-27 | 2019-05-07 | 研能科技股份有限公司 | Air transporting arrangement |
| CN108105050A (en) * | 2018-01-31 | 2018-06-01 | 吉林大学 | A kind of droplet pump of variation rigidity piezoelectric vibrator driving |
| CN108105050B (en) * | 2018-01-31 | 2024-04-05 | 吉林大学 | Variable-rigidity piezoelectric vibrator driven micro-drop pump |
| TWI755307B (en) * | 2021-03-24 | 2022-02-11 | 研能科技股份有限公司 | Thin gas transportation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140827 Effective date of abandoning: 20160615 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |