CN110207016A - Trace liquid transfer device and trace liquid transfer system - Google Patents
Trace liquid transfer device and trace liquid transfer system Download PDFInfo
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- CN110207016A CN110207016A CN201910584868.3A CN201910584868A CN110207016A CN 110207016 A CN110207016 A CN 110207016A CN 201910584868 A CN201910584868 A CN 201910584868A CN 110207016 A CN110207016 A CN 110207016A
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- 239000007788 liquid Substances 0.000 title claims abstract description 278
- 239000000919 ceramic Substances 0.000 claims abstract description 28
- 230000007704 transition Effects 0.000 claims description 15
- 230000002209 hydrophobic effect Effects 0.000 claims description 10
- 239000012530 fluid Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 description 6
- 238000010079 rubber tapping Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000013518 transcription Methods 0.000 description 2
- 230000035897 transcription Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/14—Conveying liquids or viscous products by pumping
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- Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention discloses a micro liquid transfer device and a micro liquid transfer system, the micro liquid transfer device comprises a piezoelectric ceramic pump, a first connector and a second connector, two opposite side walls of the piezoelectric ceramic pump are respectively provided with a liquid inlet and a liquid outlet, the piezoelectric ceramic pump can adjust the liquid flow of the liquid inlet and the liquid outlet by adjusting the voltage and the frequency of the piezoelectric ceramic pump, the first connector is connected with one liquid inlet and one liquid outlet, the second connector is connected with the other liquid inlet and the other liquid inlet, the second connector comprises a connecting part and a liquid inlet and outlet part, one end of the connecting part is connected with the liquid inlet and outlet, the connecting part is provided with a connecting channel communicated with the liquid inlet and outlet, the liquid inlet and outlet part is connected with the connecting part, and a liquid inlet and outlet gap with a strip-shaped vertical section is formed on the liquid inlet and outlet part, and the liquid inlet and outlet gap is communicated with the connecting channel. The micro-liquid transfer device is simple in structure and can realize accurate liquid transfer.
Description
Technical field
The present invention relates to liquid transcription device fields more particularly to a kind of micro liquid transfer device and micro liquid to shift
System.
Background technique
It is existing in order to which indivisible drop is precisely injected into specific position or a small amount of drops is sucked out from specific position
Having technology is mostly that pneumatic liquid pump or syringe pump is used to realize, wherein pneumatic liquid pump is adjusted by adjusting the size of air pressure
The flow velocity and flow of liquid, but a flow sensor Real-time Feedback tune is generally required in the actual use of pneumatic liquid pump
Section will cause regulating time length in this way, flow exports often bigger and unstable problem.Although and syringe pump can be accomplished
Precisely output, but can not export for a long time, when the liquid depletion in syringe, need to remove syringe and draw liquid again and just may be used
Continue to operate.
In addition, two kinds of equipment is bulky, it is not easy to it is integrated in other equipment, if needing multiple outputs simultaneously,
Then need multiple equipment in parallel, it is extremely inconvenient in actual operation, and also price is often also more expensive.Meanwhile the prior art
Output pipe be mostly existing silicone tube etc. on the market, vertical section product is larger, can not be deep into smaller gap
Face limits the scope of application of above equipment
Summary of the invention
It is an object of the invention to propose a kind of micro liquid transfer device, the structure letter of the micro liquid transfer device
It is single, it can be realized more accurately liquid transfer.
It is another object of the present invention to propose a kind of micro liquid transfer system with the micro liquid transfer device
System, the small volume of the micro liquid transfer system, convenient for being integrated in other equipment.
In order to realize the above technical effect, technical scheme is as follows:
A kind of micro liquid transfer device, comprising: piezoelectric ceramic pump, in the opposite two side walls of the piezoelectric ceramic pump point
Not She You liquid entrance, the piezoelectric ceramic pump can adjust the liquid of the liquid entrance by adjusting its voltage and frequency
Flow；First connector, first connector are connected with liquid entrance described in one of them；Second connector, described
Two connectors are connected with liquid entrance described in another, and second connector includes: interconnecting piece, one end of the interconnecting piece
It is connected with the liquid entrance, the interconnecting piece has the interface channel being connected to the liquid entrance；Liquid disengaging portion,
Liquid disengaging portion is connected with the interconnecting piece, and liquid disengaging portion is formed as plate, and shape in liquid disengaging portion
At there is the liquid that vertical section is bar shaped to pass in and out gap, liquid disengaging gap is connected with the interface channel.
In some embodiments, the height in liquid disengaging gap is 0.06mm-0.1mm.
In some embodiments, the inner sidewall and lateral wall in liquid disengaging gap are equipped with hydrophobic layer.
In some embodiments, the one end of the interconnecting piece being connected with the liquid entrance is located at the interconnecting piece
The top of the one end being connected with liquid disengaging portion.
In some specific embodiments, the interconnecting piece is L-type pipeline.
In some more specific embodiments, second connector further include: transfer block, the transfer block are connected to institute
It states between interconnecting piece and liquid disengaging portion, the transfer block is equipped with Switching-through channel, one end of the Switching-through channel and institute
Interface channel connection is stated, the other end of the Switching-through channel is connected with liquid disengaging gap.
In some embodiments, liquid disengaging portion close to one end of the interconnecting piece width be greater than the liquid into
The one end of portion far from the interconnecting piece out.
In some specific embodiments, liquid disengaging portion includes flat plate section and converging transition, and the one of the flat plate section
End is connected with the interconnecting piece, and the other end of the flat plate section is connected with the converging transition, the vertical section product of the converging transition
It is gradually reduced on the direction far from the flat plate section.
In some embodiments, two opposite side walls of the piezoelectric ceramic pump are equipped with liquid inlet/outlet pipe, and described the
One connector is set on one of them described liquid inlet/outlet pipe, and second connector passes through connecting tube and another described liquid
Body inlet/outlet pipe is connected.
A kind of micro liquid transfer system, including micro liquid transfer device described previously, the micro liquid transfer dress
It is set to multiple, multiple micro liquid transfer devices are arranged in the horizontal direction, and each micro liquid transfer device can
Individually control.
Micro liquid transfer device of the invention is realized due to the power source shifted using piezoelectric ceramic pump as liquid
More accurately liquid shifts, and eliminates the structure that the measuring devices such as flowmeter simplify micro liquid transfer device.
Further, since liquid disengaging portion is formed as plate, and liquid disengaging portion is formed with the liquid that vertical section is bar shaped and passes in and out gap,
So that the liquid disengaging portion of plate is inserted into slit to realize that the transfer of the liquid in slit turns to expand micro liquid
The scope of application of moving device, to better meet the use demand of user.
Micro liquid of the invention shifts dress system, due to reducing with previously described micro liquid transfer device
Micro liquid transfer dress system obtains volume, makes it easy to be integrated in other equipment.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
The structural schematic diagram for the micro liquid transfer device that the specific embodiment of the invention provides when Fig. 1.
Fig. 2 is the cross-sectional view for the micro liquid transfer device that the specific embodiment of the invention provides.
Fig. 3 is the cross-sectional view for the second connector that the specific embodiment of the invention provides.
Fig. 4 is the structural schematic diagram for the micro liquid transfer system that the specific embodiment of the invention provides.
Appended drawing reference:
1, piezoelectric ceramic pump；11, liquid inlet/outlet pipe；111, liquid entrance；
2, the first connector；
3, the second connector；
31, interconnecting piece；311, interface channel；
32, liquid disengaging portion；32a, liquid pass in and out gap；321, flat plate section；322, converging transition；
33, transfer block；331, Switching-through channel；
4, connecting tube.
Specific embodiment
To keep the technical problems solved, the adopted technical scheme and the technical effect achieved by the invention clearer, below
In conjunction with attached drawing and pass through specific embodiment to further illustrate the technical scheme of the present invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " width ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, defining " first ", the feature of " second " can explicitly or implicitly include one or more be somebody's turn to do
Feature, for distinguishing Expressive Features, point of out-of-order, point of no weight.In the description of the present invention, unless otherwise indicated, " more
It is a " it is meant that two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
The specific structure of the micro liquid transfer device of the embodiment of the present invention is described below with reference to Fig. 1-Fig. 3.
As shown in Figure 1-Figure 3, the micro liquid transfer device of the embodiment of the present invention includes that piezoelectric ceramic pump 1, first connects
First 2 and second connector 3, liquid entrance 111, piezoelectric ceramic pump 1 are respectively equipped in the opposite two side walls of piezoelectric ceramic pump 1
Can by adjusting the fluid flow of its voltage and frequency adjustment liquid entrance 111, the first connector 2 and one of liquid into
Outlet 111 is connected, and the second connector 3 is connected with another liquid entrance 111, and the second connector 3 includes interconnecting piece 31 and liquid
The one end in body disengaging portion 32, interconnecting piece 31 is connected with liquid entrance 111, and interconnecting piece 31 has to be connected to liquid entrance 111
Interface channel 311, liquid disengaging portion 32 is connected with interconnecting piece 31, and liquid disengaging portion 32 is formed as plate, and liquid disengaging portion
It is formed with the liquid that vertical section is bar shaped on 32 and passes in and out gap 32a, liquid disengaging gap 32a is connected with interface channel 311.
It is understood that the piezoelectric ceramic pump 1 that micro liquid transfer device of the invention uses, user can bases
The fluid flow of voltage and frequency the adjustment liquid entrance 111 of piezoelectric ceramic pump 1, to ensure that micro liquid transfer dress
The liquid transfer precision set, compares existing pneumatic liquid pump, piezoelectric ceramic pump 1 has higher reliability, avoids liquid
Biggish fluctuation occurs for the flow of liquid in transfer process.In addition, the power source shifted using piezoelectric ceramic pump 1 as liquid,
It no longer needs to install flowmeter additional, simplifies the structure of micro liquid transfer device, the person of being convenient to use uses, consequently facilitating user
Micro liquid transfer device is integrated into other equipment.
At the same time, since micro liquid transfer device of the invention has the liquid disengaging portion 32 of plate and liquid passes in and out
Portion 32 be formed with vertical section be bar shaped liquid pass in and out gap 32a, ensure that liquid disengaging portion 32 realize stablize feed liquor and
Out while liquid, the liquid disengaging portion 32 of plate is inserted into realize the liquid transfer in slit in certain gaps,
That is the liquid disengaging portion 32 of plate can expand the scope of application of micro liquid transfer device to a certain extent, thus more
The good use demand for meeting user.
Micro liquid transfer device of the invention is realized due to the power source shifted using piezoelectric ceramic pump 1 as liquid
More accurately liquid shifts, and eliminates the structure that the measuring devices such as flowmeter simplify micro liquid transfer device.
Further, since liquid disengaging portion 32 is formed as plate, and liquid disengaging portion 32 is formed with the liquid that vertical section is bar shaped and passes in and out
Gap 32a, so that the liquid disengaging portion 32 of plate is inserted into slit to realize the transfer of the liquid in slit to expand
The scope of application of micro liquid transfer device, to better meet the use demand of user.
In some embodiments, the height of liquid disengaging gap 32a is 0.06mm-0.1mm.Be understood that when, liquid
Disengaging gap 32a is too small to be easy to appear the phenomenon that liquid disengaging portion 32 blocks, and liquid disengaging gap 32a crosses conference and reduces liquid
The precision of transfer.When the height of liquid disengaging gap 32a is between 0.06mm-0.1mm, the resistance of liquid disengaging portion 32 can be reduced
The possibility of plug, and it is avoided that liquid is relatively easy to trickle disengaging portion 32 showing so as to cause the precision for reducing liquid transfer
As.Certainly, in other embodiments of the invention, the height of liquid disengaging gap 32a can make a choice according to actual needs,
It is not limited to above range.
In some preferred embodiments, the height in liquid disengaging portion 32 is 0.1mm-0.4mm.It is understood that liquid
Body disengaging portion 32 is too small not to be allowed easy to produce in practice, and conference is crossed in liquid disengaging portion 32 reduces the scope of application and liquid of the device
The precision of body transfer.When the height in liquid disengaging portion 32 is between 0.1mm-0.4mm, can be reduced in production difficulty and
It is able to achieve wide applicability and high-precision liquid transfer.Certainly, in other embodiments of the invention, liquid disengaging portion 32
Height can make a choice according to actual needs, however it is not limited to above range.
In some embodiments, the inner sidewall of liquid disengaging gap 32a and lateral wall are equipped with hydrophobic layer.Firstly the need of saying
Bright, existing liquid transcription device generallys use silicone tube and realizes liquid transfer, but silicone tube etc. has centainly hydrophilic
Property, outlet liquid, which is readily adsorbed in nozzle, to be detached from, and when the liquid volume of output is smaller, the error of generation will compare
Greatly.And in micro liquid transfer device of the invention, the inner wall that liquid passes in and out gap 32a is equipped with hydrophobic layer, preferable in this way
Ground avoids liquid adsorption the phenomenon that the liquid disengaging edge gap 32a can not be detached from, to further ensure liquid transfer
Accuracy.The outer wall that liquid passes in and out gap is equipped with hydrophobic layer, preferably avoids liquid adsorption in this way in liquid and passes in and out gap
When liquid disengaging portion 32 being caused to absorb liquid on 32a, liquid adsorption cannot be introduced into liquid disengaging at the liquid disengaging edge gap 32a
The phenomenon that portion.
What needs to be explained here is that hydrophobic layer can be made of any hydrophobic material, herein not to the material of hydrophobic layer
Restriction is made, the material of hydrophobic layer can make a choice according to the actual situation.In addition, in other embodiments of the invention, liquid
Body disengaging portion 32 can be directly used hydrophobic material and be made.
In some embodiments, as shown in Figure 1, the one end of interconnecting piece 31 being connected with liquid entrance 111 is located at connection
The top of the one end being connected with liquid disengaging portion 32 in portion 31.Exist between liquid disengaging portion 32 and liquid entrance 111 as a result,
There is difference in height, this avoid, when being inserted into slit, the end face of piezoelectric ceramic pump 1 and slit generates in liquid disengaging portion 32
The phenomenon that interference causes liquid disengaging portion 32 that cannot smoothly be inserted into slit.Supplementary explanation is needed exist for, here not to liquid
Difference in height between disengaging portion 32 and liquid entrance 111 makes specific restriction, liquid disengaging portion 32 and liquid entrance 111 it
Between difference in height can make a choice according to actual needs.
In some specific embodiments, as shown in Figure 1, interconnecting piece 31 is L-type pipeline.Liquid is preferably realized as a result,
There are differences in height between body disengaging portion 32 and liquid entrance 111.Certainly, in other embodiments of the invention, interconnecting piece
31 shape can make a choice according to actual needs, however it is not limited to the L-type of the present embodiment.
In some more specific embodiments, as shown in Figure 1-Figure 3, the second connector 3 further includes transfer block 33, transfer block
33 are connected between interconnecting piece 31 and liquid disengaging portion 32, transfer block 33 be equipped with Switching-through channel 331, the one of Switching-through channel 331
End is connected to interface channel 311, and the other end of Switching-through channel 331 is connected with liquid disengaging gap 32a.It is understood that even
Socket part 31 is usually formed as pipeline, and liquid disengaging portion 32 is then a thin plate, and interconnecting piece 31 is directly connected to liquid disengaging
Portion 32 reduces connective stability between the two, and thickness lesser liquid disengaging portion 32 is easy to appear during the connection process
Damage, to improve the production defect rate of the second connector 3.In the present invention, interconnecting piece 31 passes through transfer block 33 and liquid
Disengaging portion 32 is connected, and the thickness of link block can be relatively thick, both ensure that interconnecting piece 31 and the connection of transfer block 33 were steady in this way
It is qualitative, in turn ensure the connective stability in liquid disengaging portion 32 Yu transfer block 33 so that the rigidity of the second connector 3 compared with
Greatly, moreover it is possible to reduce the production defect rate of the second connector 3.
In some embodiments, as shown in figure 3, width of the liquid disengaging portion 32 close to one end of interconnecting piece 31 is greater than liquid
The one end of disengaging portion 32 far from interconnecting piece 31.Be understood that when, one end of the close interconnecting piece 31 in liquid disengaging portion 32 is wider,
The narrower width of the tapping side in liquid disengaging portion 32 can be stablized guaranteeing liquid into the same of liquid disengaging gap 32a
When, so that liquid is easier to go out to be detached from from the tapping side of liquid disengaging gap 32a.
In some specific embodiments, as shown in figure 3, liquid disengaging portion 32 includes flat plate section 321 and converging transition 322,
One end of flat plate section 321 is connected with interconnecting piece 31, and the other end of flat plate section 321 is connected with converging transition 322, and converging transition 322 erects
Straightforward area is gradually reduced on the direction far from flat plate section 321.The presence of flat plate section 321 as a result, can guarantee liquid energy
Enough stablize enters liquid disengaging gap 32a, and the presence of converging transition 322 enables to liquid to be easier to pass in and out gap from liquid
The tapping side of 32a goes out to be detached from, to ensure that the precision of micro liquid transfer device.Supplementary explanation is needed exist for, this
In specific restriction do not made to the shape and size of the horizontal cross-section of flat plate section 321 and converging transition 322, flat plate section 321 and tapered
The shape and size of the horizontal cross-section of section 322 can select according to actual needs.
In some embodiments, as Figure 1-Figure 2, two opposite side walls of piezoelectric ceramic pump 1 be equipped with liquid into
Outlet pipe 11, the first connector 2 are set on one of liquid inlet/outlet pipe 11, and the second connector 3 passes through connecting tube 4 and another
Liquid inlet/outlet pipe 11 is connected.Thereby it is ensured that piezoelectric ceramic pump 1 and the first connector 2 and the sealing of 3 junction of the second connector
Property, thus the phenomenon that preferably avoiding liquid leakage generation.
Embodiment:
The micro liquid transfer device of one specific embodiment is described below with reference to Fig. 1-Fig. 3.
The micro liquid transfer device of the present embodiment includes piezoelectric ceramic pump 1, the first connector 2 and the second connector 3, pressure
Be respectively equipped with liquid entrance 111 in the opposite two side walls of electroceramics pump 1, piezoelectric ceramic pump 1 can by adjusting its voltage with
Frequency adjusts the fluid flow of liquid entrance 111, and two opposite side walls of piezoelectric ceramic pump 1 are equipped with liquid inlet/outlet pipe
11, the first connector 2 is set on one of liquid inlet/outlet pipe 11, and the second connector 3 passes through connecting tube 4 and another liquid
Inlet/outlet pipe 11 is connected.Second connector 3 includes interconnecting piece 31, liquid disengaging portion 32 and transfer block 33, and interconnecting piece 31 is L-type pipe
Road, and one end of interconnecting piece 31 is connected with liquid entrance 111, interconnecting piece 31 has the connection being connected to liquid entrance 111
Channel 311, liquid disengaging portion 32 are formed as plate, and are formed with the liquid that vertical section is bar shaped in liquid disengaging portion 32 and pass in and out
Gap 32a.Liquid disengaging portion 32 includes flat plate section 321 and converging transition 322, and one end of flat plate section 321 is connected with transfer block 33, is put down
The other end of plate section 321 is connected with converging transition 322, the vertical section of converging transition 322 product on the direction far from flat plate section 321 by
It is decrescence small.Transfer block 33 is connected between interconnecting piece 31 and liquid disengaging portion 32, and transfer block 33 is equipped with Switching-through channel 331, is turned
The one end for connecting road 331 is connected to interface channel 311, and the other end of Switching-through channel 331 is connected with liquid disengaging gap 32a.?
The first connector 2 is liquid feeding side in the present embodiment, and the second connector 3 is tapping side.Certainly, in other embodiments, first connects
Connector 2 or tapping side, and the second connector 3 is liquid feeding side.
As shown in figure 4, micro liquid transfer system of the invention, including micro liquid transfer device above, micro liquid
Transfer device be it is multiple, multiple micro liquid transfer devices are arranged in the horizontal direction, and each micro liquid device can be controlled individually
System.Micro liquid of the invention shifts dress system, due to reducing micro liquid with previously described micro liquid transfer device
Body transfer dress system obtains volume, makes it easy to be integrated in other equipment.
As shown in figure 4, the transfer block 33 of two adjacent micro liquid transfer devices is connected, to realize multiple micro liquids
Transfer device is sequentially connected, this ensure that the tapping side face in the liquid discharge liquid portion of multiple micro liquid transfer devices is located at one
In a plane, the progress of liquid transfer is facilitated.
In the description of this specification, reference term " some embodiments ", " other embodiments ", etc. description mean to combine
The embodiment or example particular features, structures, materials, or characteristics described be contained at least one embodiment of the present invention or
In example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.And
And particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples with suitable
Mode combine.
The above is only a preferred embodiment of the present invention, for those of ordinary skill in the art, according to the present invention
Thought, there will be changes in the specific implementation manner and application range, and the content of the present specification should not be construed as to the present invention
Limitation.
Claims (10)
1. a kind of micro liquid transfer device characterized by comprising
Piezoelectric ceramic pump (1) is respectively equipped with liquid entrance (111), institute in the opposite two side walls of the piezoelectric ceramic pump (1)
The fluid flow of the liquid entrance (111) can be adjusted by adjusting its voltage and frequency by stating piezoelectric ceramic pump (1)；
First connector (2), first connector (2) are connected with liquid entrance described in one of them (111)；
Second connector (3), second connector (3) are connected with liquid entrance described in another (111), and described second connects
Connector (3) includes:
One end of interconnecting piece (31), the interconnecting piece (31) is connected with the liquid entrance (111), interconnecting piece (31) tool
There is the interface channel (311) being connected to the liquid entrance (111)；
Liquid disengaging portion (32), liquid disengaging portion (32) are connected with the interconnecting piece (31), liquid disengaging portion (32)
Be formed as plate, and be formed with the liquid that vertical section is bar shaped in liquid disengaging portion (32) and pass in and out gap (32a), it is described
Liquid disengaging gap (32a) is connected with the interface channel (311).
2. micro liquid transfer device according to claim 1, which is characterized in that liquid disengaging gap (32a)
Height is 0.06mm-0.1mm.
3. micro liquid transfer device according to claim 1, which is characterized in that liquid disengaging gap (32a)
Inner sidewall and lateral wall are equipped with hydrophobic layer.
4. micro liquid transfer device according to claim 1, which is characterized in that the interconnecting piece (31) with the liquid
The connected one end of body inlet and outlet (111) is located at the upper of the one end of the interconnecting piece (31) being connected with liquid disengaging portion (32)
Side.
5. micro liquid transfer device according to claim 4, which is characterized in that the interconnecting piece (31) is L-type pipeline.
6. micro liquid transfer device according to claim 5, which is characterized in that second connector (3) further include:
Transfer block (33), the transfer block (33) are connected between the interconnecting piece (31) and liquid disengaging portion (32), institute
Transfer block (33) are stated equipped with Switching-through channel (331), one end and the interface channel (311) of the Switching-through channel (331) are even
Logical, the other end of the Switching-through channel (331) is connected with liquid disengaging gap (32a).
7. micro liquid transfer device according to claim 1, which is characterized in that liquid disengaging portion (32) is close to institute
The width for stating one end of interconnecting piece (31) is greater than the one end of liquid disengaging portion (32) far from the interconnecting piece (31).
8. micro liquid transfer device according to claim 7, which is characterized in that liquid disengaging portion (32) includes flat
One end of plate section (321) and converging transition (322), the flat plate section (321) is connected with the interconnecting piece (31), the flat plate section
(321) the other end is connected with the converging transition (322), and the vertical section product of the converging transition (322) is far from the plate
It is gradually reduced on the direction of section (321).
9. micro liquid transfer device according to claim 1, which is characterized in that two of the piezoelectric ceramic pump (1)
Opposite side wall is equipped with liquid inlet/outlet pipe (11), and first connector (2) is set in one of them described liquid inlet/outlet pipe
(11) on, second connector (3) is connected by connecting tube (4) with liquid inlet/outlet pipe (11) described in another.
10. a kind of micro liquid transfer system, which is characterized in that including the micro liquid as described in any one of claim 1-9
Transfer device, the micro liquid transfer device be it is multiple, multiple micro liquid transfer devices are arranged in the horizontal direction, and
Each micro liquid transfer device can be controlled separately.
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| CN201910584868.3A CN110207016B (en) | 2019-07-01 | 2019-07-01 | Trace liquid transfer device and trace liquid transfer system |
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| CN110207016B (en) | 2023-12-12 |
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