CN208546605U - Fluid system - Google Patents

Abstract

A kind of integrated fluid system produced is made of comprising a fluid actuation area, a fluid channel, a confluence chamber and multiple valves, the fluid actuation area an at least flow guiding unit, which is activated transmission fluid flowing by control and be discharged by its outlet opening.The fluid channel is connected to the outlet opening of the flow guiding unit in fluid actuation area, and has multiple disagreement channels, the fluid transmitted with shunting fluid actuation area.Converge chamber fluid channel.Multiple valves are respectively arranged in multiple disagreement channel, by its switch state is controlled, to control fluid by exporting in the disagreement channel.Through arrangement above, the fluid output of specific flow velocity, pressure and transmission quantity can be obtained.

Description

Fluid system

[technical field]

This case is about a kind of fluid system, espespecially a kind of integrated micro fluid control system produced.

[background technique]

The either industry such as medicine, computer technology, printing, energy in each field at present, product is towards sophistication and micro- Smallization direction is developed, wherein the fluid delivery structure that the products such as micro- side Pu, sprayer, ink gun, industrial printing devices are included For its key technology, therefore how innovation structure to be borrowed to break through its technical bottleneck, for the important content of development.

With making rapid progress for science and technology, fluid delivery system using upper also more and more diversification, industrial application, life such as Cure application, health care, electronic radiation etc., or even the recently popular all visible Ta COPA shadow of wearable device, it is seen that tradition Fluid delivery system had the tendency that gradually towards device microminiaturization, flow maximize.

Though however, the fluid delivery system that is miniaturized at present can continuous transmission gas, in the finite volume of micromation Design requirement promotes more gas transport amounts on chamber or runner, it is clear that has certain difficulty degree, therefore combines setting for valve Meter not only can control continuing or interrupting for air stream transportation, also can control the flowing of gas unidirectional, and allow the chamber of finite volume Or runner removes accumulation gas, with the output of lift gas amount, this is the major subjects of the be intended to utility model of this case.

[utility model content]

In order to solve the problems, such as that known technology is unable to satisfy fluid system demand miniaturization, this case provides a kind of integrated The fluid system produced, comprising a fluid actuation area, a fluid channel, a confluence chamber and multiple valves, these valves can based on Dynamic valve or passive valve.The fluid actuation area is made of one or more flow guiding units, and each flow guiding unit has an outlet opening.The stream Body channel is connected to the outlet opening of all flow guiding units in fluid actuation area, and has multiple disagreement channels, with shunting fluid actuation The fluid that area is transmitted.Converge chamber fluid channel, to allow fluid cumulative in the confluence chamber.Multiple valves are respectively set In these disagreement channels, by its switch state is controlled, to control fluid by exporting in the disagreement channel.

In an embodiment of this case, these valves are aggressive valve, and fluid system further includes a controller, is electrically connected these Valve is to control its switch state.It is integrated that controller and these flow guiding units with system encapsulation are constituted one.Fluid actuation area includes Multiple flow guiding units, and these flow guiding units are flowed so that transmission fluid is arranged in series and parallel.The length in these disagreement channels with Width, all particular fluid transmission quantity or flow velocity are preset on demand, and these disagreement channels to be arranged in series and parallel.

Through arrangement above, the fluid system of this case can have micromation volume, and obtain specific flow velocity, pressure and transmission The fluid of amount exports.

[Detailed description of the invention]

Fig. 1 is the structural schematic diagram of the fluid system of a preferred embodiment of this case.

Fig. 2A is the structural schematic diagram of the flow guiding unit of a preferred embodiment of this case.

Fig. 2 B to Fig. 2 D is the illustrative view of flow guiding unit shown in Fig. 2A.

Fig. 3 A is the structural schematic diagram in the fluid actuation area of a preferred embodiment of this case.

Fig. 3 B is the structural schematic diagram that the flow guiding unit of this case is arranged in a series arrangement.

Fig. 3 C is the structural schematic diagram that the flow guiding unit of this case is arranged with parallel way.

Fig. 3 D is the structural schematic diagram that the flow guiding unit of this case is arranged with series-parallel system.

Fig. 4 is the structural schematic diagram in the fluid actuation area of the another preferred embodiment of this case.

Fig. 5 is the structural schematic diagram in the fluid actuation area of another preferred embodiment of this case.

Fig. 6 A and Fig. 6 B are the illustrative view of the first state sample implementation of the valve of this case.

Fig. 7 A and Fig. 7 B are the illustrative view of the second state sample implementation of the valve of this case.

[specific embodiment]

The some exemplary embodiments for embodying this case features and advantages will describe in detail in the explanation of back segment.It should be understood that This case can have various variations in different aspects, all not depart from the range of this case, and explanation therein and diagram It is inherently illustrated as being used, and nand architecture is in limitation this case.

The 1st figure is please referred to, is the structural schematic diagram of the fluid control systems of a preferred embodiment of this case.The stream of this case System system 100 includes a fluid actuation area 10, a fluid channel 20, one confluence chamber 30, multiple valve 50a, 50b, 50c and 50d, An and controller 60.In the preferred embodiment of this case, above-mentioned all elements all systems are packaged in a substrate 11 to constitute one Integrated microstructure.Wherein, fluid actuation area 10 is made of one or more flow guiding units 10a, these flow guiding units 10a It can pass through series, parallel or the setting of series-parallel arrangement mode, each flow guiding unit can generate a pressure in therein after enable Power is poor, so as to sucking one can for gas fluid and an outlet opening (the being not depicted in Fig. 1) pressurization that has via it be discharged, borrow This reaches the transmission of fluid.

In the present embodiment, fluid actuation area 10 includes four flow guiding unit 10a, and the flow guiding unit 10a is to go here and there Be arranged in parallel setting.The outlet opening that fluid channel 20 is connected to all flow guiding unit 10a in fluid actuation area 10 (is not depicted in figure 1), to receive the transmission fluid that these flow guiding units 10a is discharged.The structure of flow guiding unit 10a and fluid channel 20, actuation side Formula and set-up mode will be described in detail in back segment.Fluid channel 20 has more multiple disagreement channel 20a and 20b, to shunt fluid work The transmission fluid that dynamic area 10 is discharged, is constituted required transmission quantity, is only explained in embodiment with disagreement channel 20a and 20b, and It is non-as limit.Confluence chamber 30 is connected to fluid channel 20 through connection disagreement channel 20a and 20b, so that transmission fluid It is able to accumulate in confluence chamber 30 and store, in the output of 100 demand for control of fluid system, for being defeated by the defeated of fluid channel 20 Out, larger fluid transmission quantity.

Above-mentioned disagreement channel 20a and 20b is connected to the mode of fluid channel 20, though only with disagreement channel 20a in schema And 20b is connected to fluid channel 20 and adopts the mode of being arranged in parallel and is arranged to indicate, but not limited to this, can be further with multiple disagreements Channel 20a and 20b are adopted to be arranged in a manner of arranged in series, or is adopted with multiple disagreement channel 20a and 20b with series-parallel arrangement mode Setting.Wherein, the length and width of multiple disagreement channel 20a and 20b can all be preset according to required specific transmission amount, It also is that the length of disagreement channel 20a and 20b and the variation of width setting can influence the flow velocity of transmission quantity and the size of transmission quantity, Specific transmission amount it can precompute the length and width of set demand on demand.

In the present embodiment, as shown, disagreement channel 20a further includes two disagreement channel 21a, 22a for connection of disagreeing； Similarly, disagreement channel 20b also includes two disagreement channel 21b, the 22b of connection of disagreeing, though only with disagreement channel in schema 21a, 22a are respectively communicated with to adopt arranged in series mode in disagreement channel 20a and 20b and be arranged and indicate, but not limited to this, can be into One step is adopted by multiple disagreement channel 21a, 22a to be arranged in a manner of being arranged in parallel, or with multiple disagreement channel 21a, 22a adopt with Series-parallel arrangement mode setting.Multiple valve 50a, 50c, 50b and 50d can be aggressive valve or passive valve, in the present embodiment based on Dynamic valve, and be sequentially arranged in disagreement channel 21a, 22a, 21b, 22b respectively.Valve 50a, 50c, 50b and 50d are controllable set Disagreement channel 21a, 22a, 21b, 22b connected state.For example, disagreement channel 21a output stream can be opened when valve 50a is opened Body is to output area A；When valve 50b unlatching, disagreement channel 21b can be opened and export fluid to output area A；When valve 50c unlatching, can open Disagreement channel 22a exports fluid to output area A；When valve 50d unlatching, disagreement channel 22b can be opened and export fluid to output area A. Controller 60 has two to be electrically connected route 610,620, is electrically connected the switch that route 610 is electrically connected control valve 50a, 50d State, and it is electrically connected the switch state that route 620 is electrically connected control valve 50b, 50c.In this way, valve 50a, 50b, 50c And 50d can be driven by controller 60, and then control a connected state of corresponding disagreement channel 21a, 22a, 21b, 22b being arranged State, and then control fluid and export to an output area A.

It is the structural schematic diagram of the flow guiding unit of a preferred embodiment of this case please refer to Fig. 2A.In this case In one preferred embodiment, flow guiding unit 10a can be a piezoelectric pump.As shown, each flow guiding unit 10a is by access panel 17, base The elements such as material 11, sounding board 13, actuation plate 14, piezoelectric element 15 and exit plate 16, which sequentially stack, to be constituted.Wherein, access panel 17 have an at least ingate 170, and sounding board 13 has hollow bore 130 and movable part 131, and movable part 131 is sounding board 13 The part not being fixedly arranged on substrate 11 is formed by a flexible structure, and hollow bore 130 is opened in neighbouring movable part 131 The position of heart point.First chamber 12 is formed between sounding board 13 and the access panel 17.Actuation plate 14 is a hollow suspension structure, With suspension portion 141, outer frame 142 and multiple gaps 143.The suspension portion 141 of actuation plate 14 is through multiple interconnecting pieces (figure Do not show) connection outer frame 142, it is suspended in suspension portion 141 in outer frame 142, and between suspension portion 141 and outer frame 142 Multiple gaps 143 are defined, are circulated to supplied gas.Suspension portion 141, the set-up mode of outer frame 142 and gap 143, implementation Aspect and quantity are not limited, and can be changed according to practical situation.Preferably, actuation plate 14 is with a metallic material film or more Made by polycrystal silicon film, but not limited to this.There is a gap g0 between actuation plate 14 and sounding board 13, form one second chamber Room 18.Outlet opening 160 is set to exit plate 16, and third chamber 19 is formed between actuation plate 14 and exit plate 16.

In some preferred embodiments of this case, the substrate 11 of flow guiding unit 10a further includes one drive circuit (not shown), It is for electrically connecting to the anode and cathode of piezoelectric element 15, provides 15 driving power of piezoelectric element whereby, but not limited to this；It drives Dynamic circuit also may be disposed at any position inside flow guiding unit 10a, can appoint Shi Bianhua according to practical situation.

It is the illustrative view of flow guiding unit 10a shown in Fig. 2A please refer to Fig. 2A to Fig. 2 C, Fig. 2 B to Fig. 2 D. Flow guiding unit 10a shown in Fig. 2A is in non-enabled status (i.e. original state).When piezoelectric element 15 is applied a voltage, that is, produce Raw deformation, driving actuation plate 14 carry out reciprocating vibration along a vertical direction.As shown in Figure 2 B, when the suspension portion of actuation plate 14 141 vibrations upwards can be such that 18 volume of second chamber increases, pressure reduction, then fluid is complied with by the ingate 170 on access panel 17 External pressure enters, and is pooled at first chamber 12, then via the center being correspondingly arranged on sounding board 13 with first chamber 12 Hole 130 is flowed upwardly into second chamber 18.

Then, as shown in Figure 2 C, the vibration in the suspension portion 141 of actuation plate 14 will drive sounding board 13 and generate resonance, make it Movable part 131 also with upward vibration, and the suspension portion 141 of actuation plate 14 vibration downwards simultaneously, will cause sounding board 13 can Dynamic portion 131 attaches 141 lower section of suspension portion for contacting at actuation plate 14.At this point, the central hole 130 and second chamber of sounding board 13 Circulation gap between 18 is closed, and second chamber 18 is compressed and volume becomes smaller, pressure increases, and third chamber 19 is then body Product increases, pressure becomes smaller, and then forms barometric gradient, and the fluid in second chamber 18 is made to be pressurized and flow to two sides, and via Multiple gaps 143 of actuation plate 14 flow into third chamber 19.Again as shown in Figure 2 D, the suspension portion 141 of actuation plate 14 continue to Lower vibration, and drive the movable part 131 of sounding board 13 with downward vibration, compress second chamber 18 further, and make wherein Most of fluid flow in third chamber 19 and keeps in.

Finally, actuation plate 14 suspension portion 141 upwards vibrate, make third chamber 19 compress and volume becomes smaller, pressure becomes larger, And then it is external to exit plate 16 to export the fluid in third chamber 19 from the outlet opening 160 of exit plate 16, completes fluid Transmission.When above-mentioned actuation is that actuation plate 14 carries out reciprocating vibration, the actuation process once completely vibrated is completed.In piezoelectricity member In the state of 15 enable of part, above-mentioned actuation is repeated in the suspension portion 141 of actuation plate 14 and the movable part 131 of sounding board 13, Continue to pressurize fluid by 170 exit hole 160 of inlet port and be discharged, in order to the transmission for realizing fluid.In some implementations of this case In example, the vertical reciprocating type vibration frequency of sounding board 13 can be identical as the vibration frequency of actuation plate 14, i.e., the two can simultaneously upwards Or simultaneously downwards, Shi Bianhua can be appointed according to situation is actually applied, not to be limited shown in the present embodiment as flowing mode.

Barometric gradient is generated in runner design via the flow guiding unit 10a of the present embodiment, flows fluid high-speed, and thoroughly The resistance difference for crossing runner disengaging direction, is transmitted to outlet side by suction side for fluid, and in the state that outlet side has pressure, It still has the ability persistently to release fluid, and can reach mute effect.

Fig. 3 A is please referred to, is the structural schematic diagram in the fluid actuation area of a preferred embodiment of this case.The fluid actuation Area 10 include multiple flow guiding unit 10a, these flow guiding units 10a can be adjusted according to particular arrangement mode the fluid actuation area 10 its The fluid transmission quantity of output, in the present embodiment, these flow guiding units 10a is arranged with series-parallel system in substrate 11.

Please refer to Fig. 3 B to Fig. 3 C.Fig. 3 B is the structural schematic diagram that the flow guiding unit of this case is arranged in a series arrangement；Fig. 3 C The structural schematic diagram being arranged for the flow guiding unit of this case with parallel way；Fig. 3 D is that the flow guiding unit of this case is set with series-parallel system The structural schematic diagram set.As shown in Figure 3B, these flow guiding units 10a in the fluid actuation area 10 is arranged according to series system, is borrowed These flow guiding units 10a is connected by series system, to promote its fluid pressure value of the outlet opening 160 in the fluid actuation area 10；Please Refering to shown in Fig. 3 C, these flow guiding units 10a in the fluid actuation area 10 is arranged using parallel way, is connected by parallel way These flow guiding units 10a is met, the output Fluid Volume of the outlet opening 160 in the fluid actuation area 10 is further increased；Please refer to Fig. 3 D Shown, these flow guiding units 10a in the fluid actuation area 10 is arranged according to series-parallel mode, and being subject to Synchronous lifting should Fluid actuation area 10 its pressure value and output quantity for exporting fluid.

Please refer to Fig. 4 and Fig. 5.Fig. 4 is the structural schematic diagram in the fluid actuation area of the another preferred embodiment of this case；Fig. 5 For the structural schematic diagram in the fluid actuation area of another preferred embodiment of this case.As shown in figure 4, this in the fluid actuation area 10 A little flow guiding unit 10a are arranged to transmit fluid with ring style；It please refers to shown in Fig. 5, this in the fluid actuation area 10 A little unit 10a that flow backwards are arranged using honeycomb mode.

In this present embodiment, the flow guiding unit 10a of fluid system 100 can cooperate the connection of driving circuit, flexibility ratio pole Height, more be applied to various electronic component in, and can simultaneously enable transmit gas, can be in response to the gas transport demand of big flow； In addition, flow guiding unit 10a, another flow guiding unit 10a also can be controlled separately actuation or stopping, such as: flow guiding unit 10a actuation, Another flow guiding unit 10a stops, and can also alternately operate, but be not limited, can be easily achievable various gases whereby and pass The demand of defeated flow, and can reach the effect of power consumption is greatly reduced

Fig. 6 A and Fig. 6 B is please referred to, is the illustrative view of the first state sample implementation of the valve of this case.Valve 50 includes logical Road substrate 51, piezoelectric actuator 52 and connecting rod 53 are set in the 21a of disagreement channel with regard to the present embodiment valve 50 illustrate below, Structure and the actuation that valve 50 is arranged in opposite other disagreement channels 22a, 21b, 22b are all identical, and just it will not go into details below.Channel Substrate 51 has a first through hole 511 and one second through-hole 512, is respectively communicated in the 21a of disagreement channel, and with channel substrate 51 are provided spaced, and the top of channel substrate 51 is recessed sets a chamber 513, and chamber 513 is provided with the of connection first through hole 511 One outlet 514, and it is provided with the second outlet 515 of the second through-hole 512 of connection.Piezoelectric actuator 52 include support plate 521 and Piezoelectric ceramics 522, support plate 521 is with made by flexible materials, and piezoelectric ceramics 522 is then attached on a surface of support plate 521, And it is electrically connected controller 60.Piezoelectric actuator 52 covers chamber 513 and is arranged on support plate 521.And connecting rod 53 connects support plate 521 another surface, and along a vertical direction free displacement in the second outlet 515 that stretches through, and one end of connecting rod 53 has and cuts Area is greater than a block resistance portion 531 in the aperture of second outlet 515, to close the connection of limitation second outlet 515.Wherein, block resistance Portion 531 can be tabular or gill fungus shape.

As shown in Figure 6A, for valve 50 in the state of the non-enable of piezoelectric actuator 52, connecting rod 53 is in a normally opened initial position. At this point, having a flowing space between block resistance portion 531 and second outlet 515, make the second through-hole 512, chamber 513 and first through hole 511 are able to mutually connect and be connected in the 21a of disagreement channel through the flowing space, and transmission fluid is enable to pass through.Opposite, As shown in Figure 6B, when 52 enable of piezoelectric actuator, piezoelectric ceramics 522 drive support plate 521 to be bent upwards deformation, connecting rod 53 is carried The gearing of plate 521 and move up, and then make the aperture of 531 block resistance second outlet 515 of block resistance portion.At this point, 531 envelope of block resistance portion Second outlet 515 is closed, and pass through transmission fluid can not.Make flowing mode by above-mentioned, valve 50 can maintain under non-enabled status Disagreement channel 21a open state, and disagreement channel 21a is then closed under enabled status；Also that is, valve 50 is by controlling the second through-hole 512 switch state can control fluid in turn and be exported by disagreement channel 21a.

Fig. 7 A and Fig. 7 B is please referred to, is the illustrative view of the second state sample implementation of the valve of this case.The structure of valve 50 Identical, just it will not go into details herein, only illustrate be in the state of the non-enable of valve 50 normally off movements design.

As shown in Figure 7 A, for valve 50 in the state of the non-enable of piezoelectric actuator 52, connecting rod 53 is in a normally closed initial position. It at this point, block resistance portion 531 closes the aperture of second outlet 515, pass through transmission fluid can not.As shown in Figure 7 B, when piezoelectric actuated 52 enable of device, piezoelectric ceramics 522 drive support plate 521 to be bent downwardly deformation, connecting rod 53 by support plate 521 gearing and to moving down When dynamic, there is a flowing space between block resistance portion 531 and second outlet 515, make the second through-hole 512, chamber 513 and first through hole 511 are able to mutually connect and be connected in the 21a of disagreement channel through the flowing space, and transmission fluid is enable to pass through.By upper It states and makees flowing mode, valve 50 can maintain the closed state of disagreement channel 21a under non-enabled status, and then open under enabled status Disagreement channel 21a；Also that is, valve 50 can control fluid by disagreement channel by a switch state of the second through-hole 512 of control in turn The output of 21a.

In conclusion fluid system provided by this case, through an at least flow guiding unit by gas transport to the chamber that converges It is interior, and using the valve in disagreement channel further control and adjust the flow, flow velocity and pressure for the fluid that fluid system is exported Power.It, can be in response to furthermore this case also penetrates the flexible variation of flow guiding unit, the quantity in disagreement channel, set-up mode and driving method The demand of various different devices and gas transport flow can reach high-transmission amount, high-effect, high flexibility and other effects.

This case appointed as person familiar with the technology apply craftsman think and be it is all as modify, it is so neither de- such as attached claim Be intended to Protector.

[symbol description]

100: fluid system

10: fluid actuation area

10a: flow guiding unit

11: substrate

12: first chamber

13: sounding board

130: hollow bore

131: movable part

14: actuation plate

141: suspension portion

142: outer frame

143: gap

15: piezoelectric element

16: exit plate

160: outlet opening

17: access panel

170: ingate

18: second chamber

19: third chamber

20: fluid channel

20a, 20b, 21a, 21b, 22a, 22b: disagreement channel

30: confluence chamber

50,50a, 50b, 50c, 50d: valve

51: channel substrate

511: first through hole

512: first through hole

513: chamber

514: first outlet

515: second outlet

52: piezoelectric actuator

521: support plate

522: piezoelectric ceramics

53: connecting rod

531: block resistance portion

60: controller

610,620: being electrically connected route

G0: gap

A: output area.

Claims (16)

1. a kind of fluid system, integrated to produce, it is characterised in that include:

One fluid actuation area, is made of at least one flow guiding unit, and the flow guiding unit is by control actuating to transmit fluid by extremely Few outlet opening discharge；

One fluid channel is connected to an at least outlet opening in the fluid actuation area, and has multiple disagreement channels, makees the fluid Dynamic the transmitted fluid in area is able to shunt composition demand transmission quantity；

One confluence chamber, is connected in the fluid channel, for fluid cumulative in the confluence chamber；

Multiple valves are set in multiple disagreement channel, defeated to control fluid in the disagreement channel by its switch state of control Out.

2. fluid system as described in claim 1, which is characterized in that the fluid actuation area is by multiple flow guiding units with the row of series connection Column setting is to transmit fluid flowing.

3. fluid system as described in claim 1, which is characterized in that the fluid actuation area is by multiple flow guiding units with simultaneously townhouse Column setting is to transmit fluid flowing.

4. fluid system as described in claim 1, which is characterized in that the fluid actuation area is by multiple flow guiding units with series-parallel It is arranged to transmit fluid flowing.

5. fluid system as described in claim 1, which is characterized in that the fluid actuation area is by multiple flow guiding units with ring-type side Formula is arranged to transmit fluid flowing.

6. fluid system as described in claim 1, which is characterized in that the fluid actuation area is by multiple flow guiding units with honeycomb Mode is arranged to transmit fluid flowing.

7. fluid system as described in claim 1, which is characterized in that the flow guiding unit is a piezoelectric pump.

8. fluid system as described in claim 1, which is characterized in that the length in multiple disagreement channel specific transmission on demand Amount is to preset.

9. fluid system as described in claim 1, which is characterized in that the width in multiple disagreement channel specific transmission on demand Amount is to preset.

10. fluid system as described in claim 1, which is characterized in that the valve is an aggressive valve.

11. fluid system as claimed in claim 10, which is characterized in that the aggressive valve controls it by a controller and switchs shape State.

12. fluid system as claimed in claim 11, which is characterized in that the controller and the flow guiding unit are with system encapsulation structure At an integrated structure.

13. fluid system as described in claim 1, which is characterized in that the valve is a passive valve.

14. fluid system as described in claim 1, which is characterized in that multiple disagreement channel is arranged with arranged in series.

15. fluid system as described in claim 1, which is characterized in that multiple disagreement channel is with the setting that is arranged in parallel.

16. fluid system as described in claim 1, which is characterized in that multiple disagreement channel to be arranged in series and parallel.