CN208966543U - Minisize fluid conveyor module - Google Patents

Abstract

A kind of minisize fluid conveyor module includes: microprocessor, output clock signal, latch-up signal and data-signal；Special application integrated circuit, microprocessor is electrically connected to receive clock signal, latch-up signal and data-signal, special application integrated circuit includes multiple control circuits, and each control circuit includes: shift register, is electrically connected microprocessor to receive the clock signal and the data-signal；Latch circuit is electrically connected microprocessor and shift register, to receive latch-up signal and data-signal；And circuit, it is electrically connected latch circuit, to receive the data-signal of latch circuit output；Reverser, electrical connection and circuit；Oscillating circuit exports oscillator signal；Multiple mems pumps are respectively corresponded with multiple control circuit and are electrically connected.

Description

Minisize fluid conveyor module

Technical field

This case be about a kind of minisize fluid conveyor module, it is espespecially a kind of using control circuit support microprocessor come accurate Control the module of multiple mems pumps.

Background technique

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 Pump had the tendency that gradually towards device microminiaturization, referring to Fig. 1, Fig. 1 be mems pump module configuration diagram, Though the mems pump module known can be by the volume microminiaturization of mems pump 3 ' to micron grade, the mems pump 3 ' of micron grade Multiple collocation of mems pumps 3 ' can be needed to use because of too small volumetric constraint fluid transmission quantity, and all be at present transmission One advanced microprocessors 1 ' makees unit control, but advanced microprocessors 1 ' itself are at high cost, and each mems pump 3 ' must Need the connection of two pins, increase the cost of advanced microprocessors 1 ', cause the cost of mems pump module high, it is difficult With universal, therefore, the cost at the driving end of mems pump module, the difficulty actually primarily overcome at present how are reduced.

Utility model content

The main purpose of this case is to provide a kind of minisize fluid conveyor module, assist to special application integrated circuit micro- Processor controls the mems pump of micron grade, effectively controls multiple mems pumps to reach.

In order to achieve the above object, the broader state sample implementation of this case is to provide a kind of minisize fluid conveyor module, include: one is micro- Processor, one clock signal of output, a latch-up signal and a data-signal；One special application integrated circuit is electrically connected micro- place It includes multiple controls that device, which is managed, to receive the clock signal, the latch-up signal and the data-signal, the special application integrated circuit Circuit processed, each control circuit includes: a shift register, is electrically connected the microprocessor to receive the clock signal and the number It is believed that number；One latch circuit is electrically connected the microprocessor and the shift register, to receive the latch-up signal and the shift LD The data-signal of device output；One and circuit, it is electrically connected the latch circuit, to receive the data letter of latch circuit output Number；One reverser, electrical connection is somebody's turn to do and circuit；One oscillating circuit, electrical connection should and circuit, with export an oscillator signal to should and electricity Road；Multiple mems pumps are respectively corresponded with multiple control circuit and are electrically connected.

Detailed description of the invention

Fig. 1 is the configuration diagram of known minisize fluid conveyor module.

Fig. 2A is the configuration diagram of this case minisize fluid conveyor module

Fig. 2 B is the electrical block diagram of this case minisize fluid conveyor module.

Fig. 3 A is first group of its shift register of control circuit and latch circuit schematic diagram of Fig. 2.

Fig. 3 B is the circuit framework schematic diagram of the shift transport lock of Fig. 3 A.

Fig. 3 C is the circuit framework schematic diagram of the latch transmission gate of Fig. 3 A.

Fig. 4 A is the circuit diagram of the oscillating circuit of Fig. 2.

Fig. 4 B is the waveform diagram of the oscillating circuit of Fig. 4 A.

Fig. 5 circuit diagram for Fig. 2's and circuit.

Fig. 6 is second group of its shift register of control circuit and latch circuit schematic diagram of Fig. 2.

Description of symbols

100: minisize fluid conveyor module

1,1 ': microprocessor

2: special application integrated circuit

20: control circuit

20A: the first group of control circuit

20B: the second group of control circuit

21: shift register

21a: clock signal input terminal

21b: the first data receiver

21c: the first data output end

21d: shift transport lock

21e: displacement reverser

211:P type MOS field school transistor

211a:P type gate input

211b: the first signal input part

211c: the first signal output end

212:N type MOS field school transistor

212a:N type gate input

212b: second signal input terminal

212c: second signal output end

213: transmission gate input terminal

214: transmission gate output end

22: latch circuit

22a: latch-up signal input terminal

22b: the second data receiver

22c: the second data output end

22d: latch transmission gate

22e: latch reverser

23: oscillating circuit

231: the first p-type MOS field school transistors

232: the second p-type MOS field school transistors

233: third p-type MOS field school transistor

234: the first N-type MOS field school transistors

235: the second N-type MOS field school transistors

236: third N-type MOS field school transistor

237: storage capacitors

238: the first concussion reversers

239: the second concussion reversers

24: and circuit

24a: third data receiver

24b: oscillator signal receiving end

24c: first control signal output end

24d: second control signal output end

241: NAND gate

242: and circuit reverser

24a: third data receiver

24b: oscillator signal receiving end

24c: first control signal output end

24d: second control signal output end

25: reverser

25a, 238a, 239a: input terminal

25b, 238b, 239b: output end

3,3 ': mems pump

31: first electrode

32: second electrode

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 illustrated as being used in itself, rather than to limit this case.

Please refer to Fig. 2A and Fig. 2 B, the minisize fluid conveyor module 100 of this case includes: a microprocessor 1, one is special to answer With integrated circuit 2 and multiple mems pumps 3, special application integrated circuit 2 has multiple control circuits 20, receives microprocessor 1 A clock signal, a latch-up signal and a data-signal for output, all respectively corresponding electrical connection is multiple for each control circuit 20 One of mems pump 3, and do not repeat, to control multiple mems pump 3 respectively；Wherein, each mems pump 3 is all With a first electrode 31 and a second electrode 32.

Above-mentioned multiple control circuit 20 is all respectively provided with a shift register 21, a latch circuit 22, one and circuit 24 and a reverser 25；Shift register 21 includes at least a clock pulse signal input part 21a, one first data receiver 21b and one first data output end 21c, clock signal input terminal 21a are electrically connected microprocessor 1, to receive 1 institute of microprocessor The clock signal of output, the first data receiver 21b is also electrically connected microprocessor 1, to receive data-signal；Latch circuit 22 has There is an at least latch-up signal input terminal 22a, one second data receiver 22b and one second data output end 22c, latch-up signal defeated Enter to hold 22a electrical connection microprocessor 1 to receive the latch-up signal of the output of microprocessor 1, the second data receiver 22b electrical connection First data output end 21c of shift register 21, to receive the data-signal that shift register 21 is exported；And circuit 24 wraps Contain a third data receiver 24a, first control signal output end 24c and a second control signal output end 24d, third number According to the second data output end 22c of receiving end 24a electrical connection latch circuit 22, to receive the data of the output of latch circuit 22 Signal, second control signal output end 24d are electrically connected the first electrode 31 of its corresponding mems pump 3；Reverser 25 has one The first control signal output end 24c of input terminal 25a and an output end 25b, input terminal 25a electrical connection and circuit 24, output end The second electrode 32 of 25b electrical connection mems pump 3.

The minisize fluid conveyor module 100 of this case, which has further included an oscillating circuit 23 and circuit 24, has an oscillator signal Receiving end 24b is electrically connected oscillating circuit 23, to receive an oscillator signal of the output of oscillating circuit 23.

Multiple control circuit 20 above-mentioned can divide into first group of control circuit 20A and second group of control circuit 20B, ask Refering to shown in Fig. 3 A, Fig. 3 A is the circuit structure diagram of shift register 21 and latch circuit 22, the shifting of first group of control circuit 20A Bit register 21 includes multiple shift transport lock 21d and multiple displacement reverser 21e, in this present embodiment, shift transport lock 21d and the quantity for shifting reverser 21e are all 4, and as shown in Figure 3B, Fig. 3 B is the detail structure chart of shift transport lock 21d, often One shift transport lock 21d separately includes a p-type metal-oxide half field effect transistor 211, a N-type metal-oxide half field effect transistor 212, one passes Defeated lock input terminal 213 and a transmission gate output end 214, two metal oxide semiconductcor field effect transistors (MOSFET), which are used as, opens It closes and uses, p-type metal-oxide half field effect transistor 211 has a P-type grid electrode input terminal 211a, one first signal input part 211b and one First signal output end 211c, N-type metal-oxide half field effect transistor 212 have a N-type gate input 212a, a second signal defeated Enter to hold a 212b and second signal output end 212c, the first signal input part 211b and N of p-type metal-oxide half field effect transistor 211 The second signal input terminal 212b electrical connection of type metal-oxide-semifield-effect electric crystal pipe 212 is used as transmission gate input terminal 213, the first signal Output end 211c and second signal output end 212c, which is electrically connected, is used as transmission gate output end 214, and p-type metal-oxide half field effect transistor 211 P-type grid electrode input terminal 211a and the N type gate input 212a of N-type metal-oxide half field effect transistor 212 are all electrically connected respectively The clock signal input terminal 21a for connecing shift register 21 is used to receive the clock signal that microprocessor 1 is issued；Please continue to refer to Fig. 3 A, 4 shift transport lock 21d in shift register 21 are to be connected in series, headed by shift transport lock 21d its transmission gate Input terminal 213 is electrically connected to the first data receiver 21b of shift register 21, and transmission gate output end 214, which is electrically connected to, to take second place Shift transport lock 21d transmission gate input terminal 213, the transmission gate output end 214 of the shift transport lock 21d to take second place is electrically connected to Third the transmission gate input terminal 213 of shift transport lock 21d, the transmission gate output end of shift transport lock 21d third The transmission gate input terminal 213 of the shift transport lock 21d of 214 electrical connection tail ends, the transmission gate output end of tail end shift transport lock 21d 214 electrical connection shift registers 21 data output end 21c, in addition, 4 displacement reverser 21e contact two-by-two after respectively with it is preceding The shift transport lock 21d parallel connection of take second place shift transport lock 21d and the tail end stated.

From the above, the P-type grid electrode input terminal 211a and N-type gate input 212a of same shift transport lock 21d when Arteries and veins signal is reverse signal, as shown in Figure 3A, headed by shift transport lock 21d P-type grid electrode input terminal 211a receive it is reversed When clock signal, N-type gate input 212a then receives clock signal, ranked third the P-type grid electrode of the shift transport lock 21d of position Input terminal 211a then receives the clock signal opposite with the first P-type grid electrode input terminal 211a, ranked third the shift transport lock of position The N-type gate input 212a of 21d receives reversed clock signal, and the P-type grid electrode for (second) shift transport lock 21d that takes second place is defeated Enter to hold 211a reception clock signal, N-type gate input 212a to receive reversed clock signal, the displacement of tail end (the 4th) passes The P-type grid electrode input terminal 211a of defeated lock 21d receives opposite with the P-type grid electrode input terminal 211a of deputy shift transport lock 21d Reversed clock signal, N-type gate input 212a receive clock signal, and so on.

Please continue to refer to Fig. 3 A, latch circuit 22 has two latch transmission gate 22d and two latch reverser 22e, please refers to Shown in Fig. 3 C, it is brilliant that two latch transmission gate 22d have separately included a p-type metal-oxide half field effect transistor 211, a N-type OH Body pipe 212, a transmission gate input terminal 213 and a transmission gate output end 214, two metal oxide semiconductcor field effect transistors (MOSFET) it is used as switch, the structure of latch transmission gate 22d is mutually isostructural transmission with above-mentioned shift transport lock 21d Lock, therefore will not be repeated here, wherein P-type grid electrode input terminal 211a, N of the p-type metal-oxide half field effect transistor of latch transmission gate 22d The N-type gate input 212a of type metal-oxide half field effect transistor is electrically connected the latch-up signal input terminal 22a of latch circuit 22, It is set to receive latch-up signal transmitted by microprocessor 1；Two latch transmission gate 22d are connected in series, and the latch positioned at front end transmits The transmission gate input terminal 213 of lock 22d is electrically connected the second data receiver 22b of latch circuit 22, to be further electrically connected displacement First data output end 21c of register 21, and the electrical connection of transmission gate output end 214 is located at the latch transmission gate 22d's of rear end Second data input pin 213, the of the second data output end 214 electrical connection latch circuit 22 of the latch transmission gate 22d of rear end Two data output end 22c, and the latch transmission gate 22d after 2 latch reverser 22e series windings with rear end is connected in parallel；In addition, P The received latch-up signal of type gate input 211a and N-type gate input 212a institute is reverse signal, and the latch of front end transmits The latch-up signal of the P-type grid electrode input terminal 211a of the latch transmission gate 22d of the P-type grid electrode input terminal 211a and rear end of lock 22d is also For reverse signal, as shown in Figure 3A, when its P-type grid electrode input terminal 211a of the latch transmission gate 22d of front end receives latch-up signal, Its N-type gate input 212a receives reversed latch-up signal, and the P-type grid electrode input terminal 211a of the latch transmission gate 22d of rear end connects Receive the P-type grid electrode input terminal 211a phase with front end latch transmission gate 22d otherwise reversed latch-up signal, N-type gate input 212a receives latch-up signal.

It please refers to shown in Fig. 4 A, oscillating circuit 23 includes one first p-type metal-oxide half field effect transistor 231, one the 2nd P Type metal-oxide half field effect transistor 232, a third p-type metal-oxide half field effect transistor 233, one first N-type metal-oxide half field effect transistor 234, one second N-type metal-oxide half field effect transistor 235, a third N-type metal-oxide half field effect transistor 236, a storage capacitors 237, One first concussion reverser 238 and one second concussion reverser 239, the base stage of the first p-type MOS field school transistor 231 are electrically connected Connect the base of source electrode, the base stage of the second p-type MOS field school transistor 232 and source electrode, third p-type MOS field school transistor 233 Pole and 3.3 volts of certain voltage, the grid of the first P type MOS field school transistor 231 are electrically connected its drain electrode and the second p-type The drain electrode of the grid of MOS field school transistor 232 and the first N-type MOS field school transistor 234, the first N-type MOS field school The base stage of transistor 234 is electrically connected its source electrode and is grounded, and grid is electrically connected to the second N-type MOS field school transistor 235 The source electrode of grid and an input voltage vin, the second N-type MOS field school transistor 235 can be electrically connected its base stage, the 3rd N type The drain electrode of the base stage of MOS field school transistor 236 and ground connection, third N-type MOS field school transistor 236 is electrically connected third p-type The input terminal of the drain electrode of MOS field school transistor 233, one end of storage capacitors 237 and the first concussion reverser 238 The output end 238b of 238a, the first concussion reverser 238 are electrically connected to the input terminal 239a of the second concussion reverser 239, finally The output end 239b of second concussion reverser 239 is connected to and the oscillator signal receiving end 24b of circuit 24 and feedback third p-type The grid of MOS field school transistor 233, third N-type MOS field school transistor 236.

It please refers to shown in Fig. 4 B, Fig. 4 B is the waveform diagram of Fig. 4 A oscillating circuit, and input voltage vin input voltage range is 1 ~3.3V, when input voltage vin is 3.3V, the first p-type MOS field school transistor 231, the second p-type MOS field school crystal Pipe 232, third p-type MOS field school transistor 233, the first N-type MOS field school transistor 234 and the second N-type MOS field School transistor 235 is all conducting, and third N-type metal-oxide half field effect transistor 236 is closed, and storage capacitors 237 will do it charging at this time, When storage capacitors 237 are filled it is full after, the input terminal 238a of one positive signal of output to the first concussion reverser 238, positive signal passes through the The input terminal 239a of a negative signal to the second concussion reverser 239 can be exported after one concussion reverser 238, negative signal passes through second After shaking reverser 239, oscillating circuit 23 will export positive signal, meanwhile, positive signal can date back third p-type MOS field school crystalline substance The grid of body pipe 233, third N-type MOS field school transistor 236, at this point, third p-type MOS field school transistor 233 can close It closes, storage capacitors 237 will start to discharge, after storage capacitors 237 are discharged, by output negative signal to the first concussion reverser 238 Input terminal 238a, negative signal is reversed positive signal again and exported to the second concussion reverser 239 by the first concussion reverser 238 Positive signal is reversed negative signal output again by input terminal 239a, the second concussion reverser 239, and dates back third p-type gold again The grid of oxygen half-court school transistor 233 and third N-type MOS field school transistor 236, third N-type MOS field school transistor 236 close, the first p-type metal-oxide half field effect transistor 231, the second p-type MOS field school transistor 232 and third p-type gold oxygen Half-court school transistor 233 is all connected, and storage capacitors 237 just start to charge, and positive signal is exported after charging, continues above step, makes Oscillating circuit 23 is obtained to be able to continue output opposite positive signal and negative signal, and in storage capacitors 237 and the first concussion reverser The contact T1 of 238 connections can generate the oscillator signal of nearly triangular wave, and the control signal of nearly triangular wave is reversed by the first concussion After device 238, control signal can be converted to nearly square wave oscillator signal, therefore in the output end 238b meeting of the first concussion reverser 238 The oscillator signal (contact T2) of approximate square waves is generated, recycles the second concussion reverser 239 by the control signal tune of approximate square waves The whole oscillator signal for square wave is finally believed by the concussion that the output end 239b output waveform of the second concussion reverser 239 is square wave Number；In addition, the first concussion reverser 238, second above-mentioned shakes reverser 239 and also Shu Mite circuit can be used to replace, not As limit.

Please refer to shown in Fig. 5 and circuit 24 have a NAND gate 241, one and circuit reverser 242, the two of NAND gate 241 Input terminal is separately connected third data receiver 24a and oscillator signal receiving end 24b, output end electrical connection and circuit reverser 242 input terminal and the output end electrical connection first control signal output end 24c and second control signal of circuit reverser 242 Output end 24d.

Please refering to shown in Fig. 2 B and circuit 24 will according to oscillator signal and data-signal output by first control signal Output end 24c and second control signal output end 24d output control signal, and received and controlled by the first electrode of mems pump 3 31 Signal processed, and the reversed control signal that reverser 25 transmits is received by second electrode 32, by first electrode 31 and the second electricity Pole 32 receives opposite control signal to make the piezoelectric element (not shown) in mems pump 3 be able to receive through piezoelectric effect To transmit fluid.

Please continue to refer to shown in Fig. 2 B, first group of control circuit 20A has multiple control circuits 20, in first group of control electricity The control circuit 20 to top the list in the 20A of road its for shift register 21 the first data receiver 21b be electrically connected microprocessor 1 use To receive data-signal, the first data output end 21c is also electric other than being electrically connected the latch circuit 22 of same control circuit 20 The first data receiver 21b of the shift register 21 of next control circuit 20 is connected, subsequent control circuit 20 is also same, comes Data-signal is transmitted downwards.

Please refer to Fig. 3 A and Fig. 6, shift register 21 and latch electricity that wherein Fig. 6 is second group of control circuit 20B The circuit structure diagram on road 22.As shown, second group of its structure of control circuit 20B of control circuit 20 and first group of control circuit The clock signal of both 20A is identical, and discrepancy is input is opposite.

In conclusion this case provides a kind of minisize fluid conveyor module, microprocessor using multiple control circuits assist come Multiple mems pumps are controlled respectively, can reduce the burden of microprocessor, without the high cost high-order processor for using multiple pins, It can be readily accomplished and accurately control each mems pump, and solve previous problem, the utility value of great industry, whence mentions in accordance with the law Apply out.

This case as the personage Ren Shi craftsman for being familiar with this technology thinks and be it is all as modify, it is so neither de- such as attached claim Be intended to Protector.

Claims (10)

1. a kind of minisize fluid conveyor module, characterized by comprising:

One microprocessor, one clock signal of output, a latch-up signal and a data-signal；

One special application integrated circuit is electrically connected the microprocessor, to receive the clock signal, the latch-up signal and the data Signal, the special application integrated circuit include multiple control circuits, and each control circuit includes:

One shift register is electrically connected the microprocessor to receive the clock signal and the data-signal；

One latch circuit is electrically connected the microprocessor and the shift register, to receive the latch-up signal and the shift register The data-signal of output；

One and circuit, it is electrically connected the latch circuit, to receive the data-signal of latch circuit output；And

One reverser, electrical connection is somebody's turn to do and circuit；

One oscillating circuit, electrical connection should and circuit, with export an oscillator signal to should and circuit；And

Multiple mems pumps are respectively corresponded with multiple control circuit and are electrically connected.

2. minisize fluid conveyor module as described in claim 1, which is characterized in that the shift register includes at least for the moment Arteries and veins signal input part, one first data receiver and one first data output end, the clock signal input terminal are electrically connected micro- place Device is managed to receive the clock signal, which is electrically connected the microprocessor to receive the data-signal.

3. minisize fluid conveyor module as claimed in claim 2, which is characterized in that the latch circuit includes an at least latch Signal input part, one second data receiver and one second data output end, the latch-up signal input terminal are electrically connected the micro process For device to receive the latch-up signal, which is electrically connected first data output end.

4. minisize fluid conveyor module as claimed in claim 3, which is characterized in that be somebody's turn to do and circuit includes that a third data connect Receiving end, an oscillator signal receiving end, a first control signal output end and a second control signal output end, the third data connect Receiving end is electrically connected second data output end, which is electrically connected the oscillating circuit.

5. minisize fluid conveyor module as claimed in claim 4, which is characterized in that the reverser was electrically connected this and circuit should First control signal output end.

6. minisize fluid conveyor module as claimed in claim 5, which is characterized in that multiple mems pump is all respectively provided with two Electrode, two electrode be electrically connected its correspond to the reverser and should and circuit the second control signal output end.

7. minisize fluid conveyor module as described in claim 1, which is characterized in that the shift register has separately included four shiftings Position transmission gate and four displacement reversers, the four shift transports lock be connected in series, this four displacement reverser connect two-by-two after respectively with The two of them of the four shift transports lock are in parallel.

8. minisize fluid conveyor module as described in claim 1, which is characterized in that the latch circuit includes the transmission of two latches Lock and two latch reversers, the two latches transmission gate be connected in series, the two latches reverser series connection after with the two latches transmission gate One of them is in parallel.

9. minisize fluid conveyor module as described in claim 1, which is characterized in that the oscillating circuit includes one first p-type Metal-oxide half field effect transistor, one second p-type metal-oxide half field effect transistor, a third p-type metal-oxide half field effect transistor, one the oneth N Type metal-oxide half field effect transistor, one second N-type metal-oxide half field effect transistor, a third N-type metal-oxide half field effect transistor, a storage Capacitor, one first concussion reverser and one second concussion reverser, the first p-type metal-oxide half field effect transistor, second p-type gold Oxygen half field effect transistor, the third p-type metal-oxide half field effect transistor, the first N-type metal-oxide half field effect transistor, second N-type Metal-oxide half field effect transistor, the third N-type metal-oxide half field effect transistor are all respectively provided with a base stage, a grid, a source electrode and one Drain electrode, the base stage of the first p-type MOS field school transistor are electrically connected its source electrode, the second p-type MOS field school crystal Base stage and certain voltage of the base stage of pipe and its source electrode, the third p-type MOS field school transistor, first p-type The grid of MOS field school transistor is electrically connected the grid of its drain electrode and the second p-type MOS field school transistor, is somebody's turn to do The drain electrode of first N-type MOS field school transistor, the base stage and its source electrode of the first N-type MOS field school transistor simultaneously connect Ground, and the grid is electrically connected to grid and an input voltage of the second N-type MOS field school transistor, second N-type MOS field school transistor source electrode can be electrically connected its base stage, the base stage of the third N-type MOS field school transistor and connect Ground, the drain electrode of the third N-type MOS field school transistor be electrically connected the third p-type MOS field school transistor the drain electrode, One output end of one input terminal of one end of the storage capacitors and the first concussion reverser, the first concussion reverser is electrically connected It is connected to an input terminal of the second concussion reverser, finally an output end of the second concussion reverser is electrically connected to this and circuit 24 and it is fed back to the grid of the grid of the third p-type MOS field school transistor, the third N-type MOS field school transistor Pole.

10. minisize fluid conveyor module as described in claim 1, which is characterized in that should and circuit include a NAND gate and One and circuit reverser, the NAND gate and should and circuit reverser be connected in series.