CN102921063A - Micro pump - Google Patents
Micro pump Download PDFInfo
- Publication number
- CN102921063A CN102921063A CN 201210437392 CN201210437392A CN102921063A CN 102921063 A CN102921063 A CN 102921063A CN 201210437392 CN201210437392 CN 201210437392 CN 201210437392 A CN201210437392 A CN 201210437392A CN 102921063 A CN102921063 A CN 102921063A
- Authority
- CN
- China
- Prior art keywords
- control chip
- port
- lcds
- micro pump
- stepper motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- Liquid Crystal (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A micro pump belongs to the technical field of medical apparatuses and comprises a three-phase stepping motor, a liquid crystal display and a control chip, wherein the selected type of the liquid crystal display is LCD1602, and the selected type of the control chip is AT89C51. The micro pump has the advantages of being capable of accurately feeding agent and facilitating accurate use.
Description
?
Technical field
The invention belongs to technical field of medical instruments, particularly a kind of micro pump
Background technology
Thereby micro pump commonly used mostly is the micro-injection that DC motor drives realizes medicine in the existing medical treatment, and shortcoming is that direct current generator has carbon brush, needs periodic maintenance, otherwise can make the motor short circuit, causes dosage inaccuracy even excessive administration to cause patient death.
Summary of the invention
Deficiency for prior art exists the invention provides a kind of micro pump.
The technical program is achieved in that and comprises three-phase stepper motor, LCDs and control chip; Wherein LCDs selects model to be: it is AT89C51 that LCD1602, control chip select model; Three-phase stepper motor connects the P1 port of control chip; LCDs connects the P0 port of control chip, the signal input port of P2 port of control chip, P2.0, P2.1 and P2.2 connect respectively three-phase stepper motor begin, just/positive pole of counter-rotating, rotating speed button, beginning, just/counter-rotating, the minus earth of rotating speed button.P2.0, P2.1, P2.2 connect respectively the negative pole that draws resistance, and the positive pole of pull-up resistor connects+Vcc; State indication P0.0, P0.1, P0.2, P0.3, P0.4, P0.5, P0.6 and the P0.7 port of control chip be 7,8,9,10,11,12,13,14 pins of connecting fluid crystal display screen respectively.
Advantage of the present invention is: accurately feeding dose, conveniently accurately use.
Description of drawings
Fig. 1 is this programme structural representation;
The specific embodiment
Detailed structure of the present invention is illustrated with the specific embodiment by reference to the accompanying drawings.
As shown in Figure 1, wherein LCDs selects model to be: it is AT89C51 that LCD1602, control chip select model.
System principle as shown in the figure, the signal importation of P2 mouth, the P0 mouth is LCD1602 LCDs display part, the P1 mouth is as the drive part of motor.This design P2.0, P2.1, P2.2 connect respectively beginning, just/positive pole of counter-rotating, rotating speed button, the minus earth of beginning, just/reverse, rotating speed button.P2.0, P2.1, P2.2 connect respectively the negative pole that draws resistance, and the positive pole of pull-up resistor connects+Vcc.
The state indication connects respectively 7,8,9,10,11,12,13,14 pins of LM016L with P0.0, P0.1, P0.2, P0.3, P0.4, P0.5, P0.6, P0.7.
Claims (2)
1. a micro pump is characterized in that: comprise three-phase stepper motor, LCDs and control chip; Wherein LCDs selects model to be: it is AT89C51 that LCD1602, control chip select model; Three-phase stepper motor connects the P1 port of control chip; LCDs connects the P0 port of control chip, the signal input port of P2 port of control chip, P2.0, P2.1 and P2.2 connect respectively three-phase stepper motor begin, just/positive pole of counter-rotating, rotating speed button, beginning, just/counter-rotating, the minus earth of rotating speed button.
2.P0, P2.1, P2.2 connect respectively the negative pole that draws resistance, the positive pole of pull-up resistor connects+Vcc; State indication P0.0, P0.1, P0.2, P0.3, P0.4, P0.5, P0.6 and the P0.7 port of control chip be 7,8,9,10,11,12,13,14 pins of connecting fluid crystal display screen respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210437392 CN102921063A (en) | 2012-11-06 | 2012-11-06 | Micro pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210437392 CN102921063A (en) | 2012-11-06 | 2012-11-06 | Micro pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102921063A true CN102921063A (en) | 2013-02-13 |
Family
ID=47636079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210437392 Pending CN102921063A (en) | 2012-11-06 | 2012-11-06 | Micro pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102921063A (en) |
-
2012
- 2012-11-06 CN CN 201210437392 patent/CN102921063A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130213 |