CN202277809U - Digital display rotating speed ultra-low-speed magnetic stirrer - Google Patents
Digital display rotating speed ultra-low-speed magnetic stirrer Download PDFInfo
- Publication number
- CN202277809U CN202277809U CN2011204277138U CN201120427713U CN202277809U CN 202277809 U CN202277809 U CN 202277809U CN 2011204277138 U CN2011204277138 U CN 2011204277138U CN 201120427713 U CN201120427713 U CN 201120427713U CN 202277809 U CN202277809 U CN 202277809U
- Authority
- CN
- China
- Prior art keywords
- speed
- rotating speed
- step motor
- magnetic stirrer
- ultra
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
- Devices For Use In Laboratory Experiments (AREA)
Abstract
The utility model discloses a digital display rotating speed ultra-low-speed magnetic stirrer which is driven by adopting a step motor and has the rotating speed continuously adjustable between 30 turns/minute and 600 turns/minute. A nixie tube can synchronously display the rotating speed of the step motor, and the center of a container placement mark of an upper panel of a shell corresponds to the center of a magnetic field generated by rotation of a magnet driven by the step motor. The magnetic stirrer generates a rotating magnetic field by the magnet driven by the step motor, and the rotating magnetic field is enough to drive a magnetic stirrer in the container to rotate for achieving the purpose of stirring. Apparently, the magnetic stirrer has the advantages of ultralow rotating speed, small volume, low noise, long service life and stronger vibration resistance capacity, displays the rotating speed of the step motor synchronously, and is especially suitable for cell and microorganism culture.
Description
Technical field
The utility model belongs to test apparatus, particularly relates to a kind of digital display rotating speed Ultra-Low Speed magnetic stirring apparatus.
Background technology
The speed of existing magnetic stirring apparatus is higher, and its reason is that agitator drive motor generally adopts alternating current motor, and speed adjustable range is little, and speed is higher generally at 400-1200 rev/min.In the time of need stirring for biological culture, its speed is high, makes the cultured microorganism survival rate low.
Summary of the invention
The utility model is to have the above-mentioned technical problem that magnetic stirring apparatus exists now in order to solve, and a kind of digital display rotating speed Ultra-Low Speed magnetic stirring apparatus is provided.The utility model is taked following technical scheme for realizing above-mentioned purpose: this digital display rotating speed Ultra-Low Speed magnetic stirring apparatus is placed sign and mixing speed adjustment knob by housing, container; Charactron is formed; Characteristic is to substitute the conventional AC motor with stepper motor to drive the magnet rotation; With Single-chip Controlling step motor driven chip A3977; The speed of setting with the A/D port processing potentiometer of single-chip microcomputer simultaneously shows the stepper motor rotary speed simultaneously, and the speed of control step motor rotation realizes open loop control.
The utility model can also be taked following technical measures:
Said single-chip microcomputer and step motor driven chip A3977 are provided with external shared rectifier power source.
The beneficial effect and the advantage of the utility model are: this digital display rotating speed Ultra-Low Speed magnetic stirring apparatus is by step motor driven; The rotation of drive magnet, its speed is adjustable continuously between 30-600 rev/min, and can show the stepper motor rotary speed; Especially be used in the cell that needs stirring at low speed; The microbe culture occasion has the low running of rotating speed steadily, the outstanding advantage of visible rotating speed directly perceived.
Description of drawings
Accompanying drawing 1 is the utility model example structure sketch map.
Accompanying drawing 2 is that Figure 1A is to view.
Accompanying drawing 3 is Fig. 1 embodiment electricity theory diagrams.
Label among the figure: 1 housing, 2 mixing speeds adjustment knob, 3 magnet, 4 stepper motors, 5 external shared rectifier power source sockets, 6 containers are placed sign, 7 control panels, 8 charactrons.
The specific embodiment
Further specify the utility model below in conjunction with embodiment and accompanying drawing thereof.
Like Fig. 1,2, illustrated embodiment, the stepper motor 4 in the housing 1 of this Ultra-Low Speed magnetic stirring apparatus drives magnet 3 rotations, and magnet indicates that with the central point of stepper motor and the container placement of housing top panel 6 center is corresponding.The housing rear board is provided with external shared rectifier power source socket 5.It is adjustable continuously between 30 rev/mins-600 rev/mins that mixing speed adjustment knob 2 is used for adjusting the rotating speed of stepper motor, and show the stepper motor rotary speed simultaneously.
As Fig. 3, shown in; The driving module that circuit board 7 in the housing is provided with single-chip microcomputer and is made up of 1 dual H-bridge integrated circuit A3977; The PWM output of single-chip microcomputer is connected to the control input end that drives module dual H-bridge drive circuit, and the control output end of dual H-bridge drive circuit connects stepper motor.The A/D mouth of single-chip microcomputer is connected with mixing speed adjustment potentiometer, and this potentiometer is provided with the mixing speed adjustment knob 2 that is positioned at the housing front panel, and charactron 8 shows the stepper motor rotary speed simultaneously.
As shown in Figure 3, the PWM of single-chip microcomputer makes step motor driven touch 2 groups of A3977 output conductings alternately of group, stepper motor also alternate conduction and rotating of loop A and coil B.Stepper motor drives the magnet rotation and forms rotating excitation field.Magnetic stirrer in the container can at the uniform velocity rotate under the rotating excitation field effect.Can adjust the speed that stepper motor rotates through mixing speed adjustment knob, can change mixing speed, charactron 8 shows the stepper motor rotary speed simultaneously.
Claims (2)
1. digital display rotating speed Ultra-Low Speed magnetic stirring apparatus; Placing sign, mixing speed adjustment knob and charactron by housing, container forms; It is characterized in that adopting step motor driven; Rotating speed is continuous adjustable and speed between 30 rev/mins-600 rev/mins; The container of housing top panel is placed sign center and magnet rotation that stepper motor drives, and to produce magnetic field center corresponding, and this magnetic stirring apparatus produces rotating excitation field by the magnet that stepper motor drives, and this rotating excitation field is enough to drive that magnetic stirrer in the container rotates and the purpose that reaches stirring.
2. Ultra-Low Speed magnetic stirring apparatus according to claim 1 is characterized in that: said single-chip microcomputer and step motor driving circuit are provided with external shared rectifier power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204277138U CN202277809U (en) | 2011-11-02 | 2011-11-02 | Digital display rotating speed ultra-low-speed magnetic stirrer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204277138U CN202277809U (en) | 2011-11-02 | 2011-11-02 | Digital display rotating speed ultra-low-speed magnetic stirrer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202277809U true CN202277809U (en) | 2012-06-20 |
Family
ID=46223996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204277138U Expired - Fee Related CN202277809U (en) | 2011-11-02 | 2011-11-02 | Digital display rotating speed ultra-low-speed magnetic stirrer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202277809U (en) |
-
2011
- 2011-11-02 CN CN2011204277138U patent/CN202277809U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202590702U (en) | Ultra-low speed magnetic stirring device with speed feedback | |
| CN205055924U (en) | Ultralow fast magnetic stirrers with speed change mechanism | |
| CN104651229B (en) | A kind of magnetic agitation constant temperature aerlbic culture case | |
| CN102350252A (en) | Stirring method and stirring apparatus thereof | |
| CN205055921U (en) | Ultralow fast magnetic stirrers of four -head | |
| CN202277809U (en) | Digital display rotating speed ultra-low-speed magnetic stirrer | |
| CN202289944U (en) | Four-station ultra-low-speed magnetic stirrer | |
| CN201519563U (en) | Ultrathin submerged digital-display magnetic stirrer | |
| CN205055920U (en) | Ultralow fast magnetic stirrers | |
| CN201519564U (en) | Ultrathin digital-display magnetic stirrer | |
| CN201551981U (en) | Ultra-thin magnetic stirrer | |
| CN203302917U (en) | Disconnect-type milk bubble machine | |
| CN202844946U (en) | Planet magnetic stirring device | |
| CN202306896U (en) | Conic section demonstrating device | |
| CN207734936U (en) | Multichannel magnetic force evenly mixing device | |
| CN202237871U (en) | Coating stirring device | |
| CN215388962U (en) | Speed-adjustable heating magnetic stirrer | |
| CN203155123U (en) | Numerical-control constant-temperature rotating-speed-adjustable stirrer | |
| CN203123899U (en) | Full-automatic multifunctional stirrer | |
| CN203002291U (en) | Stirrer | |
| CN103013827B (en) | Cell vibration meter | |
| CN206672395U (en) | A kind of physics teaching showing stand | |
| CN205055922U (en) | Water bath with thermostatic control four -head magnetic stirrers's magnetic stirrer actuating mechanism | |
| CN202143554U (en) | Magnetized cup capable of generating dynamic magnetic field | |
| CN218485806U (en) | Magnetic stirrer for medicine production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Tianjin Ounuo Instrument Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120620 Termination date: 20131102 |