CN202289944U - Four-station ultra-low-speed magnetic stirrer - Google Patents
Four-station ultra-low-speed magnetic stirrer Download PDFInfo
- Publication number
- CN202289944U CN202289944U CN 201120427712 CN201120427712U CN202289944U CN 202289944 U CN202289944 U CN 202289944U CN 201120427712 CN201120427712 CN 201120427712 CN 201120427712 U CN201120427712 U CN 201120427712U CN 202289944 U CN202289944 U CN 202289944U
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- Prior art keywords
- low
- speed
- ultra
- rotating
- magnetic stirrer
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M27/00—Means for mixing, agitating or circulating fluids in the vessel
- C12M27/02—Stirrer or mobile mixing elements
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/42—Means for regulation, monitoring, measurement or control, e.g. flow regulation of agitation speed
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Zoology (AREA)
- Biomedical Technology (AREA)
- Sustainable Development (AREA)
- Microbiology (AREA)
- Biochemistry (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Biotechnology (AREA)
- Analytical Chemistry (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The utility model relates to a four-station ultra-low-speed magnetic stirrer. According to the four-station ultra-low-speed magnetic stirrer, one driving system is used for driving four stepping motors which drive four magnets to form four rotating magnetic fields, and the rotating speed is continuously adjustable in the range of 30 revolutions per minute to 600 revolutions per minute; and a container placement mark center corresponds to the center of the magnetic field generated by rotation of the magnets which are driven by the stepping motors. According to the four-station ultra-low-speed magnetic stirrer, the magnets are driven by the stepping motors to generate the rotating magnetic field, and the rotating magnetic field can drive a magnetic stirring bar in a container to rotate so as to fulfill the aim of stirring. Obviously, the four-station ultra-low-speed magnetic stirrer has the advantages of ultra-low rotating speed, small size, low noise, long service life and strong vibration resistance, and the rotating speeds of the stepping motors of four stations are completely consistent. The four-station ultra-low-speed magnetic stirrer is particularly suitable for cells and microculture, particularly for cells requiring low-speed stirring, and contrast experiment of microculture.
Description
Technical field
The utility model belongs to test apparatus, particularly relates to a kind of four station Ultra-Low Speed magnetic stirring apparatus.
Background technology
The speed of existing multistation 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.Be difficult to accomplish that rotating speed is synchronous fully, when needs are the contrast experiment, increase uncertain.
Summary of the invention
The utility model is for the above-mentioned technical problem that solves existing multistation magnetic stirring apparatus existence a kind of four station Ultra-Low Speed magnetic stirring apparatus to be provided.The utility model is by realizing that above-mentioned purpose takes following technical scheme: this Ultra-Low Speed magnetic stirring apparatus is placed sign, mixing speed adjustment knob, 4 stepper motor assemblies and control panel by housing, container and is formed the driving module that control panel is provided with single-chip microcomputer and is made up of 1 dual H-bridge integrated circuit A3977.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; A driven unit drives 4 stepper motors simultaneously, thereby the speed that guarantees 4 stepper motor rotations is in full accord.
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: these four station Ultra-Low Speed magnetic stirring apparatus are by step motor driven; The rotation of drive magnet; Its speed is adjustable continuously between 30-600 rev/min, uses a drive system to drive 4 stepper motors simultaneously, thereby the speed that guarantees 4 stepper motor rotations is in full accord; Needing to be particularly useful for the cell of stirring at low speed, microbe culture need be done contrast experiment's occasion.
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.
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.Four stepper motors have by same drive system control, can guarantee that its rotating speed is in full accord.
The PWM output of machine 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.
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.Four stepper motors drive four magnet rotations and form four rotating excitation fields.Magnetic stirrer in the container can at the uniform velocity rotate under the rotating excitation field effect.The speed that stepper motor rotates can be adjusted through mixing speed adjustment knob, mixing speed can be changed.
Claims (2)
1. four station Ultra-Low Speed magnetic stirring apparatus; Form by housing, container placement sign, mixing speed adjustment knob, 4 stepper motor assemblies, control panels; It is characterized in that adopting step motor driven, rotating speed is adjustable continuously between 30 rev/mins-600 rev/mins, and it is corresponding with the magnet rotation generation magnetic field center that stepper motor drives that the container of housing top panel is placed the sign center; This magnetic stirring apparatus produces rotating excitation field by the magnet that stepper motor drives; This rotating excitation field is enough to drive the magnetic stirrer rotation in the container and reaches the purpose of stirring, and a cover system drives 4 stepper motors simultaneously by a drive system, guarantees that 4 stepper motors are synchronous fully.
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 |
|---|---|---|---|
| CN 201120427712 CN202289944U (en) | 2011-11-02 | 2011-11-02 | Four-station ultra-low-speed magnetic stirrer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120427712 CN202289944U (en) | 2011-11-02 | 2011-11-02 | Four-station ultra-low-speed magnetic stirrer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202289944U true CN202289944U (en) | 2012-07-04 |
Family
ID=46358928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120427712 Expired - Fee Related CN202289944U (en) | 2011-11-02 | 2011-11-02 | Four-station ultra-low-speed magnetic stirrer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202289944U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113509875A (en) * | 2021-05-10 | 2021-10-19 | 清华大学 | Electric drive magnetic force rotating stirring device |
-
2011
- 2011-11-02 CN CN 201120427712 patent/CN202289944U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113509875A (en) * | 2021-05-10 | 2021-10-19 | 清华大学 | Electric drive magnetic force rotating stirring device |
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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: 20120704 Termination date: 20131102 |