CN201519563U - Ultrathin submerged digital-display magnetic stirrer - Google Patents
Ultrathin submerged digital-display magnetic stirrer Download PDFInfo
- Publication number
- CN201519563U CN201519563U CN2009200979011U CN200920097901U CN201519563U CN 201519563 U CN201519563 U CN 201519563U CN 2009200979011 U CN2009200979011 U CN 2009200979011U CN 200920097901 U CN200920097901 U CN 200920097901U CN 201519563 U CN201519563 U CN 201519563U
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- magnetic stirrer
- magnetic stirring
- stirring apparatus
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Abstract
The utility model discloses an ultrathin submerged digital-display magnetic stirrer which consists of a magnetic stirrer and a controller that are respectively provided with a shell, wherein the shell of the magnetic stirrer is a sealed shell, in which four coils generating a rotating magnetic field are arranged; the controller is provided with a single chip microcomputer and a driving module which consists of each double-H-bridge driving circuit, each PWM output end of the single chip computer is correspondingly connected with the control input end of each double-H-bridge driving circuit of the driving module respectively, and the control output end of each double-H-bridge driving circuit is connected with the four coils of the magnetic stirrer respectively by cables. The magnetic stirrer and the controller of the ultrathin submerged digital-display magnetic stirrer are connected by the cables, and the ultrathin submerged digital-display magnetic stirrer can not only conduct chemical tests under a non-water bath state, but also facilitate the accomplishment of the chemical tests under a water bath state by placing the magnetic stirrer with the sealed shell into a water bath kettle. The ultrathin submerged digital-display magnetic stirrer is characterized by small volume, ultra-thin size, no wear, no noise, long service life and relatively stronger vibration resistance and has the obvious advantages of wide application range and convenient use.
Description
Technical field
The utility model belongs to test apparatus, particularly relates to a kind of ultra-thin diving digital display magnetic stirring apparatus.
Background technology
The thickness of existing magnetic stirring apparatus is bigger, and its reason is that the magnetically-actuated mechanism of agitator magnetic stirrer is that magnet by motor, the magnet supporting plate that is installed on electric machine main shaft and this gripper shoe symmetry two ends constitutes.The magnetically-actuated mechanism of above-mentioned agitator not only exist volume big, wearing and tearing are arranged, the life-span is short and the relatively poor defective of anti-vibration ability, also exists magnetic stirring apparatus can not be placed on the practical problem of using in the water-bath simultaneously.
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 ultra-thin diving digital display magnetic stirring apparatus is provided.
The utility model is taked following technical scheme for achieving the above object: this ultra-thin diving digital display magnetic stirring apparatus is made up of magnetic stirring apparatus that is respectively equipped with housing and controller, the housing of described magnetic stirring apparatus is a seal casinghousing, be provided with four coils that circumference is symmetrically distributed in the seal casinghousing, the axis of each coil is parallel and perpendicular to the seal casinghousing top panel, the pole polarity pole polarity identical and adjacent two coils with another that pass to next adjacent two coil of DC current state are opposite, thereafter each relative coil alternately changes the DC current direction successively, the upper surface of each coil is respectively equipped with the pole piece of symmetry, corresponding pole piece longitudinal axis level intersects, its intersection point is corresponding with the center that the container of housing top panel is placed sign, be provided with the driving module that single-chip microcomputer and each dual H-bridge drive circuit constitute in the described controller housing, corresponding respectively each the dual H-bridge drive circuit control input end that drives module that is connected in of each PWM output of single-chip microcomputer, four coils that are connected in the magnetic stirring apparatus seal casinghousing are pulled via line respectively in each dual H-bridge drive circuit control output end, one I/O mouth of described single-chip microcomputer is connected with the potentiometer of adjusting the PWM square width, this potentiometer is provided with the mixing speed that is positioned at the controller housing surface and adjusts knob, and another I/O mouth is connected in the rotation revolution digital display on controller housing surface via decoder driver.
The utility model can also be taked following technical measures:
Described controller housing is provided with and connects the socket that drives each dual H-bridge drive circuit control output end of module, and its plug is pulled four coils that are connected in the magnetic stirring apparatus seal casinghousing via line.
Described single-chip microcomputer and each dual H-bridge drive circuit are provided with external shared rectifier power source.
The beneficial effects of the utility model with advantage are: the magnetic stirring apparatus of this ultra-thin diving digital display magnetic stirring apparatus is pulled by line with controller and is connected, not only can carry out the chemical test under the non-water-bath state, be convenient to that also the magnetic stirring apparatus with seal casinghousing is inserted water-bath and finish chemical test under the water-bath state.Each coil of magnetic stirring apparatus drives its pole polarity rule variation and generation rotating excitation field under the control at single-chip microcomputer and dual H-bridge drive circuit thereof, and this rotating excitation field can drive the magnetic stirrer rotation in the container and reach the stirring purpose.This magnetic stirring apparatus adopts each coil to form rotating excitation field, has little, ultra-thin, the no wearing and tearing of volume, noiseless, the life-span is grown, the anti-vibration ability is stronger characteristics, and the height of an embodiment seal casinghousing only has 25mm.The utlity model has applied range and outstanding advantage easy to use.
Description of drawings
Accompanying drawing 2 is that Fig. 1 magnetic stirring apparatus A is to zoomed-in view.
Accompanying drawing 3 is Fig. 2 part section structural representations.
Accompanying drawing 4 is Fig. 1 embodiment electricity theory diagrams.
Number in the figure: 1 controller, 2 digital displays, 3 mixing speeds are adjusted knob, 4 supporting legs, 5 lines are pulled, 6 magnetic stirring apparatus, 7 containers are placed sign, 8 gripper shoes, 9 coils, 10 pole pieces, 11 conducting magnetic columns.
The specific embodiment
Further specify the utility model below in conjunction with embodiment and accompanying drawing thereof.
Embodiment as shown in Figure 1, this ultra-thin diving digital display magnetic stirring apparatus is made up of magnetic stirring apparatus 6 that is respectively equipped with housing and controller 1, and controller 1 is provided with supporting leg 4.
Shown in Fig. 2,3, the housing of magnetic stirring apparatus 6 is seal casinghousings, gripper shoe 8 in the seal casinghousing is provided with four coils 9 that are symmetrically distributed by conducting magnetic column 11 fixing also circumference, the axis of each coil is parallel and perpendicular to the seal casinghousing top panel, the upper surface of each coil is respectively equipped with the pole piece 10 of symmetry, corresponding pole piece longitudinal axis level intersects, and its intersection point is corresponding with the center that the container of housing top panel is placed sign 7.
Shown in Fig. 1,4, be provided with the circuit board that constitutes by single-chip microcomputer and driving module in the housing of controller 1, drive module and constitute by a plurality of dual H-bridge integrated circuit L298.Each PWM output of single-chip microcomputer is connected to the control input end that drives each dual H-bridge drive circuit of module, and the control output end of each dual H-bridge drive circuit connects loop A, B, C, the D of magnetic stirring apparatus 6 respectively.One I/O mouth of single-chip microcomputer is connected with the potentiometer of adjusting the PWM width, and this potentiometer is provided with the mixing speed that is positioned at the controller housing front panel and adjusts knob 3.Another I/O mouth of single-chip microcomputer is connected in revolution display 2 via decoder driver, and this display shows the revolution of rotating excitation field.External rectification power is single-chip microcomputer and the common source that drives module, and the controller housing rearing-box plate is provided with this external shared rectifier power source socket.The controller housing rearing-box plate also is provided with and connects the socket that drives each dual H-bridge drive circuit control output end of module, pulls 5 four coils that are connected in the magnetic stirring apparatus seal casinghousing with the plug that this socket is pegged graft via line.
As shown in Figure 5, each PWM of single-chip microcomputer pole polarity (S) that to make adjacent loop A identical with coil B pole polarity (N) and adjacent two coils with another be coil C and coil D is opposite.If power up moment loop A to the pole polarity of coil D shown in Fig. 5 a, thereafter each relative coil such as loop A and coil C or coil B and coil D alternately change the DC current direction successively under the effect of PWM, the pole polarity that is each coil is by corresponding change shown in Fig. 5 b, Fig. 5 c, Fig. 5 d, and its result makes each pole piece form rotating excitation field.Magnetic stirrer in the container can at the uniform velocity rotate under the rotating excitation field effect.Can adjust the square width of PWM by the potentiometer of Fig. 4, can change mixing speed, and show mixing speeds from the digital display 2 of Fig. 1.
Claims (3)
1. ultra-thin diving digital display magnetic stirring apparatus, it is characterized in that: form by magnetic stirring apparatus that is respectively equipped with housing and controller, the housing of described magnetic stirring apparatus is a seal casinghousing, be provided with four coils that circumference is symmetrically distributed in the seal casinghousing, the axis of each coil is parallel and perpendicular to the seal casinghousing top panel, the pole polarity pole polarity identical and adjacent two coils with another that pass to next adjacent two coil of DC current state are opposite, thereafter each relative coil alternately changes the DC current direction successively, the upper surface of each coil is respectively equipped with the pole piece of symmetry, corresponding pole piece longitudinal axis level intersects, its intersection point is corresponding with the center that the container of housing top panel is placed sign, be provided with the driving module that single-chip microcomputer and each dual H-bridge drive circuit constitute in the described controller housing, corresponding respectively each the dual H-bridge drive circuit control input end that drives module that is connected in of each PWM output of single-chip microcomputer, four coils that are connected in the magnetic stirring apparatus seal casinghousing are pulled via line respectively in each dual H-bridge drive circuit control output end, one I/O mouth of described single-chip microcomputer is connected with the potentiometer of adjusting the PWM square width, this potentiometer is provided with the mixing speed that is positioned at the controller housing surface and adjusts knob, and another I/O mouth is connected in the rotation revolution digital display on controller housing surface via decoder driver.
2. ultra-thin diving digital display magnetic stirring apparatus according to claim 1, it is characterized in that: described controller housing is provided with and connects the socket that drives each dual H-bridge drive circuit control output end of module, and its plug is pulled four coils that are connected in the magnetic stirring apparatus seal casinghousing via line.
3. ultra-thin diving digital display magnetic stirring apparatus according to claim 1 is characterized in that: described single-chip microcomputer and each dual H-bridge drive circuit are provided with external shared rectifier power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200979011U CN201519563U (en) | 2009-07-23 | 2009-07-23 | Ultrathin submerged digital-display magnetic stirrer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200979011U CN201519563U (en) | 2009-07-23 | 2009-07-23 | Ultrathin submerged digital-display magnetic stirrer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201519563U true CN201519563U (en) | 2010-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200979011U Expired - Fee Related CN201519563U (en) | 2009-07-23 | 2009-07-23 | Ultrathin submerged digital-display magnetic stirrer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201519563U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800226A (en) * | 2012-07-10 | 2012-11-28 | 沈阳大学 | Digital display temperature resistance magnetic force heating stirrer for experiment |
| CN103055749A (en) * | 2012-12-21 | 2013-04-24 | 淮南联合大学 | Portable electromagnetic direct driven magnetic stirrer |
| CN105797638A (en) * | 2014-12-31 | 2016-07-27 | 苏州捷美电子有限公司 | Magnetic stirrer |
-
2009
- 2009-07-23 CN CN2009200979011U patent/CN201519563U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800226A (en) * | 2012-07-10 | 2012-11-28 | 沈阳大学 | Digital display temperature resistance magnetic force heating stirrer for experiment |
| CN103055749A (en) * | 2012-12-21 | 2013-04-24 | 淮南联合大学 | Portable electromagnetic direct driven magnetic stirrer |
| CN103055749B (en) * | 2012-12-21 | 2015-12-02 | 淮南联合大学 | Portable electromagnetic direct driven magnetic stirrer |
| CN105797638A (en) * | 2014-12-31 | 2016-07-27 | 苏州捷美电子有限公司 | Magnetic stirrer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100707 Termination date: 20110723 |