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Novel efficient and convenient cuvette magnetic stirrer control system

A magnetic stirrer and magnetic stirring technology, which are used in mixer accessories, chemical instruments and methods, mixers, etc., can solve the problems of large size and inconvenient magnetic stirrer head, noise, and short operating life of disassembling and assembling magnetic stirrer. Guaranteed service life, high stirring efficiency and stable rotation process

Pending Publication Date: 2022-05-13
上海天美科学仪器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a new type of efficient and convenient cuvette magnetic stirrer control system to solve the problem of noise generated by the friction between the stirrer and the bottom of the container during the rotation of the stirrer proposed in the background technology, and the large volume of the magnetic stirrer. The problem of easy disassembly and assembly and the problem of short operating life of the magnetic stirrer

Method used

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  • Novel efficient and convenient cuvette magnetic stirrer control system
  • Novel efficient and convenient cuvette magnetic stirrer control system
  • Novel efficient and convenient cuvette magnetic stirrer control system

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Embodiment 1

[0024] see Figure 1-5 , the present invention provides a technical solution:

[0025] A new efficient and convenient cuvette magnetic stirrer control system, including a magnetic stirring system and a control system, the magnetic stirring system is composed of a magnetic stirring device, the magnetic stirring device includes a cuvette and a magnetic stirring head, the cuvette is located in the magnetic stirring On the stirring area of ​​the head, there is a PTFE magnetic stirring bar inside the cuvette, and N-level coils and S-level coils are installed inside the magnetic stirring head; the control system is composed of control equipment and circuit equipment, and the control equipment is a control box. There are MCU and drive chip inside, the circuit equipment is magnetic stirring control circuit, MCU is connected with the drive chip through the I / O interface with the magnetic stirring control circuit, the drive chip is connected with the magnetic stirring connector through ...

Embodiment 2

[0038] A magnetic stirrer, comprising a magnetic stirring head, a start-stop control button, a speed control button and an indicator light are arranged on the outside of the magnetic stirring head, a DC motor, a permanent magnet and a control circuit are arranged inside the magnetic stirring head, and the control circuits are respectively connected to Start and stop control button, speed control button, indicator light and DC motor, the permanent magnet corresponds to the position of the stirring area of ​​the magnetic stirring head and is driven by the DC motor. There is a container on the stirring area of ​​the magnetic stirring head, and a stirring bar is placed in the container The stirrer of this type of stirrer is a small plastic-sealed magnet (tetrafluoromagnetic stirrer), which rotates under the action of different poles attracting each other and repelling each other with the same pole as the magnetic poles change continuously, thereby driving the stirring of the solutio...

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Abstract

The invention discloses a novel efficient and convenient cuvette magnetic stirrer control system which comprises a magnetic stirring system and a control system, the magnetic stirring system is composed of magnetic stirring equipment, the magnetic stirring equipment comprises a cuvette and a magnetic stirring head, the cuvette is located on a stirring area of the magnetic stirring head, and the cuvette is located on a stirring area of the magnetic stirring head. A stirrer is arranged in the cuvette, and an N-pole coil and an S-pole coil are arranged in the magnetic stirring head; the control system is composed of a control device and a circuit device, the control device is a control box, an MCU and a driving chip are arranged in the control box, according to the magnetic stirrer control system, STEP pulse signals are sent to the driving chip mainly through the MCU, the driving chip is used for continuously alternating excitation phases, heteropolar attraction and homopolar repulsion are utilized, and the STEP pulse signals are transmitted to the driving chip, so that the STEP pulse signals are transmitted to the driving chip, and the STEP pulse signals are transmitted to the driving chip. Therefore, the magnetic stirrer rotates along with the continuous change of the magnetic poles, the purpose of stirring the solution in the cuvette is achieved, and the cuvette has the characteristics of no noise, long service life, small volume and high stirring efficiency.

Description

technical field [0001] The invention relates to the technical field of a magnetic stirrer, in particular to a novel, efficient and convenient control system for a magnetic cuvette stirrer. Background technique [0002] Magnetic stirrer is a laboratory instrument for liquid mixing, mainly used for stirring or simultaneously heating and stirring low-viscosity liquid or solid-liquid mixture. Its basic principle is to use the principle of the same-sex repulsion and opposite-sex attraction of the magnetic field, and use the magnetic field to push the magnetic stirrer placed in the container to perform circular rotation, so as to achieve the purpose of stirring the liquid. [0003] At present, the magnetic stirrers on the market generally use a DC motor to rotate (drive) a permanent magnet, so that the small strip magnet (PTFE magnetic stirrer) sealed by plastic will follow the rotation under the action of the rotating magnetic field, thereby driving The stirring of the solution ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F33/452B01F35/222B01F35/33
Inventor 黄雄胡志东王军令
Owner 上海天美科学仪器有限公司
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