CN102225379A - Electromagnetic motion device applied to micro-tube centrifugal equipment - Google Patents

Electromagnetic motion device applied to micro-tube centrifugal equipment Download PDF

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Publication number
CN102225379A
CN102225379A CN2011100748822A CN201110074882A CN102225379A CN 102225379 A CN102225379 A CN 102225379A CN 2011100748822 A CN2011100748822 A CN 2011100748822A CN 201110074882 A CN201110074882 A CN 201110074882A CN 102225379 A CN102225379 A CN 102225379A
Authority
CN
China
Prior art keywords
magnet
motion device
electromagnetic motion
solenoid
arranged
Prior art date
Application number
CN2011100748822A
Other languages
Chinese (zh)
Inventor
张雷
徐辉
吴永杰
Original Assignee
大龙兴创实验仪器(北京)有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 大龙兴创实验仪器(北京)有限公司 filed Critical 大龙兴创实验仪器(北京)有限公司
Priority to CN2011100748822A priority Critical patent/CN102225379A/en
Publication of CN102225379A publication Critical patent/CN102225379A/en

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Abstract

The invention relates to an electromagnetic motion device applied to micro-tube centrifugal equipment. The electromagnetic motion device comprises a rotor working chamber arranged in a device body, wherein a magnet spindle used for holding a sample tube is arranged at the middle part of the rotor working chamber; the magnet spindle is arranged on a magnet; the magnet is arranged in the electromagnetic motion device under the rotor working chamber; and the electromagnetic motion device is connected with the rotor working chamber through the magnet spindle. The electromagnetic motion device applied to micro-tube centrifugal equipment has the advantages that the magnet does not contact a coil during the operation of the electromagnetic motion device, the frictional heat generation is avoided even if the magnet rotates at a high speed, the electromagnetic motion device has compact space structure and light weight, and the miniaturization of centrifugal machine is realized practically.

Description

Be applied to the electromagnetic motion device of micro tube centrifugation apparatus

Technical field

The present invention relates to a kind of electromagnetic motion device, relate in particular to a kind of electromagnetic motion device that is applied to the micro tube centrifugation apparatus.

Background technology

Centrifuge is the equipment that sample is separated, and is widely used in fields such as biomedicine, experimental study, petrochemical industry, agricultural, food hygiene, and it utilizes the difference of the sinking speed of different material in centrifugal force field, realizes that the analysis of sample separates.Present commercially available centrifuge is of a great variety, with different indexs such as capacity, rotating speed, temperature multiple division is arranged, as small-sized high speed centrifugal machine, refrigerated centrifuge, the big capacity centrifuge of desk type high speed etc.In the compact centrifuge application, particularly use micro tube, as the user of the following centrifuge tube of 500ul, traditional compact centrifuge is also too heavy, and the control motor in the centrifuge is producing high heat under the rotation at a high speed, for the centrifuge even running will increase heat dissipation equipment toward contact.High-speed electric expreess locomotive and heat dissipation equipment also make compact centrifuge be difficult to accomplish small volume and less weight.

Summary of the invention

The purpose of this invention is to provide a kind of electromagnetic motion device that is applied to the micro tube centrifugation apparatus, overcome the deficiency of above-mentioned aspect in the existing product.

The objective of the invention is to be achieved through the following technical solutions:

A kind of electromagnetic motion device that is applied to the micro tube centrifugation apparatus, comprise control panel, body and loam cake by the bearing pin flexible connection, the body front surface is provided with control panel, control panel is provided with display screen and is used to be provided with some control handles of parameter, internal body is provided with the working rotor chamber, middle part, working rotor chamber is provided with the magnet shaft that is used for placing sample cell, shaft is arranged on the magnet in the magnet, magnet is set in place in the electromagnetic motion device of below, working rotor chamber, the electromagnetic motion device is connected by shaft in the magnet with the working rotor chamber, and the electromagnetic motion device is by evenly being arranged on magnet first solenoid all around, second solenoid, the 3rd solenoid, shaft constitutes in the 4th solenoid and the magnet.

Described magnet and described first solenoid, second solenoid, the 3rd solenoid and the 4th solenoid are positioned at same plane, and the angle of adjacent two solenoids is 90 °.

Beneficial effect of the present invention is: this product is by using this electromagnetic motion device, and magnet does not contact with coil, even also can frictional heat when magnet rotates at a high speed; Electromagnetic motion device space structure compactness, weight are low, have really realized the microminiaturization of centrifuge.

Description of drawings

With reference to the accompanying drawings the present invention is described in further detail below.

Fig. 1 is the described structural representation that is applied to the electromagnetic motion device of micro tube centrifugation apparatus of the embodiment of the invention;

Fig. 2 is the described electromagnetic motion device duty reference diagram that is applied to the micro tube centrifugation apparatus of the embodiment of the invention;

Fig. 3 embodiment of the invention is described to be applied to one of fundamental diagram in the electromagnetic motion device of micro tube centrifugation apparatus;

Fig. 4 embodiment of the invention is described be applied in the electromagnetic motion device of micro tube centrifugation apparatus fundamental diagram two;

Fig. 5 embodiment of the invention is described be applied in the electromagnetic motion device of micro tube centrifugation apparatus fundamental diagram three;

Fig. 6 embodiment of the invention is described be applied in the electromagnetic motion device of micro tube centrifugation apparatus fundamental diagram four.

Among the figure:

1, control panel; 2, body; 3, loam cake; 4, display screen; 5, control handle; 6, working rotor chamber; 7, shaft in the magnet; 8, magnet; 9, electromagnetic motion device; 10, first solenoid; 11, second solenoid; 12, the 3rd solenoid; 13, the 4th solenoid.

The specific embodiment

Shown in Fig. 1-2, the described a kind of electromagnetic motion device that is applied to the micro tube centrifugation apparatus of the embodiment of the invention, comprise control panel 1, body 2 and loam cake 3 by the bearing pin flexible connection, body 2 front surfaces are provided with control panel 1, control panel 1 is provided with display screen 4 and is used to be provided with some control handles 5 of parameter, body 2 inside are provided with working rotor chamber 6,6 middle parts, working rotor chamber are provided with the magnet shaft 7 that is used for placing sample cell, shaft 7 is arranged on the magnet 8 in the magnet, magnet 8 is set in place in the electromagnetic motion device 9 of 6 belows, working rotor chamber, electromagnetic motion device 9 is connected by shaft in the magnet 7 with working rotor chamber 6, described electromagnetic motion device 9 is by evenly being arranged on magnet 8 first solenoid 10 all around, second solenoid 11, the 3rd solenoid 12, shaft 7 constitutes in the 4th solenoid 13 and the magnet, the described magnet 8 and first solenoid 10, second solenoid 11, the 3rd solenoid 12 and the 4th solenoid 13 are positioned at same plane, and the angle of adjacent two solenoids is 90 °.

Operation principle of the present invention is:

As shown in Figure 3, but electromagnetic motion device 8 comprises the hot-wire coil of locus symmetry, the magnet 8 that is arranged in symmetrical centre, magnet shaft 7.In the running, axisymmetric second solenoid 11 and the 4th solenoid 13 no powers, first solenoid 10 and the 3rd solenoid 12 forward energising simultaneously, according to the right-handed helix rule, first solenoid 10 produces " S " pole field, the 3rd solenoid 12 that point to magnet 8 and produces " N " pole field that points to magnet 8, under the effect in magnetic field, magnet 8 " N " utmost point that is in free state points to first solenoid 10, " S " utmost point points to the 3rd solenoid 12; A is after second in energising, axial symmetry first solenoid 10 and 12 outages of the 3rd solenoid, second solenoid 11 and the energising of the 4th solenoid 13 forwards simultaneously, as shown in Figure 4, this moment, second solenoid 11 and the 4th solenoid 13 produced " S " utmost point that points to magnet and the magnetic field of " N " utmost point respectively, and magnet 8 is rotated counterclockwise 90 from the position of Fig. 3 and spends into the position of Fig. 4 under the effect in magnetic field; Continue energising a second, axial symmetry second solenoid 11 and 13 outages of the 4th solenoid, while first solenoid 10 and the 3rd solenoid 12 are oppositely switched on, as shown in Figure 5, this moment, first solenoid 10 and the 3rd solenoid 12 produced " N " utmost point that points to magnet 8 and the magnetic field of " S " utmost point respectively, and magnet 8 is rotated counterclockwise 90 from the position of Fig. 4 and spends into the position of Fig. 5 under the effect in magnetic field; A switch on once more after second, axial symmetry first solenoid 10 and 12 outages of the 3rd solenoid, while second solenoid 11 and the 4th solenoid 13 are oppositely switched on, as shown in Figure 6, this moment, second solenoid 11 and the 4th solenoid 13 produced " N " utmost point of sensing magnet and the magnetic field of " S " utmost point respectively, magnet 8 is rotated counterclockwise 90 degree in the effect lower magnet position in magnetic field, the position as shown in Figure 6; According to energising once more shown in Figure 3, then magnet 8 is rotated counterclockwise 90 degree and gets back to position as shown in Figure 3, and magnet 8 is finished the rotation of a circle under the effect of magnetic field.In the manner described above coil is continued power on/off, then magnet 8 is with the speed rotation of 15/a rpm, and promptly rotor speed is 15/a rpm.

Claims (2)

1. electromagnetic motion device that is applied to the micro tube centrifugation apparatus, comprise and be arranged on the inner working rotor chamber (6) of body (2), it is characterized in that: working rotor chamber (6) middle part is provided with the magnet shaft (7) that is used for placing sample cell, shaft in the magnet (7) is arranged on the magnet (8), magnet (8) is set in place in the electromagnetic motion device (9) of working rotor chamber (6) below, electromagnetic motion device (9) is connected by shaft in the magnet (7) with working rotor chamber (6), and electromagnetic motion device (9) is by evenly being arranged on magnet (8) first solenoid (10) all around, second solenoid (11), the 3rd solenoid (12), shaft (7) constitutes in the 4th solenoid (13) and the magnet.
2. the electromagnetic motion device that is applied to the micro tube centrifugation apparatus according to claim 1, it is characterized in that: described magnet (8) is positioned at same plane with first solenoid (10), second solenoid (11), the 3rd solenoid (12) and the 4th solenoid (13), and the angle of adjacent two solenoids is 90 °.
CN2011100748822A 2011-03-28 2011-03-28 Electromagnetic motion device applied to micro-tube centrifugal equipment CN102225379A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011100748822A CN102225379A (en) 2011-03-28 2011-03-28 Electromagnetic motion device applied to micro-tube centrifugal equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011100748822A CN102225379A (en) 2011-03-28 2011-03-28 Electromagnetic motion device applied to micro-tube centrifugal equipment

Publications (1)

Publication Number Publication Date
CN102225379A true CN102225379A (en) 2011-10-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011100748822A CN102225379A (en) 2011-03-28 2011-03-28 Electromagnetic motion device applied to micro-tube centrifugal equipment

Country Status (1)

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CN (1) CN102225379A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1538804A1 (en) * 1966-07-08 1970-10-01 Girard Marcel Gilbert Brushless DC motor
US4551658A (en) * 1981-12-08 1985-11-05 Rhee Byung Y D.C. Motor with centrifugal separation starting brush
US5321986A (en) * 1992-08-21 1994-06-21 Alliedsignal Inc. Polar loop implementation for a two degree of freedom gyro
US5971908A (en) * 1997-03-29 1999-10-26 Eppendorf-Netheler-Hinz Gmbh Laboratory centrifuge with electric motor
JP2001028899A (en) * 1999-07-13 2001-01-30 Canon Electronics Inc Stepping motor
US20100213777A1 (en) * 2009-02-23 2010-08-26 Hanning Elektro-Werke Gmbh & Co. Kg Body of revolution

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1538804A1 (en) * 1966-07-08 1970-10-01 Girard Marcel Gilbert Brushless DC motor
US4551658A (en) * 1981-12-08 1985-11-05 Rhee Byung Y D.C. Motor with centrifugal separation starting brush
US5321986A (en) * 1992-08-21 1994-06-21 Alliedsignal Inc. Polar loop implementation for a two degree of freedom gyro
US5971908A (en) * 1997-03-29 1999-10-26 Eppendorf-Netheler-Hinz Gmbh Laboratory centrifuge with electric motor
JP2001028899A (en) * 1999-07-13 2001-01-30 Canon Electronics Inc Stepping motor
US20100213777A1 (en) * 2009-02-23 2010-08-26 Hanning Elektro-Werke Gmbh & Co. Kg Body of revolution

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Application publication date: 20111026

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