CN105119462B - A kind of electromagnetic linear actuator using fan cooling - Google Patents
A kind of electromagnetic linear actuator using fan cooling Download PDFInfo
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- CN105119462B CN105119462B CN201510660746.XA CN201510660746A CN105119462B CN 105119462 B CN105119462 B CN 105119462B CN 201510660746 A CN201510660746 A CN 201510660746A CN 105119462 B CN105119462 B CN 105119462B
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- radiator fan
- linear actuator
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Abstract
The invention discloses a kind of electromagnetic linear actuators using fan cooling, it is mainly made of electromagnetic coil, coil rack, permanent magnet, inner yoke, outer yoke, radiator fan and temperature sensor；There are certain air gaps between permanent magnet nesting interior magnet yoke and outer yoke and between inner yoke, a stable magnetic field is formed in air gap, the electromagnetic coil and coil rack that can be moved up and down in the axial direction are located in air gap, temperature sensor can monitor the temperature of electromagnetic linear actuator mounted on the top of outer yoke side wall in real time, temperature signal is transferred in dsp controller, there are one radiator fan, radiator fans, and the unlatching and stopping of work are controlled by dsp controller for top dress.The configuration of the present invention is simple, manufacturing cost are low, easy to operate, have good temperature characterisitic and dynamic response performance, effectively increase the operating accuracy and service life of electromagnetic linear actuator.
Description
Technical field
The present invention relates to a kind of electromagnetic linear actuators, more particularly to one kind having good dynamic characteristics and operating temperature can
To control in a kind of a certain range of, the longer electromagnetic linear actuator using fan cooling of service life.
Technical background
Electric energy being converted directly into linear motion form by electromagnetic linear actuator as a kind of according to electromagnetic induction principle
The element of mechanical energy, it has many advantages, such as that system structure is simple, abrasion is smaller, noise is low, maintaining is convenient.Linear motion
Control has obtained relatively broad application and quickly grows in the correlative technology field such as mechanical industry, automation and industry, machine
The development of tool industry and automation proposes increasingly higher demands to the precision of linear motion control and dynamic response performance etc.,
Electromagnetic linear actuator makes it be widely used in modern industry increasingly because of its advantage possessed by linear motion control aspect
.
Currently, electromagnetic linear actuator used in the prior art is typically by electromagnetic coil, coil rack, permanent magnetism
Body, inner yoke, outer yoke and end cap are constituted, and are embedded in the permanent magnet in outer yoke and are generated a stable magnetic field in air gap,
Be passed through DC current in the electromagnetic coil in magnetic field, due to the effect of electromagnetic force can make electromagnetic coil and coil rack by
One electromagnetic push in the axial direction makes electromagnetic coil and coil rack move up and down in the axial direction in air gap, leads to
The direction of electromagnetic linear actuator motions, speed and stroke can be subject to by crossing control sense of current, size and conversion time
It adjusts.Because the universal excessively high, electromagnetic coil of process electric current conversion frequency and coil rack do the movement of high-speed cutting magnetic induction line thus
The excessively high operating accuracy for leading to actuator of operating temperature and service life for easily causing electromagnetic linear actuator reduce, thus electricity
Magnetic linear actuator also needs to further improve.
Invention content
The purpose of the present invention is to provide it is a kind of it is simple in structure, manufacturing cost is low, easy to operate, have good temperature special
The electromagnetic linear actuator that property and dynamic response performance, operating accuracy and service life effectively improve.
Realize that the technical solution of the object of the invention is：A kind of electromagnetic linear actuator using fan cooling, it is special
Sign is：It is mainly by electromagnetic coil, coil rack, permanent magnet, inner yoke, outer yoke, radiator fan and temperature sensor group
At；Permanent magnet is nested between interior magnet yoke and outer yoke and between inner yoke there are certain air gap, and one is formed in air gap
The magnetic field of a stabilization, the electromagnetic coil and coil rack that can be moved up and down in the axial direction are located in air gap, temperature sensor peace
Mounted in the top of outer yoke side wall, the temperature signal that temperature sensor measures imports dsp controller by conducting wire, and electromagnetic linear is held
There are one radiator fan, the rounded outer profiles of radiator fan to be equipped with boss, uniformly divide on circumference boss for the top dress of row device
Cloth eight screw holes, so that radiator fan is fixed on the top of outer yoke using screw, and the conducting wire of radiator fan is from boss edge
On notch in draw, radiator fan work unlatching and stop controlled by dsp controller.
The temperature sensor can monitor the temperature indirect reaction on electromagnetic linear actuator outer wall in it in real time
The data of collection are simultaneously conveyed to dsp controller by the operating temperature in portion, and dsp controller can send out instruction control radiator fan
To control the unlatching of radiator fan and be stopped, the radiator fan of rotation can accelerate electromagnetic linear for the opening and closing of power switch
Air circulation in actuator, and the heat generated in the electromagnetic linear actuator course of work is taken away, to control electromagnetic linear
The operating temperature of actuator is in certain range always.
By adopting the above-described technical solution, compared with prior art, the present invention its remarkable advantage is：1）It can be used for each
Executing agency in kind mechanical automation equipment, can ensure system high-speed, high-precision movement and drive control.In actuator
It is required that it is small, precision is high, fireballing occasion can be widely used；2）One added in electromagnetic linear actuator
Radiator fan can directly be bought by market, and installation method is simple, increase very little to cost, radiator fan can band when working
Extra heat is walked, control electromagnetic linear actuator is operated within the scope of a reasonable temperature, makes actuator steady operation, can
To ensure the operating accuracy of electromagnetic linear actuator and effectively improve its service life；3）Temperature sensor monitors electromagnetic linear
The operating temperature of actuator and the data feedback being collected into dsp controller, dsp controller can be controlled according to pre-set programs
The power switch of radiator fan is opened and closed to control its work, and control method is simple and practicable, at low cost, operability is high.
Description of the drawings
Fig. 1 is a kind of electromagnetic linear actuator structure schematic diagram using fan cooling of the present invention.
Fig. 2 is the structure chart of the radiator fan on a kind of electromagnetic linear actuator using fan cooling of the present invention.
Specific implementation mode
Present invention is further described in detail below in conjunction with the accompanying drawings.
In conjunction with Fig. 1, a kind of electromagnetic linear actuator using fan cooling of the invention, it is mainly by electromagnetic coil 1, line
Ring framework 2, permanent magnet 3, inner yoke 4, outer yoke 5, radiator fan 6 and temperature sensor 7 form；Including permanent magnet 3 is nested in
There are certain air gaps between yoke 4 and outer yoke 5 and between inner yoke 4, and a stable magnetic field is formed in air gap, can edge
The electromagnetic coil and coil rack 2 that axis direction moves up and down are located in air gap, and temperature sensor 7 is mounted on 5 side wall of outer yoke
Top, the temperature signal that temperature sensor 7 measures by conducting wire import dsp controller, electromagnetic linear actuator top dress
There are one radiator fan 6, the rounded outer profiles of radiator fan 6 are equipped with boss, and eight spiral shells are uniform-distribution on circumference boss
Nail hole makes radiator fan 6 be fixed on the top of outer yoke 5 using screw, and the conducting wire of radiator fan 6 is from the notch on boss edge
Middle extraction, the unlatching and stop being controlled by dsp controller that radiator fan 6 works, the exterior contour of radiator fan 6 is circle,
Diameter is equal with the outer diameter of outer yoke 5, and radiator fan 6 can ensure electromagnetic linear actuator always within the scope of certain temperature
Work.
The temperature sensor 7 can monitor the temperature indirect reaction on electromagnetic linear actuator outer wall in it in real time
The data of collection are simultaneously conveyed to dsp controller by the operating temperature in portion, and dsp controller can send out instruction control radiator fan 6
Power switch opening and closing to control the unlatching of radiator fan 6 and be stopped, the radiator fan 6 of rotation can accelerate electromagnetism
Air circulation in linear actuator, and the heat generated in the electromagnetic linear actuator course of work is taken away, to control electromagnetism
Linear actuator operating temperature is in certain range always.
Electromagnetic coil 1 is according to centainly around to being wrapped on coil rack 2, the center of circle of three adjacent circle electromagnetic coils is located at one
On three vertex of a equilateral triangle, the wire radius of electromagnetic coil 1 is equal to the half of this equilateral triangle edges length, electromagnetic wire
Circle 1 can increase the effective length of the conducting wire in magnetic field of electromagnetic coil 1 according to the arrangement of this canoe with effectively save space,
Electromagnetic linear actuator is allow to generate the electromagnetic force of bigger under same magnetic induction intensity.
Electromagnetic coil 1 and coil rack 2 be in the radial air gap between permanent magnet 3 and inner yoke 4, with permanent magnet 3 and interior
There are certain gap between yoke 4, it is passed through to electromagnetic coil 1 and will produce a size with electric current, directional correlation after electric current
Electromagnetic force, electromagnetic force pushes electromagnetic coil 1 and coil rack 2 to make movement up and down reciprocatingly in air gap, is passed through the electricity of electric current
The temperature of magnetic coil 1 can gradually rise, and electromagnetic coil 1 and coil rack 2 are made cutting magnetic induction line movement in air gap and also be will produce
A large amount of heat is simultaneously dispersed into air gap, and the temperature of electromagnetic linear actuator is made to increase.
In certain certain applications, electromagnetic linear actuator needs high actuating speed and high direction conversion frequency, such as makees
For engine spray device driving device when, since electromagnetic coil 1 does the high frequency conversion of high-speed motion and electric current in magnetic field
Heat is will produce, and can also be influenced by the heat given out in engine as engine spray device, electromagnetic linear is held
Row device operating temperature increases the deformation that the structure of device can be made to generate slightly, and the performance of permanent magnet 3 can be also affected to some extent
And then operating accuracy, operating characteristics and the service life of electromagnetic linear actuator are influenced, so, electromagnetic linear execution should be controlled
Within the scope of the operating temperature of device is in appropriate.
The temperature sensor 7 of electromagnetic linear actuator uses patch type temperature sensor, can be placed in outer yoke side wall
Top close to the place of radiator fan wire outlet, to facilitate the conducting wire of temperature sensor 7 together with the conducting wire of radiator fan 6
It connects into dsp controller.Temperature sensor 7 is located at the temperature that can be measured on 5 outer wall of outer yoke on electromagnetic linear actuator outer wall
Degree to which indirect reaction goes out the operating temperature inside electromagnetic linear actuator, and can be located at magnetic field to avoid temperature sensor 7
It is middle can affected by magnetic fields and cisco unity malfunction.
Fig. 2 shows the structure chart of the radiator fan 6 of electromagnetic linear actuator, radiator fan 6 is held mounted on electromagnetic linear
The exterior contour on the top of row device, radiator fan 6 is equipped with boss, has been uniformly distributed eight screw holes on boss, fastener passes through
Screw hole is fixed on radiator fan 6 on the top of coaxial outer yoke 5, is stayed there are one notch in the contour edge of radiator fan 6
The conducting wire of radiator fan 6 is drawn, notch is close to the top of temperature sensor 7 in order to so that two strands of conducting wires are connected into DSP controls together
The exterior contour diameter of device processed, radiator fan 6 is equal with the diameter of outer yoke 5, can make radiator fan 6 with outer yoke 5 more
Good is combined together, and the rotation of radiator fan 6 can accelerate the circulation of air to take away extra heat.
Radiator fan 6, temperature sensor 7 and dsp controller may be constructed a feedback regulation mechanism, temperature sensor 7
The temperature of electromagnetic linear actuator is monitored, and the data transfer of collection to dsp controller, dsp controller is according to temperature sensing
The signal that device 7 transmits sends out the current switching of instruction control radiator fan 6 after handling it, to control the work of radiator fan 6
It opens or stops, and then control the operating temperature of electromagnetic linear actuator.
A program is set to dsp controller, if the temperature signal that temperature sensor 7 transmits indicates that temperature is more than centainly
Temperature T1 when connection radiator fan 6 electric current make its start-up operation, taking away the heat in electromagnetic linear actuator keeps electromagnetism straight
The temperature of line actuator declines, if temperature signal indicates that temperature drops to T0（T0<T1）When disconnect radiator fan 6 electric current make
It is stopped, and operating temperature stops declining.
Temperature when radiator fan 6 starts and is stopped must be determined by the actual performance and application scenario of each component
（T0 and T1）.
The above is only a preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (2)
1. a kind of electromagnetic linear actuator using fan cooling, it is characterised in that：It is mainly by electromagnetic coil (1), coil bone
Frame (2), permanent magnet (3), inner yoke (4), outer yoke (5), radiator fan (6) and temperature sensor (7) composition；Permanent magnet (3)
It is nested between interior magnet yoke (4) and outer yoke (5) and between inner yoke (4) there are certain air gap, forms one in air gap
The magnetic field of a stabilization, the electromagnetic coil that can be moved up and down in the axial direction and coil rack (2) are located in air gap, temperature sensor
(7) it is mounted on the top of outer yoke (5) side wall, the temperature signal that temperature sensor (7) measures imports DSP controls by conducting wire
Device, for the top dress of electromagnetic linear actuator there are one radiator fan (6), the rounded outer profiles of radiator fan (6) are equipped with boss,
It is uniform-distribution with eight screw holes on circumference boss, so that radiator fan (6) is fixed on the tops of outer yoke (5) using screw,
The conducting wire of radiator fan (6) is drawn from the notch on boss edge, and the unlatching and stopping of radiator fan (6) work are controlled by DSP
Device control processed；
It the start-up operation of the radiator fan (6) and is controlled by the instruction that dsp controller is sent out at the time of be stopped, radiation air
Fan (6) is started to work when the operating temperature of electromagnetic linear actuator reaches T1 temperature, when operating temperature is reduced to T0 temperature
It is stopped, operating temperature therein meets：T0<T1；
Electromagnetic coil (1) is according to centainly around to being wrapped on coil rack (2), the center of circle of three adjacent circle electromagnetic coils is located at one
On three vertex of a equilateral triangle, the wire radius of electromagnetic coil (1) is equal to the half of this equilateral triangle edges length, electromagnetism
Coil (1) according to this canoe arrangement can with effectively save space, increase electromagnetic coil (1) in magnetic field conducting wire it is effective
Length so that electromagnetic linear actuator can generate the electromagnetic force of bigger under same magnetic induction intensity；
The temperature sensor (7) for monitoring electromagnetic linear actuator temperature uses patch type temperature sensor, is mounted on outer yoke (5)
Close to the position of radiator fan (6) extraction wire on side.
2. the electromagnetic linear actuator according to claim 1 using fan cooling, it is characterised in that：The radiator fan
(6) exterior contour is circle, and diameter is equal with the outer diameter of outer yoke (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510660746.XA CN105119462B (en) | 2015-10-15 | 2015-10-15 | A kind of electromagnetic linear actuator using fan cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510660746.XA CN105119462B (en) | 2015-10-15 | 2015-10-15 | A kind of electromagnetic linear actuator using fan cooling |
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| CN105119462A CN105119462A (en) | 2015-12-02 |
| CN105119462B true CN105119462B (en) | 2018-07-31 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1317443A (en) * | 2000-04-07 | 2001-10-17 | 未来产业株式会社 | Cooling controller of gantry crane and its control method |
| DE10192950D2 (en) * | 2000-07-22 | 2003-07-10 | Bosch Gmbh Robert | Method for optimally controlling the cooling capacity of an engine of a motor vehicle |
| CN101127474A (en) * | 2007-09-19 | 2008-02-20 | 南京理工大学 | High power density motive loop permanent magnetic linear electromotor |
| CN103034261A (en) * | 2012-12-07 | 2013-04-10 | 无锡风电设计研究院有限公司 | Permanent magnet generator temperature control system |
| CN205039678U (en) * | 2015-10-15 | 2016-02-17 | 山东理工大学 | Use cooling fan's electromagnetism straight line executor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007221908A (en) * | 2006-02-16 | 2007-08-30 | Yaskawa Electric Corp | Motor controlling device |
| JP2013046420A (en) * | 2011-08-20 | 2013-03-04 | Nippon Densan Corp | Winding coil and stator core with winding coil |
-
2015
- 2015-10-15 CN CN201510660746.XA patent/CN105119462B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1317443A (en) * | 2000-04-07 | 2001-10-17 | 未来产业株式会社 | Cooling controller of gantry crane and its control method |
| DE10192950D2 (en) * | 2000-07-22 | 2003-07-10 | Bosch Gmbh Robert | Method for optimally controlling the cooling capacity of an engine of a motor vehicle |
| CN101127474A (en) * | 2007-09-19 | 2008-02-20 | 南京理工大学 | High power density motive loop permanent magnetic linear electromotor |
| CN103034261A (en) * | 2012-12-07 | 2013-04-10 | 无锡风电设计研究院有限公司 | Permanent magnet generator temperature control system |
| CN205039678U (en) * | 2015-10-15 | 2016-02-17 | 山东理工大学 | Use cooling fan's electromagnetism straight line executor |
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