CN103137287B - A kind of control method of variable inductor and inductance value - Google Patents
A kind of control method of variable inductor and inductance value Download PDFInfo
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- CN103137287B CN103137287B CN201310084765.3A CN201310084765A CN103137287B CN 103137287 B CN103137287 B CN 103137287B CN 201310084765 A CN201310084765 A CN 201310084765A CN 103137287 B CN103137287 B CN 103137287B
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- clamping plate
- joint pin
- yoke
- variable inductor
- air core
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Abstract
The invention discloses the control method of a kind of variable inductor and inductance value, including air core coil (3) and the pair of magnetic yoke (4) that coil can be inserted freely into respectively from air core coil two ends, also include fixing the first clamping plate (2) connecting a yoke, fixing the second clamping plate (6) connecting another yoke, the joint pin (5) that first clamping plate and the second clamping plate are made by nonmagnetic substance is mutually permanently connected, and joint pin is axially hollow and is built-in with heater element (1).By arranging the distance of the first clamping plate and the second clamping plate thus setting the gap that two yokes are held in opposite directions, obtain the initial inductance amount of variable inductor；Heating joint pin by heater element, making joint pin generation length change, thus regulating yoke gap so that variable inductor inductance value changes.This programme has simple in construction, technology maturation, reliability is high, cost is low, be capable of the advantages such as remote continuous automatically controlled adjustment simultaneously.
Description
Technical field
The present invention relates to variable inductor, be specifically related to the control method of a kind of variable inductor and inductance value.
Background technology
Existing common variable inductor is usually the permeability by the regulating winding number of turn and adjustment inductance magnetic conductive loop to change inductance value.The mode limitation of the regulating winding number of turn is very big, and the mode of air gap amount size in inductance magnetic conductive loop that regulates is widely used.Air gap regulative mode generally has mechanical adjustment and circuit to regulate two kinds, and mechanical adjustment is that manually mechanism or automechanism adjust yoke position (a kind of high-power adjustable inductor as disclosed by Chinese patent CN201110130871.1)；Circuit adjustment produces magnetic field one group controlled mainly by circuit and regulates (a kind of controllable impedance as disclosed by Chinese patent CN201210144165, the numerical control variable inductance disclosed by CN201010563886).Man-operated mechanism regulative mode can not realize automatization, and automechanism regulative mode then structure is complicated, cost is high, volume weight is big, degree of regulation is general.Circuit regulative mode is more applicable for AC inductance, and for the application in DC circuit owing to adding dc magnetization, making the working range of inductance magnetic circuit reduce, the electromagnetic performance of magnetic core can not make full use of, inefficient, cause inductance volume increase and also complex circuit, cost are high.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, have employed the technical scheme of a kind of uniqueness, utilize the effect of expanding with heat and contract with cold of solid material to regulate air gap or the position of yoke, reach to regulate the effect of inductor current amount.This programme has simple in construction, technology maturation, reliability is high, cost is low, be capable of the advantages such as remote continuous automatically controlled adjustment simultaneously.The present invention is realized by following proposal:
A kind of control method of variable inductor inductance value, this variable inductor includes air core coil, can be inserted freely into the pair of magnetic yoke of coil respectively from air core coil two ends, fixing connect the first clamping plate of a yoke, fixing connect the second clamping plate of another yoke, be respectively fixedly connected with the joint pin that the nonmagnetic substance of the first clamping plate and the second clamping plate is made, and described control method comprises the following steps:
(1) by arranging the distance of the first clamping plate and the second clamping plate thus setting the gap that two yokes are held in opposite directions, the initial inductance amount of variable inductor is obtained.
(2) heating joint pin by heater element, making joint pin generation length change, thus regulating yoke gap so that variable inductor inductance value changes.
Realize the device of above-mentioned control method: a kind of variable inductor, including air core coil and the pair of magnetic yoke that coil can be inserted freely into respectively from air core coil two ends, also include fixing the first clamping plate connecting a yoke, fixing the second clamping plate connecting another yoke, the joint pin that first clamping plate and the second clamping plate are made by nonmagnetic substance is mutually permanently connected, and joint pin is axially hollow and is built-in with heater element.
Described yoke is column type, horseshoe type or mountain font high permeability yoke.
Described joint pin is preferably made up of nylon or politef, and its outer surface can be coated with the rigid body that nonmagnetic substance is made, in order to improve joint pin intensity and to increase its axial temperature coefficient of expansion.
Described joint pin quantity is preferably provided with two, it is also possible to arrange one or more.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of variable inductor.
In Fig. 1:
1. heater element；2. the first clamping plate；3. air core coil；4. yoke；5. joint pin；6. the second clamping plate.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
A kind of variable inductor, including air core coil and the pair of magnetic yoke that coil can be inserted freely into respectively from air core coil two ends, also include fixing the first clamping plate connecting a yoke, fixing the second clamping plate connecting another yoke, the joint pin that first clamping plate and the second clamping plate are made by nonmagnetic substance is mutually permanently connected, and joint pin is axially hollow and is built-in with heater element.
Yoke selects mountain font high permeability yoke.
First clamping plate and the second clamping plate are all made of plastics, and be arranged in parallel.
Heater element selects electric heating device.
Joint pin selects nylon material to make, and arranges two.
As required, by arranging the distance of the first clamping plate and the second clamping plate thus setting the gap that two yokes are held in opposite directions, the initial inductance amount of variable inductor is obtained；When needing adjusting inductance, controlling the electric heating device at the axially hollow position of joint pin by controlling device, joint pin expanded by heating, its length changes, thus regulating yoke gap so that variable inductor inductance value changes.When inductance value reaches requirement, keep joint pin temperature constant state, thus stablizing the inductance value of inducer.
Claims (6)
1. a variable inductor, including air core coil and the pair of magnetic yoke that coil can be inserted freely into respectively from air core coil two ends, it is characterized in that: also include fixing the first clamping plate connecting a yoke, fixing the second clamping plate connecting another yoke, the joint pin that first clamping plate and the second clamping plate are made by nonmagnetic substance is mutually permanently connected, joint pin is at least provided with two, joint pin is axially hollow and is built-in with electric heating device, joint pin expanded by heating, its length changes, thus regulating yoke gap.
2. variable inductor as claimed in claim 1, it is characterised in that described yoke is column type, horseshoe type or mountain font high permeability yoke.
3. variable inductor as claimed in claim 1, it is characterised in that the first described clamping plate and the second clamping plate are all made of plastics, and be arranged in parallel.
4. variable inductor as claimed in claim 1, it is characterised in that described joint pin is made up of nylon or politef.
5. the variable inductor as according to any one of claim 1-4, it is characterised in that described joint pin outer surface has wrapped up the rigid body that nonmagnetic substance is made.
6. the control method of a variable inductor inductance value, this variable inductor includes air core coil, can be inserted freely into the pair of magnetic yoke of coil respectively from air core coil two ends, fixing connect the first clamping plate of a yoke, fixing connect the second clamping plate of another yoke, be respectively fixedly connected with the joint pin that the nonmagnetic substance of the first clamping plate and the second clamping plate is made, joint pin is axially hollow and is built-in with electric heating device, and described control method comprises the following steps:
(1) by arranging the distance of the first clamping plate and the second clamping plate thus setting the gap that two yokes are held in opposite directions, the initial inductance amount of variable inductor is obtained；
(2) heating joint pin by electric heating device, making joint pin generation length change, thus regulating yoke gap so that variable inductor inductance value changes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310084765.3A CN103137287B (en) | 2013-03-18 | 2013-03-18 | A kind of control method of variable inductor and inductance value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310084765.3A CN103137287B (en) | 2013-03-18 | 2013-03-18 | A kind of control method of variable inductor and inductance value |
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| CN103137287A CN103137287A (en) | 2013-06-05 |
| CN103137287B true CN103137287B (en) | 2016-07-06 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109036825B (en) * | 2018-07-20 | 2022-01-14 | 中国航发哈尔滨东安发动机有限公司 | Transformer inductance adjusting method of aviation ignition device |
| CN112331467B (en) * | 2020-11-23 | 2022-08-16 | 广东电网有限责任公司广州供电局 | Method and device for reactor seismic design |
| CN115547617B (en) * | 2022-09-23 | 2023-10-27 | 江苏东方四通科技股份有限公司 | Adjustable inductor, inductance adjusting method and switching power supply |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2327057Y (en) * | 1997-11-28 | 1999-06-30 | 沈阳变压器有限责任公司 | Variable reactor |
| CN2754190Y (en) * | 2004-10-06 | 2006-01-25 | 傅光祖 | Copper-tube-coil circulating water internal cooled power filter reactor |
| CN102589744A (en) * | 2012-02-20 | 2012-07-18 | 李向阳 | Inductance type temperature sensor |
| CN202758701U (en) * | 2012-08-27 | 2013-02-27 | 绵阳市涪城区力田磁电科技有限公司 | Novel water-cooled electromagnet |
| CN203165616U (en) * | 2013-03-18 | 2013-08-28 | 蒋科明 | Adjustable inductor |
-
2013
- 2013-03-18 CN CN201310084765.3A patent/CN103137287B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2327057Y (en) * | 1997-11-28 | 1999-06-30 | 沈阳变压器有限责任公司 | Variable reactor |
| CN2754190Y (en) * | 2004-10-06 | 2006-01-25 | 傅光祖 | Copper-tube-coil circulating water internal cooled power filter reactor |
| CN102589744A (en) * | 2012-02-20 | 2012-07-18 | 李向阳 | Inductance type temperature sensor |
| CN202758701U (en) * | 2012-08-27 | 2013-02-27 | 绵阳市涪城区力田磁电科技有限公司 | Novel water-cooled electromagnet |
| CN203165616U (en) * | 2013-03-18 | 2013-08-28 | 蒋科明 | Adjustable inductor |
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| CN103137287A (en) | 2013-06-05 |
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