CN2694445Y - Demagnetization apparatus containing a demagnetization oscillating circuit - Google Patents
Demagnetization apparatus containing a demagnetization oscillating circuit Download PDFInfo
- Publication number
- CN2694445Y CN2694445Y CN 200420018510 CN200420018510U CN2694445Y CN 2694445 Y CN2694445 Y CN 2694445Y CN 200420018510 CN200420018510 CN 200420018510 CN 200420018510 U CN200420018510 U CN 200420018510U CN 2694445 Y CN2694445 Y CN 2694445Y
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- coil
- demagnetization
- solenoid
- capacitor
- oscillating circuit
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Abstract
The demagnetization apparatus containing a demagnetization oscillating circuit of the utility model relates to a demagnetization apparatus containing a demagnetization oscillating circuit, comprising a pulse type magnetizing power (1), a solenoid (2), and a capacitor (3). The solenoid (2) is a mutual inductant solenoid which is coiled by a coil (2-1) and a coil (2-2). The first ends of the coil (2-2) are respectively connected with the both ends of the capacitor (3), and the first ends of the coil (2-1) are respectively connected with the two output ends of the pulse type magnetizing power (1). The utility model can obtain a demagnetized filed with enough wave number and reduction rate to completely demagnetize permanent magnet. The utility model has the advantage of simple structure, as well as the utility model is convenient in use, and easy to maintain.
Description
Technical field: the utility model relates to a kind of demagnetizer that contains the oscillating circuit that demagnetizes.
Background technology: existing to fill the demagnetization solenoid coil be to be made of an inductance coil.The electric current that magnetizes by being provided by the power supply that magnetizes when being used to magnetize produces magnetic field permanent magnetic material is magnetized in solenoid coil; Direction by Control current when being used to demagnetize produces positive and negative alternation in solenoid coil demagnetizing field demagnetizes to permanent magnetic material.Filling the demagnetization power supply overwhelming majority is to utilize the discharge of composite electron switch control capacitance, produces impulse magnetic field and form pulse high current in coil.During demagnetization, by electronic switch Control current direction, positive and negative alternate and reduce pulse current gradually and obtain the demagnetizing field of alternation one by one.This process is very long and can not make the magnetic state of permanent magnetic material be returned to zero fully, and is special more undesirable for the rare earth permanent-magnetic material of all kinds of high-coercive forces.Utilize the composite electron switch also can obtain decay magnetic field by forming RLC decay concussion by the resistance R in storage capacitor C, magnetize solenoid coil L and the loop in the capacitor discharge loop, but because storage capacitor is generally all very big, be difficult to freely switch the desirable RLC of formation in the discharge process and freely shake parameter, can't obtain the enough wave numbers and the demagnetizing field of lapse rate.
The utility model content: the purpose of this utility model provides a kind of demagnetizer that contains the oscillating circuit that demagnetizes.The utility model can solve the existing shortcoming that can not obtain the demagnetizing field of enough wave numbers and lapse rate when the demagnetization solenoid demagnetizes of filling.It comprises the pulsed power supply 1 that magnetizes, and it also comprises solenoid 2, capacitor 3; Solenoid 2 is the mutual inductance solenoids that formed by coil 2-1, the common coiling of coil 2-2; The first and last end of coil 2-2 connects the two ends of capacitor 3 respectively, and the first and last end of coil 2-1 connects magnetize two outputs of power supply 1 of pulsed respectively.Operation principle: when demagnetization the front end pulsed power supply 1 that magnetizes deliver to momentary pulse electric current among the coil 2-1 in the solenoid 2, this pulse current passes through coil 2-1 inductive coupling in the loop of being made up of coil 2-2, capacitor 3 simultaneously, produce a decay concussion in this loop because of the existence that capacitor 3 is arranged makes, and in coil 2-2, produce a concussion decay demagnetizing field.The utility model can obtain the enough wave numbers and the demagnetizing field of lapse rate, and permanent magnet is demagnetized fully, its simple in structure, easy to use, easy care.
Description of drawings: Fig. 1 is an electrical block diagram of the present utility model, and Fig. 2 is the electrical block diagram of embodiment two.
Embodiment one: in conjunction with Fig. 1 present embodiment is described, it is made up of magnetize power supply 1, solenoid 2, capacitor 3 of pulsed; Solenoid 2 is the mutual inductance solenoids that formed by coil 2-1, the common coiling of coil 2-2; The first and last end of coil 2-2 connects the two ends of capacitor 3 respectively, and the first and last end of coil 2-1 connects magnetize two outputs of power supply 1 of pulsed respectively.Present embodiment makes the demagnetization workpiece material of putting into mutual inductance solenoid coil 2 be able to desirable demagnetization.
Embodiment two: in conjunction with Fig. 2 present embodiment is described, the difference of present embodiment and embodiment one is that increasing has outside magnetism-filling base 4; The end of one end connecting coil 2-2 of outside magnetism-filling base 4, the other end of outside magnetism-filling base 4 connects an end of capacitor 3, the other end of the other end connecting coil 2-2 of capacitor 3; Other composition is identical with embodiment one with annexation.Present embodiment can be carried out demagnetization work to the baroque workpiece of external form by outside magnetism-filling base 4.Outside magnetism-filling base 4 can be the magnetism-filling base that comprises the various forms structure of multipole magnetization seat.
Claims (2)
1, the demagnetizer that contains the oscillating circuit that demagnetizes, it comprises the pulsed power supply (1) that magnetizes, and it is characterized in that it also comprises solenoid (2), capacitor (3); Solenoid (2) is the mutual inductance solenoid that is formed by coil (2-1), the common coiling of coil (2-2); The first and last end of coil (2-2) connects the two ends of capacitor (3) respectively, and the first and last end of coil (2-1) connects magnetize two outputs of power supply (1) of pulsed respectively.
2, the demagnetizer that contains the oscillating circuit that demagnetizes according to claim 1 is characterized in that its increase has outside magnetism-filling base (4); One end of one end connecting coil (2-2) of outside magnetism-filling base (4), the other end of outside magnetism-filling base (4) connects an end of capacitor (3), the other end of the other end connecting coil (2-2) of capacitor (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420018510 CN2694445Y (en) | 2004-02-26 | 2004-02-26 | Demagnetization apparatus containing a demagnetization oscillating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420018510 CN2694445Y (en) | 2004-02-26 | 2004-02-26 | Demagnetization apparatus containing a demagnetization oscillating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2694445Y true CN2694445Y (en) | 2005-04-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420018510 Expired - Lifetime CN2694445Y (en) | 2004-02-26 | 2004-02-26 | Demagnetization apparatus containing a demagnetization oscillating circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2694445Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100369166C (en) * | 2005-03-09 | 2008-02-13 | 李志平 | Convergent oscillation type demagnetization device |
| CN103456457A (en) * | 2013-08-20 | 2013-12-18 | 江苏科技大学 | Demagnetizing method of high-strength steel narrow-gap welding groove |
-
2004
- 2004-02-26 CN CN 200420018510 patent/CN2694445Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100369166C (en) * | 2005-03-09 | 2008-02-13 | 李志平 | Convergent oscillation type demagnetization device |
| CN103456457A (en) * | 2013-08-20 | 2013-12-18 | 江苏科技大学 | Demagnetizing method of high-strength steel narrow-gap welding groove |
| CN103456457B (en) * | 2013-08-20 | 2015-10-28 | 江苏科技大学 | High-strength steel narrow gap welding groove demagnetizing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080213 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |