CN103617868B

CN103617868B - A kind of magnetic circuit component of magnetic modulation voltage sensor

Info

Publication number: CN103617868B
Application number: CN201310607366.0A
Authority: CN
Inventors: 朱胜平; 顾忠辉; 马锡敏; 刘斌; 任齐赟; 郑民
Original assignee: Ningbo CSR Times Transducer Technology Co Ltd
Current assignee: Ningbo CRRC Times Transducer Technology Co Ltd
Priority date: 2013-11-27
Filing date: 2013-11-27
Publication date: 2017-07-28
Anticipated expiration: 2033-11-27
Also published as: CN103617868A

Abstract

The invention discloses a kind of magnetic circuit component of magnetic modulation voltage sensor, including annular coil framework, primary coil, two secondary windings, two high conducting magnet cores of identical annular, two iron cores are fixed in coil rack in up and down alignment, one secondary winding of formula coiling is respectively screw outside each iron core, the direction of winding of two secondary windings is opposite, the terminals stretching coil rack of secondary winding, coil rack external spiral formula coiling primary coil, primary coil and secondary winding are enamel-covered wire.The magnetic circuit component of the present invention uses monoblock type skeleton, is easy to assemble with other parts；Pressure-resistant performance between primary coil and secondary winding is high.

Description

A kind of magnetic circuit component of magnetic modulation voltage sensor

Technical field

The present invention relates to the magnetic circuit part of the magnetic circuit component that iron core, coil are constituted, more particularly to magnetic modulation type voltage transducer Part.

Background technology

Magnetic modulation voltage sensor is a voltage sensor that operation principle is modulated using magnetic, by the annular ferronickel of high magnetic conduction Alloy coil and electronic circuit are constituted, using the alternating saturated characteristic under high conducting magnet core internally square-wave voltage incentive action, The current signal that primary side quickly can be measured into voltage generation makes secondary winding by waiting ampere-turn principle fast modulation to secondary winding Output current can accurately follow the change of original edge voltage signal.Because the measurement accuracy of magnetic modulation type voltage transducer is high, line Property degree is good, small volume, low in energy consumption, has the response time being exceedingly fast to measured signal, it is in AC Drive especially subway engineering car And have extensive purposes in the converter system of AC drive locomotive.

Magnetic circuit component in existing magnetic modulation type voltage transducer, primary structure is：The primary coil of magnetic circuit component, secondary side Coil is wound on respective skeleton respectively, then is installed outer cover additional and fixed.The global shape structure of magnetic circuit component is more complicated, is difficult Coordinate with other parts, coiling is former, secondary winding when, it is necessary to special coiling instrument, it is and pressure-resistant between former, secondary winding Property is relatively low.

The content of the invention

The technical problems to be solved by the invention are to overcome the above-mentioned not enough of prior art and provide a kind of magnetic modulation voltage The magnetic circuit component of sensor, using monoblock type skeleton, is easy to assemble with other parts；Between primary coil and secondary winding Pressure-resistant performance is high.

The present invention the used technical scheme that solves the above problems is：The magnetic circuit component of magnetic modulation voltage sensor, including Annular coil framework, primary coil, two secondary windings, two high conducting magnet cores of identical annular, two iron core consistencies from top to bottom Ground is fixed in coil rack, and one secondary winding of formula coiling, the coiling side of two secondary windings are respectively screw outside each iron core To on the contrary, secondary winding terminals stretch out coil rack, coil rack external spiral formula coiling primary coil, primary coil and time Sideline circle is enamel-covered wire.

The secondary winding of coiling outside pad, an iron core and iron core is set to be located above pad in the coil rack, separately One iron core and its secondary winding of coiling are located at below pad.

Sheath, the outer coiling secondary winding of sheath are cased with outside each iron core respectively.

Filling casting glue in the coil rack.

Wire lead slot is provided with the annular coil framework, the secondary winding terminals for stretching out coil rack are located at wire lead slot It is interior.

The bottom surface of the annular coil framework sets multiple muscle in array distribution.

The height of the muscle is higher than the coiling thickness of primary coil.

The junction of the coil rack and muscle is by chamfered transition.

The advantage of the invention is that：1st, primary coil is wound on outside coil rack, and secondary winding is wound on skeletal internal Outside iron core, former, secondary winding is isolated by coil rack, so that the pressure-resistant performance between former, secondary winding is high.2nd, coil bone The bottom surface of frame sets multiple muscle in display distribution, and the winding position of primary coil is limited using muscle, can be according to magnetic circuit component Use requirement, primary coil point multistage is wound on coil rack.3rd, wire lead slot etc., convenient sideline are provided with coil rack Circle stretches out the positioning of the terminals of coil rack, and does not influence coil rack to be assembled with other parts.4th, set in coil rack Pad, filling casting glue are put, two secondary windings will be isolated up and down, it is to avoid be interfered.

Brief description of the drawings

Fig. 1 is the overall structure diagram of magnetic circuit component.

Fig. 2 is the coiling schematic diagram of iron core, secondary winding.

Fig. 3 is the partial sectional view of magnetic circuit component.

Fig. 4 is the structure sectional view in coil rack.

Fig. 5 is the structural representation of coil rack.

Embodiment

Below in conjunction with the accompanying drawings, the present invention is further described for embodiment.

Magnetic circuit component as shown in Figure 1, Figure 3, for magnetic modulation voltage sensor, the bottom surface of annular coil framework 40 is carried The muscle 41 of three array distributions of protrusion, to access location and spacing, the primary side of outlet position during for 20 coiling of primary coil Coil 20 is spirally wound on outside coil rack 40, due to the spacing barrier effect of muscle 41, and primary coil 20 is wound on two muscle Between 41.In order to increase resistance to pressure, primary coil 20 can be divided into two sections or multistage is wound on outside coil rack 40.In such as Fig. 1, One two sections of primary coil 20 point is wound on outside coil rack 40.

Two secondary windings are respectively the first secondary winding 31, the second secondary winding 32, and four of two secondary windings connect Line end stretches out coil rack 40.So that having certain space between primary coil and secondary winding, so as to improve between the two Stress levels.

Primary coil 20, the first secondary winding 31, the second secondary winding 32 are enamel-covered wire.

In order to not influence coil rack 40 and other parts to assemble, wire lead slot 42 is provided with coil rack 40, for the first time The terminals that the 31, second secondary winding 32 is enclosed in sideline are located in wire lead slot 42.Wire lead slot position 42 is in the side wall of coil rack 40 The flute profile of depression, as shown in Figure 5.

The internal structure of coil rack 40 as shown in Figure 2, Figure 4 shows, the high conducting magnet cores of two shape size identicals annular, on Under be fixed in alignment in coil rack 40, be the first iron core 11 and the second iron core 12 respectively, the first secondary winding 31 is spiral It is wound on the first iron core 11, the second secondary winding 32 is spirally wound on the second iron core 12, the coiling of two secondary windings In the opposite direction.

For convenience of coiling, and iron core is avoided to damage enamel-covered wire, the first iron core 11 is cased with the first sheath 61 outside, for the first time Sideline is enclosed 31 spiral shapes and is wound on outside the first sheath 61.The second sheath 62, the spiral shell of the second secondary winding 32 are cased with outside second iron core 12 Rotation shape is wound on outside the second sheath 62.Certainly, the coiling of two secondary windings is in opposite direction.

It is placed in around two secondary windings made in annular coil framework 40, and the first secondary winding 31 and the second secondary side Kept apart between coil 32 by pad 50, the first iron core 11, the first sheath 61, the first secondary winding 31 are located at the upper of pad 50 Side, the second iron core 12, the second sheath 61, the second secondary winding 32 are located at the lower section of pad 50.

Filling casting glue 70 in coil rack 40, strengthens the fixing intensity of the magnetic circuit component in coil rack 40.

The height of muscle 41 is designed to the coiling thickness of slightly above primary coil 20, can using muscle 41 as magnetic circuit component branch Frame, enables magnetic circuit component to place steadily.The junction design chamfering structure of muscle 41 and coil rack 40, chamfered transition can be prevented Scratch the enamel-covered wire of primary coil 20.

Claims

1. a kind of magnetic circuit component of magnetic modulation voltage sensor, it is characterised in that：The magnetic circuit component include annular coil framework, Primary coil, two secondary windings, two high conducting magnet cores of identical annular, two iron cores are fixed on coil bone in up and down alignment In frame, one secondary winding of formula coiling is respectively screw outside each iron core, the direction of winding of two secondary windings is on the contrary, secondary winding Terminals stretch out coil rack, coil rack external spiral formula coiling primary coil, primary coil and secondary winding are enamel-cover Line.

2. the magnetic circuit component of magnetic modulation voltage sensor according to claim 1, it is characterised in that：Set in coil rack The secondary winding of the outer coiling of pad, an iron core and iron core is located above pad, the secondary winding of another iron core and its coiling Below pad.

3. the magnetic circuit component of magnetic modulation voltage sensor according to claim 1 or 2, it is characterised in that：Outside each iron core Sheath, the outer coiling secondary winding of sheath are cased with respectively.

4. the magnetic circuit component of magnetic modulation voltage sensor according to claim 1 or 2, it is characterised in that：In coil rack Fill casting glue.

5. the magnetic circuit component of magnetic modulation voltage sensor according to claim 1, it is characterised in that：On annular coil framework Wire lead slot is provided with, the secondary winding terminals for stretching out coil rack are located in wire lead slot.

6. the magnetic circuit component of magnetic modulation voltage sensor according to claim 1, it is characterised in that：The loop coil bone The bottom surface of frame sets multiple muscle in array distribution.

7. the magnetic circuit component of magnetic modulation voltage sensor according to claim 6, it is characterised in that：The height of the muscle is high In the coiling thickness of primary coil.

8. the magnetic circuit component of the magnetic modulation voltage sensor according to claim 6 or 7, it is characterised in that：The coil bone The junction of frame and muscle is by chamfered transition.