CN102522194A

CN102522194A - Ladder winding method for transformer type sensor coil

Info

Publication number: CN102522194A
Application number: CN2011104116520A
Authority: CN
Inventors: 耿鹏利; 刘增明; 王勃
Original assignee: Shaanxi Baocheng Aviation Instrument Co Ltd
Current assignee: Shaanxi Baocheng Aviation Instrument Co Ltd
Priority date: 2011-12-12
Filing date: 2011-12-12
Publication date: 2012-06-27
Anticipated expiration: 2031-12-12
Also published as: CN102522194B

Abstract

The invention provides a ladder winding method for a transformer type sensor coil. The ladder winding method comprises the following steps of: wrapping the outer surface of a framework winding region for two circles by using non-alkali glass fiber cloth dipped with insulating varnish; then drying; flatly winding an enamel round copper wire at the framework winding region, and brushing the insulating varnish once when one layer of the enamel round copper wire is wound; after the layers of the specified number are flatly wound, continuously winding the enamel round copper wire in a specified region according to requirements, and brushing the insulating varnish once when one layer of the enamel round copper wire is wound; after the winding is completed, wrapping the coil for two circles by using a polytetrafluoroethylene film; then wrapping the coil for two circles by using the non-alkali glass fiber cloth; then binding by using cotton threads; and finally drying. After a sensor is assembled by using the coil wound by the invention, the sensor is mounted on a spout afterburner fuel regulator and is used for completing test run and check test run together with an engine, and special use requirements of the engine can be completely satisfied.

Description

The ladder winding method of transformer type sensor coil

Technical field

The present invention relates to the transformer type sensor technical field, be specifically related to a kind of ladder winding method of transformer type sensor coil.

Background technology

Transformer type sensor is mainly used in displacement measurement; Its operation principle is made up of two or more bands inductance coil unshakable in one's determination; Coupling energy is with relatively moving and change between armature or two coils between the primary and secondary coil, can be measured displacement conversion that the mutual inductance of transducer changes, when the elementary winding of the voltage drive with appropriate frequency; The output voltage of secondary coil will change with the change of mutual inductance, thereby the measured position transfer is changed to voltage output.Certain molded lines displacement transducer belongs to transformer type sensor; For certain type aero-engine supporting; Be contained on spout and the Reheat Fuel Control Unit, in π t adjustment process, detect the mobile of π t servo piston and send displacement conversion to limiting governor for the corresponding signal of telecommunication, it is non-linear in adjustment process, to require transducer in the working region, to be output as; Make the development difficulty of this transducer increase greatly, therefore be necessary to improve.

Summary of the invention

The technical problem that the present invention solves: a kind of ladder winding method of transformer type sensor coil is provided, satisfies the nonlinearity requirement that displacement transducer is exported in the working region.

The technical scheme that the present invention adopts: the ladder winding method of transformer type sensor coil comprises the steps:

The alkali-free glass fiber cloth that 1) will soak insulating varnish is wrapped in the overseas surface of winding region of skeleton;

2) will wrap up good skeleton and put into drying box, be warming up to 200 ℃, and be incubated after 2 hours and take out;

3) flat in dried skeleton coiling zone around enamel insulated round copper wire, every coiling one deck, brushing one deck insulating varnish on enamel insulated round copper wire, until the number of plies that parallel winded goes out to stipulate, coiling goes out primary coil and secondary coil respectively;

4) at secondary coil near outprimary parallel winded enamel insulated round copper wire once more, every coiling one deck, brushing primary insulation lacquer goes out ladder until parallel winded on enamel insulated round copper wire;

5) polytetrafluoroethylene film is wrapped on the good coil of coiling, said polytetrafluoroethylene film outer surface wraps up alkali-free glass fiber cloth again and uses the refractory wool line tying;

6) coil that will tie up is put into drying box, is warming up to 400 ℃, is incubated 4 hours, guarantees the finish-drying of coil.

Further, the said skeleton regional outer surface that winds the line wraps up two-layer alkali-free glass fiber cloth.

In the above-mentioned steps 5, said coil outer surface wraps up two-layer polytetrafluoroethylene film, and said polytetrafluoroethylene film outer surface wraps up two-layer alkali-free glass fiber cloth again.

Further, said insulating varnish is varnish.

The present invention compared with prior art, the coil that adopts the ladder winding method to make is installed on the spout Reheat Fuel Control Unit after being assembled into transducer, has accomplished test run, check test with engine, can satisfy the special instructions for use of engine fully.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Embodiment

Below in conjunction with accompanying drawing 1 a kind of embodiment of the present invention is described.

The ladder winding method of transformer type sensor coil comprises the steps:

The alkali-free glass fiber cloth 2 that 1) will soak insulating varnish is wrapped in the overseas surface of winding region of skeleton 1, and the two-layer alkali-free glass fiber cloth 2 of said skeleton 1 winding region overseas surface parcel improves the insulation property of skeleton 1.

2) will wrap up good skeleton 1 and put into drying box, be warming up to 200 ℃, and be incubated after 2 hours and take out;

3) flat in dried skeleton 1 coiling zone around enamel insulated round copper wire 4, every coiling one deck, brushing one deck insulating varnish on enamel insulated round copper wire 4, until the number of plies that parallel winded goes out to stipulate, coiling goes out primary coil 5 and secondary coil 6 respectively;

4) at secondary coil 6 near primary coil 5 ends parallel winded enamel insulated round copper wire 4 once more, every coiling one deck, brushing primary insulation varnish goes out ladder 7 until parallel winded on enamel insulated round copper wire 4;

5) polytetrafluoroethylene film 3 is wrapped on the good coil of coiling, promptly said coil outer surface wraps up two-layer polytetrafluoroethylene film 3, and said polytetrafluoroethylene film 3 outer surfaces wrap up two-layer alkali-free glass fiber cloth 2 again and use the refractory wool line tying;

Two coils are respectively primary coil 5 and secondary coil 6 among Fig. 1, and wherein secondary coil 6 adopts the ladder winding methods to make, and this molded lines displacement transducer the key technical indexes requires: 1. measuring range 0～10mm; 2. in the working region; Secondary coil 6 output voltage variable quantities and displacement ratio are non-linear; Wherein the output voltage of three of secondary coil 6 measurement points (6mm measurement point, 7mm measurement point, 8mm measurement point, promptly ladder 7 left sides are near that end of primary coil 5) is higher than the output voltage of other measurement point.

The foregoing description is preferred embodiment of the present invention, is not to be used for limiting practical range of the present invention, so all equivalences of being done with the said content of claim of the present invention change, all should be included within the claim scope of the present invention.

Claims

1. the ladder winding method of transformer type sensor coil is characterized in that comprising the steps:

The alkali-free glass fiber cloth (2) that 1) will soak insulating varnish is wrapped in the overseas surface of winding region of skeleton (1);

2) will wrap up good skeleton (1) and put into drying box, be warming up to 200 ℃, and be incubated after 2 hours and take out;

3) flat around enamel insulated round copper wire (4) in dried skeleton (1) coiling zone, every coiling one deck is gone up brushing one deck insulating varnish at enamel insulated round copper wire (4), and until the number of plies that parallel winded goes out to stipulate, coiling goes out primary coil (5) and secondary coil (6) respectively;

4) hold once more parallel winded enamel insulated round copper wire (4) at secondary coil (6) near primary coil (5), every coiling one deck is gone up brushing primary insulation lacquer at enamel insulated round copper wire (4), goes out ladder (7) until parallel winded;

5) polytetrafluoroethylene film (3) is wrapped on the good coil of coiling, said polytetrafluoroethylene film (3) outer surface wraps up alkali-free glass fiber cloth (2) again and uses the refractory wool line tying;

2. the ladder winding method of transformer type sensor coil according to claim 1 is characterized in that: the overseas surface of said skeleton (1) winding region parcel two-layer alkali-free glass fiber cloth (2).

3. the ladder winding method of transformer type sensor coil according to claim 1; It is characterized in that: in the above-mentioned steps 5; Said coil outer surface wraps up two-layer polytetrafluoroethylene film (3), and said polytetrafluoroethylene film (3) outer surface wraps up two-layer alkali-free glass fiber cloth (2) again.

4. according to the ladder winding method of claim 1,2 or 3 described transformer type sensor coils, it is characterized in that: said insulating varnish is varnish.