CN202282241U

CN202282241U - Power supply and measurement integrated current transformer

Info

Publication number: CN202282241U
Application number: CN2011204515507U
Authority: CN
Inventors: 徐其信; 吴世植
Original assignee: Foshan Huaxin Microlite Metal Co ltd
Current assignee: Foshan Huaxin Microlite Metal Co ltd
Priority date: 2011-11-15
Filing date: 2011-11-15
Publication date: 2012-06-20
Anticipated expiration: 2021-11-15

Abstract

The utility model provides a power supply and measurement integrated current transformer which comprises a shell of which the bottom is inserted with pins, as well as a power supply coil and a measurement coil which are overlapped together and packaged inside the shell, wherein the power supply coil and the measurement coil both mainly comprise iron cores wrapped by sheathes and coil windings wound on the iron core sheathes, and the coil windings are respectively led out by use of leading wires so as to be connected with the pins of the shell in a one-to-one correspondence manner. The power supply and measurement integrated current transformer provided by the utility model can be used for realizing power supply and measurement integration, can normally operate with no need of an external power supply, achieves the purposes of volume reduction, measurement accuracy improvement, high insulation performance, good heat dissipation effect and the like while changing the own structure, can be used for well overcoming the defects of the existing transformer in the prior art, and meets the requirements required in actual work.

Description

A kind of incorporate current transformer of supplying power and measure

Technical field

The utility model relates to the technical field of electric elements, refers in particular to a kind of incorporate current transformer of supplying power and measure.

Background technology

Convention in the industry; Present existing Current Transformer Secondary output needs could export the signal of demands of different through circuit computing; Circuit part also need have an external auxiliary power supply simultaneously; So just can make the entire circuit system be able to operate as normal, this design that adds accessory power supply can make the complex structure of Circuits System, volume is big, production cost is high, failure rate is high, maintenance cost is high or the like, be difficult to produce a desired effect.

Summary of the invention

The purpose of the utility model is to overcome the deficiency of prior art, the power supply that a kind of volume is little, certainty of measurement is high is provided and measures incorporate current transformer.

For realizing above-mentioned purpose; The technical scheme that the utility model provided is: a kind of incorporate current transformer of supplying power and measure; It include the bottom be inserted with the shell of stitch and stack together and be encapsulated in this shell the power supply coil with measure coil; Wherein, described power supply coil with measure coil and all mainly form by iron core that is surrounded by sheath and the coil windings that is wound on this iron core sheath, simultaneously this coil windings respectively usefulness draw corresponding one by one the joining of stitch with shell.

Power supply coil and measurement coil that described shell stacks together through epoxy encapsulation.

Described iron core is an annular core.

Described shell is a plastic shell.

Described lead-in wire is an enamel covered wire.

The utility model is after having adopted such scheme; Its great advantage be the utility model can accomplish the power supply and measure integrated; Do not need the external power supply just can operate as normal, and the utility model have been realized purposes such as smaller volume, certainty of measurement uprise, insulating properties height, good heat dissipation effect when changing itself structure; Many drawbacks that existing current transformer exists have been overcome well, required requirement when reaching real work.

Description of drawings

Fig. 1 is the front view of the utility model.

Exploded view when Fig. 2 does not encapsulate for the utility model.

Embodiment

Below in conjunction with specific embodiment the utility model is further specified.

Shown in accompanying drawing 1 and accompanying drawing 2; The described power supply of present embodiment and measure incorporate current transformer; It includes the bottom and is inserted with the plastic shell 1 of stitch and stacks together and through the power supply coil 2 of epoxy encapsulation this plastic shell 1 in and measurement coil 3; Wherein, Described power supply coil 2 with measure coil 3 all mainly by be surrounded by sheath and the annular core of making by amorphous or crystallite metal 4 and the coil windings that is wound on these annular core 4 sheaths form; Coil windings is drawn corresponding one by one the joining of stitch with plastic shell 1 with enamel covered wire respectively, and the present embodiment enamel covered wire of making lead-in wire usefulness adopts various colors to make a distinction respectively simultaneously, convenient identification.

During work, when this power supply, measure punching one circle of combination current instrument transformer or multicircuit winding, feeds specified in during electric current, measure coil 3 and will induce corresponding current signal at once, and deliver in the peripheral circuit and go, export as the signal of demands of different; The coil 2 of supplying power simultaneously also can feed with primary current, produces enough electric power to the required power supply of peripheral circuit work.

The embodiment of the above is the preferred embodiment of the utility model only, is not the practical range that limits the utility model with this, so the variation that all shapes according to the utility model, principle are done all should be encompassed in the protection range of the utility model.

Claims

1. a power supply and measure incorporate current transformer; It is characterized in that: it includes the bottom and is inserted with the shell (1) of stitch and stacks together and be encapsulated in the power supply coil (2) and measurement coil (3) in this shell (1); Wherein, Described power supply coil (2) and measure coil (3) and all mainly forms by iron core that is surrounded by sheath (4) and the coil windings that is wound on this iron core (4) sheath, simultaneously this coil windings respectively usefulness draw corresponding one by one the joining of stitch with shell (1).

2. a kind of incorporate current transformer of supplying power and measure according to claim 1 is characterized in that: power supply coil (2) and measurement coil (3) that described shell (1) stacks together through epoxy encapsulation.

3. a kind of incorporate current transformer of supplying power and measure according to claim 1 is characterized in that: described iron core (4) is an annular core.

4. a kind of incorporate current transformer of supplying power and measure according to claim 1 and 2 is characterized in that: described shell (1) is a plastic shell.

5. a kind of incorporate current transformer of supplying power and measure according to claim 1, it is characterized in that: described lead-in wire is an enamel covered wire.