CN209880381U - Current transformer for intelligent switch - Google Patents

Abstract

The utility model relates to a current transformer for intelligent switch, including iron core, enameled wire, coil, the iron core includes first core and second core, first core and second core comprise first core, second core, third core, first core and second core peg graft each other and form the rectangle, first core and second core cooperation department are equipped with the profile of tooth ripples, the iron core both ends are equipped with the spacing piece that is parallel to each other respectively, the iron core runs through spacing piece middle part, the spacing piece forms the spacing space that supplies the coil winding, the coil winding is in spacing space, the number of turns of coil is 600-, the problem of the mutual inductor bulky precision low is solved.

Description

Current transformer for intelligent switch

Technical Field

The utility model relates to a mutual-inductor technical field, in particular to a current transformer for intelligence switch.

Background

The current transformer is an instrument for measuring by converting a large primary side current into a small secondary side current according to the electromagnetic induction principle. The current transformer is composed of a closed iron core and a winding. The primary side winding of the transformer has few turns and is connected in a circuit of the current to be measured.

In the prior art, the volume of the current transformer is large, the number of turns of a wound coil is small, and the precision is insufficient, so that the efficiency is low in use.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a current transformer that precision is high for intelligent switch.

The technical scheme of the utility model is realized like this: a current transformer for an intelligent switch comprises an iron core, an enameled wire and a coil, wherein the iron core comprises a first core body and a second core body, the first core body and the second core body are composed of a first core part, a second core part and a third core part, the first core body and the second core body are mutually spliced to form a rectangle, a tooth-shaped wave is arranged at the matching position of the first core body and the second core body, two ends of the iron core are respectively provided with a limiting piece which is parallel to each other, the iron core penetrates through the middle of the limiting piece, the limiting piece forms a limiting space for winding the coil, the coil is wound in the limiting space, the number of turns of the coil is 600-increased-2000, the iron core is formed by mutually overlapping iron core pieces, the enameled wire is electrically connected with the coil and extends towards one end, a welding head is arranged at one end, which extends outwards, and one end of the welding head is connected.

By adopting the technical scheme, the iron core comprises a first core body and a second core body, the size of the iron core is smaller than that of a common iron core, the use is convenient, the first core body and the second core body are both composed of a first core part, a second core part and a third core part, the first core part is vertically arranged on the short side, the second core part is horizontally arranged, the third core part is vertically arranged on the long side, the first core body and the second core body are mutually spliced to form a rectangle, the production and assembly efficiency is improved through splicing, a tooth-shaped wave is arranged at the matching part of the first core body and the second core body, the splicing part is set to be in a tooth shape through the tooth-shaped wave, the connection strength is improved, the two ends of the iron core are respectively provided with mutually parallel limiting pieces, the iron core penetrates through the middle parts of the limiting pieces, the limiting pieces form a limiting space for winding a coil, and the coil is wound in the limiting, the limiting space shape prevents displacement of the coil or solves the problem of assembly, the number of turns of the coil is 600-2000, the precision of the mutual inductor is greatly improved due to the increase of the number of turns, the iron core is formed by overlapping iron chips, punching is carried out after the iron chips are overlapped through multiple layers, a large amount of assembly time is saved, the working efficiency is improved, the enamelled wire is electrically connected with the coil and extends towards one end, a welding head is arranged at one end, extending outwards, of the enamelled wire, one end of the welding head is connected with the socket connector, and the use convenience of the mutual inductor is improved.

The utility model discloses further set up to: the iron core is composed of high-conductivity nanocrystals.

Through adopting above-mentioned technical scheme, the nano-crystal is littleer, the precision is higher, the loss is littleer for traditional iron core volume, has improved work efficiency.

The utility model discloses further set up to: the iron core is provided with three groups.

Through adopting above-mentioned technical scheme, the precision of mutual-inductor has been improved greatly in the setting of multiunit iron core.

The utility model discloses further set up to: and the coils at the two ends of the iron core are electrically connected through a wire.

By adopting the technical scheme, the working efficiency is improved.

The utility model discloses further set up to: and an insulating sleeve is sleeved outside the enameled wire.

Through adopting above-mentioned technical scheme, set up through insulating cover and prevented that intertwine between the enameled wire from causing and use inconvenience and can carry out better protection to the enameled wire.

The utility model discloses further set up to: and a socket groove for inserting the welding head is formed in the socket device.

By adopting the technical scheme, the socket groove is convenient for inserting and assembling the welding head, and the convenience is improved.

The utility model discloses further set up to: and the outer side of the coil is wrapped with an insulating adhesive tape.

By adopting the technical scheme, the insulating tape can fix the enameled wire or the lead wire inserted into the coil, and can play an excellent protection role on the coil.

The utility model discloses further set up to: and a through hole for extending the enameled wire and the lead is arranged at one end edge of the limiting piece.

By adopting the technical scheme, the convenience and the installation efficiency are improved.

The utility model discloses further set up to: the coil is made of copper wire.

By adopting the technical scheme, the copper wire is high in conductivity and high-temperature resistance and is economical.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a sectional view of the overall structure of an embodiment of the present invention;

FIG. 2 is a sectional view of the iron core and the spacing piece according to the embodiment of the present invention;

fig. 3 is a schematic view of the local structure of the iron core and the limiting piece according to the embodiment of the present invention.

Reference numerals: 1. an iron core; 11. a first core; 12. a second core; 13. a first core part; 14. a second core part; 15. a third core part; 16. tooth-shaped waves; 17. a limiting sheet; 171. a limiting space; 172. a through hole; 2. a coil; 21. an insulating tape; 3. coating a paint line; 31. welding a head; 32. an insulating sleeve; 4. a socket device; 41. a socket slot; 5. and (4) conducting wires.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 3, the utility model discloses a current transformer for an intelligent switch, which comprises an iron core 1, an enameled wire 3 and a coil 2, wherein the iron core 1 comprises a first core 11 and a second core 12, the volume of the iron core 1 is smaller than that of a common iron core 1, the usage is convenient, the first core 11 and the second core 12 are composed of a first core 13, a second core 14 and a third core 15, the first core 13 is a vertically arranged short side, the second core 14 is a horizontally arranged side, the third core 15 is a vertically arranged long side, the first core 11 and the second core 12 are mutually spliced to form a rectangle, the efficiency of production and assembly is improved through splicing, a tooth-shaped wave 16 is arranged at the matching position of the first core 11 and the second core 12, the splicing position is set as a tooth-shaped through the tooth-shaped wave 16, the connection strength is improved, the two ends of the iron core 1 are respectively provided with a limiting piece 17 which are parallel to each other, the iron core 1 penetrates through the middle part of the limiting piece 17, the stopper piece 17 forms a stopper space 171 in which the coil 2 is wound, the coil 2 is wound in the stopper space 171, the limiting space 171 shape prevents the displacement of the coil 2 or the problem of assembling, the number of turns of the coil 2 is 600-2000, the increase of the number of turns greatly improves the precision of the transformer, the iron core 1 is formed by mutually overlapping iron core 1 pieces, by stamping after the multilayer iron core 1 is overlapped, a large amount of assembly time is saved, the working efficiency is improved, the enameled wire 3 is electrically connected with the coil 2 and extends towards one end, a welding head 31 is arranged at one end of the enameled wire 3 extending outwards, one end of the welding head 31 is connected with the socket 4, so that the use convenience of the mutual inductor is improved.

The iron core 1 is composed of high-conductivity nanocrystals, and compared with the traditional iron core 1, the nanocrystals are smaller in size, higher in precision and smaller in loss, and the working efficiency is improved.

The iron core 1 is provided with three groups, and the accuracy of the mutual inductor is greatly improved by the arrangement of the iron cores 1.

The coils 2 at the two ends of the iron core 1 are electrically connected through the conducting wire 5, so that the working efficiency is improved.

3 outside covers of enameled wire are equipped with insulating cover 32, have prevented through setting up of insulating cover 32 that intertwine from causing between the enameled wire 3 and use inconvenience and can carry out better protection to enameled wire 3.

The socket device 4 is internally provided with a socket groove 41 for inserting the welding head 31, and the socket groove 41 is convenient for inserting and assembling the welding head 31, thereby improving the convenience.

The outer side of the coil 2 is wrapped by an insulating tape 21, the insulating tape 21 can fix the enameled wire 3 or the lead 5 inserted into the coil 2, and the coil 2 can be well protected.

Limiting piece 17 one end border is equipped with the through-hole 172 that supplies enameled wire 3 and wire 5 to stretch out, has improved convenience and installation effectiveness.

The coil 2 is made of copper wires, and the copper wires are high in conductivity and high-temperature resistance and economical.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The utility model provides a current transformer for intelligence switch, includes iron core, enameled wire, coil, its characterized in that: the iron core comprises a first core body and a second core body, the first core body and the second core body are respectively composed of a first core body, a second core body and a third core body, the first core body and the second core body are mutually spliced to form a rectangle, tooth-shaped waves are arranged at the matching position of the first core body and the second core body, two ends of the iron core are respectively provided with limiting pieces which are mutually parallel, the iron core penetrates through the middle parts of the limiting pieces, the limiting pieces form a limiting space for winding a coil, the coil is wound in the limiting space, the number of turns of the coil is 600-2000-plus-2000, the iron core is formed by mutually overlapping iron core pieces, the enamelled wire is electrically connected with the coil and extends towards one end, a welding head is arranged at one end of the enamelled wire extending outwards, and one end of the welding head.

2. A current transformer for an intelligent switch according to claim 1, characterized in that: the iron core is composed of high-conductivity nanocrystals.

3. A current transformer for an intelligent switch according to claim 1, characterized in that: the iron core is provided with three groups.

4. A current transformer for an intelligent switch according to claim 1, characterized in that: and the coils at the two ends of the iron core are electrically connected through a wire.

5. A current transformer for an intelligent switch according to claim 1, characterized in that: and an insulating sleeve is sleeved outside the enameled wire.

6. A current transformer for an intelligent switch according to claim 1, characterized in that: and a socket groove for inserting the welding head is formed in the socket device.

7. A current transformer for an intelligent switch according to claim 1, characterized in that: and the outer side of the coil is wrapped with an insulating adhesive tape.

8. A current transformer for an intelligent switch according to claim 1, characterized in that: and a through hole for extending the enameled wire and the lead is arranged at one end edge of the limiting piece.

9. A current transformer for an intelligent switch according to claim 1, characterized in that: the coil is made of copper wire.