CN201138611Y

CN201138611Y - Dry-type sparking coil with encapsulation protecting layer for iron core

Info

Publication number: CN201138611Y
Application number: CNU200720174175XU
Authority: CN
Inventors: 张西进
Original assignee: Zunyi Changzheng Automotive Parts Co Ltd
Current assignee: Zunyi Changzheng Automotive Parts Co Ltd
Priority date: 2007-10-27
Filing date: 2007-10-27
Publication date: 2008-10-22
Anticipated expiration: 2017-10-27

Abstract

A dry igniting loop, the iron core of which is provided with an encapsulation protection layer, consists of an epoxide resin encapsulation layer, a silicon gel, a cover plate, the combination of a primary loop package and a secondary loop package, a shell, an iron core and a jacket; the surrounding of the iron core is provided with an opened silicon gel jacket, the shape and size of which are matched with the iron core; the jacket is combined into a hexahedral cavity by a silicon cover plate on the opened direction to coat and sheath the iron core; the epoxide resin is encapsulated on the outer layer of the jacket, thus being capable of effectively preventing the contact part of the iron core and the epoxide resin from cracking; thereby ensuring the electric property quality of the igniting loop and increasing the service life.

Description

Iron core has the dry type ignition coil of embedding protective layer

One, technical field

The utility model relates to dry type ignition coil in the car electrics accessory, relates in particular to the dry type ignition coil that iron core has the embedding protective layer.

Two, background technology

The dry type ignition coil, be to assemble primary and secondary skeleton iron core in the enclosure, after finishing, assembling uses the epoxy resin embedding, traditional embedding mode is the epoxy resin embedding, directly directly contact with iron core with the primary and secondary skeleton, because directly the contact iron core is that macromolecular material contacts with the metal iron core, different its pucker ﹠ bloat coefficients of the performance of two kinds of materials are inconsistent, the contact site ftractures easily after epoxy resin is solidified by oven dry, influence the electric property and the mechanical performance of ignition coil, reduced useful life.At the special the technical program that adopts of above-mentioned defective, on iron core, set up layer protective layer, solved the contact site cracking problem of epoxy resin and iron core.

Three, summary of the invention

The purpose of this utility model provides the dry type ignition coil that a kind of iron core has the embedding protective layer, produces cracking with the contact site that solves encapsulated epoxy resin and iron core, and influences ignition coil electric property quality.The dry type ignition coil structure that has iron core embedding protective layer is by epoxy resin embedding layer; the silica gel cover plate; primary and secondary line package closes; shell; iron core silica gel sheath is formed; medium position is provided with opening shape iron core in the enclosure; during iron core insertion primary and secondary line package closes; around iron core, be provided with the shape opening silica gel sheath identical with iron core; one side of opening and two ends respectively are provided with the silica gel cover plate and form hexahedral silica gel protected layer the whole jacket of iron core; encapsulated epoxy resin around it; the silica gel sheath is closely contacted with iron core; and epoxy resin directly contacts with the silica gel sheath and do not contact with iron core, thereby stopped the generation of ftractureing between encapsulated epoxy resin and the iron core.Adopt the beneficial effect of the technical program to be, guarantee the electrical quality performance and the mechanical performance of dry type ignition coil, prolonged useful life.

Four, description of drawings

Fig. 1 has the structural representation of the dry type ignition coil of embedding protective layer for iron core;

Fig. 2 has the core structure schematic diagram of the dry type ignition coil of embedding protective layer for iron core;

Fig. 3 has the silica gel jacket structure schematic diagram of the dry type ignition coil of embedding protective layer for iron core.

Among the figure: 1-epoxy resin embedding layer, 2-silica gel cover plate, 3-primary and secondary coil package close, 4-shell, 5-iron core, 6-silica gel sheath.

Five, embodiment

The utility model iron core has the dry type ignition coil of embedding protective layer; in conjunction with the accompanying drawings embodiment is illustrated: its structure is by epoxy resin embedding layer 1; silica gel cover plate 2; primary and secondary coil package closes 3; shell 4; iron core 5; silica gel sheath 6 is formed; medium position is provided with opening shape iron core 5 in shell 4; iron core 5 inserts primary and secondary coil package and closes in 3; around iron core 5, be provided with the opening silica gel sheath 6 that shape and iron core 5 identical sizes adapt; one side and the two ends of opening respectively are provided with silica gel cover plate 2; silica gel cover plate 2 and silica gel sheath 6 are formed the silica gel protected layer of six cavitys; whole jacket around the iron core 5 is got up; at its outer encapsulated epoxy resin 1; the silica gel sheath is closely contacted with iron core; and epoxy resin 1 contacts with the silica gel sheath is outer; do not contact, thereby prevented the generation of ftractureing between encapsulated epoxy resin and the iron core with iron core 5.The cover plate of the protective layer of iron core and sheath all adopt silica gel material manufacturing of the same race.

Claims

1; a kind of iron core has the dry type ignition coil of embedding protective layer; it is by epoxy resin potting layer (1); silica gel cover plate (2); primary and secondary coil package closes (3); shell (4); iron core (5); silica gel sheath (6) is formed; it is characterized in that: the interior medium position of shell (4) is provided with opening shape iron core (5); iron core (5) inserts primary and secondary coil package and closes in (3); be provided with the opening silica gel sheath (6) that shape and the identical size of iron core (5) adapt on every side at iron core (5); one side of opening and and two ends respectively be provided with silica gel cover plate (2); silica gel cover plate (2) and silica gel sheath (6) are formed the protective layer of six cavitys; the whole on every side jacket of iron core (5) is got up, and its skin is established encapsulated epoxy resin (1).

2, have the dry type ignition coil of embedding protective layer by the iron core of claim 1, it is characterized in that: the cover plate of protective layer (2), and sheath (6) all adopts silica gel material of the same race manufacturing.