CN202042349U

CN202042349U - Automobile ignition coil

Info

Publication number: CN202042349U
Application number: CN2011201703294U
Authority: CN
Inventors: 吴勇; 于迪; 范晔平
Original assignee: SHANGHAI GUANGWEI ELECTRIC CO Ltd; SHANGHAI GUANGWEITUOPU ELECTRIC POWER CO Ltd; Shanghai Guangwei Electric and Tools Co Ltd
Current assignee: SHANGHAI GUANGWEI ELECTRIC CO Ltd; SHANGHAI GUANGWEITUOPU ELECTRIC POWER CO Ltd; Shanghai Guangwei Electric and Tools Co Ltd
Priority date: 2011-05-25
Filing date: 2011-05-25
Publication date: 2011-11-16
Anticipated expiration: 2021-05-25

Abstract

The utility model discloses an automobile ignition coil which comprises a shell, a low-voltage socket, an ignition coil mounting hole, an iron core, a winding, a magnetizer, a high-voltage head, a rubber sleeve and a spark plug. The automobile ignition coil is characterized in that the shell comprises an upper shell body and a lower shell body which are fixed into one body; the interiors of the upper shell body and the lower shell body are mutually communicated; an insulation bushing is arranged between the high-voltage head and the lower shell body; the main body part of the lower shell body takes a cylindric shape; and the lower shell body is made of a stainless steel material or an aluminum alloy material with good heat-conducting property. The automobile ignition coil has the beneficial effects that heat generated by the magnetizer can be rapidly emitted through a stainless-steel cylinder with good heat-conducting property, thereby avoiding aging or cracking of the corresponding part of the lower shell body due to heating, and affecting the service life of the ignition coil. The insulation bushing arranged between the high-voltage head and an assembling hole of the lower shell body can avoid breakdown of the shell body due to high-voltage discharge, thereby avoiding the problems of unsafe accident potentials and coil function failure.

Description

Automobile ignition coil

Technical field

The utility model relates to automobile igniter, relates in particular to a kind of automobile ignition coil.

Background technology

Automobile is the main vehicles of current society, plays important effect in people's daily life.And the fuel engines of automobile provides power for travelling of automobile, the starting of fuel engines then needs to produce high-voltage spark by automobile ignition coil and lights fuel oil, produce the high pressure expanding gas, the piston that promotes in the fuel engines driving cylinder moves, final driving automobile wheel.

The ignition coil of domestic production at present generally is the dry type ignition coil that needs high-voltage line to connect, and the dry type ignition coil is divided into bull dry type ignition coil and single head dry type ignition coil again.Wherein bull dry type ignition coil is mainly used in DIS, needs the connection of high-voltage line, and very big energy loss is arranged; In addition, bull dry type ignition coil is responsible for simultaneously to several cylinder igniting, as long as wherein 1 coil damage will cause whole coil to scrap, causes the significant wastage of resource.

The structure of single head dry type ignition coil comprises installing hole 1, Low-voltage socket 2, shell 3, iron core and winding and magnetic conductor 4, rubber sleeve 5, high-head 6, spark plug 7 referring to Fig. 1.Single head dry type ignition coil is similar to conventional transformer, and magnetic conductor is to make by silicon, silicon steel sheet stack or by iron, Si powder compacting, and coil is filled sealing by epoxy resin.Fit towards housing and with inner walls because of magnetic conductor, behind coil electricity, magnetic conductor will generate heat, and heat is directly passed to housing, makes the corresponding site heating of housing, aging even cracking, thereby influences the useful life of ignition coil.Moreover high-head 6 directly is contained in the wiring hole of housing, usually punctures because of electrion makes housing, causes dangerous accident potential and coil disabler.

The utility model content

At above-mentioned situation, the utility model provides a kind of automobile ignition coil, makes housing puncture the problem that causes dangerous accident potential and coil disabler with the magnetic conductor warming-up effect that solves single head dry type ignition coil to the useful life of ignition coil, high-head electrion.

To achieve these goals, the technical solution of the utility model is as follows:

Automobile ignition coil comprises shell, is arranged at the ignition coil installing hole, the iron core that is arranged at the enclosure downside and the winding that are provided with on the Low-voltage socket, shell of cover top portion, is arranged at enclosure and the corresponding magnetic conductor of iron core, is arranged at the high-head of outer casing bottom, the rubber sleeve that is arranged at the high-head outside and the spark plug that matches with high-head; It is characterized in that,

Described shell is divided into upper shell and lower house, and described upper shell and lower house inside communicate and is fixed as one;

Described high-head is installed in the pilot hole of lower house bottom, is provided with an insulating bushing between the pilot hole of high-head and lower house bottom.

Further, the top of described upper shell is provided with the Low-voltage socket installing hole.

Further, the main part of described lower house is cylindric.

Further, described ignition coil installing hole is at least two, is arranged at upper shell.

The beneficial effects of the utility model are that the heat that magnetic conductor produces distributes rapidly by the good stainless steel cylinder of heat conductivility, thereby avoids the corresponding site of lower house to wear out even cracking because of heating causes, and the useful life that has influence on ignition coil.The setting of insulating bushing avoids electrion that housing is punctured between high-head and the lower house pilot hole, thereby avoids the problem of dangerous accident potential and coil disabler.

Description of drawings

Fig. 1 is the structural representation of automobile ignition coil in the prior art.

Fig. 2 is the structural representation of the utility model automobile ignition coil.

Embodiment

For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.

Referring to Fig. 2, automobile ignition coil comprises shell, is arranged at the ignition coil installing hole 1, the iron core that is arranged at the enclosure downside and the winding 10 that are provided with on the Low-voltage socket 2, shell of cover top portion, is arranged at enclosure and the corresponding magnetic conductor 11 of iron core, is arranged at the high-head 6 of outer casing bottom, the rubber sleeve 5 that is arranged at the high-head outside and the spark plug 7 that matches with high-head.

Described shell is divided into upper shell 31 and lower house 32, and described upper shell 31 and lower house 32 inside communicate and are fixed as one; Described high-head 6 is installed in the pilot hole of lower house 32 bottoms, is provided with an insulating bushing 12 between the pilot hole of high-head 6 and lower house 32 bottoms.

Wherein, the top of described upper shell 31 is provided with the Low-voltage socket installing hole.The main part of described lower house 32 is cylindric, and described lower house 32 adopts good stainless steel material or the aluminum alloy materials of heat conductivility.Described ignition coil installing hole 1 is at least two, is arranged at upper shell 31.

Operation principle of the present utility model is: the iron core and the winding 10 that are arranged at the enclosure downside comprise primary coil and secondary coil, and wherein primary coil is connected with Low-voltage socket 2, and secondary coil is connected with high-head 6.When Low-voltage socket 2 is connected with the low-tension supply on the automobile, produce a very strong magnetic field around the growth along with electric current, make iron core store magnetic field energy; Low-tension supply on Low-voltage socket 2 and automobile disconnects, and decays rapidly in the magnetic field of primary coil, and rapidly disappearing of the magnetic field of primary coil makes secondary coil induce very high voltage, make magnetic conductor 11 heatings, simultaneously, dimension level coil is connected with high-head 6, so produce high voltage on the high-head 6.Spark plug 7 cooperates with high-head 6, is arranged at a end in the cylinder so the high voltage on the high-head 6 is sent to spark plug 7.The spark plug fuel oil in the spark ignition engines cylinder of setting out out under high-tension effect makes engine running.

Low-voltage socket 2 of the present utility model is fixed in upper shell 31 by the Low-voltage socket installing hole, and iron core and winding 10 are arranged at the centre position of lower house 32,11 inwalls of being close to lower house 32 of magnetic conductor.Because of shell is divided into upper shell 31 and lower house 32, so upper shell 31 can adopt the working of plastics of baroque single injection-molded according to the assembling needs of Low-voltage socket 2 grades; The heat that the magnetic conductor 11 that lower house 32 then can adopt the good stainless steel part of heat conductivility to make to be close to lower house 32 inwalls produces distributes rapidly, thereby avoid the corresponding site of lower house to wear out even cracking, and the useful life that has influence on ignition coil because of heating causes.The setting of insulating bushing avoids electrion that housing is punctured between high-head and the lower house pilot hole, thereby avoids the problem of dangerous accident potential and coil disabler.

More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; the utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1. automobile ignition coil comprises shell, is arranged at the ignition coil installing hole, the iron core that is arranged at the enclosure downside and the winding that are provided with on the Low-voltage socket, shell of cover top portion, is arranged at enclosure and the corresponding magnetic conductor of iron core, is arranged at the high-head of outer casing bottom, the rubber sleeve that is arranged at the high-head outside and the spark plug that matches with high-head; It is characterized in that,

2. automobile ignition coil according to claim 1 is characterized in that the top of described upper shell is provided with the Low-voltage socket installing hole.

3. automobile ignition coil according to claim 1 is characterized in that, the main part of described lower house is cylindric.

4. automobile ignition coil according to claim 1 is characterized in that, described ignition coil installing hole is at least two, is arranged at upper shell.