CN2099200U

CN2099200U - Spark coil for petrol engine

Info

Publication number: CN2099200U
Application number: CN 91209863
Authority: CN
Inventors: 张媛
Original assignee: Individual
Current assignee: Zhang Yuan
Priority date: 1991-06-12
Filing date: 1991-06-12
Publication date: 1992-03-18

Abstract

The utility model discloses a spark coil for a petrol engine. The purpose of the utility model is that the energy and the performance of the traditional spark coil for the petrol engine are improved. A skeleton (2), a secondary coil (1) and a primary coil (9) which are winded from the inside to the outside on the skeleton (2) in turn are installed in an outer shell (12). The utility model is poured into one body by flame retardancy and insulation encapsulation materials (13). High voltage lead wires and low voltage lead wires (3), (5), (10) and (11) are respectively connected with outer lead wire sockets (4) and (6). The encapsulation material (13) is adhered on the outer shell (12). A closed magnetic circuit iron core (14) with tiny gaps is inserted into the skeleton (2). The iron core is fixed and connected with a support frame (16) by a screw bolt (15) again. The structure of the utility model realizes the petrol engine to ignite at various rotary speed and burn the lean mixture.

Description

Spark coil for petrol engine

The utility model discloses a kind of Ignition Coils of Gasoline Engines.

Conventional gasoline machine spark coil adopts the open-flux path iron core, and its excitatory magnetic potential mainly consumes in air gap, so energy conversion efficiency is low, ignition energy is little, generally have only about 40mj, thereby cold start-up and thermal starting difficulty.Firing characteristic is also poor, and the phenomenon of catching fire when high speed is many, oil consumption big and the weak mixture that can not burn.For example the DQ130 type of prior art promptly so.

For overcoming the deficiency of above-mentioned conventional art, the purpose of this utility model is to make a kind of Ignition Coils of Gasoline Engines.

Adopt closed magnetic circuit to improve the energy conversion efficiency of primary air and the high voltage of in secondary circuit, setting up for reaching this purpose the utility model with micro-gap.By increasing the electromagnetic energy of the elementary winding of this spark coil, the ignition energy of secondary windings induction is brought up to more than the 100mj.Thereby assurance the utility model can both be put the weak mixture that can burn of fighting under various rotating speeds.

Describe the utility model in detail below in conjunction with accompanying drawing:

1, the electromagnetic wire with diameter 0.03-0.08mm is upward flat around secondary winding ［ 1 ］ at skeleton ［ 2 ］, and inner end lighting outlet ［ 3 ］ is connected on the high-voltage connection socket ［ 4 ］; Outer end lighting outlet ［ 5 ］ is received on the low-voltage lead socket ［ 6 ］.The insulating blanket ［ 7 ］ that line layer and line interlayer are filled up should be wideer to each 2-10mm of both sides than secondary winding ［ 1 ］.

2, skeleton ［ 8 ］ is sleeved on secondary winding ［ 1 ］ outside, the electromagnetic wire with diameter 0.7mm-1.2mm is flat around primary air ［ 9 ］ thereon.Inner end lighting outlet ［ 10 ］ and secondary outer end lighting outlet ［ 5 ］ are connected on the low-voltage lead socket ［ 6 ］ together.Outer end lighting outlet ［ 11 ］ be connected on low-voltage lead socket ［ 6 ］ another extremely go up.

3, coil that coiling is good is put into shell ［ 12 ］ location and is inserted vacuum system more together and vacuumize and pressurize with flame retardant epoxy Embedding Material ［ 13 ］ embedding and solidify.

4, the silicon steel plate stack with thick 0.3mm-0.55mm is fixed into iron core ［ 14 ］.Its shape can be CC shape, EE shape, ET shape, diclinic chevron and EI shape.Usually select CC shape or EE shape for use.

5, iron core ［ 14 ］ is inserted in the skeleton ［ 2 ］, stay the gap of 0.1-0.8mm therebetween, in this gap, insert Embedding Material ［ 13 ］ in advance.

6, using bolt ［ 15 ］ that iron core ［ 14 ］ and support ［ 16 ］ are connected and fixed at last is integral.

Embodiment 1

The diameter 0.7mm electromagnetic wire coiling of a, primary air,

The diameter 0.03mm electromagnetic wire coiling of b, secondary winding,

C, the thick 0.3mm of silicon steel plate select CC shape for use,

D, iron core gap are 0.1mm,

F, secondary winding insulating blanket are wideer to each 2mm of both sides than secondary winding.

Embodiment 2

The diameter 1mm electromagnetic wire coiling of a, primary air,

B, secondary winding diameter 0.06mm.The electromagnetic wire coiling,

C, the thick 0.3mm of silicon steel plate, select EE shape for use,

D, iron core gap are 0.4mm,

F, secondary winding insulating blanket are wideer to each 4mm of both sides than secondary winding.

Embodiment 3

The diameter 1.2mm electromagnetic wire coiling of a, primary air,

The diameter 0.08mm electromagnetic wire coiling of b, secondary winding,

C, the thick 0.5mm of silicon steel plate.Select ET shape for use,

D, iron core gap are 0.8mm,

F, secondary winding insulating blanket are wideer to each 10mm of both sides than inferior coil.

Claims

1, a kind of with potting compound [13] will upward the secondary winding [1] and the primary air [9] of coiled irritate solid in shell [12] at skeleton [2], be connected in high pressure lighting outlet [3] [5] and low pressure lighting outlet [10] [11] in high low pressure lead socket [4] and [6] respectively and cement on the shell [12] with potting compound [13], again iron core [14] is inserted in the skeleton [2], the Ignition Coils of Gasoline Engines of using bolt [15] that iron core [14] and support [16] are connect, fixedly form at last

It is characterized in that:

A, said iron core are to be that the silicon steel plate stack of 0.3-0.55mm fixedly forms with thickness,

B, said skeleton [2] and [8], shell [12] and outer fuse socket [4] and [6] are with fire-retardant, heat-resisting and thermal conductivity is good and the insulating property excellent material is made,

C, said primary air [9] are that the electromagnetic wire coiling with diameter 0.7-1.2mm forms,

D, said secondary winding [1] are that the electromagnetic wire coiling with diameter 0.03-0.08mm forms,

The insulating blanket of e, said secondary winding [1] usefulness should go out each 2-10mm of both sides than secondary winding is wide,

F, said coil [1] and [9], skeleton [2] and [8], shell [12], outer fuse socket [4] and [6] need with Embedding Material [13] embedding of insulating strength height, fire-retardant, heat-resisting and good heat conductivity, are solidified togather,

G, said iron core gap stay 0.1-0.8mm, should insert Embedding Material [13] in advance in this gap when inserting skeleton [2].

2, Ignition Coils of Gasoline Engines according to claim 1 is characterized in that described core configuration is a kind of by what select in CC shape or EE shape EI shape ET shape and the diclinic chevron.

3, Ignition Coils of Gasoline Engines according to claim 1 is characterized in that described silicon steel plate thickness is 0.5mm or 0.30mm.

4, Ignition Coils of Gasoline Engines according to claim 1, the electromagnetic wire diameter that it is characterized in that described coiling primary air is that 0.8mm-is to 1mm.

5, Ignition Coils of Gasoline Engines according to claim 1, the electromagnetic wire diameter that it is characterized in that described coiling secondary winding is that 0.04mm is to 0.06mm.

6, Ignition Coils of Gasoline Engines according to claim 1 is characterized in that insulating blanket that described coiling secondary winding uses is than wide each 4mm of both sides of going out of coil.

7, Ignition Coils of Gasoline Engines according to claim 1 is characterized in that described iron core gap is 0.4mm.