Method for filling and pouring epoxy resin into ignition coil
An ignition coil and epoxy resin technology, which is applied in coil manufacturing, transformers, electrical components, etc., can solve the problems of poor pouring effect of ignition coil epoxy resin, and achieve the effects of large air surface, low temperature rise, and increased service life
Inactive Publication Date: 2010-11-24
遵义长征汽车零部件有限公司
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Problems solved by technology
[0004] The purpose of the present invention is to provide a new epoxy resin pouring method for the ignition coil to improve the insulation performance of the ignition coil
Method used
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Embodiment Construction
[0007] During the specific operation, after winding the automobile ignition coil, put it into the coil shell, set the radial cover plate on the coil shell, pour epoxy resin from the radial cover hole, and install the radial cover plate after passing the test and drying.
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The invention relates to a method for filling and pouring epoxy resin into an ignition coil. In the method, epoxy resin is radially poured along a secondary winding of an ignition coil. The section resistance existing in the ignition coil during axial pouring is avoided, the epoxy resin is infiltrated along the gravity direction without obstruction in a vacuum state, and residual gas rises to escape out of the ignition coil without obstruction. Meanwhile, while radially pouring, the opening surface is larger than that of axial pouring, the heat conducting performance of the epoxy resin is better than that of a coil shell material, and the epoxy resin has large air contact surface, high heat dissipation and low temperature rise, therefore, the service life of the radially-poured ignition coil is prolonged by more than 40 percent compared with that of an axially-poured ignition coil with same structure.
Description
technical field [0001] The invention relates to a pouring method of epoxy resin for an insulating layer of an automobile ignition coil, and belongs to the technical field of production of automobile electric parts. Background technique [0002] The secondary winding of the ignition coil of a modern automobile is wound with thousands to tens of thousands of turns of enameled wire of 0.03-0.06mm, and the voltage generated during operation is as high as tens of kilovolts. (Engineering plastics) are divided into more than ten slots, and more than ten thousand turns of winding groups are wound in the slots to form more than ten coils. In this way, each group of coils must bear thousands of volts. The transition (jumper) gap between each slot and the inter-turn insulation of the enameled wire in each slot is not enough to rely on the strength provided by the enameled wire insulation layer, and must rely on Epoxy filled. The quality of epoxy resin filling is the fundamental guara...
Claims
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IPC IPC(8): H01F38/12H01F41/12F02P3/02
Inventor 何朝翔李家正吴兴林杨建国李先序
Owner 遵义长征汽车零部件有限公司
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