Device for storing energy and transforming energy

An energy conversion and energy storage technology, applied in the direction of transformer/inductor parts, transformers, electrical components, etc., can solve the problem of undesired installation gaps, and achieve the effect of load reduction

Active Publication Date: 2011-11-23
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in such known ignition coils, in particular, unwanted installation play occurs

Method used

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  • Device for storing energy and transforming energy
  • Device for storing energy and transforming energy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] Refer to the following figure 1 An ignition coil 1 according to an embodiment of the present invention will be described.

[0013] exist figure 1 The ignition coil 1 shown in is a compact ignition coil comprising a surrounding core 2 and an I-core 3 . The peripheral core 2 surrounds the I-core 3 and is made of a first part 2a and a second part 2b. The first and second parts 2a, 2b are both substantially L-shaped. The peripheral core as well as the I-core are produced, for example, from coated sheet metal. The peripheral core 2 is also surrounded by a casing 4 .

[0014] Arranged around I-core 3 is a first coil former 5 with a first winding 6 , which is supplied with current from the vehicle electrical system of the motor vehicle. Adjacent to the first coil former 5 , a second coil former 7 is arranged and includes a second winding 8 . The number of turns of the second winding 8 is now considerably higher than the number of turns of the first winding 6 . The secon...

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Abstract

The present invention relates to a device for storing energy and for transforming energy, particularly an ignition coil of an ignition system of a motor vehicle, comprising a magnetically acting I-core (3), a first coil body (5) receiving a first winding (6) connected to a supply voltage, a second coil body (7) comprising a second winding (8) connected to a high-voltage terminal, a circumferential core (2) surrounding the I-core (3), the first winding (6) and the second winding (8), and a permanent magnet (9) disposed at one end (3b) of the I-core (3), characterized in that between the permanent magnet (9) and the circumferential core (3) a first insulation (10) and between the other end (3a) of the I-core and the circumferential core (2) a second insulation (11) are provided.

Description

technical field [0001] The invention relates to a device for energy storage and energy conversion, especially an ignition coil for an ignition device of a motor vehicle. Background technique [0002] Energy storage and energy conversion devices of various designs are known from the prior art and are used in particular as ignition coils, which represent high-voltage sources for transferring energy and for controlling spark plugs in internal combustion engines operating according to the Otto principle. In the case of this type of ignition coil, electrical energy with a generally low supply voltage from the on-board DC network is converted into magnetic energy, which is converted into electrical energy with a high voltage at the desired moment when an ignition pulse should be sent to the spark plug . [0003] To convert from electrical energy to magnetic energy, the car's on-board electrical network current flows through the first coil, which is usually a winding made of coppe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F38/12
CPCH01F38/12H01F2038/127H01F27/324
Inventor W·斯坦伯格
Owner ROBERT BOSCH GMBH
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