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Circuit device having at least one circuit carrier package cover, especially gearbox controller

A circuit device, circuit carrier technology, applied in the direction of electrical components, sealed enclosures, electrical equipment enclosures/cabinets/drawers, etc.

Inactive Publication Date: 2012-08-29
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Therefore, the technical problem to be solved by the present invention is to create a circuit arrangement with a plurality of electrical and / or electronic components that is encapsulated as tightly as possible, and which has a reliable mechanism for protecting the components from possible ingress of oil and Influence of mechanical vibrations, the circuit arrangement is resistant to adverse environmental influences and is also sufficiently air-permeable to the outside in order to prevent overpressure in the housing

Method used

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  • Circuit device having at least one circuit carrier package cover, especially gearbox controller
  • Circuit device having at least one circuit carrier package cover, especially gearbox controller
  • Circuit device having at least one circuit carrier package cover, especially gearbox controller

Examples

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Embodiment Construction

[0040] figure 1 A schematic view of a first embodiment of the circuit arrangement is shown.

[0041] This not yet closed embodiment of the circuit arrangement 10 also includes a circuit carrier 12 with a plurality of electrical and / or electronic components 14 which are soldered into the circuit carrier 12 . The circuit carrier 12 can be formed from a conventional single-layer or multi-layer printed circuit board made of fiber-reinforced epoxy resin, or from a ceramic substrate (so-called “LTCC”, low temperature co-fired ceramic). The cover 18 can be made of a metallic material, such as aluminum, or optionally of a fiber-reinforced plastic material. In order to create an interior space 16 that is as tightly closed as possible, the cover 18 is connected or bonded to the circuit carrier 12 , wherein the circuit carrier 12 also has a sealing function in addition to its own function of electrical connection between the components. A cavity-shaped recess 20 is machined into the co...

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Abstract

The invention relates to a circuit device having at least one circuit carrier package cover, especially a gearbox controller. The circuit device (10, 30, 40, 50, 70), especially the gearbox controller has at least one cover (18, 52) for encapsulating a circuit carrier (12) in which several electrical and electronic components (14) are mounted. An absorber, formed by oil-combined loose materials or forming bodies (76, 78) having several different space geometrical shapes is sealed in inner space (16) for absorbing the penetrated oil from outside. With the absorber, sensitive component (14) will not be wet by oil.

Description

technical field [0001] The invention relates to a circuit arrangement, in particular a transmission control unit, with at least one cover for enclosing a circuit carrier. Background technique [0002] There are more and more electronic system components being integrated into modern motor vehicles. Known examples for this are electronic engine control or transmission control as well as electronic antilock braking systems and vehicle stabilization systems. [0003] Such a controller is designed with a circuit carrier, which is equipped with a plurality of electronic and / or electrical components. The circuit carrier is enclosed in the controller housing in order to protect in particular the components there against harmful environmental influences. Rather, the transmission controller is in particular located directly or in the region of the oil sump, so that a controller housing that is as tightly closed as possible is required in order to protect sensitive electrical and / or ...

Claims

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Application Information

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IPC IPC(8): H05K5/06H05K5/03
CPCH05K5/064H05K5/069
Inventor P.克洛贝斯
Owner ROBERT BOSCH GMBH
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