Electricity: electrical systems and devices – Housing or mounting assemblies with diverse electrical... – For electronic systems and devices
Patent
1995-11-30
1998-07-07
Sparks, Donald
Electricity: electrical systems and devices
Housing or mounting assemblies with diverse electrical...
For electronic systems and devices
361749, 361752, 361755, 361796, 439 762, H05K 114, H05K 502, H01R 909
Patent
active
057778507
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention is based on a built-on control device of the generic type of the main claim. A built-on control device of this kind is known for example from the post-published DE-PS 42 25 358.6. In this publication, a printed circuit board on which a conductor foil is mounted is arranged in a hoodlike single-component housing. Here, the printed circuit board is actually divided up into a plurality of rigid regions which, owing to the conductor foil, are connected by means of flexible sections. However, in the region of the rigid printed circuit board, the connections of the loads and also the connections of the plugs are placed in contact with the said printed circuit board. As a result, the respective connections of the printed circuit board have to be matched precisely to one another. In addition, the housing is of single-component construction, as a result of which the subsequent, or concluding production process is made more difficult.
SUMMARY OF THE INVENTION
The built-on control device according to the invention, has, in contrast, the advantage that it is easy to open for a concluding production process or for adjustment of the electronic components. The soldered connections of the control unit are thus easily accessible. Since the conductor foil is arranged directly on the inside of the lid, a good cooling effect, which in particular does not require any additional cooling elements in this region, is produced. In the region of the contact between the loads and the printed circuit board there is play owing to the elastic foil. As a result, the contacts cannot break off or be damaged in some other way. As a result of the use of an elastic foil, there is no risk of bending in the region of the loop between the rigid regions of the printed circuit board. The housing can be constructed in a very cost-effective way owing to its obliquely extending edge. The screw connections of the housing onto the hydraulic unit to be controlled are thus possible. The dissipation of heat from the electrical component is simplified. The length of the elastic region between the two rigid parts of the printed circuit board is reduced. Since the flexible foil is connected directly to the plug contacts, the printed circuit board can also be equipped with power components in this region. The seal between the built-on control device and the hydraulic unit is simple and satisfactory. In the case of multicomponent housings for the built-on control device, individual parts of the housing can be adapted to correspond to the external shape of the housing of the hydraulic unit, as a result of which additional power components, particularly those with large volumes, can be additionally installed in the built-on control device.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a view showing a section of a built-on control device in accordance with a first embodiment of the present invention; second embodiment of the present invention; and third embodiment of the present invention.
DESCRIPTION OF PREFERRED EMBODIMENTS
In FIG. 1, 10 represents the only partially represented housing block of the hydraulic unit of a hydraulic anti-lock brake system (hydraulic brake system with traction control) onto which a motor (not illustrated) can be flanged, which motor interacts, in a manner known per se, with a hydraulic pump (not illustrated), arranged in the housing block 10, and with solenoid valves 12, also arranged in the housing block. The open end side of the built-on control device 15 bears against the end side 13 of the housing block 10 which is opposite the motor 11, the multicomponent housing 16 of the built-on control device 15 being constructed as a trough-shaped lid.
A plurality of solenoid valves 12, two of which can be seen in FIG. 1, are arranged in the housing block 10 of the hydraulic unit. The said solenoid valves 12 project with their connection-side and drive-side ends into the interior 17 of the built-on control device 15.
The housing 16 has in the frame 18 a lateral plug opening 21 with a colla
Jakob Gert
Schimitzek Ralph
Robert & Bosch GmbH
Sparks Donald
Striker Michael J.
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