Fixture and method for securing a circuit board within a housing
A technology for fixing devices and circuit boards, which is applied in the direction of installing board safety devices, providing connectors and printed circuit boards, and supporting structure installation, etc., which can solve problems such as circuit board damage, short circuit, and high manufacturing cost
Active Publication Date: 2011-12-14
ROBERT BOSCH GMBH
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Deviations in the range of 1 / 10 mm can already lead to destruction of the printed circuit board when it is inserted into the housing, because, for example, shearing of the foil of the connecting pin or of the metal press-in sleeve surrounded by the opening is caused by the deviation. Can cause a short circuit when contacting printed conductors arranged on the circuit board
A high share of defective products again leads to higher manufacturing costs
Method used
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Embodiment Construction
[0016] The acceleration sensor 2 shown in the accompanying drawings is mainly composed of a housing 4, a circuit board 6 assembled in the housing 4 and possibly other components, which are not important for understanding the present invention. These other components are necessary and are therefore likewise not shown and described in order to simplify the illustration.
[0017] as in figure 1 As shown most clearly in , the circuit board 6 is equipped on its upper side with conductor tracks, electronic circuits and discrete components, of which only the processor 8 for evaluating the acceleration measurement is shown by way of example. as in Figure 5 As shown most clearly in , the circuit board 6 has an elongated rectangular outline with chamfers 10 . The circuit board 6 is provided near one end thereof with two through-holes 12 with circular cross-section through-hole metallization (durchkontaktiert), which are used to receive two complementary connecting pins 14 of the hous...
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The invention relates to a fixing device and a method for fixing a printed circuit board (6) in a housing (4), wherein in order to produce a soldering-free electrical and mechanical connection between the housing (4) and the printed circuit board (6), during the insertion of the printed circuit board (6) into the housing (4), connecting pins (14) projecting beyond the housing (4) are pressed into plated-through openings (13) in the printed circuit board (6). According to the invention, for mechanical fixing and for compensating for tolerances, alongside two connecting pins (14) required for the electrical connection, a fixing element (44) integrally formed on the housing (4) in the interior of the housing is provided, which fixing element, during the insertion of the printed circuit board (6) into the housing (4), engages in a frictionally locking manner with an opposite outer boundary edge (34) of the printed circuit board (6).
Description
technical field [0001] The invention relates to a fastening device for fastening a circuit board in a housing according to the preamble of claim 1 and a device for fastening a circuit board in a housing according to the preamble of claim 10 method. Background technique [0002] When installing an acceleration sensor of an airbag system for collision detection, it is already known to install a circuit board in the housing of the acceleration sensor, which circuit board has the electronic components and circuits required for measuring the corresponding acceleration and evaluating the measurement. The circuit board is fixed there in the housing by means of press-in technology, with which a metal connecting pin protruding from the base of the housing and protruding into the housing opposite to the direction of insertion of the circuit board and a complementary channel in the circuit board are formed. Solder-free electrical and mechanical connection between the openings of the h...
Claims
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IPC IPC(8): H05K7/14
CPCH05K7/1417H05K5/0082
Inventor W·沃恩尔M·卢德威格A·布鲁纳弗南德茨
Owner ROBERT BOSCH GMBH