Airbag activation circuit device
A technology for starting circuits and airbags. It is used in transportation and packaging, pedestrian/occupant safety arrangements, vehicle components, etc. It can solve problems such as damage to products, increase inspection time, etc., and achieve the effect of improving deterioration.
Active Publication Date: 2016-06-08
维宁尔瑞典安全系统公司
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Problems solved by technology
[0006] However, when the inner cover is removed and then reinstalled after a visual inspection, in addition to increasing the inspection time, there is a possibility that the product may be damaged when the inner cover is reinstalled.
In addition, an inspection device such as a checker is required for the power-on inspection
Method used
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Embodiment
[0026] Use the following Figure 1-4 , for the implementation of the embodiments of the present invention will be described.
[0027] 1 is a resin case, and the bottom surface 1a and one side surface 1b form a box shape with an opening. In the present invention, mounting portions 1c for mounting to a vehicle are provided on the outer extension side of the opening provided on the bottom surface 1a of the case 1, for example, at three corners.
[0028] Inside the casing 1 is installed a capacitor 3 for storing electric power for supplying power to the squib of the inflator when the airbag is activated. Such as figure 1 As shown, the capacitor 3 is mounted in a state of being in contact with the case 1 through a rib 1d provided inside the case 1 .
[0029] In addition, if figure 1 As shown, the housing 1 also accommodates a circuit board 4 inside. The circuit board 4 incorporates a control circuit that determines whether the vehicle has collided based on the acceleration o...
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The invention provides an airbag starting circuit arrangement which can perform confirmation of a capacitor disposed on a housing without detaching an inner cover, without wasting time and causing any damage, even if no inspection fixtures such as an inspection device is provided. The airbag starting circuit arrangement has a resin housing (1) which is installed to an installation portion (1a) of a vehicle, a circuit substrate (4) in which a control circuit is provided, a capacitor (3) which is used for storing electric power, and an inner cover (5) and a connector (2) which are disposed on the housing (1) and are used for isolating the circuit substrate (4) and the capacitor (3) which are disposed inside the housing (1) from outside. An opening portion (1e) is disposed on the housing (1) for observing the capacitor (3) from outside, wherein the opening portion (1e) is covered by a resin slice (6) which has better thermal conductivity than the housing (1). According to the airbag starting circuit arrangement, the capacitor disposed inside the housing can be observed and inspected from the opening portion, heat generated by the capacitor can be released through the resin component disposed at the opening part, so that degradation of the capacitor due to heat can be improved.
Description
technical field [0001] The invention relates to an air bag starting circuit device which uses electric power to control the starting of the air bag installed on the automobile as a safety device. technical background [0002] When a collision occurs, the airbag device ejects gas and deploys the airbag to protect the occupant from the impact of the collision. The airbag device utilizes an airbag starting circuit device, and its starting is controlled by electric power. [0003] This airbag activation circuit device has a structure in which a circuit board and a capacitor for storing electric power to supply power to a squib of an inflator when the airbag is activated are mounted in a housing. The circuit board incorporates a control circuit that determines a collision of the vehicle based on the acceleration or deceleration detected by the sensor, and outputs a control signal for deploying the airbag when the collision is determined to be a collision. [0004] In addition, ...
Claims
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IPC IPC(8): B60R21/01
Inventor 秋山健太郎田尻刚堀部启二
Owner 维宁尔瑞典安全系统公司