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Fixing structure and control device using that fixing structure

一种固定结构、控制装置的技术，应用在连接构件、运输和包装、仪器的零部件等方向，能够解决材料易碎、电路板性能下降、壳体2破坏等问题，达到良好性能、防止破坏、减小振动的效果

Inactive Publication Date: 2005-06-01
FUJITSU GENERAL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] (2) In the case of a molded case, the material is brittle, so when the vehicle body is deformed in a vehicle collision, the case 2 is destroyed before the deformation is transmitted to the circuit board 3
However, in this case, the performance of transmitting the shock at the time of collision to the circuit board deteriorates

Method used

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  • Fixing structure and control device using that fixing structure
  • Fixing structure and control device using that fixing structure
  • Fixing structure and control device using that fixing structure

Examples

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Embodiment Construction

[0041] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0042] figure 2 is a circuit diagram of an airbag control device applying the present invention, and image 3 is showing figure 2 State diagram of the airbag device shown in . If a collision or the like causes an impact to the vehicle 5 , the impact sensor 31 detects this and outputs a detection signal to an airbag ECU 32 . The airbag ECU 32 determines whether there is a collision based on the input signal. When it is judged that a collision has occurred, it will send an activation signal for deploying the airbag 33 to protect the passenger. The operation of the airbag ECU is well known, and its description is omitted here.

[0043] Figure 4 It is an external sectional view of an impact sensor device applying the present invention; Figure 5 yes Figure 4 Top view of the device shown in ; Figure 6 is along Figure 5 Sectional view a...

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PUM

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Abstract

The present invention relates to a fixed structure and a control device using such a fixed structure. In this fixing structure, an impact transmitted to the case is efficiently transmitted to a circuit board, and strain or the like generated at the case is not transmitted to the circuit board. This fixing structure includes a circuit board for mounting electronic devices, a case for storing the circuit board inside, and a plurality of plates provided at the case for fixing the circuit board. mount. Some of the plurality of board mounts rigidly mount the circuit board to the housing. Thereby, the impact is well transmitted to the electronics. The remaining board mounts are formed to flexibly mount the circuit board to the housing. Thereby, the strain generated at the housing is no longer transmitted to the circuit board, and the circuit board can be prevented from being damaged.

Description

technical field [0001] The present invention relates to a fixing structure for fixing a circuit board and a case in place, and a control device using the fixing structure. Background technique [0002] As an electronic device mounted on a circuit board, for example, there is a shock sensor for detecting shock. In addition, there is also a shock sensor device that houses a circuit board on which such a shock sensor is mounted in a housing. The shock sensor device detects a shock applied to the device through a shock sensor mounted on the circuit board and outputs a signal according to the shock. [0003] The shock sensor device is used, for example, to control an airbag. In this case, by mounting an airbag ECU to the circuit board together with the impact sensor, an airbag control device for detecting collision of the vehicle and outputting an airbag activation signal is constituted. [0004] 1A and 1B will be used to explain the construction of a prior art air bag control...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R21/16F16B5/00G12B9/00H01R12/00
CPCB60R16/0215B60R16/0239H01R13/74H05K5/0073
Inventor 小山雄史
Owner FUJITSU GENERAL LTD