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Mechanical switch type safety belt alarm sensor

A technology for mechanical switches and seat belts, which is applied in car seat belts, belt control systems, transportation and packaging, etc., and can solve problems such as high cost, complex structure and process

Pending Publication Date: 2021-05-18
YUXIN TECH SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing seat belt sensors mainly include Hall type and reed switch type. These two types require the use of Hall components, reed switches, magnets and PCB boards, etc. The cost is relatively high, and the structure and process are more complicated.

Method used

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  • Mechanical switch type safety belt alarm sensor
  • Mechanical switch type safety belt alarm sensor
  • Mechanical switch type safety belt alarm sensor

Examples

Experimental program
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specific Embodiment 1

[0039] Such as Figure 4 As shown, the solid line describes that the push rod 2 does not squeeze the first contact piece 31 to the right, and the first contact piece 31 and the second contact piece 32 are not separated. At this time, the flow direction of the entire circuit loop flows along the solid curve , and only the first resistor 41 is in the loop, and the resistance of the entire loop is 100 ohms. The system detects that the seat belt has been inserted, and there is no need to start the alarm; when the push rod 2 moves down to the position of the dotted line, the first contact piece 31 Will be pushed to the position of the dotted line, the first contact piece 31 is separated from the second contact piece 32, at this time the flow direction of the entire circuit loop flows along the dotted curve, the first resistor 41 and the second resistor 42 are all in the loop, The resistance of the entire circuit is 400 ohms, the system detects that the seat belt is not inserted int...

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PUM

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Abstract

A mechanical switch type safety belt alarm sensor relates to the technical field of automobile accessories, can be used for detecting whether a safety belt is inserted into a safety belt buckle or not in the running process of an automobile, and is simple in structure and low in cost. The mechanical switch type safety belt alarm sensor comprises a metal wire frame and a push rod capable of moving relative to the metal wire frame. The metal wire frame is provided with a first contact piece and a second contact piece, and the first contact piece and the second contact piece can move relatively under the action of the push rod so as to be electrically connected or disconnected. When the push rod is located at the first position, the first contact piece is in contact with the second contact piece, and at the moment, a circuit loop comprises a first resistor; when the push rod is located at the second position, the first contact piece is separated from the second contact piece, and at the moment, the circuit loop comprises a first resistor and a second resistor which are connected in series.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to a mechanical switch safety belt alarm sensor. Background technique [0002] The seat belt buckle sensor detects whether the seat belt buckle of the passenger car is inserted in place, and is used for the indication of the seat belt buckle warning indicator light and alarm control. [0003] The existing seat belt sensors mainly include Hall type and reed switch type. These two types require the use of Hall components, reed switches, magnets, and PCB boards. The cost is relatively high, and the structure and process are relatively complicated. [0004] Therefore, how to provide a mechanical switch type seat belt alarm sensor, which can be used to detect whether the seat belt is inserted into the seat belt buckle during vehicle running (if not inserted, it will notify the on-board computer to issue an alarm prompt), and the structure is simple, The low cost has become a technica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R22/48
CPCB60R22/48B60R2022/4816
Inventor 李明郁娇
Owner YUXIN TECH SHANGHAI CO LTD
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