一种高可靠性的氢气浓度传感器
By employing a three-layer waterproof filter structure and a waterproof and breathable design in the hydrogen sensor, the problems of fatigue and condensation in the sealing structure of the electronic module are solved, thereby improving the reliability and stability of the product.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YIWEI SEMICON TECH (SHANGHAI) CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-07-17
AI Technical Summary
Existing hydrogen sensors are prone to fatigue failure due to the sealing structure of the electronic module and the outer shell rubber ring, and the lack of internal waterproof and breathable design leads to condensation problems, affecting product reliability.
It adopts a three-layer waterproof filtration structure and waterproof and breathable design, including waterproof and breathable membranes on the shell, back cover and fixing block, forming a multi-layer sealing and breathable structure to avoid deformation of the electronic module under stress and prevent condensation when the temperature changes.
This improves the reliability of the hydrogen concentration sensor, prevents structural fatigue and condensation problems, and enhances the long-term stability of the product.
Smart Images
Figure CN224518692U_ABST
Abstract
Claims
1. A hydrogen concentration sensor with high reliability, characterized by, Includes housing, back cover, mounting block, electronic module, and sensors. The housing is provided with an air inlet, and the rear cover is provided with a vent; the housing and the rear cover can be sealed together to form a cavity inside. The sensor is mounted on the electronic module to form an electronic module assembly, and the electronic module assembly is housed inside the housing; the fixing block is disposed between the housing and the electronic module assembly, and can seal the air inlet on the housing and the sensor, forming a sealed air passage between the air inlet on the housing and the sensor; The air inlet on the housing, the vent on the rear cover, and the fixing block are all equipped with waterproof and breathable structures.
2. The high-reliability hydrogen concentration sensor according to claim 1, characterized by, The housing is rectangular in shape, with a protrusion at the top of the cover forming a boss. The boss is hollow in the middle and has an air inlet.
3. The high-reliability hydrogen concentration sensor according to claim 2, characterized by, The end of the cover wall of the housing away from the top of the cover is provided with an annular fixing groove, which allows the rear cover to be inserted. A first sealing ring is provided in the annular fixing groove, and the first seal can form a seal between the rear cover and the housing.
4. The high-reliability hydrogen concentration sensor according to any one of claims 1 to 3, characterized by, The air inlet is provided with a first waterproof and breathable membrane to form a waterproof and breathable structure.
5. The high-reliability hydrogen concentration sensor according to claim 2, characterized by, The fixing block is tubular in shape and hollow inside. One end can be inserted into the protrusion formed by the housing and connect with the air inlet on the housing. The other end can accommodate the sensor.
6. The high-reliability hydrogen concentration sensor according to claim 5, characterized in that, A second waterproof and breathable membrane is provided on the opening where the fixing block connects to the air inlet on the housing to form a waterproof and breathable structure.
7. The high-reliability hydrogen concentration sensor according to claim 1, characterized by, The vent on the rear cover is provided with a third waterproof and breathable membrane to form a waterproof and breathable structure.
8. The high-reliability hydrogen concentration sensor according to claim 1, characterized by, The rear cover has an annular lower edge corresponding to the annular fixing groove at the end of the housing. The annular lower edge is inserted into the fixing groove and abuts against the first sealing ring in the fixing groove for sealing.
9. The high-reliability hydrogen concentration sensor according to claim 1, characterized by, The rear cover and the housing are connected by a detachable snap-fit.