Smoke sensor
The smoke detector incorporates a flange on the detection cover to prevent foreign matter entry, addressing false alarms by enhancing the seal between the detection cover and substrate, thus improving detection accuracy.
JP7873434B2Active Publication Date: 2026-06-12PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
- Filing Date
- 2022-06-17
- Publication Date
- 2026-06-12
AI Technical Summary
Technical Problem
Existing smoke detectors are susceptible to false detections due to foreign matter entering the detection space through gaps between the optical base and detection cover, which is covered with an insect-proof net.
Method used
A smoke detector design featuring a housing with a suppression unit that includes a flange protruding from the detection cover, contacting the substrate to prevent foreign matter from entering the detection space, thereby reducing the likelihood of false alarms.
Benefits of technology
The design effectively minimizes the entry of foreign matter into the detection space, thereby reducing the chances of false smoke detections without complicating the internal structure of the smoke detector.
✦ Generated by Eureka AI based on patent content.
Smart Images
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Abstract
To provide a smoke sensor capable of reducing a possibility in an error detection due to a foreign material.SOLUTION: A smoke sensor 100 comprises a housing 1, a detection part 20, a partition part 3, a substrate 41, a bottomed cylindrical detection cover 21, and a suppression part 5. The housing 1 has an open part 101 into which smoke can be flown from an external part. The detection part 20 detects smoke of a detect space Sp1 in an inner part of the housing 1. The partition part 3 partitions the inner part of the housing 1. In the substrate 41, the detection part 20 is arranged. The detection cover 21 houses the detection part 20. The suppression part 5 is provided to a peripheral edge of an end part of the detection cover 21 to suppress a foreign material from entering a detection space Sp1 from the external part. The detection space Sp1 is a space formed by the substrate 41 and the detection cover 21. The suppression part 5 is arranged between the substrate 41 and the partition part 3. At least a part of the suppression part 5 contacts the substrate 41.SELECTED DRAWING: Figure 2
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