一种点型烟雾探测器的复合外壳

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By designing a light-blocking and smoke-guiding composite shell, combined with side smoke inlet channels and bottom smoke inlet channels, the problems of low space utilization and insufficient smoke inlet area in existing technologies have been solved, achieving higher detection sensitivity and faster fire response time.

CN224519383UActive Publication Date: 2026-07-17LONGTAN HYDROPOWER DEV CO LTD HESHAN POWER GENERATION CO +1

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: LONGTAN HYDROPOWER DEV CO LTD HESHAN POWER GENERATION CO
Filing Date: 2025-09-04
Publication Date: 2026-07-17

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Abstract

本实用新型的一种点型烟雾探测器的复合外壳，包括隔光导烟复合外壳本体及其内腔体；所述的隔光导烟复合外壳本体侧壁设阻止外部光线进入其内腔体内的侧进烟通道，或 / 和，所述的隔光导烟复合外壳本体底部设阻止外部光线进入其内腔体内的底进烟通道。将带防尘罩的外壳和光学迷宫壳体合二为一为既隔光又导烟的复合外壳，大大地提高了原有带防尘罩的外壳腔体的空间利用率；另外，在隔光导烟复合外壳本体低部增设阻止外部光线进入其内腔体内的底进烟通道2，增强了对低浓度烟雾的探测效果。

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Claims

1. A composite housing for a point-type smoke detector, characterized by: It includes a light-blocking and smoke-guiding composite shell body and its inner cavity; the side wall of the light-blocking and smoke-guiding composite shell body is provided with a side smoke inlet channel to prevent external light from entering its inner cavity, and / or the bottom of the light-blocking and smoke-guiding composite shell body is provided with a bottom smoke inlet channel to prevent external light from entering its inner cavity.

2. The composite enclosure of claim 1, wherein: It also includes a side filter screen installed on the smoke inlet channel.

3. The composite enclosure of claim 1 or 2, wherein: A bottom filter screen is installed on the bottom smoke inlet channel.

4. The composite enclosure of claim 1, wherein The side smoke inlet channel is composed of several side grille strips evenly distributed around the bottom side wall of the light-blocking and smoke-guiding composite shell body. The side grille strips are double herringbone, S-shaped, Z-shaped, or three-section broken lines.

5. The composite enclosure of claim 1 or 2, wherein: The bottom smoke inlet channel is composed of several bottom grid strips evenly distributed in rows along the bottom surface of the light-blocking and smoke-guiding composite shell body. The bottom grid strips are herringbone, S-shaped, Z-shaped, or three-section broken lines.

6. The composite enclosure of claim 4, wherein: The cross-section of the three-section broken line is composed of three line segments, and the included angles between the three line segments from the outside to the inside are 135° and 90°, respectively.

7. The composite enclosure of claim 5, wherein The cross-section of the three-section broken line is composed of three line segments, and the included angles between the three line segments from the outside to the inside are 135° and 90° respectively.

8. The composite enclosure of claim 4, wherein The longitudinal section of the double herringbone shape is composed of two L-shaped end-to-end splicing structures.