Air-breathing smoke-sensing fire detector
By designing an aspirating smoke detector, which utilizes an aspirating structure and a smoke sensor to quickly detect smoke concentration, the problem of slow response in traditional fire detectors is solved, enabling rapid alarm and multi-functional integration, while reducing installation complexity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN HUIAN FIRE PROTECTION FACILITIES ENG CO
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-15
AI Technical Summary
Traditional fire detectors struggle to quickly detect minute changes in smoke in the early stages of a fire, leading to delayed alarms and a lack of versatility, which increases installation costs and complexity.
An aspirating smoke detector was designed, which combines a smoke sensor and a light panel. It can quickly detect smoke concentration through an aspirating structure and an air pump, and provide timely alarm in the early stage of a fire. It also has a lighting function, reducing the need for additional equipment installation.
It enables rapid response to initial smoke during a fire, provides timely alarms, increases escape opportunities, and reduces the need for additional equipment installation by incorporating the light panel function.
Smart Images

Figure CN224248178U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a fire detector, specifically an aspirating smoke detector. Background Technology
[0002] Fire detectors are a crucial component of fire safety, designed to detect fires as early as possible and protect lives and property. Traditional fire detectors often use photoelectric or thermal methods for detection. However, in practical applications, traditional fire detectors tend to rely on passively monitoring environmental changes, such as rising temperatures or increased smoke concentration. This method may fail to quickly detect minute changes in smoke in the early stages of a fire, leading to delayed alarm response.
[0003] Most fire detectors only have smoke or temperature detection capabilities and lack other practical functions. Users often need to install additional lighting equipment and alarms, increasing installation costs and complexity. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide an aspirating smoke detector to solve the problems existing in the background art.
[0005] This utility model of aspirating smoke detector is achieved through the following technical solution, including a fire detector body and a lamp panel body;
[0006] The fire detector body is provided with a lamp plate mounting cavity below it, and the lamp plate body is set in the lamp plate mounting cavity and fixed by a cover plate.
[0007] The fire detector body is equipped with an air intake structure, and a smoke sensor is installed at the air intake structure to detect fire smoke.
[0008] As a preferred technical solution, the air intake structure includes a ventilation slot that runs through both ends of the fire detector body and an air pump.
[0009] The air pump is located in the center of the ventilation slot, and the smoke sensor is located at the air inlet or outlet of the air pump to detect smoke in the air.
[0010] As a preferred technical solution, the fire detector body is equipped with a control board, which is connected to the control light board, smoke sensor and air pump for operation; the control board is equipped with a speaker, and when smoke is detected, the control board controls the speaker to sound an alarm.
[0011] During testing, the mainboard controls the air pump to extract air. At the same time, the smoke sensor detects the smoke content in the air and transmits the data to the mainboard, which then determines whether to trigger an alarm.
[0012] As a preferred technical solution, the ventilation slot of the fire detector body is provided with an air inlet at one end and an air outlet at the other end, and both the air inlet and the air outlet are provided with dustproof nets to prevent dust from entering the ventilation slot and damaging the air pump.
[0013] As a preferred technical solution, a positioning seat is provided on the lamp panel mounting cavity, and a magnetic groove is provided on the positioning seat; a positioning post is provided on the cover plate, and a magnetic block is provided at the end of the positioning post.
[0014] When the cover plate is connected to the main body of the fire detector, the magnetic block and the magnetic groove are magnetically attracted and fixed, thereby realizing the installation of the cover plate.
[0015] As a preferred technical solution, a plug-in socket is provided on the top of the fire detector body, and the plug-in socket is plugged into a connector fixed to the ceiling; a wire hole is provided in the center of the connector; the connecting wire of the fire detector body passes through the wire hole and connects to the power cord on the ceiling, thereby realizing power supply.
[0016] The beneficial effects of this utility model are:
[0017] This invention, through its air intake structure, can quickly detect the concentration of smoke in the air; ensuring that the detector can respond rapidly in the early stages of a fire, issue an alarm in a timely manner, and increase the chances of escape.
[0018] This invention combines a smoke sensor and a light panel, allowing it to be used as a lighting fixture in the absence of an alarm, eliminating the need for an additional alarm. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0021] Figure 2 and Figure 3 This is a schematic diagram of the exploded structure of this utility model;
[0022] Figure 4 This is a cross-sectional structural diagram of the present invention.
[0023] Explanation of reference numerals in the attached figures
[0024] 1. Fire detector body; 2. Light panel body; 3. Light panel mounting cavity; 4. Cover plate; 5. Smoke sensor; 6. Ventilation slot; 7. Air pump; 8. Air inlet; 9. Air outlet; 10. Dustproof net; 11. Positioning seat; 12. Magnetic groove; 13. Positioning post; 14. Plug-in socket; 15. Connecting seat; 16. Wiring hole. Detailed Implementation
[0025] All features disclosed in this specification, or steps in all methods or processes disclosed herein, may be combined in any way, except for mutually exclusive features and / or steps.
[0026] like Figures 1-4 As shown, the present invention provides an aspirating smoke detector, which includes a fire detector body 1 and a lamp panel body 2.
[0027] The fire detector body 1 is provided with a lamp plate mounting cavity 3 below it, and the lamp plate body 2 is disposed in the lamp plate mounting cavity 3 and fixed by a cover plate 4.
[0028] The fire detector body 1 is equipped with an air intake structure, and a smoke sensor 5 is installed at the air intake structure to detect fire smoke.
[0029] The air intake structure includes a ventilation slot 6 that runs through both ends of the fire detector body 1 and an air pump 7.
[0030] The air pump 7 is located in the center of the ventilation slot 6, and the smoke sensor 5 is located at the air inlet or outlet of the air pump 7 to detect smoke in the air.
[0031] The fire detector body 1 is equipped with a control board, which is connected to the control light board, smoke sensor 5 and air pump 7 for operation; the control board is equipped with a speaker, which sounds an alarm when smoke is detected.
[0032] During testing, the mainboard controls the air pump 7 to extract air. At the same time, the smoke sensor 5 detects the smoke content in the air and transmits the data to the mainboard, which then determines whether to trigger an alarm.
[0033] In order to facilitate air intake and exhaust, in this embodiment, an air inlet 8 is provided at one end of the ventilation slot 6 of the fire detector body 1, and an air outlet 9 is provided at the other end of the ventilation slot 6. Both the air inlet 8 and the air outlet 9 are provided with dustproof nets 10 to prevent dust from entering the ventilation slot 6 and damaging the air pump 7.
[0034] In order to achieve the effect of magnetic positioning, in this embodiment, a positioning seat 11 is provided on the lamp panel mounting cavity 3, and a magnetic groove 12 is provided on the positioning seat 11; a positioning post 13 is provided on the cover plate 4, and a magnetic block is provided at the end of the positioning post 13.
[0035] When the cover plate 4 is connected to the fire detector body 1, the magnetic block and the magnetic groove 12 are magnetically fixed, thereby realizing the installation of the cover plate 4.
[0036] To facilitate the installation of the fire detector body, in this embodiment, a plug-in socket 14 is provided on the top of the fire detector body 1, and the plug-in socket 14 is plugged into a connecting seat 15 fixed on the ceiling; a wire hole 16 is provided in the center of the connecting seat 15; the connecting wire of the fire detector body 1 passes through the wire hole 16 and connects to the power line on the ceiling, thereby realizing power supply.
[0037] This invention, through its air intake structure, can quickly detect the concentration of smoke in the air; it ensures that the detector can respond quickly in the early stages of a fire, issue an alarm in a timely manner, and increase the chances of escape; by combining the smoke sensor and the light panel, it can be used as a lighting lamp in the absence of an alarm generator, without the need for an additional alarm device.
[0038] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.
Claims
1. An aspirating smoke detector, characterized in that, It includes the main body of the fire detector (1) and the main body of the lamp panel (2); The fire detector body (1) is provided with a lamp plate mounting cavity (3) below it, and the lamp plate body (2) is located in the lamp plate mounting cavity (3) and fixed by a cover plate (4); The fire detector body (1) is provided with an air intake structure, and a smoke sensor (5) is provided at the air intake structure to detect fire smoke.
2. The aspirating smoke detector according to claim 1, characterized in that: The air intake structure includes a ventilation slot (6) that runs through both ends of the fire detector body (1) and an air pump (7); The air pump (7) is located in the center of the ventilation slot (6), and the smoke sensor (5) is located at the air inlet or outlet of the air pump (7) to detect smoke in the air.
3. The aspirating smoke detector according to claim 1, characterized in that: The fire detector body (1) is equipped with a control board, which is connected to the control light board, smoke sensor (5) and air pump (7) for operation; the control board is equipped with a speaker, and when smoke is detected, the control board controls the speaker to sound an alarm.
4. The aspirating smoke detector according to claim 1, characterized in that: The main body (1) of the fire detector has an air inlet (8) at one end of the ventilation slot (6) and an air outlet (9) at the other end. Both the air inlet (8) and the air outlet (9) are equipped with dustproof nets (10) to prevent dust from entering the ventilation slot (6) and damaging the air pump (7).
5. The aspirating smoke detector according to claim 1, characterized in that: The lamp panel mounting cavity (3) is provided with a positioning seat (11), and the positioning seat (11) is provided with a magnetic suction groove (12); the cover plate (4) is provided with a positioning post (13), and the end of the positioning post (13) is provided with a magnetic suction block; When the cover plate (4) is connected to the fire detector body (1), the magnetic block and the magnetic groove (12) are magnetically fixed, thereby realizing the installation of the cover plate (4).
6. The aspirating smoke detector according to claim 1, characterized in that: A connector (14) is provided on the top of the fire detector body (1), and the connector (14) is plugged into a connector (15) fixed on the ceiling; a wire hole (16) is provided in the center of the connector (15); the connecting wire of the fire detector body (1) passes through the wire hole (16) and connects to the power line on the ceiling to achieve power supply.