CN120048090A - Flame detector with self-checking function - Google Patents
Flame detector with self-checking function Download PDFInfo
- Publication number
- CN120048090A CN120048090A CN202510494916.5A CN202510494916A CN120048090A CN 120048090 A CN120048090 A CN 120048090A CN 202510494916 A CN202510494916 A CN 202510494916A CN 120048090 A CN120048090 A CN 120048090A
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- Prior art keywords
- circuit board
- self
- shell body
- infrared
- checking function
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/12—Checking intermittently signalling or alarm systems
- G08B29/14—Checking intermittently signalling or alarm systems checking the detection circuits
- G08B29/145—Checking intermittently signalling or alarm systems checking the detection circuits of fire detection circuits
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire-Detection Mechanisms (AREA)
- Fire Alarms (AREA)
Abstract
本发明公开了一种具备自检功能火焰探测器，属于火焰探测技术领域，一种具备自检功能火焰探测器，包括外壳本体和固定于外壳本体顶部的壳盖，所述外壳本体的底部通过螺栓固定有底座，所述外壳本体内部设置有双层电路板，且双层电路板固定于底座的顶部，所述壳盖的中心位置安装有光学镜片，它可以利用红外发光管和两个红外传感器组成的反射装置，并将其置于外壳本体内部，有效规避了由于窗口灰尘积聚、环境光线强度变化等因素带来的漏检和误报风险，同时将红外发光管定期发送一个模拟火焰引起的红外信号替代明火的红外光源，提高其自动化程度，减少了人工干预，使检测的时候操作更简便，提高了火灾探测器的安全性和可靠性。
The invention discloses a flame detector with a self-checking function, belonging to the technical field of flame detection. The flame detector with a self-checking function comprises a shell body and a shell cover fixed to the top of the shell body, the bottom of the shell body is fixed with a base by bolts, a double-layer circuit board is arranged inside the shell body, and the double-layer circuit board is fixed to the top of the base, an optical lens is installed at the center of the shell cover, and a reflecting device composed of an infrared light-emitting tube and two infrared sensors is utilized, and the reflecting device is placed inside the shell body, thereby effectively avoiding the risk of missed detection and false alarm caused by factors such as dust accumulation on the window and changes in the intensity of ambient light, and at the same time, the infrared light-emitting tube periodically sends an infrared signal caused by a simulated flame to replace the infrared light source of an open flame, thereby improving its automation level, reducing manual intervention, making the operation easier during detection, and improving the safety and reliability of the fire detector.
Description
Technical Field
The invention relates to the technical field of flame detection, in particular to a flame detector with a self-checking function.
Background
At present, the flame detector plays an important role in fire protection of a fire disaster, and because the flame at the initial stage of the fire disaster contains ultraviolet rays and infrared rays which are indistinguishable by naked eyes and have different wavelengths, the fire condition can be timely detected through the flame detector, the spread of the fire condition is effectively prevented, and the loss caused by the fire disaster is reduced.
Flame detectors, also known as photosensitive fire detectors, are used to respond to the optical characteristics of a fire, and when a substance burns, it produces smoke and emits heat, and at the same time, also produces invisible light radiation, visible or not in the atmosphere, which is detected by the flame detector, wherein the alarm function is achieved by means of detection of infrared light-splitting rays, known as infrared flame detectors.
Based on the above, the inventor finds that the existing flame detector is limited by the technical level and is influenced by the environment such as temperature and humidity, and faults or false alarms are easy to generate. The method for detecting the flame detector with the self-checking function has the advantages that certain defects generally exist in the production industry, such as the detection possibly cannot completely cover all possible fault conditions, the detector is at risk of missed detection, a large amount of manpower and time resources are consumed in field test, and meanwhile, inspection staff are affected by the safety caused by the inspection environment and the faults of the system, so that the method is researched and improved aiming at the existing structure, and the purpose of achieving more practical value is achieved.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems existing in the prior art, the invention aims to provide the flame detector with the self-checking function, which can utilize the reflecting device consisting of the infrared luminous tube and the two infrared sensors and place the reflecting device in the shell body, so that the risks of missing checking and false alarm caused by factors such as dust accumulation in a window, change in the intensity of ambient light and the like are effectively avoided, meanwhile, the infrared luminous tube is periodically transmitted to a infrared signal which simulates flame to replace an infrared light source of open flame, the degree of automation is improved, the manual intervention is reduced, the operation is simpler and more convenient in the detection process, and the safety and the reliability of the fire detector are improved.
2. Technical proposal
In order to solve the problems, the invention adopts the following technical scheme.
The flame detector with the self-checking function comprises a shell body and a shell cover fixed at the top of the shell body, wherein a base is fixed at the bottom of the shell body through bolts, a double-layer circuit board is arranged in the shell body and is fixed at the top of the base, and an optical lens is arranged at the center of the shell cover;
the double-layer circuit board comprises an upper-layer circuit board and a lower-layer circuit board, wherein the upper-layer circuit board and the lower-layer circuit board are electrically connected through wires, a signal lamp, an infrared luminous tube and two infrared sensors are arranged on the upper surface of the upper-layer circuit board, and the two infrared sensors are symmetrically arranged on two sides of the infrared luminous tube.
Further, the infrared luminotron includes the cylinder pipe of being fixed in upper circuit board top central point, the inside of cylinder pipe inlays and is equipped with infrared luminous source, the top fixedly connected with reflection of light baffle of cylinder pipe.
Further, the top of the cylindrical tube is fixedly connected with a light blocking cover, and the light blocking cover is of a non-conductive light blocking structure and is made of a rigid material.
Further, openings are formed in two sides of the light blocking cover, and the opening direction corresponds to the infrared sensor.
Further, pins of the signal lamp, the infrared luminous tube and the two infrared sensors are welded to corresponding bonding pads on the lower surface of the upper circuit board in sequence, and the distance between the pins is 5 mm.
Further, the upper layer circuit board and the lower layer circuit board are arranged in parallel up and down and are fixed above the base through screws.
Further, an inner die is arranged inside the shell body and fixedly connected with the inner side wall of the shell body.
Further, the external screw thread has been seted up to shell body upper end periphery, the internal screw thread of adaptation has been seted up to cap lower extreme inside wall, shell body upper end and cap lower extreme inside wall pass through external screw thread and internal screw thread cooperation threaded connection.
Further, an observation hole matched with the optical lens is formed in the center of the top of the shell cover, and the optical lens is embedded in the observation hole and fixedly connected with the shell cover by adopting adhesive.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) According to the scheme, through the arrangement of the infrared luminous tubes, under the cooperation of the two infrared sensors, the infrared luminous tubes can regularly send infrared signals caused by simulated flames, signals of the infrared luminous tubes are directly radiated on the infrared sensors through the reflecting baffles, then the infrared sensors transmit the received signals to the double-layer circuit board for signal processing, so that an infrared light source of open fire can be replaced, the automatic self-checking system reduces manual intervention, the degree of automation is high, the operation is simpler and more convenient in detection, and the safety and reliability of the fire detector are improved.
(2) According to the scheme, the reflecting device formed by the infrared luminous tube and the two infrared sensors is arranged inside the detector shell body, and the optical lens on the shell cover is utilized for observation, so that the risks of missed detection and false alarm caused by factors such as window dust accumulation, environmental light intensity change and the like are effectively avoided.
Drawings
FIG. 1 is a schematic diagram of an overall split structure of the present invention;
FIG. 2 is a schematic side view of an upper circuit board according to the present invention;
FIG. 3 is a schematic top view of the upper circuit board of the present invention;
FIG. 4 is a schematic view of the internal structure of an infrared light-emitting tube according to the present invention;
Fig. 5 is a schematic diagram of the radiation mechanism of the infrared light emitting tube and the infrared sensor according to the present invention.
The reference numerals in the figures illustrate:
1. A housing body;
2. A cover;
3. A base;
4. a double-layer circuit board, 401, an upper layer circuit board, 402, a lower layer circuit board;
5. an optical lens;
6. A signal lamp;
7. The infrared luminous tube comprises an infrared luminous tube 701, a cylindrical tube 702, an infrared luminous source 703, a reflecting baffle plate 704, a light blocking cover 705 and an opening;
8. An infrared sensor;
9. An inner mold;
10. and (5) observing the hole.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present invention are within the scope of the present invention.
Examples:
referring to fig. 1-5, a flame detector with self-checking function includes a housing body 1 and a housing cover 2 fixed on the top of the housing body 1, a base 3 is fixed on the bottom of the housing body 1 through bolts, a double-layer circuit board 4 is arranged inside the housing body 1, the double-layer circuit board 4 is fixed on the top of the base 3, and an optical lens 5 is installed in the center of the housing cover 2;
The double-layer circuit board 4 comprises an upper circuit board 401 and a lower circuit board 402, and the upper circuit board 401 and the lower circuit board 402 are electrically connected through wires, wherein the lower circuit board 402 is a main control board and can be used for signal processing, a signal lamp 6, an infrared luminous tube 7 and two infrared sensors 8 are arranged on the upper surface of the upper circuit board 401, the two infrared sensors 8 are symmetrically arranged on two sides of the infrared luminous tube 7, when the double-layer circuit board is used, infrared signals caused by simulated flame can be periodically sent by the infrared luminous tube 7, the signals can be directly radiated on the infrared sensors 8, an infrared light source of open flame can be replaced, the automatic self-checking system reduces manual intervention, the operation is simpler and more convenient when in detection, the safety and reliability of the fire detector are improved, and meanwhile, the leakage detection and false alarm risks caused by factors such as window dust accumulation and environmental light intensity change can be effectively avoided.
Referring to fig. 4, the infrared light emitting tube 7 includes a cylindrical tube 701 fixed at the top center of the upper circuit board 401, an infrared light emitting source 702 is embedded in the cylindrical tube 701, and a reflective baffle 703 is fixedly connected to the top end of the cylindrical tube 701.
Referring to fig. 4, a light blocking cover 704 is fixedly connected to the top of the cylindrical tube 701, the light blocking cover 704 is a non-conductive light blocking structure and is made of a rigid material, wherein the rigid material can be one of plastics or metals, openings 705 are formed in two sides of the light blocking cover 704, and the directions of the openings 705 correspond to those of the infrared sensors 8, and when in use, the light blocking cover 704 adopts the non-conductive light blocking structure, and the openings 705 are formed in two sides, so that the purpose is to reduce the interference of infrared radiation except the sensors as far as possible and to stabilize the signal transmission.
Referring to fig. 2, pins of the signal lamp 6, the infrared light emitting tube 7 and the two infrared sensors 8 are sequentially welded to corresponding pads on the lower surface of the upper circuit board 401, and are respectively spaced apart by 5 mm.
Referring to fig. 1, an upper circuit board 401 and a lower circuit board 402 are disposed in parallel up and down, and are fixed above a base 3 by screws.
Referring to fig. 1, an inner mold 9 is arranged inside a housing body 1, and the inner mold 9 is fixedly connected with the inner side wall of the housing body 1, and when the housing is used, the waterproof and dust-proof effects can be achieved through the arrangement of the inner mold 9, so that the overall sealing performance of the housing is improved.
Referring to fig. 1, an external thread is provided on the outer periphery of the upper end of the housing body 1, an adaptive internal thread is provided on the inner sidewall of the lower end of the housing cover 2, and the upper end of the housing body 1 is in threaded connection with the inner sidewall of the lower end of the housing cover 2 through the external thread and the internal thread.
Referring to fig. 1, an observation hole 10 adapted to an optical lens 5 is formed in the center of the top of a casing cover 2, the optical lens 5 is embedded in the observation hole 10 and fixedly connected with the casing cover 2 by adopting adhesive, and when the casing is used, the observation of a signal lamp 6 in the casing body 1 can be facilitated by installing the optical lens 5 in the observation hole 10.
The working principle is that firstly, a signal lamp 6, an infrared luminous tube 7 and two infrared sensors 8 are mounted on the upper surface of an upper circuit board 401, pins of the signal lamp 6, the infrared luminous tube 7 and the two infrared sensors 8 are sequentially welded on corresponding bonding pads on the lower surface of the upper circuit board 401, the distance between the infrared luminous tube 7 and the two infrared sensors 8 is 5 mm, at the moment, the infrared luminous tube 7 is set in the center of the upper circuit board 401, the double-layer circuit board 4 is mounted on a base 3, then the whole body of the double-layer circuit board is fixedly connected with a shell body 1, finally, a shell cover 2 is mounted on the top of the shell body 1, in the use process, a power supply is turned on, infrared luminous tubes 7 are utilized to periodically send infrared signals caused by simulated flame, signals of the infrared luminous tube are directly radiated on the infrared sensors 8 through a reflecting baffle 703, then the infrared sensors 8 transmit the received signals on the double-layer circuit board 4, the lower circuit board 402 of the double-layer circuit board 4 performs signal processing, and self-detection is achieved.
It should finally be noted that in the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or in communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present invention, and the technical solution and the improvement thereof are all covered by the protection scope of the present invention.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510494916.5A CN120048090A (en) | 2025-04-21 | 2025-04-21 | Flame detector with self-checking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510494916.5A CN120048090A (en) | 2025-04-21 | 2025-04-21 | Flame detector with self-checking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN120048090A true CN120048090A (en) | 2025-05-27 |
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ID=95757873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202510494916.5A Pending CN120048090A (en) | 2025-04-21 | 2025-04-21 | Flame detector with self-checking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN120048090A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203036382U (en) * | 2012-03-14 | 2013-07-03 | 安徽海德照明科技有限公司 | Indoor multifunctional light-emitting diode (LED) wall lamp |
| CN206572252U (en) * | 2017-03-13 | 2017-10-20 | 东莞市高龙电子科技有限公司 | The adjustable LED energy-conservations ball bulb of irradiating angle |
| CN210836479U (en) * | 2020-01-10 | 2020-06-23 | 上海客欧电子科技有限公司 | Protective infrared detector for fire alarm |
| CN116399827A (en) * | 2023-03-17 | 2023-07-07 | 青岛澳瑞德电子有限公司 | A gas concentration infrared sensor |
| CN118424460A (en) * | 2024-04-26 | 2024-08-02 | 苏州谱融传感科技有限公司 | Flame detector and its calibration and analysis system based on artificial intelligence |
| CN221504821U (en) * | 2023-12-04 | 2024-08-09 | 合肥无垠半导体科技有限公司 | High-brightness LED |
| CN120108119A (en) * | 2025-03-04 | 2025-06-06 | 上海师范大学 | A flame detector based on high Curie point relaxor ferroelectric single crystal |
-
2025
- 2025-04-21 CN CN202510494916.5A patent/CN120048090A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203036382U (en) * | 2012-03-14 | 2013-07-03 | 安徽海德照明科技有限公司 | Indoor multifunctional light-emitting diode (LED) wall lamp |
| CN206572252U (en) * | 2017-03-13 | 2017-10-20 | 东莞市高龙电子科技有限公司 | The adjustable LED energy-conservations ball bulb of irradiating angle |
| CN210836479U (en) * | 2020-01-10 | 2020-06-23 | 上海客欧电子科技有限公司 | Protective infrared detector for fire alarm |
| CN116399827A (en) * | 2023-03-17 | 2023-07-07 | 青岛澳瑞德电子有限公司 | A gas concentration infrared sensor |
| CN221504821U (en) * | 2023-12-04 | 2024-08-09 | 合肥无垠半导体科技有限公司 | High-brightness LED |
| CN118424460A (en) * | 2024-04-26 | 2024-08-02 | 苏州谱融传感科技有限公司 | Flame detector and its calibration and analysis system based on artificial intelligence |
| CN120108119A (en) * | 2025-03-04 | 2025-06-06 | 上海师范大学 | A flame detector based on high Curie point relaxor ferroelectric single crystal |
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Application publication date: 20250527 |
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| RJ01 | Rejection of invention patent application after publication |