CN113066253A - Temperature-sensing and smoke-sensing two-in-one composite alarm - Google Patents
Temperature-sensing and smoke-sensing two-in-one composite alarm Download PDFInfo
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- CN113066253A CN113066253A CN202110323684.9A CN202110323684A CN113066253A CN 113066253 A CN113066253 A CN 113066253A CN 202110323684 A CN202110323684 A CN 202110323684A CN 113066253 A CN113066253 A CN 113066253A
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- base shell
- shell
- smoke
- photosensitive element
- infrared light
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
- G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
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- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fire-Detection Mechanisms (AREA)
Abstract
The invention discloses a temperature-sensing and smoke-sensing two-in-one composite alarm which comprises a base shell, wherein the base shell is of a two-section structure, the two sections are fixedly connected through bolts, a top shell is arranged above the base shell and is fixedly connected with the base shell through a plurality of supports arranged in an annular array, a black cover plate is arranged at the middle position of the inner side of the top shell, an infrared light source and a photosensitive element are symmetrically arranged above the bottom end of the black cover plate in the center, and an address encoder is arranged inside the base shell and is electrically connected with the infrared light source and the photosensitive element respectively. According to the invention, the infrared light source and the photosensitive element information are analyzed through the chip, so that different types of fire smoke can be sensed more effectively, the integrated circuit is adopted to analyze the fire mode, human errors are avoided, the smoke generated by fire is detected by utilizing light scattering, and an alarm signal is sent out in time by matching with the photosensitive element.
Description
Technical Field
The invention relates to the technical field of fire alarms, in particular to a temperature-sensing and smoke-sensing combined alarm.
Background
With the increase of the modern household fire and the electricity consumption, the frequency of the household fire is higher and higher. Once a family fire happens, adverse factors such as untimely fire suppression, lack of fire extinguishing equipment, scare and misbehavior of bystanders, slow escape and the like easily occur, and finally, serious life and property loss is caused. The characteristics and fire prevention strategies of the family fire are discussed, and the method has practical significance for preventing the family fire and reducing the fire loss.
In many later forms of fire, part of the fire only has smoke dust to a certain extent in the earlier stage, and does not have great threat, and does not have higher temperature at the moment, but if the fire is not found in time, the differential temperature type sensor can be triggered when the fire becomes larger, the alarm at the moment can start to alarm, but the fire is larger at the moment, and the fire can be extinguished only by a fire extinguisher, so that the fire can be found more in time.
Disclosure of Invention
The invention aims to: the temperature-sensing and smoke-sensing two-in-one composite alarm is provided for solving the problem that the existing fire alarm is not timely enough in alarm.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a two unification compound alarms of temperature sensing and smoke sensing, includes the base shell, and the base shell is two segmentation structures, through bolt fixed connection between two sections, the top of base shell is provided with a shell, and fixed connection between a plurality of supports that the shell set up through annular array and the base shell, be provided with bee calling organ between base shell and the shell, the inboard intermediate position of shell that pushes up is provided with black cover plate, and the bottom top central symmetry of black cover plate is provided with infrared source and photosensitive element, the inside of base shell is provided with address encoder, and address encoder respectively with infrared source and photosensitive element between electric connection.
As a further description of the above technical solution:
the black cover plate is of a conical structure, the included angle of the tip end of the black cover plate is 150 degrees, and the axes of the infrared light source and the photosensitive element are both parallel to the bus of the black cover plate.
As a further description of the above technical solution:
the inside of base shell is provided with transmitting circuit and receiving circuit, and transmitting circuit and infrared light source and the equal electric connection of address encoder, all electric connection between receiving circuit and photosensitive element and the address encoder.
As a further description of the above technical solution:
an outer mesh enclosure is fixedly connected between the top shell and the base shell, and an inner mesh enclosure is fixedly connected on the inner side of the outer mesh enclosure.
As a further description of the above technical solution:
holes are formed in the outer net cover and the inner net cover, and the diameter of the holes in the outer net cover is larger than that of the holes in the inner net cover.
As a further description of the above technical solution:
one side of the address encoder is provided with a chip electrically connected with the circuit board, a differential constant temperature detector is arranged between the base shell and the top shell, the differential constant temperature detector is positioned on one side of the black cover plate, and the differential constant temperature detector is electrically connected with the chip.
As a further description of the above technical solution:
the top shell is provided with a circular through hole, the top of the differential constant temperature detector is provided with a thermistor, and the thermistor is positioned on the inner side of the circular through hole and is in contact with the outside air.
As a further description of the above technical solution:
the base shell is provided with an indicator lamp, one side of the base shell is provided with a plug wire groove, a wire harness is inserted into the plug wire groove, and the wire harness is electrically connected with an external power supply.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
according to the invention, information of the infrared light source and the photosensitive element is analyzed through the chip, different types of fire smoke can be sensed more effectively, the integrated circuit is adopted to analyze a fire mode, artificial errors are avoided, the smoke generated by fire is detected by light scattering, and an alarm signal is sent out in time by matching with the photosensitive element.
Drawings
FIG. 1 is a top view of an embodiment of a combination temperature and smoke alarm of the present invention;
FIG. 2 is a front view of an embodiment of a composite temperature and smoke alarm of the present invention;
FIG. 3 is an internal structure diagram of the temperature and smoke sensing combined alarm of the present invention;
fig. 4 is a block diagram of a smoke sensing process provided by an embodiment of a temperature sensing and smoke sensing combined alarm of the present invention.
Illustration of the drawings:
1. a base housing; 2. a top shell; 3. a thermistor; 4. an indicator light; 5. a support; 6. a wire inserting groove; 7. a wire harness; 8. an outer mesh enclosure; 9. an inner mesh enclosure; 10. a black mask plate; 11. an infrared light source; 12. a photosensitive element; 13. a differential constant temperature detector; 14. a buzzer; 15. a transmitting circuit; 16. a receiving circuit; 17. an address encoder; 18. and (3) a chip.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the first embodiment, please refer to fig. 1-4, a two-in-one composite alarm for temperature sensing and smoke sensing comprises a base housing 1, the base housing 1 is a two-segment structure, the two segments are fixedly connected by bolts, a top housing 2 is disposed above the base housing 1, the top housing 2 is fixedly connected with the base housing 1 by a plurality of brackets 5 arranged in an annular array, a buzzer 14 is disposed between the base housing 1 and the top housing 2, an outer mesh 8 is fixedly connected between the top housing 2 and the base housing 1, an inner mesh 9 is fixedly connected to the inner side of the outer mesh 8, holes are disposed on the outer mesh 8 and the inner mesh 9, the diameter of the hole on the outer mesh 8 is larger than that of the hole on the inner mesh 9, a black cover plate 10 is disposed at the middle position of the inner side of the top housing 2 by disposing the outer mesh 8 and the inner mesh 9, and an infrared light source 11 and a photosensitive element 12 are symmetrically disposed above the bottom end of the black cover plate 10, the black cover plate 10 is a conical structure, the included angle of the tip end of the black cover plate 10 is 150 degrees, the axes of the infrared light source 11 and the photosensitive element 12 are both arranged parallel to the bus of the black cover plate 10, the address encoder 17 is arranged inside the base shell 1, the address encoder 17 is respectively and electrically connected with the infrared light source 11 and the photosensitive element 12, the photosensitive element 12 adopts an anti-electromagnetic interference element, the transmitting circuit 15 and the receiving circuit 16 are arranged inside the base shell 1, the transmitting circuit 15 is electrically connected with the infrared light source 11 and the address encoder 17, the receiving circuit 16 is electrically connected with the photosensitive element 12 and the address encoder 17, when fire disaster detection is carried out, the infrared light source 11 generates infrared light, the infrared light beam is scattered by smoke ions and is sensed by the photosensitive element 12, because the intensity of scattered light is in direct proportion with the concentration of smoke, when the concentration of smoke is large, the infrared light beam of the photosensitive element 12 is weak, the pulse signal is converted into an electric signal by the photosensitive element 12 at the moment, the electric signal is transmitted to the address encoder 17, the electric signal is converted into an electric signal again after the electric signal is translated in the address encoder 17, the electric signal is transmitted to the buzzer 14, and the buzzer gives an alarm at the moment, namely the fire alarm operation is completed.
In the second embodiment, please refer to fig. 1-4, a temperature-sensing and smoke-sensing two-in-one composite alarm device includes a base housing 1, the base housing 1 is a two-segment structure, the two segments are fixedly connected by bolts, a top housing 2 is disposed above the base housing 1, the top housing 2 is fixedly connected with the base housing 1 by a plurality of brackets 5 arranged in an annular array, a buzzer 14 is disposed between the base housing 1 and the top housing 2, a black cover plate 10 is disposed at the middle position of the inner side of the top housing 2, an infrared light source 11 and a photosensitive element 12 are disposed above the bottom end of the black cover plate 10 in a central symmetry manner, an address encoder 17 is disposed inside the base housing 1, the address encoder 17 is respectively electrically connected with the infrared light source 11 and the photosensitive element 12, a chip 18 electrically connected with a circuit board is disposed on one side of the address encoder 17, a differential temperature detector 13 is disposed between the base housing 1 and the top housing 2, the differential constant temperature detector 13 is positioned at one side of the black cover plate 10, the differential constant temperature detector 13 is electrically connected with the chip 18, a circular through hole is arranged on the top shell 2, the thermistor 3 is arranged at the top of the differential constant temperature detector 13, the thermistor 3 is positioned at the inner side of the circular through hole and is contacted with the outside air, when fire breaks out and the temperature rises, the thermistor 3 senses the temperature and then directly triggers the buzzer 14 to alarm, or when the external temperature rises rapidly, the differential temperature type fire detector is triggered, the buzzer 14 is also triggered to give an alarm, the differential constant temperature type base shell 1 is provided with the indicating lamp 4, one side of the base shell 1 is provided with the plug wire slot 6, and the wiring harness 7 is inserted in the inserting groove 6, the wiring harness 7 is electrically connected with an external power supply, and the wiring harness 7 is connected with the external power supply to supply power to the device.
The working principle is as follows: when fire disaster detection is carried out, infrared light rays are generated by the infrared light source 11, infrared light beams are scattered by smoke dust ions and are perceived by the photosensitive element 12, the intensity of scattered light is in direct proportion to the concentration of smoke, when the concentration of the smoke is high, the infrared light beams of the photosensitive element 12 are weak, pulse signals are converted into electric signals by the photosensitive element 12 at the moment and are transmitted into the address encoder 17, the electric signals are converted into electric signals again after being translated in the address encoder 17 and are transmitted to the buzzer 14, the buzzer alarms at the moment, namely, fire disaster alarming operation is completed, when fire disaster occurs and the temperature rises, the temperature is perceived by the thermistor 3, the buzzer 14 is directly triggered to alarm, or when the external temperature rises rapidly, the differential fire disaster detector is triggered, and the buzzer 14 is also triggered to alarm.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A temperature-sensing and smoke-sensing two-in-one composite alarm comprises a base shell (1), wherein the base shell (1) is of a two-section structure, the two sections are fixedly connected through bolts, a top shell (2) is arranged above the base shell (1), the top shell (2) is fixedly connected with the base shell (1) through a plurality of brackets (5) arranged in an annular array, a buzzer (14) is arranged between the base shell (1) and the top shell (2), it is characterized in that a black cover plate (10) is arranged at the middle position of the inner side of the top shell (2), an infrared light source (11) and a photosensitive element (12) are arranged above the bottom end of the black mask plate (10) in a central symmetry manner, an address encoder (17) is arranged in the base shell (1), and the address encoder (17) is respectively electrically connected with the infrared light source (11) and the photosensitive element (12).
2. The two-in-one composite alarm for temperature and smoke sensing according to claim 1, wherein the black cover plate (10) is of a conical structure, the included angle of the tip end of the black cover plate (10) is 150 degrees, and the axes of the infrared light source (11) and the photosensitive element (12) are arranged in parallel to the generatrix of the black cover plate (10).
3. The two-in-one composite alarm for temperature and smoke sensing according to claim 1, wherein a transmitting circuit (15) and a receiving circuit (16) are arranged inside the base shell (1), the transmitting circuit (15) is electrically connected with the infrared light source (11) and the address encoder (17), and the receiving circuit (16) is electrically connected with the photosensitive element (12) and the address encoder (17).
4. The two-in-one composite alarm for temperature and smoke sensing according to claim 1, wherein an outer mesh enclosure (8) is fixedly connected between the top shell (2) and the base shell (1), and an inner mesh enclosure (9) is fixedly connected to the inner side of the outer mesh enclosure (8).
5. The combination alarm of claim 4, wherein the outer mesh (8) and the inner mesh (9) are provided with holes, and the diameter of the holes on the outer mesh (8) is larger than that of the holes on the inner mesh (9).
6. The two-in-one composite alarm for temperature and smoke sensing according to claim 1, wherein a chip (18) electrically connected with the circuit board is arranged on one side of the address encoder (17), the differential constant temperature detector (13) is arranged between the base shell (1) and the top shell (2), the differential constant temperature detector (13) is positioned on one side of the black cover plate (10), and the differential constant temperature detector (13) is electrically connected with the chip (18).
7. The two-in-one composite alarm for temperature and smoke according to claim 6, wherein a circular through hole is formed in the top shell (2), the thermistor (3) is arranged at the top of the differential constant temperature detector (13), and the thermistor (3) is positioned at the inner side of the circular through hole and is in contact with the outside air.
8. The two-in-one composite alarm for temperature and smoke sensing according to claim 1, wherein an indicator lamp (4) is arranged on the base shell (1), a plug wire slot (6) is arranged on one side of the base shell (1), a wire harness (7) is inserted into the plug wire slot (6), and the wire harness (7) is electrically connected with an external power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110323684.9A CN113066253A (en) | 2021-03-26 | 2021-03-26 | Temperature-sensing and smoke-sensing two-in-one composite alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110323684.9A CN113066253A (en) | 2021-03-26 | 2021-03-26 | Temperature-sensing and smoke-sensing two-in-one composite alarm |
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| Publication Number | Publication Date |
|---|---|
| CN113066253A true CN113066253A (en) | 2021-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110323684.9A Pending CN113066253A (en) | 2021-03-26 | 2021-03-26 | Temperature-sensing and smoke-sensing two-in-one composite alarm |
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| CN (1) | CN113066253A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115915588A (en) * | 2022-11-08 | 2023-04-04 | 苏州浪潮智能科技有限公司 | A kind of PCB board and server |
| US12437622B2 (en) | 2022-03-04 | 2025-10-07 | Kidde Fire Protection, Llc | Smoke alarm with offset detection chamber and shield |
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2021
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12437622B2 (en) | 2022-03-04 | 2025-10-07 | Kidde Fire Protection, Llc | Smoke alarm with offset detection chamber and shield |
| CN115915588A (en) * | 2022-11-08 | 2023-04-04 | 苏州浪潮智能科技有限公司 | A kind of PCB board and server |
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Application publication date: 20210702 |