CN220473306U - Miniaturized infrared smoke sensor - Google Patents
Miniaturized infrared smoke sensor Download PDFInfo
- Publication number
- CN220473306U CN220473306U CN202321909249.5U CN202321909249U CN220473306U CN 220473306 U CN220473306 U CN 220473306U CN 202321909249 U CN202321909249 U CN 202321909249U CN 220473306 U CN220473306 U CN 220473306U
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- Prior art keywords
- shell
- infrared
- stage
- smoke sensor
- miniaturized
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- 239000000779 smoke Substances 0.000 title claims abstract description 41
- 238000012545 processing Methods 0.000 claims abstract description 16
- 230000003287 optical effect Effects 0.000 claims abstract description 9
- 238000005192 partition Methods 0.000 claims description 16
- 230000007306 turnover Effects 0.000 claims description 6
- 230000002745 absorbent Effects 0.000 claims description 3
- 239000002250 absorbent Substances 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 3
- 235000019504 cigarettes Nutrition 0.000 abstract description 2
- 238000005457 optimization Methods 0.000 abstract 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 9
- 229910052744 lithium Inorganic materials 0.000 description 9
- 239000002245 particle Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000004887 air purification Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The utility model discloses a miniaturized infrared smoke sensor, and belongs to the technical field of smoke sensors. The LED lamp comprises a shell, wherein a signal processing plate which is detachably connected is arranged at the lower end of the shell, an LED adapter plate which is detachably connected is arranged on one side of the shell, an infrared LED lamp source is arranged on the LED adapter plate, a photosensitive diode is arranged on the signal processing plate and penetrates through the bottom of the shell, a smoke inlet channel which is communicated is arranged on the front side and the rear side of the shell, an optical trap is arranged on the left side of the shell, an infrared light inlet window is arranged on the right side of the shell, and the optical trap is positioned inside the shell. The application provides a miniaturized infrared smoke sensor, has used the optical path design of optimization, has established the cigarette room that advances of great volume to and small-size light trap room, realized miniaturization, high accuracy measurement, and have the smoke sensor of high stability.
Description
Technical Field
The utility model relates to a miniaturized infrared smoke sensor, and belongs to the technical field of smoke sensors.
Background
The development of twenty-first century can be called as the "green environment-friendly" era, people are paying more attention to energy conservation and living environment and environmental protection. The emission pollution of fuel oil and tail gas is one of main pollution sources of urban atmosphere pollution, therefore, because the electric vehicle is environment-friendly and low in energy consumption, the best traffic product of environment-friendly and air purification pollution is obtained, how to provide a good safety use environment problem for masses is also scheduled, a lithium battery is one of more common battery types, when the lithium battery is at risk of thermal runaway, the battery can separate out trace smoke, and when the thermal runaway occurs, a large amount of smoke can be generated, so that whether the lithium battery is thermally out of control can be effectively judged by measuring the concentration of smoke in a battery pack, and the existing infrared smoke sensor is large in size and unfavorable for miniaturized integration and use. Therefore, development of a miniaturized infrared smoke sensor is needed to be solved.
Disclosure of Invention
The present utility model addresses the deficiencies of the prior art described above by providing a miniaturized infrared smoke sensor.
The technical scheme for solving the technical problems is as follows:
the utility model provides a miniaturized infrared smoke sensor, includes the shell, the shell lower extreme is equipped with the signal processing board of detachable connection, one side is equipped with the LED keysets of detachable connection, be equipped with infrared LED lamp source on the LED keysets, be equipped with the photodiode on the signal processing board, the photodiode runs through the shell bottom, both sides are equipped with the business turn over passageway of intercommunication around the shell, the shell left side is equipped with light trap, right side is equipped with infrared light inlet window, light trap is located the shell inside, be equipped with the baffle of fixing on the shell between business turn over passageway and the infrared light inlet window, be equipped with the diaphragm on the baffle, light trap and business turn over passageway, diaphragm and infrared light inlet window intercommunication, light trap, diaphragm and infrared light inlet window are on same axle center line.
Further, the baffle includes one-level baffle, second grade baffle and tertiary baffle, be equipped with one-level diaphragm on the one-level baffle, be equipped with the second grade diaphragm on the second grade baffle, be equipped with tertiary diaphragm on the tertiary baffle, one-level diaphragm is located infrared light window one side.
Further, two windows are arranged on the upper end face of the shell, one window is located between the first-stage partition board and the second-stage partition board, and the other window is located between the second-stage partition board and the third-stage partition board.
Further, the top view of the light trap is a right triangle, and the hypotenuse side is a plane.
Further, the front side right-angle side of the optical trap is a sawtooth-shaped absorption region.
Further, the angle between the serrations of the serrated absorbent region is ninety degrees.
Further, the upper end of the light trap is designed to be an opening.
Further, the specification of the infrared LED lamp source is 850nm.
Further, the infrared light inlet window is circular in shape.
Further, the signal processing board is provided with an amplifying circuit, and the shell and the signal processing board and the shell and the LED adapter board are connected through bolts.
Compared with the prior art, the utility model has the beneficial effects that:
the application provides a miniaturized infrared smoke sensor, has used the light path design of optimizing, has established great volumetric smoke inlet chamber to and small-size light trap room, has realized miniaturized, high accuracy measurement, and has the smoke sensor of high stability, the emergence of lithium cell thermal runaway phenomenon that can be timely is monitored to the timely handling potential safety hazard of staff has improved the security in the battery use.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic view of the structure of the housing part of the present utility model.
Fig. 3 is a schematic view of the optical path of the present utility model.
Fig. 4 is a top view of the present utility model.
Fig. 5 is a sectional view of fig. 4 taken along direction D.
In the figure, 1, a housing; 11. a smoke inlet channel; 12. an infrared light inlet window; 2. a signal processing board; 3. a photodiode; 4. an LED adapter plate; 5. an infrared LED light source; 6. a diaphragm; 601. a first-stage diaphragm; 602. a second-stage diaphragm; 603. three-stage diaphragms; 7. an optical trap; 8. a light beam; 9. smoke particles; 10. a partition plate; 101. a first-stage separator; 102. a second-stage separator; 103. and a third-stage partition board.
Detailed Description
The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.
As shown in fig. 1-5, a miniaturized infrared smoke sensor comprises a housing 1, a signal processing plate 2 detachably connected is arranged at the lower end of the housing 1, an LED adapter plate 4 detachably connected is arranged on one side of the housing 1, an infrared LED lamp source 5 is arranged on the LED adapter plate 4, a photodiode 3 is arranged on the signal processing plate 2, the photodiode 3 penetrates through the bottom of the housing 1, a smoke inlet channel 11 communicated with the front side and the rear side of the housing 1 is arranged on the two sides of the housing 1, an infrared light inlet window 12 is arranged on the left side and the right side of the housing 1, the light trap 7 is positioned in the housing 1, a partition board 10 fixed on the housing 1 is arranged between the smoke inlet channel 11 and the infrared light inlet window 12, a diaphragm 6 is arranged on the partition board 10, the light trap 7 is communicated with the smoke inlet channel 11, the diaphragm 6 and the infrared light inlet window 12, and the light trap 7, the diaphragm 6 and the infrared light inlet window 12 are on the same axis.
The baffle 10 comprises a first-stage baffle 101, a second-stage baffle 102 and a third-stage baffle 103, wherein a first-stage diaphragm 601 is arranged on the first-stage baffle 101, a second-stage diaphragm 602 is arranged on the second-stage baffle 102, a third-stage diaphragm 603 is arranged on the third-stage baffle 103, and the first-stage diaphragm 601 is positioned on one side of the infrared light inlet window 12.
The upper end face of the shell 1 is provided with two windows, one window is positioned between the first-stage partition plate 101 and the second-stage partition plate 102, and the other window is positioned between the second-stage partition plate 102 and the third-stage partition plate 103.
The top view of the optical trap 7 is a right triangle, and the hypotenuse side is a plane.
The front right-angle side of the optical trap 7 is a saw-tooth absorption region.
The angle between the serrations of the serrated absorbent region is ninety degrees.
The upper end of the light trap 7 is designed as an opening.
The specification of the infrared LED lamp source 5 is 850nm.
The infrared light entrance window 12 is circular in shape.
The signal processing board 2 is provided with an amplifying circuit, and the shell 1 and the signal processing board 2 and the shell 1 and the LED adapter board 4 are connected through bolts.
When the lithium battery in the battery pack works, smoke particles 9 can be generated when the lithium battery is in thermal runaway, the lithium battery enters the shell 1 through the smoke inlet channel 11, the light beam 8 emitted by the infrared LED lamp source 5 enters the light chamber through the infrared light inlet window 12, the light beam enters the light chamber, passes through the primary diaphragm 601, the secondary diaphragm 602 and the tertiary diaphragm 603 and then becomes nearly parallel light, and passes through the smoke inlet channel 11, when the smoke particles 9 exist in the channel, reflection and scattering phenomena can occur, the reflected and scattered light is directed to the photodiode 3 to generate response current, the response current is amplified by the amplifying circuit of the signal processing board 2, the response current is transmitted to the corresponding signal receiving area, the redundant light enters the light trap 7, and the light beam enters the serrated absorbing area through plane reflection of the light trap 7 and is reflected in the serrated absorbing area for multiple times until the light beam is absorbed completely. The utility model is integrated on a lithium battery thermal runaway detector, and can realize the measurement accuracy of 100ug/m 3 The measuring range reaches 100mg/m 3 Is a fog measurement of (2).
The application provides a miniaturized infrared smoke sensor, has used the light path design of optimizing, has established the cigarette room that advances of great volume to and the 7 rooms of small and exquisite light trap, has realized miniaturized, high accuracy measurement, and has the smoke sensor of high stability, the emergence of lithium cell thermal runaway phenomenon that can be timely is monitored to the timely handling potential safety hazard of staff has improved the security in the battery use.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (10)
1. A miniaturized infrared smoke sensor, characterized in that: including shell (1), shell (1) lower extreme is equipped with signal processing board (2) that can dismantle the connection, one side is equipped with LED keysets (4) that can dismantle the connection, be equipped with infrared LED lamp source (5) on LED keysets (4), be equipped with photodiode (3) on signal processing board (2), photodiode (3) run through shell (1) bottom, both sides are equipped with the business turn over passageway (11) of intercommunication around shell (1), shell (1) left side is equipped with light trap (7), right side is equipped with infrared light window (12), light trap (7) are located inside shell (1), be equipped with baffle (10) of fixing on shell (1) between business turn over passageway (11) and infrared light window (12), be equipped with diaphragm (6) on baffle (10), light trap (7) and business turn over passageway (11), diaphragm (6) and infrared light window (12) intercommunication, light trap (7), 6) and infrared light window (12) are on same axle center line.
2. The miniaturized infrared smoke sensor as set forth in claim 1, wherein: the baffle (10) comprises a first-stage baffle (101), a second-stage baffle (102) and a third-stage baffle (103), wherein a first-stage diaphragm (601) is arranged on the first-stage baffle (101), a second-stage diaphragm (602) is arranged on the second-stage baffle (102), a third-stage diaphragm (603) is arranged on the third-stage baffle (103), and the first-stage diaphragm (601) is located on one side of an infrared light inlet window (12).
3. The miniaturized infrared smoke sensor as set forth in claim 2, wherein: the upper end face of the shell (1) is provided with two windows, one window is positioned between the first-stage partition board (101) and the second-stage partition board (102), and the other window is positioned between the second-stage partition board (102) and the third-stage partition board (103).
4. The miniaturized infrared smoke sensor as set forth in claim 1, wherein: the top view of the light trap (7) is a right triangle, and the hypotenuse side is a plane.
5. The miniaturized infrared smoke sensor as set forth in claim 4, wherein: the front right-angle side of the optical trap (7) is a sawtooth-shaped absorption area.
6. The miniaturized infrared smoke sensor as set forth in claim 5, wherein: the angle between the serrations of the serrated absorbent region is ninety degrees.
7. The miniaturized infrared smoke sensor as set forth in claim 1, wherein: the upper end of the light trap (7) is designed as an opening.
8. The miniaturized infrared smoke sensor as set forth in claim 1, wherein: the specification of the infrared LED lamp source (5) is 850nm.
9. The miniaturized infrared smoke sensor as set forth in claim 1, wherein: the infrared light inlet window (12) is circular in shape.
10. The miniaturized infrared smoke sensor as set forth in claim 1, wherein: the signal processing board (2) is provided with an amplifying circuit, and the shell (1) and the signal processing board (2) and the shell (1) and the LED adapter board (4) are connected through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321909249.5U CN220473306U (en) | 2023-07-20 | 2023-07-20 | Miniaturized infrared smoke sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321909249.5U CN220473306U (en) | 2023-07-20 | 2023-07-20 | Miniaturized infrared smoke sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220473306U true CN220473306U (en) | 2024-02-09 |
Family
ID=89773044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321909249.5U Active CN220473306U (en) | 2023-07-20 | 2023-07-20 | Miniaturized infrared smoke sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220473306U (en) |
-
2023
- 2023-07-20 CN CN202321909249.5U patent/CN220473306U/en active Active
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