CN200996940Y - Smoke detecting chamber structure - Google Patents
Smoke detecting chamber structure Download PDFInfo
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- CN200996940Y CN200996940Y CN 200720105565 CN200720105565U CN200996940Y CN 200996940 Y CN200996940 Y CN 200996940Y CN 200720105565 CN200720105565 CN 200720105565 CN 200720105565 U CN200720105565 U CN 200720105565U CN 200996940 Y CN200996940 Y CN 200996940Y
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Abstract
A smoke detecting structure comprises a bottom plate (2) and a top cap (1). The bottom plate (2) is equipped with the illuminant emitter (3) and the receiver (4). Also, light blocking body (5) and the included angle Alpha are arranged between the illuminant emitter (3) and the receiver (4). The buzzer (7) is equipped on the bottom plate within the scope of the non-sensitive areas: included angle Alpha. The light blocking body (5) is arranged around the exterior of the buzzer (7) so as to form a cavity (8) when connected with the illuminant emitter (3) and the receiver (4). Inside the cavity (8), the light blocking body (6) is arranged within the scope of angle included by and between the illuminant emitter (3) and the receiver (4). The light blocking body (5) is shaped like a Chinese character ''ren''. Lower ends of both sides hereof are respectively equipped with an inclined plane (10).
Description
Technical field
The utility model relates to a kind of warning device, relates in particular to a kind of smoke detection cell structure.
Background technology
Now various alarm emerges in an endless stream, and mainly is three types in ion, photoelectricity, temperature-sensitive.In early days widely used is the ion-type alarm, the radioisotopic radioactive half-life that it adopts is extremely long, can be used as the stable radioactive source that makes air ionization, this alarm is stable, reliable, but complex structure, cost are higher, and involve radioactivity and make people that environmental protection misgivings be arranged, thereby existing adopter gradually reduces.At present maximum is photo-electric smoke-sensitive alarm device, and this alarm is simpler with respect to the ion-type probe, environmental protection, cost are low.Common photoelectric smoke type alarm is made up of detecting chamber, infrared emission tube, infrared receiver tube and opto-electronic conversion components and parts etc., as Chinese patent CN2800269.Its detection method mainly contains " forward direction " and " back to " two types; So-called " forward direction " and " back to " be reflected light as orientation, flue dust scattered light direction with launch light and be called " forward direction " in the same way, and be decided to be " after to " towards light source one side.Be meant that with the work of " back scattering " mode the emission rayed directly reflects to light source direction after the particulate of flue dust, with this reflected light as received signal, receive the measuring position and be 90 ° with interior scope with emission light, the angle of employing has 40 °, 70 ° two kinds.With the work of " forward scattering " mode is that receiving trap detects the emission rayed in the scattering of flue dust generation greater than 90 ° of directions.In above-mentioned two kinds of detection methods, adopt various forms darkroom structure to obtain different measurement performances, be furnished with various labyrinth in the darkroom of a lot of forms.Mostly be in the existing labyrinth to the de-militarized zone in light emitted device and the light source receiver angular range, well not utilize on the whole corral.
Summary of the invention
The utility model mainly provides a kind of compact conformation, effectively utilizes the de-militarized zone in the labyrinth, a kind of timely smoke detection cell structure of reporting to the police; It is big to have solved the structure that exists in the prior art, the technical matters that space availability ratio is low.
The utility model also provides simultaneously a kind of and can effectively stop once and secondary reflection light, survey sensitive, a kind of smoke detection cell structure that cost is low; Solve the labyrinth structure complexity in the existing alarm of the prior art darkroom, stop that area is big, insensitive technical matters.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals: a kind of smoke detection cell structure, comprise base plate and loam cake, on described base plate, be provided with light emitted device and receiver, be provided with light shield between light emitted device and receiver, be provided with angle α between described light emitted device and the receiver, be provided with hummer on the base plate in described de-militarized zone angle α scope, described light shield is around the excircle setting of hummer, with described transmitter, receiver is connected to form a cavity, in cavity, be provided with block body in light emitted device and the receiver angular range; Described light shield is " people " font, and the lower end of two sides of light shield respectively is provided with a dip plane.The angle α scope of light emitted device and light emitted device is a de-militarized zone, in de-militarized zone, be provided with hummer, can when smog reaches alarming value, pass through buzzer warning at once, there is the good warning function of having realized in both effective space that has utilized in the alarm.In the hummer periphery light shield is set, makes light shield and light emitted device, light source receiver still be connected to form the cavity of a closure, prevent that the outer light of cavity from entering.More sensitive for the warning that makes alarm, alarming value and background value that this just need be provided with in alarm differ greatly.For the utility model, during the background value of setting, the light that sends by the light emitted device, when entering the light source receiver again after the repeatedly scattering through block body, light shield, light intensity a little less than, just background value is little.When smog occurring, because the particle of smog is bigger, reflect into light intensity into the light source receiver greater than background value, form and report to the police.Light shield is " people " font, has reduced the shielded area that smog enters, and structure is also simple simultaneously.On the side of light shield, be provided with the dip plane, make to make things convenient for reflect focalization by the wedge angle that the free end of side forms.
As preferably, the height of described hummer is the 1/5-1/3 of the height of light shield.The height of hummer is lower than light shield, can make conveniently that smog is easier to enter in the chamber, makes that induction is more sensitive.
As preferably, the angle between the dual-side of described formation " people " font light shield is 50 °-90 °.As more preferably, angle is 70 °.
As preferably, the side of described light shield and the angle between the dip plane are 20 °-50 °.As most preferably, angle is 35 °.
As preferably, the angle between described transmitter and the receiver is 140 °.
As preferably, the line on the free end summit of light shield inner side edge is circle and lacks shape.Can be so that internal reflect focalization better effects if.
As preferably, described block body is " W " shape, and two outer side edges that constitute the block body of " W " shape are 4 °-10 ° with light emitted device, light source receiver angle respectively.The most most preferably, angle is 5 °.Block body is " W " shape, and effectively light and the secondary light of having prevented once enters the light source receiver, because the block body face is a serrated face, has further reduced light intensity.Between two sides in the outside of block body and light emitted device and receiver angle is set, can makes the light scattering effect that emits by the light emitted device better.
As preferably, described base plate is circular, covers on described and is evenly equipped with 3 grabs.Grab directly snaps on the circuit board under the base plate, has not only fastened loam cake, has also fixed alarm.
Therefore, the utlity model has following advantage: 1. in the de-militarized zone between light emitted device and light source receiver hummer is set, has effectively utilized the space in the alarm; 2. " people " font light shield is set, can so that smog to stop area little, labyrinth structure is simple simultaneously, the convenient manufacturing; 3. W shape block body is set, can effectively avoids once light and secondary light, reduce the background light value, alarm is more responsive.
Description of drawings:
Fig. 1 is the front view of a kind of smoke detection cell structure of the present utility model;
Fig. 2 is the stereographic map of Fig. 1;
Fig. 3 is the front view of loam cake;
Fig. 4 is the side view of the loam cake among Fig. 1;
Fig. 5 is the enlarged diagram of the light shield at C place in Fig. 1;
The concrete example of implementing:
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment:
As shown in Figure 1, a kind of smoke detection cell structure comprises loam cake 1 and base plate 2, and base plate is rounded, and light source transmitter 3 and light source receiver 4 on described base plate 2 are provided with angle α between light emitted device 3 and the receiver 4, and angle α is 140 °.Zone in above-mentioned angle α scope is a de-militarized zone, base plate 1 in this zone is provided with a hummer 7, the excircle of hummer 7 is surrounded with light shield 5, and light shield 5 and light emitted device 3, light source receiver 4 are connected to form the cavity 8 of a closure.Hummer 7, light shield 5, light emitted device 3 and light source receiver 4 surround a circle, are arranged on the edge of base plate 2.The height of hummer 7 be light shield 5 height 2/5.De-militarized zone in cavity 8 is provided with a block body 6, and block body 6 is " W " shape, and the extended line of two lateral surfaces of block body 6 is 5 ° with the extended line angle β of the end face of light emitted device 3 and light source receiver 4 respectively.Described light shield 5 is " people " font, angle of cut A between the dual-side of formation " people " font light shield 5 is 70 °, the openend of two sides, also be that free end is provided with a dip plane 10, make the side bottom of light shield 5 form a wedge angle (as shown in Figure 5), formed wedge angle B is 35 °.
All there are 3 grabs 9 in the step on loam cake 1, is used for linking to each other with circuit board below the base plate 2.This not only has been fastened on loam cake 1 on the base plate 2, and airtight cavity 8 has also been fixed alarm simultaneously.
Specific embodiment described herein only is that design of the present utility model is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (8)
1. smoke detection cell structure, comprise base plate (2) and loam cake (1), on described base plate (2), be provided with light emitted device (3) and receiver (4), be provided with light shield (5) between light emitted device (3) and receiver (4), be provided with angle α between described light emitted device (3) and the receiver (4), it is characterized in that: be provided with hummer (7) on the base plate in described de-militarized zone angle α scope, described light shield (5) is around the excircle setting of hummer (7), with described transmitter (3), receiver (4) is connected to form a cavity (8), in cavity (8), be provided with block body (6) in light emitted device (3) and receiver (4) angular range; Described light shield (5) is " people " font, and the lower end of two sides of light shield (5) respectively is provided with a dip plane (10).
2. a kind of smoke detection cell structure according to claim 1 is characterized in that: the height of described hummer (7) is the 1/5-1/3 of the height of light shield (5).
3. a kind of smoke detection cell structure according to claim 1 is characterized in that: the angle between described light emitted device (3) and the receiver (4) is 140 °.
4. a kind of smoke detection cell structure according to claim 1 is characterized in that: the angle between the dual-side of described formation " people " font light shield (5) is 50 °-90 °.
5. a kind of smoke detection cell structure according to claim 1 is characterized in that: the angle between the side of described light shield (5) and dip plane (10) is 20 °-50 °.
6. according to any described a kind of smoke detection cell structure in the claim 1 to 5, it is characterized in that: the line on the free end summit of light shield (5) inner side edge is circle and lacks shape.
7. according to any described a kind of smoke detection cell structure in the claim 1 to 5, it is characterized in that: described block body (6) is " W " shape, and two outer side edges that constitute the block body (6) of " W " shape are 4 °-10 ° with light emitted device (3), light source receiver (4) angle respectively.
8. according to any described a kind of smoke detection cell structure in the claim 1 to 5, it is characterized in that: described base plate (2) is evenly equipped with 3 grabs (9) for circular on described loam cake (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720105565 CN200996940Y (en) | 2007-01-15 | 2007-01-15 | Smoke detecting chamber structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720105565 CN200996940Y (en) | 2007-01-15 | 2007-01-15 | Smoke detecting chamber structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200996940Y true CN200996940Y (en) | 2007-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720105565 Expired - Lifetime CN200996940Y (en) | 2007-01-15 | 2007-01-15 | Smoke detecting chamber structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN200996940Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103400469A (en) * | 2013-07-31 | 2013-11-20 | 武光杰 | Smoke module |
| CN104769649A (en) * | 2012-12-18 | 2015-07-08 | 埃塞力达技术菲律宾有限公司 | Integrated smoke cell |
| CN105741478A (en) * | 2016-04-06 | 2016-07-06 | 深圳华鹰世纪光电技术有限公司 | Labyrinth type smog detecting smoke detector |
| CN111292500A (en) * | 2018-12-07 | 2020-06-16 | 杭州海康消防科技有限公司 | Smoke-sensitive fire detection alarm |
| CN112185055A (en) * | 2015-10-26 | 2021-01-05 | 报知希株式会社 | Alarm device |
-
2007
- 2007-01-15 CN CN 200720105565 patent/CN200996940Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104769649A (en) * | 2012-12-18 | 2015-07-08 | 埃塞力达技术菲律宾有限公司 | Integrated smoke cell |
| CN103400469A (en) * | 2013-07-31 | 2013-11-20 | 武光杰 | Smoke module |
| CN112185055A (en) * | 2015-10-26 | 2021-01-05 | 报知希株式会社 | Alarm device |
| CN105741478A (en) * | 2016-04-06 | 2016-07-06 | 深圳华鹰世纪光电技术有限公司 | Labyrinth type smog detecting smoke detector |
| CN111292500A (en) * | 2018-12-07 | 2020-06-16 | 杭州海康消防科技有限公司 | Smoke-sensitive fire detection alarm |
| CN111292500B (en) * | 2018-12-07 | 2022-02-08 | 杭州海康消防科技有限公司 | Smoke-sensitive fire detection alarm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20071226 |
|
| EXPY | Termination of patent right or utility model |