CN106781202A - Anti-condensation type smoke detector base - Google Patents
Anti-condensation type smoke detector base Download PDFInfo
- Publication number
- CN106781202A CN106781202A CN201710109062.XA CN201710109062A CN106781202A CN 106781202 A CN106781202 A CN 106781202A CN 201710109062 A CN201710109062 A CN 201710109062A CN 106781202 A CN106781202 A CN 106781202A
- Authority
- CN
- China
- Prior art keywords
- probe module
- base
- centering face
- heating plate
- shell body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR 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
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire-Detection Mechanisms (AREA)
Abstract
The invention provides a kind of anti-condensation type smoke detector base, including shell body and cover plate, sense cigarette probe module is embedded in the anti-condensation type smoke detector base, a centering face parallel with cover plate is provided with the shell body, the base of the sense cigarette probe module is fitted with the centering face, and heating plate is provided between the base and the centering face.By upper, the heating of the sense cigarette probe module that can realize connecting with the base by the heating plate, so that the globule that the steam-laden in the air entered into inside smoke detector is formed is heated, so as to avoid due to the wrong report problem produced by condensation.
Description
Technical field
The present invention relates to intelligent security guard technical field, more particularly to a kind of anti-condensation type smoke detector base.
Background technology
Photo-sensitive cell is the chief component of fire detector, and it detects external rings by optics, physics principle
The slight change in border, is often mistakenly considered fire hazard aerosol fog by the material (such as dust, water smoke) similar to smog aspect characteristic.
Further, since photo-sensitive cell is chronically exposed in external environment condition, it is vulnerable to the influence such as dust in air, moisture and drops sensitivity
It is low.Because nuclear power station is in coastal cities mostly, weather moistening, humidity is often exceeded, particularly summer plum rain season and winter
Nan Tian's (Shelter in South China Cities) period is returned, humidity is usually up to more than 95%, and daytime temperature is higher, and air is difficult to reach saturation, it is more difficult to
The globule is formed, when to evening, mercury dropped, the vapor in air is easy to saturation, easily forms the globule.When entering detector
After moisture in detecting chamber forms the globule, light can be caused largely to scatter, make detector that false alarm to occur.Moisture also easily adsorbs ash
Dirt, produces leakage current on the circuit board of detector, open circuit potential plate, and such as wet weathers such as rainy days, then situation is more serious.
A kind of smart home smoke alarm of such as Application No. CN201620879183.3, and Application No.
A kind of wireless optical electric-type smoke alarm of CN201520454781.1 etc., just there are drawbacks described above.
The content of the invention
It is a primary object of the present invention to provide a kind of anti-condensation type smoke detector base, including shell body 1 and cover plate
11, sense cigarette probe module 14 is embedded in the anti-condensation type smoke detector base, be provided with the shell body 1 one with
The parallel centering face 20 of cover plate 11, the base of the sense cigarette probe module 14 fits with the centering face 20, in the base
Heating plate 9 is provided between the centering face 20.
By upper, can be realized for be connected to a fixed with the application base sense cigarette probe module by heating plate plus
Heat, so as to heat the globule that the steam-laden in the air entered into inside smoke detector is formed, so as to avoid due to
Wrong report problem produced by condensation.
Optionally, the heating plate 9 is fixed by heating plate pressing plate 5；
By screwing in screw 6, the heating plate pressing plate 5 is fixed on the centering face 20, the screw 6 is embedded in described
Heating plate pressing plate 5.
By upper, the fixation for heating plate is realized, while embedded screw one is influenceed avoiding screw end from exposing
Outward appearance；Two avoid screw end for the interference of other components.
Optionally, the center of the heating plate pressing plate 5 is provided with through hole, the cable of the sense cigarette probe module 14
Stretched out by the through hole, embedding is carried out at the gap between the cable and the through hole.
By upper, ensure that cable does not loosen by embedding, and ensure the seal of environment where sense cigarette probe module.
Optionally, also including temperature detect switch (TDS) 7 and fuse 8, composition heating circuit is electrically connected with the heating plate 9, it is fixed
The one side of cigarette probe module 14 is dorsad felt in the centering face 20.
By upper, temperature detect switch (TDS) can be acted when power network exception, heating plate failure etc. cause temperature over-range, so as to cut
The heating circuit power supply of disconnected heating plate, to ensure Electrical Safety.And the fuse in the heating circuit can be when because of electricity
Net exception, heater block failure etc. cause electric current to be fused when transfiniting, and cut off the power supply of heating circuit to ensure safety.
Optionally, also include：
Temperature sensor and humidity sensor, are fixed on the one side that cigarette probe module 14 is dorsad felt in the centering face 20；
Dew-point temperature calculates module, is electrically connected with the temperature sensor and humidity sensor respectively, and it is described fixed to be fixed on
Dorsad feel the one side of cigarette probe module 14 in heart face 20；
The dew-point temperature calculates module and is also electrically connected with the temperature detect switch (TDS) 7.
By upper, judge that the environment temperature detected by temperature sensor is less than its institute when the dew-point temperature calculates module
During the dew-point temperature for calculating, instructed to temperature detect switch (TDS) output control, so as to control to open heating plate by temperature detect switch (TDS).Pass through
The heat radiation of heating plate makes the body temperature of sense cigarette probe module be consistently higher than dew-point temperature, so that it is guaranteed that will not be in sense cigarette probe
Module produces condensation, such that it is able to be fully solved because of the false alarm problem that condensation is caused.
Optionally, the inwall of the shell body 1 is from gradually becoming near the one end of centering face 20 away from the one end of centering face 20
Thick guiding surface structure.
By upper, guiding surface structure is easy to the seam of the sense cigarette probe module and the base portion fitted of the shell body
Gap is uniformly fitted, so that equal thermal effect when strengthening heating described hereinafter.
Optionally, the heating plate 9 is closed using silicon rubber, resistant to elevated temperatures fibre reinforced materials and by the nickel after arrangement
The soft electric heating film element of golden resistive conductor set.
Optionally, in the cover plate 11 and the junction of shell body 1, it is additionally provided with rubber blanket 10.
By upper, rubber blanket can strengthen the sealing effectiveness of smoke detector.
Optionally, the cable of the sense cigarette probe module 14 is extended to outside shell body 1 by one or four core aviation sockets 16；
The cable of the heating circuit is extended to outside shell body 1 by one or three core aviation sockets 15.
Brief description of the drawings
Fig. 1 shows for the anti-condensation type smoke detector base exterior structure for installing thoughts cigarette probe module additional of side-looking angle of field
It is intended to；
Fig. 2 shows for the anti-condensation type smoke detector base exterior structure for installing thoughts cigarette probe module additional at front view visual angle
It is intended to；
Fig. 3 is the schematic cross-sectional view of Fig. 1；
Fig. 4 is fixed schematic diagram of the base with anti-condensation type smoke detector base shell for feeling cigarette probe module；
Fig. 5 is to remove the schematic diagram after the anti-condensation type smoke detector base device cover plate of sense；
Fig. 6 is the cable and the cable of heating circuit of the sense cigarette probe module comprising plug；
Fig. 7 is the reality that sense cigarette probe module to being installed on anti-condensation type smoke detector base carries out anti-condensation test
Test environment schematic.
Specific embodiment
Anti-condensation type smoke detector base of the present invention is described in detail referring to Fig. 1~Fig. 7.
It is as shown in Figure 1, 2 the anti-condensation type smoke detector base exterior schematic diagram for installing thoughts cigarette probe module additional, by
Shell body 1 and cover plate 11 are constituted, and sense cigarette probe module 14 is embedded wherein.On the outside of the housing 1, distinguished by screw 3
It is fixed with nameplate 2 and Sign Board 4.
It is illustrated in figure 3 the schematic cross-sectional view of the anti-condensation type smoke detector base for installing thoughts cigarette probe module additional.Its
In, sense cigarette probe module 14 is embedded in the shell body 1.The inwall of the shell body 1 is guiding surface structure, i.e., by away from lid
The one end of plate 11 is to gradually thickening near the one end of cover plate 11.Consequently facilitating the base portion of the sense cigarette probe module 14 is outer with described
The gap of housing 1 is uniformly fitted, so that equal thermal effect when strengthening heating described hereinafter.
In the shell body 1, also including one with the parallel centering face 20 of cover plate 11, the centering face 20 can be with the shell
Body 1 is integral type structure, and the sense cigarette probe module 14 is embedded in the shell body 1, is fitted with the centering face 20.Institute
The center in the centering face of stating 20 is provided with through hole.
The sense cigarette probe module 14 is including lid 142 on base 141, labyrinth and inside lid 142 on base and labyrinth
Sensor element (not shown).It is illustrated in figure 4 the schematic diagram of its base of sense cigarette probe module 14.The base 141 and fan
Lid 142 is split-type structural (by screwing in screw, blocks and/or be tightened, specifically repeat no more) on palace, and base 141 passes through spiral shell
Nail 12 is fixed on the centering face 20.In sum, sense cigarette probe module 14 uses split-type structural, and base 141 is only
Vertical fixed design pattern, so as to install or change sense cigarette probe module when without open cover plate 11, you can simply and easily
Change the base 141 of sense cigarette probe module.
In the shell body 1 and the junction of cover plate 11, rubber blanket 10 is additionally provided with, such that it is able to strengthen sealing effectiveness.
The cover plate 11 and rubber blanket 10 are fixed on the shell body 1 by screw 13.
In shell body 1, cavity is formed between centering face 20 and cover plate 11.As shown in Figure 3 and Figure 5, hold in the cavity
The electronic component of anti-condensation type smoke detector base, including consisting of are received：
Heating plate 9, is arranged at the through hole in the centering face 20.The heating plate 9 is using silicon rubber, resistant to elevated temperatures fiber
Reinforcing material and the soft electric heating film element by the nickel alloy resistive conductor set after arrangement.The heating plate 9 leads to
Heating plate pressing plate 5 is crossed to be fixed.In the present embodiment, the heating plate pressing plate 5 is fixed on the centering by screwing in screw 6
Face 20.As shown in figure 3, the screw 6 is using design in chamber, one influences outward appearance avoiding screw end from exposing；Two avoid
Interference of the screw end for other components.
It is seamless between heating plate 9 and the base 141 of the sense cigarette probe module 14 after fixation to be close to, in its joint place
Any spray treatment is not done, to ensure the optimal heating effect to sense cigarette probe module 14.
In addition, being provided with through hole in the center of the heating plate pressing plate 5, the cable of the sense cigarette probe module 14 leads to
The through hole is crossed to stretch out.At gap between the cable and the through hole of heating plate pressing plate 5, using epoxy resin 19
Embedding is carried out, to ensure that cable does not loosen.
Temperature detect switch (TDS) 7, is electrically connected with the heating plate 9, and the centering face 20 is fixed on by fixture.By setting temperature
Control switch 7, can be acted when power network exception, heating plate failure etc. cause temperature over-range, so as to cut off adding for heating plate 9
Hot loop power supply, to ensure Electrical Safety.
Further, fuse 8 is additionally provided with the heating circuit, when because of power network exception, heater block failure etc.
When causing electric current and transfiniting, fuse 8 fuses, and cuts off the power supply of heating circuit to ensure safety.
The cable of the sense cigarette probe module 14 is extended to outside shell body 1 by one or four core aviation sockets 16, four core
Aviation socket 16 is fixed on the shell body 1.
The cable of the heating circuit is extended to outside shell body 1 by one or three core aviation sockets 15, and the three cores aviation is inserted
Seat 15 is fixed on the shell body 1.
The degree of protection of the four cores aviation socket 16 and three core aviation sockets 15 is IP67.So that it is guaranteed that in high humility ring
Moisture content is not had under border and enters circuit part, influence heating properties.
Be respectively comprising the plug 17 matched with four core aviation sockets 16 shown in Fig. 6, and with three core aviation sockets 15
The plug 18 for matching.
Preferably, also including temperature sensor and humidity sensor (not shown) in the cavity, detection is respectively used to
The temperature and humidity of the place environment of sense cigarette probe module 14.
One dew-point temperature calculates module, is electrically connected with the temperature sensor and humidity sensor respectively, for according to sense
The temperature and humidity of the place environment of cigarette probe module 14 calculates the existing dew point temperature of place environment.Further, the dew
Point temperature computation module is also electrically connected with foregoing temperature detect switch (TDS) 7, and temperature sensor is judged when the dew-point temperature calculates module
When detected environment temperature is less than the dew-point temperature that it is calculated, instructed to the output control of temperature detect switch (TDS) 7, so as to pass through
Heating plate 9 is opened in the control of temperature detect switch (TDS) 7.Make the body temperature of sense cigarette probe module 14 high all the time by the heat radiation of heating plate 9
In dew-point temperature, so that it is guaranteed that will not be covered on the surface of sense cigarette probe module 14 and labyrinth it is internal produce condensation, be fully solved because
For the false alarm problem that condensation is caused.
For whether checking the application base solves the problems, such as moisture-induced wrong report, base involved by the application will be installed at
The common smoke detector of sense cigarette probe module and prior art is same to be placed in experimental rig.As shown in Figure 7.The experimental rig
It is the cuboid made using the glass of 8mm thickness, is easy to observe inner case, experimental rig internal capacity 80L.In the experiment
The devices such as fan, adding thermal resistance, temperature/hygronom, humidifier are provided with inside device.The parameter of each device is：Air quantity of fan
15CFM；0~100W of firing resistor power, and continuously adjustabe；The measurement range of thermometer is 0~80 DEG C, error ± 0.3 DEG C, point
0.1 DEG C of resolution；The measurement range of thermometer is：0~99.9%RH, error ± 2%RH, resolution ratio 0.1%RH；The water of humidifier
It is 0.5~1 micron to be atomized, humidification 80~280ml/h of amount, and continuously adjustabe.
Experimental situation includes two categories below：
First, a small amount of water smoke environment
Humidifier is persistently humidified, and water smoke can be produced in chamber, wherein common smoke detector occurs wrong report fire alarm, is installed additional
Detect that peak value is 1% to the maximum and (detects that peak value reaches in whole humidification in the sense cigarette probe module of base involved by the application
To 100% alarm).It is demonstrated experimentally that the sense cigarette probe module for being installed at base involved by the application can be well in a small amount of water
Normal work in mist environment.
2nd, high humidity condensation environment
By in experimental rig to being installed at the sense cigarette probe module and common smoke detection of base involved by the application
Contrast experiment of the device under equivalent environment, when condensation is simulated, common smoke detector is reported by mistake, is installed at involved by the application
And the sense cigarette probe module of base can normal work.The sense cigarette for being installed at base involved by the application is visited when condensation test is completed
Head module carries out smog test, can Normal Alarm.It is demonstrated experimentally that being installed at base involved by the application under high humidity condensation environment
Sense cigarette probe module still can be with normal work.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all it is of the invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (9)
1. a kind of anti-condensation type smoke detector base, including shell body (1) and cover plate (11), it is characterised in that
Sense cigarette probe module (14) is embedded in the anti-condensation type smoke detector base, is set in the shell body (1)
The base for having a centering face (20) parallel with cover plate (11), sense cigarette probe module (14) is affixed with the centering face (20)
Close, heating plate (9) is provided between the base and the centering face (20).
2. base according to claim 1, it is characterised in that the heating plate (9) is consolidated by heating plate pressing plate (5)
It is fixed；
By screwing in screw (6), the heating plate pressing plate (5) is fixed on the centering face (20), the screw (6) is embedded in
The heating plate pressing plate (5).
3. base according to claim 2, it is characterised in that be provided with the center of the heating plate pressing plate (5)
Through hole, the cable of the sense cigarette probe module (14) is stretched out by the through hole, between the cable and the through hole
Gap at carry out embedding.
4. base according to claim 1, it is characterised in that also including temperature detect switch (TDS) (7) and fuse (8), it is and described
Heating plate (9) electrical connection composition heating circuit, is fixed on the one side that cigarette probe module (14) is dorsad felt in the centering face (20).
5. base according to claim 4, it is characterised in that also include：
Temperature sensor and humidity sensor, are fixed on the one side that cigarette probe module (14) is dorsad felt in the centering face (20)；
Dew-point temperature calculates module, is electrically connected with the temperature sensor and humidity sensor respectively, is fixed on the centering face
(20) one side of cigarette probe module (14) is dorsad felt；
The dew-point temperature calculates module and is also electrically connected with the temperature detect switch (TDS) (7).
6. base according to claim 1, it is characterised in that the inwall of the shell body (1) is by away from centering face
(20) one end is near the gradually thickening guiding surface structure in centering face (20) one end.
7. base according to claim 1, it is characterised in that the heating plate (9) is using silicon rubber, resistant to elevated temperatures fiber
Reinforcing material and the soft electric heating film element by the nickel alloy resistive conductor set after arrangement.
8. base according to claim 1, it is characterised in that in the cover plate (11) and the junction of shell body (1), also
It is provided with rubber blanket (10).
9. base according to claim 4, it is characterised in that the cable of the sense cigarette probe module (14) passes through one or four cores
It is outside that aviation socket (16) extends to shell body (1)；
It is outside that the cable of the heating circuit extends to shell body (1) by one or three core aviation sockets (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710109062.XA CN106781202A (en) | 2017-02-27 | 2017-02-27 | Anti-condensation type smoke detector base |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710109062.XA CN106781202A (en) | 2017-02-27 | 2017-02-27 | Anti-condensation type smoke detector base |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106781202A true CN106781202A (en) | 2017-05-31 |
Family
ID=58960892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710109062.XA Pending CN106781202A (en) | 2017-02-27 | 2017-02-27 | Anti-condensation type smoke detector base |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106781202A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107738922A (en) * | 2017-08-31 | 2018-02-27 | 山东景昂智能装备有限公司 | A kind of stacking machine photoelectric sensor protection device |
| CN110631970A (en) * | 2019-09-16 | 2019-12-31 | 合肥福瞳光电科技有限公司 | Dynamic heating system and atmosphere ultrafine particle detector |
| WO2021237502A1 (en) * | 2020-05-27 | 2021-12-02 | 深圳市泛海三江电子股份有限公司 | Fire detector for preventing false alarms and method of use |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0991562A (en) * | 1995-09-26 | 1997-04-04 | Hitachi Building Syst Co Ltd | Smoke sensing device |
| KR20050094965A (en) * | 2004-03-24 | 2005-09-29 | 이종근 | Preventing dew condensation in smoke detector and preventing dew condensation method thereof |
| CN203733252U (en) * | 2014-03-06 | 2014-07-23 | 江苏核电有限公司 | Water-condensation-resistant device of infrared two-way emission fire hazard detector reflecting plate |
| CN206489682U (en) * | 2017-02-27 | 2017-09-12 | 中广核研究院有限公司北京分公司 | Anti-condensation type smoke detector base |
-
2017
- 2017-02-27 CN CN201710109062.XA patent/CN106781202A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0991562A (en) * | 1995-09-26 | 1997-04-04 | Hitachi Building Syst Co Ltd | Smoke sensing device |
| KR20050094965A (en) * | 2004-03-24 | 2005-09-29 | 이종근 | Preventing dew condensation in smoke detector and preventing dew condensation method thereof |
| CN203733252U (en) * | 2014-03-06 | 2014-07-23 | 江苏核电有限公司 | Water-condensation-resistant device of infrared two-way emission fire hazard detector reflecting plate |
| CN206489682U (en) * | 2017-02-27 | 2017-09-12 | 中广核研究院有限公司北京分公司 | Anti-condensation type smoke detector base |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107738922A (en) * | 2017-08-31 | 2018-02-27 | 山东景昂智能装备有限公司 | A kind of stacking machine photoelectric sensor protection device |
| CN110631970A (en) * | 2019-09-16 | 2019-12-31 | 合肥福瞳光电科技有限公司 | Dynamic heating system and atmosphere ultrafine particle detector |
| CN110631970B (en) * | 2019-09-16 | 2022-07-26 | 合肥福瞳光电科技有限公司 | Dynamic heating system and atmosphere ultrafine particle detector |
| WO2021237502A1 (en) * | 2020-05-27 | 2021-12-02 | 深圳市泛海三江电子股份有限公司 | Fire detector for preventing false alarms and method of use |
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Application publication date: 20170531 |
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