CN211628362U - Smoke alarm with improved sensitivity - Google Patents
Smoke alarm with improved sensitivity Download PDFInfo
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- CN211628362U CN211628362U CN201922501580.3U CN201922501580U CN211628362U CN 211628362 U CN211628362 U CN 211628362U CN 201922501580 U CN201922501580 U CN 201922501580U CN 211628362 U CN211628362 U CN 211628362U
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- 239000000779 smoke Substances 0.000 title claims abstract description 41
- 230000035945 sensitivity Effects 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000009423 ventilation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 230000008447 perception Effects 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 abstract 1
- 230000009471 action Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910052695 Americium Inorganic materials 0.000 description 1
- LXQXZNRPTYVCNG-UHFFFAOYSA-N americium atom Chemical compound [Am] LXQXZNRPTYVCNG-UHFFFAOYSA-N 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The utility model discloses an increase smoke alarm of sensitivity, which comprises a housin, be provided with the controller in the casing and be connected the smoke transducer with the controller electricity, the casing downside is provided with the collection cover of falling hopper form, and the lamp shade has been cup jointed to the inside of collecting the cover, evenly is provided with a plurality of water conservancy diversion piece between collection cover and the lamp shade, and the first air vent with the inside intercommunication of casing is all seted up to the lateral wall under the water conservancy diversion piece corresponds the casing between the adjacent. When the air with smog got into and collects the cover, the air density that is heated is little, and the in-process that rises upwards soaks, and the air is further concentrated at the collection cover of inverted funnel shape, finally gets into inside the casing through first air vent, even the smog volume is less like this, also can collect smog through the effect of collecting the cover, improves smoke transducer's perception sensitivity.
Description
Technical Field
The utility model belongs to the technical field of smoke alarm, especially, relate to a smoke alarm who improves sensitivity.
Background
The smoke alarm is composed of two parts: one part is the inductive transducer who is used for detecting smog, the second part is electron speaker and the light display that the sound is very loud, in case take place danger can in time alert people, smoke alarm utilizes the positive of radiation source americium ionization production, the anion, move to positive negative pole respectively under the effect of electric field, under normal circumstances, the electric current of inside and outside ionization chamber, the voltage is stable, in case there is smog to flee the outer ionization chamber of escaping, the normal motion of charged particle has been disturbed, the electric current, the voltage just can change to some extent, the balance between the inside and outside ionization chamber has been destroyed, then wireless transmitter sends wireless alarm signal, inform the host computer of the distant place, transmit alarm information.
The existing smog type alarm is hung on the upper side of a wall in a hanging mode, when a fire disaster occurs, air is heated to expand and rises to spread upwards, smog flows to the smog type alarm and triggers the alarm, but an induction system of the smog type alarm is not intelligent enough, the fire disaster occurs in a small range, the smog amount is limited, the smog amount collected by the smog type alarm is not enough to trigger an alarm device, and the fire disaster cannot be notified at the first time, so that great loss is caused.
Therefore, the utility model discloses mainly solve because the conflagration takes place the initial stage, under the condition that its smog volume is few, the problem that smog type alarm can not sensitive perception conflagration emergence.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an improve smoke alarm of sensitivity, main solution is because the conflagration emergence initial stage, under the condition that its smog volume is few, the problem that smog type alarm can not sensitive perception conflagration emergence.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme:
a smoke alarm with improved sensitivity comprises a shell, wherein a controller and a smoke sensor electrically connected with the controller are arranged in the shell, and a bulb is further arranged on the lower side of the shell and electrically connected with the controller;
an inverted funnel-shaped collecting cover is arranged on the lower side of the shell, an inverted funnel-shaped lampshade is sleeved in the collecting cover, and the bulb is installed in the lampshade;
a plurality of flow deflectors are evenly arranged between the collecting cover and the lampshade, and first vent holes communicated with the inside of the shell are formed in the lower side wall of the shell corresponding to the flow deflectors between adjacent flow deflectors.
Further, a smoke alarm of improvement sensitivity, the casing lateral wall is provided with a plurality of second ventholes, second venthole ring casing axis evenly sets up.
Further, a sensitivity of the smoke alarm is improved, a separating sheet is arranged inside the shell and located between the second vent hole and the smoke sensor, the separating sheet is in an arc shape arched upwards, and a through hole is formed in the top of the arc shape on the upper side of the separating sheet.
The utility model discloses following beneficial effect has:
(1) when the air with smog got into and collects the cover, the air density that is heated is little, and the in-process that rises upwards soaks, and the air is further concentrated at the collection cover of inverted funnel shape, finally gets into inside the casing through first air vent, even the smog volume is less like this, also can collect smog through the effect of collecting the cover, improves smoke transducer's perception sensitivity.
(2) The shell is divided into an upper cavity and a lower cavity by the separating sheet, elements such as a controller and a smoke sensor are arranged in the lower cavity, the separating sheet is arched upwards and is arc-shaped, when air with smoke enters the lower cavity, the air with the smoke is in a circulating state under the action of the separating sheet and slowly enters the upper cavity through the through hole, the smoke sensor in the lower cavity of the separating sheet can fully sense the smoke, and the sensitivity is improved.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1: the utility model discloses the schematic structure.
FIG. 2: the utility model discloses the structure chart.
FIG. 3: the utility model discloses gas collecting channel structure picture.
In the drawings, the components represented by the respective reference numerals are listed below:
the device comprises a shell 1, a controller 2, a smoke sensor 3, a bulb 4, a collecting cover 5, a lampshade 41, a flow deflector 51, a first vent hole 52, a second vent hole 11, a separating sheet 12 and a through hole 13.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
As shown in fig. 1, 2, and 3: a smoke alarm with improved sensitivity comprises a shell 1, wherein a controller 2 and a smoke sensor 3 electrically connected with the controller 2 are arranged in the shell 1, a bulb 4 is further arranged on the lower side of the shell 1, and the bulb 4 is electrically connected with the controller 2; the shell is in a circular tube shape, the upper side wall of the shell is fastened on the upper side wall of the room through bolts,
an inverted funnel-shaped collecting cover 5 is arranged on the lower side of the shell 1, an inverted funnel-shaped lampshade 41 is sleeved inside the collecting cover 5, and the bulb 4 is installed in the lampshade 41; the opening angle of the opening side of the funnel-shaped collecting cover is more than 120 degrees, the narrow opening side of the collecting cover is connected with the circumferential side wall of the lower side of the shell, the opening angle of the opening side of the lower side of the lampshade is 60-90 degrees, and a wider annular cavity is arranged between the collecting cover and the lampshade.
A plurality of flow deflectors 51 are uniformly arranged between the collecting cover 5 and the lampshade 41, and first vent holes 52 communicated with the inside of the shell 1 are formed in the lower side wall of the shell 1 corresponding to the flow deflectors 51 between adjacent two. The annular cavity is divided into a plurality of air inlet channels through the flow deflectors, and each air inlet channel corresponds to one first vent hole.
Due to the flowing irregularity of the air, when the air with the smoke enters the collecting cover, the heated air is low in density, and in the process of rising upwards, the air is further concentrated in the inverted funnel-shaped collecting cover and finally enters the shell through the first vent hole, so that the smoke can be collected under the action of the collecting cover even if the smoke amount is small, and the sensing sensitivity of the smoke sensor is improved. Wherein, the function of water conservancy diversion piece is that the air that prevents to get into the collection cover plays the interference effect that receives other external air again.
As shown in fig. 1: the lateral wall of the shell 1 is provided with a plurality of second vent holes 11, and the second vent holes 11 are uniformly arranged around the axis of the shell 1.
The second vent hole is arranged at the position, close to the mounting wall body, of the upper portion of the shell body and used for forming an air circulation channel, so that air becomes circulation, the air with smoke can enter the shell body conveniently, the air is heated and rises to impact the wall body when a fire breaks out, then the air flows along the plane of the wall body, the air flow near the second vent hole is accelerated simultaneously in the process that the air flows along the plane of the wall body, and according to the Bernoulli principle, under the local pressure with high flow rate, the air flow rate of the second vent hole is larger than that of the first vent hole, and the air suction effect of the.
As shown in fig. 1: a separating sheet 12 is arranged inside the shell 1, the separating sheet 12 is located between the second vent hole 11 and the smoke sensor 3, the separating sheet 12 is in an upward arched arc shape, and a through hole 13 is formed in the top of the upper arc of the separating sheet 12.
The shell is divided into an upper cavity and a lower cavity by the separating sheet, elements such as a controller and a smoke sensor are arranged in the lower cavity, the separating sheet is arched upwards and is arc-shaped, when air with smoke enters the lower cavity, the air with the smoke is in a circulating state under the action of the separating sheet and slowly enters the upper cavity through the through hole, the smoke sensor in the lower cavity of the separating sheet can fully sense the smoke, and the sensitivity is improved.
In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (3)
1. A smoke alarm with improved sensitivity comprises a shell (1), wherein a controller (2) and a smoke sensor (3) electrically connected with the controller (2) are arranged in the shell (1), a bulb (4) is further arranged on the lower side of the shell (1), and the bulb (4) is electrically connected with the controller (2); the method is characterized in that:
an inverted funnel-shaped collecting cover (5) is arranged on the lower side of the shell (1), an inverted funnel-shaped lampshade (41) is sleeved in the collecting cover (5), and the bulb (4) is installed in the lampshade (41);
a plurality of flow deflectors (51) are uniformly arranged between the collecting cover (5) and the lampshade (41), and first air holes (52) communicated with the inside of the shell (1) are formed in the lower side wall of the shell (1) corresponding to the flow deflectors (51) between the adjacent parts.
2. An enhanced sensitivity smoke alarm as claimed in claim 1 wherein: the side wall of the shell (1) is provided with a plurality of second vent holes (11), and the second vent holes (11) are uniformly arranged around the axis of the shell (1).
3. An enhanced sensitivity smoke alarm as claimed in claim 2 wherein: the novel smoke sensor is characterized in that a separating sheet (12) is arranged inside the shell (1), the separating sheet (12) is located between the second ventilation hole (11) and the smoke sensor (3), the separating sheet (12) is in an upwards arched arc shape, and a through hole (13) is formed in the top of the upper side arc of the separating sheet (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922501580.3U CN211628362U (en) | 2019-12-31 | 2019-12-31 | Smoke alarm with improved sensitivity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922501580.3U CN211628362U (en) | 2019-12-31 | 2019-12-31 | Smoke alarm with improved sensitivity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211628362U true CN211628362U (en) | 2020-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922501580.3U Active CN211628362U (en) | 2019-12-31 | 2019-12-31 | Smoke alarm with improved sensitivity |
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| Country | Link |
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| CN (1) | CN211628362U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113611073A (en) * | 2021-07-27 | 2021-11-05 | 北京众合安消防技术有限公司 | Quick detection device of fire alarm system |
| CN114419833A (en) * | 2022-01-25 | 2022-04-29 | 维刻科技(深圳)有限公司 | Dustproof smoke alarm equipment for large warehouse |
-
2019
- 2019-12-31 CN CN201922501580.3U patent/CN211628362U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113611073A (en) * | 2021-07-27 | 2021-11-05 | 北京众合安消防技术有限公司 | Quick detection device of fire alarm system |
| CN114419833A (en) * | 2022-01-25 | 2022-04-29 | 维刻科技(深圳)有限公司 | Dustproof smoke alarm equipment for large warehouse |
| CN114419833B (en) * | 2022-01-25 | 2024-06-28 | 深圳市安消技术有限公司 | Dustproof smoke alarm equipment for large warehouse |
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