CN109243127A - A kind of reflexive two-way fire detector - Google Patents
A kind of reflexive two-way fire detector Download PDFInfo
- Publication number
- CN109243127A CN109243127A CN201811361253.6A CN201811361253A CN109243127A CN 109243127 A CN109243127 A CN 109243127A CN 201811361253 A CN201811361253 A CN 201811361253A CN 109243127 A CN109243127 A CN 109243127A
- Authority
- CN
- China
- Prior art keywords
- normal
- reflexive
- binding post
- sheet metal
- fire detector
- 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.)
- Pending
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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
Abstract
This application provides a kind of reflexive two-way fire detectors comprising: the first circuit being made of normal open binding post and the normal open sheet metal being set between the normal open binding post；The second circuit being made of normal off binding post and the normal off sheet metal being set between the normal off binding post；And metal detection piece, the metal detection piece is resisted against the normal open sheet metal and normal off sheet metal, and with make under unmanaged state first circuit be normal open road and the alternate path be normal off road first state and heating status under make that first circuit is open circuit and/or the alternate path is the second state of open circuit.In the case that the reflexive two-way fire detector of the application can guarantee the fire alarm detected in time, generating switching with the sheet metal of two sides simultaneously by metal detection piece, differently logical relation is judged, it avoids and malfunctions the case where generating false alarm when unilateral, greatly improve reliability.
Description
Technical field
The application belongs to fire detector design field, in particular to a kind of reflexive two-way fire detector.
Background technique
In order to monitor the fire behavior that helicopter piggyback pod may occur, currently used method is arranged double on a variety of helicopters
Metal type fire detector.Dual metal type fire detector mainly monitors the temperature parameter of ambient enviroment, when temperature anomaly increases
When, cause a sheet metal inside fire detector to generate warpage movement, makes the contact point off between sheet metal and binding post
It opens, issues fire alarm to Mechatronic Systems etc..
However in order to detect fire alarm rapidly, the outer protection cover of dual metal type fire detector is non-tight
Formula, it is chronically exposed to the sheet metal for detecting fire alarm in external environment, is easily contaminated internal contact point, pollutant
Resistance value can be made to become larger, when resistance value is excessive, or even false fire alarm can occur.When by water drenching, due to binding post and bottom
Plate conducting, also easily occurs false-alarm phenomenon.
Summary of the invention
The purpose of the application is any of the above-described to solve the problems, such as there is provided a kind of reflexive two-way fire detector.
The technical solution of the application is: a kind of reflexive two-way fire detector comprising: by normal open binding post and it is set to
The first circuit that normal open sheet metal between the normal open binding post is constituted；By normal off binding post and it is set to the normal off wiring
The second circuit that normal off sheet metal between column is constituted；And metal detection piece, the metal detection piece are resisted against the normal open
Sheet metal and normal off sheet metal, and first circuit is normal open road and the alternate path is with making under unmanaged state
It is breaking for making first circuit be the breaking and/or described alternate path under the first state and heating status on normal off road
Second state.
In one embodiment of the application, the metal detection piece includes that heat prolongs different the first sheet metal and second of coefficient
Sheet metal, between first sheet metal and the second sheet metal be equipped with insulating layer, in the first state, the metal detection piece at
Flat shape, in the second condition, the metal detection piece is at curved shape.
Further include pedestal in one embodiment of the application, the pedestal) for carrying the normal open binding post and described
Normal off binding post.
It further include insulating layer in one embodiment of the application, insulating layer setting is in the normal open binding post, described
Between normal off binding post and the pedestal.
It further include shell in one embodiment of the application, the shell is coated on the normal open sheet metal, normal off metal
The outside of piece and the metal detection piece, for protecting the metal detection piece.
In one embodiment of the application, the shell selects metal material of the thermal coefficient not less than 100W/mK.
In one embodiment of the application, the thickness of the shell is not more than 0.1mm.
In one embodiment of the application, the shell has interior teeth and outer teeth.
In one embodiment of the application, the section of the interior teeth and the outer teeth is triangle.
In one embodiment of the application, the normal open binding post and normal off binding post for being carried on the pedestal are apart from the bottom
The height of seat is different.
In the case that the reflexive two-way fire detector of the application can guarantee the fire alarm detected in time, pass through metal detection
Piece generates switching with the sheet metal of two sides simultaneously, and differently logical relation is judged, is avoided when unilateral malfunction generates mistake
The case where alarm, greatly improves reliability.
Detailed description of the invention
In order to illustrate more clearly of technical solution provided by the present application, attached drawing will be briefly described below.It is aobvious and easy
Insight, drawings discussed below are only some embodiments of the present application.
Fig. 1 is the reflexive two-way fire detector schematic illustration of the application；
Fig. 2 is the reflexive two-way fire detector structural schematic diagram of the application；
Fig. 3 is the reflexive two-way fire detector structural schematic diagram that shell is removed in the application；
Fig. 4 is the shell mechanism schematic diagram in the application.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application implementation clearer, below in conjunction in the embodiment of the present application
Attached drawing, technical solutions in the embodiments of the present application is further described in more detail.
In the description of the present application, term " center ", " longitudinal direction ", " transverse direction ", "front", "rear", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "top", "bottom", "inner", "outside" is that orientation based on the figure or position are closed
System is merely for convenience of description the application and simplifies description, rather than the device or element of indication or suggestion meaning must have
Specific orientation is constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application protection scope.
The purpose of the application provide it is a kind of can detect the enging cabin of aircraft or the fire detector in the cabin APU, and can be with
Prevent false alarm.
Therefore, the reflexive two-way fire detector of the application mainly include include: by normal open binding post 21,22 and to be set to
The first circuit that normal open sheet metal 23 between normal open binding post 21,22 is constituted, the first circuit are normal open circuit；By normal off wiring
The second circuit that column 31,32 and the normal off sheet metal 33 being set between normal off binding post 31,32 are constituted, second circuit is normal off
Circuit；And metal detection piece 1, metal detection piece 1 is resisted against normal open sheet metal 23 and normal off sheet metal 33, and has unmanaged
It can make that the first circuit remains normal open road and alternate path remains under the first state and heating status on normal off road under state
So that the first circuit is open circuit and/or alternate path is the second state of open circuit.
In this application, metal detection piece 1 includes that heat prolongs coefficient different the first sheet metal and the second sheet metal, the first gold medal
Belong to and be equipped with insulating layer between piece and the second sheet metal, under unmanaged state, metal detection piece 1 is at flat shape, in heated shape
Under state, since the stretch system of two metal sheets is different, metal detection piece 1 can bend, and contact can be made to disconnect
(or connection).
In this application, reflexive two-way fire detector further includes pedestal 4, and pedestal 4 is assembling structure, can be used for and its
The connection of its component is installed, and pedestal 4 is for carrying normal open binding post 21,22 and normal off binding post 31,32.
In this application, reflexive two-way fire detector further includes insulating layer 5, and insulating layer 5 is arranged in normal open binding post 21,
22, normal off binding post 31 between 32 and pedestal 4, can make to insulate between binding post and pedestal 4, and avoid water drenching by teeth
Influence.
In this application, reflexive two-way fire detector further includes shell 6, and shell 6 is coated on normal open sheet metal 23, normal off
The outside of sheet metal 33 and metal detection piece 1, so that electric parts avoids for a long time in the inside of shell in working environment
The generation of pollution condition.
In this application, shell 6 should select the preferable material of thermal conductivity, and shell 6 selects thermal coefficient to be not less than 100W/
Metal material of mK, such as selection copper, aluminium etc..
In this application, shell 6 should be thin as far as possible, and to guarantee preferable thermal conductivity, the thickness of shell 6 is not more than 0.1mm.
In in one embodiment of the application, shell 6 has interior teeth 61 and outer teeth 62, for conducting the temperature of environment,
Enhance heat-transfer effect.
In addition, teeth are arranged on binding post, when increased teeth can make to be influenced by water drenching, the wedge angle handle of teeth is utilized
Moisture film separates, and binding post is prevented to be connected with low plate, effectively avoids the influence that report false-alarm is generated when water drenching.
Preferably, the interior teeth 61 of shell 6 and the section of outer teeth 62 are triangle, under identical volume, are had
More heated heat-transfer area.
In one embodiment of the application, four binding posts of reflexive two-way fire detector have been divided into two-way, in order to from outer
Be explicitly shown out and distinguish in shape structure, to accomplish the design of error protection, therefore be carried on the normal open binding post 21,22 of pedestal 4 with
Height of the normal off binding post 31,32 apart from pedestal 4 is different.
In this application, interior teeth 62 can permit contacts with metal detection piece 1, but contact surface must face guarantee have resistance to height
Temperature, insulating layer are more advantageous to the conduction of heat in this way.
In this application, reflexive two-way fire detector is engaged with route, can carry out the inspection of line by route of playing a reversed role
(i.e. former path connections are connect with breaking binding post, and former open circuit wiring is connect with path connections column), carrying out test fire alarm route is
It is no normal.
The reflexive two-way fire detector that table 1 is the application of diagnosis referring to to(for) detection result.
Table 1
It can be seen that, the reflexive two-way fire detector of the application can greatly improve the accurate of fire detection from table
Rate excludes the case where erroneous judgement.
The reflexive two-way fire detector of the application is same by bimetal leaf in the case where the fire alarm for guaranteeing to detect in time
When and two sides sheet metal generate switching differently logical relation judged.It avoids when unilateral malfunction generates false alarm
The case where, greatly improve reliability.
The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any
Within the technical scope of the present application, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
Cover within the scope of protection of this application.Therefore, the protection scope of the application should be with the scope of protection of the claims
It is quasi-.
Claims (10)
1. a kind of reflexive two-way fire detector, which is characterized in that the reflexive two-way fire detector includes:
It is made of normal open binding post (21,22) and the normal open sheet metal (23) being set between the normal open binding post (21,22)
The first circuit；
It is made of normal off binding post (31,32) and the normal off sheet metal (33) being set between the normal off binding post (31,32)
Second circuit；And
Metal detection piece (1), the metal detection piece (1) are resisted against the normal open sheet metal (23) and normal off sheet metal (33),
And have and make that first circuit is normal open road and the alternate path is the first state on normal off road under unmanaged state, and
Making first circuit under heating status is the second state that the breaking and/or described alternate path is open circuit.
2. reflexive two-way fire detector as described in claim 1, which is characterized in that the metal detection piece (1) includes heat
Prolong coefficient different the first sheet metal and the second sheet metal, insulating layer be equipped between first sheet metal and the second sheet metal,
In the first state, the metal detection piece (1) is at flat shape, and in the second condition, the metal detection piece (1) is at bending
Shape.
3. reflexive two-way fire detector as claimed in claim 1 or 2, which is characterized in that further include pedestal (4), the bottom
Seat (4) is for carrying the normal open binding post (21,22) and the normal off binding post (31,32).
4. reflexive two-way fire detector as claimed in claim 3, which is characterized in that further include insulating layer (5), the insulation
Layer (5) is arranged between the normal open binding post (21,22), the normal off binding post (31,32) and the pedestal (4).
5. reflexive two-way fire detector as claimed in claim 4, which is characterized in that further include shell (6), the shell
(6) it is coated on the outside of the normal open sheet metal (23), normal off sheet metal (33) and the metal detection piece (1), for protecting
The metal detection piece (1).
6. reflexive two-way fire detector as claimed in claim 5, which is characterized in that the shell (6) selects thermal coefficient
Metal material not less than 100W/mK.
7. reflexive two-way fire detector as claimed in claim 6, which is characterized in that the thickness of the shell (6) is not more than
0.1mm。
8. the reflexive two-way fire detector as described in claim 5 to 7 is any, which is characterized in that the shell (6) has interior
Teeth (61) and outer teeth (62).
9. reflexive two-way fire detector as claimed in claim 4, which is characterized in that the interior teeth (61) and the external tooth
The section of tooth (62) is triangle.
10. reflexive two-way fire detector as described in claim 1, which is characterized in that be carried on the normal open of the pedestal (4)
Height of the binding post (21,22) from normal off binding post (31,32) apart from the pedestal (4) is different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811361253.6A CN109243127A (en) | 2018-11-15 | 2018-11-15 | A kind of reflexive two-way fire detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811361253.6A CN109243127A (en) | 2018-11-15 | 2018-11-15 | A kind of reflexive two-way fire detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109243127A true CN109243127A (en) | 2019-01-18 |
Family
ID=65074751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811361253.6A Pending CN109243127A (en) | 2018-11-15 | 2018-11-15 | A kind of reflexive two-way fire detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109243127A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070119361A1 (en) * | 2005-11-29 | 2007-05-31 | Daniel Chaniot | On-board thermostat and a system for detecting excess temperature |
| JP2013110034A (en) * | 2011-11-22 | 2013-06-06 | Komatsulite Mfg Co Ltd | Breaker |
| CN103489709A (en) * | 2013-09-24 | 2014-01-01 | 国家电网公司 | Electromagnetic type thermal relay |
| CN203760377U (en) * | 2014-02-19 | 2014-08-06 | 青岛中阳消防科技有限公司 | Temperature-sensitive switch with disconnection detection function and temperature-sensitive detector of temperature-sensitive switch |
| JP2014149973A (en) * | 2013-02-01 | 2014-08-21 | Calsonic Kansei Corp | Heat sensing device |
| CN204463348U (en) * | 2015-01-28 | 2015-07-08 | 保定博为世能电气有限公司 | The two trigger detector of a kind of transformer fire |
-
2018
- 2018-11-15 CN CN201811361253.6A patent/CN109243127A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070119361A1 (en) * | 2005-11-29 | 2007-05-31 | Daniel Chaniot | On-board thermostat and a system for detecting excess temperature |
| JP2013110034A (en) * | 2011-11-22 | 2013-06-06 | Komatsulite Mfg Co Ltd | Breaker |
| JP2014149973A (en) * | 2013-02-01 | 2014-08-21 | Calsonic Kansei Corp | Heat sensing device |
| CN103489709A (en) * | 2013-09-24 | 2014-01-01 | 国家电网公司 | Electromagnetic type thermal relay |
| CN203760377U (en) * | 2014-02-19 | 2014-08-06 | 青岛中阳消防科技有限公司 | Temperature-sensitive switch with disconnection detection function and temperature-sensitive detector of temperature-sensitive switch |
| CN204463348U (en) * | 2015-01-28 | 2015-07-08 | 保定博为世能电气有限公司 | The two trigger detector of a kind of transformer fire |
Non-Patent Citations (1)
| Title |
|---|
| 田永堂: "飞机发动机火警探测系统设计浅析", 《测控技术》 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190118 |
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| RJ01 | Rejection of invention patent application after publication |