CN204142670U - A kind of detecting alarm - Google Patents
A kind of detecting alarm Download PDFInfo
- Publication number
- CN204142670U CN204142670U CN201420536231.XU CN201420536231U CN204142670U CN 204142670 U CN204142670 U CN 204142670U CN 201420536231 U CN201420536231 U CN 201420536231U CN 204142670 U CN204142670 U CN 204142670U
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- cover housing
- alarm
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- lower cover
- circuit
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Abstract
The utility model discloses a kind of detecting alarm, also comprises: a shell, and comprise a upper cover housing and a lower cover housing, this upper cover housing is fixedly connected with this lower cover housing, to form an accommodation space between upper cover housing and lower cover housing; One detection alarm circuit board, is arranged in this accommodation space; And a mounting disc, be arranged at the bottom of lower cover housing, between lower cover housing and mounting disc, be formed with the dish wire casing of the unnecessary power lead of a winding.
Description
Technical field
The utility model relates to a kind of detecting alarm, especially can detect the detecting alarm of two kinds of gases simultaneously.
Background technology
In current life of urban resident, almost every household all can use combustion gas, in different regions, the gas families used is different, has rock gas (principal ingredient methane), liquefied gas (principal ingredient propane), coal gas (principal ingredient hydrogen or carbon monoxide).Due to specific physical, the chemical attribute of combustion gas, the security of its application particularly merits attention.In order to ensure the person and the safety of property, there is now the product of various detection gas leakage warning on the market, also having various utility model technology.By the analysis to existing gas alarm product, discovery is all the warning of pure gas kind, such as only detects methane or propane, or only detects carbon monoxide or hydrogen.Its object is only and prevents the leakage of burning line from meeting accident.
Main application no matter for which kind of gas utensil (gas heater, fuel wall hanging dual-purpose stove, gas kitchen ranges) combustion gas is burning, as long as just likely there is rough burning phenomenon in burning, rough burning will produce carbon monoxide, carbon monoxide is toxic and harmful, it is annual because the casualty accident that anthracemia causes happens occasionally, appear in the newspapers end repeatly, so kitchen safety is the important topic that relevant departments carry out studying always.Another one security fields in kitchen are fire prevention, so often can place fire detector in kitchen.The security precautions of individual user is comparatively strong, can install Fuel Gas Leak Alarm, carbon monoxide alarm, fire-alarm respectively, to tackle different abnormal accidents.Multiple alarm detector will be laid in such kitchen, very large waste is caused to social resources.
So the producer had at present just develops the alarm that can detect two kinds of gases, such as methane and carbon monoxide.Its object is exactly the carbon monoxide of the insufficient generation of gas leakage and fuel gas buring in order to prevent kitchen.But this series products majority existing is employing two gas sensors, detects methane and carbon monoxide respectively.Because the Wuli-Shili-Renli system approach of these two kinds of gases is inconsistent, the principle of work detecting the sensor of this two classes gas is also inconsistent, and most semiconductor or catalytic combustion type sensor of adopting detects methane, uses electrochemical transducer[sensor to detect carbon monoxide.Its mission life of the sensor of two kinds of different principle and technological disparity differ greatly, so can cause the life-span of whole alarm " shortening ", technical feature " narrows ", and cost also increases simultaneously.
Secondly, because alarm needs power supply, or need externally to provide IO interface, connection wire must be had.By the installation requirement of building structure with other equipment, required connection wire length is uncertain.In general alarm with wire slightly have more than needed, not the scene of advising go increase wire, remaining wire may be had when so just causing connecting at the scene, if unnecessary wire is cut, just fall short of once its wire of needs mobile device.If do not cut unnecessary wire, then just use unsightly in the family.
Thirdly, general electrical equipment or product have its mission life, generally have now the life-span of correlation standard electric equipment products.For ordinary consumer, do not know that these specify, and also generally cannot remember product be when buy or dispatch from the factory, the product immediately had posts life-span overdue mark, and user is generally also difficult to check or notice.Particularly for security products, once exceed its mission life, just lose guarantee for consumers, equal, " deception " consumer, to considerably increase potential safety hazard.
For above the problems of the prior art, urgently research and develop a novel detecting alarm.
Utility model content
The purpose of this utility model is to provide a kind of detecting alarm, cannot detect at least two kinds of gases to overcome same acquisition sensor in prior art, the life of product caused is affected simultaneously, increases cost, and cannot safety instruction be carried out, the security hidden trouble brought to the life-span of product.
For achieving the above object, the utility model provides a kind of detecting alarm, it is characterized in that, also comprises:
One shell, comprise a upper cover housing and a lower cover housing, described upper cover housing is fixedly connected with described lower cover housing, to form an accommodation space between described upper cover housing and described lower cover housing;
One detection alarm circuit board, is arranged in described accommodation space;
One mounting disc, is arranged at the bottom of described lower cover housing, is formed with the dish wire casing of the unnecessary power lead of a winding between described lower cover housing and described mounting disc.
Above-mentioned detecting alarm, is characterized in that, described upper cover housing comprises further:
One temperature sensing cage, is placed in the front surface of described upper cover housing; Multiple run through described upper cover housing appear hole; Multiple air admission hole running through described upper cover housing; One self-inspection button and an external interface, be arranged at described shell of top cover body side surface.
Above-mentioned detecting alarm, is characterized in that, described lower cover housing comprises further:
One cable positioning device, is arranged at the bottom of described lower cover housing.
Above-mentioned detecting alarm, is characterized in that, described detection alarm circuit board comprises:
One can carry out the microprocessor exceeding the time limit to limit alarm;
One sensor simultaneously detecting gas with various, is connected to described microprocessor, and corresponding described air admission hole is arranged;
One temperature detection control circuit carrying out temp sensing type fire alarm and temperature compensation, is connected to described microprocessor.
Above-mentioned detecting alarm, is characterized in that, described detection alarm circuit board also comprises:
The external linkage control circuit of one external output system state level, is connected to described microprocessor;
The telecommunication circuit of one external output system signal, is connected to described microprocessor.
Above-mentioned detecting alarm, is characterized in that, described detection alarm circuit board also comprises: be connected to a power circuit of described microprocessor, a smooth indicating circuit, an audible alarm circuit, and multiple external interface.
Above-mentioned detecting alarm, is characterized in that, described temperature detection control circuit also comprises a thermistor, and the non-sensitive part of described thermistor appears hole by one and leans out described shell of top cover external body and be placed in described temperature sensing cage.
Above-mentioned detecting alarm, it is characterized in that, described smooth indicating circuit also comprises a malfunction indicator lamp and multiple alarm lamp, described power circuit also comprises a power light, and the hole of appearing of described malfunction indicator lamp, described alarm lamp described upper cover housing corresponding to described power light is arranged.
Above-mentioned detecting alarm, is characterized in that, described detection alarm circuit board also comprises a self-checking circuit, is connected to described microprocessor, and corresponding described self-inspection button is arranged.
Above-mentioned detecting alarm, is characterized in that, described mounting disc also comprises the fixture of a fixing described detecting alarm.
Compared with prior art, the utility model has the following advantages: the sensor that the detecting alarm that the utility model provides adopts can detect at least two kinds of gas with various simultaneously; Detecting alarm employing dish wire casing design of the present utility model, can be wound around unnecessary power lead, improve the aesthetic degree that product uses; Meanwhile, detecting alarm of the present utility model provides product prompting function in serviceable life, improves product safety in utilization.
Accompanying drawing explanation
Fig. 1 is the Facad structure schematic diagram of detecting alarm of the present utility model;
Fig. 2 is the side structure schematic diagram of detecting alarm of the present utility model;
Fig. 3 is the lower cover shell structure schematic diagram of detecting alarm of the present utility model;
Fig. 4 is the board structure of circuit schematic diagram of the utility model detecting alarm.
Wherein, Reference numeral:
1 upper cover housing 2 lower cover housing
3 detection alarm circuit board 4 mounting discs
5 dish wire casing 6 temperature sensing cages
7 appear hole 8 air admission hole
9 self-inspection button 10 external interfaces
11 cable positioning device 41 fixtures
Embodiment
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
As shown in FIG. 1 to 3, detecting alarm provided by the invention, comprising:
One shell, comprise upper cover housing 1 and a lower cover housing 2, upper cover housing 1 is fixedly connected with by stationary installation with lower cover housing 2, forms an accommodation space between upper cover housing 1 and lower cover housing 2; One detection alarm circuit board 3 is set in this accommodation space; One mounting disc 4, is arranged at the bottom of lower cover housing 2, is formed with the dish wire casing 5 of the unnecessary power lead of a winding between lower cover housing 2 and mounting disc 4.Wherein, lower cover housing 2 also comprises a cable positioning device 11, is arranged at the bottom of lower cover housing 2; Mounting disc 4 also comprises the fixture 41 of a fixing detecting alarm.
Wherein, upper cover housing 1 also comprises a temperature sensing cage 6, is placed in the front surface of upper cover housing 1; The front surface of upper cover housing 1 be also provided with multiple run through upper cover housing 1 appear hole 7 and multiple air admission hole 8 running through upper cover housing 1; Self-inspection button 9 and an external interface 10 is also provided with in upper cover housing 1 side.
This example mid-game wire casing 5 is between alarm lower cover housing 2 and mounting disc 4.Lower cover housing 2 and mounting disc 4 are respectively by two pieces of mould moldings, between lower cover housing 2 and mounting disc 4, a reelable dish wire casing 5 is formed after lower cover housing 2 and mounting disc 4 being assembled in production, have the cable positioning device 11 of a fixed cable in the bottom of lower cover housing 2, this locating device is a snap fit simultaneously.Complete machine produce time or in-site installation time, unnecessary wire can be wrapped in this dish wire casing 5, after winding, wire is fixed to the cable positioning device 11 bottom lower cover, cabling unnecessary so is just perfectly hidden into complete machine inside, serves effect attractive in appearance.
Wherein, as shown in Figure 4, detection alarm circuit board 3 comprises: a microprocessor 31; Be connected to sensor 32 and the temperature detection control circuit 33 of microprocessor 31, sensor 32 is for detecting gas with various simultaneously, and corresponding air admission hole 8 is arranged; Temperature detection control circuit 33 carries out temp sensing type fire alarm and temperature compensation; Detection alarm circuit board 3 also comprises: the external linkage control circuit 34 and the telecommunication circuit 35 that are connected to microprocessor 31, and external linkage control circuit 34 is for external output system state level, and telecommunication circuit 35 is externally output system signal.
Further, detection alarm circuit board 3 also comprises: smooth indicating circuit 37, the audible alarm circuit 38 of a power circuit 36, being connected to microprocessor 31, multiple external interface 39 and a self-checking circuit 30, the corresponding self-inspection button 9 of this self-checking circuit 30 is arranged.
Microprocessor 31 the present embodiment adopts microchip company PIC16F73 single-chip microcomputer, and as shown in Figure 4, sensor 32 can detect methane and carbon monoxide two kinds of gases according to different heating-up temperatures.When sensor 32 is in high power heating process, sensor 32 is in CH_4 detection process, now sensor 32 concentration of methane gas signal can be converted to electric signal by GAS end be input in single-chip microcomputer.Single-chip microcomputer collects this signal and compares according to presetting alerting signal, judges in current environment, whether methane exceedes setting value.When sensor 32 is in low-power heating process, sensor 32 is in Carbon Monoxide Detection process, and now sensor 32 can convert carbon monoxide gas concentration signal to electric signal, the similar methane process of processing mode of single-chip microcomputer.Single-chip microcomputer holds the switch of control V1MOS pipe by HEAT, and then controls the heat energy size of sensor 32, realizes the switching of high power heating and low-power heating, and then realizes the function that a sensor 32 detects two kinds of gas alarm simultaneously.When sensor adds up service time and exceed after it promises to undertake life-span, microprocessor 31 according to timing degree prompting sensor failure fault, and sends acousto-optic alarm, prevents sensor to extend service in the army the detection Problem of Failure caused.
The utility model uses a sensor 32 for semiconductor-type sensors, by the gas to be measured that the air admission hole 8 being arranged at upper cover housing 1 is collected, realize the detection of two kinds of gases, detect methane and carbon monoxide simultaneously, or propane and carbon monoxide, or hydrogen and carbon monoxide.So just can detect gas leakage alarm simultaneously, and the carbonic oxide alarming of the insufficient generation of burning.While carrying out gas detect, increase temperature detection, realize the fire alarm of temp sensing type, this is also the relevant safety regulations meeting Chinese kitchen.Such cost of products reduces, and the life-span of product also can not influence each other because of the characteristic of two kinds of gases simultaneously, makes user buy a Realization of Product multiple protective, also saves social resources.
Japanese FIS company SB-95 semiconductor-type sensors is used in the utility model specific embodiment, by controlling the heating power of sensor, make the sensitive material circuit working of its inside in different temperature, its sensitive material just reveals distinctive sensitivity characteristic (change of output resistance) to different gas meters, and then detects the gas needing to detect.According to the alarm threshold of processor internal preset, just can realize gas and surpass thresholding warning.By the heating power of processor Time-sharing control sensor, realize timesharing and detect different gas, and then realize using same sensor to detect the function of gas with various.
Wherein, in order to the change of better testing environment temperature, temperature detection control circuit 33 also comprises a thermistor 331, the non-sensitive part of thermistor 331 appears hole 7 by one and leans out upper cover housing 1 outside and be placed in temperature sensing cage 6, the hole 7 of appearing that the non-sensitive part of this thermistor 331 is corresponding is arranged in temperature sensing cage 6, is preferably arranged at the center of temperature sensing cage 6.
In this example, temperature sensing cage 6 is positioned at the front surface of upper cover housing 1, by different mould moldings during production.A firmly upper cover is combined into by viscose glue or the mode such as heat seal, distortion insertion after two structural member processing.During final assembly, the non-sensitive part of thermistor 331 appears hole 7 through between outside and temperature sensing cage 6 from shell; this temperature sensing cage 6 adopts claw-like structures; the multiple parallel pawl pin comprising a disk-like structure and stretch out from this disk-like structure periphery; the utility model preferred embodiment is that this temperature sensing cage 6 can prevent the object contact of diameter more than 5 ~ 8 millimeters to the non-sensitive part of thermistor 331, and then again can available protecting thermosensitive device while realizing temperature detecting function.
Thermistor RT and fixed resistance R1 dividing potential drop is used in this example, detection voltage exports, according to the temperature characterisitic (corresponding relation of temperature and resistance value) of thermistor RT, by the computing function of processor 31, just can calculate current temperature, again according to the alarm threshold of processor 31 inside, just temperature alarming function can be realized.In the temperature sensing circuit of this thermistor RT, fixed resistance R1 composition, the different manifestations of thermistor RT environmentally temperature goes out different resistance values, and then exports the magnitude of voltage of different size from fixed resistance R1.Single-chip microcomputer is by this change in voltage of TEMP Port detecting and derive the size of current temperature value, goes out currently whether to occur that overtemperature is dangerous according to the characteristic analysis of temperature variation simultaneously.This temperature is also as temperature compensation input simultaneously, for the calculating correction of These gases sensor.
After warning being detected for alarm, external linkage control circuit 34 can control some external units as required, such as: start blower fan air draft, valve-off, close other device power supply (DPS)s, start external acousto-optical etc.Concrete opertaing device object is different, and its circuit interface is different, and can adopt relay, controllable silicon, transistor, metal-oxide-semiconductor etc., its circuit engineering is current techique, no longer discusses in detail herein.
Realization of Product external communicating circuit 35 function, can have diversified hardware technology scheme and software engineering scheme, and the communication as digital quantity can have: Transistor-Transistor Logic level, RS232, RS485, CAN communication, distribution line carrier etc.; The communication of switching value has: PWM pulsewidth, switching value level, the output of light-coupled isolation level etc.; Also can by wired mode or wireless mode etc., can be one-way communication also can be both-way communication.Its technology maturation and general, no longer discusses in detail herein.The object of external communication is that this product is had mutual interface with extraneous, is convenient to the extraneous related data or the state that obtain this product, or controls this product.This product has the interface function to other equipment, such as this Product Status can be passed to gas utensil, carries out other further action process by gas utensil.
The power circuit 36 of this new design, its power technology is very ripe, and technology is also general, can adopt a lot of scheme to realize, and no longer discusses in detail herein.
Light indicating circuit 37 also comprises a malfunction indicator lamp 371 and multiple alarm lamp 372, power circuit 36 also comprises a power light 361, the hole 7 of appearing of malfunction indicator lamp 371, alarm lamp 372 upper cover housing 1 corresponding to power light 361 is arranged, from appearing the light flash appearing each pilot lamp above-mentioned hole 7, to carry out light alarm prompt to user.
Light indicating circuit 37 can adopt LED light emitting diode, or charactron, or LCD display, can show the running status of product, and such as sensor preheating, fault, warning, interlock export instruction, communication LED status.Its circuit engineering is current techique, no longer discusses in detail herein.
Audible alarm indicating circuit 38 can adopt loudspeaker or hummer.When alarm has abnormal (fault or warning) send different sound or tone and report to the police, come into the picture.Its circuit engineering is current techique, no longer discusses in detail herein.
There is in this combustible gas detecting alarm multiple external interface 39, its objective is to the alerting signal of alarm be exported or inputting instruction accordingly from peripheral hardware acquisition.This interface mode is varied, there are in this example electric capacity output interface, direct current output interface, passive relay output interface and TTL serial communication interface etc. simultaneously, when alarm does not detect methane oxidizing archaea or carbon monoxide surpasses concentration, electric capacity output interface, direct current output interface all export high resistant, passive relay exports normal ON signal, uses during TTL communication interface inquiry alarm status and exports normal operating conditions; When after alarm equipment alarm, the electromagnetic valve that electric capacity output interlock is attached thereto or mechanical arm etc., direct current exports high level and also drives other external units be attached thereto, and passive relay exports normally closed signal, uses TTL communication interface inquiry alarm status alarm device output alarm state.
Certainly, according to the difference of functional requirement, the function of external output interface is also varied.As aforementioned direct current output interface may export high level when alarm normal condition; and state switches to direct current low level or pulse signal etc. after warning; enumerate its various output state combination herein no longer one by one; but alerting signal is outputted to other external units or the process from external unit acquisition signal, all by the protection of this utility model by this kind of form or similar this kind of form.
The utility model is to disclose as above; but above-described embodiment just illustrates; and be not used to limit the utility model; those skilled in the art can carry out reasonable variation to above-described embodiment according to actual needs, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by the utility model.
Claims (10)
1. a detecting alarm, is characterized in that, also comprises:
One shell, comprise a upper cover housing and a lower cover housing, described upper cover housing is fixedly connected with described lower cover housing, to form an accommodation space between described upper cover housing and described lower cover housing;
One detection alarm circuit board, is arranged in described accommodation space;
One mounting disc, is arranged at the bottom of described lower cover housing, is formed with the dish wire casing of the unnecessary power lead of a winding between described lower cover housing and described mounting disc.
2. detecting alarm according to claim 1, it is characterized in that, described upper cover housing comprises further:
One temperature sensing cage, is placed in the front surface of described upper cover housing; Multiple run through described upper cover housing appear hole; Multiple air admission hole running through described upper cover housing; One self-inspection button and an external interface, be arranged at described shell of top cover body side surface.
3. detecting alarm according to claim 1, it is characterized in that, described lower cover housing comprises further:
One cable positioning device, is arranged at the bottom of described lower cover housing.
4. detecting alarm according to claim 2, it is characterized in that, described detection alarm circuit board comprises:
One can carry out the microprocessor exceeding the time limit to limit alarm;
One sensor simultaneously detecting gas with various, is connected to described microprocessor, and corresponding described air admission hole is arranged;
One temperature detection control circuit carrying out temp sensing type fire alarm and temperature compensation, is connected to described microprocessor.
5. detecting alarm according to claim 4, it is characterized in that, described detection alarm circuit board also comprises:
The external linkage control circuit of one external output system state level, is connected to described microprocessor;
The telecommunication circuit of one external output system signal, is connected to described microprocessor.
6. detecting alarm according to claim 5, it is characterized in that, described detection alarm circuit board also comprises: be connected to a power circuit of described microprocessor, a smooth indicating circuit, an audible alarm circuit, and multiple external interface.
7. detecting alarm according to claim 4, it is characterized in that, described temperature detection control circuit also comprises a thermistor, and the non-sensitive part of described thermistor appears hole by one and leans out described shell of top cover external body and be placed in described temperature sensing cage.
8. detecting alarm according to claim 6, it is characterized in that, described smooth indicating circuit also comprises a malfunction indicator lamp and multiple alarm lamp, described power circuit also comprises a power light, and the hole of appearing of described malfunction indicator lamp, described alarm lamp described upper cover housing corresponding to described power light is arranged.
9. detecting alarm according to claim 6, it is characterized in that, described detection alarm circuit board also comprises a self-checking circuit, is connected to described microprocessor, and corresponding described self-inspection button is arranged.
10. detecting alarm according to claim 1, is characterized in that, described mounting disc also comprises the fixture of a fixing described detecting alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420536231.XU CN204142670U (en) | 2014-09-18 | 2014-09-18 | A kind of detecting alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420536231.XU CN204142670U (en) | 2014-09-18 | 2014-09-18 | A kind of detecting alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204142670U true CN204142670U (en) | 2015-02-04 |
Family
ID=52419350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420536231.XU Expired - Lifetime CN204142670U (en) | 2014-09-18 | 2014-09-18 | A kind of detecting alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204142670U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949164A (en) * | 2015-06-18 | 2015-09-30 | 苏州市职业大学 | Kitchen temperature monitoring device |
-
2014
- 2014-09-18 CN CN201420536231.XU patent/CN204142670U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949164A (en) * | 2015-06-18 | 2015-09-30 | 苏州市职业大学 | Kitchen temperature monitoring device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150204 |
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| CX01 | Expiry of patent term |