CN2844730Y

CN2844730Y - Cooker hood with automatic air-exchanging function when gas leaking

Info

Publication number: CN2844730Y
Application number: CN 200520132392
Authority: CN
Inventors: 庞辉龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-29
Filing date: 2005-11-07
Publication date: 2006-12-06
Anticipated expiration: 2015-11-07

Abstract

The utility model discloses a cooking fume exhauster with an automatic air-exchanging function at the time of gas leakage, which is composed of two parts; one part is a gas detecting device and the other part is a host machine part of the cooking fume exhauster; the utility model comprises a traditional cooking fume exhauster and a wireless receiving device which is connected with the traditional cooking fume. The gas detecting device is provided with an electronic nose used for transmitting a wireless signal; the electronic nose is not arranged in the host machine of the cooking fume exhauster but is separated from the host machine; the host machine of the cooking fume exhauster is controlled to work by a wireless electric signal. A switch K1 of the host machine of the cooking fume exhauster is connected with a wireless receiving module which is used for receiving a wireless signal transmitted by the electronic nose and for controlling a fan motor of the cooking fume exhauster to work. After the electronic noise detects that the gas concentration in the air is over the standard, the wireless electric signal is emitted; the host machine of the cooking fume exhauster is remotely controlled to work; ventilation is carried out in time to dilute the gas concentration and prevent serious accidents from happening. The cooking fume exhauster completely avoids the ineffective phenomenon because of the corrosion of oil fume; therefore, the cooking fume exhauster works flexibly and reliably and has long service life.

Description

Smoke exhaust ventilator with the automatic ventilatory of gas leakage

Technical field

The utility model relates to the smoke exhaust ventilator technology, particularly relates to a kind of smoke exhaust ventilator that can get rid of imflammable gas such as coal gas, natural gas, liquefied petroleum gas and biogas automatically.

Background technology

Nowadays, the increasing home-use combustion gas of having gone up, it has been with facility for our life.But because itself there is certain toxicity in these gases, in a single day leak in the use, may cause serious accidents such as poisoning, fire and blast, serious harm people's life, property safety.Along with the raising of people's safety usefulness gas consciousness, people press for a kind of instrument that can in time detect gas leakage, rapid ventilation.At present, as the smoke exhaust ventilator of kitchen ventilation main tool, major part is a hand switch, when cooking, manually opens switch; Cooking finishes, and manually closes switch.A small amount of high-grade facility have gas monitoring, autostart function, but its sensor is installed on the smoke exhaust ventilator, have the following disadvantages: 1, because sensor is too near from gas-cooker, the oil smoke when cooking, steam can corrosion sensors, make its premature failure; 2, can sink during for heavy liquefied petroleum gas leakage, and the position of sensor is higher, can not effectively in time detect, exhaust; Little for proportion, as to accumulate in the top when leaking easily coal gas, natural gas etc. can not effectively detect, exhaust in time equally, thereby sensitivity is low, reliability is not high, and this function is discarded in practical process gradually.

The utility model content

Be directly installed on the smoke exhaust ventilator and lost efficacy easily and the low problem of sensitivity in order to solve sensor, the purpose of this utility model provide a kind of simple in structure, the life-span is grown, can effectively detect the smoke exhaust ventilator with the automatic ventilatory of gas leakage of timely exhaust to airborne combustion gas.

The technical solution of the utility model realizes in the following manner:

A kind of smoke exhaust ventilator with the automatic ventilatory of gas leakage, it is made up of two parts: the one, the combustion gas checkout gear; The 2nd, the smoke exhaust ventilator host machine part, it comprises the traditional smoke exhaust ventilator and the radio receiver of connection thereof.Its combustion gas checkout gear also claims Electronic Nose for detecting the fuel gas alarm of fuel gas, emission wireless signal; Electronic Nose is not located at main frame inside, but separates with main frame, by wireless signal remote control smoke exhaust ventilator host work; On smoke exhaust ventilator K switch 1, connect one and have the wireless signal that receives the Electronic Nose emission, the wireless receiving module of fan motor.

The signal of Electronic Nose emission can be electromagnetic wave, infrared ray or other forms of sound and optic signal.

Electronic Nose has a plurality of working station indicators or voice guard.

Fan electromotor has more than 1 or 2 or 2.

In the wireless receiving module outside or inside be provided with power regulator and provide dc supply for the smoke exhaust ventilator main frame.

Connect a plurality of indicator lamps and voice guard on the wireless receiving module, be installed on the panel of smoke exhaust ventilator, with the duty of indication smoke exhaust ventilator.

The relay of wireless receiving module inside is electronic switch, for example controllable silicon or solid-state relay etc.

The voice guard of wireless receiving module and Electronic Nose is buzzer or voice module.

The reception antenna of wireless receiving module can also can be in hull outside in host shell inside.

Illuminating lamp and K switch 2 in establishing, the smoke exhaust ventilator main frame are arranged.

The mounting distance of Electronic Nose and smoke exhaust ventilator is in 10 meters scopes.

Electronic Nose has the button K3 of direct startup smoke exhaust ventilator main frame.

The good effect that the utility model produced:

1, the designed smoke exhaust ventilator of the present invention, the wireless transmission mode is adopted in its combustion gas test section, the work of remote control smoke exhaust ventilator, avoided sensor because of oil smoke corrosion failure phenomenon fully, Electronic Nose can make its work sensitive more, reliable near installing near the source of the gas, and the life-span is longer.

2, the volume of Electronic Nose is small and exquisite, what remote signal adopted is radio wave, so Electronic Nose when installing in the kitchen not the recipient to the restriction of position, install more random, it is local arbitrarily it can be installed in the kitchen, and producer can be made in it wall lamp inside when producing, but both dual-use materials, it is attractive in appearance also can to decorate the kitchen.

3, Electronic Nose and wireless receiving module market price are lower, situation about producing in enormous quantities, can not make the cost of smoke exhaust ventilator increase too many, but also expanded the market value of smoke exhaust ventilator, this type of has the smoke exhaust ventilator of the automatic ventilatory of gas leakage, in the city the very big market space will be arranged.

Description of drawings

Fig. 1 is the connecting circuit schematic diagram of wireless receiving module of the present utility model in smoke exhaust ventilator main frame inside.

Fig. 2 is the structure diagram of combustion gas checkout gear of the present utility model.

Fig. 3 is a control flow chart of the present utility model.

Specific implementation method

By Fig. 1 and Fig. 2 as can be seen: smoke exhaust ventilator of the present utility model is made up of two parts, and the one, the combustion gas checkout gear; The 2nd, the smoke exhaust ventilator host machine part: it comprises the traditional smoke exhaust ventilator and the radio receiver of connection thereof.Its combustion gas checkout gear has the Electronic Nose 7 of 8.1,8.2, buzzers 9 of 2 light emitting diodes; Electronic Nose 7 is not located at smoke exhaust ventilator main frame inside, but separates with main frame, by radio signal control smoke exhaust ventilator host work; The receiving system that connects on the K switch 1 of smoke exhaust ventilator main frame is one and has the electromagnetic wave signal that receives the Electronic Nose emission, the fan electromotor 1.1,1.2 of control smoke exhaust ventilator and the wireless receiving module 3 of illuminating lamp 2.

It can also be seen that by Fig. 1, be provided with a power regulator 4 in wireless reception module 3 outsides and provide 12V dc supply for wireless receiving module 3; On wireless reception module 3, connect a red light emitting diodes 5.1, green LED 5.2, yellow light-emitting diode 5.3, a buzzer 6, be installed on the smoke exhaust ventilator panel, with the duty of indication smoke exhaust ventilator.

The Electronic Nose 7 and wireless receiving module 3 inventor select Shenzhen the plan strategies for YCF100A-RQ and the YCJSCON-2L/M type of company for use.YCF100A-RQ can launch electromagnetic fuel gas alarm.This covering device is through long period of experiments, is active in one's movements, reliable operation, can effectively detect imflammable gas such as natural gas, coal gas, liquefied petroleum gas and biogas.Wireless receiving module is installed in smoke exhaust ventilator main frame inside.

Electronic Nose is in the installation site in kitchen: for the user who uses liquefied petroleum gas, Electronic Nose is installed to lower as far as possible, is advisable to be no more than 10cm place, ground, because liquefied petroleum gas is heavier than air; For users such as the less coal gas of proportion, natural gas, biogas, the Electronic Nose installation that as far as possible hoists.During installation, click the direct start button K3 on the Electronic Nose, with the signal of judging Electronic Nose emission whether in smoke exhaust ventilator ground range of receiving.The transmitting range of Electronic Nose will be limited in 10 meters scopes, and the operate as normal of the smoke exhaust ventilator that transmitting range too far will interference neighbors man same model too closely then can make the smoke exhaust ventilator of oneself normally receive.

As seen from Figure 3, when Electronic Nose and smoke exhaust ventilator main frame are switched on respectively, Electronic Nose just begins to monitor gas concentration in the air, green indicating lamp 8.2 Chang Liang, and main frame is in holding state at this moment, green light 5.2 Chang Liang.When detection by electronic nose when gas concentration exceeds standard in air, start to control threshold value setting at 10%～25%LEL, red led 8.1 flickers, buzzer 9 pipes, while transmitting radio magnetic wave, after wireless receiving module 3 in the smoke exhaust ventilator main frame receives signal, time-delay 10s, red led 5.1 flickers, buzzer 6 pipes, inner simultaneously electronic switch gets electric closure, be equivalent to power switch K1 is connected, the run indicator 5.3 in the main frame is bright, fan electromotor 1.1,1.2 get electric work, the beginning ventilation, start to control when a little following when airborne gas concentration drops to, Electronic Nose 7 stops sound and light alarm, also stops to launch electromagnetic wave, the smoke exhaust ventilator main frame also stops sound and light alarm, the electronic switch of wireless receiving module 3 inside disconnects, and is equivalent to K switch 1 and disconnects, and run indicator 5.3 is gone out, motor 1.1,1.2 quit work, main frame returns to holding state.

When the user cooks, thinking the start-up by hand smoke exhaust ventilator, direct Closing Switch K1, at this moment, no matter main frame is in any state, and it all can normally start operation.

Claims

1, a kind of smoke exhaust ventilator with the automatic ventilatory of gas leakage, form by combustion gas checkout gear and smoke exhaust ventilator host machine part, the combustion gas checkout gear separates with the smoke exhaust ventilator main frame, host machine part is provided with wireless receiving module, it is characterized in that: the Electronic Nose (7) of combustion gas checkout gear for launching wireless signal, the wireless receiving module of responding to Electronic Nose (7) remote control (3) is installed in smoke exhaust ventilator main frame inside.

2, the smoke exhaust ventilator with the automatic ventilatory of gas leakage according to claim 1 is characterized in that: wireless receiving module (3) is connected with smoke exhaust ventilator host switch K1.

3, the smoke exhaust ventilator with the automatic ventilatory of gas leakage according to claim 2 is characterized in that: Electronic Nose (7) is Electronic Nose or the Electronic Nose of emission optical signal or the Electronic Nose of electromagnetic signals of emission acoustical signal.

4, the smoke exhaust ventilator with the automatic ventilatory of gas leakage according to claim 3 is characterized in that: Electronic Nose (7) panel is provided with working station indicator (8) or/and voice guard (9).

5, the smoke exhaust ventilator with the automatic ventilatory of gas leakage according to claim 4 is characterized in that: the button K3 that direct startup smoke exhaust ventilator is arranged on Electronic Nose (7) panel.

6, the smoke exhaust ventilator with the automatic ventilatory of gas leakage according to claim 5 is characterized in that: the motor in the smoke exhaust ventilator main frame has more than 1 or 2 or 2.

7, according to claim 1 or 2 or 3 or 4 or 5 or 6 described smoke exhaust ventilators, it is characterized in that: be provided with power regulator (4) in the smoke exhaust ventilator host machine part and provide dc supply for the smoke exhaust ventilator main frame with the automatic ventilatory of gas leakage.

8, the smoke exhaust ventilator with the automatic ventilatory of gas leakage according to claim 7 is characterized in that: be provided with relay indicating light (5) and/or voice guard (6) at the smoke exhaust ventilator host panel.

9, the smoke exhaust ventilator with the automatic ventilatory of gas leakage according to claim 8 is characterized in that: Electronic Nose voice guard (9), main frame voice guard (6) are buzzer or voice module.

10, the smoke exhaust ventilator with the automatic ventilatory of gas leakage according to claim 9 is characterized in that: wireless receiving module (3) inside is provided with electronic switch, and electronic switch is controllable silicon or solid-state relay.